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WO2021260808A1 - Rotating electric machine insulator - Google Patents

Rotating electric machine insulator Download PDF

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Publication number
WO2021260808A1
WO2021260808A1 PCT/JP2020/024658 JP2020024658W WO2021260808A1 WO 2021260808 A1 WO2021260808 A1 WO 2021260808A1 JP 2020024658 W JP2020024658 W JP 2020024658W WO 2021260808 A1 WO2021260808 A1 WO 2021260808A1
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WO
WIPO (PCT)
Prior art keywords
laminated core
insulator
coil
protrusion
electric machine
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2020/024658
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French (fr)
Japanese (ja)
Inventor
公貴 能勢
郷 井口
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to PCT/JP2020/024658 priority Critical patent/WO2021260808A1/en
Publication of WO2021260808A1 publication Critical patent/WO2021260808A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
    • 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

  • This disclosure relates to an insulator of a rotary electric machine.
  • Patent Document 1 discloses an example of an insulator of an electric motor.
  • the laminated core of the electric motor has teeth facing in a direction orthogonal to the laminating direction.
  • the insulator is fitted into the tooth portion of the laminated core.
  • the insulator of Patent Document 1 is fitted into the tooth portion of the laminated core from the tip side. Therefore, rattling in the stacking direction may occur due to a stacking error of the laminated core or a molding error of the insulator.
  • the present disclosure provides an insulator for a rotary electric machine in which rattling is less likely to occur in the stacking direction of the laminated core.
  • the insulator of the rotary electric machine according to the present disclosure is wound on the laminated core from both sides in the first direction orthogonal to the stacking direction of the laminated core of the rotary electric machine and the central axis direction of the coil of the rotary electric machine, and the coil is wound.
  • a pair of split insulating members forming a portion are provided, and each of the pair of split insulating members is provided at at least one of a first end portion and a second end portion facing each other in the first direction and projects toward the laminated core. , Equipped with protrusions that come into contact with the laminated core.
  • FIG. 1 It is a partial perspective view of the stator of the rotary electric machine which concerns on Embodiment 1.
  • FIG. It is an exploded perspective view of the insulator which concerns on Embodiment 1.
  • FIG. It is an enlarged view of the main part of the laminated core which concerns on Embodiment 1.
  • FIG. It is a perspective view of the insulator which concerns on Embodiment 1.
  • FIG. It is a perspective view of the insulator which concerns on Embodiment 1.
  • FIG. It is an enlarged view of the main part of the insulator which concerns on Embodiment 1.
  • FIG. 1 is a partial perspective view of the stator 1 of the rotary electric machine according to the first embodiment.
  • the rotary electric machine is, for example, an electric machine.
  • the motor includes a stator 1.
  • the stator 1 includes a laminated core 2, a plurality of coils 3, and a plurality of insulators 4.
  • FIG. 1 a perspective view of a part of the annular stator 1 is shown.
  • the laminated core 2 is formed by laminating, for example, an annular steel plate.
  • the stacking direction of the laminated core 2 is, for example, the axial direction of the laminated core 2.
  • the laminated core 2 has a plurality of teeth 5 facing inward.
  • Each coil 3 corresponds to any tooth portion 5.
  • the coil 3 and the tooth portion 5 have a one-to-one correspondence.
  • the central axis of each coil 3 is provided coaxially with the central axis of the corresponding tooth portion 5.
  • the central axis of each coil 3 faces the inside of the laminated core 2.
  • the central axis direction of the coil 3 is orthogonal to the stacking direction of the laminated core 2.
  • the direction of the central axis of the coil 3 is, for example, the radial direction of the laminated core 2.
  • Each insulator 4 corresponds to any tooth portion 5.
  • Each insulator 4 corresponds to any coil 3.
  • the insulator 4, the tooth portion 5, and the coil 3 each have a one-to-one correspondence.
  • Each insulator 4 is attached to a corresponding tooth portion 5.
  • Each insulator 4 has a winding portion 6 and a collar 7.
  • the corresponding coil 3 is wound around the winding portion 6.
  • the collar 7 is provided at the end of the winding portion 6.
  • the collar 7 is arranged on the distal end side of the corresponding tooth portion 5.
  • Each insulator 4 is a portion that insulates between the laminated core 2 and the coil 3 by a winding portion 6 or the like.
  • Each insulator 4 prevents the coil 3 from falling off from the laminated core 2 by means of a flange 7 or the like.
  • Each insulator 4 includes a pair of split insulating members 8.
  • Each of the divided insulating members 8 is a member that covers the tooth portions 5 from both sides in the circumferential direction of the laminated core 2.
  • the circumferential direction of the laminated core 2 is an example of the first direction.
  • the circumferential direction of the laminated core 2 is orthogonal to the laminated direction of the laminated core 2 and the central axis direction of the coil 3.
  • Each of the divided insulating members 8 is put on the corresponding tooth portion 5 to form the wound portion 6.
  • Each split insulating member 8 is formed of an insulating material.
  • Each split insulating member 8 is formed of an elastic material such as resin.
  • FIG. 2 is an exploded perspective view of the insulator 4 according to the first embodiment.
  • Each split insulating member 8 has a first end portion 9 and a second end portion 10 facing each other in the circumferential direction of the laminated core 2.
  • the first end portion 9 is an end portion arranged on one side of the laminated core 2 in the stacking direction.
  • the second end portion 10 is an end portion arranged on the other side of the laminated core 2 in the stacking direction.
  • Each split insulating member 8 has a protrusion 11 at the first end portion 9.
  • the protrusion 11 is a portion that protrudes toward the laminated core 2 in the axial direction of the laminated core 2.
  • the protrusion 11 is a claw that protrudes toward the laminated core 2.
  • Each split insulating member 8 has a coupling portion 12 at the second end portion 10.
  • the coupling portion 12 is a portion that bonds the pair of split insulating members 8 to each other.
  • a coupling projection 13 is provided as a coupling portion 12.
  • a coupling hole 14 is provided as a coupling portion 12 in the second end portion 10 of the other split insulating member 8.
  • the coupling protrusion 13 is a protrusion that protrudes toward the laminated core 2.
  • the pair of split insulating members 8 are coupled to each other by fitting the coupling projections 13 into the coupling holes 14.
  • Each split insulating member 8 has a ridge portion 15.
  • the ridge portion 15 is provided in the winding portion 6.
  • the ridge portion 15 is long in the central axis direction of the coil 3. In this example, the ridge portion 15 extends over the entire length of the winding portion 6 in the central axial direction of the coil 3.
  • the ridge portion 15 is provided outside the protrusion 11 in the circumferential direction of the laminated core 2 in which the insulator 4 is divided into a pair of divided insulating members 8.
  • the height of the ridge portion 15 in the axial direction of the laminated core 2 is higher than that of the protrusion 11.
  • FIG. 3 is an enlarged view of a main part of the laminated core 2 according to the first embodiment.
  • FIG. 3 shows an enlarged view of the tooth portion 5 of the laminated core 2.
  • a recess 16 is provided at the end face of the tooth portion 5 of the laminated core 2 in the laminated direction.
  • the recess 16 is an example of the second recess.
  • the tooth portion 5 of the laminated core 2 has a collar 17.
  • the collar 17 is arranged on the tip end side of the tooth portion 5.
  • FIG. 4 is a perspective view of the insulator 4 according to the first embodiment.
  • the insulator 4 attached to the tooth portion 5 is shown.
  • FIG. 4 is a perspective view seen from the second end portion 10 side of the split insulating member 8. Further, in FIG. 4, a cross section including the stacking direction of the laminated core 2 and passing through the coupling portion 12 is shown.
  • the pair of split insulating members 8 are coupled to each other by the connecting portion 12 of the second end portion 10 with the corresponding tooth portions 5 arranged in between.
  • the pair of split insulating members 8 are coupled to each other by fitting the coupling projections 13 into the coupling holes 14.
  • the pair of split insulating members 8 are attached so as to cover the tooth portions 5 corresponding to the insulator 4 from both sides in the circumferential direction of the laminated core 2.
  • FIG. 5 is a perspective view of the insulator 4 according to the first embodiment.
  • the insulator 4 attached to the tooth portion 5 is shown.
  • FIG. 5 is a perspective view seen from the first end 9 side of the split insulating member 8. Further, in FIG. 5, a cross section including the stacking direction of the laminated core 2 and passing through the protrusion 11 is shown.
  • the protrusion 11 When the insulator 4 is attached to the tooth portion 5, the protrusion 11 is elastically deformed in the stacking direction by coming into contact with the end face of the corresponding laminated core 2 in the stacking direction. When the insulator 4 is attached to the tooth portion 5, the protrusion 11 enters the recess 16 and comes into contact with the corresponding laminated core 2. That is, the tooth portions 5 of the insulator 4 and the laminated core 2 are attached by a snap fit by the protrusions 11 and the recesses 16.
  • FIG. 6 is a cross-sectional view of the insulator 4 according to the first embodiment.
  • FIG. 6 shows a cross section similar to that in FIG. 5, including the stacking direction of the laminated core 2 and passing through the protrusion 11.
  • the protrusion 11 comes into contact with the bottom surface of the recess 16.
  • the protrusion 11 may be pressed against the bottom surface of the recess 16 by the elasticity of the split insulating member 8.
  • a groove 18 is formed between the ridge portions 15 of the pair of split insulating members 8 in the winding portion 6.
  • the groove 18 is an example of a first recess that is recessed inward from the coil 3.
  • the protrusion 11 is arranged on the bottom surface of the groove 18. That is, the protrusion 11 is arranged between the ridges 15 of the pair of split insulating members 8.
  • the depth of the groove 18 is a depth capable of insulating between the coil 3 and the laminated core 2.
  • FIG. 7 is an enlarged view of a main part of the insulator 4 according to the first embodiment.
  • a notch 19 is provided adjacent to the protrusion 11 along the circumferential direction of the laminated core 2.
  • split insulating member 8 does not have to be provided with the notch 19 adjacent to the protrusion 11.
  • the joint hole 14 does not have to be a through hole.
  • the connecting portion 12 may connect the pair of divided insulating members 8 to each other by means of a claw, a recess, or the like.
  • the split insulating member 8 may not be provided with the coupling portion 12.
  • the protrusions 11 may be provided on both the first end portion 9 and the second end portion 10.
  • first recess does not have to be a groove 18 over the entire length of the winding portion 6 in the central axis direction of the coil 3.
  • the first recess may be a recessed portion only around the protrusion 11.
  • end faces of the first end portion 9 and the second end portion 10 do not have to be perpendicular to the first direction.
  • the end faces of the first end portion 9 and the second end portion 10 may be inclined with respect to the direction along the central axis direction of the coil 3.
  • the insulator 4 includes a pair of split insulating members 8.
  • the pair of dividing members are covered on the laminated core 2 from both sides in the first direction.
  • the first direction is orthogonal to the stacking direction of the laminated core 2 and the central axis direction of the coil 3.
  • the pair of split members form a winding portion 6 around which the coil 3 is wound.
  • Each of the divided insulating members 8 has a protrusion 11.
  • the protrusion 11 is provided on at least one of the first end 9 and the second end 10.
  • the first end portion 9 and the second end portion 10 are portions facing each other in the first direction.
  • the protrusion 11 is a portion that protrudes toward the laminated core 2.
  • the protrusion 11 comes into contact with the laminated core 2.
  • the insulator 4 having such a configuration, since the protrusion 11 comes into contact with the laminated core 2, a lamination error or a molding error of the divided insulating member 8 is absorbed. As a result, rattling in the stacking direction of the laminated core 2 is unlikely to occur. Further, since the split insulating member 8 is placed on the tooth portions 5 of the laminated core 2 from both sides in the first direction, the insulator 4 can also be applied to the laminated core 2 having a flange 17 on the tooth portions 5.
  • the protrusion 11 is arranged in the first recess that is recessed inward from the coil 3 in the winding portion 6.
  • the protrusion 11 is deformed by contacting the end surface of the laminated core 2 in the stacking direction, the protrusion 11 is less likely to come into contact with the coil 3. This makes the coil 3 less likely to be damaged. Further, since the distance between the laminated core 2 and the coil 3 is secured, the insulation performance between the laminated core 2 and the coil 3 is ensured.
  • the protrusion 11 contacts the second recess provided on the end face in the stacking direction in the laminated core 2.
  • the protrusion 11 functions as a claw that hangs on the second recess. Therefore, the insulator 4 is prevented from falling off in the first direction. Further, the insulator 4 can be easily attached to the laminated core 2.
  • each of the divided insulating members 8 a protrusion 11 is provided on one of the first end portion 9 and the second end portion 10.
  • a coupling portion 12 is provided on the other side of the first end portion 9 and the second end portion 10. The coupling portion 12 couples the pair of split insulating members 8 to each other.
  • the coupling portion 12 prevents the insulator 4 from falling off in the first direction. Further, the insulator 4 can be easily attached to the laminated core 2.
  • the insulator according to this disclosure can be applied to rotary electric machines.
  • stator 1 stator, 2 laminated core, 3 coil, 4 insulator, 5 tooth part, 6 winding part, 7 collar, 8 split insulating member, 9 1st end, 10 2nd end, 11 protrusion, 12 joint, 13 coupling protrusions, 14 coupling holes, 15 ridges, 16 dents, 17 collars, 18 grooves, 19 notches

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

Abstract

Provided is a rotating electric machine insulator with which backlash hardly occurs in the lamination direction of a laminated core. The insulator (4) is provided with a pair of divided insulating members (8). A pair of divided members are made to cover a laminated core (2) from both sides in a first direction. The first direction is orthogonal to the lamination direction of the laminated core (2) and the central axis direction of a coil (3). The pair of divided members form a winding portion (6) around which the coil (3) is wound. The divided insulating members (8) each have a projection portion (11). The projection portion (11) is provided at at least one of a first end (9) and a second end (10). The first end (9) and the second end (10) are portions facing each other in the first direction. The projection portion (11) is a portion projecting toward the laminated core (2). The projection portion (11) makes contact with the laminated core (2).

Description

回転電機のインシュレータRotating machine insulator

　本開示は、回転電機のインシュレータに関する。 This disclosure relates to an insulator of a rotary electric machine.

　特許文献１は、電動機のインシュレータの例を開示する。電動機の積層コアは、積層方向に直交する方向を向く歯部を有する。インシュレータは、積層コアの歯部にはめ込まれる。 Patent Document 1 discloses an example of an insulator of an electric motor. The laminated core of the electric motor has teeth facing in a direction orthogonal to the laminating direction. The insulator is fitted into the tooth portion of the laminated core.

国際公開第２０１２／０１１１６８号International Publication No. 2012/011168

　特許文献１のインシュレータは、積層コアの歯部に先端側からはめ込まれる。このため、積層コアの積層誤差またはインシュレータの成形誤差などによって、積層方向にがたつきなどが生じうる。 The insulator of Patent Document 1 is fitted into the tooth portion of the laminated core from the tip side. Therefore, rattling in the stacking direction may occur due to a stacking error of the laminated core or a molding error of the insulator.

　本開示は、このような課題の解決に係るものである。本開示は、積層コアの積層方向にがたつきが生じにくい回転電機のインシュレータを提供する。 This disclosure relates to the solution of such problems. The present disclosure provides an insulator for a rotary electric machine in which rattling is less likely to occur in the stacking direction of the laminated core.

　本開示に係る回転電機のインシュレータは、回転電機の積層コアの積層方向および回転電機のコイルの中心軸方向に直交する第１方向の両側から積層コアに被せられ、コイルが巻き回される巻回部を形成する一対の分割絶縁部材を備え、一対の分割絶縁部材の各々は、第１方向において互いに対向する第１端部および第２端部の少なくとも一方に設けられ、積層コアに向けて突出し、積層コアに接触する突起部を備える。 The insulator of the rotary electric machine according to the present disclosure is wound on the laminated core from both sides in the first direction orthogonal to the stacking direction of the laminated core of the rotary electric machine and the central axis direction of the coil of the rotary electric machine, and the coil is wound. A pair of split insulating members forming a portion are provided, and each of the pair of split insulating members is provided at at least one of a first end portion and a second end portion facing each other in the first direction and projects toward the laminated core. , Equipped with protrusions that come into contact with the laminated core.

　本開示に係るインシュレータであれば、積層コアの積層方向にがたつきが生じにくい。 With the insulator according to the present disclosure, rattling does not easily occur in the stacking direction of the laminated core.

実施の形態１に係る回転電機のステータの部分斜視図である。It is a partial perspective view of the stator of the rotary electric machine which concerns on Embodiment 1. FIG. 実施の形態１に係るインシュレータの分解斜視図である。It is an exploded perspective view of the insulator which concerns on Embodiment 1. FIG. 実施の形態１に係る積層コアの要部拡大図である。It is an enlarged view of the main part of the laminated core which concerns on Embodiment 1. FIG. 実施の形態１に係るインシュレータの斜視図である。It is a perspective view of the insulator which concerns on Embodiment 1. FIG. 実施の形態１に係るインシュレータの斜視図である。It is a perspective view of the insulator which concerns on Embodiment 1. FIG. 実施の形態１に係るインシュレータの断面図である。It is sectional drawing of the insulator which concerns on Embodiment 1. FIG. 実施の形態１に係るインシュレータの要部拡大図である。It is an enlarged view of the main part of the insulator which concerns on Embodiment 1. FIG.

　本開示を実施するための形態について添付の図面を参照しながら説明する。各図において、同一または相当する部分には同一の符号を付して、重複する説明は適宜に簡略化または省略する。 The mode for implementing this disclosure will be explained with reference to the attached drawings. In each figure, the same or corresponding parts are designated by the same reference numerals, and duplicate description will be appropriately simplified or omitted.

　実施の形態１．
　図１は、実施の形態１に係る回転電機のステータ１の部分斜視図である。 Embodiment 1.
FIG. 1 is a partial perspective view of the stator 1 of the rotary electric machine according to the first embodiment.

　回転電機は、例えば電動機である。電動機は、ステータ１を備える。ステータ１は、積層コア２と、複数のコイル３と、複数のインシュレータ４と、を備える。図１において、環状のステータ１の一部の斜視図が示されている。 The rotary electric machine is, for example, an electric machine. The motor includes a stator 1. The stator 1 includes a laminated core 2, a plurality of coils 3, and a plurality of insulators 4. In FIG. 1, a perspective view of a part of the annular stator 1 is shown.

　積層コア２は、例えば環状の鋼板を積層して形成される。積層コア２の積層方向は、例えば積層コア２の軸方向である。積層コア２は、内側に向く複数の歯部５を有する。 The laminated core 2 is formed by laminating, for example, an annular steel plate. The stacking direction of the laminated core 2 is, for example, the axial direction of the laminated core 2. The laminated core 2 has a plurality of teeth 5 facing inward.

　各々のコイル３は、いずれかの歯部５に対応する。コイル３および歯部５は、１対１に対応する。各々のコイル３の中心軸は、対応する歯部５の中心軸と同軸に設けられる。各々のコイル３の中心軸は、積層コア２の内側に向く。この例において、コイル３の中心軸方向は、積層コア２の積層方向に直交する。コイル３の中心軸方向は、例えば積層コア２の径方向である。 Each coil 3 corresponds to any tooth portion 5. The coil 3 and the tooth portion 5 have a one-to-one correspondence. The central axis of each coil 3 is provided coaxially with the central axis of the corresponding tooth portion 5. The central axis of each coil 3 faces the inside of the laminated core 2. In this example, the central axis direction of the coil 3 is orthogonal to the stacking direction of the laminated core 2. The direction of the central axis of the coil 3 is, for example, the radial direction of the laminated core 2.

　各々のインシュレータ４は、いずれかの歯部５に対応する。各々のインシュレータ４は、いずれかのコイル３に対応する。インシュレータ４、歯部５、およびコイル３は、それぞれ１対１に対応する。各々のインシュレータ４は、対応する歯部５に取り付けられる。各々のインシュレータ４は、巻回部６および鍔７を有する。各々のインシュレータ４において、対応するコイル３が巻回部６に巻き回される。鍔７は、巻回部６の端部に設けられる。各々のインシュレータ４において、鍔７は、対応する歯部５の先端側に配置される。各々のインシュレータ４は、巻回部６などによって積層コア２およびコイル３の間を絶縁する部分である。各々のインシュレータ４は、鍔７などによって積層コア２からのコイル３の脱落を防止する。各々のインシュレータ４は、一対の分割絶縁部材８を備える。 Each insulator 4 corresponds to any tooth portion 5. Each insulator 4 corresponds to any coil 3. The insulator 4, the tooth portion 5, and the coil 3 each have a one-to-one correspondence. Each insulator 4 is attached to a corresponding tooth portion 5. Each insulator 4 has a winding portion 6 and a collar 7. In each insulator 4, the corresponding coil 3 is wound around the winding portion 6. The collar 7 is provided at the end of the winding portion 6. In each insulator 4, the collar 7 is arranged on the distal end side of the corresponding tooth portion 5. Each insulator 4 is a portion that insulates between the laminated core 2 and the coil 3 by a winding portion 6 or the like. Each insulator 4 prevents the coil 3 from falling off from the laminated core 2 by means of a flange 7 or the like. Each insulator 4 includes a pair of split insulating members 8.

　各々の分割絶縁部材８は、積層コア２の周方向の両側から歯部５に被せられる部材である。積層コア２の周方向は、第１方向の例である。この例において、積層コア２の周方向は、積層コア２の積層方向およびコイル３の中心軸方向に直交する。各々の分割絶縁部材８は、対応する歯部５に被せられることで巻回部６を形成する。各々の分割絶縁部材８は、絶縁材料によって形成される。各々の分割絶縁部材８は、弾性を有する例えば樹脂などの材料によって形成される。 Each of the divided insulating members 8 is a member that covers the tooth portions 5 from both sides in the circumferential direction of the laminated core 2. The circumferential direction of the laminated core 2 is an example of the first direction. In this example, the circumferential direction of the laminated core 2 is orthogonal to the laminated direction of the laminated core 2 and the central axis direction of the coil 3. Each of the divided insulating members 8 is put on the corresponding tooth portion 5 to form the wound portion 6. Each split insulating member 8 is formed of an insulating material. Each split insulating member 8 is formed of an elastic material such as resin.

　図２は、実施の形態１に係るインシュレータ４の分解斜視図である。 FIG. 2 is an exploded perspective view of the insulator 4 according to the first embodiment.

　各々の分割絶縁部材８は、積層コア２の周方向において互いに対向する第１端部９および第２端部１０を有する。この例において、第１端部９は、積層コア２の積層方向の一方側に配置される端部である。第２端部１０は、積層コア２の積層方向の他方側に配置される端部である。 Each split insulating member 8 has a first end portion 9 and a second end portion 10 facing each other in the circumferential direction of the laminated core 2. In this example, the first end portion 9 is an end portion arranged on one side of the laminated core 2 in the stacking direction. The second end portion 10 is an end portion arranged on the other side of the laminated core 2 in the stacking direction.

　各々の分割絶縁部材８は、第１端部９に突起部１１を有する。突起部１１は、積層コア２の軸方向において積層コア２に向けて突出する部分である。この例において、突起部１１は、積層コア２に向けて突出する爪である。 Each split insulating member 8 has a protrusion 11 at the first end portion 9. The protrusion 11 is a portion that protrudes toward the laminated core 2 in the axial direction of the laminated core 2. In this example, the protrusion 11 is a claw that protrudes toward the laminated core 2.

　各々の分割絶縁部材８は、第２端部１０に結合部１２を有する。結合部１２は、一対の分割絶縁部材８を互いに結合する部分である。一方の分割絶縁部材８の第２端部１０において、結合部１２として結合突起１３が設けられる。他方の分割絶縁部材８の第２端部１０において、結合部１２として結合穴１４が設けられる。結合突起１３は、積層コア２に向けて突出する突起である。一対の分割絶縁部材８は、結合突起１３が結合穴１４にはめ込まれることによって互いに結合される。 Each split insulating member 8 has a coupling portion 12 at the second end portion 10. The coupling portion 12 is a portion that bonds the pair of split insulating members 8 to each other. At the second end portion 10 of one of the split insulating members 8, a coupling projection 13 is provided as a coupling portion 12. A coupling hole 14 is provided as a coupling portion 12 in the second end portion 10 of the other split insulating member 8. The coupling protrusion 13 is a protrusion that protrudes toward the laminated core 2. The pair of split insulating members 8 are coupled to each other by fitting the coupling projections 13 into the coupling holes 14.

　各々の分割絶縁部材８は、リッジ部１５を有する。リッジ部１５は、巻回部６に設けられる。リッジ部１５は、コイル３の中心軸方向に長い。この例において、リッジ部１５は、コイル３の中心軸方向における巻回部６の全長にわたる。リッジ部１５は、インシュレータ４が一対の分割絶縁部材８に分割される積層コア２の周方向において突起部１１より外側に設けられる。積層コア２の軸方向におけるリッジ部１５の高さは、突起部１１より高い。 Each split insulating member 8 has a ridge portion 15. The ridge portion 15 is provided in the winding portion 6. The ridge portion 15 is long in the central axis direction of the coil 3. In this example, the ridge portion 15 extends over the entire length of the winding portion 6 in the central axial direction of the coil 3. The ridge portion 15 is provided outside the protrusion 11 in the circumferential direction of the laminated core 2 in which the insulator 4 is divided into a pair of divided insulating members 8. The height of the ridge portion 15 in the axial direction of the laminated core 2 is higher than that of the protrusion 11.

　図３は、実施の形態１に係る積層コア２の要部拡大図である。
　図３において、積層コア２の歯部５の拡大図が示される。 FIG. 3 is an enlarged view of a main part of the laminated core 2 according to the first embodiment.
FIG. 3 shows an enlarged view of the tooth portion 5 of the laminated core 2.

　積層コア２の歯部５の積層方向の端面において、窪み１６が設けられる。窪み１６は、第２凹部の例である。 A recess 16 is provided at the end face of the tooth portion 5 of the laminated core 2 in the laminated direction. The recess 16 is an example of the second recess.

　積層コア２の歯部５は、鍔１７を有する。鍔１７は、歯部５の先端側に配置される。 The tooth portion 5 of the laminated core 2 has a collar 17. The collar 17 is arranged on the tip end side of the tooth portion 5.

　図４は、実施の形態１に係るインシュレータ４の斜視図である。
　図４において、歯部５に取り付けられた状態のインシュレータ４が示される。図４は、分割絶縁部材８の第２端部１０側から見た斜視図である。また、図４において、積層コア２の積層方向を含み結合部１２を通る断面が示される。 FIG. 4 is a perspective view of the insulator 4 according to the first embodiment.
In FIG. 4, the insulator 4 attached to the tooth portion 5 is shown. FIG. 4 is a perspective view seen from the second end portion 10 side of the split insulating member 8. Further, in FIG. 4, a cross section including the stacking direction of the laminated core 2 and passing through the coupling portion 12 is shown.

　インシュレータ４が歯部５に取り付けられるときに、一対の分割絶縁部材８は、対応する歯部５を間に配置した状態で第２端部１０の結合部１２によって互いに結合される。この例において、一対の分割絶縁部材８は、結合突起１３が結合穴１４にはめ込まれることで互いに結合される。 When the insulator 4 is attached to the tooth portion 5, the pair of split insulating members 8 are coupled to each other by the connecting portion 12 of the second end portion 10 with the corresponding tooth portions 5 arranged in between. In this example, the pair of split insulating members 8 are coupled to each other by fitting the coupling projections 13 into the coupling holes 14.

　その後、一対の分割絶縁部材８は、積層コア２の周方向の両側からインシュレータ４に対応する歯部５に被せるように取り付けられる。 After that, the pair of split insulating members 8 are attached so as to cover the tooth portions 5 corresponding to the insulator 4 from both sides in the circumferential direction of the laminated core 2.

　図５は、実施の形態１に係るインシュレータ４の斜視図である。
　図５において、歯部５に取り付けられた状態のインシュレータ４が示される。図５は、分割絶縁部材８の第１端部９側から見た斜視図である。また、図５において、積層コア２の積層方向を含み突起部１１を通る断面が示される。 FIG. 5 is a perspective view of the insulator 4 according to the first embodiment.
In FIG. 5, the insulator 4 attached to the tooth portion 5 is shown. FIG. 5 is a perspective view seen from the first end 9 side of the split insulating member 8. Further, in FIG. 5, a cross section including the stacking direction of the laminated core 2 and passing through the protrusion 11 is shown.

　インシュレータ４が歯部５に取り付けられるときに、突起部１１は、対応する積層コア２の積層方向の端面に接触することで積層方向に弾性変形する。インシュレータ４が歯部５に取り付けられているときに、突起部１１は、窪み１６に入り込んで対応する積層コア２に接触する。すなわち、インシュレータ４および積層コア２の歯部５は、突起部１１および窪み１６によるスナップフィットによって取り付けられる。 When the insulator 4 is attached to the tooth portion 5, the protrusion 11 is elastically deformed in the stacking direction by coming into contact with the end face of the corresponding laminated core 2 in the stacking direction. When the insulator 4 is attached to the tooth portion 5, the protrusion 11 enters the recess 16 and comes into contact with the corresponding laminated core 2. That is, the tooth portions 5 of the insulator 4 and the laminated core 2 are attached by a snap fit by the protrusions 11 and the recesses 16.

　図６は、実施の形態１に係るインシュレータ４の断面図である。
　図６において、積層コア２の積層方向を含み突起部１１を通る図５と同様の断面が示される。 FIG. 6 is a cross-sectional view of the insulator 4 according to the first embodiment.
FIG. 6 shows a cross section similar to that in FIG. 5, including the stacking direction of the laminated core 2 and passing through the protrusion 11.

　インシュレータ４が歯部５に取り付けられているときに、突起部１１は、窪み１６の底面に接触する。突起部１１は、分割絶縁部材８の弾性によって窪み１６の底面に押し付けられていてもよい。 When the insulator 4 is attached to the tooth portion 5, the protrusion 11 comes into contact with the bottom surface of the recess 16. The protrusion 11 may be pressed against the bottom surface of the recess 16 by the elasticity of the split insulating member 8.

　インシュレータ４が歯部５に取り付けられているときに、巻回部６において、一対の分割絶縁部材８のリッジ部１５の間に溝１８が形成される。溝１８は、コイル３より内側に凹む第１凹部の例である。突起部１１は、溝１８の底面に配置されている。すなわち、突起部１１は、一対の分割絶縁部材８のリッジ部１５の間に配置される。溝１８の深さは、コイル３および積層コア２の間を絶縁しうる深さである。 When the insulator 4 is attached to the tooth portion 5, a groove 18 is formed between the ridge portions 15 of the pair of split insulating members 8 in the winding portion 6. The groove 18 is an example of a first recess that is recessed inward from the coil 3. The protrusion 11 is arranged on the bottom surface of the groove 18. That is, the protrusion 11 is arranged between the ridges 15 of the pair of split insulating members 8. The depth of the groove 18 is a depth capable of insulating between the coil 3 and the laminated core 2.

　図７は、実施の形態１に係るインシュレータ４の要部拡大図である。 FIG. 7 is an enlarged view of a main part of the insulator 4 according to the first embodiment.

　各々の分割絶縁部材８において、突起部１１に隣接して積層コア２の周方向に沿う切込み１９が設けられる。これにより、対応する積層コア２の積層方向の端面に接触するときに突起部１１が積層方向に容易に弾性変形できるようになる。 In each of the divided insulating members 8, a notch 19 is provided adjacent to the protrusion 11 along the circumferential direction of the laminated core 2. As a result, the protrusion 11 can be easily elastically deformed in the stacking direction when it comes into contact with the end face of the corresponding laminated core 2 in the stacking direction.

　なお、分割絶縁部材８において、突起部１１に隣接した切込み１９が設けられていなくてもよい。 It should be noted that the split insulating member 8 does not have to be provided with the notch 19 adjacent to the protrusion 11.

　また、結合部１２において、結合穴１４は貫通孔でなくてもよい。結合部１２は、爪および凹部などによって一対の分割絶縁部材８を互いに結合してもよい。分割絶縁部材８において、結合部１２が設けられていなくてもよい。このとき、分割絶縁部材８において、第１端部９および第２端部１０の両方に突起部１１が設けられていてもよい。 Further, in the joint portion 12, the joint hole 14 does not have to be a through hole. The connecting portion 12 may connect the pair of divided insulating members 8 to each other by means of a claw, a recess, or the like. The split insulating member 8 may not be provided with the coupling portion 12. At this time, in the split insulating member 8, the protrusions 11 may be provided on both the first end portion 9 and the second end portion 10.

　また、第１凹部は、コイル３の中心軸方向における巻回部６の全長にわたる溝１８でなくてもよい。第１凹部は、突起部１１の周囲のみにおいて凹む部分であってもよい。 Further, the first recess does not have to be a groove 18 over the entire length of the winding portion 6 in the central axis direction of the coil 3. The first recess may be a recessed portion only around the protrusion 11.

　また、第１端部９および第２端部１０の端面は、第１方向に垂直でなくてもよい。第１端部９および第２端部１０の端面は、コイル３の中心軸方向に沿う方向に対して傾いていてもよい。 Further, the end faces of the first end portion 9 and the second end portion 10 do not have to be perpendicular to the first direction. The end faces of the first end portion 9 and the second end portion 10 may be inclined with respect to the direction along the central axis direction of the coil 3.

　以上に説明したように、実施の形態１に係るインシュレータ４は、一対の分割絶縁部材８を備える。一対の分割部材は、第１方向の両側から積層コア２に被せられる。第１方向は、積層コア２の積層方向およびコイル３の中心軸方向に直交する。一対の分割部材は、コイル３が巻き回される巻回部６を形成する。各々の分割絶縁部材８の各々は、突起部１１を有する。突起部１１は、第１端部９および第２端部１０の少なくとも一方に設けられる。第１端部９および第２端部１０は、第１方向において互いに対向する部分である。突起部１１は、積層コア２に向けて突出する部分である。突起部１１は、積層コア２に接触する。 As described above, the insulator 4 according to the first embodiment includes a pair of split insulating members 8. The pair of dividing members are covered on the laminated core 2 from both sides in the first direction. The first direction is orthogonal to the stacking direction of the laminated core 2 and the central axis direction of the coil 3. The pair of split members form a winding portion 6 around which the coil 3 is wound. Each of the divided insulating members 8 has a protrusion 11. The protrusion 11 is provided on at least one of the first end 9 and the second end 10. The first end portion 9 and the second end portion 10 are portions facing each other in the first direction. The protrusion 11 is a portion that protrudes toward the laminated core 2. The protrusion 11 comes into contact with the laminated core 2.

　このような構成のインシュレータ４において、突起部１１が積層コア２に接触するので、積層誤差または分割絶縁部材８の成形誤差などが吸収される。これにより、積層コア２の積層方向にがたつきなどが生じにくい。また、分割絶縁部材８は第１方向の両側から積層コア２の歯部５に被せられるので、インシュレータ４は、歯部５に鍔１７を有する積層コア２についても適用できる。 In the insulator 4 having such a configuration, since the protrusion 11 comes into contact with the laminated core 2, a lamination error or a molding error of the divided insulating member 8 is absorbed. As a result, rattling in the stacking direction of the laminated core 2 is unlikely to occur. Further, since the split insulating member 8 is placed on the tooth portions 5 of the laminated core 2 from both sides in the first direction, the insulator 4 can also be applied to the laminated core 2 having a flange 17 on the tooth portions 5.

　また、突起部１１は、巻回部６においてコイル３より内側に凹む第１凹部に配置される。 Further, the protrusion 11 is arranged in the first recess that is recessed inward from the coil 3 in the winding portion 6.

　これにより、積層コア２の積層方向の端面に接触することにより突起部１１が変形した場合においても、突起部１１がコイル３に接触しにくくなる。これにより、コイル３が損傷しにくくなる。また、積層コア２およびコイル３の間の距離が確保されるので、積層コア２およびコイル３の間の絶縁性能が確保される。 As a result, even when the protrusion 11 is deformed by contacting the end surface of the laminated core 2 in the stacking direction, the protrusion 11 is less likely to come into contact with the coil 3. This makes the coil 3 less likely to be damaged. Further, since the distance between the laminated core 2 and the coil 3 is secured, the insulation performance between the laminated core 2 and the coil 3 is ensured.

　また、突起部１１は、積層コア２において積層方向の端面に設けられた第２凹部に接触する。 Further, the protrusion 11 contacts the second recess provided on the end face in the stacking direction in the laminated core 2.

　これにより、突起部１１は、第２凹部に掛かる爪として機能する。このため、第１方向へのインシュレータ４の脱落が防止される。また、インシュレータ４の積層コア２への取付けが容易になる。 As a result, the protrusion 11 functions as a claw that hangs on the second recess. Therefore, the insulator 4 is prevented from falling off in the first direction. Further, the insulator 4 can be easily attached to the laminated core 2.

　また、各々の分割絶縁部材８において、第１端部９および前記第２端部１０の一方に突起部１１が設けられる。各々の分割絶縁部材８において、第１端部９および第２端部１０の他方に結合部１２が設けられる。結合部１２は、一対の分割絶縁部材８を互いに結合する。 Further, in each of the divided insulating members 8, a protrusion 11 is provided on one of the first end portion 9 and the second end portion 10. In each of the divided insulating members 8, a coupling portion 12 is provided on the other side of the first end portion 9 and the second end portion 10. The coupling portion 12 couples the pair of split insulating members 8 to each other.

　結合部１２により、第１方向へのインシュレータ４の脱落が防止される。また、インシュレータ４の積層コア２への取付けが容易になる。 The coupling portion 12 prevents the insulator 4 from falling off in the first direction. Further, the insulator 4 can be easily attached to the laminated core 2.

　本開示に係るインシュレータは、回転電機に適用できる。 The insulator according to this disclosure can be applied to rotary electric machines.

　１　ステータ、　２　積層コア、　３　コイル、　４　インシュレータ、　５　歯部、　６　巻回部、　７　鍔、　８　分割絶縁部材、　９　第１端部、　１０　第２端部、　１１　突起部、　１２　結合部、　１３　結合突起、　１４　結合穴、　１５　リッジ部、　１６　窪み、　１７　鍔、　１８　溝、　１９　切込み 1 stator, 2 laminated core, 3 coil, 4 insulator, 5 tooth part, 6 winding part, 7 collar, 8 split insulating member, 9 1st end, 10 2nd end, 11 protrusion, 12 joint, 13 coupling protrusions, 14 coupling holes, 15 ridges, 16 dents, 17 collars, 18 grooves, 19 notches

Claims (4)

　回転電機の積層コアの積層方向および前記回転電機のコイルの中心軸方向に直交する第１方向の両側から前記積層コアに被せられ、前記コイルが巻き回される巻回部を形成する一対の分割絶縁部材
　を備え、
　前記一対の分割絶縁部材の各々は、
　前記第１方向において互いに対向する第１端部および第２端部の少なくとも一方に設けられ、前記積層コアに向けて突出し、前記積層コアに接触する突起部
　を備える
　回転電機のインシュレータ。 A pair of divisions that cover the laminated core from both sides in the first direction orthogonal to the stacking direction of the laminated core of the rotary electric machine and the central axis direction of the coil of the rotary electric machine to form a winding portion around which the coil is wound. Equipped with insulating member,
Each of the pair of split insulating members
An insulator of a rotary electric machine provided at least one of a first end portion and a second end portion facing each other in the first direction, and having a protrusion portion that protrudes toward the laminated core and comes into contact with the laminated core. 　前記突起部は、前記巻回部において前記コイルより内側に凹む第１凹部に配置される
　請求項１に記載の回転電機のインシュレータ。 The insulator of a rotary electric machine according to claim 1, wherein the protrusion is arranged in a first recess recessed inward from the coil in the winding portion. 　前記突起部は、前記積層コアにおいて積層方向の端面に設けられた第２凹部に接触する
　請求項１または請求項２に記載の回転電機のインシュレータ。 The insulator of a rotary electric machine according to claim 1 or 2, wherein the protrusion contacts a second recess provided on an end face in the stacking direction in the laminated core. 　前記一対の分割絶縁部材の各々は、
　前記第１端部および前記第２端部の一方に前記突起部が設けられ、
　前記第１端部および前記第２端部の他方に、互いに結合する結合部が設けられる
　請求項１から請求項３のいずれか一項に記載の回転電機のインシュレータ。 Each of the pair of split insulating members
The protrusion is provided on one of the first end and the second end.
The insulator of a rotary electric machine according to any one of claims 1 to 3, wherein a coupling portion to be coupled to each other is provided on the other of the first end portion and the second end portion.
PCT/JP2020/024658 2020-06-23 2020-06-23 Rotating electric machine insulator Ceased WO2021260808A1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005229703A (en) * 2004-02-12 2005-08-25 Sanko Kiki Co Ltd Insulator for stator core, and winding method for stator core
JP2008043139A (en) * 2006-08-09 2008-02-21 Jtekt Corp Electric motor
JP2008278632A (en) * 2007-04-27 2008-11-13 Sumitomo Electric Ind Ltd Split stator and split stator manufacturing method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005229703A (en) * 2004-02-12 2005-08-25 Sanko Kiki Co Ltd Insulator for stator core, and winding method for stator core
JP2008043139A (en) * 2006-08-09 2008-02-21 Jtekt Corp Electric motor
JP2008278632A (en) * 2007-04-27 2008-11-13 Sumitomo Electric Ind Ltd Split stator and split stator manufacturing method

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