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WO2018150964A1 - Motor and pump device - Google Patents

Motor and pump device Download PDF

Info

Publication number
WO2018150964A1
WO2018150964A1 PCT/JP2018/004137 JP2018004137W WO2018150964A1 WO 2018150964 A1 WO2018150964 A1 WO 2018150964A1 JP 2018004137 W JP2018004137 W JP 2018004137W WO 2018150964 A1 WO2018150964 A1 WO 2018150964A1
Authority
WO
WIPO (PCT)
Prior art keywords
connector housing
terminal
outer peripheral
insulator
insulating member
Prior art date
Application number
PCT/JP2018/004137
Other languages
French (fr)
Japanese (ja)
Inventor
山本　岳
大樹 倉谷
Original Assignee
日本電産サンキョー株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日本電産サンキョー株式会社 filed Critical 日本電産サンキョー株式会社
Publication of WO2018150964A1 publication Critical patent/WO2018150964A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/38—Windings characterised by the shape, form or construction of the insulation around winding heads, equalising connectors, or connections thereto
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/44—Protection against moisture or chemical attack; Windings specially adapted for operation in liquid or gas
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/52—Fastening salient pole windings or connections thereto

Definitions

  • the present invention relates to a motor used in a pump device or the like. Moreover, this invention relates to a pump apparatus provided with this motor.
  • a motor including a rotor and a stator disposed around the rotor is known (see, for example, Patent Document 1).
  • the motor described in Patent Document 1 is a stepping motor.
  • the stator includes a stator core, an insulator, and a winding wound around the insulator.
  • the stator also includes a wiring board that is electrically connected by soldering the ends of the windings, and terminal pins that are fixed to the wiring board. The windings are connected via the terminal pins and the wiring board. Current is supplied.
  • the insulator and the connector housing are integrally formed, and the connector is constituted by the terminal pins and the connector housing.
  • One end of the connector housing in the axial direction of the rotor is open.
  • the terminal pins are arranged so as to be parallel to the axial direction of the rotor, and one end side of the terminal pins is fixed to the wiring board.
  • the motor described in Patent Document 1 includes a wiring board in addition to terminal pins as a configuration for supplying current to the windings. Therefore, in the case of the motor described in Patent Document 1, the cost of the motor increases. Moreover, in the motor described in Patent Document 1, a structure for fixing the wiring board is required and an arrangement space for the wiring board is required, which may increase the size of the motor.
  • an object of the present invention is to provide a motor capable of reducing the cost and reducing the size. Moreover, the subject of this invention is providing a pump apparatus provided with this motor.
  • a motor according to the present invention includes a rotor having a driving magnet and a stator that is formed in a cylindrical shape and disposed on the outer peripheral side of the rotor, and the stator includes a plurality of insulating members, and a plurality of stators.
  • a plurality of terminal pins and a connector housing that holds the plurality of terminal pins, where one of the axial directions of the rotor is a first direction and the opposite direction of the first direction is a second direction, the connector housing is an insulating member Of the connector housing, and at least the first direction side portion of the connector housing is disposed closer to the first direction than the insulating member.
  • An end in one direction is open, and a terminal pin is formed in a straight line and arranged in parallel with the axial direction, and at least a part of the terminal pin is arranged inside the connector housing, and the outside of the connector housing And a connecting portion that connects the second direction end of the first terminal portion and the second direction end of the second terminal portion, and the second terminal portion is formed from the connector housing in the radial direction.
  • the conducting wire fixing portion which is the portion of the second terminal portion to which the end portion of the conducting wire is fixed, is the driving coil.
  • the first coil is disposed on the first direction side of the portion wound around the salient pole part.
  • the end portion of the conducting wire constituting the driving coil is fixed to the second terminal portion constituting a part of the terminal pin by soldering. Therefore, in the present invention, the wiring board described in Patent Document 1 is not necessary. Therefore, according to the present invention, the cost of the motor can be reduced. Further, in the present invention, since the wiring board is not required, a structure for fixing the wiring board is not required, and an arrangement space for the wiring board is not required. Therefore, in the present invention, the motor can be reduced in size.
  • the connector housing that holds the terminal pins is connected to the outer part of the insulating member in the radial direction of the rotor. Further, the second terminal portion of the terminal pin to which the end portion of the conducting wire is fixed by soldering is disposed inside the connector housing in the radial direction. Therefore, in the present invention, even if the first terminal portion of the terminal pin is arranged in parallel with the axial direction of the rotor inside the connector housing where the first direction end is open, it is wound around the salient pole portion via the insulating member. It is possible to reduce the length of the lead wire of the rotated drive coil. Therefore, according to the present invention, the drawing operation of the lead wire of the driving coil is facilitated.
  • the second terminal portion is disposed on the inner side of the connector housing in the radial direction, and the lead wire fixing portion which is a portion to which the end portion of the lead wire of the second terminal portion is fixed is the driving coil.
  • the driving coil which is a portion to which the end portion of the lead wire of the second terminal portion is fixed.
  • the second terminal portion is constituted by a straight portion formed in a straight line and arranged in parallel with the first terminal portion, and the first direction side portion of the straight portion is a conducting wire fixing portion.
  • the configuration of the terminal pin can be simplified.
  • the second terminal portion includes a straight portion that is formed in a straight line and is arranged in parallel with the first terminal portion, and a protrusion that protrudes radially inward from the first direction end side of the straight portion.
  • at least any one of the 1st direction side part and protrusion part of a linear part may be a conducting wire fixing
  • a convex portion that protrudes inward in the radial direction is formed on the radially inner side surface of the connector housing, and the convex portion is in contact with the end portion in the first direction of the linear portion. Further, on the second direction side, it is preferable that the inner surface in the radial direction of the connector housing and the straight portion are separated from each other.
  • the radially inner side surface of the connector housing and the straight portion are separated in the radial direction on the second direction side of the convex portion, so that the first direction end portion of the linear portion is the convex portion. Even if it is in contact with the connector, it is possible to suppress deformation of the connector housing due to heat when soldering the end of the conductor to the terminal pin.
  • the connecting portion is formed in a straight line, and a guide portion for guiding the connecting portion is formed on the end surface on the second direction side of the connector housing. If comprised in this way, rotation of the terminal pin at the time of soldering the edge part of conducting wire to the 2nd terminal part (rotation of the terminal pin which makes the axial direction of a rotor the axial direction of rotation) will be prevented by a guide part. It becomes possible. Therefore, it becomes possible to stabilize the state of the terminal pin when soldering the end portion of the conducting wire to the second terminal portion, and as a result, it is easier to solder the end portion of the conducting wire to the terminal pin. It becomes possible.
  • the motor includes a plurality of driving coils, a plurality of insulating members, and a resin-made resin sealing member that covers at least the first direction side and the outer peripheral side of the stator core. It is preferable that the terminal pin is prevented from coming off in the second direction. If comprised in this way, it will become possible to prevent the removal of the terminal pin to the 2nd direction side from a connector housing by the comparatively simple structure using a resin sealing member.
  • the stator core includes an annular outer peripheral ring portion that constitutes the outer peripheral surface of the stator core, the plurality of salient pole portions project radially inward from the outer peripheral ring portion, and the stator includes an insulating member and a connector housing.
  • the connecting portion is in contact with the end surface on the first direction side of the outer peripheral ring portion and in contact with the first direction side portion of the outer peripheral surface of the outer peripheral ring portion. If comprised in this way, when the external force to the outer side of the radial direction of a rotor will act with respect to a connector housing, it will become possible to receive the force which acts on a connection part in the outer periphery ring part of a stator core. Therefore, it is possible to suppress damage to the connection portion when an external force to the outer side in the radial direction of the rotor acts on the connector housing.
  • the stator preferably includes a connecting portion that connects the insulating member and the connector housing, and the connecting portion is preferably formed with a conducting wire guide portion that guides the conducting wire to the second terminal portion. If comprised in this way, it will become possible to perform the drawing-out operation
  • the stator includes a connecting portion that connects the insulating member and the connector housing, and the insulating member, the connector housing, and the connecting portion are integrally formed, and the connecting portion penetrates the connecting portion in the axial direction. It is preferable that a through hole in which the second direction side portion of the second terminal portion is disposed is formed.
  • the connector housing and the connection portion are formed separately from the insulating member and the connector housing and the connection portion are fixed to the insulating member, the connector housing may be detached from the insulating member. If comprised, it will become possible to prevent the connector housing from coming off from the insulating member.
  • the insulating member, the connector housing, and the connection portion are formed integrally with each other, the management of the parts before the assembly of the stator is facilitated.
  • the stator core includes an annular outer peripheral ring portion that constitutes the outer peripheral surface of the stator core, and the plurality of salient pole portions protrude radially inward from the outer peripheral ring portion and are constant in the circumferential direction of the rotor.
  • the outer peripheral ring portions are configured by the same number of outer peripheral portions as the plurality of salient pole portions, the plurality of outer peripheral portions are arranged in the circumferential direction, and each of the plurality of outer peripheral portions has one piece.
  • the salient poles are connected, and a seam is formed at one of the boundaries of the outer peripheral part in the circumferential direction, and the remaining part except for one part of the boundary of the outer peripheral part in the circumferential direction is formed.
  • stator Is formed with a core connecting portion that connects the outer ends of the outer peripheral portion in the circumferential direction
  • the stator includes a connecting portion that connects the insulating member and the connector housing, and the connector housing and the connecting portion are integrally formed
  • the connector is formed with a connector side engaging portion that can be engaged with the insulating member, and each of the plurality of insulating members is formed with an insulating member side engaging portion that can be engaged with the connector side engaging portion. Is preferred.
  • the stator core is formed with a joint at one place on the boundary of the outer peripheral part in the circumferential direction, and the outer circumference in the circumferential direction is left at the remaining part except for one part of the boundary of the outer peripheral part in the circumferential direction.
  • the driving coil is provided via an insulating member in the state of a band-shaped core before the annular outer peripheral ring part is formed.
  • the connector-side engaging portion is formed, and the insulating member-side engaging portion that can be engaged with the connector-side engaging portion is formed in each of the plurality of insulating members. Without changing the Jo, it is possible to change the mounting position of the connector housing relative to the stator core. Therefore, it is possible to easily change the mounting position of the connector housing with respect to the stator core.
  • the insulating member side engaging portion is two projections that protrude in the first direction side of the insulating member and are spaced apart in the circumferential direction, and the connector side engaging portion is It is preferable that there are two recesses into which each of the two protrusions fits. If comprised in this way, it will become possible to attach a connection part to an insulating member by the comparatively simple structure using two protrusion parts and two recessed parts.
  • the motor of the present invention can be used for a pump device including an impeller fixed to a rotating shaft of a rotor.
  • the cost of the motor can be reduced and the motor can be miniaturized.
  • this pump device it is possible to easily perform the operation of drawing out the lead wire of the driving coil and to easily solder the end portion of the conductive wire to the terminal pin.
  • the cost of the motor can be reduced and the motor can be miniaturized.
  • FIG. 1 It is sectional drawing of the pump apparatus with which the motor concerning embodiment of this invention is integrated. It is a perspective view of the stator with a resin sealing member shown in FIG. It is a perspective view of the stator shown in FIG. It is a figure for demonstrating the structure of the stator core shown in FIG. It is a perspective view of a part of an insulator with a connector shown in FIG. It is a perspective view which shows a part of insulator with a connector shown in FIG. 5 from a different direction. It is sectional drawing of the insulator with a connector shown in FIG. It is sectional drawing of the insulator with a connector concerning other embodiment of this invention. It is a perspective view of the insulator with a connector concerning other embodiments of the present invention. It is a perspective view of the state which decomposed
  • FIG. 1 is a cross-sectional view of a pump device 1 in which a motor 3 according to an embodiment of the present invention is incorporated.
  • FIG. 2 is a perspective view of the stator 6 with the resin sealing member 12 shown in FIG.
  • FIG. 3 is a perspective view of the stator 6 shown in FIG.
  • FIG. 4 is a diagram for explaining the configuration of the stator core 24 shown in FIG.
  • the Z1 direction side in FIG. 1 or the like is referred to as the “upper” side
  • the motor 3 of this embodiment is used by being incorporated in the pump device 1.
  • the pump device 1 includes an impeller 2 that is rotated by the power of a motor 3.
  • the motor 3 is a DC brushless motor and includes a rotor 5 and a stator 6.
  • the motor 3 of this embodiment is a three-phase brushless motor.
  • the rotor 5 is disposed so that the axial direction of the rotor 5 coincides with the vertical direction. That is, the vertical direction is the axial direction of the rotor 5.
  • the upward direction (Z1 direction) of this embodiment is a first direction that is one of the axial directions of the rotor 5, and the downward direction (Z2 direction) is the opposite direction of the first direction (that is, the axial direction of the rotor 5).
  • the other direction is the second direction.
  • the radial direction of the rotor 5 is referred to as “radial direction”
  • the circumferential direction (circumferential direction) of the rotor 5 is referred to as “circumferential direction”.
  • the impeller 2, the rotor 5, and the stator 6 are disposed inside the pump case except for an upper end side portion of a connector housing 27 described later.
  • the pump case includes a housing 8 that constitutes a part of the motor 3 and a case body 9 that is fixed to the lower end of the housing 8.
  • the case body 9 is formed with a fluid suction port 9a and a fluid discharge port 9b.
  • a region surrounded by the housing 8 and the case body 9 is a pump chamber 10 through which the fluid sucked from the suction port 9a passes toward the discharge port 9b.
  • a sealing member (not shown) for securing the sealing property of the pump chamber 10 is disposed at a joint portion between the housing 8 and the case body 9.
  • the housing 8 includes a resin-made resin sealing member 12 that covers the stator 6 and a cover member 13 that is fixed to the lower end side of the resin sealing member 12.
  • the rotor 5 includes a rotating shaft 14, a driving magnet 15, and a sleeve 16.
  • the rotating shaft 14 is disposed so that the axial direction of the rotating shaft 14 coincides with the vertical direction.
  • the sleeve 16 is formed in a substantially cylindrical shape with a hook having flanges at both ends in the vertical direction.
  • the sleeve 16 is fixed to the outer peripheral surface of the upper end side portion of the rotating shaft 14.
  • the drive magnet 15 is fixed to the outer peripheral surface of the sleeve 16.
  • the drive magnet 15 is disposed between the flanges of the sleeve 16 formed at both ends in the vertical direction.
  • N poles and S poles are alternately magnetized in the circumferential direction on the outer circumferential surface of the drive magnet 15.
  • the impeller 2 is fixed to the lower end of the rotating shaft 14.
  • the impeller 2 is disposed inside the pump chamber 10.
  • the rotary shaft 14 is rotatably supported by two bearings 17 and 18 arranged so as to sandwich the sleeve 16 in the vertical direction.
  • the bearings 17 and 18 are sliding bearings and are formed in a cylindrical shape with a flange.
  • the bearing 17 disposed below the sleeve 16 is fixed to the cover member 13, and the bearing 18 disposed above the sleeve 16 is fixed to the resin sealing member 12. That is, the rotating shaft 14 is rotatably supported by the cover member 13 via the bearing 17 and is rotatably supported by the resin sealing member 12 via the bearing 18.
  • the bearing 17 is fixed to the cover member 13 with the flange portion of the bearing 17 disposed on the upper side, and the bearing 18 is fixed to the resin sealing member 12 with the flange portion of the bearing 18 disposed on the lower side. ing.
  • An annular bearing plate 19 with which the flange portion of the bearing 17 can contact is fixed to the lower end side of the sleeve 16.
  • An annular bearing plate 20 that can contact the flange of the bearing 18 is fixed to the upper end side of the sleeve 16.
  • the bearings 17 and 18 function as radial bearings of the rotor 5
  • the bearings 17 and 18 and the bearing plates 19 and 20 function as thrust bearings of the rotor 5.
  • An annular seal member 21 is disposed below the bearing 17.
  • the seal member 21 is fixed to the cover member 13.
  • the inner peripheral surface of the seal member 21 is in contact with the outer peripheral surface of the rotating shaft 14.
  • the stator 6 is formed in a cylindrical shape as a whole. Specifically, the stator 6 is formed in a substantially cylindrical shape. The stator 6 is disposed so that the axial direction of the stator 6 coincides with the vertical direction. The stator 6 is disposed on the outer peripheral side of the rotor 5.
  • the stator 6 includes a plurality of drive coils 23, a stator core 24, a plurality of insulators 25 as a plurality of insulating members, a plurality of terminal pins 26, a connector housing 27 that holds the plurality of terminal pins 26, and the insulator 25. And a connector 28 that connects the connector housing 27 to each other.
  • the stator core 24 is a laminated core formed by laminating thin magnetic plates made of a magnetic material.
  • the stator core 24 includes an outer peripheral ring portion 24a formed in an annular shape and a plurality of salient pole portions 24b protruding from the outer peripheral ring portion 24a toward the inner side in the radial direction.
  • the stator core 24 of this embodiment includes nine salient pole portions 24b.
  • the nine salient pole portions 24b are formed at an equiangular pitch, and are arranged at regular intervals in the circumferential direction. Note that the number of salient pole portions 24b included in the stator core 24 may be other than nine.
  • the outer peripheral ring portion 24a is formed in an annular shape, and the shape of the outer peripheral surface of the outer peripheral ring portion 24a when viewed from the vertical direction is a circular shape.
  • the outer peripheral surface of the outer peripheral ring portion 24 a constitutes the outer peripheral surface of the stator core 24.
  • the upper end surface and the lower end surface of the outer peripheral ring portion 24a are planes orthogonal to the vertical direction.
  • the outer periphery ring part 24a is comprised by the nine outer peripheral parts 24c arranged in the circumferential direction. That is, the outer peripheral ring portion 24a is configured by the same number of outer peripheral portions 24c as the salient pole portions 24b.
  • the salient pole portion 24b is formed at the center of the outer peripheral portion 24c in the circumferential direction. That is, one salient pole portion 24b is connected to each of the nine outer peripheral portions 24c.
  • a tip end portion (a radially inner end portion) of the salient pole portion 24b is formed in a substantially arc shape extending toward both sides in the circumferential direction.
  • the tip surface of the salient pole portion 24 b faces the outer peripheral surface of the drive magnet 15.
  • the stator core 24 includes a belt-like core portion 24d (see FIG. 4A) constituted by nine outer peripheral portions 24c connected in a straight line, as shown in FIG. 4, between the outer peripheral portion 24c and the outer peripheral portion 24c. It is a curling core formed by bending at the boundary and connecting the ends. That is, the stator core 24 bends a core core composed of a strip-shaped core portion 24d and nine salient pole portions 24b that project from the strip-shaped core portion 24d in a direction perpendicular to the longitudinal direction of the strip-shaped core portion 24d. It is formed in an annular shape by connecting the ends.
  • a joint 24e is formed at one of the boundaries of the nine outer peripheral portions 24c in the circumferential direction.
  • the end portions of the band-shaped core portion 24d are welded and fixed to each other at the joint 24e, and a weld mark is formed at the joint 24e.
  • the outer ends of the outer peripheral portion 24c in the circumferential direction are adjacent to the boundaries of the remaining eight outer peripheral portions 24c except for one portion where the joint 24e is formed among the boundaries of the nine outer peripheral portions 24c in the circumferential direction.
  • a core connection portion 24f is formed to connect the two.
  • the insulator 25 is made of an insulating material such as resin.
  • the insulator 25 is attached to each salient pole portion 24b, and the stator 6 includes nine insulators 25.
  • the insulator 25 is formed in a tubular shape with a flange having flanges at both ends, and the salient pole portion 24b so that the axial direction of the insulator 25 formed in the tubular shape matches the radial direction of the stator 6. Is attached.
  • the insulator 25 includes a first cover portion 25a that covers the salient pole portion 24b, and a second cover portion 25b that covers a part of the inner peripheral surface of the outer peripheral ring portion 24a and a part of both upper and lower end surfaces of the outer peripheral ring portion 24a. I have.
  • the second cover portion 25b covers a part of the inner peripheral surface of the outer peripheral ring portion 24a from the inside in the radial direction.
  • the second cover portion 25b covers a part of the upper end surface of the outer peripheral ring portion 24a from the upper side and covers a part of the lower end surface of the outer peripheral ring portion 24a from the lower side.
  • the upper end surface and the lower end surface of the second cover portion 25b are planes orthogonal to the vertical direction.
  • the second cover portion 25b includes two protrusion portions 25c that protrude upward from the upper end surface of the second cover portion 25b, and two protrusion portions 25d that protrude downward from the lower end surface of the second cover portion 25b. Is formed.
  • the insulator 25 is formed with two protrusions 25 c that protrude upward from the insulator 25 and two protrusions 25 d that protrude downward from the insulator 25.
  • the two protrusions 25c are arranged with a gap in the circumferential direction, and the two protrusions 25d are arranged with a gap in the circumferential direction.
  • the protrusions 25c and 25d have a circular arc shape when viewed from the vertical direction.
  • One of the two protruding portions 25c is formed from one end of the second cover portion 25b in the circumferential direction toward the other end side in the circumferential direction, and the other protruding portion 25c is the first protruding portion 25c in the circumferential direction.
  • the two cover portions 25b are formed from the other end toward one end side in the circumferential direction.
  • one of the two protruding portions 25d is formed from one end of the second cover portion 25b in the circumferential direction toward the other end side in the circumferential direction, and the other protruding portion 25d is formed in the circumferential direction. It is formed from the other end of the second cover portion 25b in the direction toward one end side in the circumferential direction.
  • the connector housing 27 and the connecting portion 28 are made of an insulating material such as resin.
  • the insulator 25, the connector housing 27, and the connection portion 28 are integrally formed.
  • one of the nine insulators 25, the connector housing 27, and the connection portion 28 are integrally formed. That is, one of the nine insulators 25 is an insulator 25 with a connector housing 27.
  • the connector housing 27 is connected to the outer portion of the insulator 25 in the radial direction. Further, the connector housing 27 is connected to the upper portion of the insulator 25. Specifically, the connection portion 28 is an upper portion of the insulator 25 and is connected to a radially outer portion of the insulator 25, and the connector housing 27 is connected to the insulator 25 via the connection portion 28. The upper portion is connected to the radially outer portion of the insulator 25.
  • the upper part of the connector housing 27 is disposed above the insulator 25. In this embodiment, most of the connector housing 27 excluding a part on the lower end side of the connector housing 27 is disposed above the insulator 25. Detailed configurations of the connector housing 27 and the connecting portion 28 will be described later.
  • the driving coil 23 is composed of a conductive wire 23a made of an aluminum alloy or a copper alloy.
  • the driving coil 23 is wound around the salient pole portion 24 b via an insulator 25. That is, each of the nine drive coils 23 is wound around each of the nine salient pole portions 24 b via each of the nine insulators 25.
  • the motor 3 of this embodiment is a three-phase brushless motor, and the three driving coils 23 of the nine driving coils 23 are U-phase coils, and the remaining six drives. Three of the driving coils 23 are V-phase coils, and the remaining three driving coils 23 are W-phase coils.
  • the U-phase coil, the V-phase coil, and the W-phase coil are arranged in this order in the circumferential direction.
  • the resin sealing member 12 is provided to completely cover the drive coil 23 and protect the drive coil 23 from the fluid.
  • the resin sealing member 12 includes a cylindrical portion 12a formed in a substantially cylindrical shape and a bottom portion 12b formed in a substantially disk shape, and is formed in a substantially bottomed cylindrical shape as a whole.
  • the cylinder part 12a is formed in a thick, substantially cylindrical shape, and is arranged such that the axial direction of the cylinder part 12a coincides with the vertical direction.
  • the bottom portion 12b closes the upper end of the cylindrical portion 12a.
  • a bearing 18 is fixed to the center of the bottom surface of the bottom portion 12b.
  • the resin sealing member 12 is formed of BMC (Bulk Molding Compound).
  • the resin sealing member 12 is formed by disposing the stator 6 in a mold and injecting a resin material into the mold and curing the resin material. That is, the resin sealing member 12 is integrally formed with the stator 6.
  • the outer peripheral end portion of the lower end surface of the outer peripheral ring portion 24 a of the stator core 24, the tip end surface (radial inner surface) of the salient pole portion 24 b and the upper end side portion of the connector housing 27 are not covered with the resin sealing member 12.
  • the other parts of the stator 6 are covered with a resin sealing member 12 (see FIGS. 1 and 2). That is, the nine drive coils 23, the nine insulators 25, and the stator core 24 are covered with the resin sealing member 12 on the upper side and the outer peripheral side (outside in the radial direction).
  • the cover member 13 is a resin part formed separately from the resin sealing member 12.
  • This cover member 13 is comprised from the cylinder part 13a formed in a substantially cylindrical shape, and the bottom part 13b formed in a substantially disc shape, and is formed in the substantially bottomed cylindrical shape as a whole.
  • the cover member 13 is fixed to the lower end side of the resin sealing member 12.
  • the cylinder part 13a is arrange
  • the cylinder portion 13a covers the lower end portion of the resin sealing member 12 from the outside in the radial direction.
  • the bottom portion 13b closes the lower end of the cylindrical portion 13a.
  • a through hole is formed at the center of the bottom portion 13b. The bearing 17 and the seal member 21 are fixed in the through hole.
  • FIG. 5 is a perspective view of a part of the insulator 25 with the connector 30 shown in FIG. 6 is a perspective view showing a part of the insulator 25 with the connector 30 shown in FIG. 5 from different directions.
  • FIG. 7 is a cross-sectional view of the insulator 25 with the connector 30 shown in FIG.
  • the motor 3 is a three-phase brushless motor
  • the stator 6 includes three U-phase coils, three V-phase coils, and three W-phase coils as the drive coil 23.
  • the three U-phase coils are formed by sequentially winding one conductive wire 23a around the three salient pole portions 24b, and the three V-phase coils have three conductive wires 23a.
  • the three W-phase coils are formed by being sequentially wound around the pole portions 24b, and the three W-phase coils are formed by sequentially winding one conductive wire 23a around the three salient pole portions 24b.
  • the stator 6 constitutes a W-phase coil, a terminal pin 26 to which one end portion of a conducting wire 23a constituting a U-phase coil is connected, a terminal pin 26 to which one end portion of a conducting wire 23a constituting a V-phase coil is connected.
  • Three terminal pins 26 are provided with a terminal pin 26 to which one end of the conducting wire 23a is connected.
  • a female connector 30 for supplying a current to the driving coil 23 is constituted by the three terminal pins 26 and the connector housing 27.
  • a male connector (not shown) is fitted into the connector 30.
  • the other end part of the conducting wire 23a which comprises a U-phase coil, the other end part of the conducting wire 23a which comprises a V-phase coil, and the other end part of the conducting wire 23a which comprises a W-phase coil are mutually connected.
  • the terminal pin 26 is formed by bending a metal wire having a square cross-sectional shape.
  • the terminal pin 26 includes a first terminal portion 26a disposed inside the connector housing 27, a second terminal portion 26b disposed outside the connector housing 27, a first terminal portion 26a, and a second terminal portion 26b. It is comprised from the connection part 26c which connects.
  • the terminal pin 26 may be formed by bending a metal wire having a circular cross-sectional shape.
  • the first terminal portion 26a, the second terminal portion 26b, and the connecting portion 26c are formed in a straight line.
  • the 1st terminal part 26a and the connection part 26c are connected so that it may mutually orthogonally cross.
  • the 2nd terminal part 26b and the connection part 26c are connected so that it may mutually orthogonally cross.
  • the first terminal portion 26a and the second terminal portion 26b extend in the same direction from the connecting portion 26c. That is, the first terminal portion 26a and the second terminal portion 26b are arranged in parallel.
  • the shape of the terminal pin 26 is substantially U shape.
  • the first terminal portion 26a and the second terminal portion 26b formed in a straight line are arranged so as to be parallel to the vertical direction.
  • the connecting portion 26c connects the lower end of the first terminal portion 26a and the lower end of the second terminal portion 26b.
  • the lower end of the first terminal portion 26a and the lower end of the second terminal portion 26b are arranged at the same position in the vertical direction, and the connecting portion 26c formed in a linear shape is arranged so as to be substantially parallel to the radial direction. ing.
  • the first terminal portion 26a is connected to the radially outer end of the connecting portion 26c, and the second terminal portion 26b is connected to the radially inner end of the connecting portion 26c.
  • the upper end of the first terminal portion 26a is disposed above the upper end of the second terminal portion 26b.
  • the second terminal portion 26b is disposed inside the connector housing 27 in the radial direction.
  • the 2nd terminal part 26b of this form is a linear part formed in the shape of a straight line, and arranged in parallel with the 1st terminal part 26a.
  • the terminal pin 26 is formed by bending a metal wire having a square cross-sectional shape into a substantially U shape so that the upper side surface and the lower side surface of the connecting portion 26c are orthogonal to the vertical direction. At the same time, the terminal pin 26 is held by the connector housing 27.
  • the insulator 25, the connector housing 27, and the connecting portion 28 are integrally formed.
  • the insulator 25, the connector housing 27, and the connection portion 28 are integrally formed by insert molding in which a mold is filled with a resin in which the stator core 24 is disposed.
  • the connecting portion 28 is integrated with the stator core 24.
  • insert molding is performed on the core core composed of the strip-shaped core portion 24d and the nine salient pole portions 24b.
  • the driving coil 23 is wound around the salient pole portion 24b via the insulator 25, and then the belt-shaped core portion 24d is bent at the boundary between the outer peripheral portion 24c and the outer peripheral portion 24c. Connect the ends of 24d.
  • the connector housing 27 is formed in a substantially rectangular parallelepiped box shape.
  • the upper end of the connector housing 27 is open. That is, the connector housing 27 is formed in a substantially rectangular parallelepiped box shape whose upper surface is open.
  • the lower end surface of the connector housing 27 is orthogonal to the vertical direction, and the inner and outer surfaces of the connector housing 27 in the radial direction are orthogonal to the radial direction.
  • a male connector placement space 27a to be inserted into the connector 30 is formed inside the upper end side of the connector housing 27, and the male connector is inserted into the connector housing 27 from above.
  • the lower side of the arrangement space 27 a is a bottom portion 27 b of the connector housing 27.
  • the bottom portion 27b is formed with three through holes 27c in which the respective lower end portions of the first terminal portions 26a of the three terminal pins 26 are disposed (see FIG. 7).
  • the through hole 27c penetrates the bottom portion 27b in the vertical direction.
  • the three through holes 27c are formed in a state in which they are spaced from each other in a direction orthogonal to the vertical direction and the radial direction (hereinafter, this direction is referred to as “orthogonal direction”). That is, the three terminal pins 26 are arranged in a state of being spaced apart in the orthogonal direction.
  • a guide portion 27d for guiding the connecting portion 26c is formed on the bottom surface of the bottom portion 27b (that is, the lower end surface of the connector housing 27). Specifically, as shown in FIG. 6, two convex portions 27e that protrude downward from the bottom surface of the bottom portion 27b and that are in contact with both side surfaces of the connecting portion 26c in the orthogonal direction are formed on the bottom portion 27b.
  • a guide portion 27d is constituted by the two convex portions 27e. The guide portion 27d guides the connecting portion 26c in a substantially radial direction orthogonal to the vertical direction and the orthogonal direction.
  • the upper surface of the connecting portion 26c is in contact with the lower surface of the bottom portion 27b between the two convex portions 27e.
  • the lower surface of the connecting portion 26c is disposed above the upper end surface of the stator core 24 (see FIG. 7).
  • a meat stealing portion 27f that is recessed upward from the lower surface of the bottom portion 27b is formed on the bottom portion 27b, and the convex portion 27e is orthogonal to the vertical direction and the orthogonal direction by the meat stealing portion 27f. It is divided in a substantially radial direction.
  • a convex portion 27g that protrudes inward in the radial direction is formed on the inner side surface of the connector housing 27 in the radial direction.
  • the convex portion 27g is formed in a rectangular parallelepiped shape elongated in the orthogonal direction.
  • the convex portion 27g is formed at a substantially central position in the vertical direction on the inner surface in the radial direction of the connector housing 27.
  • the radially inner side surface of the convex portion 27g is a plane perpendicular to the radial direction.
  • the upper end portions of the three second terminal portions 26b are in contact with the convex portion 27g. Specifically, the radially outer surface of the upper end portion of the second terminal portion 26b is in contact with the radially inner surface of the convex portion 27g.
  • the terminal pin 26 is attached to the connector housing 27 from the lower side of the connector housing 27. Specifically, the terminal pin 26 is attached to the connector housing 27 by inserting the first terminal portion 26 a into the through hole 27 c from below. As shown in FIG. 7, a gap is formed between the radially inner side surface of the connector housing 27 and the second terminal portion 26b below the convex portion 27g. The side surface is separated from the second terminal portion 26b.
  • the connecting portion 28 connects the insulator 25 and the connector housing 27 as described above. Specifically, the connection portion 28 connects the upper end side portion of the insulator 25 and the lower end side portion of the connector housing 27, and the upper end side portion of the connector housing 27 is disposed above the connection portion 28. . Further, the connection portion 28 is disposed on the inner side in the radial direction than the connector housing 27. The connection portion 28 is connected to the second cover portion 25b of the insulator 25. Specifically, the connection portion 28 is an upper portion of the second cover portion 25b and is connected to an outer portion of the second cover portion 25b in the radial direction.
  • the lower surface of the radially inner end portion of the connecting portion 28 is a contact surface 28a that contacts the radially outer portion of the upper end surface of the outer peripheral ring portion 24a (see FIG. 7). That is, the connection part 28 is in contact with the upper end surface of the outer peripheral ring part 24a.
  • the contact surface 28a is connected to the contact surface of the second cover portion 25b that contacts the radially inner portion of the upper end surface of the outer peripheral ring portion 24a and is disposed on the same plane as the contact surface.
  • connection part 28 is contacting the upper part of the outer peripheral surface of the outer periphery ring part 24a. That is, the contact portion 28b that contacts the upper portion of the outer peripheral surface of the outer peripheral ring portion 24a is formed on the connection portion 28 (see FIG. 7).
  • the contact surface 28b is a curved surface having a circular arc shape when viewed from above and below.
  • the contact surface 28b is connected to the radially outer end of the contact surface 28a. Further, the contact surface 28b is formed downward from the radially outer end of the contact surface 28a.
  • the through-hole 28c which penetrates the connection part 28 in the up-down direction is formed in the connection part 28.
  • the shape of the through hole 28c when viewed from the vertical direction is a rectangular shape with the orthogonal direction as the longitudinal direction.
  • the lower part of the radially inner side surface of the connector housing 27 is the radially outer side surface of the through hole 28c.
  • the through hole 28 c is formed below the convex portion 27 g of the connector housing 27.
  • the width of the through hole 28c in the orthogonal direction is wider than the width of the convex portion 27g.
  • the inner side surface in the radial direction of the through hole 28c is arranged on the inner side in the radial direction from the inner side surface in the radial direction of the convex portion 27g.
  • a lower end side portion of the second terminal portion 26b is disposed in the through hole 28c.
  • Two projecting portions 28d projecting upward are formed on the front portion of the through hole 28c on the upper surface of the connecting portion 28.
  • the two projecting portions 28d are formed in a state of being spaced apart in the orthogonal direction.
  • one of the two protrusions 28d is formed from the central part of the connection part 28 in the orthogonal direction toward one side in the orthogonal direction, and the other protrusion 28d is connected in the orthogonal direction. It is formed from the center of the portion 28 toward the other side in the orthogonal direction.
  • each of the two protrusions 28e is formed from the outer end in the circumferential direction of each of the two protrusions 25c toward the outer side in the radial direction.
  • Two projecting portions 28f are formed on both outer sides in the orthogonal direction of the two projecting portions 28d and on the outer side in the radial direction of the projecting portion 28e.
  • the radially inner side surface of the protrusion 28f is an inclined surface that is inclined toward the protrusion 28d as it goes outward in the radial direction.
  • the upper end surface of the projection 25c, the upper end surface of the projection 28d, the upper end surface of the projection 28e, and the upper end surface of the projection 28f are arranged at the same position in the vertical direction.
  • One end portion of the conducting wire 23a is soldered and fixed to the second terminal portion 26b.
  • the conducting wire 23a is routed along the radial inner surface of the second terminal portion 26b, and one end of the conducting wire 23a is formed on the radial inner surface of the upper portion of the second terminal portion 26b.
  • the part is fixed by soldering.
  • the upper portion of the second terminal portion 26b is a lead wire fixing portion 26d that is a portion to which one end portion of the lead wire 23a is fixed.
  • the lead wire fixing portion 26d is disposed above the portion of the driving coil 23 wound around the salient pole portion 24b.
  • the conducting wire fixing portion 26d is disposed above the upper end surfaces of the projecting portions 25c, 28d to 28f.
  • the insulator 25 in which the connector housing 27 is integrally formed is a first insulator 25, the insulator 25 adjacent to the first insulator 25 on one side in the circumferential direction is a second insulator 25, and the other side in the circumferential direction is the first insulator 25.
  • the adjacent insulator 25 is the third insulator 25, the conductor 23a of the drive coil 23 wound around the first insulator 25 is the first conductor 23a, and the conductor of the drive coil 23 wound around the second insulator 25 is.
  • 23a is the second conductor 23a, and the conductor 23a of the driving coil 23 wound around the third insulator 25 is the third conductor 23a.
  • the terminal pin is arranged at the center of the three terminal pins 26 in the orthogonal direction.
  • the first terminal pin 26 is the first terminal pin 26 and is arranged on the second insulator 25 side in the orthogonal direction. If the terminal pin 26 to be used is the second terminal pin 26 and the terminal pin 26 arranged on the third insulator 25 side in the orthogonal direction is the third terminal pin 26, one end of the first conducting wire 23 a is the first terminal pin. 26, fixed to the conductive wire fixing portion 26d, one end of the second conductive wire 23a is fixed to the conductive wire fixing portion 26d of the second terminal pin 26, and one end of the third conductive wire 23a is fixed to the conductive wire of the third terminal pin 27. It is fixed to the part 26d.
  • the first conductor 23 a is routed so as to pass between the two protrusions 25 c of the first insulator 25 and between the two protrusions 28 d of the connection part 28. Yes.
  • the second conducting wire 23a passes between the protruding portion 28e and the protruding portion 28f arranged on the second insulator 25 side and between the protruding portion 28f and the protruding portion 28d arranged on the second insulator 25 side.
  • the third conducting wire 23a is routed so as to pass between the protruding portion 28e and the protruding portion 28f disposed on the third insulator 25 side and between the protruding portion 28f and the protruding portion 28d.
  • the two projecting portions 28d serve to guide the first conductive wire 23a to the second terminal portion 26b of the first terminal pin 26. That is, the two projections 28 d serve to guide the lead wire of the driving coil 23 wound around the first insulator 25 to the second terminal portion 26 b of the first terminal pin 26.
  • a conductor guide portion 28g that guides the first conductor 23a to the second terminal portion 26b of the first terminal pin 26 is constituted by the two protrusions 28d. That is, the connecting portion 28 is formed with a conducting wire guide portion 28g.
  • the interval between the two protrusions 25c of the first insulator 25 is narrower than the interval between the two protrusions 25c of the other insulators 25, and the two protrusions 25c of the first insulator 25 are also
  • the first conducting wire 23 a is guided to the second terminal portion 26 b of the first terminal pin 26.
  • the projections 28d to 28f arranged on the second insulator 25 side serve to guide the second conductor 23a to the second terminal portion 26b of the second terminal pin 26. That is, the projections 28d to 28f arranged on the second insulator 25 side function to guide the lead wire of the driving coil 23 wound around the second insulator 25 to the second terminal portion 26b of the second terminal pin 26.
  • the conductive wire guide portion 28h that guides the second conductive wire 23a to the second terminal portion 26b of the second terminal pin 26 is constituted by the projections 28d to 28f arranged on the second insulator 25 side.
  • the protrusions 28d to 28f arranged on the third insulator 25 side serve to guide the third conductor 23a to the second terminal portion 26b of the third terminal pin 26. That is, the protrusions 28d to 28f arranged on the third insulator 25 side function to guide the lead wire of the driving coil 23 wound around the third insulator 25 to the second terminal portion 26b of the third terminal pin 26.
  • a conductor guide portion 28h that guides the third conductor 23a to the second terminal portion 26b of the third terminal pin 26 is constituted by the projections 28d to 28f arranged on the third insulator 25 side. As described above, two conductor guide portions 28 h are formed in the connection portion 28.
  • the outer peripheral end portion of the lower end surface of the outer peripheral ring portion 24a of the stator core 24, the tip end surface of the salient pole portion 24b, and the upper end side portion of the connector housing 27 are not covered with the resin sealing member 12, but the stator The other part of 6 is covered with a resin sealing member 12. That is, as shown in FIG. 2, the second terminal portion 26b of the terminal pin 26 is covered with the resin sealing member 12, and below the convex portion 27g, the radially inner side surface of the connector housing 27 Part of the resin sealing member 12 is filled in the gap formed between the second terminal portion 26b.
  • the convex portion 27 g of the connector housing 27 is also covered with the resin sealing member 12.
  • the connecting portion 26c of the terminal pin 26 is also covered with the resin sealing member 12, and the resin sealing member 12 prevents the terminal pin 26 from coming off from the connector housing 27 to the lower side.
  • one end portion of the conducting wire 23a is soldered and fixed to the second terminal portion 26b of the terminal pin 26, and the conducting wire 23a is directly connected to the terminal pin 26. Therefore, in this embodiment, a wiring board for connecting the conductive wire 23a and the terminal pin 26 becomes unnecessary. Therefore, in this embodiment, the cost of the motor 3 can be reduced. Further, in this embodiment, since a wiring board is not required, a structure for fixing the wiring board is not required, and an arrangement space for the wiring board is not required. Therefore, in this embodiment, the motor 3 can be reduced in size.
  • the connector housing 27 is connected to the outer portion of the insulator 25 in the radial direction. Further, the second terminal portion 26b of the terminal pin 26 to which the end portion of the conducting wire 23a is fixed by soldering is disposed inside the connector housing 27 in the radial direction. Therefore, in this embodiment, even if the first terminal portion 26a of the terminal pin 26 is arranged in parallel with the vertical direction inside the connector housing 27 whose upper end is open, it is wound around the salient pole portion 24b via the insulator 25. It is possible to reduce the length of the lead wire of the driving coil 23 that has been made. Therefore, in this embodiment, the drawing operation of the lead wire of the driving coil 23 is facilitated.
  • the lead wire guide portions 28g and 28h for guiding the lead wire 23a to the second terminal portion 26b are formed in the connection portion 28, the lead-out operation of the driving coil 23 is more easily performed. It becomes possible.
  • the second terminal portion 26b is disposed inside the connector housing 27 in the radial direction, and the lead wire fixing portion 26d, which is a portion to which the end portion of the lead wire 23a of the second terminal portion 26b is fixed,
  • the driving coil 23 is disposed above the portion wound around the salient pole portion 24b. Therefore, in this embodiment, even if the first terminal portion 26a is arranged in parallel with the vertical direction inside the connector housing 27 whose upper end is open, the connector housing 27 is located above the insulator 25 and in the radial direction. It is possible to secure a working space for soldering the end portion of the conductive wire 23a to the second terminal portion 26b. Therefore, in this embodiment, it is possible to easily perform the soldering operation of the end portion of the conducting wire 23a to the terminal pin 26.
  • a convex portion 27g that protrudes inward in the radial direction is formed on the radially inner side surface of the connector housing 27, and the upper end side portion of the second terminal portion 26b is in contact with the convex portion 27g. Yes. Therefore, in this embodiment, rotation of the terminal pin 26 (specifically, rotation of the terminal pin 26 with the vertical direction being the axial direction of rotation) when soldering the end of the conductor 23a to the second terminal portion 26b and The convex portion 27g can prevent the second terminal portion 26b from bending outward in the radial direction.
  • the conductor 23a is connected to the second terminal portion 26b.
  • the rotation of the terminal pin 26 when soldering the end portion can be prevented by the convex portion 27e. Therefore, in this embodiment, it is possible to stabilize the state of the terminal pin 26 when the end portion of the conducting wire 23a is soldered to the second terminal portion 26b. As a result, the end portion of the conducting wire 23a to the terminal pin 26 can be stabilized. This makes it possible to perform the soldering work more easily.
  • the inner side surface in the radial direction of the connector housing 27 and the second terminal portion 26b are separated in the radial direction below the convex portion 27g of the connector housing 27. Therefore, in this embodiment, even if the upper end side portion of the second terminal portion 26b is in contact with the convex portion 27g, the connector housing 27 is caused by the heat generated when the end portion of the conducting wire 23a is soldered to the second terminal portion 26b. Can be suppressed.
  • the connecting portion 26c of the terminal pin 26 is covered with the resin sealing member 12, and the resin sealing member 12 prevents the terminal pin 26 from coming off from the connector housing 27 downward. Therefore, in this embodiment, it is possible to prevent the terminal pin 26 from coming off from the connector housing 27 by using the resin sealing member 12 provided to protect the driving coil 23 from the fluid. Become.
  • the connecting portion 28 connecting the insulator 25 and the connector housing 27 is in contact with the upper end surface of the outer peripheral ring portion 24a of the stator core 24 and is in contact with the upper portion of the outer peripheral surface of the outer peripheral ring portion 24a.
  • the manufacturing process before the stator 6 is covered with the resin sealing member 12 for example, the step of winding the driving coil 23 around the salient pole portion 24b, or the end of the conductive wire 23a is connected to the second terminal portion.
  • the step of soldering and fixing to 26b even if an external force is applied to the connector housing 27 outward in the radial direction, damage to the connecting portion 28 can be suppressed.
  • the insulator 25, the connector housing 27, and the connecting portion 28 are integrally formed.
  • the manufacturing process before the stator 6 is covered with the resin sealing member 12
  • the insulator 25, the connector housing 27, and the connection portion 28 are integrally formed, the stator 6 is covered with the resin sealing member 12.
  • the insulator 25, the connector housing 27, and the connection portion 28 are integrally formed, it is easy to manage the parts before the stator 6 is assembled.
  • the insulator 25, the connector housing 27, and the connecting portion 28 are integrally formed by insert molding in which a resin is filled in a mold in which the stator core 24 is disposed, and therefore the insulator 25, The adhesion of the connector housing 27 and the connecting portion 28 to the stator core 24 can be improved. Therefore, in this embodiment, the strength of the insulator 25, the connector housing 27, and the connection portion 28 can be increased.
  • connection portion 28 is formed with a through hole 28c penetrating the connection portion 28 in the vertical direction.
  • the lower portion of the radially inner side surface of the connector housing 27 is the radially outer side surface of the through hole 28c.
  • the width of the through hole 28c in the orthogonal direction is wider than the width of the convex portion 27g formed on the radially inner side surface of the connector housing 27, and the side surface on the radially inner side of the through hole 28c.
  • the mold is divided into two in the vertical direction.
  • the connector housing 27 and the connecting portion 28 can be integrally formed. Therefore, in this embodiment, even if the convex portion 27g is formed on the radially inner side surface of the connector housing 27, the manufacturing cost of the insulator 25, the connector housing 27, and the connection portion 28 can be reduced.
  • FIG. 8 is a cross-sectional view of an insulator 25 with a connector 30 according to another embodiment of the present invention.
  • symbol is attached
  • a protruding portion 26e protruding inward in the radial direction may be formed at the upper end of the second terminal portion 26b of the terminal pin 26. That is, as shown in FIG. 8, the second terminal portion 26b is formed in a straight line shape and is arranged in parallel with the first terminal portion 26a, and protrudes radially inward from the upper end of the straight portion 26f. You may be comprised from the protrusion part 26e.
  • the end portion of the conducting wire 23a is soldered and fixed to the second terminal portion 26b.
  • the end portion of the conducting wire 23a is soldered and fixed to the second terminal portion 26b.
  • the end portion of the conducting wire 23a is soldered and fixed to the second terminal portion 26b.
  • the end of the conductor 23a is soldered and fixed to the upper portion of the straight portion 26f, or the end of the conductor 23a is soldered and fixed to the protruding portion 26e.
  • the edge part of the conducting wire 23a is soldered and fixed to the upper part of the linear part 26f, and the protrusion part 26e. That is, in this case, the end portion of the conductive wire 23a is soldered and fixed to at least one of the upper portion of the straight portion 26f and the protruding portion 26e, and the upper portion of the straight portion 26f and the protruding portion 26e are fixed. At least one of them is a conductive wire fixing portion that is a portion to which the end of the conductive wire 23a is fixed.
  • the configuration of the terminal pin 26 can be simplified if the second terminal portion 26b is formed linearly as in the above-described form.
  • FIG. 9 is a perspective view of an insulator 25 with a connector 30 according to another embodiment of the present invention.
  • FIG. 10 is a perspective view of the connector 30 and the insulator 25 shown in FIG. 9 in an exploded state.
  • symbol is attached
  • the insulator 25, the connector housing 27, and the connection portion 28 are integrally formed.
  • the connector housing 27 and the connection portion 28 are integrally formed, and the connector housing 27 and the connection portion 28 are formed.
  • the insulator 25 may be formed separately and the connector housing 27 and the connection portion 28 may be fixed to the insulator 25.
  • the connecting portion 28 is formed with a protruding portion 28 k that protrudes inward in the radial direction.
  • Two protrusions 28p extending to both sides in the orthogonal direction are formed at the radially inner end of the protrusion 28k.
  • a radially outer portion of the protruding portion 28p is a recessed portion 28r that is recessed toward the inner side in the orthogonal direction.
  • the protrusion 25c of the insulator 25 is fitted in the recess 28r. That is, the connection portion 28 is formed with two recesses 28r into which the two protrusions 25c are fitted. Each of the two recessed portions 28r is fitted with each of the inner end portions in the circumferential direction of the two protruding portions 25c.
  • the connector housing 27 and the connection portion 28 are fixed to the insulator 25 by fitting the two protrusions 25c into the two recesses 28r, respectively. In a state where the connector housing 27 and the connection portion 28 are fixed to the insulator 25, the lower surface of the radially inner end portion of the connection portion 28 is in contact with the upper end surface of the second cover portion 25b.
  • the two recesses 28r are connector-side engaging portions that can be engaged with the insulator 25.
  • the two protrusions 25c are insulating member-side engaging portions that can be engaged with the two concave portions 28r that are the connector-side engaging portions, and each of the nine insulators 25 has an insulating member-side engaging portion. Is formed.
  • the stator core 24 is a curling core
  • the belt-like core part 24d is bent at the boundary between the outer peripheral part 24c and the outer peripheral part 24c.
  • the connector housing 27 may be attached at a position corresponding to the outer peripheral portion 24c disposed at the end of the strip-shaped core portion 24d shown in FIG. In some cases, the connector housing 27 may be attached to the position where the operation is performed.
  • the connector housing 27 and the connection portion 28 and the insulator 25 are formed separately, and two protrusions 25 c are formed on each of the nine insulators 25. Since the two recesses 28r are formed, the mounting position of the connector housing 27 with respect to the stator core 24 can be changed without changing the shape of the insulator 25. Therefore, the mounting position of the connector housing 27 with respect to the stator core 24 can be easily changed.
  • connection part 28 can be attached to the insulator 25 using the two protrusion parts 25c and the two recessed parts 28r, the connection part 28 is connected to the insulator 25 with a relatively simple configuration. It becomes possible to install.
  • the insulator 25 includes an upper insulator 35 and a lower insulator 36 that are divided into two in the vertical direction.
  • the upper insulator 35 and the lower insulator 36 are formed separately, and the insulator 25 is not formed by insert molding.
  • the upper insulator 35 and the lower insulator 36 are attached to the core body composed of the strip-shaped core portion 24d and the nine salient pole portions 24b, and the connector housing 27 and the connection portion 28 are connected to the insulator.
  • the drive coil 23 is wound around the salient pole portion 24b via the insulator 25, and then the belt-like core portion 24d is connected to the outer peripheral portion 24c and the outer peripheral portion 24c.
  • the ends of the belt-like core portion 24d are connected to each other.
  • the insulator 25 may be formed by insert molding.
  • a guide groove 28 s that guides the first conductor 23 a to the second terminal portion 26 b of the first terminal pin 26 instead of the conductor guide portion 28 g of the above-described form. It is formed on the upper surface.
  • a guide groove 28t for guiding the second conductor 23a to the second terminal portion 26b of the second terminal pin 26, and the third conductor 23a as the third terminal pin instead of the two conductor guide portions 28h of the above-described form, a guide groove 28t for guiding the second conductor 23a to the second terminal portion 26b of the second terminal pin 26, and the third conductor 23a as the third terminal pin.
  • a guide groove 28 t that guides to the second terminal portion 26 b of 26 is formed on the upper surface of the connection portion 28.
  • the guide grooves 28s and 28t are formed in a rectangular groove shape that is recessed downward from the upper surface of the connection portion 28, and are also formed in a straight line shape.
  • the guide grooves 28 s and 28 t are conductive wire guide portions that guide the conductive wire 23 a to the second terminal portion 26 b.
  • the second terminal portion 26b formed in a linear shape is arranged in parallel with the first terminal portion 26a formed in a linear shape, but the second terminal portion 26b is arranged in the first terminal portion 26a. It is not necessary to be arranged in parallel. Moreover, in the form mentioned above, the position of the lower end of the 1st terminal part 26a and the position of the lower end of the 2nd terminal part 26b may have shifted
  • the upper portion of the connector housing 27 is disposed above the insulator 25, but the entire connector housing 27 may be disposed above the insulator 25.
  • the entire first terminal portion 26 a is disposed inside the connector housing 27, but a part of the lower end side of the first terminal portion 26 a may be disposed outside the connector housing 27. .
  • the nine insulators 25 are not connected in the circumferential direction, but the nine insulators 9 may be connected in the circumferential direction.
  • the insulator 25 may be composed of an upper insulator 35 and a lower insulator 36 as in the modification examples shown in FIGS. 9 and 10. That is, in the embodiment described above, the insulator 25, the connector housing 27, and the connection portion 28 may not be formed by insert molding. In this case, the upper insulator 35, the connector housing 27, and the connection portion 28 are integrally formed.
  • the connector housing 27 may not have the guide portion 27d or the convex portion 27g.
  • the stator core 24 may be a so-called divided core formed by combining a plurality of cores divided in the circumferential direction.
  • the stator core 24 may be an integrated annular core formed by laminating thin magnetic plates formed in an annular shape.
  • the motor 3 is used for the pump apparatus 1, the motor 3 may be used other than the pump apparatus 1.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Motor Or Generator Frames (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Provided is a motor capable of being reduced in cost and capable of being reduced in size. A stator 6 of this motor is equipped with: a terminal pin 26 to which an end of a conducting wire 23a constituting a drive coil 23 is connected; and a connector housing 27 for holding the terminal pin 26. The connector housing 27 is fastened to the outside portion of an insulating member 25 in the radial direction of a rotor, and a Z1-direction side portion of the connector housing 27 is disposed on the Z1-direction side with respect to the insulating member 25. The terminal pin 26 is provided with a second terminal portion 26b to which the end of the conducting wire 23a is fixed by soldering. The second terminal portion 26b is disposed inside with respect to the connector housing 27 in the radial direction of the rotor. A conducting wire fixing portion of the second terminal portion 26b, which is a portion to which the end of the conducting wire 23a is fixed, is disposed in the Z1-direction side with respect to a portion where the drive coil 23 is wound around a salient pole portion 24b.

Description

モータおよびポンプ装置Motor and pump equipment
　本発明は、ポンプ装置等で使用されるモータに関する。また、本発明は、かかるモータを備えるポンプ装置に関する。 The present invention relates to a motor used in a pump device or the like. Moreover, this invention relates to a pump apparatus provided with this motor.
　従来、ロータと、ロータの周囲に配置されるステータとを備えるモータが知られている（たとえば、特許文献１参照）。特許文献１に記載のモータは、ステッピングモータである。このモータでは、ステータは、ステータコアと、インシュレータと、インシュレータに巻回された巻線とを備えている。また、ステータは、巻線の端部が半田付けされて電気的に接続される配線基板と、配線基板に固定される端子ピンとを備えており、巻線には、端子ピンおよび配線基板を介して電流が供給されている。 Conventionally, a motor including a rotor and a stator disposed around the rotor is known (see, for example, Patent Document 1). The motor described in Patent Document 1 is a stepping motor. In this motor, the stator includes a stator core, an insulator, and a winding wound around the insulator. The stator also includes a wiring board that is electrically connected by soldering the ends of the windings, and terminal pins that are fixed to the wiring board. The windings are connected via the terminal pins and the wiring board. Current is supplied.
　また、特許文献１に記載のモータでは、インシュレータとコネクタハウジングとが一体で形成されており、端子ピンとコネクタハウジングとによってコネクタが構成されている。ロータの軸方向におけるコネクタハウジングの一端は、開口している。端子ピンは、ロータの軸方向と平行になるように配置されており、端子ピンの一端側が配線基板に固定されている。 Further, in the motor described in Patent Document 1, the insulator and the connector housing are integrally formed, and the connector is constituted by the terminal pins and the connector housing. One end of the connector housing in the axial direction of the rotor is open. The terminal pins are arranged so as to be parallel to the axial direction of the rotor, and one end side of the terminal pins is fixed to the wiring board.
特開２０１４－１３８４５３号公報JP 2014-138453 A
　特許文献１に記載のモータは、巻線に電流を供給するための構成として、端子ピンに加えて配線基板を備えている。そのため、特許文献１に記載のモータの場合、モータのコストが高くなる。また、特許文献１に記載のモータでは、配線基板を固定するための構造が必要になるとともに配線基板の配置スペースが必要になるため、モータが大型化するおそれがある。 The motor described in Patent Document 1 includes a wiring board in addition to terminal pins as a configuration for supplying current to the windings. Therefore, in the case of the motor described in Patent Document 1, the cost of the motor increases. Moreover, in the motor described in Patent Document 1, a structure for fixing the wiring board is required and an arrangement space for the wiring board is required, which may increase the size of the motor.
　そこで、本発明の課題は、コストを低減することが可能でかつ小型化することが可能なモータを提供することにある。また、本発明の課題は、かかるモータを備えるポンプ装置を提供することにある。 Therefore, an object of the present invention is to provide a motor capable of reducing the cost and reducing the size. Moreover, the subject of this invention is providing a pump apparatus provided with this motor.
　上記の課題を解決するため、本発明のモータは、駆動用磁石を有するロータと、筒状に形成されロータの外周側に配置されるステータとを備え、ステータは、複数の絶縁部材と、複数の駆動用コイルと、複数の絶縁部材のそれぞれを介して複数の駆動用コイルのそれぞれが巻回される複数の突極部を有するステータコアと、駆動用コイルを構成する導線の端部が接続される複数の端子ピンと、複数の端子ピンを保持するコネクタハウジングとを備え、ロータの軸方向の一方を第１方向とし、第１方向の反対方向を第２方向とすると、コネクタハウジングは、絶縁部材の、ロータの径方向における外側部分に繋がっており、コネクタハウジングの、少なくとも第１方向側部分は、絶縁部材よりも第１方向側に配置され、コネクタハウジングの第１方向端は、開口しており、端子ピンは、直線状に形成され軸方向と平行に配置されるとともに少なくともその一部分がコネクタハウジングの内部に配置される第１端子部と、コネクタハウジングの外部に配置される第２端子部と、第１端子部の第２方向端と第２端子部の第２方向端とを繋ぐ連結部とを備え、第２端子部は、径方向においてコネクタハウジングよりも内側に配置され、第２端子部には、導線の端部が半田付けによって固定され、第２端子部の、導線の端部が固定される部分である導線固定部は、駆動用コイルの、突極部に巻回された部分よりも第１方向側に配置されていることを特徴とする。 In order to solve the above-described problems, a motor according to the present invention includes a rotor having a driving magnet and a stator that is formed in a cylindrical shape and disposed on the outer peripheral side of the rotor, and the stator includes a plurality of insulating members, and a plurality of stators. The driving coil, a stator core having a plurality of salient pole portions around which each of the plurality of driving coils is wound via each of the plurality of insulating members, and an end portion of a conducting wire constituting the driving coil. A plurality of terminal pins, and a connector housing that holds the plurality of terminal pins, where one of the axial directions of the rotor is a first direction and the opposite direction of the first direction is a second direction, the connector housing is an insulating member Of the connector housing, and at least the first direction side portion of the connector housing is disposed closer to the first direction than the insulating member. An end in one direction is open, and a terminal pin is formed in a straight line and arranged in parallel with the axial direction, and at least a part of the terminal pin is arranged inside the connector housing, and the outside of the connector housing And a connecting portion that connects the second direction end of the first terminal portion and the second direction end of the second terminal portion, and the second terminal portion is formed from the connector housing in the radial direction. Is disposed on the inner side, and the end portion of the conducting wire is fixed to the second terminal portion by soldering, and the conducting wire fixing portion, which is the portion of the second terminal portion to which the end portion of the conducting wire is fixed, is the driving coil. The first coil is disposed on the first direction side of the portion wound around the salient pole part.
　本発明のモータでは、端子ピンの一部を構成する第２端子部に、駆動用コイルを構成する導線の端部が半田付けによって固定されている。そのため、本発明では、特許文献１に記載された配線基板が不要になる。したがって、本発明では、モータのコストを低減することが可能になる。また、本発明では、配線基板が不要になるため、配線基板を固定するための構造が不要になるとともに配線基板の配置スペースが不要になる。したがって、本発明では、モータを小型化することが可能になる。 In the motor of the present invention, the end portion of the conducting wire constituting the driving coil is fixed to the second terminal portion constituting a part of the terminal pin by soldering. Therefore, in the present invention, the wiring board described in Patent Document 1 is not necessary. Therefore, according to the present invention, the cost of the motor can be reduced. Further, in the present invention, since the wiring board is not required, a structure for fixing the wiring board is not required, and an arrangement space for the wiring board is not required. Therefore, in the present invention, the motor can be reduced in size.
　また、本発明では、端子ピンを保持するコネクタハウジングは、絶縁部材の、ロータの径方向における外側部分に繋がっている。また、導線の端部が半田付けによって固定される端子ピンの第２端子部は、径方向においてコネクタハウジングよりも内側に配置されている。そのため、本発明では、第１方向端が開口するコネクタハウジングの内部に、端子ピンの第１端子部がロータの軸方向と平行に配置されていても、絶縁部材を介して突極部に巻回された駆動用コイルの引き出し線の長さを短くすることが可能になる。したがって、本発明では、駆動用コイルの引き出し線の引き回し作業が容易になる。 In the present invention, the connector housing that holds the terminal pins is connected to the outer part of the insulating member in the radial direction of the rotor. Further, the second terminal portion of the terminal pin to which the end portion of the conducting wire is fixed by soldering is disposed inside the connector housing in the radial direction. Therefore, in the present invention, even if the first terminal portion of the terminal pin is arranged in parallel with the axial direction of the rotor inside the connector housing where the first direction end is open, it is wound around the salient pole portion via the insulating member. It is possible to reduce the length of the lead wire of the rotated drive coil. Therefore, according to the present invention, the drawing operation of the lead wire of the driving coil is facilitated.
　また、本発明では、第２端子部が、径方向においてコネクタハウジングより内側に配置されるとともに、第２端子部の、導線の端部が固定される部分である導線固定部は、駆動用コイルの、突極部に巻回された部分よりも第１方向側に配置されている。そのため、本発明では、第１方向端が開口するコネクタハウジングの内部に、端子ピンの第１端子部がロータの軸方向と平行に配置されていても、絶縁部材の第１方向側であって、かつ、径方向におけるコネクタハウジングの内側に、第２端子部に導線の端部を半田付けする際の作業スペースを確保することが可能になる。したがって、本発明では、端子ピンへの導線の端部の半田付け作業を容易に行うことが可能になる。 In the present invention, the second terminal portion is disposed on the inner side of the connector housing in the radial direction, and the lead wire fixing portion which is a portion to which the end portion of the lead wire of the second terminal portion is fixed is the driving coil. These are arranged on the first direction side of the portion wound around the salient pole portion. Therefore, in the present invention, even if the first terminal portion of the terminal pin is arranged in parallel with the axial direction of the rotor inside the connector housing whose first direction end is open, And it becomes possible to ensure the work space at the time of soldering the edge part of conducting wire to the 2nd terminal part inside the connector housing in a diameter direction. Therefore, in the present invention, it is possible to easily perform the soldering operation of the end portion of the conducting wire to the terminal pin.
　本発明において、たとえば、第２端子部は、直線状に形成され第１端子部と平行に配置される直線部によって構成され、直線部の第１方向側部分が導線固定部となっている。この場合には、端子ピンの構成を簡素化することが可能になる。 In the present invention, for example, the second terminal portion is constituted by a straight portion formed in a straight line and arranged in parallel with the first terminal portion, and the first direction side portion of the straight portion is a conducting wire fixing portion. In this case, the configuration of the terminal pin can be simplified.
　本発明において、第２端子部は、直線状に形成され第１端子部と平行に配置される直線部と、直線部の第１方向端側から径方向の内側へ突出する突出部とから構成され、直線部の第１方向側部分および突出部の少なくともいずれか一方が導線固定部となっていても良い。この場合には、導線の端部を突出部に絡げてから第２端子部に半田付けすることが可能になる。したがって、第２端子部に導線の端部を半田付けする際の導線の端部の状態を安定させることが可能になる。 In the present invention, the second terminal portion includes a straight portion that is formed in a straight line and is arranged in parallel with the first terminal portion, and a protrusion that protrudes radially inward from the first direction end side of the straight portion. And at least any one of the 1st direction side part and protrusion part of a linear part may be a conducting wire fixing | fixed part. In this case, it is possible to solder the end portion of the conductive wire to the second terminal portion after the end portion of the conducting wire is entangled with the protruding portion. Therefore, it is possible to stabilize the state of the end portion of the conducting wire when the end portion of the conducting wire is soldered to the second terminal portion.
　本発明において、コネクタハウジングの、径方向の内側面には、径方向の内側に向かって突出する凸部が形成され、凸部には、直線部の第１方向端部分が接触し、凸部よりも第２方向側では、コネクタハウジングの径方向の内側面と直線部とが離れていることが好ましい。 In the present invention, a convex portion that protrudes inward in the radial direction is formed on the radially inner side surface of the connector housing, and the convex portion is in contact with the end portion in the first direction of the linear portion. Further, on the second direction side, it is preferable that the inner surface in the radial direction of the connector housing and the straight portion are separated from each other.
　このように構成すると、第２端子部に導線の端部を半田付けする際の端子ピンの回転（ロータの軸方向を回転の軸方向とする端子ピンの回転）、および、径方向の外側への第２端子部の撓みを凸部によって防止することが可能になる。したがって、第２端子部に導線の端部を半田付けする際の端子ピンの状態を安定させることが可能になり、その結果、端子ピンへの導線の端部の半田付け作業をより容易に行うことが可能になる。また、このように構成すると、凸部よりも第２方向側では、コネクタハウジングの径方向の内側面と直線部とが径方向において離れているため、直線部の第１方向端部分が凸部に接触していても、端子ピンに導線の端部を半田付けする際の熱に起因するコネクタハウジングの変形を抑制することが可能になる。 If comprised in this way, rotation of the terminal pin at the time of soldering the edge part of conducting wire to the 2nd terminal part (rotation of the terminal pin which makes the axial direction of a rotor the axial direction of rotation), and the radial direction outside It is possible to prevent the second terminal portion from being bent by the convex portion. Therefore, it becomes possible to stabilize the state of the terminal pin when soldering the end portion of the conducting wire to the second terminal portion, and as a result, it is easier to solder the end portion of the conducting wire to the terminal pin. It becomes possible. Also, with this configuration, the radially inner side surface of the connector housing and the straight portion are separated in the radial direction on the second direction side of the convex portion, so that the first direction end portion of the linear portion is the convex portion. Even if it is in contact with the connector, it is possible to suppress deformation of the connector housing due to heat when soldering the end of the conductor to the terminal pin.
　本発明において、連結部は、直線状に形成され、コネクタハウジングの第２方向側の端面には、連結部を案内するガイド部が形成されていることが好ましい。このように構成すると、第２端子部に導線の端部を半田付けする際の端子ピンの回転（ロータの軸方向を回転の軸方向とする端子ピンの回転）をガイド部によって防止することが可能になる。したがって、第２端子部に導線の端部を半田付けする際の端子ピンの状態を安定させることが可能になり、その結果、端子ピンへの導線の端部の半田付け作業をより容易に行うことが可能になる。 In the present invention, it is preferable that the connecting portion is formed in a straight line, and a guide portion for guiding the connecting portion is formed on the end surface on the second direction side of the connector housing. If comprised in this way, rotation of the terminal pin at the time of soldering the edge part of conducting wire to the 2nd terminal part (rotation of the terminal pin which makes the axial direction of a rotor the axial direction of rotation) will be prevented by a guide part. It becomes possible. Therefore, it becomes possible to stabilize the state of the terminal pin when soldering the end portion of the conducting wire to the second terminal portion, and as a result, it is easier to solder the end portion of the conducting wire to the terminal pin. It becomes possible.
　本発明において、モータは、複数の駆動用コイル、複数の絶縁部材およびステータコアの少なくとも第１方向側および外周側を覆う樹脂製の樹脂封止部材を備え、樹脂封止部材によって、コネクタハウジングからの第２方向側への端子ピンの抜けが防止されていることが好ましい。このように構成すると、樹脂封止部材を用いた比較的簡易な構成で、コネクタハウジングからの第２方向側への端子ピンの抜けを防止することが可能になる。 In the present invention, the motor includes a plurality of driving coils, a plurality of insulating members, and a resin-made resin sealing member that covers at least the first direction side and the outer peripheral side of the stator core. It is preferable that the terminal pin is prevented from coming off in the second direction. If comprised in this way, it will become possible to prevent the removal of the terminal pin to the 2nd direction side from a connector housing by the comparatively simple structure using a resin sealing member.
　本発明において、ステータコアは、ステータコアの外周面を構成する環状の外周環部を備え、複数の突極部は、外周環部から径方向の内側に向かって突出し、ステータは、絶縁部材とコネクタハウジングとを繋ぐ接続部を備え、接続部は、外周環部の第１方向側の端面に接触するとともに外周環部の外周面の第１方向側部分に接触していることが好ましい。このように構成すると、コネクタハウジングに対してロータの径方向の外側への外力が作用したときに接続部に作用する力をステータコアの外周環部で受けることが可能になる。したがって、コネクタハウジングに対してロータの径方向の外側への外力が作用したときの接続部の損傷を抑制することが可能になる。 In the present invention, the stator core includes an annular outer peripheral ring portion that constitutes the outer peripheral surface of the stator core, the plurality of salient pole portions project radially inward from the outer peripheral ring portion, and the stator includes an insulating member and a connector housing. It is preferable that the connecting portion is in contact with the end surface on the first direction side of the outer peripheral ring portion and in contact with the first direction side portion of the outer peripheral surface of the outer peripheral ring portion. If comprised in this way, when the external force to the outer side of the radial direction of a rotor will act with respect to a connector housing, it will become possible to receive the force which acts on a connection part in the outer periphery ring part of a stator core. Therefore, it is possible to suppress damage to the connection portion when an external force to the outer side in the radial direction of the rotor acts on the connector housing.
　本発明において、ステータは、絶縁部材とコネクタハウジングとを繋ぐ接続部を備え、接続部には、導線を第２端子部へ案内する導線ガイド部が形成されていることが好ましい。このように構成すると、駆動用コイルの引き出し線の引き回し作業をより容易に行うことが可能になる。 In the present invention, the stator preferably includes a connecting portion that connects the insulating member and the connector housing, and the connecting portion is preferably formed with a conducting wire guide portion that guides the conducting wire to the second terminal portion. If comprised in this way, it will become possible to perform the drawing-out operation | work of the lead wire of a drive coil more easily.
　本発明において、ステータは、絶縁部材とコネクタハウジングとを繋ぐ接続部を備え、絶縁部材とコネクタハウジングと接続部とは一体で形成され、接続部には、軸方向で接続部を貫通するとともに、第２端子部の第２方向側部分が配置される貫通穴が形成されていることが好ましい。コネクタハウジングおよび接続部と、絶縁部材とが別体で形成されて、コネクタハウジングおよび接続部が絶縁部材に固定されている場合には、絶縁部材からコネクタハウジングが外れるおそれがあるが、このように構成すると、絶縁部材からのコネクタハウジングの外れを防止することが可能になる。また、このように構成すると、絶縁部材とコネクタハウジングと接続部とが一体で形成されているため、ステータの組立前の部品の管理が容易になる。 In the present invention, the stator includes a connecting portion that connects the insulating member and the connector housing, and the insulating member, the connector housing, and the connecting portion are integrally formed, and the connecting portion penetrates the connecting portion in the axial direction. It is preferable that a through hole in which the second direction side portion of the second terminal portion is disposed is formed. When the connector housing and the connection portion are formed separately from the insulating member and the connector housing and the connection portion are fixed to the insulating member, the connector housing may be detached from the insulating member. If comprised, it will become possible to prevent the connector housing from coming off from the insulating member. In addition, since the insulating member, the connector housing, and the connection portion are formed integrally with each other, the management of the parts before the assembly of the stator is facilitated.
　本発明において、ステータコアは、ステータコアの外周面を構成する環状の外周環部を備え、複数の突極部は、外周環部から径方向の内側に向かって突出するとともにロータの周方向において一定の間隔で配置され、外周環部は、複数の突極部と同じ数の外周部によって構成され、複数の外周部は、周方向に配列されるとともに、複数の外周部のそれぞれに、１個の突極部が繋がっており、周方向における外周部の境界の１箇所には、つなぎ目が形成され、周方向における外周部の境界のうちのつなぎ目が形成される１箇所を除いた残りの箇所には、周方向における外周部の外側端同士を繋ぐコア接続部が形成され、ステータは、絶縁部材とコネクタハウジングとを繋ぐ接続部を備え、コネクタハウジングと接続部とは一体で形成され、接続部には、絶縁部材に係合可能なコネクタ側係合部が形成され、複数の絶縁部材のそれぞれに、コネクタ側係合部が係合可能な絶縁部材側係合部が形成されていることが好ましい。 In the present invention, the stator core includes an annular outer peripheral ring portion that constitutes the outer peripheral surface of the stator core, and the plurality of salient pole portions protrude radially inward from the outer peripheral ring portion and are constant in the circumferential direction of the rotor. The outer peripheral ring portions are configured by the same number of outer peripheral portions as the plurality of salient pole portions, the plurality of outer peripheral portions are arranged in the circumferential direction, and each of the plurality of outer peripheral portions has one piece. The salient poles are connected, and a seam is formed at one of the boundaries of the outer peripheral part in the circumferential direction, and the remaining part except for one part of the boundary of the outer peripheral part in the circumferential direction is formed. Is formed with a core connecting portion that connects the outer ends of the outer peripheral portion in the circumferential direction, and the stator includes a connecting portion that connects the insulating member and the connector housing, and the connector housing and the connecting portion are integrally formed, The connector is formed with a connector side engaging portion that can be engaged with the insulating member, and each of the plurality of insulating members is formed with an insulating member side engaging portion that can be engaged with the connector side engaging portion. Is preferred.
　ステータコアが、周方向における外周部の境界の１箇所につなぎ目が形成されるとともに、周方向における外周部の境界のうちのつなぎ目が形成される１箇所を除いた残りの箇所に、周方向における外周部の外側端同士を繋ぐコア接続部が形成されたいわゆるカーリングコアである場合であって、環状の外周環部が形成される前の帯状のコアの状態で絶縁部材を介して駆動用コイルが突極部に巻回される場合、モータの仕様等に応じて、ステータコアに対するコネクタハウジングの取付位置を変える必要が生じる場合があるが、このように構成すると、接続部に、絶縁部材に係合可能なコネクタ側係合部が形成され、かつ、複数の絶縁部材のそれぞれに、コネクタ側係合部が係合可能な絶縁部材側係合部が形成されているため、絶縁部材の形状を変更しなくても、ステータコアに対するコネクタハウジングの取付位置を変更することが可能になる。したがって、ステータコアに対するコネクタハウジングの取付位置を容易に変更することが可能になる。 The stator core is formed with a joint at one place on the boundary of the outer peripheral part in the circumferential direction, and the outer circumference in the circumferential direction is left at the remaining part except for one part of the boundary of the outer peripheral part in the circumferential direction. In the case of a so-called curling core in which a core connecting part that connects the outer ends of the part is formed, the driving coil is provided via an insulating member in the state of a band-shaped core before the annular outer peripheral ring part is formed. When wound around the salient pole part, it may be necessary to change the mounting position of the connector housing with respect to the stator core according to the motor specifications, etc., but if configured in this way, the connecting part is engaged with the insulating member. The connector-side engaging portion is formed, and the insulating member-side engaging portion that can be engaged with the connector-side engaging portion is formed in each of the plurality of insulating members. Without changing the Jo, it is possible to change the mounting position of the connector housing relative to the stator core. Therefore, it is possible to easily change the mounting position of the connector housing with respect to the stator core.
　本発明において、絶縁部材側係合部は、絶縁部材の第１方向側へ突出するとともに周方向において間隔をあけた状態で配置される２個の突起部であり、コネクタ側係合部は、２個の突起部のそれぞれが嵌る２個の凹部であることが好ましい。このように構成すると、２個の突起部と２個の凹部とを用いた比較的簡易な構成で、絶縁部材に接続部を取り付けることが可能になる。 In the present invention, the insulating member side engaging portion is two projections that protrude in the first direction side of the insulating member and are spaced apart in the circumferential direction, and the connector side engaging portion is It is preferable that there are two recesses into which each of the two protrusions fits. If comprised in this way, it will become possible to attach a connection part to an insulating member by the comparatively simple structure using two protrusion parts and two recessed parts.
　本発明のモータは、ロータの回転軸に固定される羽根車を備えるポンプ装置に用いることができる。このポンプ装置では、モータのコストを低減することが可能になるとともにモータを小型化することが可能になる。また、このポンプ装置では、駆動用コイルの引き出し線の引き回し作業が容易になるとともに、端子ピンへの導線の端部の半田付け作業を容易に行うことが可能になる。 The motor of the present invention can be used for a pump device including an impeller fixed to a rotating shaft of a rotor. In this pump device, the cost of the motor can be reduced and the motor can be miniaturized. Further, in this pump device, it is possible to easily perform the operation of drawing out the lead wire of the driving coil and to easily solder the end portion of the conductive wire to the terminal pin.
　以上のように、本発明では、モータのコストを低減することが可能になるとともにモータを小型化することが可能になる。 As described above, according to the present invention, the cost of the motor can be reduced and the motor can be miniaturized.
本発明の実施の形態にかかるモータが組み込まれるポンプ装置の断面図である。It is sectional drawing of the pump apparatus with which the motor concerning embodiment of this invention is integrated. 図１に示す樹脂封止部材付きのステータの斜視図である。It is a perspective view of the stator with a resin sealing member shown in FIG. 図１に示すステータの斜視図である。It is a perspective view of the stator shown in FIG. 図１に示すステータコアの構成を説明するための図である。It is a figure for demonstrating the structure of the stator core shown in FIG. 図３に示すコネクタ付きのインシュレータの一部の斜視図である。It is a perspective view of a part of an insulator with a connector shown in FIG. 図５に示すコネクタ付きのインシュレータの一部を異なる方向から示す斜視図である。It is a perspective view which shows a part of insulator with a connector shown in FIG. 5 from a different direction. 図３に示すコネクタ付きのインシュレータの断面図である。It is sectional drawing of the insulator with a connector shown in FIG. 本発明の他の実施の形態にかかるコネクタ付きのインシュレータの断面図である。It is sectional drawing of the insulator with a connector concerning other embodiment of this invention. 本発明の他の実施の形態にかかるコネクタ付きのインシュレータの斜視図である。It is a perspective view of the insulator with a connector concerning other embodiments of the present invention. 図９に示すコネクタとインシュレータとを分解した状態の斜視図である。It is a perspective view of the state which decomposed | disassembled the connector and insulator shown in FIG.
　以下、図面を参照しながら、本発明の実施の形態を説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
　（ポンプ装置の全体構成）
　図１は、本発明の実施の形態にかかるモータ３が組み込まれるポンプ装置１の断面図である。図２は、図１に示す樹脂封止部材１２付きのステータ６の斜視図である。図３は、図１に示すステータ６の斜視図である。図４は、図１に示すステータコア２４の構成を説明するための図である。以下の説明では、図１等のＺ１方向側を「上」側とし、その反対側である図１等のＺ２方向側を「下」側とする。 (Overall configuration of pump device)
FIG. 1 is a cross-sectional view of a pump device 1 in which a motor 3 according to an embodiment of the present invention is incorporated. FIG. 2 is a perspective view of the stator 6 with the resin sealing member 12 shown in FIG. FIG. 3 is a perspective view of the stator 6 shown in FIG. FIG. 4 is a diagram for explaining the configuration of the stator core 24 shown in FIG. In the following description, the Z1 direction side in FIG. 1 or the like is referred to as the “upper” side, and the Z2 direction side in FIG.
　本形態のモータ３は、ポンプ装置１に組み込まれて使用される。このポンプ装置１は、モータ３の動力で回転する羽根車２を備えている。また、モータ３は、ＤＣブラシレスモータであり、ロータ５とステータ６とを備えている。本形態のモータ３は、三相ブラシレスモータである。ロータ５は、ロータ５の軸方向と上下方向とが一致するように配置されている。すなわち、上下方向は、ロータ５の軸方向となっている。 The motor 3 of this embodiment is used by being incorporated in the pump device 1. The pump device 1 includes an impeller 2 that is rotated by the power of a motor 3. The motor 3 is a DC brushless motor and includes a rotor 5 and a stator 6. The motor 3 of this embodiment is a three-phase brushless motor. The rotor 5 is disposed so that the axial direction of the rotor 5 coincides with the vertical direction. That is, the vertical direction is the axial direction of the rotor 5.
　本形態の上方向（Ｚ１方向）は、ロータ５の軸方向の一方である第１方向となっており、下方向（Ｚ２方向）は、第１方向の反対方向（すなわち、ロータ５の軸方向の他方）である第２方向となっている。なお、以下の説明では、ロータ５の径方向を「径方向」とし、ロータ５の周方向（円周方向）を「周方向」とする。 The upward direction (Z1 direction) of this embodiment is a first direction that is one of the axial directions of the rotor 5, and the downward direction (Z2 direction) is the opposite direction of the first direction (that is, the axial direction of the rotor 5). The other direction is the second direction. In the following description, the radial direction of the rotor 5 is referred to as “radial direction”, and the circumferential direction (circumferential direction) of the rotor 5 is referred to as “circumferential direction”.
　羽根車２、ロータ５およびステータ６は、後述のコネクタハウジング２７の上端側部分を除いて、ポンプケースの内部に配置されている。このポンプケースは、モータ３の一部を構成するハウジング８と、ハウジング８の下端部に固定されるケース体９とから構成されている。ケース体９には、流体の吸入口９ａと、流体の吐出口９ｂとが形成されている。ハウジング８とケース体９とに囲まれた領域は、吸入口９ａから吸入された流体が吐出口９ｂに向かって通過するポンプ室１０となっている。ハウジング８とケース体９との接合部分には、ポンプ室１０の密閉性を確保するためのシール部材（図示省略）が配置されている。ハウジング８は、ステータ６を覆う樹脂製の樹脂封止部材１２と、樹脂封止部材１２の下端側に固定されるカバー部材１３とを備えている。 The impeller 2, the rotor 5, and the stator 6 are disposed inside the pump case except for an upper end side portion of a connector housing 27 described later. The pump case includes a housing 8 that constitutes a part of the motor 3 and a case body 9 that is fixed to the lower end of the housing 8. The case body 9 is formed with a fluid suction port 9a and a fluid discharge port 9b. A region surrounded by the housing 8 and the case body 9 is a pump chamber 10 through which the fluid sucked from the suction port 9a passes toward the discharge port 9b. A sealing member (not shown) for securing the sealing property of the pump chamber 10 is disposed at a joint portion between the housing 8 and the case body 9. The housing 8 includes a resin-made resin sealing member 12 that covers the stator 6 and a cover member 13 that is fixed to the lower end side of the resin sealing member 12.
　ロータ５は、回転軸１４と、駆動用磁石１５と、スリーブ１６とを備えている。回転軸１４は、回転軸１４の軸方向と上下方向とが一致するように配置されている。スリーブ１６は、上下方向の両端に鍔部を有する鍔付きの略円筒状に形成されている。このスリーブ１６は、回転軸１４の上端側部分の外周面に固定されている。駆動用磁石１５は、スリーブ１６の外周面に固定されている。また、駆動用磁石１５は、上下方向の両端に形成されるスリーブ１６の鍔部の間に配置されている。駆動用磁石１５の外周面には、Ｎ極とＳ極とが周方向において交互に着磁されている。 The rotor 5 includes a rotating shaft 14, a driving magnet 15, and a sleeve 16. The rotating shaft 14 is disposed so that the axial direction of the rotating shaft 14 coincides with the vertical direction. The sleeve 16 is formed in a substantially cylindrical shape with a hook having flanges at both ends in the vertical direction. The sleeve 16 is fixed to the outer peripheral surface of the upper end side portion of the rotating shaft 14. The drive magnet 15 is fixed to the outer peripheral surface of the sleeve 16. The drive magnet 15 is disposed between the flanges of the sleeve 16 formed at both ends in the vertical direction. N poles and S poles are alternately magnetized in the circumferential direction on the outer circumferential surface of the drive magnet 15.
　回転軸１４の下端部には、羽根車２が固定されている。羽根車２は、ポンプ室１０の内部に配置されている。回転軸１４は、スリーブ１６を上下方向で挟むように配置される２個の軸受１７、１８に回転可能に支持されている。軸受１７、１８は、すべり軸受であり、鍔付きの円筒状に形成されている。スリーブ１６の下側に配置される軸受１７は、カバー部材１３に固定され、スリーブ１６の上側に配置される軸受１８は、樹脂封止部材１２に固定されている。すなわち、回転軸１４は、軸受１７を介してカバー部材１３に回転可能に支持されるとともに、軸受１８を介して樹脂封止部材１２に回転可能に支持されている。 The impeller 2 is fixed to the lower end of the rotating shaft 14. The impeller 2 is disposed inside the pump chamber 10. The rotary shaft 14 is rotatably supported by two bearings 17 and 18 arranged so as to sandwich the sleeve 16 in the vertical direction. The bearings 17 and 18 are sliding bearings and are formed in a cylindrical shape with a flange. The bearing 17 disposed below the sleeve 16 is fixed to the cover member 13, and the bearing 18 disposed above the sleeve 16 is fixed to the resin sealing member 12. That is, the rotating shaft 14 is rotatably supported by the cover member 13 via the bearing 17 and is rotatably supported by the resin sealing member 12 via the bearing 18.
　軸受１７は、軸受１７の鍔部が上側に配置された状態でカバー部材１３に固定され、軸受１８は、軸受１８の鍔部が下側に配置された状態で樹脂封止部材１２に固定されている。スリーブ１６の下端側には、軸受１７の鍔部が接触可能な円環状の軸受板１９が固定されている。スリーブ１６の上端側には、軸受１８の鍔部が接触可能な円環状の軸受板２０が固定されている。本形態では、軸受１７、１８がロータ５のラジアル軸受として機能し、軸受１７、１８および軸受板１９、２０がロータ５のスラスト軸受として機能している。また、軸受１７の下側には、円環状のシール部材２１が配置されている。シール部材２１は、カバー部材１３に固定されている。シール部材２１の内周面は、回転軸１４の外周面に接触している。 The bearing 17 is fixed to the cover member 13 with the flange portion of the bearing 17 disposed on the upper side, and the bearing 18 is fixed to the resin sealing member 12 with the flange portion of the bearing 18 disposed on the lower side. ing. An annular bearing plate 19 with which the flange portion of the bearing 17 can contact is fixed to the lower end side of the sleeve 16. An annular bearing plate 20 that can contact the flange of the bearing 18 is fixed to the upper end side of the sleeve 16. In this embodiment, the bearings 17 and 18 function as radial bearings of the rotor 5, and the bearings 17 and 18 and the bearing plates 19 and 20 function as thrust bearings of the rotor 5. An annular seal member 21 is disposed below the bearing 17. The seal member 21 is fixed to the cover member 13. The inner peripheral surface of the seal member 21 is in contact with the outer peripheral surface of the rotating shaft 14.
　ステータ６は、全体として筒状に形成されている。具体的には、ステータ６は、略円筒状に形成されている。このステータ６は、ステータ６の軸方向と上下方向とが一致するように配置されている。また、ステータ６は、ロータ５の外周側に配置されている。ステータ６は、複数の駆動用コイル２３と、ステータコア２４と、複数の絶縁部材としての複数のインシュレータ２５と、複数の端子ピン２６と、複数の端子ピン２６を保持するコネクタハウジング２７と、インシュレータ２５とコネクタハウジング２７とを繋ぐ接続部２８とを備えている。 The stator 6 is formed in a cylindrical shape as a whole. Specifically, the stator 6 is formed in a substantially cylindrical shape. The stator 6 is disposed so that the axial direction of the stator 6 coincides with the vertical direction. The stator 6 is disposed on the outer peripheral side of the rotor 5. The stator 6 includes a plurality of drive coils 23, a stator core 24, a plurality of insulators 25 as a plurality of insulating members, a plurality of terminal pins 26, a connector housing 27 that holds the plurality of terminal pins 26, and the insulator 25. And a connector 28 that connects the connector housing 27 to each other.
　ステータコア２４は、磁性材料からなる薄い磁性板が積層されて形成された積層コアである。このステータコア２４は、環状に形成される外周環部２４ａと、外周環部２４ａから径方向の内側に向かって突出する複数の突極部２４ｂとを備えている。本形態のステータコア２４は、９個の突極部２４ｂを備えている。９個の突極部２４ｂは、等角度ピッチで形成されており、周方向において一定の間隔で配置されている。なお、ステータコア２４が有する突極部２４ｂの数は、９個以外の数であっても良い。 The stator core 24 is a laminated core formed by laminating thin magnetic plates made of a magnetic material. The stator core 24 includes an outer peripheral ring portion 24a formed in an annular shape and a plurality of salient pole portions 24b protruding from the outer peripheral ring portion 24a toward the inner side in the radial direction. The stator core 24 of this embodiment includes nine salient pole portions 24b. The nine salient pole portions 24b are formed at an equiangular pitch, and are arranged at regular intervals in the circumferential direction. Note that the number of salient pole portions 24b included in the stator core 24 may be other than nine.
　外周環部２４ａは、円環状に形成されており、上下方向から見たときの外周環部２４ａの外周面の形状は、円形状となっている。外周環部２４ａの外周面は、ステータコア２４の外周面を構成している。外周環部２４ａの上端面および下端面は、上下方向に直交する平面となっている。また、外周環部２４ａは、周方向に配列される９個の外周部２４ｃによって構成されている。すなわち、外周環部２４ａは、突極部２４ｂと同じ数の外周部２４ｃによって構成されている。 The outer peripheral ring portion 24a is formed in an annular shape, and the shape of the outer peripheral surface of the outer peripheral ring portion 24a when viewed from the vertical direction is a circular shape. The outer peripheral surface of the outer peripheral ring portion 24 a constitutes the outer peripheral surface of the stator core 24. The upper end surface and the lower end surface of the outer peripheral ring portion 24a are planes orthogonal to the vertical direction. Moreover, the outer periphery ring part 24a is comprised by the nine outer peripheral parts 24c arranged in the circumferential direction. That is, the outer peripheral ring portion 24a is configured by the same number of outer peripheral portions 24c as the salient pole portions 24b.
　突極部２４ｂは、周方向における外周部２４ｃの中心に形成されている。すなわち、９個の外周部２４ｃのそれぞれには、１個の突極部２４ｂが繋がっている。突極部２４ｂの先端部（径方向の内側端部）は、周方向の両側に向かって伸びる略円弧状に形成されている。突極部２４ｂの先端面は、駆動用磁石１５の外周面と対向している。 The salient pole portion 24b is formed at the center of the outer peripheral portion 24c in the circumferential direction. That is, one salient pole portion 24b is connected to each of the nine outer peripheral portions 24c. A tip end portion (a radially inner end portion) of the salient pole portion 24b is formed in a substantially arc shape extending toward both sides in the circumferential direction. The tip surface of the salient pole portion 24 b faces the outer peripheral surface of the drive magnet 15.
　また、ステータコア２４は、直線状に繋がる９個の外周部２４ｃによって構成される帯状コア部２４ｄ（図４（Ａ）参照）を、図４に示すように、外周部２４ｃと外周部２４ｃとの境界で折り曲げてその端部同士を繋ぐことで形成されるカーリングコアである。すなわち、ステータコア２４は、帯状コア部２４ｄと、帯状コア部２４ｄから帯状コア部２４ｄの長手方向に直交する方向へ突出する９個の突極部２４ｂとから構成されるコア原体を折り曲げるとともにその端部同士を繋ぐことで、環状に形成されている。 Further, the stator core 24 includes a belt-like core portion 24d (see FIG. 4A) constituted by nine outer peripheral portions 24c connected in a straight line, as shown in FIG. 4, between the outer peripheral portion 24c and the outer peripheral portion 24c. It is a curling core formed by bending at the boundary and connecting the ends. That is, the stator core 24 bends a core core composed of a strip-shaped core portion 24d and nine salient pole portions 24b that project from the strip-shaped core portion 24d in a direction perpendicular to the longitudinal direction of the strip-shaped core portion 24d. It is formed in an annular shape by connecting the ends.
　そのため、図４（Ｂ）に示すように、周方向における９箇所の外周部２４ｃの境界のうちの１箇所にはつなぎ目２４ｅが形成されている。本形態では、つなぎ目２４ｅにおいて、帯状コア部２４ｄの端部同士が溶接されて互いに固定されており、つなぎ目２４ｅには、溶接跡が形成されている。また、周方向における９箇所の外周部２４ｃの境界のうちのつなぎ目２４ｅが形成された１箇所を除いた残りの８箇所の外周部２４ｃの境界には、周方向における外周部２４ｃの外側端同士を繋ぐコア接続部２４ｆが形成されている。 Therefore, as shown in FIG. 4B, a joint 24e is formed at one of the boundaries of the nine outer peripheral portions 24c in the circumferential direction. In this embodiment, the end portions of the band-shaped core portion 24d are welded and fixed to each other at the joint 24e, and a weld mark is formed at the joint 24e. In addition, the outer ends of the outer peripheral portion 24c in the circumferential direction are adjacent to the boundaries of the remaining eight outer peripheral portions 24c except for one portion where the joint 24e is formed among the boundaries of the nine outer peripheral portions 24c in the circumferential direction. A core connection portion 24f is formed to connect the two.
　インシュレータ２５は、樹脂等の絶縁性材料で形成されている。このインシュレータ２５は、突極部２４ｂごとに取り付けられており、ステータ６は、９個のインシュレータ２５を備えている。また、インシュレータ２５は、両端に鍔部を有する鍔付きの筒状に形成されており、筒状に形成されるインシュレータ２５の軸方向とステータ６の径方向とが一致するように突極部２４ｂに取り付けられている。 The insulator 25 is made of an insulating material such as resin. The insulator 25 is attached to each salient pole portion 24b, and the stator 6 includes nine insulators 25. The insulator 25 is formed in a tubular shape with a flange having flanges at both ends, and the salient pole portion 24b so that the axial direction of the insulator 25 formed in the tubular shape matches the radial direction of the stator 6. Is attached.
　インシュレータ２５は、突極部２４ｂを覆う第１覆部２５ａと、外周環部２４ａの内周面の一部および外周環部２４ａの上下の両端面の一部を覆う第２覆部２５ｂとを備えている。第２覆部２５ｂは、外周環部２４ａの内周面の一部を径方向の内側から覆っている。また、第２覆部２５ｂは、外周環部２４ａの上端面の一部を上側から覆うとともに、外周環部２４ａの下端面の一部を下側から覆っている。 The insulator 25 includes a first cover portion 25a that covers the salient pole portion 24b, and a second cover portion 25b that covers a part of the inner peripheral surface of the outer peripheral ring portion 24a and a part of both upper and lower end surfaces of the outer peripheral ring portion 24a. I have. The second cover portion 25b covers a part of the inner peripheral surface of the outer peripheral ring portion 24a from the inside in the radial direction. The second cover portion 25b covers a part of the upper end surface of the outer peripheral ring portion 24a from the upper side and covers a part of the lower end surface of the outer peripheral ring portion 24a from the lower side.
　第２覆部２５ｂの上端面および下端面は、上下方向に直交する平面となっている。第２覆部２５ｂには、第２覆部２５ｂの上端面から上側へ突出する２個の突起部２５ｃと、第２覆部２５ｂの下端面から下側へ突出する２個の突起部２５ｄとが形成されている。すなわち、インシュレータ２５には、インシュレータ２５の上側へ突出する２個の突起部２５ｃと、インシュレータ２５の下側へ突出する２個の突起部２５ｄとが形成されている。２個の突起部２５ｃは、周方向において間隔をあけた状態で配置され、２個の突起部２５ｄは、周方向において間隔をあけた状態で配置されている。上下方向から見たときの突起部２５ｃ、２５ｄの形状は円弧状となっている。 The upper end surface and the lower end surface of the second cover portion 25b are planes orthogonal to the vertical direction. The second cover portion 25b includes two protrusion portions 25c that protrude upward from the upper end surface of the second cover portion 25b, and two protrusion portions 25d that protrude downward from the lower end surface of the second cover portion 25b. Is formed. In other words, the insulator 25 is formed with two protrusions 25 c that protrude upward from the insulator 25 and two protrusions 25 d that protrude downward from the insulator 25. The two protrusions 25c are arranged with a gap in the circumferential direction, and the two protrusions 25d are arranged with a gap in the circumferential direction. The protrusions 25c and 25d have a circular arc shape when viewed from the vertical direction.
　２個の突起部２５ｃのうちの一方の突起部２５ｃは、周方向における第２覆部２５ｂの一端から周方向の他端側に向かって形成され、他方の突起部２５ｃは、周方向における第２覆部２５ｂの他端から周方向の一端側に向かって形成されている。同様に、２個の突起部２５ｄのうちの一方の突起部２５ｄは、周方向における第２覆部２５ｂの一端から周方向の他端側に向かって形成され、他方の突起部２５ｄは、周方向における第２覆部２５ｂの他端から周方向の一端側に向かって形成されている。 One of the two protruding portions 25c is formed from one end of the second cover portion 25b in the circumferential direction toward the other end side in the circumferential direction, and the other protruding portion 25c is the first protruding portion 25c in the circumferential direction. The two cover portions 25b are formed from the other end toward one end side in the circumferential direction. Similarly, one of the two protruding portions 25d is formed from one end of the second cover portion 25b in the circumferential direction toward the other end side in the circumferential direction, and the other protruding portion 25d is formed in the circumferential direction. It is formed from the other end of the second cover portion 25b in the direction toward one end side in the circumferential direction.
　コネクタハウジング２７および接続部２８は、樹脂等の絶縁性材料で形成されている。本形態では、インシュレータ２５とコネクタハウジング２７と接続部２８とが一体で形成されている。具体的には、９個のインシュレータ２５のうちの１個のインシュレータ２５とコネクタハウジング２７と接続部２８とが一体で形成されている。すなわち、９個のインシュレータ２５のうちの１個のインシュレータ２５は、コネクタハウジング２７付きのインシュレータ２５となっている。 The connector housing 27 and the connecting portion 28 are made of an insulating material such as resin. In this embodiment, the insulator 25, the connector housing 27, and the connection portion 28 are integrally formed. Specifically, one of the nine insulators 25, the connector housing 27, and the connection portion 28 are integrally formed. That is, one of the nine insulators 25 is an insulator 25 with a connector housing 27.
　コネクタハウジング２７は、インシュレータ２５の、径方向における外側部分に繋がっている。また、コネクタハウジング２７は、インシュレータ２５の上側部分に繋がっている。具体的には、接続部２８が、インシュレータ２５の上側部分であって、かつ、インシュレータ２５の、径方向の外側部分に繋がっており、コネクタハウジング２７は、接続部２８を介して、インシュレータ２５の上側部分であって、かつ、インシュレータ２５の、径方向の外側部分に繋がっている。 The connector housing 27 is connected to the outer portion of the insulator 25 in the radial direction. Further, the connector housing 27 is connected to the upper portion of the insulator 25. Specifically, the connection portion 28 is an upper portion of the insulator 25 and is connected to a radially outer portion of the insulator 25, and the connector housing 27 is connected to the insulator 25 via the connection portion 28. The upper portion is connected to the radially outer portion of the insulator 25.
　コネクタハウジング２７の上側部分は、インシュレータ２５よりも上側に配置されている。本形態では、コネクタハウジング２７の下端側の一部分を除いたコネクタハウジング２７の大半部分がインシュレータ２５よりも上側に配置されている。コネクタハウジング２７および接続部２８の詳細な構成については後述する。 The upper part of the connector housing 27 is disposed above the insulator 25. In this embodiment, most of the connector housing 27 excluding a part on the lower end side of the connector housing 27 is disposed above the insulator 25. Detailed configurations of the connector housing 27 and the connecting portion 28 will be described later.
　駆動用コイル２３は、アルミニウム合金または銅合金からなる導線２３ａによって構成されている。この駆動用コイル２３は、インシュレータ２５を介して突極部２４ｂに巻回されている。すなわち、９個の駆動用コイル２３のそれぞれが、９個のインシュレータ２５のそれぞれを介して９個の突極部２４ｂのそれぞれに巻回されている。 The driving coil 23 is composed of a conductive wire 23a made of an aluminum alloy or a copper alloy. The driving coil 23 is wound around the salient pole portion 24 b via an insulator 25. That is, each of the nine drive coils 23 is wound around each of the nine salient pole portions 24 b via each of the nine insulators 25.
　上述のように、本形態のモータ３は、三相ブラシレスモータであり、９個の駆動用コイル２３のうちの３個の駆動用コイル２３は、Ｕ相コイルであり、残りの６個の駆動用コイル２３のうちの３個の駆動用コイル２３は、Ｖ相コイルであり、残りの３個の駆動用コイル２３は、Ｗ相コイルである。Ｕ相コイルとＶ相コイルとＷ相コイルとは、周方向においてこの順番に配列されている。 As described above, the motor 3 of this embodiment is a three-phase brushless motor, and the three driving coils 23 of the nine driving coils 23 are U-phase coils, and the remaining six drives. Three of the driving coils 23 are V-phase coils, and the remaining three driving coils 23 are W-phase coils. The U-phase coil, the V-phase coil, and the W-phase coil are arranged in this order in the circumferential direction.
　樹脂封止部材１２は、駆動用コイル２３を完全に覆って、駆動用コイル２３を流体から保護するために設けられている。この樹脂封止部材１２は、略円筒状に形成される筒部１２ａと、略円板状に形成される底部１２ｂとから構成されており、全体として略有底円筒状に形成されている。筒部１２ａは、肉厚の略円筒状に形成されており、筒部１２ａの軸方向と上下方向とが一致するように配置されている。底部１２ｂは、筒部１２ａの上端を塞いでいる。底部１２ｂの下面側の中心には、軸受１８が固定されている。 The resin sealing member 12 is provided to completely cover the drive coil 23 and protect the drive coil 23 from the fluid. The resin sealing member 12 includes a cylindrical portion 12a formed in a substantially cylindrical shape and a bottom portion 12b formed in a substantially disk shape, and is formed in a substantially bottomed cylindrical shape as a whole. The cylinder part 12a is formed in a thick, substantially cylindrical shape, and is arranged such that the axial direction of the cylinder part 12a coincides with the vertical direction. The bottom portion 12b closes the upper end of the cylindrical portion 12a. A bearing 18 is fixed to the center of the bottom surface of the bottom portion 12b.
　また、樹脂封止部材１２は、ＢＭＣ（Ｂｕｌｋ　Ｍｏｌｄｉｎｇ　Ｃｏｍｐｏｕｎｄ）によって形成されている。本形態では、ステータ６を金型内に配置し、この金型内に樹脂材料を注入して硬化させることで樹脂封止部材１２が形成されている。すなわち、樹脂封止部材１２は、ステータ６と一体成形されている。 The resin sealing member 12 is formed of BMC (Bulk Molding Compound). In this embodiment, the resin sealing member 12 is formed by disposing the stator 6 in a mold and injecting a resin material into the mold and curing the resin material. That is, the resin sealing member 12 is integrally formed with the stator 6.
　ステータコア２４の外周環部２４ａの下端面の外周端部分、突極部２４ｂの先端面（径方向の内側面）およびコネクタハウジング２７の上端側部分は、樹脂封止部材１２によって覆われていないが、ステータ６のその他の部分は、樹脂封止部材１２によって覆われている（図１、図２参照）。すなわち、９個の駆動用コイル２３、９個のインシュレータ２５およびステータコア２４の上側および外周側（径方向の外側）は、樹脂封止部材１２によって覆われている。 Although the outer peripheral end portion of the lower end surface of the outer peripheral ring portion 24 a of the stator core 24, the tip end surface (radial inner surface) of the salient pole portion 24 b and the upper end side portion of the connector housing 27 are not covered with the resin sealing member 12. The other parts of the stator 6 are covered with a resin sealing member 12 (see FIGS. 1 and 2). That is, the nine drive coils 23, the nine insulators 25, and the stator core 24 are covered with the resin sealing member 12 on the upper side and the outer peripheral side (outside in the radial direction).
　カバー部材１３は、樹脂封止部材１２と別体で形成された樹脂部品である。このカバー部材１３は、略円筒状に形成される筒部１３ａと、略円板状に形成される底部１３ｂとから構成されており、全体として略有底円筒状に形成されている。カバー部材１３は、樹脂封止部材１２の下端側に固定されている。筒部１３ａは、筒部１３ａの軸方向と上下方向とが一致するように配置されている。筒部１３ａは、樹脂封止部材１２の下端側部分を径方向の外側から覆っている。底部１３ｂは、筒部１３ａの下端を塞いでいる。底部１３ｂの中心には、貫通穴が形成されている。この貫通穴には、軸受１７とシール部材２１とが固定されている。 The cover member 13 is a resin part formed separately from the resin sealing member 12. This cover member 13 is comprised from the cylinder part 13a formed in a substantially cylindrical shape, and the bottom part 13b formed in a substantially disc shape, and is formed in the substantially bottomed cylindrical shape as a whole. The cover member 13 is fixed to the lower end side of the resin sealing member 12. The cylinder part 13a is arrange | positioned so that the axial direction and the up-down direction of the cylinder part 13a may correspond. The cylinder portion 13a covers the lower end portion of the resin sealing member 12 from the outside in the radial direction. The bottom portion 13b closes the lower end of the cylindrical portion 13a. A through hole is formed at the center of the bottom portion 13b. The bearing 17 and the seal member 21 are fixed in the through hole.
　（端子ピン、コネクタハウジングおよび接続部の構成）
　図５は、図３に示すコネクタ３０付きのインシュレータ２５の一部の斜視図である。図６は、図５に示すコネクタ３０付きのインシュレータ２５の一部を異なる方向から示す斜視図である。図７は、図３に示すコネクタ３０付きのインシュレータ２５の断面図である。 (Configuration of terminal pins, connector housing, and connection part)
FIG. 5 is a perspective view of a part of the insulator 25 with the connector 30 shown in FIG. 6 is a perspective view showing a part of the insulator 25 with the connector 30 shown in FIG. 5 from different directions. FIG. 7 is a cross-sectional view of the insulator 25 with the connector 30 shown in FIG.
　上述のように、モータ３は、三相ブラシレスモータであり、ステータ６は、駆動用コイル２３として、３個のＵ相コイルと３個のＶ相コイルと３個のＷ相コイルとを備えている。３個のＵ相コイルは、１本の導線２３ａが３個の突極部２４ｂに順次巻回されることで形成され、３個のＶ相コイルは、１本の導線２３ａが３個の突極部２４ｂに順次巻回されることで形成され、３個のＷ相コイルは、１本の導線２３ａが３個の突極部２４ｂに順次巻回されることで形成されている。 As described above, the motor 3 is a three-phase brushless motor, and the stator 6 includes three U-phase coils, three V-phase coils, and three W-phase coils as the drive coil 23. Yes. The three U-phase coils are formed by sequentially winding one conductive wire 23a around the three salient pole portions 24b, and the three V-phase coils have three conductive wires 23a. The three W-phase coils are formed by being sequentially wound around the pole portions 24b, and the three W-phase coils are formed by sequentially winding one conductive wire 23a around the three salient pole portions 24b.
　ステータ６は、Ｕ相コイルを構成する導線２３ａの一端部が接続される端子ピン２６と、Ｖ相コイルを構成する導線２３ａの一端部が接続される端子ピン２６と、Ｗ相コイルを構成する導線２３ａの一端部が接続される端子ピン２６との３本の端子ピン２６を備えている。本形態では、３本の端子ピン２６とコネクタハウジング２７とによって、駆動用コイル２３に電流を供給するための雌型のコネクタ３０が構成されている。コネクタ３０には、図示を省略する雄型のコネクタが嵌め込まれる。なお、Ｕ相コイルを構成する導線２３ａの他端部と、Ｖ相コイルを構成する導線２３ａの他端部と、Ｗ相コイルを構成する導線２３ａの他端部とは互いに接続されている。 The stator 6 constitutes a W-phase coil, a terminal pin 26 to which one end portion of a conducting wire 23a constituting a U-phase coil is connected, a terminal pin 26 to which one end portion of a conducting wire 23a constituting a V-phase coil is connected. Three terminal pins 26 are provided with a terminal pin 26 to which one end of the conducting wire 23a is connected. In this embodiment, a female connector 30 for supplying a current to the driving coil 23 is constituted by the three terminal pins 26 and the connector housing 27. A male connector (not shown) is fitted into the connector 30. In addition, the other end part of the conducting wire 23a which comprises a U-phase coil, the other end part of the conducting wire 23a which comprises a V-phase coil, and the other end part of the conducting wire 23a which comprises a W-phase coil are mutually connected.
　端子ピン２６は、断面形状が四角状となっている金属線を折り曲げることで形成されている。この端子ピン２６は、コネクタハウジング２７の内部に配置される第１端子部２６ａと、コネクタハウジング２７の外部に配置される第２端子部２６ｂと、第１端子部２６ａと第２端子部２６ｂとを繋ぐ連結部２６ｃとから構成されている。なお、端子ピン２６は、断面形状が円形状となっている金属線を折り曲げることで形成されていても良い。 The terminal pin 26 is formed by bending a metal wire having a square cross-sectional shape. The terminal pin 26 includes a first terminal portion 26a disposed inside the connector housing 27, a second terminal portion 26b disposed outside the connector housing 27, a first terminal portion 26a, and a second terminal portion 26b. It is comprised from the connection part 26c which connects. The terminal pin 26 may be formed by bending a metal wire having a circular cross-sectional shape.
　第１端子部２６ａ、第２端子部２６ｂおよび連結部２６ｃは、直線状に形成されている。第１端子部２６ａと連結部２６ｃとは、互いに直交するように繋がっている。第２端子部２６ｂと連結部２６ｃとは、互いに直交するように繋がっている。第１端子部２６ａおよび第２端子部２６ｂは、連結部２６ｃから同方向へ伸びている。すなわち、第１端子部２６ａと第２端子部２６ｂとは平行に配置されている。また、図７に示すように、端子ピン２６の形状は、略Ｕ形状となっている。 The first terminal portion 26a, the second terminal portion 26b, and the connecting portion 26c are formed in a straight line. The 1st terminal part 26a and the connection part 26c are connected so that it may mutually orthogonally cross. The 2nd terminal part 26b and the connection part 26c are connected so that it may mutually orthogonally cross. The first terminal portion 26a and the second terminal portion 26b extend in the same direction from the connecting portion 26c. That is, the first terminal portion 26a and the second terminal portion 26b are arranged in parallel. Moreover, as shown in FIG. 7, the shape of the terminal pin 26 is substantially U shape.
　直線状に形成される第１端子部２６ａおよび第２端子部２６ｂは、上下方向と平行になるように配置されている。連結部２６ｃは、第１端子部２６ａの下端と第２端子部２６ｂの下端とを繋いでいる。第１端子部２６ａの下端と第２端子部２６ｂの下端とは上下方向において同じ位置に配置されており、直線状に形成される連結部２６ｃは、径方向と略平行になるように配置されている。 The first terminal portion 26a and the second terminal portion 26b formed in a straight line are arranged so as to be parallel to the vertical direction. The connecting portion 26c connects the lower end of the first terminal portion 26a and the lower end of the second terminal portion 26b. The lower end of the first terminal portion 26a and the lower end of the second terminal portion 26b are arranged at the same position in the vertical direction, and the connecting portion 26c formed in a linear shape is arranged so as to be substantially parallel to the radial direction. ing.
　第１端子部２６ａは、連結部２６ｃの径方向の外側端に繋がり、第２端子部２６ｂは、連結部２６ｃの径方向の内側端に繋がっている。第１端子部２６ａの上端は、第２端子部２６ｂの上端よりも上側に配置されている。第２端子部２６ｂは、径方向においてコネクタハウジング２７よりも内側に配置されている。本形態の第２端子部２６ｂは、直線状に形成され第１端子部２６ａと平行に配置される直線部となっている。なお、本形態では、連結部２６ｃの上側面および下側面が上下方向と直交するように、断面形状が四角状となっている金属線が略Ｕ形状に折り曲げられて端子ピン２６が形成されるとともに、端子ピン２６がコネクタハウジング２７に保持されている。 The first terminal portion 26a is connected to the radially outer end of the connecting portion 26c, and the second terminal portion 26b is connected to the radially inner end of the connecting portion 26c. The upper end of the first terminal portion 26a is disposed above the upper end of the second terminal portion 26b. The second terminal portion 26b is disposed inside the connector housing 27 in the radial direction. The 2nd terminal part 26b of this form is a linear part formed in the shape of a straight line, and arranged in parallel with the 1st terminal part 26a. In the present embodiment, the terminal pin 26 is formed by bending a metal wire having a square cross-sectional shape into a substantially U shape so that the upper side surface and the lower side surface of the connecting portion 26c are orthogonal to the vertical direction. At the same time, the terminal pin 26 is held by the connector housing 27.
　上述のように、インシュレータ２５とコネクタハウジング２７と接続部２８とは一体で形成されている。本形態では、内部にステータコア２４が配置された金型の中に樹脂を充填させるインサート成形によって、インシュレータ２５とコネクタハウジング２７と接続部２８とが一体で成形されており、インシュレータ２５、コネクタハウジング２７および接続部２８は、ステータコア２４と一体化されている。 As described above, the insulator 25, the connector housing 27, and the connecting portion 28 are integrally formed. In this embodiment, the insulator 25, the connector housing 27, and the connection portion 28 are integrally formed by insert molding in which a mold is filled with a resin in which the stator core 24 is disposed. The connecting portion 28 is integrated with the stator core 24.
　なお、本形態では、帯状コア部２４ｄと９個の突極部２４ｂとから構成されるコア原体に対してインサート成形を行う。また、インサート成形後に、駆動用コイル２３を、インシュレータ２５を介して突極部２４ｂに巻回してから、帯状コア部２４ｄを、外周部２４ｃと外周部２４ｃとの境界で折り曲げて、帯状コア部２４ｄの端部同士を繋ぐ。 In this embodiment, insert molding is performed on the core core composed of the strip-shaped core portion 24d and the nine salient pole portions 24b. In addition, after the insert molding, the driving coil 23 is wound around the salient pole portion 24b via the insulator 25, and then the belt-shaped core portion 24d is bent at the boundary between the outer peripheral portion 24c and the outer peripheral portion 24c. Connect the ends of 24d.
　コネクタハウジング２７は、略直方体の箱状に形成されている。コネクタハウジング２７の上端は、開口している。すなわち、コネクタハウジング２７は、上面が開口する略直方体の箱状に形成されている。コネクタハウジング２７の下端面は、上下方向と直交し、径方向におけるコネクタハウジング２７の内側面および外側面は、径方向と直交している。コネクタハウジング２７の上端側の内部には、コネクタ３０に差し込まれる雄型のコネクタの配置空間２７ａが形成されており、雄型のコネクタは、上側からコネクタハウジング２７に差し込まれる。 The connector housing 27 is formed in a substantially rectangular parallelepiped box shape. The upper end of the connector housing 27 is open. That is, the connector housing 27 is formed in a substantially rectangular parallelepiped box shape whose upper surface is open. The lower end surface of the connector housing 27 is orthogonal to the vertical direction, and the inner and outer surfaces of the connector housing 27 in the radial direction are orthogonal to the radial direction. A male connector placement space 27a to be inserted into the connector 30 is formed inside the upper end side of the connector housing 27, and the male connector is inserted into the connector housing 27 from above.
　配置空間２７ａの下側は、コネクタハウジング２７の底部２７ｂとなっている。底部２７ｂには、３本の端子ピン２６の第１端子部２６ａのそれぞれの下端側部分が配置される３個の貫通穴２７ｃが形成されている（図７参照）。貫通穴２７ｃは、上下方向で底部２７ｂを貫通している。また、３個の貫通穴２７ｃは、上下方向と径方向とに直交する方向（以下、この方向を「直交方向」とする。）において互いに間隔をあけた状態で形成されている。すなわち、３本の端子ピン２６は、直交方向において間隔をあけた状態で配列されている。 The lower side of the arrangement space 27 a is a bottom portion 27 b of the connector housing 27. The bottom portion 27b is formed with three through holes 27c in which the respective lower end portions of the first terminal portions 26a of the three terminal pins 26 are disposed (see FIG. 7). The through hole 27c penetrates the bottom portion 27b in the vertical direction. The three through holes 27c are formed in a state in which they are spaced from each other in a direction orthogonal to the vertical direction and the radial direction (hereinafter, this direction is referred to as “orthogonal direction”). That is, the three terminal pins 26 are arranged in a state of being spaced apart in the orthogonal direction.
　底部２７ｂの下面（すなわち、コネクタハウジング２７の下端面）には、連結部２６ｃを案内するガイド部２７ｄが形成されている。具体的には、図６に示すように、底部２７ｂの下面から下側へ突出するとともに、直交方向における連結部２６ｃの両側面のそれぞれが接触する２個の凸部２７ｅが底部２７ｂに形成されており、２個の凸部２７ｅによってガイド部２７ｄが構成されている。ガイド部２７ｄは、上下方向と直交方向とに直交する略径方向に連結部２６ｃを案内している。 A guide portion 27d for guiding the connecting portion 26c is formed on the bottom surface of the bottom portion 27b (that is, the lower end surface of the connector housing 27). Specifically, as shown in FIG. 6, two convex portions 27e that protrude downward from the bottom surface of the bottom portion 27b and that are in contact with both side surfaces of the connecting portion 26c in the orthogonal direction are formed on the bottom portion 27b. A guide portion 27d is constituted by the two convex portions 27e. The guide portion 27d guides the connecting portion 26c in a substantially radial direction orthogonal to the vertical direction and the orthogonal direction.
　連結部２６ｃの上面は、２個の凸部２７ｅの間で底部２７ｂの下面に接触している。連結部２６ｃの下面は、ステータコア２４の上端面よりも上側に配置されている（図７参照）。なお、本形態では、底部２７ｂの下面から上側に向かって窪む肉盗み部２７ｆが底部２７ｂに形成されており、凸部２７ｅは、肉盗み部２７ｆによって、上下方向と直交方向とに直交する略径方向において分断されている。 The upper surface of the connecting portion 26c is in contact with the lower surface of the bottom portion 27b between the two convex portions 27e. The lower surface of the connecting portion 26c is disposed above the upper end surface of the stator core 24 (see FIG. 7). In this embodiment, a meat stealing portion 27f that is recessed upward from the lower surface of the bottom portion 27b is formed on the bottom portion 27b, and the convex portion 27e is orthogonal to the vertical direction and the orthogonal direction by the meat stealing portion 27f. It is divided in a substantially radial direction.
　コネクタハウジング２７の径方向の内側面には、径方向の内側に向かって突出する凸部２７ｇが形成されている。凸部２７ｇは、直交方向に細長い直方体状に形成されている。また、凸部２７ｇは、コネクタハウジング２７の径方向の内側面の、上下方向の略中心位置に形成されている。凸部２７ｇの、径方向の内側面は、径方向に直交する平面となっている。凸部２７ｇには、３個の第２端子部２６ｂの上端側部分が接触している。具体的には、第２端子部２６ｂの上端側部分の、径方向の外側面が、凸部２７ｇの、径方向の内側面に接触している。 A convex portion 27g that protrudes inward in the radial direction is formed on the inner side surface of the connector housing 27 in the radial direction. The convex portion 27g is formed in a rectangular parallelepiped shape elongated in the orthogonal direction. The convex portion 27g is formed at a substantially central position in the vertical direction on the inner surface in the radial direction of the connector housing 27. The radially inner side surface of the convex portion 27g is a plane perpendicular to the radial direction. The upper end portions of the three second terminal portions 26b are in contact with the convex portion 27g. Specifically, the radially outer surface of the upper end portion of the second terminal portion 26b is in contact with the radially inner surface of the convex portion 27g.
　端子ピン２６は、コネクタハウジング２７の下側からコネクタハウジング２７に取り付けられる。具体的には、第１端子部２６ａを下側から貫通穴２７ｃに挿通することで、端子ピン２６がコネクタハウジング２７に取り付けられる。図７に示すように、凸部２７ｇよりも下側では、コネクタハウジング２７の径方向の内側面と第２端子部２６ｂとの間に隙間が形成されており、コネクタハウジング２７の径方向の内側面と第２端子部２６ｂとが離れている。 The terminal pin 26 is attached to the connector housing 27 from the lower side of the connector housing 27. Specifically, the terminal pin 26 is attached to the connector housing 27 by inserting the first terminal portion 26 a into the through hole 27 c from below. As shown in FIG. 7, a gap is formed between the radially inner side surface of the connector housing 27 and the second terminal portion 26b below the convex portion 27g. The side surface is separated from the second terminal portion 26b.
　接続部２８は、上述のように、インシュレータ２５とコネクタハウジング２７とを繋いでいる。具体的には、接続部２８は、インシュレータ２５の上端側部分とコネクタハウジング２７の下端側部分とを繋いでおり、コネクタハウジング２７の上端側部分は、接続部２８よりも上側に配置されている。また、接続部２８は、コネクタハウジング２７よりも径方向の内側に配置されている。接続部２８は、インシュレータ２５の第２覆部２５ｂに繋がっている。具体的には、接続部２８は、第２覆部２５ｂの上側部分であって、かつ、第２覆部２５ｂの、径方向における外側部分に繋がっている。 The connecting portion 28 connects the insulator 25 and the connector housing 27 as described above. Specifically, the connection portion 28 connects the upper end side portion of the insulator 25 and the lower end side portion of the connector housing 27, and the upper end side portion of the connector housing 27 is disposed above the connection portion 28. . Further, the connection portion 28 is disposed on the inner side in the radial direction than the connector housing 27. The connection portion 28 is connected to the second cover portion 25b of the insulator 25. Specifically, the connection portion 28 is an upper portion of the second cover portion 25b and is connected to an outer portion of the second cover portion 25b in the radial direction.
　接続部２８の径方向の内側端部分の下面は、外周環部２４ａの上端面の径方向の外側部分に接触する接触面２８ａとなっている（図７参照）。すなわち、接続部２８は、外周環部２４ａの上端面に接触している。接触面２８ａは、外周環部２４ａの上端面の径方向の内側部分に接触する第２覆部２５ｂの接触面に繋がるとともに、この接触面と同一平面上に配置されている。 The lower surface of the radially inner end portion of the connecting portion 28 is a contact surface 28a that contacts the radially outer portion of the upper end surface of the outer peripheral ring portion 24a (see FIG. 7). That is, the connection part 28 is in contact with the upper end surface of the outer peripheral ring part 24a. The contact surface 28a is connected to the contact surface of the second cover portion 25b that contacts the radially inner portion of the upper end surface of the outer peripheral ring portion 24a and is disposed on the same plane as the contact surface.
　また、接続部２８は、外周環部２４ａの外周面の上側部分に接触している。すなわち、接続部２８には、外周環部２４ａの外周面の上側部分に接触する接触面２８ｂが形成されている（図７参照）。接触面２８ｂは、上下方向から見たときの形状が円弧状をなす曲面となっている。この接触面２８ｂは、接触面２８ａの径方向の外側端に繋がっている。また、接触面２８ｂは、接触面２８ａの径方向の外側端から下側に向かって形成されている。 Moreover, the connection part 28 is contacting the upper part of the outer peripheral surface of the outer periphery ring part 24a. That is, the contact portion 28b that contacts the upper portion of the outer peripheral surface of the outer peripheral ring portion 24a is formed on the connection portion 28 (see FIG. 7). The contact surface 28b is a curved surface having a circular arc shape when viewed from above and below. The contact surface 28b is connected to the radially outer end of the contact surface 28a. Further, the contact surface 28b is formed downward from the radially outer end of the contact surface 28a.
　接続部２８には、上下方向で接続部２８を貫通する貫通穴２８ｃが形成されている。上下方向から見たときの貫通穴２８ｃの形状は、直交方向を長手方向とする長方形状となっている。コネクタハウジング２７の径方向の内側面の下側部分は、貫通穴２８ｃの、径方向の外側の側面となっている。貫通穴２８ｃは、コネクタハウジング２７の凸部２７ｇより下側に形成されている。直交方向における貫通穴２８ｃの幅は、凸部２７ｇの幅よりも広くなっている。また、貫通穴２８ｃの、径方向の内側の側面は、凸部２７ｇの、径方向の内側面より径方向の内側に配置されている。貫通穴２８ｃには、第２端子部２６ｂの下端側部分が配置されている。 The through-hole 28c which penetrates the connection part 28 in the up-down direction is formed in the connection part 28. The shape of the through hole 28c when viewed from the vertical direction is a rectangular shape with the orthogonal direction as the longitudinal direction. The lower part of the radially inner side surface of the connector housing 27 is the radially outer side surface of the through hole 28c. The through hole 28 c is formed below the convex portion 27 g of the connector housing 27. The width of the through hole 28c in the orthogonal direction is wider than the width of the convex portion 27g. Further, the inner side surface in the radial direction of the through hole 28c is arranged on the inner side in the radial direction from the inner side surface in the radial direction of the convex portion 27g. A lower end side portion of the second terminal portion 26b is disposed in the through hole 28c.
　接続部２８の上面の貫通穴２８ｃの前側部分には、上側に向かって突出する２個の突起部２８ｄが形成されている。２個の突起部２８ｄは、直交方向において間隔をあけた状態で形成されている。また、２個の突起部２８ｄのうちの一方の突起部２８ｄは、直交方向における接続部２８の中心部から直交方向の一方側に向かって形成され、他方の突起部２８ｄは、直交方向における接続部２８の中心部から直交方向の他方側に向かって形成されている。 Two projecting portions 28d projecting upward are formed on the front portion of the through hole 28c on the upper surface of the connecting portion 28. The two projecting portions 28d are formed in a state of being spaced apart in the orthogonal direction. In addition, one of the two protrusions 28d is formed from the central part of the connection part 28 in the orthogonal direction toward one side in the orthogonal direction, and the other protrusion 28d is connected in the orthogonal direction. It is formed from the center of the portion 28 toward the other side in the orthogonal direction.
　また、接続部２８の上面の径方向の内側端には、上側に向かって突出する２個の突起部２８ｅが形成されている。２個の突起部２８ｅのそれぞれは、２個の突起部２５ｃのそれぞれの周方向の外側端から径方向の外側に向かって形成されている。２個の突起部２８ｄの直交方向の両外側であって、突起部２８ｅの径方向の外側には、２個の突起部２８ｆが形成されている。突起部２８ｆの径方向の内側面は、径方向の外側に向かうにしたがって突起部２８ｄ側へ向かうように傾斜する傾斜面となっている。突起部２５ｃの上端面と突起部２８ｄの上端面と突起部２８ｅの上端面と突起部２８ｆの上端面とは上下方向において同じ位置に配置されている。 Further, at the radially inner end of the upper surface of the connecting portion 28, two protruding portions 28e that protrude upward are formed. Each of the two protrusions 28e is formed from the outer end in the circumferential direction of each of the two protrusions 25c toward the outer side in the radial direction. Two projecting portions 28f are formed on both outer sides in the orthogonal direction of the two projecting portions 28d and on the outer side in the radial direction of the projecting portion 28e. The radially inner side surface of the protrusion 28f is an inclined surface that is inclined toward the protrusion 28d as it goes outward in the radial direction. The upper end surface of the projection 25c, the upper end surface of the projection 28d, the upper end surface of the projection 28e, and the upper end surface of the projection 28f are arranged at the same position in the vertical direction.
　導線２３ａの一端部は、第２端子部２６ｂに半田付けされて固定されている。具体的には、導線２３ａは、第２端子部２６ｂの径方向の内側面に沿うように引き回されており、第２端子部２６ｂの上側部分の径方向の内側面に、導線２３ａの一端部が半田付けによって固定されている。第２端子部２６ｂの上側部分は、導線２３ａの一端部が固定される部分である導線固定部２６ｄとなっている。導線固定部２６ｄは、駆動用コイル２３の、突極部２４ｂに巻回された部分よりも上側に配置されている。また、導線固定部２６ｄは、突起部２５ｃ、２８ｄ～２８ｆの上端面よりも上側に配置されている。 One end portion of the conducting wire 23a is soldered and fixed to the second terminal portion 26b. Specifically, the conducting wire 23a is routed along the radial inner surface of the second terminal portion 26b, and one end of the conducting wire 23a is formed on the radial inner surface of the upper portion of the second terminal portion 26b. The part is fixed by soldering. The upper portion of the second terminal portion 26b is a lead wire fixing portion 26d that is a portion to which one end portion of the lead wire 23a is fixed. The lead wire fixing portion 26d is disposed above the portion of the driving coil 23 wound around the salient pole portion 24b. The conducting wire fixing portion 26d is disposed above the upper end surfaces of the projecting portions 25c, 28d to 28f.
　コネクタハウジング２７が一体で形成されるインシュレータ２５を第１インシュレータ２５とし、第１インシュレータ２５と周方向の一方側で隣り合うインシュレータ２５を第２インシュレータ２５とし、第１インシュレータ２５と周方向の他方側で隣り合うインシュレータ２５を第３インシュレータ２５とし、第１インシュレータ２５に巻回される駆動用コイル２３の導線２３ａを第１導線２３ａとし、第２インシュレータ２５に巻回される駆動用コイル２３の導線２３ａを第２導線２３ａとし、第３インシュレータ２５に巻回される駆動用コイル２３の導線２３ａを第３導線２３ａとし、３本の端子ピン２６のうちの直交方向の中心に配置される端子ピン２６を第１端子ピン２６とし、直交方向において第２インシュレータ２５側に配置される端子ピン２６を第２端子ピン２６とし、直交方向において第３インシュレータ２５側に配置される端子ピン２６を第３端子ピン２６とすると、第１導線２３ａの一端部は、第１端子ピン２６の導線固定部２６ｄに固定され、第２導線２３ａの一端部は、第２端子ピン２６の導線固定部２６ｄに固定され、第３導線２３ａの一端部は、第３端子ピン２７の導線固定部２６ｄに固定されている。 The insulator 25 in which the connector housing 27 is integrally formed is a first insulator 25, the insulator 25 adjacent to the first insulator 25 on one side in the circumferential direction is a second insulator 25, and the other side in the circumferential direction is the first insulator 25. The adjacent insulator 25 is the third insulator 25, the conductor 23a of the drive coil 23 wound around the first insulator 25 is the first conductor 23a, and the conductor of the drive coil 23 wound around the second insulator 25 is. 23a is the second conductor 23a, and the conductor 23a of the driving coil 23 wound around the third insulator 25 is the third conductor 23a. The terminal pin is arranged at the center of the three terminal pins 26 in the orthogonal direction. 26 is the first terminal pin 26 and is arranged on the second insulator 25 side in the orthogonal direction. If the terminal pin 26 to be used is the second terminal pin 26 and the terminal pin 26 arranged on the third insulator 25 side in the orthogonal direction is the third terminal pin 26, one end of the first conducting wire 23 a is the first terminal pin. 26, fixed to the conductive wire fixing portion 26d, one end of the second conductive wire 23a is fixed to the conductive wire fixing portion 26d of the second terminal pin 26, and one end of the third conductive wire 23a is fixed to the conductive wire of the third terminal pin 27. It is fixed to the part 26d.
　図５に示すように、第１導線２３ａは、第１インシュレータ２５の２個の突起部２５ｃの間、および、接続部２８の２個の突起部２８ｄの間を通過するように引き回されている。第２導線２３ａは、第２インシュレータ２５側に配置される突起部２８ｅと突起部２８ｆとの間、および、第２インシュレータ２５側に配置される突起部２８ｆと突起部２８ｄとの間を通過するように引き回されている。第３導線２３ａは、第３インシュレータ２５側に配置される突起部２８ｅと突起部２８ｆとの間、および、突起部２８ｆと突起部２８ｄとの間を通過するように引き回されている。 As shown in FIG. 5, the first conductor 23 a is routed so as to pass between the two protrusions 25 c of the first insulator 25 and between the two protrusions 28 d of the connection part 28. Yes. The second conducting wire 23a passes between the protruding portion 28e and the protruding portion 28f arranged on the second insulator 25 side and between the protruding portion 28f and the protruding portion 28d arranged on the second insulator 25 side. Have been drawn around. The third conducting wire 23a is routed so as to pass between the protruding portion 28e and the protruding portion 28f disposed on the third insulator 25 side and between the protruding portion 28f and the protruding portion 28d.
　２個の突起部２８ｄは、第１導線２３ａを第１端子ピン２６の第２端子部２６ｂへ案内する機能を果たしている。すなわち、２個の突起部２８ｄは、第１インシュレータ２５に巻回される駆動用コイル２３の引き出し線を第１端子ピン２６の第２端子部２６ｂへ案内する機能を果たしている。本形態では、２個の突起部２８ｄによって、第１導線２３ａを第１端子ピン２６の第２端子部２６ｂへ案内する導線ガイド部２８ｇが構成されている。すなわち、接続部２８には、導線ガイド部２８ｇが形成されている。なお、第１インシュレータ２５の２個の突起部２５ｃの間隔は、他のインシュレータ２５の２個の突起部２５ｃの間隔よりも狭くなっており、第１インシュレータ２５の２個の突起部２５ｃも、第１導線２３ａを第１端子ピン２６の第２端子部２６ｂへ案内する機能を果たしている。 The two projecting portions 28d serve to guide the first conductive wire 23a to the second terminal portion 26b of the first terminal pin 26. That is, the two projections 28 d serve to guide the lead wire of the driving coil 23 wound around the first insulator 25 to the second terminal portion 26 b of the first terminal pin 26. In this embodiment, a conductor guide portion 28g that guides the first conductor 23a to the second terminal portion 26b of the first terminal pin 26 is constituted by the two protrusions 28d. That is, the connecting portion 28 is formed with a conducting wire guide portion 28g. The interval between the two protrusions 25c of the first insulator 25 is narrower than the interval between the two protrusions 25c of the other insulators 25, and the two protrusions 25c of the first insulator 25 are also The first conducting wire 23 a is guided to the second terminal portion 26 b of the first terminal pin 26.
　第２インシュレータ２５側に配置される突起部２８ｄ～２８ｆは、第２導線２３ａを第２端子ピン２６の第２端子部２６ｂへ案内する機能を果たしている。すなわち、第２インシュレータ２５側に配置される突起部２８ｄ～２８ｆは、第２インシュレータ２５に巻回される駆動用コイル２３の引き出し線を第２端子ピン２６の第２端子部２６ｂへ案内する機能を果たしており、第２インシュレータ２５側に配置される突起部２８ｄ～２８ｆによって、第２導線２３ａを第２端子ピン２６の第２端子部２６ｂへ案内する導線ガイド部２８ｈが構成されている。 The projections 28d to 28f arranged on the second insulator 25 side serve to guide the second conductor 23a to the second terminal portion 26b of the second terminal pin 26. That is, the projections 28d to 28f arranged on the second insulator 25 side function to guide the lead wire of the driving coil 23 wound around the second insulator 25 to the second terminal portion 26b of the second terminal pin 26. The conductive wire guide portion 28h that guides the second conductive wire 23a to the second terminal portion 26b of the second terminal pin 26 is constituted by the projections 28d to 28f arranged on the second insulator 25 side.
　同様に、第３インシュレータ２５側に配置される突起部２８ｄ～２８ｆは、第３導線２３ａを第３端子ピン２６の第２端子部２６ｂへ案内する機能を果たしている。すなわち、第３インシュレータ２５側に配置される突起部２８ｄ～２８ｆは、第３インシュレータ２５に巻回される駆動用コイル２３の引き出し線を第３端子ピン２６の第２端子部２６ｂへ案内する機能を果たしており、第３インシュレータ２５側に配置される突起部２８ｄ～２８ｆによって、第３導線２３ａを第３端子ピン２６の第２端子部２６ｂへ案内する導線ガイド部２８ｈが構成されている。このように、接続部２８には、２個の導線ガイド部２８ｈが形成されている。 Similarly, the protrusions 28d to 28f arranged on the third insulator 25 side serve to guide the third conductor 23a to the second terminal portion 26b of the third terminal pin 26. That is, the protrusions 28d to 28f arranged on the third insulator 25 side function to guide the lead wire of the driving coil 23 wound around the third insulator 25 to the second terminal portion 26b of the third terminal pin 26. A conductor guide portion 28h that guides the third conductor 23a to the second terminal portion 26b of the third terminal pin 26 is constituted by the projections 28d to 28f arranged on the third insulator 25 side. As described above, two conductor guide portions 28 h are formed in the connection portion 28.
　上述のように、ステータコア２４の外周環部２４ａの下端面の外周端部分、突極部２４ｂの先端面およびコネクタハウジング２７の上端側部分は、樹脂封止部材１２によって覆われていないが、ステータ６のその他の部分は、樹脂封止部材１２によって覆われている。すなわち、図２に示すように、端子ピン２６の第２端子部２６ｂは、樹脂封止部材１２によって覆われており、凸部２７ｇよりも下側において、コネクタハウジング２７の径方向の内側面と第２端子部２６ｂとの間に形成される隙間には、樹脂封止部材１２の一部分が充填されている。コネクタハウジング２７の凸部２７ｇも、樹脂封止部材１２によって覆われている。また、端子ピン２６の連結部２６ｃも樹脂封止部材１２に覆われており、樹脂封止部材１２によって、コネクタハウジング２７からの下側への端子ピン２６の抜けが防止されている。 As described above, the outer peripheral end portion of the lower end surface of the outer peripheral ring portion 24a of the stator core 24, the tip end surface of the salient pole portion 24b, and the upper end side portion of the connector housing 27 are not covered with the resin sealing member 12, but the stator The other part of 6 is covered with a resin sealing member 12. That is, as shown in FIG. 2, the second terminal portion 26b of the terminal pin 26 is covered with the resin sealing member 12, and below the convex portion 27g, the radially inner side surface of the connector housing 27 Part of the resin sealing member 12 is filled in the gap formed between the second terminal portion 26b. The convex portion 27 g of the connector housing 27 is also covered with the resin sealing member 12. Further, the connecting portion 26c of the terminal pin 26 is also covered with the resin sealing member 12, and the resin sealing member 12 prevents the terminal pin 26 from coming off from the connector housing 27 to the lower side.
　（本形態の主な効果）
　以上説明したように、本形態では、導線２３ａの一端部が端子ピン２６の第２端子部２６ｂに半田付けされて固定されており、導線２３ａが直接、端子ピン２６に接続されている。そのため、本形態では、導線２３ａと端子ピン２６とを接続するための配線基板が不要になる。したがって、本形態では、モータ３のコストを低減することが可能になる。また、本形態では、配線基板が不要になるため、配線基板を固定するための構造が不要になるとともに配線基板の配置スペースが不要になる。したがって、本形態では、モータ３を小型化することが可能になる。 (Main effects of this form)
As described above, in this embodiment, one end portion of the conducting wire 23a is soldered and fixed to the second terminal portion 26b of the terminal pin 26, and the conducting wire 23a is directly connected to the terminal pin 26. Therefore, in this embodiment, a wiring board for connecting the conductive wire 23a and the terminal pin 26 becomes unnecessary. Therefore, in this embodiment, the cost of the motor 3 can be reduced. Further, in this embodiment, since a wiring board is not required, a structure for fixing the wiring board is not required, and an arrangement space for the wiring board is not required. Therefore, in this embodiment, the motor 3 can be reduced in size.
　本形態では、コネクタハウジング２７は、インシュレータ２５の、径方向における外側部分に繋がっている。また、導線２３ａの端部が半田付けによって固定される端子ピン２６の第２端子部２６ｂは、径方向においてコネクタハウジング２７よりも内側に配置されている。そのため、本形態では、上端が開口するコネクタハウジング２７の内部に、端子ピン２６の第１端子部２６ａが上下方向と平行に配置されていても、インシュレータ２５を介して突極部２４ｂに巻回された駆動用コイル２３の引き出し線の長さを短くすることが可能になる。したがって、本形態では、駆動用コイル２３の引き出し線の引き回し作業が容易になる。 In this embodiment, the connector housing 27 is connected to the outer portion of the insulator 25 in the radial direction. Further, the second terminal portion 26b of the terminal pin 26 to which the end portion of the conducting wire 23a is fixed by soldering is disposed inside the connector housing 27 in the radial direction. Therefore, in this embodiment, even if the first terminal portion 26a of the terminal pin 26 is arranged in parallel with the vertical direction inside the connector housing 27 whose upper end is open, it is wound around the salient pole portion 24b via the insulator 25. It is possible to reduce the length of the lead wire of the driving coil 23 that has been made. Therefore, in this embodiment, the drawing operation of the lead wire of the driving coil 23 is facilitated.
　また、本形態では、接続部２８に、導線２３ａを第２端子部２６ｂに案内する導線ガイド部２８ｇ、２８ｈが形成されているため、駆動用コイル２３の引き出し線の引き回し作業をより容易に行うことが可能になる。 Further, in this embodiment, since the lead wire guide portions 28g and 28h for guiding the lead wire 23a to the second terminal portion 26b are formed in the connection portion 28, the lead-out operation of the driving coil 23 is more easily performed. It becomes possible.
　本形態では、第２端子部２６ｂが、径方向においてコネクタハウジング２７より内側に配置されるとともに、第２端子部２６ｂの、導線２３ａの端部が固定される部分である導線固定部２６ｄが、駆動用コイル２３の、突極部２４ｂに巻回された部分よりも上側に配置されている。そのため、本形態では、上端が開口するコネクタハウジング２７の内部に、第１端子部２６ａが上下方向と平行に配置されていても、インシュレータ２５の上側であって、かつ、径方向におけるコネクタハウジング２７の内側に、導線２３ａの端部を第２端子部２６ｂに半田付けする際の作業スペースを確保することが可能になる。したがって、本形態では、端子ピン２６への導線２３ａの端部の半田付け作業を容易に行うことが可能になる。 In the present embodiment, the second terminal portion 26b is disposed inside the connector housing 27 in the radial direction, and the lead wire fixing portion 26d, which is a portion to which the end portion of the lead wire 23a of the second terminal portion 26b is fixed, The driving coil 23 is disposed above the portion wound around the salient pole portion 24b. Therefore, in this embodiment, even if the first terminal portion 26a is arranged in parallel with the vertical direction inside the connector housing 27 whose upper end is open, the connector housing 27 is located above the insulator 25 and in the radial direction. It is possible to secure a working space for soldering the end portion of the conductive wire 23a to the second terminal portion 26b. Therefore, in this embodiment, it is possible to easily perform the soldering operation of the end portion of the conducting wire 23a to the terminal pin 26.
　本形態では、コネクタハウジング２７の径方向の内側面に、径方向の内側に向かって突出する凸部２７ｇが形成されており、第２端子部２６ｂの上端側部分が凸部２７ｇに接触している。そのため、本形態では、第２端子部２６ｂに導線２３ａの端部を半田付けする際の端子ピン２６の回転（具体的には、上下方向を回転の軸方向とする端子ピン２６の回転）および径方向の外側への第２端子部２６ｂの撓みを凸部２７ｇによって防止することが可能になる。また、本形態では、コネクタハウジング２７の下端面に、直交方向における連結部２６ｃの両側面のそれぞれが接触する２個の凸部２７ｅが形成されているため、第２端子部２６ｂに導線２３ａの端部を半田付けする際の端子ピン２６の回転を凸部２７ｅによっても防止することが可能になる。したがって、本形態では、第２端子部２６ｂに導線２３ａの端部を半田付けする際の端子ピン２６の状態を安定させることが可能になり、その結果、端子ピン２６への導線２３ａの端部の半田付け作業をより容易に行うことが可能になる。 In this embodiment, a convex portion 27g that protrudes inward in the radial direction is formed on the radially inner side surface of the connector housing 27, and the upper end side portion of the second terminal portion 26b is in contact with the convex portion 27g. Yes. Therefore, in this embodiment, rotation of the terminal pin 26 (specifically, rotation of the terminal pin 26 with the vertical direction being the axial direction of rotation) when soldering the end of the conductor 23a to the second terminal portion 26b and The convex portion 27g can prevent the second terminal portion 26b from bending outward in the radial direction. Further, in this embodiment, since two convex portions 27e are formed on the lower end surface of the connector housing 27 so as to contact each of both side surfaces of the connecting portion 26c in the orthogonal direction, the conductor 23a is connected to the second terminal portion 26b. The rotation of the terminal pin 26 when soldering the end portion can be prevented by the convex portion 27e. Therefore, in this embodiment, it is possible to stabilize the state of the terminal pin 26 when the end portion of the conducting wire 23a is soldered to the second terminal portion 26b. As a result, the end portion of the conducting wire 23a to the terminal pin 26 can be stabilized. This makes it possible to perform the soldering work more easily.
　本形態では、コネクタハウジング２７の凸部２７ｇよりも下側において、コネクタハウジング２７の径方向の内側面と第２端子部２６ｂとが径方向において離れている。そのため、本形態では、第２端子部２６ｂの上端側部分が凸部２７ｇに接触していても、第２端子部２６ｂに導線２３ａの端部を半田付けする際の熱に起因するコネクタハウジング２７の変形を抑制することが可能になる。 In the present embodiment, the inner side surface in the radial direction of the connector housing 27 and the second terminal portion 26b are separated in the radial direction below the convex portion 27g of the connector housing 27. Therefore, in this embodiment, even if the upper end side portion of the second terminal portion 26b is in contact with the convex portion 27g, the connector housing 27 is caused by the heat generated when the end portion of the conducting wire 23a is soldered to the second terminal portion 26b. Can be suppressed.
　本形態では、端子ピン２６の連結部２６ｃが樹脂封止部材１２に覆われており、樹脂封止部材１２によって、コネクタハウジング２７からの下側への端子ピン２６の抜けが防止されている。そのため、本形態では、駆動用コイル２３を流体から保護するために設けられた樹脂封止部材１２を用いて、コネクタハウジング２７からの下側への端子ピン２６の抜けを防止することが可能になる。 In this embodiment, the connecting portion 26c of the terminal pin 26 is covered with the resin sealing member 12, and the resin sealing member 12 prevents the terminal pin 26 from coming off from the connector housing 27 downward. Therefore, in this embodiment, it is possible to prevent the terminal pin 26 from coming off from the connector housing 27 by using the resin sealing member 12 provided to protect the driving coil 23 from the fluid. Become.
　本形態では、インシュレータ２５とコネクタハウジング２７とを繋ぐ接続部２８が、ステータコア２４の外周環部２４ａの上端面に接触するとともに、外周環部２４ａの外周面の上側部分に接触している。そのため、本形態では、コネクタハウジング２７に対して径方向の外側への外力が作用したときに接続部２８に作用する力を外周環部２４ａで受けることが可能になる。したがって、本形態では、ステータ６が樹脂封止部材１２に覆われる前の製造工程（たとえば、突極部２４ｂに駆動用コイル２３を巻回する工程や、導線２３ａの端部を第２端子部２６ｂに半田付けして固定する工程）において、コネクタハウジング２７に対して径方向の外側への外力が作用しても、接続部２８の損傷を抑制することが可能になる。 In this embodiment, the connecting portion 28 connecting the insulator 25 and the connector housing 27 is in contact with the upper end surface of the outer peripheral ring portion 24a of the stator core 24 and is in contact with the upper portion of the outer peripheral surface of the outer peripheral ring portion 24a. For this reason, in this embodiment, it is possible to receive the force acting on the connection portion 28 at the outer peripheral ring portion 24a when an external force in the radial direction acts on the connector housing 27. Therefore, in this embodiment, the manufacturing process before the stator 6 is covered with the resin sealing member 12 (for example, the step of winding the driving coil 23 around the salient pole portion 24b, or the end of the conductive wire 23a is connected to the second terminal portion. In the step of soldering and fixing to 26b), even if an external force is applied to the connector housing 27 outward in the radial direction, damage to the connecting portion 28 can be suppressed.
　本形態では、インシュレータ２５とコネクタハウジング２７と接続部２８とが一体で形成されている。コネクタハウジング２７および接続部２８と、インシュレータ２５とが別体で形成されて、接続部２８がインシュレータ２５に固定されている場合には、ステータ６が樹脂封止部材１２に覆われる前の製造工程において、インシュレータ２５からコネクタハウジング２７が外れるおそれがあるが、本形態では、インシュレータ２５とコネクタハウジング２７と接続部２８とが一体で形成されているため、ステータ６が樹脂封止部材１２に覆われる前の製造工程において、インシュレータ２５からのコネクタハウジング２７の外れを防止することが可能になる。また、インシュレータ２５とコネクタハウジング２７と接続部２８とが一体で形成されているため、ステータ６の組立前の部品の管理が容易になる。 In this embodiment, the insulator 25, the connector housing 27, and the connecting portion 28 are integrally formed. In the case where the connector housing 27 and the connecting portion 28 and the insulator 25 are formed separately and the connecting portion 28 is fixed to the insulator 25, the manufacturing process before the stator 6 is covered with the resin sealing member 12 However, in this embodiment, since the insulator 25, the connector housing 27, and the connection portion 28 are integrally formed, the stator 6 is covered with the resin sealing member 12. In the previous manufacturing process, it is possible to prevent the connector housing 27 from coming off from the insulator 25. Further, since the insulator 25, the connector housing 27, and the connection portion 28 are integrally formed, it is easy to manage the parts before the stator 6 is assembled.
　また、本形態では、内部にステータコア２４が配置された金型の中に樹脂を充填させるインサート成形によって、インシュレータ２５とコネクタハウジング２７と接続部２８とが一体で成形されているため、インシュレータ２５、コネクタハウジング２７および接続部２８のステータコア２４に対する密着性を高めることが可能になる。したがって、本形態では、インシュレータ２５、コネクタハウジング２７および接続部２８の強度を高めることが可能になる。 Further, in this embodiment, the insulator 25, the connector housing 27, and the connecting portion 28 are integrally formed by insert molding in which a resin is filled in a mold in which the stator core 24 is disposed, and therefore the insulator 25, The adhesion of the connector housing 27 and the connecting portion 28 to the stator core 24 can be improved. Therefore, in this embodiment, the strength of the insulator 25, the connector housing 27, and the connection portion 28 can be increased.
　本形態では、接続部２８に、上下方向で接続部２８を貫通する貫通穴２８ｃが形成されている。また、コネクタハウジング２７の径方向の内側面の下側部分は、貫通穴２８ｃの、径方向の外側の側面となっている。さらに、直交方向における貫通穴２８ｃの幅は、コネクタハウジング２７の径方向の内側面に形成される凸部２７ｇの幅よりも広くなっており、かつ、貫通穴２８ｃの、径方向の内側の側面は、凸部２７ｇの、径方向の内側面より径方向の内側に配置されている。 In this embodiment, the connection portion 28 is formed with a through hole 28c penetrating the connection portion 28 in the vertical direction. Further, the lower portion of the radially inner side surface of the connector housing 27 is the radially outer side surface of the through hole 28c. Furthermore, the width of the through hole 28c in the orthogonal direction is wider than the width of the convex portion 27g formed on the radially inner side surface of the connector housing 27, and the side surface on the radially inner side of the through hole 28c. Are arranged on the inner side in the radial direction from the inner side surface in the radial direction of the convex portion 27g.
　そのため、本形態では、コネクタハウジング２７の径方向の内側面に、径方向の内側に向かって突出する凸部２７ｇが形成されていても、上下方向に２分割される金型を用いて、インシュレータ２５、コネクタハウジング２７および接続部２８を一体成形することが可能になる。したがって、本形態では、コネクタハウジング２７の径方向の内側面に凸部２７ｇが形成されていても、インシュレータ２５、コネクタハウジング２７および接続部２８の製造コストを低減することが可能になる。 For this reason, in this embodiment, even if the radially inner side surface of the connector housing 27 is formed with a protruding portion 27g that protrudes inward in the radial direction, the mold is divided into two in the vertical direction. 25, the connector housing 27 and the connecting portion 28 can be integrally formed. Therefore, in this embodiment, even if the convex portion 27g is formed on the radially inner side surface of the connector housing 27, the manufacturing cost of the insulator 25, the connector housing 27, and the connection portion 28 can be reduced.
　（端子ピンの変形例）
　図８は、本発明の他の実施の形態にかかるコネクタ３０付きのインシュレータ２５の断面図である。図８では、上述した形態と同一の構成には同一の符号を付している。 (Modification of terminal pin)
FIG. 8 is a cross-sectional view of an insulator 25 with a connector 30 according to another embodiment of the present invention. In FIG. 8, the same code | symbol is attached | subjected to the structure same as the form mentioned above.
　上述した形態において、端子ピン２６の第２端子部２６ｂの上端に、径方向の内側へ突出する突出部２６ｅが形成されていても良い。すなわち、図８に示すように、第２端子部２６ｂは、直線状に形成され第１端子部２６ａと平行に配置される直線部２６ｆと、直線部２６ｆの上端から径方向の内側へ突出する突出部２６ｅとから構成されていても良い。この場合には、導線２３ａの端部が突出部２６ｅに絡げられた後に、導線２３ａの端部が第２端子部２６ｂに半田付けされて固定される。たとえば、導線２３ａの端部が突出部２６ｅに１回巻かれた後に、導線２３ａの端部が第２端子部２６ｂに半田付けされて固定される。 In the above-described embodiment, a protruding portion 26e protruding inward in the radial direction may be formed at the upper end of the second terminal portion 26b of the terminal pin 26. That is, as shown in FIG. 8, the second terminal portion 26b is formed in a straight line shape and is arranged in parallel with the first terminal portion 26a, and protrudes radially inward from the upper end of the straight portion 26f. You may be comprised from the protrusion part 26e. In this case, after the end portion of the conducting wire 23a is entangled with the protruding portion 26e, the end portion of the conducting wire 23a is soldered and fixed to the second terminal portion 26b. For example, after the end portion of the conducting wire 23a is wound once around the protruding portion 26e, the end portion of the conducting wire 23a is soldered and fixed to the second terminal portion 26b.
　また、この場合には、直線部２６ｆの上側部分に導線２３ａの端部が半田付けされて固定されるか、または、突出部２６ｅに導線２３ａの端部が半田付けされて固定されるか、あるいは、直線部２６ｆの上側部分および突出部２６ｅに導線２３ａの端部が半田付けされて固定される。すなわち、この場合には、直線部２６ｆの上側部分および突出部２６ｅの少なくともいずれか一方に、導線２３ａの端部が半田付けされて固定されており、直線部２６ｆの上側部分および突出部２６ｅの少なくともいずれか一方が、導線２３ａの端部が固定される部分である導線固定部となっている。 In this case, the end of the conductor 23a is soldered and fixed to the upper portion of the straight portion 26f, or the end of the conductor 23a is soldered and fixed to the protruding portion 26e. Or the edge part of the conducting wire 23a is soldered and fixed to the upper part of the linear part 26f, and the protrusion part 26e. That is, in this case, the end portion of the conductive wire 23a is soldered and fixed to at least one of the upper portion of the straight portion 26f and the protruding portion 26e, and the upper portion of the straight portion 26f and the protruding portion 26e are fixed. At least one of them is a conductive wire fixing portion that is a portion to which the end of the conductive wire 23a is fixed.
　この場合には、導線２３ａの端部を突出部２６ｅに絡げてから第２端子部２６ｂに半田付けすることが可能になる。そのため、第２端子部２６ｂに導線２３ａの端部を半田付けする際の導線２３ａの端部の状態を安定させることが可能になる。ただし、上述した形態のように、第２端子部２６ｂが直線状に形成されていれば、端子ピン２６の構成を簡素化することが可能になる。 In this case, it is possible to solder the end portion of the conducting wire 23a to the second terminal portion 26b after the end portion of the conducting wire 23a is entangled with the protruding portion 26e. Therefore, it is possible to stabilize the state of the end portion of the conducting wire 23a when the end portion of the conducting wire 23a is soldered to the second terminal portion 26b. However, the configuration of the terminal pin 26 can be simplified if the second terminal portion 26b is formed linearly as in the above-described form.
　（インシュレータ、コネクタハウジングおよび接続部の変形例）
　図９は、本発明の他の実施の形態にかかるコネクタ３０付きのインシュレータ２５の斜視図である。図１０は、図９に示すコネクタ３０とインシュレータ２５とを分解した状態の斜視図である。図９、図１０では、上述した形態と同一の構成には同一の符号を付している。 (Modifications of insulator, connector housing and connecting part)
FIG. 9 is a perspective view of an insulator 25 with a connector 30 according to another embodiment of the present invention. FIG. 10 is a perspective view of the connector 30 and the insulator 25 shown in FIG. 9 in an exploded state. In FIG. 9 and FIG. 10, the same code | symbol is attached | subjected to the structure same as the form mentioned above.
　上述した形態では、インシュレータ２５とコネクタハウジング２７と接続部２８とが一体で形成されているが、コネクタハウジング２７と接続部２８とが一体で形成されるとともに、コネクタハウジング２７および接続部２８と、インシュレータ２５とが別体で形成され、コネクタハウジング２７および接続部２８がインシュレータ２５に固定されていても良い。この場合には、たとえば、図９、図１０に示すように、接続部２８に、径方向の内側へ突出する突出部２８ｋが形成されている。突出部２８ｋの径方向の内側端には、直交方向の両側へ伸びる２個の突起部２８ｐが形成されている。突起部２８ｐの径方向の外側部分は、直交方向の内側に向かって窪む凹部２８ｒとなっている。 In the embodiment described above, the insulator 25, the connector housing 27, and the connection portion 28 are integrally formed. However, the connector housing 27 and the connection portion 28 are integrally formed, and the connector housing 27 and the connection portion 28 are formed. The insulator 25 may be formed separately and the connector housing 27 and the connection portion 28 may be fixed to the insulator 25. In this case, for example, as shown in FIGS. 9 and 10, the connecting portion 28 is formed with a protruding portion 28 k that protrudes inward in the radial direction. Two protrusions 28p extending to both sides in the orthogonal direction are formed at the radially inner end of the protrusion 28k. A radially outer portion of the protruding portion 28p is a recessed portion 28r that is recessed toward the inner side in the orthogonal direction.
　凹部２８ｒには、インシュレータ２５の突起部２５ｃが嵌っている。すなわち、接続部２８には、２個の突起部２５ｃのそれぞれが嵌る２個の凹部２８ｒが形成されている。２個の凹部２８ｒのそれぞれには、２個の突起部２５ｃの、周方向における内側端部分のそれぞれが嵌っている。この変形例では、２個の凹部２８ｒのそれぞれに２個の突起部２５ｃのそれぞれが嵌ることで、コネクタハウジング２７および接続部２８がインシュレータ２５に固定されている。コネクタハウジング２７および接続部２８がインシュレータ２５に固定された状態では、接続部２８の、径方向の内側端部分の下面が、第２覆部２５ｂの上端面に接触している。 The protrusion 25c of the insulator 25 is fitted in the recess 28r. That is, the connection portion 28 is formed with two recesses 28r into which the two protrusions 25c are fitted. Each of the two recessed portions 28r is fitted with each of the inner end portions in the circumferential direction of the two protruding portions 25c. In this modification, the connector housing 27 and the connection portion 28 are fixed to the insulator 25 by fitting the two protrusions 25c into the two recesses 28r, respectively. In a state where the connector housing 27 and the connection portion 28 are fixed to the insulator 25, the lower surface of the radially inner end portion of the connection portion 28 is in contact with the upper end surface of the second cover portion 25b.
　この変形例では、２個の凹部２８ｒは、インシュレータ２５に係合可能なコネクタ側係合部である。また、２個の突起部２５ｃは、コネクタ側係合部である２個の凹部２８ｒに係合可能な絶縁部材側係合部であり、９個のインシュレータ２５のそれぞれに絶縁部材側係合部が形成されている。 In this modification, the two recesses 28r are connector-side engaging portions that can be engaged with the insulator 25. The two protrusions 25c are insulating member-side engaging portions that can be engaged with the two concave portions 28r that are the connector-side engaging portions, and each of the nine insulators 25 has an insulating member-side engaging portion. Is formed.
　ステータコア２４がカーリングコアである場合であって、駆動用コイル２３を突極部２４ｂに巻回した後に、帯状コア部２４ｄを、外周部２４ｃと外周部２４ｃとの境界で折り曲げて、帯状コア部２４ｄの端部同士を繋ぐ場合には、モータ３の仕様等に応じて、ステータコア２４に対するコネクタハウジング２７の取付位置を変える必要が生じる場合がある。すなわち、モータ３の回転方向や給電タイミングの違いによって、駆動用コイル２３の巻き始め位置や巻き終わり位置を変えたり、駆動用コイル２３の巻回方向を変えたりする必要があるため、たとえば、図４（Ａ）に示す帯状コア部２４ｄの端部に配置される外周部２４ｃに対応する位置にコネクタハウジング２７を取り付ける場合もあれば、帯状コア部２４ｄの中心に配置される外周部２４ｃに対応する位置にコネクタハウジング２７を取り付ける場合もある。 In the case where the stator core 24 is a curling core, after the driving coil 23 is wound around the salient pole part 24b, the belt-like core part 24d is bent at the boundary between the outer peripheral part 24c and the outer peripheral part 24c, When connecting the end portions of 24d, it may be necessary to change the mounting position of the connector housing 27 with respect to the stator core 24 in accordance with the specifications of the motor 3 or the like. That is, it is necessary to change the winding start position and the winding end position of the driving coil 23 or the winding direction of the driving coil 23 depending on the rotation direction of the motor 3 and the power feeding timing. In some cases, the connector housing 27 may be attached at a position corresponding to the outer peripheral portion 24c disposed at the end of the strip-shaped core portion 24d shown in FIG. In some cases, the connector housing 27 may be attached to the position where the operation is performed.
　この変形例では、コネクタハウジング２７および接続部２８と、インシュレータ２５とが別体で形成されるとともに、９個のインシュレータ２５のそれぞれに２個の突起部２５ｃが形成され、かつ、接続部２８に２個の凹部２８ｒが形成されているため、インシュレータ２５の形状を変更しなくても、ステータコア２４に対するコネクタハウジング２７の取付位置を変更することが可能になる。したがって、ステータコア２４に対するコネクタハウジング２７の取付位置を容易に変更することが可能になる。 In this modification, the connector housing 27 and the connection portion 28 and the insulator 25 are formed separately, and two protrusions 25 c are formed on each of the nine insulators 25. Since the two recesses 28r are formed, the mounting position of the connector housing 27 with respect to the stator core 24 can be changed without changing the shape of the insulator 25. Therefore, the mounting position of the connector housing 27 with respect to the stator core 24 can be easily changed.
　また、この変形例では、コネクタハウジング２７および接続部２８とインシュレータ２５とが別体で形成されているため、形状の異なる複数種類のコネクタハウジング２７を、共通のインシュレータ２５に取り付けることが可能になる。また、この変形例では、２個の突起部２５ｃと２個の凹部２８ｒとを用いてインシュレータ２５に接続部２８を取り付けることができるため、比較的簡易な構成で、インシュレータ２５に接続部２８を取り付けることが可能になる。 Moreover, in this modification, since the connector housing 27 and the connecting portion 28 and the insulator 25 are formed separately, a plurality of types of connector housings 27 having different shapes can be attached to the common insulator 25. . Moreover, in this modification, since the connection part 28 can be attached to the insulator 25 using the two protrusion parts 25c and the two recessed parts 28r, the connection part 28 is connected to the insulator 25 with a relatively simple configuration. It becomes possible to install.
　なお、図９、図１０に示す例では、インシュレータ２５は、上下方向に２分割される上側インシュレータ３５と、下側インシュレータ３６とから構成されている。この場合には、上側インシュレータ３５と下側インシュレータ３６とが別体で形成されており、インシュレータ２５は、インサート成形によって形成されていない。また、この場合には、帯状コア部２４ｄと９個の突極部２４ｂとから構成されるコア原体に、上側インシュレータ３５および下側インシュレータ３６を取り付けるとともに、コネクタハウジング２７および接続部２８をインシュレータ２５（具体的には、上側インシュレータ３５）に取り付けた後、インシュレータ２５を介して駆動用コイル２３を突極部２４ｂに巻回してから、帯状コア部２４ｄを、外周部２４ｃと外周部２４ｃとの境界で折り曲げて、帯状コア部２４ｄの端部同士を繋ぐ。ただし、この変形例において、インサート成形によってインシュレータ２５が形成されていても良い。 In the example shown in FIGS. 9 and 10, the insulator 25 includes an upper insulator 35 and a lower insulator 36 that are divided into two in the vertical direction. In this case, the upper insulator 35 and the lower insulator 36 are formed separately, and the insulator 25 is not formed by insert molding. In this case, the upper insulator 35 and the lower insulator 36 are attached to the core body composed of the strip-shaped core portion 24d and the nine salient pole portions 24b, and the connector housing 27 and the connection portion 28 are connected to the insulator. 25 (specifically, the upper insulator 35), the drive coil 23 is wound around the salient pole portion 24b via the insulator 25, and then the belt-like core portion 24d is connected to the outer peripheral portion 24c and the outer peripheral portion 24c. The ends of the belt-like core portion 24d are connected to each other. However, in this modification, the insulator 25 may be formed by insert molding.
　また、図９、図１０に示す例では、上述した形態の導線ガイド部２８ｇに代えて、第１導線２３ａを第１端子ピン２６の第２端子部２６ｂへ案内するガイド溝２８ｓが接続部２８の上面に形成されている。また、上述した形態の２個の導線ガイド部２８ｈに代えて、第２導線２３ａを第２端子ピン２６の第２端子部２６ｂへ案内するガイド溝２８ｔと、第３導線２３ａを第３端子ピン２６の第２端子部２６ｂへ案内するガイド溝２８ｔとが接続部２８の上面に形成されている。ガイド溝２８ｓ、２８ｔは、接続部２８の上面から下側へ窪む角溝状に形成されるとともに直線状に形成されている。図９、図１０に示す例では、ガイド溝２８ｓ、２８ｔは、導線２３ａを第２端子部２６ｂへ案内する導線ガイド部となっている。 In the example shown in FIGS. 9 and 10, a guide groove 28 s that guides the first conductor 23 a to the second terminal portion 26 b of the first terminal pin 26 instead of the conductor guide portion 28 g of the above-described form. It is formed on the upper surface. Further, instead of the two conductor guide portions 28h of the above-described form, a guide groove 28t for guiding the second conductor 23a to the second terminal portion 26b of the second terminal pin 26, and the third conductor 23a as the third terminal pin. A guide groove 28 t that guides to the second terminal portion 26 b of 26 is formed on the upper surface of the connection portion 28. The guide grooves 28s and 28t are formed in a rectangular groove shape that is recessed downward from the upper surface of the connection portion 28, and are also formed in a straight line shape. In the example shown in FIGS. 9 and 10, the guide grooves 28 s and 28 t are conductive wire guide portions that guide the conductive wire 23 a to the second terminal portion 26 b.
　（他の実施の形態）
　上述した形態は、本発明の好適な形態の一例ではあるが、これに限定されるものではなく本発明の要旨を変更しない範囲において種々変形実施が可能である。 (Other embodiments)
The above-described embodiment is an example of a preferred embodiment of the present invention, but is not limited to this, and various modifications can be made without departing from the scope of the present invention.
　上述した形態において、直線状に形成される第２端子部２６ｂは、直線状に形成される第１端子部２６ａと平行に配置されているが、第２端子部２６ｂは、第１端子部２６ａと平行に配置されていなくても良い。また、上述した形態において、第１端子部２６ａの下端の位置と第２端子部２６ｂの下端の位置とが上下方向においてずれていても良い。 In the embodiment described above, the second terminal portion 26b formed in a linear shape is arranged in parallel with the first terminal portion 26a formed in a linear shape, but the second terminal portion 26b is arranged in the first terminal portion 26a. It is not necessary to be arranged in parallel. Moreover, in the form mentioned above, the position of the lower end of the 1st terminal part 26a and the position of the lower end of the 2nd terminal part 26b may have shifted | deviated in the up-down direction.
　上述した形態では、コネクタハウジング２７の上側部分がインシュレータ２５よりも上側に配置されているが、コネクタハウジング２７の全体がインシュレータ２５より上側に配置されていても良い。また、上述した形態では、第１端子部２６ａの全体がコネクタハウジング２７の内部に配置されているが、第１端子部２６ａの下端側の一部分がコネクタハウジング２７の外部に配置されていても良い。 In the embodiment described above, the upper portion of the connector housing 27 is disposed above the insulator 25, but the entire connector housing 27 may be disposed above the insulator 25. In the embodiment described above, the entire first terminal portion 26 a is disposed inside the connector housing 27, but a part of the lower end side of the first terminal portion 26 a may be disposed outside the connector housing 27. .
　上述した形態では、９個のインシュレータ２５は周方向において繋がっていないが、９個のインシュレータ９が周方向において繋がっていても良い。また、上述した形態において、図９、図１０に示す変形例と同様に、インシュレータ２５が上側インシュレータ３５と下側インシュレータ３６とから構成されていても良い。すなわち、上述した形態において、インシュレータ２５、コネクタハウジング２７および接続部２８がインサート成形によって形成されていなくても良い。この場合には、上側インシュレータ３５とコネクタハウジング２７と接続部２８とが一体で形成されている。 In the above-described form, the nine insulators 25 are not connected in the circumferential direction, but the nine insulators 9 may be connected in the circumferential direction. In the embodiment described above, the insulator 25 may be composed of an upper insulator 35 and a lower insulator 36 as in the modification examples shown in FIGS. 9 and 10. That is, in the embodiment described above, the insulator 25, the connector housing 27, and the connection portion 28 may not be formed by insert molding. In this case, the upper insulator 35, the connector housing 27, and the connection portion 28 are integrally formed.
　上述した形態において、コネクタハウジング２７に、ガイド部２７ｄが形成されていなくても良いし、凸部２７ｇが形成されていなくても良い。また、上述した形態において、ステータコア２４は、周方向で複数に分割されたコアが組み合わされることで形成されるいわゆる分割コアであっても良い。また、ステータコア２４は、環状に形成される薄い磁性板が積層されて形成される一体型の環状コアであっても良い。また、上述した形態では、モータ３は、ポンプ装置１に使用されているが、モータ３は、ポンプ装置１以外に使用されても良い。 In the embodiment described above, the connector housing 27 may not have the guide portion 27d or the convex portion 27g. Moreover, in the form mentioned above, the stator core 24 may be a so-called divided core formed by combining a plurality of cores divided in the circumferential direction. The stator core 24 may be an integrated annular core formed by laminating thin magnetic plates formed in an annular shape. Moreover, in the form mentioned above, although the motor 3 is used for the pump apparatus 1, the motor 3 may be used other than the pump apparatus 1.
　１　ポンプ装置、　２　羽根車、　３　モータ、　５　ロータ、　６　ステータ、　１２　樹脂封止部材、　１４　回転軸、　１５　駆動用磁石、　２３　駆動用コイル、　２３ａ　導線、　２４　ステータコア、　２４ａ　外周環部、　２４ｂ　突極部、　２４ｃ　外周部、　２４ｅ　つなぎ目、　２４ｆ　コア接続部、　２５　インシュレータ（絶縁部材）、　２５ｃ　突起部（絶縁部材側係合部）、　２６　端子ピン、　２６ａ　第１端子部、　２６ｂ　第２端子部（直線部）、　２６ｃ　連結部、　２６ｄ　導線固定部、
　２６ｅ　突出部、　２６ｆ　直線部、　２７　コネクタハウジング、　２７ｄ　ガイド部、　２７ｇ　凸部、　２８　接続部、　２８ｃ　貫通穴、　２８ｇ、２８ｈ　導線ガイド部、　２８ｒ　凹部（コネクタ側係合部）、　２８ｓ、２８ｔ　ガイド溝（導線ガイド部）、　Ｚ１　第１方向、　Ｚ２　第２方向、 DESCRIPTION OF SYMBOLS 1 Pump apparatus, 2 Impeller, 3 Motor, 5 Rotor, 6 Stator, 12 Resin sealing member, 14 Rotating shaft, 15 Driving magnet, 23 Driving coil, 23a Conductor, 24 Stator core, 24a Outer ring, 24b Projection Pole part, 24c outer peripheral part, 24e joint, 24f core connecting part, 25 insulator (insulating member), 25c protrusion (insulating member side engaging part), 26 terminal pin, 26a first terminal part, 26b second terminal part ( Straight part), 26c connecting part, 26d conducting wire fixing part,
26e Protruding part, 26f Linear part, 27 Connector housing, 27d Guide part, 27g Convex part, 28 Connection part, 28c Through hole, 28g, 28h Conductor guide part, 28r Concave part (connector side engaging part), 28s, 28t Guide groove (Conductor guide part), Z1 first direction, Z2 second direction,

Claims (12)

  1. 　駆動用磁石を有するロータと、筒状に形成され前記ロータの外周側に配置されるステータとを備え、
    　前記ステータは、複数の絶縁部材と、複数の駆動用コイルと、複数の前記絶縁部材のそれぞれを介して複数の前記駆動用コイルのそれぞれが巻回される複数の突極部を有するステータコアと、前記駆動用コイルを構成する導線の端部が接続される複数の端子ピンと、複数の前記端子ピンを保持するコネクタハウジングとを備え、
    　前記ロータの軸方向の一方を第１方向とし、第１方向の反対方向を第２方向とすると、　前記コネクタハウジングは、前記絶縁部材の、前記ロータの径方向における外側部分に繋がっており、
    　前記コネクタハウジングの、少なくとも第１方向側部分は、前記絶縁部材よりも第１方向側に配置され、
    　前記コネクタハウジングの第１方向端は、開口しており、
    　前記端子ピンは、直線状に形成され前記軸方向と平行に配置されるとともに少なくともその一部分が前記コネクタハウジングの内部に配置される第１端子部と、前記コネクタハウジングの外部に配置される第２端子部と、前記第１端子部の第２方向端と前記第２端子部の第２方向端とを繋ぐ連結部とを備え、
    　前記第２端子部は、前記径方向において前記コネクタハウジングよりも内側に配置され、
    　前記第２端子部には、前記導線の端部が半田付けによって固定され、
    　前記第２端子部の、前記導線の端部が固定される部分である導線固定部は、前記駆動用コイルの、前記突極部に巻回された部分よりも第１方向側に配置されていることを特徴とするモータ。     A rotor having a driving magnet, and a stator formed in a cylindrical shape and disposed on the outer peripheral side of the rotor,
    The stator includes a plurality of insulating members, a plurality of driving coils, and a stator core having a plurality of salient pole portions around which each of the plurality of driving coils is wound via each of the plurality of insulating members, A plurality of terminal pins to which end portions of the conducting wires constituting the driving coil are connected, and a connector housing holding the plurality of terminal pins;
    When one of the axial directions of the rotor is the first direction and the opposite direction of the first direction is the second direction, the connector housing is connected to the outer portion of the insulating member in the radial direction of the rotor,
    At least a first direction side portion of the connector housing is disposed closer to the first direction than the insulating member,
    The first direction end of the connector housing is open,
    The terminal pin is formed in a straight line and is arranged in parallel with the axial direction, and at least a part of the terminal pin is arranged inside the connector housing, and a second terminal arranged outside the connector housing. A terminal portion, and a connecting portion that connects a second direction end of the first terminal portion and a second direction end of the second terminal portion,
    The second terminal portion is disposed inside the connector housing in the radial direction,
    In the second terminal portion, an end portion of the conducting wire is fixed by soldering,
    The lead wire fixing portion, which is a portion of the second terminal portion to which the end portion of the lead wire is fixed, is disposed on the first direction side of the portion of the driving coil wound around the salient pole portion. A motor characterized by having
  2. 　前記第２端子部は、直線状に形成され前記第１端子部と平行に配置される直線部によって構成され、
    　前記直線部の第１方向側部分が前記導線固定部となっていることを特徴とする請求項１記載のモータ。     The second terminal portion is formed by a straight portion formed in a straight line and arranged in parallel with the first terminal portion,
    The motor according to claim 1, wherein a first direction side portion of the straight portion is the conductor fixing portion.
  3. 　前記第２端子部は、直線状に形成され前記第１端子部と平行に配置される直線部と、前記直線部の第１方向端側から前記径方向の内側へ突出する突出部とから構成され、
    　前記直線部の第１方向側部分および前記突出部の少なくともいずれか一方が前記導線固定部となっていることを特徴とする請求項１記載のモータ。     The second terminal portion includes a linear portion formed in a straight line and disposed in parallel with the first terminal portion, and a protruding portion that protrudes inward in the radial direction from the first direction end side of the linear portion. And
    2. The motor according to claim 1, wherein at least one of the first direction side portion of the linear portion and the protruding portion is the conductor fixing portion.
  4. 　前記コネクタハウジングの、前記径方向の内側面には、前記径方向の内側に向かって突出する凸部が形成され、
    　前記凸部には、前記直線部の第１方向端部分が接触し、
    　前記凸部よりも第２方向側では、前記コネクタハウジングの前記径方向の内側面と前記直線部とが離れていることを特徴とする請求項２または３記載のモータ。     On the inner side surface in the radial direction of the connector housing, a convex portion protruding toward the inner side in the radial direction is formed,
    A first direction end portion of the linear portion is in contact with the convex portion,
    4. The motor according to claim 2, wherein the radially inner side surface of the connector housing and the linear portion are separated on the second direction side from the convex portion. 5.
  5. 　前記連結部は、直線状に形成され、
    　前記コネクタハウジングの第２方向側の端面には、前記連結部を案内するガイド部が形成されていることを特徴とする請求項１から４のいずれかに記載のモータ。     The connecting portion is formed in a straight line,
    5. The motor according to claim 1, wherein a guide portion that guides the connecting portion is formed on an end surface of the connector housing on the second direction side.
  6. 　複数の前記駆動用コイル、複数の前記絶縁部材および前記ステータコアの少なくとも第１方向側および外周側を覆う樹脂製の樹脂封止部材を備え、
    　前記樹脂封止部材によって、前記コネクタハウジングからの第２方向側への前記端子ピンの抜けが防止されていることを特徴とする請求項１から５のいずれかに記載のモータ。     A plurality of the drive coils, a plurality of the insulating members, and a resin-made resin sealing member that covers at least the first direction side and the outer peripheral side of the stator core;
    6. The motor according to claim 1, wherein the terminal pin is prevented from coming off from the connector housing in the second direction by the resin sealing member.
  7. 　前記ステータコアは、前記ステータコアの外周面を構成する環状の外周環部を備え、
    　複数の前記突極部は、前記外周環部から前記径方向の内側に向かって突出し、
    　前記ステータは、前記絶縁部材と前記コネクタハウジングとを繋ぐ接続部を備え、
    　前記接続部は、前記外周環部の第１方向側の端面に接触するとともに前記外周環部の外周面の第１方向側部分に接触していることを特徴とする請求項１から６のいずれかに記載のモータ。     The stator core includes an annular outer peripheral ring portion that constitutes an outer peripheral surface of the stator core,
    The plurality of salient pole portions protrude from the outer peripheral ring portion toward the inside in the radial direction,
    The stator includes a connecting portion that connects the insulating member and the connector housing;
    The said connection part is contacting the 1st direction side part of the outer peripheral surface of the said outer periphery ring part while contacting the end surface by the side of the 1st direction of the said outer periphery ring part, The any one of Claim 1 to 6 characterized by the above-mentioned. The motor according to Crab.
  8. 　前記ステータは、前記絶縁部材と前記コネクタハウジングとを繋ぐ接続部を備え、
    　前記接続部には、前記導線を前記第２端子部へ案内する導線ガイド部が形成されていることを特徴とする請求項１から７のいずれかに記載のモータ。     The stator includes a connecting portion that connects the insulating member and the connector housing;
    The motor according to any one of claims 1 to 7, wherein a conductor guide portion that guides the conductor to the second terminal portion is formed in the connection portion.
  9. 　前記ステータは、前記絶縁部材と前記コネクタハウジングとを繋ぐ接続部を備え、
    　前記絶縁部材と前記コネクタハウジングと前記接続部とは一体で形成され、
    　前記接続部には、前記軸方向で前記接続部を貫通するとともに、前記第２端子部の第２方向側部分が配置される貫通穴が形成されていることを特徴とする請求項１から８のいずれかに記載のモータ。     The stator includes a connecting portion that connects the insulating member and the connector housing;
    The insulating member, the connector housing, and the connection portion are integrally formed,
    The through-hole in which the 2nd direction side part of the said 2nd terminal part is arrange | positioned while the said connection part penetrates the said connection part in the said axial direction is formed. The motor in any one of.
  10. 　前記ステータコアは、前記ステータコアの外周面を構成する環状の外周環部を備え、
    　複数の前記突極部は、前記外周環部から前記径方向の内側に向かって突出するとともに前記ロータの周方向において一定の間隔で配置され、
    　前記外周環部は、複数の前記突極部と同じ数の外周部によって構成され、
    　複数の前記外周部は、前記周方向に配列されるとともに、複数の前記外周部のそれぞれに、１個の前記突極部が繋がっており、
    　前記周方向における前記外周部の境界の１箇所には、つなぎ目が形成され、
    　前記周方向における前記外周部の境界のうちの前記つなぎ目が形成される１箇所を除いた残りの箇所には、前記周方向における前記外周部の外側端同士を繋ぐコア接続部が形成され、
    　前記ステータは、前記絶縁部材と前記コネクタハウジングとを繋ぐ接続部を備え、
    　前記コネクタハウジングと前記接続部とは一体で形成され、
    　前記接続部には、前記絶縁部材に係合可能なコネクタ側係合部が形成され、
    　複数の前記絶縁部材のそれぞれに、前記コネクタ側係合部が係合可能な絶縁部材側係合部が形成されていることを特徴とする請求項１から８のいずれかに記載のモータ。     The stator core includes an annular outer peripheral ring portion that constitutes an outer peripheral surface of the stator core,
    The plurality of salient pole portions project from the outer peripheral ring portion toward the inside in the radial direction and are arranged at a constant interval in the circumferential direction of the rotor,
    The outer peripheral ring portion is configured by the same number of outer peripheral portions as the plurality of salient pole portions,
    The plurality of outer peripheral portions are arranged in the circumferential direction, and one salient pole portion is connected to each of the plurality of outer peripheral portions,
    A joint is formed at one place on the boundary of the outer peripheral portion in the circumferential direction,
    The core connection part that connects the outer ends of the outer peripheral part in the circumferential direction is formed in the remaining part of the boundary of the outer peripheral part in the circumferential direction except the one part where the joint is formed,
    The stator includes a connecting portion that connects the insulating member and the connector housing;
    The connector housing and the connection portion are integrally formed,
    A connector-side engagement portion that can be engaged with the insulating member is formed in the connection portion,
    9. The motor according to claim 1, wherein an insulating member side engaging portion capable of engaging with the connector side engaging portion is formed in each of the plurality of insulating members.
  11. 　前記絶縁部材側係合部は、前記絶縁部材の第１方向側へ突出するとともに前記周方向において間隔をあけた状態で配置される２個の突起部であり、
    　前記コネクタ側係合部は、２個の前記突起部のそれぞれが嵌る２個の凹部であることを特徴とする請求項１０記載のモータ。     The insulating member side engaging portion is two protrusions that protrude toward the first direction side of the insulating member and are disposed in a spaced state in the circumferential direction,
    The motor according to claim 10, wherein the connector side engaging portion is two concave portions into which the two protruding portions are fitted.
  12. 　請求項１から１１のいずれかに記載のモータと、前記ロータの回転軸に固定される羽根車とを備えることを特徴とするポンプ装置。 A pump device comprising: the motor according to any one of claims 1 to 11; and an impeller fixed to a rotation shaft of the rotor.
PCT/JP2018/004137 2017-02-14 2018-02-07 Motor and pump device WO2018150964A1 (en)

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