WO2023209750A1 - Stator and motor - Google Patents

Stator and motor Download PDF

Info

Publication number
WO2023209750A1
WO2023209750A1 PCT/JP2022/018647 JP2022018647W WO2023209750A1 WO 2023209750 A1 WO2023209750 A1 WO 2023209750A1 JP 2022018647 W JP2022018647 W JP 2022018647W WO 2023209750 A1 WO2023209750 A1 WO 2023209750A1
Authority
WO
WIPO (PCT)
Prior art keywords
stator core
stator
bobbin
coil
portions
Prior art date
Application number
PCT/JP2022/018647
Other languages
French (fr)
Japanese (ja)
Inventor
亜美 ▲高▼松
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2022/018647 priority Critical patent/WO2023209750A1/en
Publication of WO2023209750A1 publication Critical patent/WO2023209750A1/en

Links

Images

Classifications

    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility

Definitions

  • the present disclosure relates to a stator and a motor.
  • the stator of the motor includes an annular stator core having a plurality of teeth arranged at intervals in the circumferential direction, a coil formed by winding a conductor around the teeth, and a coil between the teeth and the coil. Some have an intervening bobbin that provides electrical insulation. One end of each coil may be routed outside the bobbin along the circumferential direction of the stator core as a crossover wire to the next coil.
  • Patent Document 1 Such a conventional stator is disclosed in Patent Document 1, for example.
  • the stator disclosed in Patent Document 1 has a stepped portion on the outer peripheral surface of the bobbin.
  • the crossover wire is held at the stepped portion.
  • the crossover wire is held at the stepped portion only from one direction. Therefore, for example, when the motor vibrates, the crossover wire may fall off the stepped portion.
  • the connecting wire that has fallen off from the stepped portion comes into contact with other connecting wires, causing an electrical short-circuit problem.
  • the present disclosure has been made to solve the above-mentioned problems, and an object of the present disclosure is to provide a stator that can prevent crossover wires from falling off from the bobbin.
  • a stator according to the present disclosure includes a stator core having a tooth portion extending inward in the radial direction and a tooth tip portion provided at the tip of the teeth portion, and a bobbin provided on the teeth portion and around which a coil is wound,
  • the bobbin is formed with a first stepped portion facing radially outward of the stator core and holding the crossover wire of the coil, and a step direction facing radially outward of the stator core and opposite to the step direction of the first stepped portion.
  • a second step portion that holds the connecting wire, and the first step portion and the second step portion are arranged adjacent to each other in the circumferential direction of the stator core.
  • the stator of the present disclosure can avoid contact between the dropped crossover wire and other crossover wires, and can suppress the occurrence of electrical short-circuit defects. As a result, the stator of the present disclosure can improve the reliability and durability of the motor.
  • FIG. 1 is a perspective view of a stator according to Embodiment 1.
  • FIG. FIG. 2 is a perspective view of a stator core and a bobbin that constitute the stator according to the first embodiment. It is an enlarged view of a split bobbin.
  • FIG. 3A is a perspective view showing a state in which the split bobbin does not hold a crossover wire.
  • FIG. 3B is a perspective view showing a state in which the split bobbin holds the connecting wire. It is an enlarged view of the terminal attached to the bobbin.
  • FIG. 1 is a perspective view of a stator 10 according to the first embodiment.
  • FIG. 2 is a perspective view of the stator core 11 and bobbin 13 that constitute the stator 10 according to the first embodiment.
  • FIG. 3 is an enlarged view of the split bobbin 20.
  • FIG. 4 is an enlarged view of the terminal 14 attached to the bobbin 13.
  • the stator 10 shown in FIG. 1 is provided in a motor.
  • This stator 10 is formed in an annular shape and is fixed to a motor housing (not shown). Further, a rotor of a motor (not shown) is arranged inside the stator 10 in the radial direction.
  • the stator 10 rotatably supports the rotor.
  • the stator 10 includes a stator core 11, a coil 12, a bobbin 13, and a terminal 14.
  • the stator core 11 is constructed by, for example, laminating magnetic steel plates in the axial direction of the stator core 11 (motor). This stator core 11 is formed in an annular shape. Further, the stator core 11 has a plurality of fixing portions 11a, a plurality of screw holes 11b, a plurality of teeth portions 11c, and a plurality of tooth tip portions 11d. 1 and 2 are examples in which the stator core 11 includes four fixing portions 11a, four screw holes 11b, twelve teeth portions 11c, and twelve tooth tip portions 11d.
  • the fixing part 11a is a part for fixing the stator core 11 to the housing.
  • This fixed portion 11a is provided so as to protrude from the outer peripheral surface of the stator core 11 toward the outside in the radial direction of the stator core 11 (motor). Further, the fixed portions 11a are arranged at equal intervals in the circumferential direction of the stator core 11 (motor).
  • One screw hole 11b is provided for each fixing portion 11a.
  • a screw (not shown) can pass through the screw hole 11b. This penetrating screw can be fastened to the screw hole of the housing.
  • the teeth portion 11c is provided so as to protrude from the inner peripheral surface of the stator core 11 toward the radial inner side of the stator core 11 (motor). Further, the teeth portions 11c are arranged at equal intervals in the circumferential direction of the stator core 11.
  • the tooth tip portion 11d constitutes a magnetic pole.
  • the tooth tip portion 11d is provided at the tip of each tooth portion 11c. That is, the teeth tip portions 11d are arranged radially inward of the stator core 11 than the teeth portions 11c.
  • one coil 12 is provided for each set consisting of a tooth portion 11c and a tooth tip portion 11d provided at the tip thereof.
  • This coil 12 is constructed by winding a conducting wire around a bobbin 13, which will be described later.
  • the coil 12 is fixed to the tooth portion 11c via the bobbin 13, and is arranged so as to surround the tooth tip portion 11d.
  • the conductive wire that is wound around the bobbin 13 to form the coil 12 is referred to as a main wire 12a.
  • a conductive wire drawn for a predetermined length from the main wire 12a wound around the bobbin 13 toward another bobbin 13 or another electronic component (not shown) is referred to as a crossover wire 12b.
  • the tip of the crossover wire 12b becomes one end or the other end of the main wire 12a.
  • one end of the main line 12a is the winding start end of the main line 12a
  • the other end of the main line 12a is the winding end of the main line 12a.
  • the bobbin 13 is provided on each tooth portion 11c of the stator core 11.
  • This bobbin 13 is made of, for example, an insulating resin material. Therefore, the bobbin 13 serves as a winding die when winding the conductive wire to form the coil 12, and also serves as electrical insulation between the tooth tip portion 11d and the coil 12.
  • the bobbin 13 includes divided bobbins 20 and 30 that can be connected to each other.
  • the split bobbin 20 is arranged on one axial end side of the stator core 11 with the teeth portion 11c as a boundary. This split bobbin 20 can be fitted into the teeth portion 11c from one end in the axial direction of the stator core 11.
  • the split bobbin 30 is arranged on the other axial end side of the stator core 11 with the teeth portion 11c as a boundary. This split bobbin 30 can be fitted into the teeth portion 11c from the other end in the axial direction of the stator core 11.
  • the split bobbins 20 and 30 are fitted with the teeth portions 11c and abutted against each other with the teeth portions 11c sandwiched from both sides of the stator core 11 in the axial direction, thereby forming the bobbin 13.
  • the split bobbin 20 has an outer coil holding part 21, an inner coil holding part 22, a coil winding body part 23, and a fitting part 24.
  • the outer coil holding part 21 is arranged on the radially outer side of the stator core 11 in the split bobbin 20 fitted to the teeth part 11c.
  • the inner coil holding portion 22 is arranged on the radially inner side of the stator core 11 in the split bobbin 20 fitted to the teeth portion 11c. This inner coil holding portion 22 is arranged radially inward of the stator core 11 than the outer coil holding portion 21 is.
  • the coil winding trunk 23 is provided between the outer coil holding part 21 and the inner coil holding part 22.
  • the surface of the coil winding body 23 is a surface on which the conductive wire forming the coil 12 is wound. This surface is formed to cover one axial end side of the teeth portion 11c.
  • the radially inner surface of the outer coil holding portion 21 is steeply cut relative to the surface. Further, on the radially inner side of the surface, the radially outer surface of the inner coil holding portion 22 is steeply cut relative to the surface.
  • the fitting portion 24 fits with one end in the axial direction of the teeth portion 11c. This fitting portion 24 is provided on the back side of the coiled body portion 23.
  • the split bobbin 30 has an outer coil holding part 31, an inner coil holding part 32, a coil winding body part 33, and a fitting part 34.
  • the outer coil holding part 31 is arranged on the radially outer side of the stator core 11 in the split bobbin 30 fitted to the teeth part 11c. Then, the end surface of the outer coil holding part 21 on the other axial end side and the end face of the outer coil holding part 31 on the one axial end side are butted against each other without a step and are connected.
  • the inner coil holding portion 32 is arranged on the radially inner side of the stator core 11 in the split bobbin 30 fitted to the teeth portion 11c. This inner coil holding portion 32 is arranged radially inward of the stator core 11 than the outer coil holding portion 31 is.
  • the end surface of the inner coil holding part 22 on the other axial end side and the end face of the inner coil holding part 32 on the one axial end side are butted against each other without a step and are connected.
  • the coil winding trunk 33 is provided between the outer coil holding part 31 and the inner coil holding part 32.
  • the surface of the coil winding body 33 is a surface on which the conductive wire forming the coil 12 is wound. This surface is formed to cover the other axial end side of the teeth portion 11c.
  • the radially inner surface of the outer coil holding portion 31 is steeply cut relative to the surface.
  • a radially outer surface of the inner coil holding portion 32 is steeply cut relative to the surface.
  • the fitting portion 34 fits with the other axial end of the teeth portion 11c.
  • This fitting portion 34 is provided on the back surface of the coiled body portion 33.
  • the fitting portions 24 and 34 are connected to each other while sandwiching the tooth portion 11c from both sides in the axial direction.
  • the split bobbin 20 has stepped portions 25a to 25c, stepped portions 26a to 26c, pins 27a and 27b, and a mounting hole 28. Note that the step portions 25a to 25c constitute a first step portion, and the step portions 26a to 26c constitute a second step portion.
  • the stepped portions 25a to 25c and the stepped portions 26a to 26c are for hooking and holding one crossover wire 12b, respectively.
  • the step portion 25a and the step portion 26a correspond to each other, the step portion 25b and the step portion 26b correspond to each other, and the step portion 25c and the step portion 26c correspond to each other.
  • one crossover wire 12b is held so as to be sandwiched between the stepped portion 25a and the stepped portion 26a from both sides of the stator core 11 in the axial direction. Moreover, one crossover wire 12b is held so as to be sandwiched between the step portion 25b and the step portion 26b from both sides of the stator core 11 in the axial direction. Further, one crossover wire 12b is held between the stepped portion 25c and the stepped portion 26c so as to be sandwiched from both sides of the stator core 11 in the axial direction.
  • FIG. 3 shows an example in which the three connecting wires 12b are held by the stepped portions 25a to 25c and the stepped portions 26a to 26c.
  • the number of steps in the stepped portion is appropriately set depending on the number of crossover wires 12b.
  • the stepped portions 25a to 25c and the stepped portions 26a to 26c are provided on the radially outer side of the stator core 11 in the split bobbin 20 fitted to the teeth portion 11c.
  • the stepped portions 25a to 25c and the stepped portions 26a to 26c are provided adjacent to each other in the circumferential direction of the stator core 11.
  • the two stepped portions 26a to 26c are provided on both circumferential sides of one stepped portion 25a to 25c, respectively.
  • step portions 26a to 26c may be provided on at least one of the circumferential sides of the step portions 25a to 25c. Further, a plurality of step portions 26a to 26c may be arranged on one side or the other side in the circumferential direction of the step portions 25a to 25c. Furthermore, there may be a plurality of step portions 25a to 25c.
  • the stepped portions 25a to 25c and the stepped portions 26a to 26c face outward in the radial direction of the stator core 11. Further, the step direction (in other words, the inclination direction) of the step portions 25a to 25c is opposite to the step direction (inclination direction) of the step portions 26a to 26c. That is, the stepped portions 25a to 25c and the stepped portions 26a to 26c are opposed to each other in the axial direction of the stator core 11. Further, the circumferential width of the stepped portions 25a to 25c is larger than the circumferential width of the stepped portions 26a to 26c.
  • the crossover wire 12b is held between the stepped portions 25a to 25c and the stepped portions 26a to 26c so as to be sandwiched from both sides of the stator core 11 in the axial direction. Therefore, for example, even if the motor vibrates, the axial fluttering of the crossover wire 12b is suppressed. Therefore, the crossover wire 12b does not fall off from the bobbin 13.
  • the split bobbin 20 can be manufactured by a molding die that does not use a slide core by providing step-like step portions 25a to 25c and step portions 26a to 26c as a structure to prevent the connecting wire 12b from falling off. . Therefore, the split bobbin 20 can suppress extension of cycle time during molding, and can improve productivity.
  • the pins 27a and 27b apply tension to the connecting wire 12b in order to prevent the connecting wire 12b from loosening relative to the stepped portions 25a to 25c and the stepped portions 26a to 26c. Therefore, the pins 27a and 27b are provided on the input side of the split bobbin 20 in the wiring direction of the connecting wire 12b. That is, the pins 27a and 27b are arranged closer to the wiring direction than all the stepped portions 25a to 25c and the stepped portions 26a to 26c.
  • the arrow W shown in FIG. 3B indicates the wiring direction of the crossover wire 12b.
  • the connecting wire 12b When applying tension to the connecting wire 12b, the connecting wire 12b may be wound around at least one pin 27a, 27b. Alternatively, the crossover wire 12b may be sandwiched between the pins 27a and 27b. Note that at least one pin 27a, 27b is sufficient. Further, the installation positions of the pins 27a and 27b can be adjusted as appropriate based on the thickness of the crossover wire 12b, the magnitude of tension, etc.
  • the attachment hole 28 is a hole for attaching the terminal 14 to the split bobbin 20.
  • This attachment hole 28 is formed in the upper surface of the split bobbin 20, which is the surface on one end side in the axial direction.
  • FIG. 3 shows an example in which the attachment hole 28 is formed on the upper surface of the outer coil holding part 21. As shown in FIG.
  • terminals 14 are attached to the divided bobbins 20 that require electrical continuity with other electronic components.
  • the base end of the terminal 14 is attached to the attachment hole 28 of the split bobbin 20, and the tip end of the terminal 14 is electrically inserted into another electronic component. Further, the terminal 14 electrically holds the crossover wire 12b from the coil 12 in the attached split bobbin 20.
  • the terminal 14 is made of copper, for example.
  • the terminal 14 has an arm portion 14a and a notch portion 14b.
  • the arm portion 14a is provided on the side of the terminal 14.
  • This arm portion 14a has a shape like a folded flat plate, and the crossover wire 12b can be inserted into the folded portion in the middle of the arm portion 14a.
  • the cutout portion 14b is formed in the folded portion of the arm portion 14a. This cutout portion 14b is for hooking the crossover wire 12b sandwiched between the arm portions 14a. Therefore, the cutout portion 14b can stabilize the position of the crossover wire 12b sandwiched between the arm portions 14a.
  • the stator 10 includes a stator core 11 having a tooth portion 11c extending inward in the radial direction and a tooth tip portion 11d provided at the tip of the tooth portion 11c, and a coil provided in the tooth portion 11c. 12 is wound, the bobbin 13 faces the radially outer side of the stator core 11, and has step portions 25a to 25c that hold the connecting wires 12b of the coil 12, and radially outer side of the stator core 11. It has step portions 26a to 26c that are formed in a step direction opposite to the step direction of the step portions 25a to 25c and hold the connecting wires 12b, and the step portions 25a to 25c and the step portions 26a to 26c are as follows.
  • stator 10 can prevent the crossover wire 12b from falling off the bobbin 13. As a result, the stator 10 can avoid contact between the dropped crossover wire 12b and other crossover wires 12b, and can suppress the occurrence of electrical short-circuit problems.
  • the step portions 26a to 26c are arranged on both sides of the step portions 25a to 25c in the circumferential direction. Therefore, the stator 10 can hold the crossover wire 12b from both sides in the axial direction in a well-balanced manner.
  • the stator 10 is provided with pins 27a and 27b that are arranged on the inlet side of the connecting wire 12b in the wiring direction than all the stepped portions 25a to 25c and the stepped portions 26a to 26c, and apply tension to the connecting wire 12b. Therefore, the stator 10 can hook the crossover wire 12b onto the stepped portions 25a to 25c and the stepped portions 26a to 26c without slack.
  • any component of the embodiments can be modified or any component of the embodiments can be omitted.
  • a stator core having a tooth portion extending radially inward, and a tooth tip portion provided at the tip of the tooth portion; a bobbin provided on the teeth portion and around which a coil is wound;
  • the bobbin is a first stepped portion facing outward in the radial direction of the stator core and holding the crossover wire of the coil;
  • a second step part that faces radially outward of the stator core, is formed in a step direction opposite to the step direction of the first step part, and holds the crossover wire;
  • the stator wherein the first step portion and the second step portion are arranged adjacent to each other in a circumferential direction of the stator core.
  • a first step portion and a second step portion formed in a step direction opposite to the step direction of the first step portion are arranged adjacent to each other in the circumferential direction of the stator core. This prevents the crossover wire from falling off the bobbin, making it suitable for use in stators, etc.
  • stator 11 stator core, 11a fixed part, 11b screw hole, 11c teeth part, 11d tooth tip, 12 coil, 12a main wire, 12b crossover wire, 13 bobbin, 14 terminal, 14a arm part, 14b notch part, 20 Split bobbin, 21 Outer coil holding part, 22 Inner coil holding part, 23 Coil winding body part, 24 Fitting part, 25a to 25c step part, 26a to 26c step part, 27a, 27b pin, 28 Attachment hole, 30 division Bobbin, 31 outer coil holding part, 32 inner coil holding part, 33 coil winding body, 34 fitting part.

Landscapes

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

Abstract

This stator (10) comprises: a stator core (11) having a teeth section (11c) that extends radially inward and a teeth tip section (11d) provided at the tip of the teeth section (11c); and a bobbin (13) provided to the teeth section (11c) and having a coil (12) wound thereon. The bobbin (13) has: step sections (25a-25c) that face outward in the radial direction of the stator core (11) and hold crossing lines (12b) of the coil (12); and step sections (26a-26c) that face outward in the radial direction of the stator core (11), are formed in a stepping direction opposite to the stepping direction of the step sections (25a-25c), and hold the crossing lines (12b), the step sections (25a-25c) and the step sections (26a-26c) being disposed adjacent to each other in the circumferential direction of the stator core (11).

Description

固定子及びモータStator and motor
　本開示は、固定子及びモータに関する。 The present disclosure relates to a stator and a motor.
　モータの固定子には、周方向に間隔を空けて配置される複数のティース部を有する環状のステータコア、ティース部に導線を巻回して構成されたコイル、及び、ティース部とコイルとの間に介在して電気絶縁を担うボビンを備えたものがある。各コイルの一端は、次のコイルのへの渡り線として、ステータコアの周方向に沿って、ボビンの外側において引き回される場合がある。このような、従来の固定子は、例えば、特許文献１に開示されている。 The stator of the motor includes an annular stator core having a plurality of teeth arranged at intervals in the circumferential direction, a coil formed by winding a conductor around the teeth, and a coil between the teeth and the coil. Some have an intervening bobbin that provides electrical insulation. One end of each coil may be routed outside the bobbin along the circumferential direction of the stator core as a crossover wire to the next coil. Such a conventional stator is disclosed in Patent Document 1, for example.
特開平７－４６７８２号公報Japanese Patent Application Publication No. 7-46782
　特許文献１に開示された固定子は、ボビンの外周面に、段差部を有している。渡り線は、その段差部に保持されている。しかしながら、特許文献１に開示された固定子においては、渡り線が一方向側からしか段差部に保持されていない。このため、例えば、モータが振動した場合、渡り線は、段差部から脱落するおそれがある。この結果、特許文献１に開示された固定子においては、段差部から脱落した渡り線が、他の渡り線と接触し、電気的なショート不具合が発生するという問題がある。 The stator disclosed in Patent Document 1 has a stepped portion on the outer peripheral surface of the bobbin. The crossover wire is held at the stepped portion. However, in the stator disclosed in Patent Document 1, the crossover wire is held at the stepped portion only from one direction. Therefore, for example, when the motor vibrates, the crossover wire may fall off the stepped portion. As a result, in the stator disclosed in Patent Document 1, there is a problem in that the connecting wire that has fallen off from the stepped portion comes into contact with other connecting wires, causing an electrical short-circuit problem.
　本開示は、上記のような課題を解決するためになされたもので、渡り線のボビンからの脱落を抑えることができる固定子を提供することを目的とする。 The present disclosure has been made to solve the above-mentioned problems, and an object of the present disclosure is to provide a stator that can prevent crossover wires from falling off from the bobbin.
　本開示に係る固定子は、径方向内側に延びるティース部と、ティース部の先端に設けられるティース先端部とを有するステータコアと、ティース部に設けられ、コイルが巻回されるボビンとを備え、ボビンは、ステータコアの径方向外側を向き、コイルの渡り線を保持する第１段差部と、ステータコアの径方向外側を向き、第１段差部の段差方向とは逆方向となる段差方向で形成され、渡り線を保持する第２段差部とを有し、第１段差部と第２段差部とは、ステータコアの周方向において、隣接して配置されるものである。 A stator according to the present disclosure includes a stator core having a tooth portion extending inward in the radial direction and a tooth tip portion provided at the tip of the teeth portion, and a bobbin provided on the teeth portion and around which a coil is wound, The bobbin is formed with a first stepped portion facing radially outward of the stator core and holding the crossover wire of the coil, and a step direction facing radially outward of the stator core and opposite to the step direction of the first stepped portion. , and a second step portion that holds the connecting wire, and the first step portion and the second step portion are arranged adjacent to each other in the circumferential direction of the stator core.
　本開示によれば、渡り線のボビンからの脱落を抑えることができる。このため、本開示の固定子は、脱落した渡り線と他の渡り線との接触を回避して、電気的なショート不具合の発生を抑えることができる。この結果、本開示の固定子は、モータの信頼性及び耐久性の向上を図ることができる。 According to the present disclosure, it is possible to prevent the crossover wire from falling off the bobbin. Therefore, the stator of the present disclosure can avoid contact between the dropped crossover wire and other crossover wires, and can suppress the occurrence of electrical short-circuit defects. As a result, the stator of the present disclosure can improve the reliability and durability of the motor.
実施の形態１に係る固定子の斜視図である。1 is a perspective view of a stator according to Embodiment 1. FIG. 実施の形態１に係る固定子を構成するステータコア及びボビンの斜視図である。FIG. 2 is a perspective view of a stator core and a bobbin that constitute the stator according to the first embodiment. 分割ボビンの拡大図である。図３Ａは、分割ボビンが渡り線を保持していない状態を示す斜視図である。図３Ｂは、分割ボビンが渡り線を保持している状態を示す斜視図である。It is an enlarged view of a split bobbin. FIG. 3A is a perspective view showing a state in which the split bobbin does not hold a crossover wire. FIG. 3B is a perspective view showing a state in which the split bobbin holds the connecting wire. ボビンに取り付けられたターミナルの拡大図である。It is an enlarged view of the terminal attached to the bobbin.
　以下、本開示をより詳細に説明するために、本開示を実施するための形態について、添付の図面に従って説明する。 Hereinafter, in order to explain the present disclosure in more detail, embodiments for carrying out the present disclosure will be described with reference to the accompanying drawings.
実施の形態１．
　実施の形態１に係る固定子１０について、図１から図４を用いて説明する。図１は、実施の形態１に係る固定子１０の斜視図である。図２は、実施の形態１に係る固定子１０を構成するステータコア１１及びボビン１３の斜視図である。図３は、分割ボビン２０の拡大図である。図４は、ボビン１３に取り付けられたターミナル１４の拡大図である。 Embodiment 1.
A stator 10 according to Embodiment 1 will be explained using FIGS. 1 to 4. FIG. FIG. 1 is a perspective view of a stator 10 according to the first embodiment. FIG. 2 is a perspective view of the stator core 11 and bobbin 13 that constitute the stator 10 according to the first embodiment. FIG. 3 is an enlarged view of the split bobbin 20. FIG. 4 is an enlarged view of the terminal 14 attached to the bobbin 13.
　図１に示す固定子１０は、モータに設けられている。この固定子１０は、環状に形成されており、モータのハウジング（図示省略）に固定されている。また、固定子１０の径方向内側には、モータの回転子（図示省略）が配置されている。固定子１０は、その回転子を回転可能に支持している。 The stator 10 shown in FIG. 1 is provided in a motor. This stator 10 is formed in an annular shape and is fixed to a motor housing (not shown). Further, a rotor of a motor (not shown) is arranged inside the stator 10 in the radial direction. The stator 10 rotatably supports the rotor.
　図１及び図２に示すように、固定子１０は、ステータコア１１、コイル１２、ボビン１３、及び、ターミナル１４を有している。 As shown in FIGS. 1 and 2, the stator 10 includes a stator core 11, a coil 12, a bobbin 13, and a terminal 14.
　ステータコア１１は、例えば、磁性鋼板を、当該ステータコア１１（モータ）の軸方向に積層することで、構成されるものである。このステータコア１１は、環状に形成されている。また、ステータコア１１は、複数の固定部１１ａ、複数のねじ通し孔１１ｂ、複数のティース部１１ｃ、及び、複数のティース先端部１１ｄを有している。なお、図１及び図２は、ステータコア１１が、４個の固定部１１ａ、４個のねじ通し孔１１ｂ、１２個のティース部１１ｃ、及び、１２個のティース先端部１１ｄを備える例である。 The stator core 11 is constructed by, for example, laminating magnetic steel plates in the axial direction of the stator core 11 (motor). This stator core 11 is formed in an annular shape. Further, the stator core 11 has a plurality of fixing portions 11a, a plurality of screw holes 11b, a plurality of teeth portions 11c, and a plurality of tooth tip portions 11d. 1 and 2 are examples in which the stator core 11 includes four fixing portions 11a, four screw holes 11b, twelve teeth portions 11c, and twelve tooth tip portions 11d.
　固定部１１ａは、ステータコア１１を上記ハウジングに固定するための部位である。この固定部１１ａは、ステータコア１１の外周面から、当該ステータコア１１（モータ）の径方向外側に向けて、突出するように設けられている。また、固定部１１ａは、ステータコア１１（モータ）の周方向において、等間隔で配置されている。 The fixing part 11a is a part for fixing the stator core 11 to the housing. This fixed portion 11a is provided so as to protrude from the outer peripheral surface of the stator core 11 toward the outside in the radial direction of the stator core 11 (motor). Further, the fixed portions 11a are arranged at equal intervals in the circumferential direction of the stator core 11 (motor).
　ねじ通し孔１１ｂは、各固定部１１ａに対して１個ずつ設けられている。ねじ通し孔１１ｂには、ねじ（図示省略）が貫通可能となっている。この貫通したねじは、上記ハウジングのねじ孔に締結可能となっている。 One screw hole 11b is provided for each fixing portion 11a. A screw (not shown) can pass through the screw hole 11b. This penetrating screw can be fastened to the screw hole of the housing.
　ティース部１１ｃは、ステータコア１１の内周面から、当該ステータコア１１（モータ）の径方向内側に向けて、突出するように設けられている。また、ティース部１１ｃは、ステータコア１１の周方向において、等間隔で配置されている。 The teeth portion 11c is provided so as to protrude from the inner peripheral surface of the stator core 11 toward the radial inner side of the stator core 11 (motor). Further, the teeth portions 11c are arranged at equal intervals in the circumferential direction of the stator core 11.
　ティース先端部１１ｄは、磁極を構成するものである。このティース先端部１１ｄは、各ティース部１１ｃの先端にそれぞれ設けられている。即ち、ティース先端部１１ｄは、ティース部１１ｃよりもステータコア１１の径方向内側に配置されている。 The tooth tip portion 11d constitutes a magnetic pole. The tooth tip portion 11d is provided at the tip of each tooth portion 11c. That is, the teeth tip portions 11d are arranged radially inward of the stator core 11 than the teeth portions 11c.
　図１に示すように、コイル１２は、ティース部１１ｃ及びこの先端に設けられるティース先端部１１ｄから成る各組みに対応して、それぞれ１つずつ設けられている。このコイル１２は、後述するボビン１３に、導線を巻回することで構成されている。コイル１２は、ボビン１３を介して、ティース部１１ｃに固定されることで、ティース先端部１１ｄの周囲を囲うように配置される。 As shown in FIG. 1, one coil 12 is provided for each set consisting of a tooth portion 11c and a tooth tip portion 11d provided at the tip thereof. This coil 12 is constructed by winding a conducting wire around a bobbin 13, which will be described later. The coil 12 is fixed to the tooth portion 11c via the bobbin 13, and is arranged so as to surround the tooth tip portion 11d.
　なお、ボビン１３に巻回されてコイル１２を形成する導線を、本線１２ａとする。また、そのボビン１３に巻回された本線１２ａから他のボビン１３又は他の電子部品（図示省略）に向けて所定長さで引き回された導線を、渡り線１２ｂとする。渡り線１２ｂの先端は、本線１２ａの一端又は他端となる。例えば、本線１２ａの一端は、当該本線１２ａの巻き始め端であり、本線１２ａの他端は、当該本線１２ａの巻き終わり端である。 Note that the conductive wire that is wound around the bobbin 13 to form the coil 12 is referred to as a main wire 12a. Further, a conductive wire drawn for a predetermined length from the main wire 12a wound around the bobbin 13 toward another bobbin 13 or another electronic component (not shown) is referred to as a crossover wire 12b. The tip of the crossover wire 12b becomes one end or the other end of the main wire 12a. For example, one end of the main line 12a is the winding start end of the main line 12a, and the other end of the main line 12a is the winding end of the main line 12a.
　図１に示すように、ボビン１３は、ステータコア１１の各ティース部１１ｃに設けられている。このボビン１３は、例えば、絶縁性を有する樹脂材料から形成されている。このため、ボビン１３は、導線を巻回してコイル１２を形成する際の巻き型の役割を果たすと共に、ティース先端部１１ｄとコイル１２との間の電気絶縁を担っている。図２に示すように、ボビン１３は、互いに接続可能となる分割ボビン２０，３０から構成されている。 As shown in FIG. 1, the bobbin 13 is provided on each tooth portion 11c of the stator core 11. This bobbin 13 is made of, for example, an insulating resin material. Therefore, the bobbin 13 serves as a winding die when winding the conductive wire to form the coil 12, and also serves as electrical insulation between the tooth tip portion 11d and the coil 12. As shown in FIG. 2, the bobbin 13 includes divided bobbins 20 and 30 that can be connected to each other.
　分割ボビン２０は、ティース部１１ｃを境にして、ステータコア１１の軸方向一端側に配置されている。この分割ボビン２０は、ティース部１１ｃに対して、ステータコア１１の軸方向一端側から嵌合可能となっている。分割ボビン３０は、ティース部１１ｃを境にして、ステータコア１１の軸方向他端側に配置されている。この分割ボビン３０は、ティース部１１ｃに対して、ステータコア１１の軸方向他端側から嵌合可能となっている。分割ボビン２０，３０は、ティース部１１ｃと嵌合することで、当該ティース部１１ｃをステータコア１１の軸方向両側から挟み込んだ状態で、互いに突き合わされて、ボビン１３を構成する。 The split bobbin 20 is arranged on one axial end side of the stator core 11 with the teeth portion 11c as a boundary. This split bobbin 20 can be fitted into the teeth portion 11c from one end in the axial direction of the stator core 11. The split bobbin 30 is arranged on the other axial end side of the stator core 11 with the teeth portion 11c as a boundary. This split bobbin 30 can be fitted into the teeth portion 11c from the other end in the axial direction of the stator core 11. The split bobbins 20 and 30 are fitted with the teeth portions 11c and abutted against each other with the teeth portions 11c sandwiched from both sides of the stator core 11 in the axial direction, thereby forming the bobbin 13.
　図２及び図３に示すように、分割ボビン２０は、外側コイル保持部２１、内側コイル保持部２２、コイル巻き胴部２３、及び、嵌合部２４を有している。 As shown in FIGS. 2 and 3, the split bobbin 20 has an outer coil holding part 21, an inner coil holding part 22, a coil winding body part 23, and a fitting part 24.
　外側コイル保持部２１は、ティース部１１ｃに嵌合した分割ボビン２０において、ステータコア１１の径方向外側に配置されている。 The outer coil holding part 21 is arranged on the radially outer side of the stator core 11 in the split bobbin 20 fitted to the teeth part 11c.
　内側コイル保持部２２は、ティース部１１ｃに嵌合した分割ボビン２０において、ステータコア１１の径方向内側に配置されている。この内側コイル保持部２２は、外側コイル保持部２１よりも、ステータコア１１の径方向内側に配置されている。 The inner coil holding portion 22 is arranged on the radially inner side of the stator core 11 in the split bobbin 20 fitted to the teeth portion 11c. This inner coil holding portion 22 is arranged radially inward of the stator core 11 than the outer coil holding portion 21 is.
　コイル巻き胴部２３は、外側コイル保持部２１と内側コイル保持部２２との間に設けられている。コイル巻き胴部２３の表面は、コイル１２を形成する導線が巻回される面である。この表面は、ティース部１１ｃにおける軸方向一端側を覆うように形成されている。コイル巻き胴部２３の表面の径方向外側には、当該表面に対して、外側コイル保持部２１の径方向内面が切り立っている。また、その表面の径方向内側には、当該表面に対して、内側コイル保持部２２の径方向外面が切り立っている。 The coil winding trunk 23 is provided between the outer coil holding part 21 and the inner coil holding part 22. The surface of the coil winding body 23 is a surface on which the conductive wire forming the coil 12 is wound. This surface is formed to cover one axial end side of the teeth portion 11c. On the radially outer side of the surface of the coil winding trunk 23, the radially inner surface of the outer coil holding portion 21 is steeply cut relative to the surface. Further, on the radially inner side of the surface, the radially outer surface of the inner coil holding portion 22 is steeply cut relative to the surface.
　嵌合部２４は、ティース部１１ｃにおける軸方向一端側と嵌合する。この嵌合部２４は、コイル巻き胴部２３の裏側に設けられている。 The fitting portion 24 fits with one end in the axial direction of the teeth portion 11c. This fitting portion 24 is provided on the back side of the coiled body portion 23.
　これに対して、図２に示すように、分割ボビン３０は、外側コイル保持部３１、内側コイル保持部３２、コイル巻き胴部３３、及び、嵌合部３４を有している。 On the other hand, as shown in FIG. 2, the split bobbin 30 has an outer coil holding part 31, an inner coil holding part 32, a coil winding body part 33, and a fitting part 34.
　外側コイル保持部３１は、ティース部１１ｃに嵌合した分割ボビン３０において、ステータコア１１の径方向外側に配置されている。そして、外側コイル保持部２１における軸方向他端側の端面と、外側コイル保持部３１における軸方向一端側の端面とは、段差無く突き合わされて接続する。 The outer coil holding part 31 is arranged on the radially outer side of the stator core 11 in the split bobbin 30 fitted to the teeth part 11c. Then, the end surface of the outer coil holding part 21 on the other axial end side and the end face of the outer coil holding part 31 on the one axial end side are butted against each other without a step and are connected.
　内側コイル保持部３２は、ティース部１１ｃに嵌合した分割ボビン３０において、ステータコア１１の径方向内側に配置されている。この内側コイル保持部３２は、外側コイル保持部３１よりも、ステータコア１１の径方向内側に配置されている。そして、内側コイル保持部２２における軸方向他端側の端面と、内側コイル保持部３２における軸方向一端側の端面とは、段差無く突き合わされて接続する。 The inner coil holding portion 32 is arranged on the radially inner side of the stator core 11 in the split bobbin 30 fitted to the teeth portion 11c. This inner coil holding portion 32 is arranged radially inward of the stator core 11 than the outer coil holding portion 31 is. The end surface of the inner coil holding part 22 on the other axial end side and the end face of the inner coil holding part 32 on the one axial end side are butted against each other without a step and are connected.
　コイル巻き胴部３３は、外側コイル保持部３１と内側コイル保持部３２との間に設けられている。コイル巻き胴部３３の表面は、コイル１２を形成する導線が巻回される面である。この表面は、ティース部１１ｃにおける軸方向他端側を覆うように形成されている。コイル巻き胴部３３の表面の径方向外側には、当該表面に対して、外側コイル保持部３１の径方向内面が切り立っている。また、その表面の径方向内側には、当該表面に対して、内側コイル保持部３２の径方向外面が切り立っている。そして、コイル巻き胴部２３における軸方向他端側の端面と、コイル巻き胴部３３における軸方向一端側の端面とは、段差なく突き合わされて接続する。このとき、コイル巻き胴部２３の表面と、コイル巻き胴部３３の表面とは、面一になる。 The coil winding trunk 33 is provided between the outer coil holding part 31 and the inner coil holding part 32. The surface of the coil winding body 33 is a surface on which the conductive wire forming the coil 12 is wound. This surface is formed to cover the other axial end side of the teeth portion 11c. On the radially outer side of the surface of the coil winding trunk 33, the radially inner surface of the outer coil holding portion 31 is steeply cut relative to the surface. Further, on the radially inner side of the surface, a radially outer surface of the inner coil holding portion 32 is steeply cut relative to the surface. Then, the end surface of the coil-wound trunk 23 on the other axial end side and the end surface of the coil-wound trunk 33 on the one axial end side are butted against each other without a step and are connected. At this time, the surface of the coiled trunk 23 and the surface of the coiled trunk 33 are flush with each other.
　嵌合部３４は、ティース部１１ｃにおける軸方向他端側と嵌合する。この嵌合部３４は、コイル巻き胴部３３の裏面に設けられている。そして、嵌合部２４，３４は、ティース部１１ｃを軸方向両側から挟み込んだ状態で、互いに接続する。 The fitting portion 34 fits with the other axial end of the teeth portion 11c. This fitting portion 34 is provided on the back surface of the coiled body portion 33. The fitting portions 24 and 34 are connected to each other while sandwiching the tooth portion 11c from both sides in the axial direction.
　また、図３に示すように、分割ボビン２０は、段差部２５ａ～２５ｃ、段差部２６ａ～２６ｃ、ピン２７ａ，２７ｂ、及び、取り付け孔２８を有している。なお、段差部２５ａ～２５ｃは、第１段差部を構成し、段差部２６ａ～２６ｃは、第２段差部を構成している。 Further, as shown in FIG. 3, the split bobbin 20 has stepped portions 25a to 25c, stepped portions 26a to 26c, pins 27a and 27b, and a mounting hole 28. Note that the step portions 25a to 25c constitute a first step portion, and the step portions 26a to 26c constitute a second step portion.
　段差部２５ａ～２５ｃ及び段差部２６ａ～２６ｃは、１本の渡り線１２ｂをそれぞれ引っ掛けて保持するためのものである。段差部２５ａと段差部２６ａとは対応し、段差部２５ｂと段差部２６ｂとは対応し、段差部２５ｃと段差部２６ｃとは対応している。 The stepped portions 25a to 25c and the stepped portions 26a to 26c are for hooking and holding one crossover wire 12b, respectively. The step portion 25a and the step portion 26a correspond to each other, the step portion 25b and the step portion 26b correspond to each other, and the step portion 25c and the step portion 26c correspond to each other.
　即ち、１本の渡り線１２ｂは、段差部２５ａと段差部２６ａとによって、ステータコア１１の軸方向両側から挟み込まれるように保持される。また、１本の渡り線１２ｂは、段差部２５ｂと段差部２６ｂとによって、ステータコア１１の軸方向両側から挟み込まれるように保持される。更に、１本の渡り線１２ｂは、段差部２５ｃと段差部２６ｃとによって、ステータコア１１の軸方向両側から挟み込まれるように保持される。 That is, one crossover wire 12b is held so as to be sandwiched between the stepped portion 25a and the stepped portion 26a from both sides of the stator core 11 in the axial direction. Moreover, one crossover wire 12b is held so as to be sandwiched between the step portion 25b and the step portion 26b from both sides of the stator core 11 in the axial direction. Further, one crossover wire 12b is held between the stepped portion 25c and the stepped portion 26c so as to be sandwiched from both sides of the stator core 11 in the axial direction.
　なお、図３は、３本の渡り線１２ｂを段差部２５ａ～２５ｃ及び段差部２６ａ～２６ｃによって保持する例を示している。段差部の段数は、渡り線１２ｂの本数に応じて、適宜、設定される。 Note that FIG. 3 shows an example in which the three connecting wires 12b are held by the stepped portions 25a to 25c and the stepped portions 26a to 26c. The number of steps in the stepped portion is appropriately set depending on the number of crossover wires 12b.
　段差部２５ａ～２５ｃ及び段差部２６ａ～２６ｃは、ティース部１１ｃに嵌合した分割ボビン２０において、ステータコア１１の径方向外側に設けられている。段差部２５ａ～２５ｃと段差部２６ａ～２６ｃとは、ステータコア１１の周方向において隣接して設けられている。具体的には、２つの段差部２６ａ～２６ｃは、１つの段差部２５ａ～２５ｃの周方向両側にそれぞれ設けられている。 The stepped portions 25a to 25c and the stepped portions 26a to 26c are provided on the radially outer side of the stator core 11 in the split bobbin 20 fitted to the teeth portion 11c. The stepped portions 25a to 25c and the stepped portions 26a to 26c are provided adjacent to each other in the circumferential direction of the stator core 11. Specifically, the two stepped portions 26a to 26c are provided on both circumferential sides of one stepped portion 25a to 25c, respectively.
　なお、段差部２６ａ～２６ｃは、段差部２５ａ～２５ｃの周方向両側のうち、少なくともいずれか一方側に設けられていれば良い。また、段差部２５ａ～２５ｃの周方向一方側又は他方側に配置される段差部２６ａ～２６ｃは、複数であっても良い。更に、段差部２５ａ～２５ｃは、複数であっても良い。 Note that the step portions 26a to 26c may be provided on at least one of the circumferential sides of the step portions 25a to 25c. Further, a plurality of step portions 26a to 26c may be arranged on one side or the other side in the circumferential direction of the step portions 25a to 25c. Furthermore, there may be a plurality of step portions 25a to 25c.
　段差部２５ａ～２５ｃ及び段差部２６ａ～２６ｃは、ステータコア１１の径方向外側を向いている。また、段差部２５ａ～２５ｃの段差方向（言い換えれば、傾斜方向）と、段差部２６ａ～２６ｃの段差方向（傾斜方向）とは、逆方向となっている。即ち、段差部２５ａ～２５ｃと段差部２６ａ～２６ｃとは、ステータコア１１の軸方向において、対向している。更に、段差部２５ａ～２５ｃにおける周方向の幅寸法は、段差部２６ａ～２６ｃにおける周方向の幅寸法よりも大きくなっている。 The stepped portions 25a to 25c and the stepped portions 26a to 26c face outward in the radial direction of the stator core 11. Further, the step direction (in other words, the inclination direction) of the step portions 25a to 25c is opposite to the step direction (inclination direction) of the step portions 26a to 26c. That is, the stepped portions 25a to 25c and the stepped portions 26a to 26c are opposed to each other in the axial direction of the stator core 11. Further, the circumferential width of the stepped portions 25a to 25c is larger than the circumferential width of the stepped portions 26a to 26c.
　これに対して、渡り線１２ｂは、段差部２５ａ～２５ｃ及び段差部２６ａ～２６ｃによって、ステータコア１１の軸方向両側から挟み込まれるように保持される。このため、例えば、モータが振動しても、渡り線１２ｂの軸方向へのばたつきは、抑制される。このため、渡り線１２ｂは、ボビン１３から脱落することは無い。また、分割ボビン２０は、階段状となる段差部２５ａ～２５ｃ及び段差部２６ａ～２６ｃを、渡り線１２ｂの脱落防止構造として備えることで、スライドコアを使用しない成形金型によって、製造可能となる。このため、分割ボビン２０は、成形時のサイクルタイムの延長化を抑制することができ、生産性の向上を図ることができる。 On the other hand, the crossover wire 12b is held between the stepped portions 25a to 25c and the stepped portions 26a to 26c so as to be sandwiched from both sides of the stator core 11 in the axial direction. Therefore, for example, even if the motor vibrates, the axial fluttering of the crossover wire 12b is suppressed. Therefore, the crossover wire 12b does not fall off from the bobbin 13. In addition, the split bobbin 20 can be manufactured by a molding die that does not use a slide core by providing step-like step portions 25a to 25c and step portions 26a to 26c as a structure to prevent the connecting wire 12b from falling off. . Therefore, the split bobbin 20 can suppress extension of cycle time during molding, and can improve productivity.
　ピン２７ａ，２７ｂは、渡り線１２ｂの段差部２５ａ～２５ｃ及び段差部２６ａ～２６ｃに対する弛みを抑えるため、当該渡り線１２ｂに張力を付与するものである。このため、ピン２７ａ，２７ｂは、分割ボビン２０における渡り線１２ｂの配線方向入側に設けられている。即ち、ピン２７ａ，２７ｂは、全ての段差部２５ａ～２５ｃ及び段差部２６ａ～２６ｃよりも配線方向入側に配置されている。図３Ｂに示すＷの矢印は、渡り線１２ｂの配線方向を示している。 The pins 27a and 27b apply tension to the connecting wire 12b in order to prevent the connecting wire 12b from loosening relative to the stepped portions 25a to 25c and the stepped portions 26a to 26c. Therefore, the pins 27a and 27b are provided on the input side of the split bobbin 20 in the wiring direction of the connecting wire 12b. That is, the pins 27a and 27b are arranged closer to the wiring direction than all the stepped portions 25a to 25c and the stepped portions 26a to 26c. The arrow W shown in FIG. 3B indicates the wiring direction of the crossover wire 12b.
　渡り線１２ｂに張力を付与する場合、渡り線１２ｂを、少なくとも１本のピン２７ａ，２７ｂに巻きつければ良い。また、渡り線１２ｂを、ピン２７ａ，２７ｂ間に挟み込んでも良い。なお、ピン２７ａ，２７ｂは、少なくとも１本あれば良い。また、ピン２７ａ，２７ｂの設置位置は、渡り線１２ｂの太さ、及び、張力の大きさ等に基づいて、適宜、調整可能である。 When applying tension to the connecting wire 12b, the connecting wire 12b may be wound around at least one pin 27a, 27b. Alternatively, the crossover wire 12b may be sandwiched between the pins 27a and 27b. Note that at least one pin 27a, 27b is sufficient. Further, the installation positions of the pins 27a and 27b can be adjusted as appropriate based on the thickness of the crossover wire 12b, the magnitude of tension, etc.
　取り付け孔２８は、ターミナル１４を分割ボビン２０に取り付けるための孔である。この取り付け孔２８は、分割ボビン２０における軸方向一端側の面となる上面に形成されている。図３は、取り付け孔２８が外側コイル保持部２１の上面に形成される例を示している。 The attachment hole 28 is a hole for attaching the terminal 14 to the split bobbin 20. This attachment hole 28 is formed in the upper surface of the split bobbin 20, which is the surface on one end side in the axial direction. FIG. 3 shows an example in which the attachment hole 28 is formed on the upper surface of the outer coil holding part 21. As shown in FIG.
　ここで、図１に示すように、複数の分割ボビン２０の中でも、他の電子部品との間において電気的な導通が必要となる分割ボビン２０には、ターミナル１４が取り付けられている。ターミナル１４の基端が、分割ボビン２０の取り付け孔２８に取り付けられ、ターミナル１４の先端は、他の電子部品に電気的に差し込まれる。また、ターミナル１４は、取り付けられた分割ボビン２０におけるコイル１２からの渡り線１２ｂを、電気的に保持する。このような、ターミナル１４は、例えば、銅で形成されている。 Here, as shown in FIG. 1, among the plurality of divided bobbins 20, terminals 14 are attached to the divided bobbins 20 that require electrical continuity with other electronic components. The base end of the terminal 14 is attached to the attachment hole 28 of the split bobbin 20, and the tip end of the terminal 14 is electrically inserted into another electronic component. Further, the terminal 14 electrically holds the crossover wire 12b from the coil 12 in the attached split bobbin 20. The terminal 14 is made of copper, for example.
　図４に示すように、ターミナル１４は、腕部１４ａ及び切り欠き部１４ｂを有している。腕部１４ａは、ターミナル１４の側部に設けられている。この腕部１４ａは、平板を折り返したような形状をなしており、その途中部分の折り返し部分で、渡り線１２ｂを挟み込み可能となっている。切り欠き部１４ｂは、腕部１４ａの折り返し部分に形成されている。この切り欠き部１４ｂは、腕部１４ａに挟み込まれた渡り線１２ｂを引っ掛けるものである。このため、切り欠き部１４ｂは、腕部１４ａに挟み込まれた渡り線１２ｂの位置を安定させることができる。 As shown in FIG. 4, the terminal 14 has an arm portion 14a and a notch portion 14b. The arm portion 14a is provided on the side of the terminal 14. This arm portion 14a has a shape like a folded flat plate, and the crossover wire 12b can be inserted into the folded portion in the middle of the arm portion 14a. The cutout portion 14b is formed in the folded portion of the arm portion 14a. This cutout portion 14b is for hooking the crossover wire 12b sandwiched between the arm portions 14a. Therefore, the cutout portion 14b can stabilize the position of the crossover wire 12b sandwiched between the arm portions 14a.
　以上、実施の形態１に係る固定子１０は、径方向内側に延びるティース部１１ｃと、ティース部１１ｃの先端に設けられるティース先端部１１ｄとを有するステータコア１１と、ティース部１１ｃに設けられ、コイル１２が巻回されるボビン１３とを備え、ボビン１３は、ステータコア１１の径方向外側を向き、コイル１２の渡り線１２ｂを保持する段差部２５ａ～２５ｃと、ステータコア１１の径方向外側を向き、段差部２５ａ～２５ｃの段差方向とは逆方向となる段差方向で形成され、渡り線１２ｂを保持する段差部２６ａ～２６ｃとを有し、段差部２５ａ～２５ｃと段差部２６ａ～２６ｃとは、ステータコア１１の周方向において、隣接して配置される。このため、固定子１０は、渡り線１２ｂのボビン１３からの脱落を抑えることができる。この結果、固定子１０は、脱落した渡り線１２ｂと他の渡り線１２ｂとの接触を回避して、電気的なショート不具合の発生を抑えることができる。 As described above, the stator 10 according to the first embodiment includes a stator core 11 having a tooth portion 11c extending inward in the radial direction and a tooth tip portion 11d provided at the tip of the tooth portion 11c, and a coil provided in the tooth portion 11c. 12 is wound, the bobbin 13 faces the radially outer side of the stator core 11, and has step portions 25a to 25c that hold the connecting wires 12b of the coil 12, and radially outer side of the stator core 11. It has step portions 26a to 26c that are formed in a step direction opposite to the step direction of the step portions 25a to 25c and hold the connecting wires 12b, and the step portions 25a to 25c and the step portions 26a to 26c are as follows. They are arranged adjacent to each other in the circumferential direction of stator core 11 . Therefore, the stator 10 can prevent the crossover wire 12b from falling off the bobbin 13. As a result, the stator 10 can avoid contact between the dropped crossover wire 12b and other crossover wires 12b, and can suppress the occurrence of electrical short-circuit problems.
　固定子１０においては、段差部２６ａ～２６ｃは、段差部２５ａ～２５ｃの周方向両側に配置される。このため、固定子１０は、渡り線１２ｂをバランス良く軸方向両側から保持することができる。 In the stator 10, the step portions 26a to 26c are arranged on both sides of the step portions 25a to 25c in the circumferential direction. Therefore, the stator 10 can hold the crossover wire 12b from both sides in the axial direction in a well-balanced manner.
　固定子１０は、全ての段差部２５ａ～２５ｃ及び段差部２６ａ～２６ｃよりも渡り線１２ｂの配線方向入側に配置され、渡り線１２ｂに張力を付与するピン２７ａ，２７ｂを備える。このため、固定子１０は、渡り線１２ｂを弛みなく段差部２５ａ～２５ｃ及び段差部２６ａ～２６ｃに引っ掛けることができる。 The stator 10 is provided with pins 27a and 27b that are arranged on the inlet side of the connecting wire 12b in the wiring direction than all the stepped portions 25a to 25c and the stepped portions 26a to 26c, and apply tension to the connecting wire 12b. Therefore, the stator 10 can hook the crossover wire 12b onto the stepped portions 25a to 25c and the stepped portions 26a to 26c without slack.
　なお、本開示はその開示の範囲内において、実施の形態の任意の構成要素の変形、もしくは実施の形態の任意の構成要素の省略が可能である。 Note that within the scope of the present disclosure, any component of the embodiments can be modified or any component of the embodiments can be omitted.
　以下、本開示の諸態様を付記としてまとめて記載する。 Hereinafter, various aspects of the present disclosure will be collectively described as supplementary notes.
　　（付記１）
　径方向内側に延びるティース部と、前記ティース部の先端に設けられるティース先端部とを有するステータコアと、
　前記ティース部に設けられ、コイルが巻回されるボビンとを備え、
　前記ボビンは、
　前記ステータコアの径方向外側を向き、前記コイルの渡り線を保持する第１段差部と、
　前記ステータコアの径方向外側を向き、前記第１段差部の段差方向とは逆方向となる段差方向で形成され、前記渡り線を保持する第２段差部とを有し、
　前記第１段差部と前記第２段差部とは、前記ステータコアの周方向において、隣接して配置される
　ことを特徴とする固定子。
　　（付記２）
　前記第２段差部は、前記第１段差部の周方向両側に配置される
　ことを特徴とする付記１記載の固定子。
　　（付記３）
　全ての第１段差部及び第２段差部よりも前記渡り線の配線方向入側に配置され、前記渡り線に張力を付与するピンを備える
　ことを特徴とする付記１又は付記２記載の固定子。
　　（付記４）
　付記１から付記３のうちのいずれか１付記記載の固定子を備える
　ことを特徴とするモータ。 (Additional note 1)
a stator core having a tooth portion extending radially inward, and a tooth tip portion provided at the tip of the tooth portion;
a bobbin provided on the teeth portion and around which a coil is wound;
The bobbin is
a first stepped portion facing outward in the radial direction of the stator core and holding the crossover wire of the coil;
a second step part that faces radially outward of the stator core, is formed in a step direction opposite to the step direction of the first step part, and holds the crossover wire;
The stator, wherein the first step portion and the second step portion are arranged adjacent to each other in a circumferential direction of the stator core.
(Additional note 2)
The stator according to appendix 1, wherein the second step portion is disposed on both circumferential sides of the first step portion.
(Additional note 3)
The stator according to supplementary note 1 or supplementary note 2, further comprising a pin that is arranged on the inlet side in the wiring direction of the crossover wire than all the first step portions and the second step portions, and that applies tension to the crossover wire. .
(Additional note 4)
A motor comprising a stator as described in any one of Supplementary Notes 1 to 3.
　本開示に係る固定子は、第１段差部と、第１段差部の段差方向とは逆方向となる段差方向で形成される第２段差部とを、ステータコアの周方向において隣接して配置することで、渡り線のボビンからの脱落を抑えることができ、固定子等に用いるのに適している。 In the stator according to the present disclosure, a first step portion and a second step portion formed in a step direction opposite to the step direction of the first step portion are arranged adjacent to each other in the circumferential direction of the stator core. This prevents the crossover wire from falling off the bobbin, making it suitable for use in stators, etc.
　１０　固定子、１１　ステータコア、１１ａ　固定部、１１ｂ　ねじ通し孔、１１ｃ　ティース部、１１ｄ　ティース先端部、１２　コイル、１２ａ　本線、１２ｂ　渡り線、１３　ボビン、１４　ターミナル、１４ａ　腕部、１４ｂ　切り欠き部、２０　分割ボビン、２１　外側コイル保持部、２２　内側コイル保持部、２３　コイル巻き胴部、２４　嵌合部、２５ａ～２５ｃ段差部、２６ａ～２６ｃ　段差部、２７ａ，２７ｂ　ピン、２８　取り付け孔、３０　分割ボビン、３１　外側コイル保持部、３２　内側コイル保持部、３３　コイル巻き胴部、３４　嵌合部。 10 stator, 11 stator core, 11a fixed part, 11b screw hole, 11c teeth part, 11d tooth tip, 12 coil, 12a main wire, 12b crossover wire, 13 bobbin, 14 terminal, 14a arm part, 14b notch part, 20 Split bobbin, 21 Outer coil holding part, 22 Inner coil holding part, 23 Coil winding body part, 24 Fitting part, 25a to 25c step part, 26a to 26c step part, 27a, 27b pin, 28 Attachment hole, 30 division Bobbin, 31 outer coil holding part, 32 inner coil holding part, 33 coil winding body, 34 fitting part.

Claims (4)

  1. 　径方向内側に延びるティース部と、前記ティース部の先端に設けられるティース先端部とを有するステータコアと、
    　前記ティース部に設けられ、コイルが巻回されるボビンとを備え、
    　前記ボビンは、
    　前記ステータコアの径方向外側を向き、前記コイルの渡り線を保持する第１段差部と、
    　前記ステータコアの径方向外側を向き、前記第１段差部の段差方向とは逆方向となる段差方向で形成され、前記渡り線を保持する第２段差部とを有し、
    　前記第１段差部と前記第２段差部とは、前記ステータコアの周方向において、隣接して配置される
    　ことを特徴とする固定子。     a stator core having a tooth portion extending radially inward, and a tooth tip portion provided at the tip of the tooth portion;
    a bobbin provided on the teeth portion and around which a coil is wound;
    The bobbin is
    a first stepped portion facing outward in the radial direction of the stator core and holding the crossover wire of the coil;
    a second step part that faces radially outward of the stator core, is formed in a step direction opposite to the step direction of the first step part, and holds the crossover wire;
    The stator, wherein the first step portion and the second step portion are arranged adjacent to each other in a circumferential direction of the stator core.
  2. 　前記第２段差部は、前記第１段差部の周方向両側に配置される
    　ことを特徴とする請求項１記載の固定子。     The stator according to claim 1, wherein the second step portion is arranged on both circumferential sides of the first step portion.
  3. 　全ての第１段差部及び第２段差部よりも前記渡り線の配線方向入側に配置され、前記渡り線に張力を付与するピンを備える
    　ことを特徴とする請求項１記載の固定子。     The stator according to claim 1, further comprising a pin that is arranged on the inlet side of the crossover wire in the wiring direction than all of the first step portions and the second step portions, and that applies tension to the crossover wire.
  4. 　請求項１から請求項３のうちのいずれか１項記載の固定子を備える
    　ことを特徴とするモータ。     A motor comprising the stator according to any one of claims 1 to 3.
PCT/JP2022/018647 2022-04-25 2022-04-25 Stator and motor WO2023209750A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2022/018647 WO2023209750A1 (en) 2022-04-25 2022-04-25 Stator and motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2022/018647 WO2023209750A1 (en) 2022-04-25 2022-04-25 Stator and motor

Publications (1)

Publication Number Publication Date
WO2023209750A1 true WO2023209750A1 (en) 2023-11-02

Family

ID=88518051

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2022/018647 WO2023209750A1 (en) 2022-04-25 2022-04-25 Stator and motor

Country Status (1)

Country Link
WO (1) WO2023209750A1 (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0746782A (en) * 1993-07-22 1995-02-14 Japan Servo Co Ltd Stator of motor
JP2009213343A (en) * 2007-10-26 2009-09-17 Nitto Kohki Co Ltd Stator
JP2013201820A (en) * 2012-03-23 2013-10-03 Denso Corp Brushless motor, method for manufacturing the same, and fuel pump using the same
JP2015109719A (en) * 2013-12-03 2015-06-11 アスモ株式会社 Stator
WO2017154625A1 (en) * 2016-03-10 2017-09-14 日立オートモティブシステムズ株式会社 Electric fluid pump
WO2019004116A1 (en) * 2017-06-29 2019-01-03 日本電産株式会社 Stator, motor, and stator manufacturing method
CN110875666A (en) * 2018-09-03 2020-03-10 布莱克曼两合公司 Electrical machine with stator formed by a pole chain and with contactless wiring of enamelled aluminium wires
JP2020096465A (en) * 2018-12-13 2020-06-18 株式会社デンソー Rotary electric machine
JP2021065027A (en) * 2019-10-15 2021-04-22 日立グローバルライフソリューションズ株式会社 Insulator bobbin, electric motor with the same and apparatus

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0746782A (en) * 1993-07-22 1995-02-14 Japan Servo Co Ltd Stator of motor
JP2009213343A (en) * 2007-10-26 2009-09-17 Nitto Kohki Co Ltd Stator
JP2013201820A (en) * 2012-03-23 2013-10-03 Denso Corp Brushless motor, method for manufacturing the same, and fuel pump using the same
JP2015109719A (en) * 2013-12-03 2015-06-11 アスモ株式会社 Stator
WO2017154625A1 (en) * 2016-03-10 2017-09-14 日立オートモティブシステムズ株式会社 Electric fluid pump
WO2019004116A1 (en) * 2017-06-29 2019-01-03 日本電産株式会社 Stator, motor, and stator manufacturing method
CN110875666A (en) * 2018-09-03 2020-03-10 布莱克曼两合公司 Electrical machine with stator formed by a pole chain and with contactless wiring of enamelled aluminium wires
JP2020096465A (en) * 2018-12-13 2020-06-18 株式会社デンソー Rotary electric machine
JP2021065027A (en) * 2019-10-15 2021-04-22 日立グローバルライフソリューションズ株式会社 Insulator bobbin, electric motor with the same and apparatus

Similar Documents

Publication Publication Date Title
US6674195B2 (en) Electric motor with improved terminal connector
US7808137B2 (en) Single track layer stator terminal assembly
US6800973B2 (en) Stator winding connection arrangement for electric motor
US7576467B2 (en) Armature and motor on which the armature is mounted
CN108282045B (en) Motor stator wiring fixing device
US20100141067A1 (en) Rotating electrical machine
EP2369722A2 (en) Stator for rotary electrical machine
US20060238044A1 (en) Slack-forming mechanism for stator coil
JP3420423B2 (en) Coil component and motor using the coil component
JP2020089160A (en) Wire fixing structure, electric connection box, and wiring harness
US8125115B2 (en) End turn phase insulator with a lead wire restraining tab and method of restraining lead wires on dynamoelectric devices
WO2023209750A1 (en) Stator and motor
JP2000134844A (en) Motor
US20050231050A1 (en) Motor
JP2002272050A (en) Resolver stator structure
JP3550755B2 (en) Magnet generator stator
WO2018220936A1 (en) Motor
WO2018139728A1 (en) Inductor and inductor manufacturing method
JP6892953B2 (en) motor
US11418082B2 (en) Stator used for motor and method for manufacturing said stator
JP2019140871A (en) Stator structure of resolver and resolver
JP6684749B2 (en) motor
JPH04244757A (en) Coil bobbin for small-sized motor
JPH05328651A (en) Coil bobbin
JPH1189152A (en) Stator, and motor using the stator

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22940031

Country of ref document: EP

Kind code of ref document: A1