JP2014011900A

JP2014011900A - Stator and motor

Info

Publication number: JP2014011900A
Application number: JP2012147734A
Authority: JP
Inventors: Tatsuya Takemura; 達也竹村
Original assignee: Nidec Sankyo Corp
Current assignee: Nidec Instruments Corp
Priority date: 2012-06-29
Filing date: 2012-06-29
Publication date: 2014-01-20
Also published as: CN103516064A

Abstract

PROBLEM TO BE SOLVED: To provide a stator in which a wiring board can be positioned at a predetermined position on an insulation member, and to provide a motor including the stator.SOLUTION: In a stator 4, a wiring board 3 (first arcuate board 31 and a second arcuate board 32) is superimposed on an insulation member 8. A protrusion 841 formed on the first flange 84 of the insulation member 8 is fitted in first notches 312a, 321a, second notches 312b, 321b, and third notches 312c, 321c formed in the inner peripheral edges 311, 321 of the first arcuate board 31 and second arcuate board 32. Consequently, the first arcuate board 31 and second arcuate board 32 can be positioned easily.

Description

本発明は、突極に対して絶縁部材を介してコイル線が巻回されたステータ、および該ステータを備えたモータに関するものである。 The present invention relates to a stator in which a coil wire is wound around an insulating member with respect to a salient pole, and a motor including the stator.

モータ等に用いるステータは、突極に対して絶縁部材を介してコイル線が巻回された構造を有しており、絶縁部材に対して軸線方向の一方側には配線基板が重ねて配置されている（特許文献１参照）。 A stator used for a motor or the like has a structure in which a coil wire is wound around a salient pole via an insulating member, and a wiring board is disposed on one side in the axial direction with respect to the insulating member. (See Patent Document 1).

特開２００８−３０１６３７号公報JP 2008-301637 A

しかしながら、配線基板にはコイル線の端部が接続されていることから、配線基板がコイル線に引っ張られて動いてしまうことがあり、このような場合、ステータやモータの組み立てに多大な手間がかかるという問題点がある。 However, since the end of the coil wire is connected to the wiring board, the wiring board may be pulled and moved by the coil wire. In such a case, it takes a lot of time to assemble the stator and motor. There is a problem that it takes.

以上の問題点に鑑みて、本発明の課題は、絶縁部材上の所定位置に配線基板を位置決めすることのできるステータ、および該ステータを備えたモータを提供することにある。 In view of the above problems, an object of the present invention is to provide a stator capable of positioning a wiring board at a predetermined position on an insulating member, and a motor including the stator.

上記課題を解決するために、本発明は、周方向に複数の突極を備えたステータコアと、前記突極を覆う胴部を備えた絶縁部材と、前記胴部を介して前記突極の周りに巻回されたコイル線と、前記絶縁部材に対して軸線方向の一方側に重ねて配置され、前記コイル線の端部が接続された配線基板と、を有するステータであって、前記絶縁部材は、前記胴部の一方側端部に設けられた第１鍔部と、前記胴部の他方側端部に設けられた第２鍔部と、を備え、前記第１鍔部の前記軸線方向の一方側の端部には、当該端部から軸線方向に突出する凸部が形成され、前記配線基板には、前記凸部が内側に嵌る切り欠きあるいは貫通孔からなる係合部が形成されていることを特徴とする。 In order to solve the above-described problems, the present invention provides a stator core having a plurality of salient poles in the circumferential direction, an insulating member having a trunk portion covering the salient poles, and around the salient poles via the trunk portion. A stator comprising: a coil wire wound around the wiring member; and a wiring board disposed on one side in an axial direction with respect to the insulating member and connected to an end of the coil wire, wherein the insulating member Comprises a first collar provided at one end of the trunk and a second collar provided at the other end of the trunk, the axial direction of the first collar A convex portion that protrudes in the axial direction from the end portion is formed at one end of the wiring portion, and an engaging portion that includes a notch or a through hole in which the convex portion fits inside is formed on the wiring board. It is characterized by.

本発明では、絶縁部材に対して軸線方向の一方側には配線基板が重ねて配置されており、絶縁部材の第１鍔部の軸線方向の一方側の端部には凸部が形成され、配線基板には、凸部が内側に嵌る切り欠きあるいは貫通孔からなる係合部が形成されている。このため、配線基板は、絶縁部材の凸部によって位置決めされているので、コイル線等から配線基板を変位させようとする力が加わっても、配線基板は、絶縁部材上の所定位置に位置決めされた状態にある。それ故、ステータやモータの組み立てに多大な手間がかからない。 In the present invention, the wiring board is arranged on one side in the axial direction with respect to the insulating member, and a convex portion is formed at one end in the axial direction of the first flange portion of the insulating member, The wiring board is formed with an engaging portion including a notch or a through hole in which the convex portion fits inside. For this reason, since the wiring board is positioned by the convex portion of the insulating member, the wiring board is positioned at a predetermined position on the insulating member even if a force is applied to displace the wiring board from a coil wire or the like. It is in the state. Therefore, it does not take much time to assemble the stator and motor.

本発明において、前記凸部は、前記胴部より周方向の外側に位置していることが好ましい。 In this invention, it is preferable that the said convex part is located in the outer side of the circumferential direction from the said trunk | drum.

本発明において、前記絶縁部材は、周方向に複数配列され、前記配線基板は、周方向において前記胴部の複数個分の角度範囲にわたって延在しており、前記係合部には、周方向で隣り合う２つの前記第１鍔部の各々に形成された２つの前記凸部が嵌った係合部が含まれていることが好ましい。 In the present invention, a plurality of the insulating members are arranged in the circumferential direction, and the wiring board extends over an angular range corresponding to a plurality of the body portions in the circumferential direction. It is preferable that the engaging part which the two said convex part formed in each of the said two said 1st collar parts adjacent to fit was contained.

本発明において、前記第１鍔部は、該第１鍔部において周方向で隣接する個所よりも径方向の厚さが大の肉厚部分を備え、当該肉厚部分に前記凸部が形成されていることが好ましい。かかる構成によれば、太くて強度が大の凸部を形成することができるので、凸部に力が加わっても折れにくいという利点がある。 In the present invention, the first flange includes a thick portion having a radial thickness larger than a portion adjacent in the circumferential direction in the first flange, and the convex portion is formed in the thick portion. It is preferable. According to such a configuration, since the thick convex portion having a high strength can be formed, there is an advantage that even if a force is applied to the convex portion, the convex portion is not easily broken.

本発明において、前記凸部は、例えば円柱状である。凸部に径方向内側に向かう力がかかった際に、その根元部分に応力が集中しやすいが、根元部分が円柱状であれば、四角柱である場合に比して、力が分散される。それ故、凸部が折れ難いという利点がある。 In the present invention, the convex portion has, for example, a cylindrical shape. When a force toward the inside in the radial direction is applied to the convex part, the stress tends to concentrate on the root part, but if the root part is cylindrical, the force is dispersed compared to a square pillar. . Therefore, there is an advantage that the convex portion is not easily broken.

本発明において、前記凸部の前記配線基板より先端側には、前記配線基板の抜けを防止する抜け止め部が設けられていることが好ましい。 In the present invention, it is preferable that a retaining portion for preventing the wiring substrate from coming off is provided on the tip side of the convex portion from the wiring substrate.

本発明において、前記抜け止め部は、前記凸部の先端部を潰した個所からなることが好ましい。かかる構成によれば、接着剤等を用いなくても、配線基板の抜けを防止することができる。 In this invention, it is preferable that the said retaining part consists of the part which crushed the front-end | tip part of the said convex part. According to such a configuration, it is possible to prevent the wiring board from coming off without using an adhesive or the like.

本発明において、前記係合部は、径方向の一方側に向けて開放する切り欠きからなることが好ましい。かかる構成によれば、配線基板を径方向でずらして配線基板の径方向の位置を調整することができる。 In this invention, it is preferable that the said engaging part consists of a notch open | released toward the one side of radial direction. According to this configuration, the position of the wiring board in the radial direction can be adjusted by shifting the wiring board in the radial direction.

本発明において、前記配線基板は、１８０°未満の円弧角をもって延在する円弧状基板からなることが好ましい。かかる構成によれば、環状の配線基板に比して大型基板からの配線基板の取り数を増やすことができるので、配線基板の低コスト化を図ることができる。 In the present invention, it is preferable that the wiring substrate is an arc-shaped substrate extending with an arc angle of less than 180 °. According to such a configuration, the number of wiring boards to be taken from a large-sized board can be increased as compared with an annular wiring board, so that the cost of the wiring board can be reduced.

本発明において、前記第１鍔部は、前記胴部の内周側端部に設けられた内周側鍔部であり、前記第２鍔部は、前記胴部の外周側端部に設けられた外周側鍔部である構成を採用することができる。 In the present invention, the first flange portion is an inner periphery side flange portion provided at an inner peripheral side end portion of the trunk portion, and the second flange portion is provided at an outer periphery side end portion of the trunk portion. The structure which is the outer peripheral side collar part can be employ | adopted.

本発明は、本発明に係るステータを備えたモータであり、この場合、モータは、前記突極の端部に径方向で対向するロータを有している。 The present invention is a motor including the stator according to the present invention. In this case, the motor has a rotor that is opposed to an end portion of the salient pole in a radial direction.

本発明を適用したモータの縦断面図である。It is a longitudinal cross-sectional view of the motor to which this invention is applied. 本発明を適用したモータのステータの説明図である。It is explanatory drawing of the stator of the motor to which this invention is applied. 本発明を適用したモータのステータの底面図である。It is a bottom view of the stator of the motor to which the present invention is applied. 本発明を適用したモータのステータにおける配線基板の固定構造を示す説明図である。It is explanatory drawing which shows the fixing structure of the wiring board in the stator of the motor to which this invention is applied. 本発明を適用したモータのステータに用いた絶縁部材の説明図である。It is explanatory drawing of the insulating member used for the stator of the motor to which this invention is applied. 本発明を適用したステータおよびモータの製造工程において、コイル線を巻回する方法を模式的に示す説明図である。It is explanatory drawing which shows typically the method of winding a coil wire in the manufacturing process of the stator and motor to which this invention is applied.

以下、本発明を実施するための形態について、図面を参照しながら説明する。なお、以下の説明においては、モータ軸線方向Ｌのうち、モータ軸が大きく突出している側を出力側Ｌ１とし、その反対側を反出力側Ｌ２として説明する。また、周方向については矢印Ｒで示し、その一方側をＲ１とし、他方側をＲ２として説明する。また、以下の説明では、本発明をインナーロータ型のモータに適用した場合を中心に説明する。 Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In the following description, in the motor axis direction L, the side on which the motor shaft protrudes greatly will be described as the output side L1, and the opposite side will be described as the counter-output side L2. Further, the circumferential direction is indicated by an arrow R, and one side thereof will be described as R1, and the other side will be described as R2. In the following description, the case where the present invention is applied to an inner rotor type motor will be mainly described.

（モータの全体構成）
図１は、本発明を適用したモータの縦断面図である。図１に示すモータ１は、３相のインナーロータ型ＤＣブラシレスモータであり、モータ軸線方向Ｌの出力側Ｌ１が開放端になっている有底円筒状のモータケース２と、モータケース２の内側に焼き嵌め等の方法で固定された円筒状のステータ４と、ステータ４の内側に設けられたロータ７とを有していている。モータケース２は、円筒状のケース部材２１と、ケース部材２１の反出力側Ｌ２の端部に溶接等の方法で固定された端板２２とからなる。ロータ７は、モータ軸線方向Ｌに延びた回転軸７０と、回転軸７０の外周面に固定されたロータマグネット７５（永久磁石）とを備えている。回転軸７０は、出力側Ｌ１の第１軸受７６、および反出力側Ｌ２の第２軸受７７によって回転可能に支持されている。第１軸受７６は、モータケース２に保持されたフランジ状の軸受ホルダ２０に保持され、第２軸受７７は、端板２２に形成された円筒部２２１に保持されている。本形態において、軸受ホルダ２０はモータケース２の開放端を塞ぐ蓋部材として用いられている。 (General configuration of motor)
FIG. 1 is a longitudinal sectional view of a motor to which the present invention is applied. A motor 1 shown in FIG. 1 is a three-phase inner rotor type DC brushless motor, and has a bottomed cylindrical motor case 2 whose output side L1 in the motor axial direction L is an open end, and an inner side of the motor case 2 A cylindrical stator 4 fixed by shrink fitting or the like, and a rotor 7 provided inside the stator 4. The motor case 2 includes a cylindrical case member 21 and an end plate 22 fixed to the end portion of the case member 21 on the opposite output side L2 by a method such as welding. The rotor 7 includes a rotating shaft 70 extending in the motor axial direction L, and a rotor magnet 75 (permanent magnet) fixed to the outer peripheral surface of the rotating shaft 70. The rotary shaft 70 is rotatably supported by a first bearing 76 on the output side L1 and a second bearing 77 on the non-output side L2. The first bearing 76 is held by a flange-shaped bearing holder 20 held by the motor case 2, and the second bearing 77 is held by a cylindrical portion 221 formed on the end plate 22. In this embodiment, the bearing holder 20 is used as a lid member that closes the open end of the motor case 2.

ステータ４は、複数の分割コア５０が周方向Ｒに環状に配列されたステータコア５と、複数の分割コア５０のモータ軸線方向Ｌの各々の両端に被さる絶縁部材８、９と、絶縁部材８、９の溝状のコイル巻回部８０、９０を介してステータコア５の突極５１に巻回された３相分（ｕ相、ｖ相およびｗ相）のコイル線６とを備えている。また、ステータ４は、コイル線６に給電を行うにあたって、ステータコア５の反出力側端部に重なる絶縁部材８に反出力側Ｌ２で重なる配線基板３が用いられている。本形態において、コイル線６は、銅線の表面に絶縁層が被覆された構造を有している。 The stator 4 includes a stator core 5 in which a plurality of split cores 50 are annularly arranged in the circumferential direction R, insulating members 8 and 9 that cover both ends of the plurality of split cores 50 in the motor axial direction L, The coil wire 6 of three phases (u phase, v phase, and w phase) wound around the salient pole 51 of the stator core 5 through nine groove-shaped coil winding portions 80 and 90 is provided. In addition, when the stator 4 supplies power to the coil wire 6, the wiring substrate 3 is used that overlaps the insulating member 8 that overlaps the opposite end portion of the stator core 5 on the opposite output side L <b> 2. In this embodiment, the coil wire 6 has a structure in which the surface of the copper wire is covered with an insulating layer.

本形態では、ステータコア５が複数の分割コア５０からなるため、絶縁部材８、９は、複数の分割コア５０の各々に装着される。ここで、周方向Ｒで隣り合う分割コア５０に装着された絶縁部材８、９同士が各々、分割された個別の部材になっていてもよいし、周方向で隣り合う分割コア５０に装着された絶縁部材８、９同士が、肉薄の可撓部で繋がった構造であってもよい。 In this embodiment, since the stator core 5 is composed of a plurality of divided cores 50, the insulating members 8 and 9 are attached to each of the plurality of divided cores 50. Here, the insulating members 8 and 9 attached to the split cores 50 adjacent to each other in the circumferential direction R may be divided into individual members or attached to the split cores 50 adjacent to each other in the circumferential direction. Alternatively, the insulating members 8 and 9 may be connected by thin flexible portions.

（ステータ４の構成）
図２は、本発明を適用したモータのステータの説明図であり、図２（ａ）、（ｂ）、（ｃ）、（ｄ）は、ステータを反出力側Ｌ２からみた斜視図、ステータをステータコア側と配線基板とに分解した分解斜視図、ステータコア側から分割コアの１つを外した状態等の分解斜視図、および分割コア１つ分に配置された絶縁部材の分解斜視図である。図３は、本発明を適用したモータのステータの底面図であり、図３（ａ）、（ｂ）は、ステータの底面部、およびステータをステータコア側と配線基板とに分解した底面図である。図４は、本発明を適用したモータのステータにおける配線基板の固定構造を示す説明図であり、図４（ａ）、（ｂ）、（ｃ）は、配線基板をステータコア側に固定した状態の底面図、配線基板をステータコア側から外した状態の底面図、および配線基板を保持する絶縁部材等の説明図である。 (Configuration of stator 4)
FIG. 2 is an explanatory view of a stator of a motor to which the present invention is applied. FIGS. 2 (a), (b), (c), and (d) are perspective views of the stator as viewed from the non-output side L2. FIG. 3 is an exploded perspective view disassembled into a stator core side and a wiring substrate, an exploded perspective view in a state where one of the divided cores is removed from the stator core side, and an exploded perspective view of an insulating member arranged in one divided core. FIG. 3 is a bottom view of a stator of a motor to which the present invention is applied, and FIGS. 3A and 3B are bottom views of the bottom surface of the stator and the stator disassembled into a stator core side and a wiring board. . FIG. 4 is an explanatory view showing the fixing structure of the wiring board in the stator of the motor to which the present invention is applied. FIGS. It is a bottom view, a bottom view in a state where the wiring board is removed from the stator core side, and an explanatory view of an insulating member etc. for holding the wiring board.

図２に示すように、分割コア５０は、複数枚の磁性板をモータ軸線方向Ｌに積層した積層コアからなり、半径方向に突出する突極５１と、突極５１の外周側端部から周方向の両側に延びた外周側円弧部５３と、内周側端部から周方向の両側に延びた内周側円弧部５２とを備えている。かかる分割コア５０は、複数が周方向に配列される結果、周方向で隣接する外周側円弧部５３の側端部同士が連結され、外周側円弧部５３は、ステータ４の環状コア部５３０を構成する。このため、ステータコア５は、環状コア部５３０から半径方向内側に突出する複数の突極５１が等角度間隔で配列された構造を有しており、突極５１の先端部（内周側円弧部５２）と、図１に示すロータマグネット７５とは隙間を介して対向することになる。 As shown in FIG. 2, the split core 50 is formed of a laminated core in which a plurality of magnetic plates are stacked in the motor axial direction L. The outer peripheral side arc part 53 extended in the both sides of the direction and the inner peripheral side arc part 52 extended in the both sides of the circumferential direction from the inner peripheral side edge part are provided. As a result of the plurality of divided cores 50 being arranged in the circumferential direction, the side end portions of the outer circumferential arc portion 53 adjacent in the circumferential direction are connected to each other, and the outer circumferential arc portion 53 connects the annular core portion 530 of the stator 4. Configure. For this reason, the stator core 5 has a structure in which a plurality of salient poles 51 projecting radially inward from the annular core portion 530 are arranged at equal angular intervals. 52) and the rotor magnet 75 shown in FIG. 1 are opposed to each other through a gap.

本形態において、ステータコア５は、１相当たり３極に形成されているため、計９個の分割コア５０によって形成されている。このため、分割コア５０は４０°間隔に配列されている。 In this embodiment, since the stator core 5 is formed with three poles per phase, the stator core 5 is formed by a total of nine divided cores 50. For this reason, the split cores 50 are arranged at intervals of 40 °.

（配線基板３の構成）
図２、図３および図４に示すように、本形態のモータ１において、配線基板３は、１８０°未満の円弧角をもって延在する第１円弧状基板３１と、第１円弧状基板３１に対して周方向で隣り合う位置で１８０°未満の円弧角をもって延在する第２円弧状基板３２とからなる。かかる第１円弧状基板３１および第２円弧状基板３２はいずれも、片面基板である。また、第１円弧状基板３１および第２円弧状基板３２の各々の角度範囲θはいずれも、約１００°であり、以下の条件
（３６０／（ｎ×ｍ））×（ｍ−１）＜θ＜（３６０／（ｎ×ｍ））×ｍ
ｎ＝相数
ｍ＝１相当たりの極数
を満たしている。すなわち、本形態では、ｎ＝３およびｍ＝３であるため、第１円弧状基板３１および第２円弧状基板３２の各々の角度範囲θは、以下の条件
８０°＜θ＜１２０°
を満たしている。 (Configuration of wiring board 3)
As shown in FIGS. 2, 3, and 4, in the motor 1 of this embodiment, the wiring board 3 includes a first arc-shaped substrate 31 that extends with an arc angle of less than 180 °, and a first arc-shaped substrate 31. On the other hand, it comprises a second arcuate substrate 32 extending at an arc angle of less than 180 ° at a position adjacent in the circumferential direction. The first arc-shaped substrate 31 and the second arc-shaped substrate 32 are both single-sided substrates. Further, each of the angle ranges θ of the first arc-shaped substrate 31 and the second arc-shaped substrate 32 is about 100 °, and the following condition (360 / (n × m)) × (m−1) < θ <(360 / (n × m)) × m
n = number of phases m = the number of poles per phase is satisfied. That is, in this embodiment, since n = 3 and m = 3, the angle ranges θ of the first arc-shaped substrate 31 and the second arc-shaped substrate 32 are as follows: 80 ° <θ <120 °
Meet.

図３および図４に示すように、第１円弧状基板３１には、各相のコイル線６に接続するコモン用パターン３１０が形成され、第２円弧状基板３２には、コイル線６に対して相毎に独立した電位を印加する動力線接続用パターン３２０ｕ、３２０ｖ、３２０ｗが形成されている。本形態では、３つの動力線接続用パターン３２０ｕ、３２０ｖ、３２０ｗは、互いに近接した位置から引き出されている。 As shown in FIGS. 3 and 4, a common pattern 310 connected to the coil wire 6 of each phase is formed on the first arc-shaped substrate 31, and the second arc-shaped substrate 32 is connected to the coil wire 6. Thus, power line connection patterns 320u, 320v, and 320w for applying an independent potential for each phase are formed. In the present embodiment, the three power line connection patterns 320u, 320v, and 320w are drawn from positions close to each other.

第１円弧状基板３１および第２円弧状基板３２は、同一の外形形状を有しており、第１円弧状基板３１と第２円弧状基板３２とは線対称に配置されている。より具体的には、第１円弧状基板３１の内周縁３１１には、周方向Ｒの他方側Ｒ２周りの方向に向かって、第１切り欠き３１１ａ、第２切り欠き３１１ｂ、および第３切り欠き３１１ｃがこの順に等角度間隔に形成されており、かかる第１切り欠き３１１ａ、第２切り欠き３１１ｂ、および第３切り欠き３１１ｃはいずれも、径方向の内側で開放状態にある。本形態において、第１切り欠き３１１ａ、第２切り欠き３１１ｂ、および第３切り欠き３１１ｃは４０°間隔に形成されている。 The first arc-shaped substrate 31 and the second arc-shaped substrate 32 have the same outer shape, and the first arc-shaped substrate 31 and the second arc-shaped substrate 32 are arranged in line symmetry. More specifically, the first notch 311a, the second notch 311b, and the third notch are formed on the inner peripheral edge 311 of the first arc-shaped substrate 31 in the direction around the other side R2 of the circumferential direction R. 311c are formed at equiangular intervals in this order, and the first cutout 311a, the second cutout 311b, and the third cutout 311c are all open in the radial direction. In the present embodiment, the first cutout 311a, the second cutout 311b, and the third cutout 311c are formed at 40 ° intervals.

ここで、第３切り欠き３１１ｃは、周方向の縁に形成されているのに対して、第１切り欠き３１１ａおよび第２切り欠き３１１ｂは、周方向の途中位置に形成されており、第１切り欠き３１１ａおよび第２切り欠き３１１ｂの各々の周方向の寸法は、第３切り欠き３１１ｃの周方向の寸法より大である。本形態において、第１切り欠き３１１ａおよび第２切り欠き３１１ｂの各々の周方向の寸法は、第３切り欠き３１１ｃの周方向の寸法の約２倍である。かかる第１切り欠き３１１ａ、第２切り欠き３１１ｂ、および第３切り欠き３１１ｃは、後述する絶縁部材８の凸部８４１が嵌る係合部として形成されている。 Here, the third notch 311c is formed at an edge in the circumferential direction, whereas the first notch 311a and the second notch 311b are formed at intermediate positions in the circumferential direction. The circumferential dimension of each of the notch 311a and the second notch 311b is larger than the circumferential dimension of the third notch 311c. In this embodiment, the circumferential dimension of each of the first notch 311a and the second notch 311b is approximately twice the circumferential dimension of the third notch 311c. The first cutout 311a, the second cutout 311b, and the third cutout 311c are formed as engaging portions into which convex portions 841 of the insulating member 8 described later fit.

第１円弧状基板３１の外周縁３１２には、周方向Ｒの他方側Ｒ２周りの方向に向かって、第１切り欠き３１２ａ、第２切り欠き３１２ｂ、および第３切り欠き３１２ｃがこの順に等角度間隔に形成されており、かかる第１切り欠き３１２ａ、第２切り欠き３１２ｂ、および第３切り欠き３１２ｃはいずれも、径方向の外側で開放状態にある。本形態において、第１切り欠き３１２ａ、第２切り欠き３１２ｂ、および第３切り欠き３１２ｃは４０°間隔に形成されている。 A first cutout 312a, a second cutout 312b, and a third cutout 312c are equiangular in this order on the outer peripheral edge 312 of the first arc-shaped substrate 31 in the direction around the other side R2 of the circumferential direction R. The first cutout 312a, the second cutout 312b, and the third cutout 312c are all open at the outer side in the radial direction. In the present embodiment, the first cutout 312a, the second cutout 312b, and the third cutout 312c are formed at 40 ° intervals.

また、第２円弧状基板３２の内周縁３２１には、周方向Ｒの一方側Ｒ１周りの方向に向かって、第１切り欠き３２１ａ、第２切り欠き３２１ｂ、および第３切り欠き３２１ｃがこの順に等角度間隔に形成されており、かかる第１切り欠き３２１ａ、第２切り欠き３２１ｂ、および第３切り欠き３２１ｃはいずれも、径方向の内側で開放状態にある。本形態において、第１切り欠き３２１ａ、第２切り欠き３２１ｂ、および第３切り欠き３２１ｃは４０°間隔に形成されている。かかる第１切り欠き３２１ａ、第２切り欠き３２１ｂ、および第３切り欠き３２１ｃは、後述する絶縁部材８の凸部８４１が嵌る係合部として形成されている。 In addition, the first notch 321a, the second notch 321b, and the third notch 321c are arranged in this order on the inner peripheral edge 321 of the second arc-shaped substrate 32 in the direction around one side R1 in the circumferential direction R. The first cutouts 321a, the second cutouts 321b, and the third cutouts 321c are all open at the radially inner side. In this embodiment, the first cutout 321a, the second cutout 321b, and the third cutout 321c are formed at 40 ° intervals. The first cutout 321a, the second cutout 321b, and the third cutout 321c are formed as engaging portions into which convex portions 841 of the insulating member 8 described later fit.

ここで、第３切り欠き３２１ｃは、周方向の縁に形成されているのに対して、第１切り欠き３２１ａおよび第２切り欠き３２１ｂは、周方向の途中位置に形成されており、第１切り欠き３２１ａおよび第２切り欠き３２１ｂの各々の周方向の寸法は、第３切り欠き３２１ｃの周方向の寸法より大である。本形態において、第１切り欠き３２１ａおよび第２切り欠き３２１ｂの各々の周方向の寸法は、第３切り欠き３２１ｃの周方向の寸法の約２倍である。 Here, the third cutout 321c is formed at the circumferential edge, whereas the first cutout 321a and the second cutout 321b are formed at intermediate positions in the circumferential direction. The circumferential dimension of each of the notch 321a and the second notch 321b is larger than the circumferential dimension of the third notch 321c. In this embodiment, the circumferential dimension of each of the first notch 321a and the second notch 321b is approximately twice the circumferential dimension of the third notch 321c.

第２円弧状基板３２の外周縁３２２には、周方向Ｒの一方側Ｒ１周りの方向に向かって、第１切り欠き３２２ａ、第２切り欠き３２２ｂ、および第３切り欠き３２２ｃがこの順に等角度間隔に形成されており、かかる第１切り欠き３２２ａ、第２切り欠き３２２ｂ、および第３切り欠き３２２ｃはいずれも、径方向の外側で開放状態にある。本形態において、第１切り欠き３２２ａ、第２切り欠き３２２ｂ、および第３切り欠き３２２ｃは４０°間隔に形成されている。 A first cutout 322a, a second cutout 322b, and a third cutout 322c are equiangular in this order on the outer peripheral edge 322 of the second arc-shaped substrate 32 in the direction around one side R1 in the circumferential direction R. The first cutout 322a, the second cutout 322b, and the third cutout 322c are all open at the outer side in the radial direction. In this embodiment, the first cutout 322a, the second cutout 322b, and the third cutout 322c are formed at 40 ° intervals.

本形態においては、図３（ａ）に示すように、第１円弧状基板３１の外周縁３１２に形成された第１切り欠き３１２ａ、第２切り欠き３１２ｂ、および第３切り欠き３１２ｃは各々、コイル線６の巻き始め（コイル線６ｕ１、６ｖ１、６ｗ１）を通すコイル線支持部として形成されており、各相のコイル線６ｕ１、６ｖ１、６ｗ１は各々、第１切り欠き３１２ａ、第２切り欠き３１２ｂ、および第３切り欠き３１２ｃによって周方向で位置決めされた状態でコモン用パターン３１０に接続されている。 In this embodiment, as shown in FIG. 3A, the first notch 312a, the second notch 312b, and the third notch 312c formed on the outer peripheral edge 312 of the first arc-shaped substrate 31 are respectively The coil wire 6 is formed as a coil wire support portion through which the winding start of the coil wire 6 (coil wires 6u1, 6v1, 6w1) passes, and the coil wires 6u1, 6v1, 6w1 of each phase are respectively a first notch 312a and a second notch. It is connected to the common pattern 310 while being positioned in the circumferential direction by the 312b and the third notch 312c.

これに対して、第２円弧状基板３２の外周縁３２２に形成された第１切り欠き３２２ａ、第２切り欠き３２２ｂ、および第３切り欠き３２２ｃは各々、コイル線６の巻き終わり（コイル線６ｕ２、６ｖ２、６ｗ２）を通すコイル線支持部として形成されており、各相のコイル線６ｕ２、６ｖ２、６ｗ２は各々、第１切り欠き３２２ａ、第２切り欠き３２２ｂ、および第３切り欠き３２２ｃによって周方向で位置決めされた状態で動力線接続用パターン３２０ｕ、３２０ｖ、３２０ｗに接続されている。また、動力線接続用パターン３２０ｕ、３２０ｖ、３２０ｗには、動力線６０ｕ、６０ｖ、６０ｗが接続されている。本形態では、コイル線６ｕ２、６ｖ２の間から３本の動力線６０ｕ、６０ｖ、６０ｗが引き出されている。 On the other hand, the first cutout 322a, the second cutout 322b, and the third cutout 322c formed on the outer peripheral edge 322 of the second arc-shaped substrate 32 are respectively the end of winding of the coil wire 6 (coil wire 6u2 6v2, 6w2) through which the coil wires 6u2, 6v2, 6w2 of each phase are respectively surrounded by a first notch 322a, a second notch 322b, and a third notch 322c. The power line connection patterns 320u, 320v, and 320w are connected in a state of being positioned in the direction. Further, power lines 60u, 60v, 60w are connected to the power line connection patterns 320u, 320v, 320w. In this embodiment, three power lines 60u, 60v, 60w are drawn from between the coil wires 6u2, 6v2.

また、第１円弧状基板３１および第２円弧状基板３２の内周縁３１１、３２１に形成された第１切り欠き３１２ａ、３２１ａ、第２切り欠き３１２ｂ、３２２ｂ、および第３切り欠き３１２ｃ、３２２ｃは各々、以下に説明するように、絶縁部材８の凸部８４１が嵌る係合部として利用され、第１円弧状基板３１および第２円弧状基板３２の位置決めに用いられている。 The first cutouts 312a and 321a, the second cutouts 312b and 322b, and the third cutouts 312c and 322c formed on the inner peripheral edges 311 and 321 of the first arcuate substrate 31 and the second arcuate substrate 32 are as follows. As described below, each is used as an engaging portion into which the convex portion 841 of the insulating member 8 is fitted, and is used for positioning the first arc-shaped substrate 31 and the second arc-shaped substrate 32.

（絶縁部材９の構成）
図５は、本発明を適用したモータのステータに用いた絶縁部材の説明図であり、図５（ａ）、（ｂ）、（ｃ）、（ｄ）、（ｅ）は、絶縁部材の底面図、絶縁部材を周方向Ｒの一方側Ｒ１からみた側面図、絶縁部材を径方向の外側からみた正面図、絶縁部材を周方向Ｒの一方側Ｒ１からみた斜視図、および絶縁部材を周方向Ｒの他方側Ｒ２からみた斜視図である。図１に示す反出力側Ｌ２の絶縁部材８と出力側Ｌ１の絶縁部材９とは同一構成のものが用いられており、本形態では、反出力側Ｌ２の絶縁部材８によって、配線基板３の固定やコイル線６の端部と配線基板３との接続が行われている。そこで、反出力側Ｌ２の絶縁部材８を中心に構成等の説明を行う。本形態において、絶縁部材８は樹脂成型品である。 (Configuration of insulating member 9)
FIG. 5 is an explanatory view of an insulating member used for a stator of a motor to which the present invention is applied. FIGS. 5 (a), (b), (c), (d), and (e) are bottom views of the insulating member. Figure, side view of insulating member viewed from one side R1 in the circumferential direction R, front view of insulating member viewed from the outside in the radial direction, perspective view of the insulating member viewed from one side R1 in the circumferential direction R, and circumferential direction of the insulating member It is the perspective view seen from the other side R2 of R. The insulating member 8 on the counter-output side L2 and the insulating member 9 on the output side L1 shown in FIG. 1 have the same configuration. In this embodiment, the insulating member 8 on the counter-output side L2 uses the insulating member 8 on the counter-output side L2. Fixing and connection between the end of the coil wire 6 and the wiring board 3 are performed. Therefore, the configuration and the like will be described focusing on the insulating member 8 on the non-output side L2. In this embodiment, the insulating member 8 is a resin molded product.

図５に示すように、絶縁部材８は、突極５１のモータ軸線方向Ｌの外側端面（反出力側Ｌ２の端面および側面を覆う板状の胴部８２と、内周側円弧部５２を覆う板状の内周側板状部８１と、外周側円弧部５３（環状コア部５３０）を覆う外周側板状部８３とを備えている。本形態において、胴部８２の側面にはコイル線６を巻回したときのコイル線６の位置を規定する複数の溝８２０が形成されている。 As shown in FIG. 5, the insulating member 8 covers the outer end surface of the salient pole 51 in the motor axial direction L (the plate-shaped body portion 82 that covers the end surface and the side surface of the counter-output side L <b> 2) and the inner circumferential arc portion 52. A plate-shaped inner peripheral side plate-like portion 81 and an outer peripheral side plate-like portion 83 covering the outer peripheral side arc portion 53 (annular core portion 530) are provided. A plurality of grooves 820 that define the position of the coil wire 6 when wound are formed.

絶縁部材８は、内周側板状部８１に対してモータ軸線方向Ｌの反出力側Ｌ２には、胴部８２の内周側端部（一方側端部）に繋がる第１鍔部８４（壁部／内周側鍔部）を備えている一方、外周側板状部８３に対してモータ軸線方向Ｌの反出力側Ｌ２には、胴部８２の外周側端部（他方側端部）に繋がる第２鍔部８５（隔壁／外周側鍔部）を備えている。このため、第１鍔部８４は、胴部８２を挟んで第２鍔部８５（隔壁）に対向している。このように構成した胴部８２、第１鍔部８４および第２鍔部８５によって、コイル巻回部８０が形成されている。また、第２鍔部８５に対して胴部８２とは反対側（外周側）には、コイル線６の渡り線部分６０（図３（ａ）参照）が周方向に引き回される引き回し部８６が形成されており、第２鍔部８５は、胴部８２（コイル巻回部８０）と引き回し部８６とを仕切る隔壁として構成されている。また、絶縁部材８は、引き回し部８６に対して第２鍔部８５（隔壁）とは反対側に対向壁８７を備えている。ここで、第２鍔部８５には、周方向Ｒの他方側Ｒ２に引き回し部８６から胴部８２（コイル巻回部８０）の側にコイル線６を通す切り欠き８５１が形成され、周方向Ｒの一方側Ｒ１には、胴部８２（コイル巻回部８０）の側から引き回し部８６にコイル線６を通す切り欠き８５２が形成されている。本形態において、切り欠き８５１は、胴部８２の表面で開口する程、モータ軸線Ｌ方向の出力側Ｌ１に向けて深い位置まで切り欠かれており、切り欠き８５２は、モータ軸線Ｌ方向の出力側Ｌ１に向けて浅い位置まで切り欠かれている。 The insulating member 8 has a first flange 84 (wall) connected to the inner peripheral side end (one side end) of the body 82 on the opposite output side L2 in the motor axial direction L with respect to the inner peripheral side plate-shaped portion 81. Part / inner peripheral side flange part), while being connected to the outer peripheral side end part (the other side end part) of the body part 82 on the opposite output side L2 in the motor axial direction L with respect to the outer peripheral side plate-like part 83. A second flange 85 (partition wall / outer peripheral flange) is provided. For this reason, the 1st collar part 84 is facing the 2nd collar part 85 (partition wall) on both sides of the trunk | drum 82. FIG. A coil winding portion 80 is formed by the body portion 82, the first flange portion 84, and the second flange portion 85 configured as described above. Further, on the side (outer peripheral side) opposite to the body portion 82 with respect to the second flange portion 85, a routing portion in which the crossover portion 60 (see FIG. 3A) of the coil wire 6 is routed in the circumferential direction. 86 is formed, and the second flange portion 85 is configured as a partition wall that partitions the body portion 82 (coil winding portion 80) and the routing portion 86. The insulating member 8 includes an opposing wall 87 on the side opposite to the second flange portion 85 (partition wall) with respect to the routing portion 86. Here, the second flange portion 85 is formed with a notch 851 through which the coil wire 6 is passed from the routing portion 86 to the body portion 82 (coil winding portion 80) side on the other side R2 in the circumferential direction R. On one side R1 of R, a notch 852 through which the coil wire 6 is passed from the side of the body portion 82 (coil winding portion 80) to the routing portion 86 is formed. In this embodiment, the cutout 851 is cut to a deeper position toward the output side L1 in the motor axis L direction as the surface of the body 82 opens, and the cutout 852 is output in the motor axis L direction. It is cut out to a shallow position toward the side L1.

このように構成した絶縁部材８において、第１鍔部８４のモータ軸線Ｌ方向の反出力側Ｌ２の端面では、第１鍔部８４の周方向の両側に、モータ軸線Ｌ方向の反出力側Ｌ２に向けて突出した円柱状の凸部８４１が形成されている。かかる凸部８４１は、胴部８２に対して周方向Ｒの両側に形成されており、胴部８２に対して径方向で重なる位置には形成されていない。本形態において、凸部８４１の外径（直径）は、第１円弧状基板３１および第２円弧状基板３２の内周縁３１１、３２１に形成された第１切り欠き３１２ａ、３２１ａ、第２切り欠き３１２ｂ、３２２ｂ、および第３切り欠き３１２ｃ、３２２ｃの周方向の寸法（深さ寸法）以下である。また、第１鍔部８４は、径方向の内側に位置する内周面が円弧状に湾曲した面になっているのに対して、第２鍔部８５に対向する外面は周方向に直線的に延在する平坦面になっている。このため、第１鍔部８４は、周方向の両側が周方向の内側より径方向の厚さが大の肉厚部分８４９になっており（図５（ａ）参照）、かかる肉厚部分８４９の反出力側Ｌ２の端面に凸部８４１が形成されている。このため、凸部８４１を外径（直径）が大きくて強度が大の円柱状に形成することができる。 In the insulating member 8 configured as described above, the opposite end surface L2 of the first flange portion 84 in the motor axis L direction on the opposite end side L2 in the motor axis L direction on both sides in the circumferential direction of the first flange portion 84. A cylindrical convex portion 841 projecting toward is formed. The convex portions 841 are formed on both sides of the body portion 82 in the circumferential direction R, and are not formed at positions that overlap the body portion 82 in the radial direction. In this embodiment, the outer diameter (diameter) of the convex portion 841 is set such that the first cutouts 312a and 321a formed on the inner peripheral edges 311 and 321 of the first arcuate substrate 31 and the second arcuate substrate 32 are the second cutouts. It is below the dimension (depth dimension) of the circumferential direction of 312b, 322b and the 3rd notch 312c, 322c. The first flange 84 has a radially curved inner circumferential surface located inside in the radial direction, whereas the outer surface facing the second flange 85 is linear in the circumferential direction. It is a flat surface that extends to. Therefore, the first flange portion 84 is a thick portion 849 whose both radial sides are thicker in the radial direction than the inner side in the circumferential direction (see FIG. 5A). A convex portion 841 is formed on the end face of the non-output side L2. For this reason, the convex part 841 can be formed in a cylindrical shape having a large outer diameter (diameter) and a high strength.

また、絶縁部材８において、第２鍔部８５の外周面（引き回し部８６側の壁面）には、周方向Ｒの略中央部分に、径方向の内側（胴部８２が位置する側）に向けて凹む凹部８５０が形成されており、かかる凹部８５０は、胴部８２に対して径方向で重なる位置に形成されている。ここで、凹部８５０の周方向Ｒの他方側Ｒ２には切り欠き８５１が形成され、凹部８５０の周方向Ｒの一方側Ｒ１には切り欠き８５６が形成されている。本形態において、凹部８５０の深さ寸法（径方向の寸法）は、コイル線６や、後述する動力線６０ｕ、６０ｖ、６０ｗの太さより大である。 Further, in the insulating member 8, the outer peripheral surface (wall surface on the side of the routing portion 86) of the second flange portion 85 is directed to the substantially central portion in the circumferential direction R and toward the radially inner side (the side where the body portion 82 is located). A concave portion 850 is formed, and the concave portion 850 is formed at a position overlapping the body portion 82 in the radial direction. Here, a notch 851 is formed on the other side R2 of the recess 850 in the circumferential direction R, and a notch 856 is formed on the one side R1 of the recess 850 in the circumferential direction R. In this embodiment, the depth dimension (diameter dimension) of the recess 850 is larger than the thickness of the coil wire 6 and power lines 60u, 60v, 60w described later.

また、対向壁８７には、凹部８５０径方向外側で重なる位置に対向壁８７を径方向で貫通する切り欠き８７０が形成されている。本形態において、切り欠き８７０の周方向の寸法は、凹部８５０の周方向の寸法より小である。なお、対向壁８７において、切り欠き８７０に周方向Ｒの他方側で隣り合う位置には、対向壁８７を介して外側と引き回し部８６との間でコイル線６を通す切り欠き８７７が形成されている。 Further, the opposing wall 87 is formed with a notch 870 that penetrates the opposing wall 87 in the radial direction at a position overlapping the concave portion 850 on the radially outer side. In this embodiment, the circumferential dimension of the notch 870 is smaller than the circumferential dimension of the recess 850. In the opposing wall 87, a notch 877 through which the coil wire 6 is passed between the outside and the routing portion 86 is formed at the position adjacent to the notch 870 on the other side in the circumferential direction R. ing.

（ステータ４およびモータ１の製造方法、および細部の構成）
図６は、本発明を適用したステータ４およびモータ１の製造工程において、コイル線６を巻回する方法を模式的に示す説明図であり、図６（ａ）、（ｂ）は、コイル線６を巻回する際の平面的な様子を示す説明図、およびコイル線６を巻回した様子を径方向外側からみた様子を示す説明図である。 (Manufacturing method of stator 4 and motor 1 and detailed configuration)
FIG. 6 is an explanatory view schematically showing a method of winding the coil wire 6 in the manufacturing process of the stator 4 and the motor 1 to which the present invention is applied. FIGS. 6 (a) and 6 (b) are coil wires. FIG. 6 is an explanatory view showing a planar state when winding 6 and an explanatory view showing a state where the coil wire 6 is wound as viewed from the outside in the radial direction.

以下、本発明を適用したステータ４およびモータ１の製造方法を説明しながら細部の構成を説明する。 Hereinafter, a detailed configuration will be described while explaining a method of manufacturing the stator 4 and the motor 1 to which the present invention is applied.

本形態のステータ４およびモータ１を製造するには、図６（ａ）、（ｂ）に巻回工程において、複数の分割コア５０の各々に絶縁部材８、９を装着した後、複数の分割コア５０を直線的に配列させる。次に、複数の分割コア５０のうち、ｕ相に対応する分割コア５０および絶縁部材８、９にコイル線６（ｕ相のコイル線６ｕ）を巻回し、ｖ相に対応する分割コア５０および絶縁部材８、９にコイル線６（ｖ相のコイル線６ｖ）を巻回し、ｗ相に対応する分割コア５０および絶縁部材８、９にコイル線６（ｗ相のコイル線６ｗ）を巻回する。 In order to manufacture the stator 4 and the motor 1 of this embodiment, in the winding process shown in FIGS. 6A and 6B, the insulating members 8 and 9 are attached to each of the plurality of divided cores 50, and then the plurality of divisions are performed. The cores 50 are arranged linearly. Next, coil wire 6 (u-phase coil wire 6u) is wound around divided core 50 corresponding to u phase and insulating members 8 and 9 among a plurality of divided cores 50, and divided core 50 corresponding to v-phase and The coil wire 6 (v-phase coil wire 6v) is wound around the insulating members 8 and 9, and the coil wire 6 (w-phase coil wire 6w) is wound around the split core 50 and the insulating members 8 and 9 corresponding to the w-phase. To do.

その際、コイル線６は、他の相の分割コア５０および絶縁部材８、９を跨ぐようにして、対応する相の分割コア５０および絶縁部材８、９まで引き回す。また、他の相の分割コア５０および絶縁部材８、９を跨ぐコイル線６は、図５（ａ）に実線で示すように、渡り線部分６０として、絶縁部材８の引き回し部８６を通す。 At that time, the coil wire 6 is routed to the split core 50 and the insulating members 8 and 9 of the corresponding phase so as to straddle the split core 50 and the insulating members 8 and 9 of the other phases. In addition, the coil wire 6 straddling the other-phase split core 50 and the insulating members 8 and 9 passes the routing portion 86 of the insulating member 8 as a crossover portion 60 as shown by a solid line in FIG.

次に、分割コア５０を円となるように配列させる。その際、渡り線部分６０には弛みが発生し、かかる弛み部分が、図１に示すモータケース２にステータ４を収容した際にモータケース２と接すると、耐電圧が低下する。特に、ステータ４をモータケース２に焼嵌めにより固定する場合、その熱によって、コイル線６の絶縁層が損傷し、短絡する虞もある。 Next, the divided cores 50 are arranged in a circle. At that time, slack occurs in the crossover portion 60, and when the slack portion comes into contact with the motor case 2 when the stator 4 is accommodated in the motor case 2 shown in FIG. 1, the withstand voltage decreases. In particular, when the stator 4 is fixed to the motor case 2 by shrink fitting, the heat may damage the insulating layer of the coil wire 6 and cause a short circuit.

そこで、本形態では、渡り線処理工程において、図５（ａ）に示すように、対向壁８７に形成した切り欠き８７０から治具Ｓを差し込み、渡り線部分６０を第２鍔部８５に形成した凹部８５０に押し込む。その際、第２鍔部８５において凹部８５０の縁に相当する部分が、渡り線部分６０を確実に屈曲させるので、渡り線部分６０の一部６０ａは、凹部８５０内に確実に入り込む。それ故、渡り線部分６０は、適度な緊張状態となるため、モータケース２にステータ４を収容した際において、渡り線部分６０とモータケース２とが離間した状態とすることができる。ここで、凹部８５０の周方向の幅寸法は、切り欠き８７０の周方向の幅寸法より大であり、切り欠き８７０の周方向の開口幅は、凹部８５０の周方向の開口幅より狭い。従って、図５（ａ）に示すように、治具Ｓで渡り線部分６０を凹部８５０内に押し当てた場合、凹部８５０の周方向の中央部分に位置する渡り線部分６０は凹部８５０内に入り込むが、周方法の両側では、渡り線部分６０がなだらかに湾曲して外側に引き出されるので、渡り線部分６０が傷つきにくい。すなわち、凹部８７０の周方向の全体に渡り線部分６０を押し込むと、凹部８７０の径方向外側に位置する角部分に渡り線部分６０が強く当たって傷つくことがあるが、本形態によれば、かかる事態の発生を回避することができる。 Therefore, in this embodiment, in the crossover processing step, as shown in FIG. 5A, the jig S is inserted from the notch 870 formed in the facing wall 87, and the crossover portion 60 is formed in the second flange portion 85. Into the recessed portion 850. At this time, the portion corresponding to the edge of the recessed portion 850 in the second flange portion 85 surely bends the connecting wire portion 60, so that the portion 60 a of the connecting wire portion 60 surely enters the recessed portion 850. Therefore, since the connecting wire portion 60 is in an appropriate tension state, when the stator 4 is accommodated in the motor case 2, the connecting wire portion 60 and the motor case 2 can be separated from each other. Here, the circumferential width dimension of the recess 850 is larger than the circumferential width dimension of the notch 870, and the circumferential opening width of the notch 870 is narrower than the circumferential opening width of the recess 850. Therefore, as shown in FIG. 5A, when the connecting wire portion 60 is pressed into the recess 850 by the jig S, the connecting wire portion 60 located at the center portion in the circumferential direction of the recess 850 is placed in the recess 850. However, on both sides of the circumferential method, the crossover portion 60 is gently curved and pulled out, so the crossover portion 60 is not easily damaged. That is, when the crossover portion 60 is pushed into the entire circumferential direction of the concave portion 870, the crossover portion 60 may be strongly hit against the corner portion located on the radially outer side of the concave portion 870, but may be damaged. The occurrence of such a situation can be avoided.

次に、絶縁部材８のモータ軸線方向Ｌの反出力側に配線基板３（第１円弧状基板３１および第２円弧状基板３２）を重ねる。その際、図２（ａ）、図３（ａ）、および図４（ａ）に示すように、絶縁部材８の第１鍔部８４に形成した凸部８４１は、第１円弧状基板３１および第２円弧状基板３２の内周縁３１１、３２１に形成された第１切り欠き３１１ａ、３２１ａ、第２切り欠き３１１ｂ、３２１ｂ、および第３切り欠き３１１ｃ、３２１ｃに嵌る。その際、第３切り欠き３１１ｃ、３２１ｃには１本の凸部８４１が嵌るのに対して、第１切り欠き３１１ａ、３２１ａ、および第２切り欠き３１１ｂ、３２１ｂには、周方向Ｒで隣り合う２つの第２鍔部８４の各々に形成された２つの凸部８４１が嵌ることになる。ここで、第１切り欠き３１１ａ、３２１ａ、第２切り欠き３１１ｂ、３２１ｂ、および第３切り欠き３１１ｃ、３２１ｃは径方向内側に開放状態にあるため、第１円弧状基板３１および第２円弧状基板３２を径方向で位置をずらし、第１円弧状基板３１および第２円弧状基板３２を適正な位置に配置する。本形態において、凸部８４１の外径（直径）は、第１円弧状基板３１および第２円弧状基板３２の内周縁３１１、３２１に形成された第１切り欠き３１２ａ、３２１ａ、第２切り欠き３１２ｂ、３２２ｂ、および第３切り欠き３１２ｃ、３２２ｃの周方向の寸法（深さ寸法）以下である。このため、凸部８４１は、第１円弧状基板３１および第２円弧状基板３２の第１切り欠き３１２ａ、３２１ａ、第２切り欠き３１２ｂ、３２２ｂ、および第３切り欠き３１２ｃ、３２２ｃの内側に完全に入り込んだ状態となる。 Next, the wiring substrate 3 (the first arc-shaped substrate 31 and the second arc-shaped substrate 32) is overlaid on the opposite side of the insulating member 8 in the motor axial direction L. At that time, as shown in FIGS. 2 (a), 3 (a), and 4 (a), the convex portion 841 formed on the first flange portion 84 of the insulating member 8 has the first arc-shaped substrate 31 and The first notches 311a and 321a, the second notches 311b and 321b, and the third notches 311c and 321c formed in the inner peripheral edges 311 and 321 of the second arcuate substrate 32 are fitted. At this time, one convex portion 841 fits in the third cutouts 311c and 321c, whereas the first cutouts 311a and 321a and the second cutouts 311b and 321b are adjacent in the circumferential direction R. Two convex portions 841 formed on each of the two second flange portions 84 are fitted. Here, since the first cutouts 311a and 321a, the second cutouts 311b and 321b, and the third cutouts 311c and 321c are open radially inward, the first arcuate substrate 31 and the second arcuate substrate 32 is shifted in the radial direction, and the first arc-shaped substrate 31 and the second arc-shaped substrate 32 are arranged at appropriate positions. In this embodiment, the outer diameter (diameter) of the convex portion 841 is set such that the first cutouts 312a and 321a formed on the inner peripheral edges 311 and 321 of the first arcuate substrate 31 and the second arcuate substrate 32 are the second cutouts. It is below the dimension (depth dimension) of the circumferential direction of 312b, 322b and the 3rd notch 312c, 322c. Therefore, the convex portion 841 is completely inside the first cutouts 312a and 321a, the second cutouts 312b and 322b, and the third cutouts 312c and 322c of the first arcuate substrate 31 and the second arcuate substrate 32. It will be in the state where it entered.

このようにして、第１円弧状基板３１および第２円弧状基板３２を適正な位置に配置した後、図５（ｃ）に点線で示すように、凸部８４１の先端部を加熱溶融させた後、押し潰して拡径させ、第１円弧状基板３１および第２円弧状基板３２に対する抜け止め部８４１ａを構成する。なお、凸部８４１において第１円弧状基板３１および第２円弧状基板３２から突出している部分に対して、第１円弧状基板３１および第２円弧状基板３２に跨るように接着剤を塗布した後、硬化させ、接着剤によって抜け止め部を構成してもよい。また、凸部８４１の先端部を加熱溶融させた後、押し潰して抜け止め部８４１ａを構成した後、抜け止め部８４１ａと第１円弧状基板３１および第２円弧状基板３２とに跨るように接着剤を塗布した後、硬化させてもよい。 In this way, after the first arc-shaped substrate 31 and the second arc-shaped substrate 32 are arranged at appropriate positions, the tip end portion of the convex portion 841 is heated and melted as indicated by a dotted line in FIG. After that, it is crushed and expanded in diameter to form a retaining portion 841a for the first arc-shaped substrate 31 and the second arc-shaped substrate 32. Note that an adhesive is applied to the portions of the convex portion 841 that protrude from the first arc-shaped substrate 31 and the second arc-shaped substrate 32 so as to straddle the first arc-shaped substrate 31 and the second arc-shaped substrate 32. Then, it may be cured and the retaining portion may be constituted by an adhesive. Further, after the tip portion of the convex portion 841 is heated and melted and then crushed to form the retaining portion 841a, the retaining portion 841a and the first arc-shaped substrate 31 and the second arc-shaped substrate 32 are straddled. After applying the adhesive, it may be cured.

次に、図３（ａ）を参照して説明したように、第１円弧状基板３１では、各相のコイル線６ｕ１、６ｖ１、６ｗ１を各々、第１切り欠き３１２ａ、第２切り欠き３１２ｂ、および第３切り欠き３１２ｃによって周方向で位置決めした状態でコモン用パターン３１０にハンダにより接続する。また、第２円弧状基板３２では、各相のコイル線６ｕ２、６ｖ２、６ｗ２を各々、第１切り欠き３２２ａ、第２切り欠き３２２ｂ、および第３切り欠き３２２ｃによって周方向で位置決めした状態で動力線接続用パターン３２０ｕ、３２０ｖ、３２０ｗにハンダにより接続する。また、第２円弧状基板３２では、動力線接続用パターン３２０ｕ、３２０ｖ、３２０ｗには、動力線６０ｕ、６０ｖ、６０ｗをハンダにより接続する。 Next, as described with reference to FIG. 3A, in the first arc-shaped substrate 31, the coil wires 6 u 1, 6 v 1, 6 w 1 of each phase are respectively provided with the first notch 312 a, the second notch 312 b, And it connects with the pattern 310 for common with solder | solder in the state positioned in the circumferential direction by the 3rd notch 312c. In the second arcuate substrate 32, the power is applied in a state where the coil wires 6u2, 6v2, 6w2 of each phase are positioned in the circumferential direction by the first notch 322a, the second notch 322b, and the third notch 322c, respectively. The line connection patterns 320u, 320v, and 320w are connected by solder. In the second arc-shaped substrate 32, the power lines 60u, 60v, and 60w are connected to the power line connection patterns 320u, 320v, and 320w by soldering.

しかる後に、ステータ４をモータケース２に収容する。なお、本形態では、絶縁部材８に配線基板３を重ねる前に、渡り線部分６０の一部６０ａを第２鍔部８５の凹部８５０に押し込んだが、絶縁部材８に配線基板３を固定した後、渡り線部分６０の一部６０ａを第２鍔部８５の凹部８５０に押し込んでもよい。 Thereafter, the stator 4 is accommodated in the motor case 2. In this embodiment, a part 60a of the crossover portion 60 is pushed into the recess 850 of the second flange 85 before the wiring board 3 is stacked on the insulating member 8, but after the wiring board 3 is fixed to the insulating member 8. The part 60 a of the crossover part 60 may be pushed into the recess 850 of the second flange 85.

（本形態の主な効果）
以上説明したように、本形態のステータ４およびモータ１では、絶縁部材８には、コイル線６が巻回される胴部８２に径方向で隣り合う位置に引き回し部８６が設けられており、かかる引き回し部８６においてはコイル線６の渡り線部分６０が周方向に引き回される。ここで、胴部８２と引き回し部８６とを仕切る第２鍔部８５（隔壁）の引き回し部８６側の壁面には、胴部８２が位置する側に向けて凹む凹部８５０が形成されており、渡り線部分６０を引き回し部８６に通した後、渡り線部分６０の一部６０ａを凹部８５０内に向けて曲げてある。このため、渡り線部分６０は、適正な緊張状態にあるので、渡り線部分６０が不用意に動かない。それ故、渡り線部分６０とモータケース２等とを適正に離間させておくことができるので、短絡等の不具合が発生しにくい。 (Main effects of this form)
As described above, in the stator 4 and the motor 1 of the present embodiment, the insulating member 8 is provided with the routing portion 86 at a position adjacent to the body portion 82 around which the coil wire 6 is wound in the radial direction. In the routing portion 86, the crossover portion 60 of the coil wire 6 is routed in the circumferential direction. Here, a concave portion 850 that is recessed toward the side where the body portion 82 is located is formed on the wall surface on the side of the routing portion 86 of the second flange portion 85 (partition wall) that partitions the body portion 82 and the routing portion 86. After passing the crossover portion 60 through the routing portion 86, a part 60 a of the crossover portion 60 is bent toward the recess 850. For this reason, since the crossover part 60 is in an appropriate tension state, the crossover part 60 does not move carelessly. Therefore, the crossover portion 60 and the motor case 2 and the like can be appropriately separated from each other, so that problems such as a short circuit hardly occur.

また、絶縁部材８は、引き回し部８６に対して第２鍔部８５とは反対側に対向壁８７を備え、対向壁８７には、凹部８５０に径方向で重なる位置に切り欠き８７０が形成されている。このため、渡り線部分６０を引き回し部８６に通した後、対向壁８７の切り欠き８７０から治具Ｓを通して渡り線部分６０の一部６０ａを凹部８５０内に向けて曲げることができる。また、配線基板３（第１円弧状基板３１および第２円弧状基板３２）を取り付けた後でも、切り欠き８７０を介して凹部８５０内の状態を確認したり、確認結果に基づいて、治具Ｓで渡り線部分６０の一部を凹部８４０内に向けて再度折り曲げる等の処理を行うことができる。 In addition, the insulating member 8 includes an opposing wall 87 on the opposite side to the second flange portion 85 with respect to the routing portion 86, and a notch 870 is formed in the opposing wall 87 at a position overlapping the concave portion 850 in the radial direction. ing. For this reason, after passing the crossover portion 60 through the routing portion 86, a part 60 a of the crossover portion 60 can be bent into the recess 850 from the notch 870 of the opposing wall 87 through the jig S. Further, even after the wiring substrate 3 (the first arc-shaped substrate 31 and the second arc-shaped substrate 32) is attached, the state in the recess 850 is confirmed through the notch 870, and the jig is determined based on the confirmation result. In S, it is possible to perform a process such as bending a part of the crossover portion 60 into the recess 840 again.

また、凹部８５０は、胴部８２に対して径方向で重なる位置に設けられている。このため、隔壁８５の厚さを薄くすることができるので、第２鍔部８５（隔壁）にヒケ等が発生しにくい。従って、第２鍔部８５（隔壁）の胴部８２側の面にヒケに起因する凹凸が発生しにくいので、凹凸によって巻線量が少なくなるという事態を回避することができる。 Further, the concave portion 850 is provided at a position overlapping the body portion 82 in the radial direction. For this reason, since the thickness of the partition wall 85 can be reduced, sink marks or the like hardly occur in the second flange portion 85 (partition wall). Therefore, since unevenness due to sink marks is unlikely to occur on the surface of the second flange portion 85 (partition wall) on the body portion 82 side, it is possible to avoid a situation in which the winding amount is reduced due to the unevenness.

また、絶縁部材８には配線基板３（第１円弧状基板３１および第２円弧状基板３２）が重ねて配置されており、絶縁部材８の第１鍔部８４に形成された凸部８４１が、第１円弧状基板３１および第２円弧状基板３２の内周縁３１１、３２１に形成された係合部（第１切り欠き３１２ａ、３２１ａ、第２切り欠き３１２ｂ、３２１ｂ、および第３切り欠き３１２ｃ、３２１ｃ）に嵌る。このため、第１円弧状基板３１および第２円弧状基板３２を容易に位置決めすることができる。また、コイル線６等から配線基板３を変位させようとする力が加わっても、配線基板３は、絶縁部材８上の所定位置に位置決めされた状態にある。それ故、ステータ４やモータ１の組み立てに多大な手間がかからない。 In addition, the wiring board 3 (the first arc-shaped substrate 31 and the second arc-shaped substrate 32) is arranged on the insulating member 8 so as to overlap with each other, and a convex portion 841 formed on the first flange portion 84 of the insulating member 8 is formed. , Engaging portions (first cutouts 312a and 321a, second cutouts 312b and 321b, and third cutout 312c) formed on the inner peripheral edges 311 and 321 of the first arcuate substrate 31 and the second arcuate substrate 32. , 321c). Therefore, the first arc-shaped substrate 31 and the second arc-shaped substrate 32 can be easily positioned. Even when a force for displacing the wiring board 3 is applied from the coil wire 6 or the like, the wiring board 3 is positioned at a predetermined position on the insulating member 8. Therefore, it does not take much time to assemble the stator 4 and the motor 1.

また、凸部８４１に径方向内側に向かう力がかかった際、その根元部分に応力が集中しやすいが、本形態において、凸部８４１は円柱状であり、根元部分が円柱状である。このため、凸部８４１が四角柱である場合に比して、力が分散されるので、凸部８４１が折れ難い。また、凸部８４１は、第１鍔部８４（壁部）において周方向で隣り合う個所より径方向の厚さが大の肉厚部分８４９の反出力側Ｌ２の端面に形成されている。このため、凸部８４１を外径（直径）が大きな円柱状に形成することができる。それ故、凸部８４１が折れ難い。 Further, when a force directed radially inward is applied to the convex portion 841, stress tends to concentrate on the root portion, but in this embodiment, the convex portion 841 has a cylindrical shape and the root portion has a cylindrical shape. For this reason, compared with the case where the convex part 841 is a quadrangular prism, since force is disperse | distributed, the convex part 841 is hard to bend. Further, the convex portion 841 is formed on the end face on the counter-output side L2 of the thick portion 849 having a larger radial thickness than a portion adjacent in the circumferential direction in the first flange portion 84 (wall portion). For this reason, the convex part 841 can be formed in a cylindrical shape with a large outer diameter (diameter). Therefore, the convex portion 841 is not easily broken.

また、第１切り欠き３１２ａ、３２１ａ、第２切り欠き３１２ｂ、３２１ｂ、および第３切り欠き３１２ｃ、３２１ｃは径方向内側に開放状態にあるため、第１円弧状基板３１および第２円弧状基板３２を径方向で位置をずらし、第１円弧状基板３１および第２円弧状基板３２を適正な位置に配置することができる。 In addition, since the first cutouts 312a and 321a, the second cutouts 312b and 321b, and the third cutouts 312c and 321c are open radially inward, the first arcuate substrate 31 and the second arcuate substrate 32 are provided. The first arc-shaped substrate 31 and the second arc-shaped substrate 32 can be arranged at appropriate positions by shifting the position in the radial direction.

また、第１円弧状基板３１および第２円弧状基板３２を適正な位置に配置した後、凸部８４１の先端部を加熱溶融させた後、押し潰して、抜け止め部８４１ａを構成しているので、簡単な構成で、第１円弧状基板３１および第２円弧状基板３２の抜けを防止することができる。 Further, after the first arc-shaped substrate 31 and the second arc-shaped substrate 32 are arranged at appropriate positions, the tip end portion of the convex portion 841 is heated and melted and then crushed to constitute a retaining portion 841a. Therefore, the first arc-shaped substrate 31 and the second arc-shaped substrate 32 can be prevented from coming off with a simple configuration.

また、本形態では、配線基板３として、１８０°未満の円弧角をもって延在する円弧状基板（第１円弧状基板３１および第２円弧状基板３２）が用いられており、かかる構成の円弧状基板であれば、大型基板からの抜き位置を工夫すれば、円環状の基板に比して、大型基板からの取り数を増やすことができる。それ故、配線基板３のコストを低減することができるので、ステータ４およびモータ１のコストを低減することができる。 In this embodiment, as the wiring substrate 3, arc-shaped substrates (the first arc-shaped substrate 31 and the second arc-shaped substrate 32) extending with an arc angle of less than 180 ° are used, and the arc shape having such a configuration is used. If it is a board | substrate, if the extraction position from a large sized board | substrate is devised, the number of extraction from a large sized board | substrate can be increased compared with an annular | circular shaped board | substrate. Therefore, since the cost of the wiring board 3 can be reduced, the cost of the stator 4 and the motor 1 can be reduced.

特に本形態のモータ１において、第１円弧状基板３１および第２円弧状基板３２の各々の角度範囲θはいずれも、約１００°であり、以下の条件
（３６０／（ｎ×ｍ））×（ｍ−１）＜θ＜（３６０／（ｎ×ｍ））×ｍ
ｎ＝相数
ｍ＝１相当たりの極数
を満たしている。すなわち、本形態では、ｎ＝３およびｍ＝３であるため、第１円弧状基板３１および第２円弧状基板３２の各々の角度範囲θは、以下の条件
８０°＜θ＜１２０°
を満たしている。かかる構成によれば、第１円弧状基板３１および第２円弧状基板３１を必要最小限度のサイズにでき、大型基板からの取り数を増やすことができるとともに、各相のコイル線６を容易に第１円弧状基板３１および第２円弧状基板３２に接続することができる。すなわち、各相のコイル線６を第１円弧状基板３１および第２円弧状基板３２に接続するには、少なくとも、（１相当たりの極数ｍ−１）に相当する角度範囲以上の円弧角の第１円弧状基板３１および第２円弧状基板３２が必要であるが、１相当たりの極数ｍに相当する角度範囲の円弧角の第１円弧状基板３１および第２円弧状基板３２であれば、各相のコイル線６を第１円弧状基板３１および第２円弧状基板３２に接続するのに十分である。 In particular, in the motor 1 of this embodiment, each of the angle ranges θ of the first arc-shaped substrate 31 and the second arc-shaped substrate 32 is about 100 °, and the following condition (360 / (n × m)) × (M−1) <θ <(360 / (n × m)) × m
n = number of phases m = the number of poles per phase is satisfied. That is, in this embodiment, since n = 3 and m = 3, the angle ranges θ of the first arc-shaped substrate 31 and the second arc-shaped substrate 32 are as follows: 80 ° <θ <120 °
Meet. According to such a configuration, the first arc-shaped substrate 31 and the second arc-shaped substrate 31 can be reduced to the necessary minimum size, the number of large substrates can be increased, and the coil wires 6 of each phase can be easily formed. It can be connected to the first arc-shaped substrate 31 and the second arc-shaped substrate 32. That is, in order to connect the coil wire 6 of each phase to the first arc-shaped substrate 31 and the second arc-shaped substrate 32, at least an arc angle equal to or larger than an angle range corresponding to (the number of poles per phase m−1). The first arc-shaped substrate 31 and the second arc-shaped substrate 32 are required, but the first arc-shaped substrate 31 and the second arc-shaped substrate 32 having an arc angle in an angular range corresponding to the number of poles m per phase are required. If there is, it is sufficient to connect the coil wire 6 of each phase to the first arc-shaped substrate 31 and the second arc-shaped substrate 32.

また、配線基板３として、複数枚の円弧状基板（第１円弧状基板３１および第２円弧状基板３２）を用いれば、基板毎にパターンを形成する面を変えることができる。それ故、円弧状基板（第１円弧状基板３１および第２円弧状基板３２）として片面基板を用いることができるので、コストをさらに低減することができるとともに、円弧状基板として片面基板を用いた場合でも、コイル線６等の接続に支障がない。 If a plurality of arc-shaped substrates (the first arc-shaped substrate 31 and the second arc-shaped substrate 32) are used as the wiring substrate 3, the surface on which the pattern is formed can be changed for each substrate. Therefore, since single-sided substrates can be used as the arc-shaped substrates (the first arc-shaped substrate 31 and the second arc-shaped substrate 32), the cost can be further reduced and the single-sided substrate is used as the arc-shaped substrate. Even in this case, there is no problem in connecting the coil wire 6 and the like.

また、第１円弧状基板３１には、各相のコイル線６に接続するコモン用パターン３１０が形成され、第２円弧状基板３２には、コイル線６に対して相毎に独立した電位を印加する動力線接続用パターン３２０ｕ、３２０ｖ、３２０ｗが形成されている。すなわち、第１円弧状基板３１および第２円弧状基板３２には、コイル線６の巻始め部分、および巻終わり部分に対応した位置に配置されている。このため、第１円弧状基板３１および第２円弧状基板３２の周方向Ｒの寸法を短くすることができる。それ故、型基板からの取り数を増やすことができるので、配線基板３のコストを低減することができる。しかも、第１円弧状基板３１および第２円弧状基板３２は、同一の外形形状を有しているため、大型基板から効率よく抜くことができる。 The first arc-shaped substrate 31 is formed with a common pattern 310 connected to the coil wire 6 of each phase, and the second arc-shaped substrate 32 has an independent potential for each phase with respect to the coil wire 6. Power line connection patterns 320u, 320v, and 320w to be applied are formed. That is, the first arc-shaped substrate 31 and the second arc-shaped substrate 32 are arranged at positions corresponding to the winding start portion and the winding end portion of the coil wire 6. For this reason, the dimension of the circumferential direction R of the 1st circular arc-shaped board | substrate 31 and the 2nd circular arc-shaped board | substrate 32 can be shortened. Therefore, since the number of mold substrates can be increased, the cost of the wiring board 3 can be reduced. Moreover, since the first arc-shaped substrate 31 and the second arc-shaped substrate 32 have the same outer shape, they can be efficiently removed from the large-sized substrate.

また、第１円弧状基板３１および第２円弧状基板３２には、コイル線６を通す第１切り欠き３１２ａ、３２２ａ、第２切り欠き３１２ｂ、３２２ｂ、および第３切り欠き３１２ｃ、３２２ｃがコイル線支持部として形成されているが、線対称である。このため、第１円弧状基板３１および第２円弧状基板３２を配置した際、第１切り欠き３１２ａ、３２２ａ、第２切り欠き３１２ｂ、３２２ｂ、および第３切り欠き３１２ｃ、３２２ｃ（コイル線支持部）とコイル線６の位置関係によって、第１円弧状基板３１および第２円弧状基板３２を適切な位置に配置したか否かを判別することができる。それ故、第１円弧状基板３１および第２円弧状基板３２が同一形状あるいは類似形状であっても、第１円弧状基板３１および第２円弧状基板３２が入れ替わって配置されることを防止することができる。 Further, the first arc-shaped substrate 31 and the second arc-shaped substrate 32 are provided with first cutouts 312a and 322a, second cutouts 312b and 322b, and third cutouts 312c and 322c through which the coil wire 6 passes. Although formed as a support, it is line symmetric. Therefore, when the first arc-shaped substrate 31 and the second arc-shaped substrate 32 are arranged, the first notches 312a and 322a, the second notches 312b and 322b, and the third notches 312c and 322c (coil wire support portions) ) And the coil wire 6, it can be determined whether or not the first arc-shaped substrate 31 and the second arc-shaped substrate 32 are arranged at appropriate positions. Therefore, even if the first arc-shaped substrate 31 and the second arc-shaped substrate 32 have the same shape or similar shapes, the first arc-shaped substrate 31 and the second arc-shaped substrate 32 are prevented from being exchanged. be able to.

（他の実施の形態）
上記実施の形態では、凸部８４１が嵌る係合部として第１切り欠き３１１ａ、３２１ａ、第２切り欠き３１１ｂ、３２１ｂ、および第３切り欠き３１１ｃ、３２１ｃを形成したが、凸部８４１が嵌る係合部として貫通孔を形成してもよい。 (Other embodiments)
In the above embodiment, the first cutouts 311a and 321a, the second cutouts 311b and 321b, and the third cutouts 311c and 321c are formed as the engaging portions into which the convex portions 841 are fitted. A through hole may be formed as a joint.

上記実施の形態では、コイル線６を支持するコイル線支持部として、第１切り欠き３１２ａ、３２２ａ、第２切り欠き３１２ｂ、３２２ｂ、および第３切り欠き３１２ｃ、３２２ｃを形成したが、コイル線６を支持するコイル線支持部として貫通孔を形成してもよい。 In the above embodiment, the first cutouts 312a and 322a, the second cutouts 312b and 322b, and the third cutouts 312c and 322c are formed as the coil wire support portions that support the coil wire 6. You may form a through-hole as a coil wire support part which supports this.

上記実施の形態では、第１円弧状基板３１の一方面にコモン用パターン３１０が形成され、第２円弧状基板３２の一方面に動力線接続用パターン３２０ｕ、３２０ｖ、３２０ｗが形成されていたが、第１円弧状基板３１および第２円弧状基板３２として、一方面にコモン用パターン３１０が形成され、他方面に動力線接続用パターン３２０ｕ、３２０ｖ、３２０ｗが形成された共用の円弧状基板を用いてもよい。かかる構成によれば、２枚の共用の円弧状基板を各々、表裏反転させて用い、２枚の共用の円弧状基板のうち、一方面を反出力側Ｌ２に向けた円弧状基板を第１円弧状基板３１として用い、他方面を反出力側Ｌ２に向けた円弧状基板を第２円弧状基板３２として用いてもよい。かかる構成によれば、第１円弧状基板３１および第２円弧状基板３２を異なる構成の基板として準備する必要がないので、部品コストの低減を図ることができる。 In the above embodiment, the common pattern 310 is formed on one surface of the first arc-shaped substrate 31, and the power line connection patterns 320u, 320v, and 320w are formed on one surface of the second arc-shaped substrate 32. As the first arc-shaped substrate 31 and the second arc-shaped substrate 32, common arc-shaped substrates in which the common pattern 310 is formed on one surface and the power line connection patterns 320u, 320v, and 320w are formed on the other surface are used. It may be used. According to such a configuration, the two shared arc-shaped substrates are respectively turned upside down, and the arc-shaped substrate with one surface facing the counter-output side L2 out of the two shared arc-shaped substrates is first. An arc-shaped substrate that is used as the arc-shaped substrate 31 and whose other surface faces the opposite output side L <b> 2 may be used as the second arc-shaped substrate 32. According to such a configuration, it is not necessary to prepare the first arc-shaped substrate 31 and the second arc-shaped substrate 32 as substrates having different configurations, so that the component cost can be reduced.

１モータ
３配線基板
４ステータ
６コイル線
８絶縁部材
３１第１円弧状基板
３２第２円弧状基板
６０渡り線部分
６０ａ渡り線部分
８２胴部
８４第１鍔部（壁部）
８５第２鍔部（隔壁）
８６引き回し部
８７対向壁
８７０対向壁の切り欠き
３１１ａ〜３１１ｃ、３２１ａ〜３２１ｃ切り欠き（係合部）
３１２ａ〜３１２ｃ、３２２ａ〜３２２ｃ切り欠き（コイル線支持部）
３１０コモン用パターン
３２０ｕ、３２０ｖ、３２０ｗ動力線接続用パターン
８４１第１鍔部の凸部
８４９第１鍔部の肉厚部分
８５０第２鍔部の凹部 DESCRIPTION OF SYMBOLS 1 Motor 3 Wiring board 4 Stator 6 Coil wire 8 Insulating member 31 1st arc-shaped board 32 2nd arc-shaped board 60 Junction part 60a Junction part 82 Body part 84 First collar part (wall part)
85 Second collar (partition wall)
86 Leading-out part 87 Opposite wall 870 Notch 311a-311c of opposing wall, 321a-321c Notch (engagement part)
312a-312c, 322a-322c Notch (coil wire support)
310 Common pattern 320u, 320v, 320w Power line connection pattern 841 First flange convex portion 849 First collar thick portion 850 Second collar concave portion

Claims

A stator core having a plurality of salient poles in the circumferential direction, an insulating member having a trunk portion covering the salient poles, a coil wire wound around the salient pole via the trunk portion, and the insulating member A wiring board disposed on one side in the axial direction with respect to the end of the coil wire, and a stator having a wiring board,
The insulating member includes a first flange portion provided at one end portion of the trunk portion, and a second flange portion provided at the other end portion of the trunk portion,
A convex portion protruding in the axial direction from the end portion is formed at one end portion in the axial direction of the first flange portion,
The stator is characterized in that the wiring board is formed with an engaging portion including a notch or a through hole in which the convex portion fits inside.

The stator according to claim 1, wherein the convex portion is located on the outer side in the circumferential direction from the body portion.

A plurality of the insulating members are arranged in the circumferential direction,
The wiring board extends over an angular range for a plurality of the body portions in the circumferential direction,
The engagement portion includes an engagement portion into which the two convex portions formed on each of the two first flange portions adjacent in the circumferential direction are fitted. The stator described.

The first flange portion includes a thick portion having a greater radial thickness than a portion adjacent in the circumferential direction in the first flange portion,
The stator according to any one of claims 1 to 3, wherein the convex portion is formed in the thick portion.

The stator according to claim 1, wherein the convex portion has a cylindrical shape.

The stator according to any one of claims 1 to 5, wherein a retaining portion for preventing the wiring substrate from coming off is provided on a tip side of the convex portion from the wiring substrate.

The stator according to claim 6, wherein the retaining portion includes a portion where a tip portion of the convex portion is crushed.

The stator according to any one of claims 1 to 7, wherein the engaging portion includes a notch that opens toward one side in a radial direction.

The stator according to any one of claims 1 to 8, wherein the wiring substrate is formed of an arc-shaped substrate extending with an arc angle of less than 180 °.

The first brim part is an inner circumferential side collar part provided at an inner circumferential side end part of the trunk part,
The stator according to any one of claims 1 to 9, wherein the second flange portion is an outer periphery flange portion provided at an outer peripheral end portion of the body portion.

A motor comprising the stator as defined in any one of claims 1 to 10,
A motor having a rotor opposed to the end of the salient pole in the radial direction.