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WO2024122647A1 - Bobine de moteur, stator et moteur - Google Patents

Bobine de moteur, stator et moteur Download PDF

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Publication number
WO2024122647A1
WO2024122647A1 PCT/JP2023/044132 JP2023044132W WO2024122647A1 WO 2024122647 A1 WO2024122647 A1 WO 2024122647A1 JP 2023044132 W JP2023044132 W JP 2023044132W WO 2024122647 A1 WO2024122647 A1 WO 2024122647A1
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WO
WIPO (PCT)
Prior art keywords
conductive member
coil
stator
motor
conductor
Prior art date
Application number
PCT/JP2023/044132
Other languages
English (en)
Japanese (ja)
Inventor
友久 鈴木
Original Assignee
ミネベアミツミ株式会社
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
Priority claimed from JP2022196831A external-priority patent/JP2024082752A/ja
Priority claimed from JP2022198633A external-priority patent/JP2024084385A/ja
Priority claimed from JP2022198632A external-priority patent/JP2024084384A/ja
Application filed by ミネベアミツミ株式会社 filed Critical ミネベアミツミ株式会社
Publication of WO2024122647A1 publication Critical patent/WO2024122647A1/fr

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/18—Windings for salient poles
    • 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

Definitions

  • the present invention relates to a motor coil, a stator, and a motor.
  • the terminals of the coil are formed, for example, by bending the cut ends.
  • a technique for manufacturing a coil by cutting a conductive cylinder into a spiral shape a technique is known in which terminals are formed by cutting out protrusions or rods on both ends of the cylinder, or by further bending the terminals to form curved terminals.
  • the circuit terminal portion is formed by bending the ends of the rectangular wire formed by cutting the tubular conductor.
  • the objective is to provide a motor coil, a stator, and a motor that can easily form terminals on a coil with a large cross-sectional area.
  • a motor coil comprises a first conductor wound in the direction of a winding axis, and a second conductor connected to the first conductor.
  • the first conductor has a side surface extending in the circumferential direction around which the first conductor is wound, and a hole formed in the side surface. A portion of the second conductor is disposed within the hole.
  • terminals can be easily formed on coils with large cross-sectional areas.
  • FIG. 1 is a diagram illustrating an example of a motor according to a first embodiment.
  • FIG. 2 is an exploded perspective view showing an example of mounting the motor coil to the stator in the first embodiment.
  • FIG. 3 is a perspective view showing an example of a motor coil attached to a stator in the first embodiment.
  • FIG. 4 is a perspective view illustrating an example of a motor coil according to the first embodiment.
  • FIG. 5 is an exploded perspective view showing an example of a motor coil according to the first embodiment.
  • FIG. 6 is a perspective view illustrating an example of the second conducting wire in the first embodiment.
  • FIG. 7 is a perspective view illustrating an example of a motor according to the second embodiment.
  • FIG. 8 is an exploded perspective view showing an example of mounting the coil to the stator in the second embodiment.
  • FIG. 1 is a diagram illustrating an example of a motor according to a first embodiment.
  • FIG. 2 is an exploded perspective view showing an example of mounting the motor coil to the stator in the first
  • FIG. 9 is a perspective view showing an example of a coil attached to a stator in the second embodiment.
  • FIG. 10 is a perspective view illustrating an example of a coil according to the second embodiment.
  • FIG. 11 is a perspective view illustrating an example of a conductive member according to the second embodiment.
  • FIG. 12 is a plan view illustrating an example of a conductive member before processing in the second embodiment.
  • FIG. 13 is a perspective view showing an example of a coil to which a terminal is attached according to the second embodiment.
  • FIG. 14 is an exploded perspective view showing an example of a process of attaching a terminal to a coil in the second embodiment.
  • FIG. 15 is a perspective view showing an example of a coil in the first modified example.
  • FIG. 10 is a perspective view illustrating an example of a coil according to the second embodiment.
  • FIG. 11 is a perspective view illustrating an example of a conductive member according to the second embodiment.
  • FIG. 12 is a plan view illustrating an example of
  • FIG. 16 is a perspective view showing an example of a conductive member in the first modified example.
  • FIG. 17 is a top view showing an example of a coil attached to a stator in the first modified example.
  • FIG. 18 is a perspective view illustrating an example of a coil according to the third embodiment.
  • FIG. 19 is a perspective view illustrating an example of a conductive member according to the third embodiment.
  • FIG. 20 is an enlarged perspective view showing an example of an engagement mechanism in the third embodiment.
  • FIG. 21 is a plan view showing an example of a conductive member before processing in the third embodiment.
  • FIG. 22 is a plan view illustrating an example of a manufacturing process of the conductive member according to the third embodiment.
  • FIG. 23 is an exploded perspective view showing an example of a process of attaching a terminal to a coil in the third embodiment.
  • FIG. 24 is a plan view showing an example of a terminal-attached conductive member before processing in the second modified example.
  • FIG. 25 is a plan view showing another example of a terminal-attached conductive member before processing in the second modified example.
  • FIG. 26 is a perspective view showing an example of a terminal-attached coil according to the second modified example.
  • FIG. 27 is a perspective view showing an example of a conductive member in the third modified example.
  • FIG. 28 is an enlarged perspective view showing an example of an engagement mechanism in the third modified example.
  • FIG. 29 is a perspective view showing an example of a coil in the third modified example.
  • FIG. 24 is a plan view showing an example of a terminal-attached conductive member before processing in the second modified example.
  • FIG. 25 is a plan view showing another example of a terminal-attached conductive member before processing
  • FIG. 30 is a perspective view showing an example of a conductive member in the fourth modified example.
  • FIG. 31 is a perspective view showing an example of a conductive member in the fifth modified example.
  • FIG. 32 is a perspective view illustrating an example of a split core attached to a stator core in the fourth embodiment.
  • FIG. 33 is a perspective view illustrating an example of a split core according to the fourth embodiment.
  • FIG. 34 is a perspective view illustrating an example of a split core according to the fourth embodiment.
  • FIG. 35 is an exploded perspective view illustrating an example of a split core according to the fourth embodiment.
  • FIG. 36 is an exploded perspective view illustrating an example of a split core according to the fourth embodiment.
  • FIG. 37 is a perspective view showing an example of a split core in the sixth modified example.
  • FIG. 38 is an exploded perspective view showing an example of a split core according to the sixth modified example.
  • FIG. 39 is an exploded perspective view showing an example of a split core in the sixth modified example.
  • FIG. 40 is a perspective view showing an example of a process for attaching the coil to the housing in the seventh modified example.
  • FIG. 41 is a perspective view showing an example of a split core in the seventh modified example.
  • FIG. 42 is a cross-sectional perspective view showing an example of a split core in the seventh modified example.
  • FIG. 43 is a perspective view showing an example of a process for attaching the coil to the housing in the eighth modified example.
  • FIG. 44 is a perspective view showing an example of a coil accommodated in a housing in the eighth modified example.
  • FIG. 45 is an enlarged perspective view showing an example of an engagement portion of a coil accommodated in a housing in the eighth modified example.
  • each embodiment of the motor coil, stator, and motor disclosed in this application will be described in detail with reference to the drawings.
  • the drawings may also include parts with different dimensional relationships and ratios.
  • each drawing may show a coordinate system based on the circumferential, radial, and axial directions of the rotor, which will be explained later.
  • Fig. 1 is a diagram showing an example of a motor according to the first embodiment.
  • the motor 1 according to the first embodiment is a so-called inner rotor type motor in which a stator 80 is disposed radially outward of a rotor 91.
  • the motor 1 includes a stator 80, a rotor 91, and a shaft 99.
  • the stator 80 includes a coil 2, an insulator 83, and a stator core 81.
  • the stator core 81 is an annular member formed by stacking multiple layers of magnetic material, such as stainless steel or magnetic steel plate, in the axial direction.
  • FIG. 2 is an exploded perspective view showing an example of mounting a motor coil to a stator in the first embodiment. As shown in FIG. 2, the coil 2 is attached to the teeth 82 via an insulator 83. Note that the coil 2 is an example of a motor coil.
  • the insulator 83 is formed of an insulating material such as resin. As shown in FIG. 3, the insulator 83 is inserted into the teeth 82 while being surrounded by the coil 2.
  • FIG. 3 is a perspective view showing an example of a motor coil attached to a stator. In this case, the stator core 81 is surrounded by the coil 2 via the insulator 83.
  • the rotor 91 is rotatably mounted around the shaft 99, which is the rotation axis of the motor 1.
  • the rotor 91 includes the shaft 99, a rotor yoke (yoke), and a magnet (not shown).
  • the shaft 99 is a rotating shaft and is formed into a cylindrical shape at the innermost radial position of the rotor 91.
  • the rotor yoke is formed into a cylindrical shape from a magnetic material such as iron.
  • the inner peripheral surface of the rotor 91 is positioned so as to contact the outer peripheral surface of the shaft 99.
  • the coil 2 includes a first conductor 10 wound in the winding axis direction, and a second conductor 30 connected to the first conductor.
  • FIG. 4 is a perspective view showing an example of a motor coil in the first embodiment. As shown in FIG. 4, the first conductor 10 of the coil 2 is wound with the radial direction of the rotor 91 as the winding axis direction. Furthermore, the coil 2 in the first embodiment further includes a second conductor 40 connected to the first conductor 10.
  • the first conductor 10 of the coil 2 is formed by cutting out a conductor such as copper.
  • a conductor such as copper
  • the first conductor 10 shown in FIG. 4 is formed by making a spiral cut into a copper tube. After the cuts are made in the first conductor 10, an insulating coating is applied by electrochemical coating or the like. This insulates adjacent portions of the first conductor 10 in the winding axis direction from each other.
  • the first conductor 10 has side surfaces 15, 16, 17, and 18 extending in the circumferential direction in which the first conductor 10 is wound.
  • FIG. 5 is an exploded perspective view showing an example of a motor coil in the first embodiment.
  • side surface 15 is located on the positive axial side
  • side surface 17 is located on the negative axial side.
  • side surface 16 is located on one side in the circumferential direction
  • side surface 18 is located on the other side in the circumferential direction.
  • the first conductor 10 in the first embodiment has a cross-sectional area of, for example, 4 square mm or more. As shown in FIG. 5, for example, if the thickness W1 of the first conductor 10 in the winding axial direction is 1 mm, the thickness W2 in the axial direction is 4 mm to 6 mm.
  • the first conductor 10 has one end 11 and the other end 12 in the winding axial direction. As shown in FIG. 5, both the one end 11 and the other end 12 are located on the side surface 15 on the positive axial side.
  • the first conductor 10 also has holes 13 and 14 formed in the side surface 15. As shown in FIG. 5, the hole 13 is formed near one end 11, and the hole 14 is formed near the other end 12. In the first embodiment, the holes 13 and 14 have a substantially circular cross section with a diameter of, for example, about 0.8 mm.
  • the second conductor 30 is disposed in the hole 13 of the first conductor 10, and the second conductor 40 is disposed in the hole 14 of the first conductor 10.
  • the second conductor 30 is disposed near one end of the coil 2 in the winding axis direction
  • the second conductor 40 is disposed near the other end of the coil 2 in the winding axis direction.
  • FIG. 6 is a perspective view showing an example of a second conductor in the first embodiment. Note that while FIG. 6 shows second conductor 40, second conductor 30 also has a similar configuration, and therefore detailed description of second conductor 30 may be omitted below.
  • the second conductor 40 has one end 41 on the side of the first conductor 10, and the other end 42. Note that the one end 41 and the one end 31 described below are examples of a part of the second conductor.
  • One end 31 of the second conductor 30 is inserted into the hole 13 of the first conductor 10 from the positive axial side, and one end 41 of the second conductor 40 is inserted into the hole 14 of the first conductor 10 from the positive axial side.
  • one end 31 is in the hole 13, and one end 41 is in the hole 14. That is, parts of the second conductors 30 and 40 are disposed in the holes 13 and 14.
  • the one ends 31 and 41 have a cross section that is approximately the same as or slightly smaller than the cross-sectional diameter W3 of the holes 13 and 14.
  • the cross-sectional diameter W3 of the one ends 31 and 41 is about 0.7 mm in diameter.
  • One end 31 and 41 of the second conductor 30 is electrically connected to the first conductor 10. That is, one end 31 and 41 is at least partially uninsulated and is fixed by soldering to holes 13 and 14 of the first conductor 10. In this case, as shown in FIG. 1, the second conductors 30 and 40 extend in the direction of the rotation axis of the rotor 91.
  • the thickness W4 of the other end 42 of the second conductor 40 is, for example, larger than the diameter W3 of one end 41. Furthermore, at least a portion of the other end 42 of the second conductor 40 is not insulated. In this case, the other end 42 serves as a terminal for connecting to an external device. This eliminates the need to process the end of the first conductor 10 to make it into a connection terminal, improving workability when forming the connection terminal.
  • the second conductors 30, 40 which serve as the connection terminals, are thick.
  • the other ends 32, 42 of the second conductors 30, 40 can be made thicker than the thickness W1 of the first conductor 10. For example, if the thickness W1 of the first conductor 10 in the winding axis direction is 1 mm, the thickness W4 of the other ends 32, 42 of the second conductors 30, 40 can be made 2 mm or more.
  • the motor coil 2 in the first embodiment includes the first conductor 10 wound in the winding axis direction, and the second conductors 30, 40 connected to the first conductor 10.
  • the first conductor 10 includes side surfaces 15, 16, 17, 18 extending in the circumferential direction in which the first conductor 10 is wound, and holes 13, 14 formed in the side surface 15.
  • a part 31 of the second conductor 30 is disposed in the hole 13.
  • the stator 80 in the first embodiment includes the motor coil 2, an insulator 83, and a stator core 81 surrounded by the motor coil 2 via the insulator 83.
  • the motor 1 in the first embodiment includes a rotor 91, and the second conductors 30, 40 extend in the direction of the rotation axis of the rotor 91. With this configuration, terminals can be easily formed on a coil having a large cross-sectional area.
  • the second conductors 30, 40 may be oriented in other directions, such as the radial or circumferential direction of the rotor 91, rather than the axial direction of the rotor 91.
  • the second conductors 30, 40 may also have bent portions or curved shapes.
  • the second conductors 30 and 40 may also have shapes different from each other.
  • the second conductors 30, 40 may also be arranged on the first conductor 10 by other methods such as welding.
  • the shape of the holes 13, 14 in which the second conductors 30, 40 are arranged is not limited to the generally circular cross section shown in FIG. 5.
  • Fig. 7 is a perspective view showing an example of a motor according to the second embodiment.
  • the motor A1 according to the second embodiment is a so-called inner rotor type motor in which the stator A80 is disposed radially outward of the rotor A90.
  • the motor A1 includes a coil A10, a stator A80, and a rotor A90.
  • the stator A80 includes an insulator A83 and a stator core A81 surrounded by the coil A10 via the insulator A83.
  • the stator core A81 is an annular member formed by stacking multiple layers of magnetic material, such as stainless steel or magnetic steel plate, in the axial direction.
  • the coil A10 is an example of a motor coil.
  • FIG. 8 is an exploded perspective view showing an example of mounting a coil to a stator in the second embodiment. As shown in FIG. 8, the coil A10 is attached to the teeth A82 via an insulator A83.
  • the insulator A83 is formed of an insulating material such as resin. As shown in FIG. 9, the insulator A83 is inserted into the teeth A82 while being surrounded by the coil A10.
  • FIG. 9 is a perspective view showing an example of a coil attached to a stator. In this case, the stator core A81 is surrounded by the coil A10 via the insulator A83.
  • the rotor A90 is rotatably mounted on the motor A1 around the shaft A99, which is the rotation axis.
  • the rotor A90 includes the shaft A99, a rotor yoke A91 (yoke), and an annular magnet A92 that surrounds the outer periphery of the rotor yoke.
  • the shaft A99 is a rotating shaft and is formed in a cylindrical shape at the innermost radial position of the rotor A90.
  • the rotor yoke A91 is formed in a cylindrical shape from a magnetic material such as iron.
  • the inner peripheral surface of the rotor yoke A91 is arranged so as to contact the outer peripheral surface of the shaft A99.
  • the stator A80, rotor A90, and shaft A99 may be the same components as the stator 80, rotor 91, and shaft 99 in the first embodiment.
  • the coil A10 shown in FIG. 10 is formed by stacking a plurality of conductive members 100 shown in FIG. 11 in the radial direction of the rotor A90.
  • FIG. 10 is a perspective view showing an example of a coil in the second embodiment.
  • FIG. 11 is a perspective view showing an example of a conductive member in the second embodiment.
  • the coil A10 in the second embodiment includes a plurality of conductive members 100 stacked in the radial direction of the rotor A90.
  • the plurality of conductive members 100 are engaged with each other in the radial direction of the rotor A90.
  • the winding axis direction of the coil A10 is the radial direction of the rotor A90.
  • the radial direction of the rotor A90 is an example of a predetermined direction.
  • the plurality of conductive members 100 when expressed separately from each other, they may be expressed as conductive members 1a0 to 1j0.
  • the conductive member 100 includes a first plane 101, an inclined plane 104, a second plane 105, and a third plane 106.
  • the radial thicknesses of the first plane 101, the inclined plane 104, the second plane 105, and the third plane 106 are approximately the same.
  • the first plane 101 has a portion extending in the circumferential direction on the negative axial side, and portions extending from both ends of the portion in the circumferential direction toward the positive axial direction.
  • the second plane 105 extends from an end portion on one side of the first plane 101 in the circumferential direction on the positive axial direction to the other side in the circumferential direction.
  • the inclined surface 104 extends from an end portion on the positive axial direction on the other side of the first plane 101 in the circumferential direction to the positive axial direction.
  • the inclined surface 104 is also inclined toward the positive radial direction.
  • the third plane 106 extends from an end portion on the positive axial direction of the inclined surface 104 on the positive axial direction to the positive axial direction.
  • each of the conductive members 100 includes an engaged portion 107 and an engaging portion 108.
  • the engaged portion 107 and the engaging portion 108 constitute an engaging mechanism 109.
  • the engaged portion 107 is a recess cut out from the other circumferential end of the second plane 105 toward one side in the circumferential direction.
  • the engaging portion 108 is a protrusion protruding toward one side in the circumferential direction from the portion of the third plane 106 on the positive axial direction. That is, in the second embodiment, the engaging portion 108 is a protrusion protruding in the circumferential direction, and the engaged portion 107 is a recess recessed in the circumferential direction.
  • the engaging portion 108 is located radially outward from the engaged portion 107, the second plane 105, and the first plane 101.
  • the radially inner side is an example of one side in a predetermined direction
  • the radially outer side is an example of the other side in the predetermined direction.
  • the engaged portion 107 of the first conductive member 1b0 among the multiple conductive members 100 shown in FIG. 10 engages with the engaging portion 108 of the second conductive member 1a0 located on the inside in the radial direction.
  • the engaging portion 108 of the first conductive member 1b0 engages with the engaged portion 107 of the third conductive member 1c0 located on the outside in the radial direction.
  • the second conductive member 1a0, the first conductive member 1b0, and the third conductive member 1c0 form a spiral conductive member.
  • the engaged portion 107 and the engaging portion 108 of two adjacent conductive members 100 in the winding axis direction are electrically connected to each other.
  • the two adjacent conductive members 100 in the winding axis direction are engaged with a gap between them so that a short circuit does not occur in parts other than the engaged portion 107 and the engaging portion 108.
  • an insulating coating (coating) is applied to the multiple conductive members 100 engaged in a spiral shape, for example, by electrocoating, and this insulating coating fills the gap between the two adjacent conductive members 100.
  • the conductive member 100 in the second embodiment is formed, for example, by processing a plate material 199 shown in FIG. 12.
  • FIG. 12 is a plan view showing an example of a conductive member before processing in the second embodiment.
  • the plate material 199 is an annular plate-like member made of a conductive material such as copper, surrounding a cavity 10r as shown in FIG. 12, for example.
  • the cut plate material 199 is folded into a valley fold at the fold line 10u and into a mountain fold at the fold line 10t, thereby forming a first plane 101 and an inclined surface 104 inclined toward the positive radial side.
  • the folded plate material 199 is cut along the cutting line 10s, thereby forming a second plane 105 having an engaged portion 107 and a third plane 106 having an engaging portion 108.
  • the cavity 10r becomes a through hole through which the tooth A82 shown in FIG. 8 is inserted in the coil A10 in which the conductive member 100 is stacked.
  • the motor A1 in the second embodiment includes a stator A80 having a motor coil A10, an insulator A83, and a stator core A81 surrounded by the motor coil A10 via the insulator A83, and a rotor A90.
  • the motor coil A10 in the second embodiment also includes a plurality of conductive members 100 stacked in a predetermined direction, and the plurality of conductive members 100 engage with each other in the predetermined direction. This configuration improves workability when forming the motor coil.
  • terminals A31 and A32 may be attached to coil A10 in the second embodiment as shown in FIG. 13.
  • FIG. 13 is a perspective view showing an example of a coil to which terminals are attached in the second embodiment.
  • FIG. 14 is an exploded perspective view showing an example of a process for attaching terminals to a coil in the second embodiment.
  • Terminals A31 and A32 are, for example, approximately cylindrical conductors made of a conductive material such as copper.
  • terminals A31 and A32 extend in the positive axial direction as shown in FIG. 13. Terminals A31 and A32 are attached to the conductive member 100, for example, by soldering.
  • terminal A31 is electrically connected to the position indicated by the dashed line on the second plane 105 of the conductive member 100 on the negative radial side
  • terminal A32 is electrically connected to the position indicated by the dashed line on the third plane 106 of the conductive member 100 on the positive radial side.
  • terminals A31 and A32 may be other directions, such as the radial direction or the circumferential direction, and the connection positions are not limited to those shown in Figures 13 and 14.
  • Terminals A31 and A32 may be connected to only one of conductive member 1a0 located at the end on the negative radial side of coil A10 and conductive member 1j0 located at the end on the positive radial side.
  • the coil A10 is formed by a plurality of identical conductive members 100, but is not limited thereto, and the coil may be formed by helically engaging a plurality of conductive members having different sizes and shapes, as shown in Fig. 15.
  • Fig. 15 is a perspective view showing an example of a coil in the first modified example.
  • the same reference numerals are used to designate the same parts as those shown in the drawings described above, and duplicated explanations will be omitted.
  • the coil A20 in the first modified example includes multiple conductive members 1a0 to 1g0 and multiple other conductive members 2h0 to 2j0 that are different in circumferential size from the conductive member 100.
  • the multiple conductive members 2h0 to 2j0 when they are not to be distinguished from each other, they may be simply referred to as conductive member 200.
  • FIG. 16 is a perspective view showing an example of a conductive member in the first modified example.
  • the conductive member 200 has a first plane 201, an inclined surface 204, a second plane 205, and a third plane 206, similar to the conductive member 100 shown in FIG. 11.
  • the first plane 201, the inclined surface 204, the second plane 205, and the third plane 206 extend in approximately the same direction as the first plane 101, the inclined surface 104, the second plane 105, and the third plane 106 of the conductive member 100, respectively.
  • the inclined surface 204 is formed by folding at the fold lines 20t and 20u.
  • the conductive member 200 in the first modified example has one or more portions (overhanging portions 20k and 20m) that protrude in the circumferential direction from the conductive member 100.
  • the engaging mechanism 109 of the conductive member 200 having the overhanging portions 20k and 20m has the same shape as the engaging mechanism 109 of the conductive member 100.
  • the shape and size of the cavity 10r of the conductive member 200 are also approximately the same as the shape and size of the cavity 10r of the conductive member 100. This allows the conductive member 100 and the conductive member 200 to be easily engaged, so that the coil A20 having a different outer size of the conductive member can be easily formed and attached to the stator A80.
  • FIG. 17 is a top view showing an example of a coil attached to a stator in the first modified example.
  • the coil A20 shown in FIG. 17 can improve the space factor of the coil A20 in the stator A80 by the portions corresponding to the overhanging portions 20k and 20m of the conductive member 200.
  • Fig. 18 is a perspective view showing an example of a coil in the third embodiment.
  • Fig. 19 is a perspective view showing an example of a conductive member in the third embodiment.
  • the coil A40 shown in Fig. 18 is formed by stacking a plurality of conductive members 400 shown in Fig. 19 in the radial direction.
  • the conductive member 400 like the conductive member 100 shown in FIG. 11, has a first plane 401, an inclined surface 404, a second plane 405, and a third plane 406.
  • the first plane 401, the inclined surface 404, the second plane 405, and the third plane 406 extend in approximately the same direction as the first plane 101, the inclined surface 104, the second plane 105, and the third plane 106 of the conductive member 100, respectively.
  • the inclined surface 404 is formed by folding at the fold lines 40t and 40u.
  • two recesses 40p and 40q are formed on the first plane 401 of the conductive member 400 in the other circumferential portion.
  • the recess conceptually includes a groove shape such as recess 40q.
  • the portion of the first plane 401 located on the other circumferential side of recess 40q may be referred to as the second portion 402 of the first plane 401.
  • FIG. 20 is an enlarged perspective view showing an example of an engagement mechanism in the third embodiment.
  • FIG. 20 is an enlarged view of the portion shown in frame F1 in FIG. 19.
  • the engaged portion 407 is formed on a portion of the second plane 405 of the conductive member 400 that faces the third plane 406, and the engaging portion 408 is formed on a portion of the third plane 406 that faces the second plane 405.
  • the engaging portion 408 and the engaged portion 407 face each other in the radial direction.
  • the engaging portion 408 and the engaged portion 407 constitute an engaging mechanism 409.
  • the engagement portion 408 protrudes toward the positive radial direction.
  • a recess 408a recessed toward the positive radial direction may be formed on the negative radial direction side of the engagement portion 408 as shown in FIG. 20.
  • This recess 408a may be a hole.
  • the engaged portion 407 is a hole portion that opens in the radial direction.
  • the engaged portion 407 may also be a recess portion formed in the radial direction. That is, in the third embodiment, the engaging portion 408 is a convex portion that protrudes in a predetermined direction, and the engaged portion 407 is a hole portion or a recess portion formed in the predetermined direction.
  • the engaging portion 408 of the conductive member 4b0 shown in FIG. 19 engages with the engaged portion 407 of another conductive member 4c0 located on the positive radial side.
  • the engaged portion 407 of the conductive member 4b0 engages with the engaging portion 408 of another conductive member 4a0 located on the negative radial side.
  • the conductive member 4c0, the conductive member 4b0, and the conductive member 4a0 form a spiral conductive member.
  • an insulating coating is applied to the multiple conductive members 400 that are engaged in a spiral shape, for example, by electrocoating, so that electrical connection is maintained between the engaging portion 408 and the engaged portion 407 between the conductive members 400 that are engaged with each other in the winding axis direction, while short-circuiting in other parts is suppressed.
  • the conductive member 400 in the third embodiment is formed, for example, by processing a plate material 499 shown in FIG. 21.
  • FIG. 21 is a plan view showing an example of a conductive member before processing in the third embodiment.
  • the second portion 402 of the first plane 401 extends in a direction inclined to one side in the circumferential direction with respect to the axial direction.
  • the conductive member 400 is formed by bending a portion 403 of a plate material 499, including a second portion 402 of a first plane 401, an inclined surface 404, and a third plane 406, in the direction of the arrows shown in Figures 21 and 22, for example, in a direction perpendicular to the radial direction.
  • Figure 22 is a plan view showing an example of a manufacturing process for a conductive member in the third embodiment. In this bending process, as shown in Figure 22, the angle of the recess 40p with respect to the circumferential direction gradually increases, and conversely, the angle of the recess 40q with respect to the circumferential direction gradually decreases.
  • portion 403 is folded to the position shown by the dashed line in FIG. 22 and at fold lines 40t and 40u.
  • portion 403 which was inclined to one side in the circumferential direction, extends to the positive axial direction.
  • approximately circular portion 40v on second plane 405 and approximately circular portion 40w on third plane 406 face each other in the radial direction.
  • inclined surface 404, second plane 405, and third plane 406, cavity 40r of approximately the same size as cavity 10r in the second embodiment is formed.
  • the roughly circular portions 40v and 40w that face each other in the radial direction are pushed out, for example, toward the positive radial direction, to form the engaging portion 408, which is a protruding portion, and the engaged portion 407, which is a through hole.
  • the engaged portion 407 may be a recess recessed in the positive radial direction, rather than a hole opening in the radial direction.
  • a configuration may be adopted in which multiple conductive members 400 are aligned in the radial direction, and multiple roughly circular portions 40v and 40w that overlap in the radial direction are punched out together. This makes it possible to omit the process of forming the engaging mechanisms 409 individually.
  • the engaging portion 408 is a convex portion that protrudes in a predetermined direction
  • the engaged portion 407 is a hole or a concave portion formed in the predetermined direction. Even with this configuration, the workability when forming the motor coil can be improved.
  • FIG. 23 is an exploded perspective view showing an example of a process for attaching a terminal to a coil in the third embodiment.
  • the terminal A43 is formed with a convex portion A47 that protrudes toward the positive radial side
  • the terminal A44 is formed with a concave portion A48 that is recessed toward the positive radial side.
  • the convex portion A47 of the terminal A43 engages with the engaged portion 407 of the conductive member 4a0 located on the negative radial side
  • the concave portion A48 of the terminal A44 engages with the engaging portion 408 of the conductive member 4i0 located on the positive radial side.
  • the second plane 405 and the third plane 406 are formed so that the end faces on the other circumferential side and the end faces on the positive axial side are both substantially flush with each other, but this is not limited thereto.
  • a part of the second plane 505 may protrude in either direction from the third plane 406.
  • a part of the third plane 506 may protrude in either direction from the second plane 405.
  • FIG. 24 is a plan view showing an example of a terminal-attached conductive member before processing in the second modified example.
  • FIG. 25 is a plan view showing another example of a terminal-attached conductive member before processing in the second modified example.
  • FIG. 26 is a perspective view showing an example of a terminal-attached coil in the second modified example.
  • the terminal-attached coil 40b in the second modified example includes conductive members 4b0 to 4h0, a terminal-attached conductive member 5a0 on which a terminal portion A51 is formed as shown in FIG. 24, and a terminal-attached conductive member 5i0 on which a terminal portion A52 is formed as shown in FIG. 25.
  • the terminal-equipped conductive member 5a0 is formed by bending a plate material 5a9 as shown in FIG. 24 in the same manner as plate material 499, and the terminal-equipped conductive member 5i0 is formed by bending a plate material 5i9 as shown in FIG. 25.
  • the terminal portion A51 extends from the second plane 505 of the terminal-equipped conductive member 5a0 in the positive axial direction.
  • the terminal portion A52 extends from the third plane 506 of the terminal-equipped conductive member 5i0 in the positive axial direction.
  • the substantially circular portion 40w of the plate material 5a9 forms an engaging portion 408 that protrudes toward the positive radial side
  • the substantially circular portion 40v of the plate material 5i9 forms an engaged portion 407 that opens in the radial direction.
  • the engaging portion 408 of the terminal-attached conductive member 5a0 engages with the engaged portion 407 of the conductive member 4b0
  • the engaging portion 408 of the conductive member 4h0 engages with the engaged portion 407 of the terminal-attached conductive member 5i0.
  • a terminal-attached coil 40b is formed that has a terminal portion A51 on the negative radial side and a terminal portion A52 on the positive radial side.
  • the position where the terminal portion A51 or A52 is formed is not limited to that shown in Figs. 24 to 26, and may be formed in other directions, such as in any direction in the circumferential direction or in a direction tilted relative to the axial direction.
  • the conductive member 100 in the second embodiment may be configured to have a terminal portion formed thereon.
  • the radial thickness of the second plane and the third plane is approximately the same as that of the first plane, but as shown in Figures 27 to 29, the radial thickness may vary depending on the location.
  • Figure 27 is a perspective view showing an example of a conductive member in the third modified example.
  • Figure 28 is an enlarged perspective view showing an example of an engagement mechanism in the third modified example.
  • Figure 29 is a perspective view showing an example of a coil in the third modified example.
  • Figure 28 is an enlarged view of the portion shown in frame F2 in Figure 27.
  • the radial thickness W12 of the second plane 605 is smaller than the radial thickness W11 of the first plane 401.
  • the radial thickness W13 of the third plane 606 is also smaller than the thickness W11.
  • the combined thickness of thickness W12 and thickness W13 is, for example, approximately the same as thickness W11.
  • the conductive members 600 are also engaged with each other in the radial direction by an engagement mechanism 609 including an engaged portion 607 and an engaging portion 608.
  • the distance W14 between two adjacent conductive members 600 in the radial direction is smaller than the distance W10 between two conductive members 400 in the coil A40 shown in FIG. 18.
  • the radial distance between the conductive members 600 can be reduced, thereby improving the space factor of the coil A60.
  • the coil A40 shown in FIG. 18 has nine conductive members 4a0 to 4i0, whereas the coil A60 shown in FIG. 29 can have ten conductive members 6a0 to 6j0 in the same coil size as the coil A40.
  • the engagement portion 608 in the third modified example may be formed, for example, by cutting out the surface 606a on the positive radial side of the third plane 606 shown in FIG. 28 toward the negative radial side, leaving the engagement portion 608.
  • FIG. 30 is a perspective view showing an example of a conductive member in the fourth modified example.
  • an engaging portion 707 constituting an engaging mechanism 709 of a conductive member 700 is a convex portion that protrudes from a second plane 705 in the negative axial direction.
  • an engaged portion 708 is a concave portion that is recessed from a third plane 706 in the negative axial direction.
  • the engagement mechanism is not limited to the one shown above, and may be configured to engage in the circumferential direction, as in the second embodiment. Also, as shown in FIG. 31, the engagement mechanism may be configured to engage in the axial direction.
  • FIG. 31 is a perspective view showing an example of a conductive member in the fifth modified example.
  • the conductive member 800 shown in FIG. 31 is formed by bending a plate material having recesses 40p and 40q formed therein in a direction perpendicular to the radial direction, similar to the conductive member 400, rather than punching out an annular member.
  • the engaging portion 807 of the engaging mechanism 809 protrudes in the negative axial direction like the engaging portion 707 in the fourth modified example, and the engaged portion 808 is recessed in the negative axial direction like the engaged portion 708.
  • the engaging portion 807 is formed, for example, on the positive axial side of the end face 805b on the negative axial side of the second plane 805.
  • the end face 806c on the positive axial side of the third plane 806 protrudes in the positive axial direction more than the end face 805b of the second plane 805.
  • the cavity 70r of the conductive member 700 in the fourth modified example and the cavity 80r of the conductive member 800 in the fifth modified example have approximately the same size as the cavity 10r in the second embodiment.
  • Fig. 32 is a perspective view showing an example of a split core attached to a stator core in the fourth embodiment.
  • the motor B1 in the fourth embodiment includes a stator B80 and a rotor B91.
  • the motor B1 is a so-called inner rotor type motor in which the rotor B91 is disposed radially inside the stator B80.
  • the motor B1 is housed in a frame (not shown), for example.
  • the rotor B91 is rotatably mounted on the motor B1 around the shaft B99, which is the rotation axis of the motor B1.
  • the rotor B91 includes the shaft B99, a rotor yoke (yoke), and a magnet (not shown).
  • the shaft B99 is a rotating shaft and is formed in a cylindrical shape at the innermost radial position of the rotor B91.
  • the rotor yoke is formed in a cylindrical shape from a magnetic material such as iron.
  • the inner peripheral surface of the rotor B91 is positioned so as to contact the outer peripheral surface of the shaft B99.
  • the stator B80 includes a stator core B81 and multiple split cores B2.
  • the stator core B81 is an annular member formed by stacking multiple magnetic bodies, such as stainless steel or magnetic steel plates, in the axial direction. As shown in FIG. 32, the inner peripheral surface of the stator core B81 is formed with multiple recesses B84 that are recessed radially outward.
  • Each of the multiple split cores B2 is fixed to a recess B84 of the stator core B81. Although only one split core B2 is shown in FIG. 32, the split cores B2 are housed, for example, in each of the twelve recesses B84 shown in FIG. 32.
  • the split core B2 in the fourth embodiment includes a magnetic body B10, a case B20, and a coil B50.
  • Figs. 33 and 34 are perspective views showing an example of a split core in the fourth embodiment.
  • Fig. 33 shows the split core B2 as viewed from the negative radial side, i.e., from the inside
  • Fig. 34 shows the split core B2 as viewed from the positive radial side, i.e., from the outside.
  • the coil B50 as a conductive member has a band-shaped outer shape B54 wound in a spiral shape.
  • Figs. 35 and 36 are exploded perspective views showing an example of a split core in the fourth embodiment.
  • Fig. 35 shows the members constituting the split core B2 as viewed from the negative radial side, i.e., from the inside
  • Fig. 36 shows the members as viewed from the positive radial side, i.e., from the outside.
  • the coil B50 is a coil that can have a large cross-sectional area, such as an edgewise coil.
  • the coil B50 is formed by winding a flat conductive member made of a metal such as copper in a spiral shape with the radial direction as the winding axis direction.
  • the band-shaped outer shape B54 is wound in an approximately rectangular shape with respect to the winding axis direction.
  • the coil B50 is an example of a conductive member.
  • coil B50 has terminals B51 and B52 that protrude on the positive axial side.
  • Terminal B51 is located on the negative radial side, and terminal B52 is located on the positive radial side.
  • the coil B50 also has through holes B53a to B53c and hole B54e that extend radially, i.e., in the direction of the winding axis of the coil B50.
  • the through holes B53a to B53c are formed, for example, in the four corners of the substantially rectangular outer shape B54 where the terminals B51 and B52 are not formed.
  • the hole B54e is a portion surrounded by the outer shape B54.
  • the through holes B53a to B53c are an example of multiple fitted portions.
  • the magnetic body B10 is formed by stacking metal plates, such as stainless steel, in the axial direction. As shown in FIG. 34, the magnetic body B10 has a first portion B11 and a pair of second portions B12. As shown in FIG. 35, the first portion B11 extends outward in the winding axis direction, i.e., in the radial direction. A part of the first portion B11 protrudes outward in the radial direction in the split core B2 and fits into a recess B84 of the stator core B81 as shown in FIG. 32. The second portion B12 extends away from the first portion B11 on both circumferential sides.
  • the case B20 shown in Figures 33 and 34 is, for example, a resin member, and has a housing B30 located on the inside in the radial direction and a lid B40 located on the outside. As shown in Figures 35 and 36, the coil B50 is housed in the housing B30 and is covered from the outside in the radial direction by the lid B40.
  • the housing B30 has a back surface B31, an inner wall B32, and an outer wall B33.
  • the back surface B31 is located on the negative radial side.
  • the inner wall B32 and the outer wall B33 extend from the back surface B31 to the positive radial side.
  • the portion surrounded by the inner wall B32 forms a through hole B32e extending in the radial direction.
  • an opening B35e opening toward the positive radial side is formed between the inner wall B32 and the outer wall B33.
  • an opening B33d opening toward the positive axial side is formed in the outer wall B33, as shown in Figures 35 and 36.
  • protrusions B34a to B34c are formed on the radially positive surface of the rear face B31 of the housing B30, protruding outward in the winding axis direction of the coil B50, i.e., in the radial direction.
  • the protrusions B34a to B34c are formed at positions corresponding to the through holes B53a to B53c of the coil B50, respectively.
  • the protrusion B34a faces the through hole B53a
  • the protrusion B34b faces the through hole B53b
  • the protrusion B34c faces the through hole B53c, respectively, in the radial direction.
  • the radially positive surface of the rear face B31 of the housing B30 is an example of the inner surface of the case
  • the protrusions B34a to B34c are an example of multiple fitting portions.
  • the protrusions B34a to B34c which become the mating portions, respectively fit into the through holes B53a to B53c, which become the mated portions. That is, the back surface B31 of the housing B30 has a plurality of mating portions B34a to B34c in the winding axis direction of the coil B50. Also, the coil B50 has a plurality of mated portions B53a to B53c in the winding axis direction of the coil B50.
  • the mating portions B34a to B34c of the back surface B31 of the housing B30 are protrusions extending in the winding axis direction of the coil B50, and the mated portions B53a to B53c of the coil B50 are hole portions such as through holes.
  • protrusion B34a is in through hole B53a
  • protrusion B34b is in through hole B53b
  • protrusion B34c is in through hole B53c.
  • the magnetic body B10 is inserted into the through hole B32e on the inside of the housing B30 from the negative radial side.
  • the coil B50 is housed in the opening B35e from the positive radial side.
  • the inner surface of the inner wall B32 faces and contacts the first part B11 of the magnetic body B10, while the outer surface of the inner wall B32 faces and contacts the hole B54e of the coil B50.
  • the resin inner wall B32 insulates the first part B11 of the magnetic body B10 from the coil B50.
  • the terminals B51 and B52 of the coil B50 protrude from the opening B33d formed in the outer wall B33 of the housing B30 toward the positive axial side, as shown in Figures 33 and 34.
  • the lid B40 also has three through holes B43a to B43c and a hole B45e.
  • the through holes B43a to B43c are formed at positions corresponding to the protrusions B34a to B34c of the housing B30, respectively, and the hole B45e is formed at a position corresponding to the inner wall B32 of the housing B30.
  • the protrusion B34a fits into the through hole B43a
  • the protrusion B34b fits into the through hole B43b
  • the protrusion B34c fits into the through hole B43c.
  • the hole B45e also fits into the inner wall B32.
  • the stator in the fourth embodiment includes a conductive member (coil B50) wound in a spiral shape and having a band-like outer shape, an annular case B20 that houses the coil B50, and a magnetic body B10 that passes through the annular case B20.
  • the back surface B31 of the case B20 includes a plurality of fitting portions B34a to B34c in the winding axis direction of the coil B50, and the coil B50 includes a plurality of fitted portions B53a to B53c in the winding axis direction of the coil B50.
  • the protrusions B34a to B34c may be formed on the lid B40, or the lid may be located on the negative radial side.
  • the above describes a configuration in which the case B20 includes a housing B30 and a lid B40, but the housing and the lid may be formed as a single unit.
  • the through holes B53a to B53c of the coil B50 are holes that penetrate in the winding axis direction, but are not limited to this and may be recesses that do not penetrate in the winding axis direction.
  • the lid B40 may also be formed with a protrusion that protrudes on the positive side in the winding axis direction, and the coil may have a recess recessed on the negative side in the winding axis direction that engages with the protrusions B34a to B34c of the case B20, and a recess recessed on the positive side in the winding axis direction that engages with the protrusion of the lid B40.
  • terminals B51 and B52 both protrude in the positive axial direction have been described, the embodiment is not limited to this.
  • the terminals may protrude in other directions, such as the negative axial direction or the outer radial direction, and the two terminals may face in different directions.
  • the second portion of the magnetic body may be fitted to an outer surface of the case facing the second portion of the magnetic body in the winding axis direction of the conductive member.
  • Fig. 37 is a perspective view showing an example of a split core in the sixth modified example.
  • the split core B3 in the sixth modified example includes a magnetic body B100, a coil B50, and a case B200.
  • the case B200 includes a housing B300 and a lid B40.
  • the shape of the split core B3 in the sixth modified example when viewed from the positive radial side is substantially the same as the shape of the split core B2 shown in FIG. 34.
  • the second part B120 of the magnetic body B100 is formed with two recesses B12a and B12b recessed radially outward.
  • Figures 38 and 39 are exploded perspective views showing an example of a split core in the sixth modified example.
  • the two recesses B12a and B12b are formed on one side and the other side, respectively, in the circumferential direction with respect to the first part B11 of the magnetic body B100.
  • the recesses B12a and B12b are an example of a mating part of the second part of the magnetic body.
  • the negative radial surface of the back surface B310 of the housing B300 has protrusions B31a and B31b.
  • the protrusion B31a is formed at a position facing the recess B12a in the radial direction
  • the protrusion B31b is formed at a position facing the recess B12b in the radial direction.
  • the negative radial surface of the back surface B310 of the housing B300 is an example of the outer surface of the case
  • the protrusions B31a and B31b are an example of a fitting portion of the outer surface of the case.
  • the protrusion B31a fits into the recess B12a of the second part B120 of the magnetic body B100, as shown in FIG. 37.
  • the protrusion B31b fits into the recess B12b. That is, the fitting parts B31a and B31b of the back surface B310 of the case B200 facing the second part B120 of the magnetic body B100 are protrusions extending in the winding axis direction of the coil B50, and the fitted parts B12a and B12b of the second part B120 of the magnetic body B100 are recesses, with the protrusion B31a being within the recess B12a. Also, the protrusion B31b being within the recess B12b.
  • a protrusion may be formed in the magnetic body and a recess or notch may be formed in the case.
  • a configuration in which a recess is formed on one circumferential side of the magnetic body B100 and a protrusion is formed on the other side may be used. In such a configuration, a protrusion is formed on one circumferential side of the housing B300 and a recess is formed on the other side, so that the magnetic body B100 and the housing B300 fit together.
  • the magnetic body B100 includes a first portion B11 extending in the winding axis direction of the coil B50, and a second portion B120 extending in a direction away from the first portion B11.
  • the second portion B120 of the magnetic body B100 and the rear surface B310 of the housing B300 facing the second portion B120 of the magnetic body B100 are fitted together.
  • the outer shape of the coil B50 in the fourth embodiment is substantially the same as the inner shape of the outer wall B33 of the case B20, but the embodiment is not limited to this.
  • the gap between the outer wall B33 of the case and the conductive member housed in the case may be covered with a resin such as varnish.
  • Figure 40 is a perspective view showing an example of a process for attaching a coil to a housing in the seventh modified example.
  • the width W22 of the outer shape B64 of the coil B60 is slightly smaller than the width W21 of the opening B35e.
  • the outer shape B64 of the coil B60 in the seventh modified example faces the outer wall B33 of the case B20 with a gap G1 between them.
  • the coil B60 is another example of a conductive member.
  • FIG. 41 is a perspective view showing an example of a split core in the seventh modified example.
  • the width W23 of the terminals B61 and B62 of the coil B60 is smaller than the width of the terminals B51 and B52 of the coil B50 of the split core B3 in the sixth modified example.
  • a gap G2 is formed between one end of the coil B60 in the circumferential direction of the opening B33d and the terminals B61 and B62.
  • the appearance of the split core B4 is substantially the same as the appearance of the split core B2 shown in FIG. 33 and FIG. 34, except for the width of the terminals B61 and B62 described above.
  • the gaps G1 and G2 between the coil B60 and the outer wall B33 of the housing B30 of the case B20 are filled with liquid resin such as varnish.
  • the resin is filled, for example, from the opening B33d of the housing B30 toward the negative side in the axial direction.
  • the filled resin then hardens to form the resin member B69.
  • Figure 42 is a cross-sectional perspective view showing an example of a split core in the seventh modified example.
  • Figure 42 shows a cross section taken along plane S1 of Figure 41.
  • the outer shape B64 of the coil B60 faces the outer wall B33 of the housing B30 via a resin member B69, which is another member.
  • the coil B60 is fixed to the case B20 via the resin member B69.
  • the opening B33d may also be covered with the resin member B69.
  • a resin member B69 is present inside the case B20, and the resin member B69 covers a portion of the coil B60. This allows the coil B60 to be more securely fixed to the split core B4, and the resin member B69 absorbs vibrations, further reducing the transmission of vibrations from the motor B1 to the coil B60. Furthermore, heat dissipation from the coil B60 is promoted via the resin member B69 and the case B20, which have good thermal conductivity.
  • the conductive member may have a recess that faces the protrusions B34a to B34c in the radial direction, as shown in Fig. 43.
  • Fig. 43 is a perspective view showing an example of a process of attaching the coil to the housing in the eighth modified example.
  • the coil B600 shown in Fig. 43 has a recess B65a in which a part of the outer shape B640 is cut out at a position that faces the protrusion B34a of the housing B30 in the radial direction.
  • the coil B600 has a recess B65b at a position that faces the protrusion B34b in the radial direction, and a recess B65c at a position that faces the protrusion B34c in the radial direction.
  • FIG. 44 is a perspective view showing an example of a coil accommodated in a housing in the eighth modified example.
  • FIG. 44 shows the split core B5 in the eighth modified example with the lid B40 and magnetic body B10 removed.
  • the shape of the split core B5 in the eighth modified example is substantially the same as the shape of the split core B4 in the seventh modified example shown in FIG. 41.
  • a part B69b of the resin member B690 is present between the recess B65b and the outer wall B33, as shown in Figs. 44 and 45.
  • Fig. 45 is an enlarged perspective view showing an example of an engagement portion of a coil accommodated in a housing in the eighth modified example.
  • Fig. 45 is an enlarged view of the portion shown in frame F3 in Fig. 44.
  • a part B69a of the resin member B690 is present between the recess B65a and the outer wall B33
  • a part B69c of the resin member B690 is present between the recess B65c and the outer wall B33.
  • the case when the conductive member can be fixed to the case by a resin member B69 or the like, the case may be configured without including the lid B40, for example.
  • stators and coils in each embodiment and each modified example may also be used in so-called outer rotor type motors, in which the stator is located radially inside the rotor.
  • each embodiment and each modified example may be combined as appropriate.
  • the magnetic body B100 and the case B200 shown in the sixth modified example may be used instead of the magnetic body B10 and the case B20 shown in the fourth embodiment.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Abstract

Une bobine de moteur (2) comprend : un premier fil conducteur (10) qui est enroulé dans la direction de l'axe d'enroulement ; et de seconds fils conducteurs (30, 40) qui sont connectés au premier fil conducteur (10). Le premier fil conducteur (10) comprend : des surfaces latérales (15, 16, 17, 18) qui s'étendent dans la direction circonférentielle dans laquelle le premier fil conducteur (10) est enroulé ; et des trous (13, 14) qui sont formés dans la surface latérale (15). Une section de chacun des seconds fils conducteurs (30, 40) est disposée dans le trou (13, 14).
PCT/JP2023/044132 2022-12-09 2023-12-11 Bobine de moteur, stator et moteur WO2024122647A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2022196831A JP2024082752A (ja) 2022-12-09 2022-12-09 モータ用コイル、ステータ及びモータ
JP2022-196831 2022-12-09
JP2022198633A JP2024084385A (ja) 2022-12-13 2022-12-13 ステータ
JP2022198632A JP2024084384A (ja) 2022-12-13 2022-12-13 モータ用コイル及びモータ
JP2022-198633 2022-12-13
JP2022-198632 2022-12-13

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WO2024122647A1 true WO2024122647A1 (fr) 2024-06-13

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Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53140562A (en) * 1977-05-13 1978-12-07 Hitachi Ltd Electric coil
JPS59117278U (ja) * 1983-01-27 1984-08-08 国産電機株式会社 内燃機関点火装置用エキサイタコイル
JPH0326274U (fr) * 1989-07-18 1991-03-18
WO2004006414A1 (fr) * 2002-07-02 2004-01-15 Katsuyuki Totsu Moteur synchrone a quatre poles
WO2005018071A1 (fr) * 2003-08-19 2005-02-24 Fumito Komatsu Moteur synchrone
JP2006158044A (ja) * 2004-11-26 2006-06-15 Toyota Motor Corp ステータ構造
JP2007336651A (ja) * 2006-06-13 2007-12-27 Toyota Motor Corp 回転電機の固定子および回転電機の固定子の製造方法
JP2012186975A (ja) * 2011-03-08 2012-09-27 Honda Motor Co Ltd 回転電機のステータ
WO2019059297A1 (fr) * 2017-09-20 2019-03-28 アイシン・エィ・ダブリュ株式会社 Procédé de fabrication d'armature pour machine dynamo-électrique
WO2020026792A1 (fr) * 2018-07-31 2020-02-06 パナソニックＩｐマネジメント株式会社 Moteur
WO2020255614A1 (fr) * 2019-06-17 2020-12-24 パナソニックＩｐマネジメント株式会社 Bobine et stator, rotor et moteur équipés de la bobine et procédé de fabrication de la bobine
WO2022004300A1 (fr) * 2020-07-01 2022-01-06 パナソニックＩｐマネジメント株式会社 Unité de bobine, moteur et procédé de fabrication d'unité de bobine

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53140562A (en) * 1977-05-13 1978-12-07 Hitachi Ltd Electric coil
JPS59117278U (ja) * 1983-01-27 1984-08-08 国産電機株式会社 内燃機関点火装置用エキサイタコイル
JPH0326274U (fr) * 1989-07-18 1991-03-18
WO2004006414A1 (fr) * 2002-07-02 2004-01-15 Katsuyuki Totsu Moteur synchrone a quatre poles
WO2005018071A1 (fr) * 2003-08-19 2005-02-24 Fumito Komatsu Moteur synchrone
JP2006158044A (ja) * 2004-11-26 2006-06-15 Toyota Motor Corp ステータ構造
JP2007336651A (ja) * 2006-06-13 2007-12-27 Toyota Motor Corp 回転電機の固定子および回転電機の固定子の製造方法
JP2012186975A (ja) * 2011-03-08 2012-09-27 Honda Motor Co Ltd 回転電機のステータ
WO2019059297A1 (fr) * 2017-09-20 2019-03-28 アイシン・エィ・ダブリュ株式会社 Procédé de fabrication d'armature pour machine dynamo-électrique
WO2020026792A1 (fr) * 2018-07-31 2020-02-06 パナソニックＩｐマネジメント株式会社 Moteur
WO2020255614A1 (fr) * 2019-06-17 2020-12-24 パナソニックＩｐマネジメント株式会社 Bobine et stator, rotor et moteur équipés de la bobine et procédé de fabrication de la bobine
WO2022004300A1 (fr) * 2020-07-01 2022-01-06 パナソニックＩｐマネジメント株式会社 Unité de bobine, moteur et procédé de fabrication d'unité de bobine

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