JP2014050238A - Rotary electric machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotary electric machine capable of preventing terminals on terminal blocks from coming into contact with each other, making the terminal blocks smaller and more light-weight, and reducing the number of man-hours required for assembly.SOLUTION: A terminal block 24 constituting a rotary electric machine 10 has a housing section 38 to which first-third connection terminals 18, 20, 22 are connected, and a pair of protrusions 52a, 52b which protrude toward the side of the first-third connection terminals 18, 20, 22 relative to side wall sections 50a, 50b are formed respectively on first-third terminal housing sections 40, 42, 44 of the housing section 38. The protrusions 52a, 52b are formed to face a connection section 60 which connects a plurality of coils 30 at the first-third connection terminals 18, 20, 22, and regulate rotation displacement in a prescribed inclined angle, as a result of the connection section 60 coming into contact with the protrusion 52a(52b) when the protrusions 52a, 52b perform rotation displacement due to conclusion of the first-third connection terminals 18, 20, 22.

Description

  The present invention relates to a rotating electrical machine having a terminal block for connecting an external power line and a conductive wire to each other.

  Conventionally, a rotating electrical machine (for example, a motor) that rotates a rotor provided at the center of the stator by generating a rotating magnetic field by a plurality of coils wound around a slot of the stator is known. Such a rotating electrical machine has a three-phase power supply line for supplying power to a conducting wire such as a coil, and includes a terminal block for connecting the power supply line and a power source. The terminal block is electrically connected by being fastened with fastening bolts to a bus bar or the like in which terminals connected to the power supply line or the conductive wire are arranged in parallel.

  When the fastening bolts are rotated and fastened, the terminals described above may rotate at a predetermined angle together with the fastening bolts. When a plurality of terminals, conductors, etc. are arranged adjacent to each other, they are rotated adjacent to each other. The terminals may come into contact with each other and short-circuit, or the terminals may not be fixed in place.

  Therefore, in order to prevent such rotation of the terminal, for example, in the connector disclosed in Patent Document 1, a detent member is provided at the end of the electric wire, and the detent member is formed in the housing of the terminal block. By engaging with the groove portion, rotation about the axis of the electric wire is prevented, and accordingly, rotation of the terminal fitting connected to the electric wire is prevented.

Japanese Patent No. 4729416

  However, the anti-rotation member described above is provided on the outer peripheral side of the electric wire and is formed in a ring shape. On the other hand, a groove portion to be engaged with the anti-rotation member needs to be formed on the inner wall surface of the housing. Therefore, there is a problem that the housing is increased in size and weight. Moreover, since it is necessary to assemble | attach an anti-rotation member with respect to an electric wire, an assembly man-hour will increase.

  The present invention has been made in consideration of the above-described problems, and it is possible to reduce the size and weight of the terminal block and reduce the number of assembling steps while preventing a plurality of terminals from contacting each other in the terminal block. An object of the present invention is to provide a possible rotating electrical machine.

In order to achieve the above object, the present invention is connected to a stator around which a conducting wire is wound, a plurality of lead wires for taking out the conducting wire to the outside, and a connection portion to the lead wire, respectively. A rotating electric machine having a plurality of terminals and a terminal block on which the terminals are arranged,
The terminal block has a plurality of terminal accommodating portions in which the terminals are accommodated and separated from each other by a partition, and the partition is formed with a convex portion that protrudes toward the terminal and faces the connection portion. It is characterized by that.

  According to the present invention, in the rotating electrical machine in which the terminal to which the lead wire is connected through the connecting portion is connected to the terminal block, the partition is provided in each terminal accommodating portion in which the terminal is accommodated, A convex portion protruding toward the terminal side is formed to face the connection portion. Then, when the terminal is connected to the terminal block and fastened, the turning operation is restricted by the contact of the terminal, which is turned along with the fastening work, with the convex portion.

  Accordingly, since the rotational displacement of the terminals can be regulated to be within a predetermined range by the convex portion, it is possible to surely prevent the adjacent terminals from coming into contact with each other, and as in the prior art. Compared with the case where the non-rotating member is provided as a separate member, the number of parts can be reduced, and the size and weight can be reduced and the number of assembling steps can be reduced. Further, by restricting the rotation operation of the terminal by the convex portion, the terminal can be prevented from coming into direct contact with the partition wall, and damage to the partition wall can be prevented.

  Further, by providing the convex portion at a position facing the connection portion in the terminal accommodating portion, for example, when the terminal is fastened to the terminal block, compared to the case where the convex portion is disposed at a position facing the vicinity of the terminal, the Since the load applied to the convex portion can be reduced, the convex portion can be reduced in size, and accordingly, the terminal block can be reduced in size and weight.

  Further, the connecting portion is arranged so that the end portion on the stator side along the longitudinal direction of the lead line is on the stator side with respect to the end portion on the stator side in the protruding portion, and the protruding portion is When there are curved portions at both ends along the extending direction of the partition wall, and the radius of one curved portion formed at the end on the stator side is set larger than the radius of the other curved portion Good. As a result, when the terminal is fastened to the terminal block, when the connection part is brought into contact with the convex part by turning around the terminal, the end part (corner part) of the connection part is brought into the convex part. The side surface of the connecting portion can be brought into contact with the convex portion without coming into contact with the convex portion. On the other hand, when the side surface of the connecting portion comes into contact with the convex portion, the other curve having a large radius is provided. It is possible to disperse and relieve stress concentration by contacting the portion. As a result, it is not necessary to increase the size of the convex portion, and damage to the convex portion can be prevented, and therefore the terminal block including the convex portion can be further reduced in size and weight.

  Furthermore, the lead wire is configured by bundling a plurality of conducting wires, and has a bundling portion that is inclined at a predetermined angle so as to gradually become narrower in a direction away from the connection portion. The angle is preferably set to be larger than the rotation angle of the terminal when the terminal is rotated from the state in which the terminal is disposed at the center in the terminal accommodating portion until it abuts on the convex portion. Thereby, even when the terminal is fastened to the terminal block, even if it is rotated until it comes into contact with the convex portion, it can be arranged so that the separation distance between the bundled portions of the adjacent terminals gradually increases. Even when the insulation film of the conducting wire constituting the bundle portion is peeled off when connecting the lead wire and the terminal, a short circuit can be reliably avoided because a sufficient insulation distance is secured.

  Still further, the lead wire may be housed in an insulating cylinder on the stator side with respect to the connecting portion, and the stator side end of the partition wall may be disposed on the terminal side with respect to the end of the cylinder. Thereby, since the material required when manufacturing a terminal block having a partition wall can be reduced, the terminal block can be reduced in size and weight, and the manufacturing cost can be reduced. Furthermore, even when the length of the partition wall is shortened to the terminal side in this way, it is possible to reliably ensure insulation between a plurality of terminals arranged adjacent to each other.

  According to the present invention, the following effects can be obtained.

  That is, in the terminal block, each of the terminal accommodating portions in which the terminals are accommodated is provided with a partition wall, and the partition wall is provided with a projecting portion protruding toward the terminal side so as to face the connection portion. When the terminal is connected to the terminal block and fastened, the turning operation can be restricted by bringing the terminal that has been turned along with the fastening work into contact with the convex portion. As a result, the rotational displacement of the terminals can be regulated so as to be within a predetermined range by the convex portion, so that it is reliably avoided that adjacent terminals are in contact with each other as in the prior art. Compared with the case where the anti-rotation member is provided as a separate member, the size and weight can be reduced and the number of assembling steps can be reduced.

  Further, by providing the convex portion at a position facing the connection portion in the terminal accommodating portion, for example, when the terminal is fastened to the terminal block, compared to the case where the convex portion is disposed at a position facing the vicinity of the terminal. Since the load applied to the convex portion can be reduced, the convex portion can be reduced in size, and accordingly, the terminal block can be reduced in size and weight.

It is an external appearance front view which shows the state in which the rotary electric machine which concerns on embodiment of this invention was accommodated in the motor case. It is an expansion perspective view which shows the terminal block vicinity in the rotary electric machine of FIG. It is an enlarged front view which shows the terminal block vicinity of FIG. It is an enlarged front view which shows the state which the 1st-3rd connection terminal rotated at the time of fastening, and contacted the convex part in the terminal block of FIG. FIG. 5 is an enlarged front view showing a state in which, in the terminal block of FIG.

  DESCRIPTION OF EMBODIMENTS Preferred embodiments of a rotating electrical machine according to the present invention will be given and described in detail below with reference to the accompanying drawings. In FIG. 1, reference numeral 10 indicates a rotating electrical machine according to an embodiment of the present invention.

  The rotating electrical machine 10 is, for example, a three-phase AC brushless motor, and as shown in FIG. 1, an annular stator 12, a rotor 14 inserted through the center of the stator 12, a U-phase terminal, V A terminal block 24 for connecting the three-phase first to third connection terminals 18, 20, and 22 including a phase terminal and a W-phase terminal and a power source (not shown) to each other is included. In the rotating electrical machine 10, the rotor 14 is driven to rotate based on electric power supplied from a power source (not shown) through the first to third connection terminals 18, 20, and 22.

  The rotating electrical machine 10 is accommodated in an annular motor case 26, and the stator 12 is fixed to the motor case 26 with bolts 28.

  For example, the stator 12 is integrally held by caulking, welding, or the like in a state where a plurality of steel plates are laminated in the axial direction and connected to each other. The stator 12 has a plurality of coils (conducting wires) 30 mounted in its slots, and the coils 30 are grouped for each of the three phases, and the three-phase first to third connection terminals 18, 20, 22 are formed as lead wires 31. Connected to.

  The motor case 26 described above is connected to the first to third connection terminals 18, 20, 22 and a power control unit (PDU) for controlling the amount of power supplied from the power source (not shown) to the rotating electrical machine 10. A terminal block 24 for connecting to a terminal (not shown) is provided.

  As shown in FIGS. 1 to 3, the terminal block 24 has a body 32 that is mounted inside a motor case 26, and a bus rod (not shown) is provided inside the body 32. The bus rod is electrically connected to a power control unit (not shown) by a cable.

  As shown in FIGS. 2 to 5, the body 32 is formed of, for example, a resin material that is a non-conductive material, and is used for fixing a set to a set of collars (not shown) inserted in the body 32. A base part 36 fixed to the motor case 26 by inserting the bolt 34 and the base part 36 project, and the three-phase first to third connection terminals 18, 20, 22 are accommodated and held. The accommodating part 38 is provided.

  The base portion 36 is formed in a substantially rectangular shape having a predetermined width, and a set of fixing bolts 34 (see FIG. 1) is provided in holes formed at both end portions along the width direction (arrow A direction). The fixing bolt 34 is screwed into a screw hole (not shown) with the base portion 36 being in contact with the inner wall surface of the motor case 26. As a result, the terminal block 24 is fixed inside the motor case 26 via the base portion 36.

  The accommodating portion 38 includes first to third terminal accommodating portions 40, 42, 44 provided in parallel along the width direction (arrow A direction) of the base portion 36. The first to third terminal accommodating portions 40, 42, 44 have partition walls 40 a, 42 a, 44 a each having a substantially U-shaped cross section, and are arranged in parallel in the width direction (arrow A direction) of the base portion 36. Three of them are provided and open in a direction perpendicular to the width direction (arrow A direction) (arrow B1 direction), and the opening 46 is formed on the stator 12 side (arrow B1 direction). Each of the partition walls 40a, 42a, 44a includes a cover portion 48 formed in a semicircular cross section and side wall portions 50a, 50b extending linearly from both ends of the cover portion 48. One side wall portion 50a and the other side wall part 50b are formed in parallel with a predetermined distance from each other.

  In addition, the side wall part 50b of the 1st terminal accommodating part 40 and the side wall part 50a of the 2nd terminal accommodating part 42 adjacent are formed integrally, and the 3rd terminal adjacent to the side wall part 50b of the said 2nd terminal accommodating part 42 is formed. The side wall part 50a of the accommodating part 44 is integrally formed.

  A pair of convex portions 52a and 52b projecting at a predetermined height toward the opposite side wall portions 50a and 50b are formed at the end portions of the respective side wall portions 50a and 50b. The convex portions 52a and 52b are formed in a substantially rectangular shape in cross section, and are formed at positions facing the connection portions 60 (described later) in the first to third connection terminals 18, 20, and 22. Specifically, the convex portions 52 a and 52 b are formed at positions facing both side surfaces of the connection portion 60.

  In addition, the convex portions 52a and 52b are formed with a first curved portion 54 formed in a circular arc shape at one end on the cover portion 48 side (arrow B2 direction), and the first to third terminal accommodating portions 40, A second curved portion 56 formed in an arc shape in cross section is formed at the other end portion on the opening 46 side (arrow B1 direction) of 42 and 44. As shown in FIG. 3, the radius R2 of the second curved portion 56 is set larger than the radius R1 of the first curved portion 54 (R2> R1).

  That is, the first to third terminal accommodating portions 40, 42, 44 are set in quantities according to the three-phase first to third connection terminals 18, 20, 22, and the first to third terminal accommodating portions 40 are configured. , 42 and 44, a through hole (not shown) is formed at a position substantially coaxial with the cover portion 48 so as to penetrate the base portion 36.

  Then, the first to third connection terminals 18, 20, and 22 are inserted into the accommodating portions 38 separated by the first to third terminal accommodating portions 40, 42, and 44, respectively. , 20 and 22 are led out downward (in the direction of arrow B1) through the opening 46. Thus, the 1st-3rd terminal accommodating parts 40, 42, and 44 are provided in order to prevent the short circuit by the adjacent 1st-3rd connection terminals 18, 20, and 22 mutually contacting.

  The first to third connection terminals 18, 20, and 22 are formed at a fastening portion 58 formed in a flat plate shape and an end portion of the fastening portion 58, and end portions of the plurality of coils 30 are connected by fusing. The plurality of coils 30 are taken out of the stator 12 and then inserted into an insulating sleeve 62 formed in a tube shape with a non-conductive material and wired to the connection portion 60. A fastening hole 64 into which the fastening bolt 66 is inserted is formed in the fastening portion 58 at a substantially central portion, and the fastening bolt 66 inserted into the fastening hole 64 in a state where the fastening portion 58 is in contact with the base portion 36. Is screwed into a bus rod (not shown) through a through hole, whereby the first to third connection terminals 18, 20, and 22 are electrically connected to the bus rod. Further, the bus rod is electrically connected to a three-phase cable (not shown), and the three-phase cable is connected to a drive circuit (inverter) (not shown), whereby electric power is supplied to the plurality of coils 30.

  The connecting portion 60 is electrically connected by caulking the ends of the lead wires 31 formed of the plurality of coils 30, and the lead wires 31 bundled by the connecting portion 60 are connected to the end portions of the insulating sleeve 62 from the end portions of the insulating sleeve 62. The bundling portion 68 exposed to the outside is formed only up to the connection portion 60. The bundling portion 68 has an approximately cross-sectional shape so that the end portion of the lead wire 31 is crimped by the connecting portion 60 so that the width gradually becomes narrower from the connecting portion 60 toward the end portion side (arrow B1 direction). It is formed in a triangular shape. The width dimension of the connection portion 60 is formed to be substantially the same as or slightly smaller than the width dimension of the connection portion 60.

  Further, as shown in FIG. 3, the bundling portion 68 is inclined by a predetermined angle θ1 with respect to a center line L1 whose outer edge portion passes through the centers of the fastening portion 58, the connecting portion 60 and the insulating sleeve 62, and the insulating sleeve. 62 extends toward the connecting portion 60.

  Further, the connection portion 60 has an end on the insulating sleeve 62 side (in the direction of arrow B1), the end of the convex portions 52a and 52b on the opening 46 side (in the direction of arrow B1), the insulating sleeve 62 side, That is, it arrange | positions so that it may become the stator 12 side (arrow B1 direction).

  The rotating electrical machine 10 according to the embodiment of the present invention is basically configured as described above. Next, the first to third connection terminals 18, 20 with respect to the accommodating portion 38 of the terminal block 24. , 22 will be described.

  First, in a state where the body 32 of the terminal block 24 is fixed to the inner wall surface of the motor case 26 in advance, the fastening portion 58 of the first to third connection terminals 18, 20, 22 is connected to the base portion 36 of the housing portion 38. After abutting and arranging the fastening hole 64 coaxially with a through hole (not shown), the fastening bolt 66 is inserted through the fastening hole 64 and the through hole. Then, by rotating the fastening bolt 66 clockwise (in the direction of arrow C1) with a tool (not shown), the fastening bolt 66 is screwed into a bus rod (not shown).

  By further rotating the fastening bolt 66 clockwise with a tool, the fastening portion 58 is fixed by the fastening bolt 66 in contact with the base portion 36, and includes first to third connection terminals including the fastening portion 58. 18, 20, 22 and a bus rod (not shown) are electrically connected. At this time, the fastening bolt 66 is tightened with a tool (not shown) with a predetermined tightening torque.

  At this time, as shown in FIG. 4, each fastening portion 58 is integrally rotated clockwise (in the direction of the arrow C <b> 1) with the fastening hole 64 as the center under the contact action with the fastening bolt 66 when fastening with the fastening bolt 66. The connecting portion 60 comes into contact with the convex portion 52a provided on the left side of each fastening portion 58, so that further rotational displacement is restricted. The fastening portion 58 and the connecting portion 60 (the center line L1 thereof) are tilted by a predetermined angle θ2 with respect to the center line L2 passing through the center in the width direction in the housing portion 38 and stopped.

  As a result, the first to third connection terminals 18, 20, and 22 including the fastening portion 58 and the connection portion 60 are fixed in a state where the first and third connection terminals 18, 20, and 22 are inclined by a predetermined angle θ <b> 2 with respect to the axis of each storage portion 38. .

  At this time, the first to third connection terminals 18, 20, 22 are in the same direction in the accommodating portion 38 because the rotation direction of each fastening bolt 66 accompanying the fastening of the fastening portion 58 is the same direction (arrow C <b> 1 direction). Inclined and in a substantially parallel state, the mutual separation distance S1 does not substantially change along the longitudinal direction, so that there is no contact and short circuit. In other words, the insulation distance S1 required between the adjacent first to third connection terminals 18, 20, and 22 is ensured.

  On the other hand, for example, when only the first connection terminal 18 is to be removed from the above-described first to third connection terminals 18, 20, 22, the fastening bolt 66 is counterclockwise using a tool (not shown). By rotating around (in the direction of arrow C2), the fastening state of the fastening portion 58 by the fastening bolt 66 is loosened. At this time, as shown in FIG. 5, the fastening portion 58 of the first connection terminal 18 rotates together with the fastening bolt 66 counterclockwise (in the direction of the arrow C <b> 2) around the fastening hole 64, and accordingly, the connection is made. The part 60 and the insulating sleeve 62 are integrally rotated around the fastening part 58 in a direction approaching the second connection terminal 20.

  And the connection part 60 of the 1st connection terminal 18 contact | abuts to the convex part 52b formed in the right side wall part 50b used as the 2nd connection terminal 20 side, The rotation displacement is controlled, The accommodating part 38 The fastening portion 58 and the connecting portion 60 (the center line L1) thereof are stopped in a state where they are inclined by a predetermined angle θ3 toward the second connecting terminal 20 with respect to the center line L2.

  Thereafter, the fastening bolt 66 is removed, and the fastening portion 58 is detached from the base portion 36, whereby the removal operation of the first connection terminal 18 is completed. The first to third connection terminals 18, 20, and 22 are provided at the center in the width direction of the first to third terminal housing portions 40, 42, and 44, and the convex portions 52a and 52b are also formed in the same shape. Therefore, the maximum inclination angle θ2 when the first to third connection terminals 18, 20, 22 are rotated clockwise (in the direction of the arrow C1) and the first to third connection terminals 18, 20, The maximum inclination angle θ3 when 22 rotates counterclockwise (arrow C2 direction) is substantially the same angle (θ2≈θ3).

  In this way, even when only one adjacent connection terminal is rotated in the direction in which the fastening bolt 66 is rotated in the opposite direction and is brought close to each other, the connection terminals are brought into contact with each other by contacting the convex portions 52b (52a). Insulation distance (separation distance) S2 required between the two can be ensured.

  In addition, the maximum rotation angles θ2 and θ3 of the first to second connection terminals 18 and 20 described above are all relative to the inclination angle θ1 of the bundle portion 68 in the first to third connection terminals 18, 20 and 22. It is set small (θ2, θ3 <θ1). Therefore, even when the first to third connection terminals 18, 20, and 22 are rotated until they abut on the convex portions 52 a and 52 b (maximum rotation angle), the separation distance between the bundle portions 68 of the adjacent connection terminals is gradually increased. Therefore, even if the insulating film of the coil 30 constituting the bundle portion 68 is peeled off, a short circuit can be avoided because a sufficient insulating distance is secured.

  As described above, in the present embodiment, in the terminal block 24 constituting the rotating electrical machine 10, the first to third terminals are respectively provided in the accommodating portions 38 in which the first to third connection terminals 18, 20, 22 are arranged. The housing portions 40, 42, 44 are provided, and the side wall portions 50 a, 50 b of the first to third terminal housing portions 40, 42, 44 are connected to the first to third connection terminals 18, 20, 22. A set of convex portions 52 a and 52 b is provided at a position facing 60.

  Even when the first to third connection terminals 18, 20, 22 are fastened, even when the first to third connection terminals 18, 20, 22 are rotated together with the fastening bolts 66 when the fastening is released. The first and third connection terminals 18, 20, and 22 have a rotational displacement within a predetermined range by bringing the connection portion 60 into contact with the convex portions 52 a and 52 b, that is, adjacent first to third connection terminals. Rotation can be prevented so that 18, 20, and 22 do not contact each other.

  That is, the first to third connection terminals 18, 20, and 22 are prevented from rotating by providing the convex portions 52 a and 52 b in the first to third terminal housing portions 40, 42, and 44 constituting the terminal block 24. Accordingly, the body 32 having the convex portions 52a and 52b can be reduced in size and weight, and accordingly, the terminal block 24 can be reduced in size and weight.

  Further, convex portions 52 a and 52 b that restrict the rotation of the first to third connection terminals 18, 20, and 22 are formed integrally with the first to third terminal housing portions 40, 42, and 44 of the body 32. Therefore, for example, compared with the prior art in which the anti-rotation member is provided separately, the number of parts can be reduced and the number of assembling steps can be reduced.

  Furthermore, since the convex portions 52a and 52b are provided at positions where the connection portions 60 of the first to third connection terminals 18, 20, and 22 can abut, for example, the convex portions 52a and 52b are provided in the vicinity of the fastening portion 58. When the first to third connection terminals 18, 20, 22 are fastened by the fastening bolts 66, the reaction force of the tightening torque applied to the convex portions 52 a, 52 b is compared with the case where the bolts are arranged at positions facing each other. It can be made smaller. As a result, the projections 52a and 52b can be reduced in size, and the body 32 having the projections 52a and 52b can be further reduced in size and weight.

  In other words, the first to third connection terminals 18, 20, and 22 can secure a large distance from the fastening hole 64 that is the fastening portion 58 to the portion that contacts the convex portions 52a and 52b. The reaction force of the tightening torque applied to 52b can be reduced.

  Further, the first to third connection terminals 18, 20, and 22 do not directly contact the partition walls 40a, 42a, and 44a, but contact the convex portions 52a and 52b formed on the partition walls 40a, 42a, and 44a. Therefore, the partition walls 40a, 42a, 44a can be prevented from being damaged by the first to third connection terminals 18, 20, 22.

  Furthermore, in the convex portions 52a and 52b, the radius R2 of the second bending portion 56 formed on the other end side (arrow B1 direction) is set to the first bending portion 54 formed on the one end portion side (arrow B2 direction). The second curved portion 56 having a large radius is formed when the connecting portion 60 in the first to third connecting terminals 18, 20, 22 abuts against the convex portions 52a, 52b. It is possible to disperse and relieve the stress concentration by abutting against. As a result, it is not necessary to enlarge the convex portions 52a and 52b, and damage to the convex portions 52a and 52b can be prevented.

  Furthermore, the connection part 60 in the first to third connection terminals 18, 20, and 22 has an end on the insulating sleeve 62 side (in the direction of arrow B 1), and the opening 46 side (in the direction of arrow B 1 in the protrusions 52 a and 52 b). ), The first to third connection terminals 18, 20, 22 rotate around the fastening portion 58, and the connection portion 60 is a convex portion. When abutting 52a and 52b, it is avoided that the end portions (corner portions) of the connection portion 60 abut against the convex portions 52a and 52b, and the side surfaces of the connection portion 60 are abutted. it can. Therefore, stress concentration on the convex portions 52a and 52b can be suppressed, and damage can be avoided while suppressing an increase in the size of the convex portions 52a and 52b.

  Further, the end portions of the side wall portions 50a, 50b in the first to third terminal housing portions 40, 42, 44 are connected to the fastening portion 58 side (arrow B2) with respect to the end portions of the insulating sleeve 62 in which the plurality of coils 30 are housed. The material (for example, resin material) required for the body 32 having the first to third terminal accommodating portions 40, 42, and 44 can be reduced. The size and weight can be reduced, and the manufacturing cost can be reduced. Furthermore, even when the length of the side wall portions 50a and 50b is shortened toward the cover portion 48 (in the direction of arrow B2), the insulating properties of the first to third connection terminals 18, 20, and 22 are reliably ensured. Can be secured.

  In the present embodiment described above, convex portions 52a and 52b are provided in the accommodating portion 38 of the body 32 to which the first to third connection terminals 18, 20, and 22 are connected, and the convex portions 52a and 52b are provided. Although it is set as the structure which can contact the connection part 60 of the said 1st-3rd connection terminals 18, 20, and 22, it is not limited to this, For example, the said 1st-3rd connection terminals 18, 20, 22 may be provided with a protrusion protruding in the width direction (arrow A direction). Accordingly, when the first to third connection terminals 18, 20, and 22 are rotated together, the convex portions come into contact with the side wall portions 50 a and 50 b of the housing portion 38 to restrict the rotation, and thus the first. The contact between the third connection terminals 18, 20, and 22 can be prevented.

  In addition, the rotating electrical machine according to the present invention is not limited to the above-described embodiment, and it is needless to say that various configurations can be adopted without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 10 ... Rotating electrical machine 12 ... Stator 14 ... Rotor 18 ... 1st connection terminal 20 ... 2nd connection terminal 22 ... 3rd connection terminal 24 ... Terminal block 30 ... Coil 31 ... Lead wire 32 ... Body 38 ... Housing part 40 ... 1st Terminal housing parts 40a, 42a, 44a ... partition wall 42 ... second terminal housing part 44 ... third terminal housing part 46 ... opening 48 ... cover part 50a, 50b ... side wall parts 52a, 52b ... convex part 58 ... fastening part 60 ... Connection part 62 ... Insulating sleeve 66 ... Fastening bolt 68 ... Bundling part

Claims (4)

A stator around which a conducting wire is wound, a plurality of lead wires for taking out the conducting wire to the outside, a plurality of terminals respectively connected to the lead wire via a connecting portion, and a terminal on which the terminals are arranged A rotating electric machine having a table,
The terminal block has a plurality of terminal accommodating portions in which the terminals are accommodated and separated from each other by a partition, and the partition is formed with a convex portion that protrudes toward the terminal and faces the connection portion. Rotating electric machine characterized by that. The rotating electrical machine according to claim 1, wherein
The connecting portion is disposed such that an end portion on the stator side along the longitudinal direction of the lead line is on the stator side with respect to the end portion on the stator side in the convex portion, and the convex portion is The curved portion is provided at both ends along the extending direction of the partition wall, and the radius of one curved portion formed at the end on the stator side is set larger than the radius of the other curved portion. Rotating electric machine characterized by being made. In the rotating electrical machine according to claim 1 or 2,
The lead wire is configured by bundling a plurality of the conducting wires, and has a bundling portion that is inclined at a predetermined angle so as to gradually become narrower in a direction away from the connection portion. The rotation is characterized in that the angle is set to be larger than the rotation angle of the terminal when it is rotated from the state where the terminal is arranged at the center of the terminal accommodating portion to the contact with the convex portion. Electric. In the rotating electrical machine according to claim 3,
The lead wire is accommodated in an insulating cylinder on the stator side with respect to the connecting portion, and the stator side end of the partition is disposed on the terminal side with respect to the end of the cylinder. Rotating electric machine characterized by that.

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