JP2014131429A

JP2014131429A - Wire connection structure, rotary machine, electric vehicle, and wire connecting method

Info

Publication number: JP2014131429A
Application number: JP2012288472A
Authority: JP
Inventors: Hiroaki Asakura; 裕明朝倉; Akira Uno; 公宇野; Akihiro Kawabata; 昭広川端
Original assignee: Top KK
Current assignee: Top KK
Priority date: 2012-12-28
Filing date: 2012-12-28
Publication date: 2014-07-10
Anticipated expiration: 2032-12-28
Also published as: JP6001447B2

Abstract

PROBLEM TO BE SOLVED: To provide a wire connection structure capable of suitably connecting end portions of conducting wires forming a coil provided on a stator of a rotary machine, a rotary machine including the wire connection structure, an electric vehicle equipped with the rotary machine, and a wire connecting method.SOLUTION: A first lead-out line portion of a first coil and a second lead-out line portion of a second coil are connected by using a terminal. The terminal is equipped with a first holding portion formed with a first groove portion, and a second holding portion formed with a second groove portion. The first holding portion holds the first lead-out line portion and the second lead-out line portion installed in the first groove portion. The second holding portion separates from the first holding portion by a predetermined distance, and holds the first lead-out line portion and the second lead-out line portion installed in the second groove portion. The first lead-out line portion and the second lead-out line portions are installed in the first groove portion in an order of the first lead-out line portion and the second lead-out line portion in a reference direction from a bottom side toward an opening side of the first groove portion, installed in second groove portion in an order of the second lead-out line portion and the first lead-out line portion in a direction from a bottom side toward an opening side of the second groove portion corresponding to the reference direction, and intersect between the first holding portion and the second holding portion.

Description

本発明は、モータ又は発電機のような回転機のステータが備えるコイルを形成する導線の結線構造、結線構造を含む回転機、回転機を備える電動車両及び結線方法に関する。 The present invention relates to a wire connection structure forming a coil included in a stator of a rotating machine such as a motor or a generator, a rotating machine including the connecting structure, an electric vehicle including the rotating machine, and a connecting method.

結線構造に関する技術が提案されている。例えば、特許文献１には、ターミナルとコイルとの結線構造が開示されている。結線構造は、金属板製のターミナルに設けられた結線部に、電機子に備えられたコイルの接続端部が結線される。ターミナルは、帯状のターミナル本体部を備える。結線部は、互いに対向する一対のコイル接続部が形成されるようにターミナル本体部の一部を折り返した形状をなす。結線部は、一対のコイル接続部のうち一方のコイル接続部におけるターミナル本体部の幅方向の片側端部に一体に設けられ結線部の開口部を横断するように一方のコイル接続部から少なくとも他方のコイル接続部まで延びる規制部を備える。結線部内に接続端部が配置され、規制部が設けられた側の結線部の端部で溶融溶接される。 Techniques related to connection structures have been proposed. For example, Patent Document 1 discloses a connection structure between a terminal and a coil. In the connection structure, a connection end portion of a coil provided in the armature is connected to a connection portion provided in a terminal made of a metal plate. The terminal includes a belt-like terminal body. The connection portion has a shape in which a part of the terminal body portion is folded back so that a pair of coil connection portions facing each other is formed. The connection portion is provided integrally with one end portion in the width direction of the terminal main body portion in one coil connection portion of the pair of coil connection portions, and at least the other from one coil connection portion so as to cross the opening of the connection portion. A restricting portion extending to the coil connecting portion. A connection end is disposed in the connection part, and fusion welding is performed at the end of the connection part on the side where the restriction part is provided.

特開２００９−１５９７８２号公報JP 2009-159882 A

モータ又は発電機のような回転機は、家庭用又は産業用の電気製品の他、電動車両等にも搭載される。このような回転機では、回転機のステータにおいて各コイルを形成する導線の端部に連続して繋がる引出線部を端子に預け、その後、端子をかしめ、導線の端部同士を接続（結線）する場合がある。端子のかしめは、ヒュージングによって行われることもある。ヒュージングは、端子に対して通電し、端子をかしめる接合方法である。導線の端部が端子に預けられたかしめ前の状態で、例えば、導線の端部が端子から浮き上がると、かしめを好適に行うことができず、好適な結線を実現することができなくなる場合がある。好適な結線が実現されていないステータを備えるモータ又は発電機では、信頼性等が低下する場合もある。 A rotating machine such as a motor or a generator is mounted on an electric vehicle or the like in addition to household or industrial electric products. In such a rotating machine, in the stator of the rotating machine, the lead wire part continuously connected to the end part of the conducting wire forming each coil is left in the terminal, and thereafter the terminal is crimped to connect the end parts of the conducting wire (connection). There is a case. The caulking of the terminal may be performed by fusing. Fusing is a joining method in which a terminal is energized and the terminal is caulked. For example, if the end of the conductive wire is lifted from the terminal in a state before the end of the conductive wire is entrusted to the terminal, it may not be possible to perform the caulking properly, and a suitable connection may not be realized. is there. In a motor or a generator including a stator in which a suitable connection is not realized, reliability and the like may be reduced.

本発明は、回転機のステータが備えるコイルを形成する導線の端部同士を好適に接続することができる結線構造、結線構造を含む回転機、回転機を備える電動車両及び結線方法を提供することを目的とする。 The present invention provides a connection structure capable of suitably connecting ends of conductive wires forming a coil included in a stator of a rotating machine, a rotating machine including the connection structure, an electric vehicle including the rotating machine, and a connection method. With the goal.

本発明の一側面は、回転機のステータが備える第一コイルを形成する導線の端部に連続して繋がる第一引出線部と、前記ステータが備える第二コイルを形成する導線の端部に連続して繋がる第二引出線部と、を端子を用いて接続した結線構造であって、前記端子は、前記第一引出線部及び前記第二引出線部が装着される凹状の第一溝部が形成され、前記第一溝部に装着された前記第一引出線部及び前記第二引出線部を保持する第一保持部と、前記第一保持部と所定の距離だけ離間し、前記第一引出線部及び前記第二引出線部が装着される凹状の第二溝部が形成され、前記第二溝部に装着された前記第一引出線部及び前記第二引出線部を保持する第二保持部と、を備え、前記第一引出線部及び前記第二引出線部は、前記第一溝部の底側から開口側に向かう基準方向において、前記第一引出線部及び前記第二引出線部の順で、前記第一溝部に装着され、前記基準方向に対応した前記第二溝部の底側から開口側に向かう方向において、前記第二引出線部及び前記第一引出線部の順で、前記第二溝部に装着され、前記第一保持部及び前記第二保持部の間で交差している、結線構造、である。 One aspect of the present invention is a first lead wire portion that is continuously connected to an end portion of a conducting wire that forms a first coil included in a stator of a rotating machine, and an end portion of a conducting wire that forms a second coil included in the stator. A connection structure in which a second lead wire portion connected continuously is connected using a terminal, and the terminal is a concave first groove portion in which the first lead wire portion and the second lead wire portion are mounted. A first holding part that holds the first lead line part and the second lead line part mounted in the first groove part, and is separated from the first holding part by a predetermined distance, A second holding portion that holds the first and second lead wire portions mounted in the second groove portion is formed with a concave second groove portion to which the lead wire portion and the second lead wire portion are attached. And the first leader line part and the second leader line part are opened from the bottom side of the first groove part. In the reference direction toward the first direction, the first lead line portion and the second lead line portion are attached to the first groove portion in this order, and the direction from the bottom side of the second groove portion corresponding to the reference direction toward the opening side In the connection structure, which is mounted in the second groove portion in the order of the second lead wire portion and the first lead wire portion, and intersects between the first holding portion and the second holding portion. is there.

これによれば、第一引出線部と第二引出線部が好適に接続された結線構造とすることができる。第一引出線部と第二引出線部を接続する際、第一引出線部及び第二引出線部が端子から浮き上がるといった事態の発生を好適に抑制し、スムーズに接続することができる。「回転機」は、モータ又は発電機を含む概念である。 According to this, it can be set as the connection structure in which the 1st leader line part and the 2nd leader line part were connected suitably. When connecting a 1st leader line part and a 2nd leader line part, generation | occurrence | production of the situation that a 1st leader line part and a 2nd leader line part lift from a terminal is suppressed suitably, and it can connect smoothly. “Rotating machine” is a concept including a motor or a generator.

本発明の他の側面は、ロータと、ステータと、を備える回転機であって、前記ステータは、第一コイルと、第二コイルと、前記第一コイルを形成する導線の端部に連続して繋がる第一引出線部と、前記第二コイルを形成する導線の端部に連続して繋がる第二引出線部と、を接続する端子と、を備え、前記端子は、前記第一引出線部及び前記第二引出線部が装着される凹状の第一溝部が形成され、前記第一溝部に装着された前記第一引出線部及び前記第二引出線部を保持する第一保持部と、前記第一保持部と所定の距離だけ離間し、前記第一引出線部及び前記第二引出線部が装着される凹状の第二溝部が形成され、前記第二溝部に装着された前記第一引出線部及び前記第二引出線部を保持する第二保持部と、を備え、前記第一引出線部及び前記第二引出線部は、前記第一溝部の底側から開口側に向かう基準方向において、前記第一引出線部及び前記第二引出線部の順で、前記第一溝部に装着され、前記基準方向に対応した前記第二溝部の底側から開口側に向かう方向において、前記第二引出線部及び前記第一引出線部の順で、前記第二溝部に装着され、前記第一保持部及び前記第二保持部の間で交差している、回転機、である。 Another aspect of the present invention is a rotating machine including a rotor and a stator, wherein the stator is continuous with a first coil, a second coil, and an end of a conductive wire forming the first coil. A first lead wire portion connected to the second lead wire portion connected continuously to an end portion of the conducting wire forming the second coil, and the terminal includes the first lead wire portion. And a first holding portion for holding the first lead wire portion and the second lead wire portion attached to the first groove portion. The first holding portion is separated from the first holding portion by a predetermined distance to form a concave second groove portion to which the first lead wire portion and the second lead wire portion are attached, and the first groove portion is attached to the second groove portion. A second lead portion and a second holding portion for holding the second lead portion, the first lead portion and the second lead portion The two leader lines are attached to the first groove in the reference direction from the bottom side of the first groove to the opening, in the order of the first leader and the second leader, and the reference direction In the direction from the bottom side to the opening side of the second groove part corresponding to the second lead line part and the first lead line part in order, the first holding part and the first holding part and A rotating machine that intersects between the second holding portions.

これによれば、第一引出線部と第二引出線部が好適に接続されたステータを備える回転機とすることができる。第一引出線部と第二引出線部を接続する際、第一引出線部及び第二引出線部が端子から浮き上がるといった事態の発生を好適に抑制し、スムーズに接続することができる。「回転機」については、上記同様である。 According to this, it can be set as a rotary machine provided with the stator to which the 1st leader line part and the 2nd leader line part were connected suitably. When connecting a 1st leader line part and a 2nd leader line part, generation | occurrence | production of the situation that a 1st leader line part and a 2nd leader line part lift from a terminal is suppressed suitably, and it can connect smoothly. The “rotating machine” is the same as described above.

本発明のさらに他の側面は、上記の回転機を備える、電動車両である。これによれば、上述した機能を奏する回転機を備える電動車両を実現することができる。電動車両の信頼性を向上させることができる。 Still another aspect of the present invention is an electric vehicle including the above rotating machine. According to this, an electric vehicle provided with the rotary machine which exhibits the function mentioned above is realizable. The reliability of the electric vehicle can be improved.

本発明のさらに他の側面は、回転機のステータが備える第一コイルを形成する導線の端部に連続して繋がる第一引出線部と、前記ステータが備える第二コイルを形成する導線の端部に連続して繋がる第二引出線部と、が装着される凹状の第一溝部が形成され、前記第一溝部に装着された前記第一引出線部及び前記第二引出線部を保持する第一保持部と、前記第一保持部と所定の距離だけ離間し、前記第一引出線部と、前記第二引出線部と、が装着される凹状の第二溝部が形成され、前記第二溝部に装着された前記第一引出線部及び前記第二引出線部を保持する第二保持部と、を備える端子を用いて、前記第一引出線部と、前記第二引出線部と、を接続する結線方法であって、前記第一溝部の底側から開口側に向かう基準方向において、前記第一引出線部及び前記第二引出線部の順で、前記第一引出線部及び前記第二引出線部を前記第一溝部に装着し、前記基準方向に対応した前記第二溝部の底側から開口側に向かう方向において、前記第二引出線部及び前記第一引出線部の順で、前記第二引出線部及び前記第一引出線部を前記第二溝部に装着する装着工程と、前記第一溝部に前記第一引出線部及び前記第二引出線部が装着された前記第一保持部と、前記第二溝部に前記第二引出線部及び前記第一引出線部が装着された前記第二保持部と、をかしめるかしめ工程と、を含む結線方法、である。 Still another aspect of the present invention provides a first lead wire portion continuously connected to an end portion of a conducting wire forming a first coil provided in a stator of a rotating machine, and an end of a conducting wire forming a second coil provided in the stator. And a second lead wire portion continuously connected to the first portion is formed with a concave first groove portion to hold the first lead wire portion and the second lead wire portion attached to the first groove portion. A first holding part, a second groove part which is spaced apart from the first holding part by a predetermined distance, and into which the first lead line part and the second lead line part are mounted, The first leader line part, the second leader line part, and the second leader part provided with the first leader line part and the second leader part attached to the second groove part, and the second leader part. In the reference direction from the bottom side of the first groove portion toward the opening side, In order of the leader line part and the second leader line part, the first leader line part and the second leader line part are attached to the first groove part, and from the bottom side of the second groove part corresponding to the reference direction. In the direction toward the opening side, in the order of the second leader line part and the first leader line part, an attachment step of attaching the second leader line part and the first leader line part to the second groove part, and The first holding portion in which the first lead wire portion and the second lead wire portion are mounted in the first groove portion, and the second lead wire portion and the first lead wire portion in the second groove portion are mounted. And a caulking step for caulking the second holding part.

これによれば、第一引出線部と第二引出線部を好適に接続することができる。第一引出線部と第二引出線部を接続する際、第一引出線部及び第二引出線部が端子から浮き上がるといった事態の発生を好適に抑制し、スムーズに接続することができる。「回転機」については、上記同様である。 According to this, a 1st leader line part and a 2nd leader line part can be connected suitably. When connecting a 1st leader line part and a 2nd leader line part, generation | occurrence | production of the situation that a 1st leader line part and a 2nd leader line part lift from a terminal is suppressed suitably, and it can connect smoothly. The “rotating machine” is the same as described above.

本発明によれば、回転機のステータが備えるコイルを形成する導線の端部同士を好適に接続することができる結線構造、結線構造を含む回転機、回転機を備える電動車両及び結線方法を得ることができる。 ADVANTAGE OF THE INVENTION According to this invention, the connection structure which can connect suitably the edge parts of the conducting wire which forms the coil with which the stator of a rotary machine is provided, the rotary machine containing a connection structure, the electric vehicle provided with a rotary machine, and the connection method are obtained. be able to.

回転機の一例を示す平面図である。It is a top view which shows an example of a rotary machine. ステータの一例を示す斜視図である。It is a perspective view which shows an example of a stator. ステータコアの一例を示す斜視図である。It is a perspective view which shows an example of a stator core. 結線図の一例である。It is an example of a connection diagram. 結線構造の一例を示す斜視図である。It is a perspective view which shows an example of a connection structure.

本発明を実施するための実施形態について、図面を用いて説明する。本発明は、以下に記載の構成に限定されるものではなく、同一の技術的思想において種々の構成を採用することができる。例えば、以下に示す構成の一部は、省略し又は他の構成等に置換してもよい。他の構成を含むようにしてもよい。 Embodiments for carrying out the present invention will be described with reference to the drawings. The present invention is not limited to the configurations described below, and various configurations can be employed in the same technical idea. For example, some of the configurations shown below may be omitted or replaced with other configurations. Other configurations may be included.

＜回転機＞
回転機１０は、例えば、モータ又は発電機である。モータ又は発電機のような回転機１０は、各種の製品に搭載される。例えば、回転機１０は、電動車両に搭載される。電動車両としては、電気自動車（ハイブリッド自動車を含む）、電動自転車、電動車椅子、電動カート又は電動配膳車が例示される。回転機１０がモータである場合、回転機１０は、例えば、電動車両を移動させるための動力源として利用される。回転機１０は、図１に示すように、ロータ１２と、ステータ２０を備える。本実施形態は、ロータ１２の極数が１４極で、ステータ２０のスロット数が１２個である場合（図１参照）を例に説明する。 <Rotating machine>
The rotating machine 10 is, for example, a motor or a generator. A rotating machine 10 such as a motor or a generator is mounted on various products. For example, the rotating machine 10 is mounted on an electric vehicle. Examples of the electric vehicle include an electric vehicle (including a hybrid vehicle), an electric bicycle, an electric wheelchair, an electric cart, and an electric trolley. When the rotating machine 10 is a motor, the rotating machine 10 is used as a power source for moving an electric vehicle, for example. As shown in FIG. 1, the rotating machine 10 includes a rotor 12 and a stator 20. In the present embodiment, a case where the number of poles of the rotor 12 is 14 and the number of slots of the stator 20 is 12 (see FIG. 1) will be described as an example.

ロータ１２は、ロータコア１４と、１４個の永久磁石１６と、シャフト１８を備える。ロータコア１４は、例えば、プレス機によって電磁鋼板を打ち抜きつつ積層して形成される。ロータコア１４には、１４個の永久磁石１６をそれぞれ収納するための空間と、シャフト１８を固定するための貫通孔が形成される。このような空間及び貫通孔は、電磁鋼板が積層された方向に延在する。永久磁石１６は、前述した空間に収納された状態で、ロータコア１４の内部に設けられる。回転機１０がモータである場合、このようなロータ１２を備えるモータは、ＩＰＭ（Interior Permanent Magnet）モータと称される。 The rotor 12 includes a rotor core 14, 14 permanent magnets 16, and a shaft 18. The rotor core 14 is formed, for example, by laminating electromagnetic steel sheets with a press machine. The rotor core 14 is formed with a space for accommodating the 14 permanent magnets 16 and a through hole for fixing the shaft 18. Such spaces and through-holes extend in the direction in which the electromagnetic steel sheets are laminated. The permanent magnet 16 is provided inside the rotor core 14 while being accommodated in the space described above. When the rotating machine 10 is a motor, the motor including such a rotor 12 is referred to as an IPM (Interior Permanent Magnet) motor.

シャフト１８は、ロータコア１４の中心部に形成された貫通孔に固定される。シャフト１８には、ロータコア１４の両側に軸受（不図示）が取り付けられる。軸受は、ステータ２０に設けられた支持部（不図示）に支持される。シャフト１８は回転軸となり、ロータ１２は、シャフト１８を回転中心として回転（図１でシャフト１８の近傍に示す「矢印」参照）する。ロータ１２は、既に実用化されたモータ又は発電機が備えるロータと同様である。従って、ロータ１２に関するこの他の説明は、省略する。 The shaft 18 is fixed to a through hole formed at the center of the rotor core 14. Bearings (not shown) are attached to the shaft 18 on both sides of the rotor core 14. The bearing is supported by a support portion (not shown) provided in the stator 20. The shaft 18 serves as a rotation axis, and the rotor 12 rotates about the shaft 18 (see “arrow” shown in the vicinity of the shaft 18 in FIG. 1). The rotor 12 is the same as the rotor provided in a motor or generator that has already been put into practical use. Therefore, the other description regarding the rotor 12 is abbreviate | omitted.

ステータ２０は、樹脂モールドされる。ステータ２０は、図１及び図２に示すように、ステータコア２１と、コイル３０と、端子５０Ｕ，５０Ｖ，５０Ｗと、モールド部６０を備える。図１では、モールド部６０の図示を省略し、複数のティース部２３に巻線された複数のコイル３０を図示した状態としている。また、図１では、端子５０Ｕ，５０Ｖ，５０Ｗの図示を省略している。図２では、積層された電磁鋼板の積層に関する図示を省略している（図３についても同じ）。ステータコア２１は、図３に示すように、複数のティース部２３と、ヨーク部２５を備える。ステータ２０のスロット数を１２個とする本実施形態では、ティース部２３の数は、１２個である。１２個のティース部２３は、ヨーク部２５からロータ１２（シャフト１８）の側に突出する。 The stator 20 is resin molded. As shown in FIGS. 1 and 2, the stator 20 includes a stator core 21, a coil 30, terminals 50 </ b> U, 50 </ b> V, 50 </ b> W, and a mold part 60. In FIG. 1, illustration of the mold part 60 is omitted, and a plurality of coils 30 wound around the plurality of tooth parts 23 are illustrated. In FIG. 1, the terminals 50U, 50V, and 50W are not shown. In FIG. 2, illustration regarding lamination | stacking of the laminated | stacked electromagnetic steel sheet is abbreviate | omitted (same also about FIG. 3). As shown in FIG. 3, the stator core 21 includes a plurality of tooth portions 23 and a yoke portion 25. In the present embodiment in which the number of slots of the stator 20 is twelve, the number of teeth portions 23 is twelve. The twelve teeth portions 23 protrude from the yoke portion 25 toward the rotor 12 (shaft 18).

ステータコア２１は、図３に示すように、複数のステータコアセグメント（以下、「セグメント」という）２２を環状に配置して形成される。本実施形態では、１個のセグメント２２におけるティース部２３の数を１個としているため、ステータコア２１は、１２個のセグメント２２を環状に配置して形成される。 As shown in FIG. 3, the stator core 21 is formed by arranging a plurality of stator core segments (hereinafter referred to as “segments”) 22 in an annular shape. In the present embodiment, since the number of the tooth portions 23 in one segment 22 is one, the stator core 21 is formed by arranging twelve segments 22 in an annular shape.

セグメント２２は、図３に示すように、ティース部２３と、ヨーク部分２５１によって形成される。ヨーク部分２５１は、環状のヨーク部２５の一部を形成する部分である。セグメント２２を環状に配置した状態で隣り合う２個のティース部２３の間には、スロット部２６が形成される。セグメント２２は、例えば、プレス機によって電磁鋼板を、図３に示すような形状に打ち抜きつつ積層して形成される。 As shown in FIG. 3, the segment 22 is formed by a tooth portion 23 and a yoke portion 251. The yoke portion 251 is a portion that forms a part of the annular yoke portion 25. A slot portion 26 is formed between two adjacent tooth portions 23 with the segments 22 arranged in an annular shape. The segment 22 is formed by, for example, laminating electromagnetic steel sheets into a shape as shown in FIG.

ティース部２３において、ロータ１２と対向する面は、第一対向面２３１と、第二対向面２３２を含む。第一対向面２３１は、所定の曲率半径の面であり、ロータ１２とのエアギャップが第一距離となる面である。第二対向面２３２は、エアギャップが第一距離より広い第二距離（第二距離＞第一距離）となる面である。ティース部２３は、図３に示すように、第二対向面２３２にティース溝部２４を備える。 In the tooth portion 23, the surface facing the rotor 12 includes a first facing surface 231 and a second facing surface 232. The first facing surface 231 is a surface having a predetermined radius of curvature, and is a surface where an air gap with the rotor 12 becomes a first distance. The second facing surface 232 is a surface where the air gap is a second distance (second distance> first distance) wider than the first distance. As shown in FIG. 3, the tooth portion 23 includes a tooth groove portion 24 on the second facing surface 232.

コイル３０は、ティース部２３に導線を集中巻して形成される。コイル３０の形成には、所定の巻線機が用いられる。巻線機によるコイル３０の形成（巻線）は、環状とされる前のセグメント２２のそれぞれを対象として、対象のセグメント２２のティース部２３に導線を巻回して行われる。巻線に際し、セグメント２２には、インシュレータ３４が装着される（図１参照）。インシュレータ３４によって、セグメント２２（ステータコア２１）と、コイル３０の間の絶縁を確保することができる。 The coil 30 is formed by concentrating a conductive wire around the tooth portion 23. A predetermined winding machine is used to form the coil 30. The formation (winding) of the coil 30 by the winding machine is performed by winding a conducting wire around the tooth portion 23 of the target segment 22 for each of the segments 22 before being formed into an annular shape. At the time of winding, an insulator 34 is attached to the segment 22 (see FIG. 1). The insulator 34 can ensure insulation between the segment 22 (stator core 21) and the coil 30.

ステータコア２１を分割された複数のセグメント２２によって形成する技術と、ティース部２３にコイル３０を形成する技術は、既に実用化された技術を採用することができる。従って、これらに関するこの他の説明は、省略する。 As a technique for forming the stator core 21 by the plurality of divided segments 22 and a technique for forming the coil 30 in the tooth portion 23, a technique that has already been put into practical use can be adopted. Therefore, the other description regarding these is abbreviate | omitted.

ステータ２０が備える１２個のコイル３０は、Ｕ相、Ｖ相及びＷ相の何れかのコイル３０にそれぞれ分類され、図４に示すように、スター結線される。１２個のコイル３０のうち、所定の４個のコイルＵ１，Ｕ２，Ｕ３，Ｕ４は、Ｕ相の連結コイル３２Ｕを形成する。１２個のコイル３０のうち、他の４個のコイルＶ１，Ｖ２，Ｖ３，Ｖ４は、Ｖ相の連結コイル３２Ｖを形成する。１２個のコイル３０のうち、さらに他の４個のコイルＷ１，Ｗ２，Ｗ３，Ｗ４は、Ｗ相の連結コイル３２Ｗを形成する。 The twelve coils 30 included in the stator 20 are classified into U-phase, V-phase, and W-phase coils 30, respectively, and are star-connected as shown in FIG. Of the twelve coils 30, four predetermined coils U1, U2, U3, U4 form a U-phase coupling coil 32U. Of the twelve coils 30, the other four coils V1, V2, V3, V4 form a V-phase coupling coil 32V. Of the twelve coils 30, the other four coils W1, W2, W3, and W4 form a W-phase coupling coil 32W.

連結コイル３２Ｕを形成する場合、図４に示す「ＪＵ」部での第一引出線部４１Ｕと第二引出線部４２Ｕの接続（結線）には、端子５０Ｕ（全体構成については、図５参照端子５０Ｖ，５０Ｗについて同じ）が用いられる。連結コイル３２Ｖを形成する場合、図４に示す「ＪＶ」部での第一引出線部４１Ｖと第二引出線部４２Ｖの接続（結線）には、端子５０Ｖが用いられる。連結コイル３２Ｗを形成する場合、図４に示す「ＪＷ」部での第一引出線部４１Ｗと第二引出線部４２Ｗの接続（結線）には、端子５０Ｗが用いられる。第一引出線部４１Ｕは、端子５０Ｕの側においてコイルＵ１を形成する導線の端部に連続して繋がる導線である。第二引出線部４２Ｕは、端子５０Ｕの側においてコイルＵ２を形成する導線の端部に連続して繋がる導線である。第一引出線部４１Ｖは、端子５０Ｖの側においてコイルＶ１を形成する導線の端部に連続して繋がる導線である。第二引出線部４２Ｖは、端子５０Ｖの側においてコイルＶ２を形成する導線の端部に連続して繋がる導線である。第一引出線部４１Ｗは、端子５０Ｗの側においてコイルＷ１を形成する導線の端部に連続して繋がる導線である。第二引出線部４２Ｗは、端子５０Ｗの側においてコイルＷ２を形成する導線の端部に連続して繋がる導線である。 When the connecting coil 32U is formed, a terminal 50U (see FIG. 5 for the entire configuration) is used for connection (connection) between the first lead wire portion 41U and the second lead wire portion 42U in the “JU” portion shown in FIG. The same applies to terminals 50V and 50W. When the connecting coil 32V is formed, the terminal 50V is used for connection (connection) between the first lead wire portion 41V and the second lead wire portion 42V in the “JV” portion shown in FIG. When the connection coil 32W is formed, the terminal 50W is used for connection (connection) between the first lead wire portion 41W and the second lead wire portion 42W in the “JW” portion shown in FIG. The first lead wire portion 41U is a lead wire continuously connected to the end portion of the lead wire forming the coil U1 on the terminal 50U side. The second lead wire portion 42U is a lead wire continuously connected to the end portion of the lead wire forming the coil U2 on the terminal 50U side. The first lead wire portion 41V is a lead wire continuously connected to the end portion of the lead wire forming the coil V1 on the terminal 50V side. The second lead wire portion 42V is a lead wire continuously connected to the end portion of the lead wire forming the coil V2 on the terminal 50V side. The first lead wire portion 41W is a lead wire continuously connected to the end portion of the lead wire forming the coil W1 on the terminal 50W side. The second lead wire portion 42W is a lead wire continuously connected to the end portion of the lead wire forming the coil W2 on the terminal 50W side.

本実施形態では、第一引出線部４１Ｕ，４１Ｖ，４１Ｗを区別せず、又は、これらを総称する場合、「第一引出線部４１」といい、第二引出線部４２Ｕ，４２Ｖ，４２Ｗを区別せず、又は、これらを総称する場合、「第二引出線部４２」という。端子５０Ｕ，５０Ｖ，５０Ｗを区別せず、又は、これらを総称する場合、「端子５０」という。 In the present embodiment, the first leader lines 41U, 41V, 41W are not distinguished or are collectively referred to as “first leader lines 41”, and the second leader lines 42U, 42V, 42W are referred to as “first leader lines 41U”. When these are not distinguished or are collectively referred to, they are referred to as “second leader portion 42”. When the terminals 50U, 50V, and 50W are not distinguished or are collectively referred to as “terminal 50”.

端子５０と、端子５０を用いた第一引出線部４１と第二引出線部４２の接続について、図５を参照して説明する。端子５０Ｕを用いた第一引出線部４１Ｕ及び第二引出線部４２Ｕの接続と、端子５０Ｖを用いた第一引出線部４１Ｖ及び第二引出線部４２Ｖの接続と、端子５０Ｗを用いた第一引出線部４１Ｗ及び第二引出線部４２Ｗの接続は、何れも図５に示すようにして行われる。 The connection between the terminal 50 and the first lead wire portion 41 and the second lead wire portion 42 using the terminal 50 will be described with reference to FIG. The connection of the first lead wire portion 41U and the second lead wire portion 42U using the terminal 50U, the connection of the first lead wire portion 41V and the second lead wire portion 42V using the terminal 50V, and the first connection using the terminal 50W. The connection between the one lead wire portion 41W and the second lead wire portion 42W is performed as shown in FIG.

端子５０は、外部接続部５２と、基部５４と、第一保持部５６と、第二保持部５８を含み、これらが一体となって形成される。端子５０は、公知の端子と同様、電気導電材によって形成される。外部接続部５２は、端子５０と対をなすリード線に設けられた端子が接続される部分である。リード線は、端子５０と対をなす端子が設けられた端部とは反対側の端部において外部デバイスに繋がる。外部デバイスとしては、電源、バッテリ又は所定の電気回路が例示される。回転機１０がモータである場合、電源からの電力は、リード線及び外部接続部５２を介してステータ２０に入力される。回転機１０が発電機である場合、回転機１０で発電された電力は、外部接続部５２及びリード線を介してバッテリに充電され、又は、電気回路に供給される。端子５０Ｕ，５０Ｖ，５０Ｗの各外部接続部５２Ｕ，５２Ｖ，５２Ｗは、モールド部６０から露出した状態で、ステータ２０に設けられる（図２参照）。本実施形態において、「外部接続部５２」は、端子５０Ｕ，５０Ｖ，５０Ｗのそれぞれにおける外部接続部５２Ｕ，５２Ｖ，５２Ｗを、区別せず、又は、総称するものである。 The terminal 50 includes an external connection portion 52, a base portion 54, a first holding portion 56, and a second holding portion 58, which are integrally formed. The terminal 50 is formed of an electrically conductive material in the same manner as a known terminal. The external connection portion 52 is a portion to which a terminal provided on a lead wire that makes a pair with the terminal 50 is connected. The lead wire is connected to an external device at the end opposite to the end provided with the terminal 50 that is paired with the terminal 50. Examples of the external device include a power source, a battery, and a predetermined electric circuit. When the rotating machine 10 is a motor, power from the power source is input to the stator 20 via the lead wire and the external connection portion 52. When the rotating machine 10 is a generator, the electric power generated by the rotating machine 10 is charged to the battery or supplied to the electric circuit via the external connection unit 52 and the lead wire. The external connection portions 52U, 52V, and 52W of the terminals 50U, 50V, and 50W are provided on the stator 20 while being exposed from the mold portion 60 (see FIG. 2). In the present embodiment, the “external connection portion 52” refers to the external connection portions 52U, 52V, and 52W in the terminals 50U, 50V, and 50W, respectively, without distinguishing or generically.

基部５４は、外部接続部５２に連続し、第一保持部５６と第二保持部５８と一体をなす。第一保持部５６は、図５に示すように、基部５４の一方側の端部（図５に示す「第三側」参照）で、基部５４に対して直交する方向に起立した状態で形成される。第二保持部５８は、図５に示すように、基部５４の他方側の端部（図５に示す「第四側」参照）で、基部５４に対して第一保持部５６と同一方向に起立した状態で形成される。 The base portion 54 is continuous with the external connection portion 52 and is integrated with the first holding portion 56 and the second holding portion 58. As shown in FIG. 5, the first holding portion 56 is formed in an upright state in a direction orthogonal to the base portion 54 at one end portion of the base portion 54 (see “third side” shown in FIG. 5). Is done. As shown in FIG. 5, the second holding portion 58 is the other end portion of the base portion 54 (see “fourth side” shown in FIG. 5), and is in the same direction as the first holding portion 56 with respect to the base portion 54. It is formed in a standing state.

本実施形態では、基部５４に直交し、第一保持部５６及び第二保持部５８が起立する方向を、「基準方向」という。基準方向の一方側を「第一側」といい、他方側を「第二側」という。ステータ２０において、端子５０は、ステータコア２１の第一端面２１１の側に設けられる。例えば、端子５０は、セグメント２２に装着された第一端面２１１の側のインシュレータ３４上の所定の位置に設けられる。その際、端子５０は、基準方向が積層方向に一致し、基準方向の第一側が、積層方向の一方側となり、基準方向の第二側が、積層方向の他方側となるようにされる。積層方向は、セグメント２２（ステータコア２１）において、電磁鋼板が積層された方向である。積層方向の一方側は、ステータコア２１の第一端面２１１の側であり、積層方向の他方側は、ステータコア２１の第二端面（不図示）の側である。ステータコア２１の第二端面は、積層方向において、第一端面２１１とは反対側のステータコア２１の端面である。 In this embodiment, the direction in which the first holding part 56 and the second holding part 58 stand up perpendicular to the base part 54 is referred to as “reference direction”. One side of the reference direction is referred to as “first side”, and the other side is referred to as “second side”. In the stator 20, the terminal 50 is provided on the first end surface 211 side of the stator core 21. For example, the terminal 50 is provided at a predetermined position on the insulator 34 on the first end surface 211 side attached to the segment 22. At that time, the terminal 50 is configured such that the reference direction coincides with the stacking direction, the first side of the reference direction is one side of the stacking direction, and the second side of the reference direction is the other side of the stacking direction. The stacking direction is the direction in which the electromagnetic steel plates are stacked in the segment 22 (stator core 21). One side in the stacking direction is the first end surface 211 side of the stator core 21, and the other side in the stacking direction is the second end surface (not shown) of the stator core 21. The second end surface of the stator core 21 is the end surface of the stator core 21 opposite to the first end surface 211 in the stacking direction.

第一保持部５６には、第一溝部５７が形成される。第一溝部５７は、基準方向において、第一保持部５６の第一側の端部が開口し、所定の位置まで基準方向に延在する。第一溝部５７の深さＬＡは、例えば、第一引出線部４１及び第二引出線部４２の直径φＤ（コイル３０を形成する導線の直径）の２倍より大きく設定される。第一溝部５７の幅ＷＡは、第一引出線部４１及び第二引出線部４２の直径φＤに対応した寸法に設定される。 A first groove portion 57 is formed in the first holding portion 56. In the reference direction, the first groove portion 57 is open at the first end of the first holding portion 56 and extends in the reference direction to a predetermined position. For example, the depth LA of the first groove portion 57 is set to be larger than twice the diameter φD (the diameter of the conducting wire forming the coil 30) of the first lead wire portion 41 and the second lead wire portion 42. The width WA of the first groove portion 57 is set to a dimension corresponding to the diameter φD of the first lead wire portion 41 and the second lead wire portion 42.

第二保持部５８には、第二溝部５９が形成される。第二溝部５９は、基準方向において、第二保持部５８の第一側の端部が開口し、所定の位置まで基準方向に延在する。第二溝部５９の深さＬＢ及び第二溝部５９の幅ＷＢと、第一引出線部４１及び第二引出線部４２の直径φＤの関係は、第一溝部５７の深さＬＡ及び第一溝部５７の幅ＷＡの場合と同様である。 A second groove portion 59 is formed in the second holding portion 58. The second groove portion 59 is open at the first end of the second holding portion 58 in the reference direction and extends in the reference direction to a predetermined position. The relationship between the depth LB of the second groove portion 59 and the width WB of the second groove portion 59 and the diameter φD of the first lead wire portion 41 and the second lead wire portion 42 is the depth LA of the first groove portion 57 and the first groove portion. This is the same as the case of 57 width WA.

第一溝部５７には、第一引出線部４１及び第二引出線部４２が基準方向に重なり合った状態で装着される。第二溝部５９には、第一引出線部４１及び第二引出線部４２が基準方向に重なり合った状態で装着される。第一溝部５７及び第二溝部５９への第一引出線部４１及び第二引出線部４２の装着は、第一溝部５７及び第二溝部５９のそれぞれで、第一引出線部４１及び第二引出線部４２の重なり順が反転するようにして行われる。 The first leader portion 41 and the second leader portion 42 are attached to the first groove portion 57 so as to overlap in the reference direction. The first lead wire portion 41 and the second lead wire portion 42 are attached to the second groove portion 59 so as to overlap in the reference direction. The first lead wire portion 41 and the second lead wire portion 42 are attached to the first groove portion 57 and the second groove portion 59 in the first groove portion 57 and the second groove portion 59, respectively. This is performed so that the overlapping order of the leader lines 42 is reversed.

例えば、第一引出線部４１及び第二引出線部４２の重なりは、図５に示すように、第一溝部５７では、第一引出線部４１が第一溝部５７の底側となる基準方向の第二側で、第二引出線部４２が第一溝部５７の開口側となる基準方向の第一側となり、第二溝部５９では、第二引出線部４２が第二溝部５９の底側となる基準方向の第二側で、第一引出線部４１が第二溝部５９の開口側となる基準方向の第二側となる。第一引出線部４１及び第二引出線部４２は、離間する第一保持部５６及び第二保持部５８の間で、交差する。 For example, as shown in FIG. 5, the overlap between the first leader line portion 41 and the second leader line portion 42 is the reference direction in which the first leader line portion 41 is the bottom side of the first groove portion 57 in the first groove portion 57. The second leader line portion 42 is the first side in the reference direction, which is the opening side of the first groove portion 57. In the second groove portion 59, the second leader line portion 42 is the bottom side of the second groove portion 59. On the second side in the reference direction, the first lead line portion 41 becomes the second side in the reference direction that is the opening side of the second groove portion 59. The first leader line part 41 and the second leader line part 42 intersect between the first holding part 56 and the second holding part 58 that are separated from each other.

第一保持部５６は、上述したような状態で、第一溝部５７に装着された第一引出線部４１及び第二引出線部４２を保持する。第二保持部５８は、上述したような状態で、第二溝部５９に装着された第二引出線部４２及び第一引出線部４１を保持する。 The first holding portion 56 holds the first lead wire portion 41 and the second lead wire portion 42 attached to the first groove portion 57 in the state as described above. The 2nd holding | maintenance part 58 hold | maintains the 2nd leader line part 42 and the 1st leader line part 41 with which the 2nd groove part 59 was mounted | worn in the state as mentioned above.

各相の連結コイル３２Ｕ，３２Ｖ，３２Ｗの接続に関し、中性点側の接続（図４に示す２個の「黒丸」参照）は、既に実用化された回転機のステータと同様の構成及び方法によって行われる。例えば、中性点側の接続は、所定の圧着端子を用いて、又は、はんだ付け等によって行われる。中性点側の接続に関するこの他の説明は、省略する。 Regarding the connection of the coupling coils 32U, 32V, 32W of each phase, the connection on the neutral point side (see the two “black circles” shown in FIG. 4) has the same configuration and method as the stator of the rotating machine already put into practical use. Is done by. For example, the neutral point side connection is performed using a predetermined crimp terminal or by soldering. The other description regarding the connection on the neutral point side is omitted.

モールド部６０は、樹脂モールドによって形成される。ステータ２０は、モールド部６０が形成された状態において、ステータコア２１の外周側面を含む外周部分の一部と、ティース部２３における第一対向面２３１が露出した状態となる（図２参照）。モールド部６０を形成する樹脂としては、熱硬化性樹脂が例示される。例えば、モールド部６０は、ＢＭＣ（Bulk Molding Compound）によって形成される。樹脂モールドは、全てのセグメント２２を対象としてコイル３０を形成し、その後、環状とされ、さらに、コイル３０の結線等が完了した１２個のセグメント２２を、樹脂モールド用の成形機に設けられた成形金型にセットして行われる。 The mold part 60 is formed by a resin mold. In the state where the mold part 60 is formed, the stator 20 is in a state in which a part of the outer peripheral portion including the outer peripheral side surface of the stator core 21 and the first facing surface 231 in the teeth part 23 are exposed (see FIG. 2). An example of the resin forming the mold part 60 is a thermosetting resin. For example, the mold part 60 is formed of BMC (Bulk Molding Compound). The resin mold forms the coil 30 for all the segments 22, and then has an annular shape. Further, 12 segments 22 in which the connection and the like of the coil 30 are completed are provided in the molding machine for the resin mold. It is performed by setting in a molding die.

モールド部６０は、図２に示すように、第一モールド部６１と、第二モールド部６２と、第三モールド部６３を備える。モールド部６０を形成する樹脂は、コイル３０が収納されたスロット部２６にも充填され、同一のスロット部２６に収納された隣り合うティース部２３に集中巻された各コイル３０の絶縁を確保する。このような各部を備えるモールド部６０は、樹脂モールドによって一体的に形成される。 As shown in FIG. 2, the mold part 60 includes a first mold part 61, a second mold part 62, and a third mold part 63. The resin forming the mold part 60 is also filled in the slot part 26 in which the coil 30 is accommodated, and the insulation of each coil 30 concentratedly wound on the adjacent teeth part 23 accommodated in the same slot part 26 is ensured. . The mold part 60 provided with such each part is integrally formed by a resin mold.

第一モールド部６１は、図２に示すように、ティース部２３において、第二対向面２３２を被覆する（図２で「第二対向面２３２」が不図示である状態も参照）。第一モールド部６１の一部は、ティース溝部２４に充填される。第一モールド部６１において、ロータ１２に対向する、図２に示す面は、第一対向面２３１と同一の曲率半径とされる。ロータ１２と第一モールド部６１の間のエアギャップは、第一対向面２３１の場合と同じく、第一距離となる。 As shown in FIG. 2, the first mold portion 61 covers the second facing surface 232 in the tooth portion 23 (see also the state where the “second facing surface 232” is not shown in FIG. 2). A part of the first mold part 61 is filled in the tooth groove part 24. In the first mold portion 61, the surface shown in FIG. 2 that faces the rotor 12 has the same radius of curvature as the first facing surface 231. The air gap between the rotor 12 and the first mold part 61 is the first distance as in the case of the first facing surface 231.

第二モールド部６２は、積層方向におけるステータコア２１の第一端面２１１の側に設けられ、第一端面２１１の側でコイル３０のコイルエンド部（図１に示す「コイル３０の部分」参照）を被覆する。第三モールド部６３は、積層方向におけるステータコア２１の第二端面の側に設けられ、第二端面の側でコイル３０のコイルエンド部（不図示）を被覆する。積層方向におけるステータコア２１の第一端面２１１の側で、第一モールド部６１と第二モールド部６２は、一体をなし、積層方向におけるステータコア２１の第二端面の側で、第一モールド部６１と第三モールド部６３は、一体をなす（図２に示す「ステータ２０の内周側面」参照）。 The second mold portion 62 is provided on the first end surface 211 side of the stator core 21 in the stacking direction, and the coil end portion of the coil 30 (see “the portion of the coil 30” shown in FIG. 1) on the first end surface 211 side. Cover. The third mold part 63 is provided on the second end face side of the stator core 21 in the stacking direction, and covers the coil end part (not shown) of the coil 30 on the second end face side. On the first end surface 211 side of the stator core 21 in the stacking direction, the first mold portion 61 and the second mold portion 62 are integrated, and on the second end surface side of the stator core 21 in the stacking direction, The third mold portion 63 is integrated (see “inner peripheral side surface of the stator 20” shown in FIG. 2).

＜結線方法＞
上述した、端子５０を用いて第一引出線部４１及び第二引出線部４２を接続するための結線方法について、図５を参照して説明する。結線方法は、装着工程と、かしめ工程を含む。 <Connection method>
A connection method for connecting the first lead wire portion 41 and the second lead wire portion 42 using the terminal 50 described above will be described with reference to FIG. The connection method includes a mounting process and a caulking process.

装着工程は、第一引出線部４１及び第二引出線部４２を、第一溝部５７及び第二溝部５９にそれぞれ装着する工程である。装着工程では、第一引出線部４１及び第二引出線部４２は、第一溝部５７では、基準方向の第二側から第一側（第一溝部５７の底側から開口側）に向けて、第一引出線部４１及び第二引出線部４２の順となり、第一保持部５６及び第二保持部５８の間で交差し、第二溝部５９では、第二引出線部４２及び第一引出線部４１の順となる、ようにして、第一溝部５７及び第二溝部５９にそれぞれ装着される。 The mounting step is a step of mounting the first lead line portion 41 and the second lead line portion 42 in the first groove portion 57 and the second groove portion 59, respectively. In the mounting process, the first lead wire portion 41 and the second lead wire portion 42 in the first groove portion 57 are directed from the second side in the reference direction to the first side (from the bottom side of the first groove portion 57 to the opening side). The first lead wire portion 41 and the second lead wire portion 42 are in this order, intersecting between the first holding portion 56 and the second holding portion 58, and in the second groove portion 59, the second lead wire portion 42 and the first lead wire portion 42. In the order of the leader line portion 41, the first groove portion 57 and the second groove portion 59 are respectively mounted.

かしめ工程は、装着工程が実行された後に行われる工程であり、第一溝部５７に第一引出線部４１及び第二引出線部４２が装着された第一保持部５６と、第二溝部５９に第二引出線部４２及び第一引出線部４１が装着された第二保持部５８をかしめる工程である。かしめ工程では、第一溝部５７の幅ＷＡが狭くなる方向に第一保持部５６を加圧し、第一保持部５６と、第一溝部５７に装着された第一引出線部４１及び第二引出線部４２の各部分を変形させる。また、かしめ工程では、第二溝部５９の幅ＷＢが狭くなる方向に第二保持部５８を加圧し、第二保持部５８と、第二溝部５９に装着された第二引出線部４２及び第一引出線部４１の各部分を変形させる。 The caulking process is a process performed after the mounting process is performed, and the first holding part 56 in which the first lead line part 41 and the second lead line part 42 are mounted in the first groove part 57 and the second groove part 59. This is a step of caulking the second holding portion 58 to which the second lead wire portion 42 and the first lead wire portion 41 are attached. In the caulking step, the first holding portion 56 is pressurized in the direction in which the width WA of the first groove portion 57 is narrowed, and the first holding portion 56, the first lead wire portion 41 and the second lead wire attached to the first groove portion 57 are used. Each part of the line part 42 is deformed. Further, in the caulking step, the second holding portion 58 is pressurized in the direction in which the width WB of the second groove portion 59 becomes narrow, and the second holding portion 58, the second lead wire portion 42 attached to the second groove portion 59, and the first Each part of the one leader line part 41 is deformed.

かしめ工程は、例えば、ヒュージングによって行われる。ヒュージングによるかしめ工程によれば、前述した各部の変形及び溶融によって、第一引出線部４１及び第二引出線部４２を、第一保持部５６及び第二保持部５８のそれぞれに電気的に接続することができる。ヒュージングは、既に実用化された技術であるため、これに関する説明は、省略する。かしめ工程の終了に伴い、結線方法は、終了する。 The caulking process is performed by fusing, for example. According to the caulking process by fusing, the first lead wire portion 41 and the second lead wire portion 42 are electrically connected to the first holding portion 56 and the second holding portion 58, respectively, by deformation and melting of each portion described above. Can be connected. Since fusing is a technology that has already been put into practical use, a description thereof will be omitted. The connection method ends with the end of the caulking process.

＜本実施形態の効果＞
本実施形態では、第一保持部５６及び第二保持部５８のそれぞれにおける第一引出線部４１及び第二引出線部４２の保持に関し、第一溝部５７での第一引出線部４１及び第二引出線部４２の重なり順と、第二溝部５９での第一引出線部４１及び第二引出線部４２の重なり順を反転させ、第一引出線部４１及び第二引出線部４２が第一保持部５６及び第二保持部５８の間で交差するような結線構造（図５参照）とした。 <Effect of this embodiment>
In the present embodiment, regarding the holding of the first lead wire portion 41 and the second lead wire portion 42 in each of the first holding portion 56 and the second holding portion 58, the first lead wire portion 41 and the first lead wire portion 41 and the second lead wire portion 42 in the first groove portion 57. The overlapping order of the two leader lines 42 and the overlapping order of the first leader line part 41 and the second leader line part 42 in the second groove part 59 are reversed, and the first leader line part 41 and the second leader line part 42 are It was set as the connection structure (refer FIG. 5) which cross | intersects between the 1st holding | maintenance part 56 and the 2nd holding | maintenance part 58. FIG.

そのため、第一引出線部４１と第二引出線部４２を好適に接続することができる。第一引出線部４１と第二引出線部４２を接続する際、第一引出線部４１及び第二引出線部４２が端子５０から浮き上がるといった事態の発生を好適に抑制し、スムーズに接続することができる。回転機１０の信頼性等を、向上させることが可能となる。回転機１０の信頼性の向上に伴い、回転機１０を備える電動車両を含む各種の製品の信頼性を向上させることができる。 Therefore, the 1st leader line part 41 and the 2nd leader line part 42 can be connected suitably. When connecting the first leader line portion 41 and the second leader line portion 42, the occurrence of a situation in which the first leader line portion 41 and the second leader line portion 42 are lifted from the terminal 50 is suitably suppressed, and the connection is made smoothly. be able to. The reliability of the rotating machine 10 can be improved. As the reliability of the rotating machine 10 is improved, the reliability of various products including an electric vehicle including the rotating machine 10 can be improved.

図５に示すような結線構造では、第一引出線部４１は、第三側から第一溝部５７を通過し、さらに、第四側の第二溝部５９を通過して、第一溝部５７及び第二溝部５９に装着される。第二引出線部４２は、第四側から第二溝部５９を通過し、さらに、第三側の第一溝部５７を通過して、第二溝部５９及び第一溝部５７に装着される。そのため、第一引出線部４１及び第二引出線部４２は、第一保持部５６及び第二保持部５８が離間する距離より長い寸法とされる。 In the connection structure as shown in FIG. 5, the first lead wire portion 41 passes through the first groove portion 57 from the third side, further passes through the second groove portion 59 on the fourth side, and the first groove portion 57 and The second groove 59 is attached. The second lead wire portion 42 passes through the second groove portion 59 from the fourth side, and further passes through the first groove portion 57 on the third side, and is attached to the second groove portion 59 and the first groove portion 57. Therefore, the first leader line part 41 and the second leader line part 42 are longer than the distance at which the first holding part 56 and the second holding part 58 are separated.

導線が被覆導線である場合、かしめによる結線方法に際し、接続対象の導線の端部、即ち、第一引出線部４１及び第二引出線部４２に形成された被覆の剥離が必要となる場合がある。被覆の剥離が不十分であると、好適な導通が確保されず、好適な接続を実現することができなくなる場合がある。上述したような所定の長さ寸法とされる第一引出線部４１及び第二引出線部４２によれば、この部分の取り回しが容易となり、好適な剥離を行うことが可能となる。好適な剥離を実現し、回転機１０の信頼性等を、より向上させることが可能となる。 When the conducting wire is a covered conducting wire, it may be necessary to peel off the coating formed on the end portions of the conducting wire to be connected, that is, the first lead wire portion 41 and the second lead wire portion 42, in the caulking method. is there. If the coating is not sufficiently peeled off, suitable conduction may not be ensured, and a suitable connection may not be realized. According to the first lead wire portion 41 and the second lead wire portion 42 having the predetermined length as described above, it is easy to handle this portion, and it is possible to perform suitable peeling. Suitable peeling can be realized and the reliability of the rotating machine 10 can be further improved.

＜変形例＞
本実施形態は、次のようにすることもできる。以下に示す変形例は、他の変形例と適宜組み合わせて採用するようにしてもよい。 <Modification>
This embodiment can also be performed as follows. The following modifications may be adopted in combination with other modifications as appropriate.

（１）上記では、ロータ１２の極数が１４極で、ステータ２０のスロット数が１２個である回転機１０を例に説明した。ロータの極数及び／又はステータのスロット数は、これとは異なる数としてもよい。ロータの極数及び／又はステータのスロット数は、要求される性能等の諸条件を考慮し、適宜設定される。ロータは、永久磁石がロータコアの外周側面に設けられた形式のロータ、又は、永久磁石を備えない形式のロータとしてもよい。回転機がモータである場合、永久磁石がロータコアの外周側面に設けられたロータを備えるモータは、ＳＰＭ（Surface Permanent Magnet）モータと称される。 (1) In the above description, the rotating machine 10 in which the rotor 12 has 14 poles and the stator 20 has 12 slots has been described as an example. The number of rotor poles and / or the number of stator slots may be different from this. The number of poles of the rotor and / or the number of slots of the stator is appropriately set in consideration of various conditions such as required performance. The rotor may be a rotor of a type in which a permanent magnet is provided on the outer peripheral side surface of the rotor core, or a rotor of a type that does not include a permanent magnet. When the rotating machine is a motor, a motor including a rotor in which a permanent magnet is provided on the outer peripheral side surface of the rotor core is referred to as an SPM (Surface Permanent Magnet) motor.

（２）上記では、ステータコア２１をセグメント２２を環状に配置して形成し、ティース部２３にコイル３０が集中巻されたステータ２０を例に説明した。ステータコアは一体型のステータコアであってもよい。また、集中巻とは異なる方法で巻線されたコイルを備えるステータとしてもよい。例えば、分布巻又は全節巻によるコイルを備えるステータとしてもよい。樹脂モールドされたステータ２０を例に説明した。樹脂モールドは省略するようにしてもよい。この場合、ステータにおいて、モールド部６０は、省略される。 (2) In the above description, the stator core 21 is formed by arranging the segments 22 in an annular shape and the coils 30 are concentratedly wound around the teeth portion 23. The stator core may be an integrated stator core. Moreover, it is good also as a stator provided with the coil wound by the method different from concentrated winding. For example, a stator including a coil with distributed winding or full-pitch winding may be used. The resin-molded stator 20 has been described as an example. The resin mold may be omitted. In this case, the mold part 60 is omitted in the stator.

（３）上記では、ロータ１２がステータ２０の内周側に回転自在に支持された内転型の回転機１０を例に説明した。回転機は、外転型の回転機であってもよい。外転型の回転機のステータでは、複数のティース部は、ロータの回転軸となるシャフトを中心とする径方向をヨーク部から外側に突出する。外転型の回転機のロータは、ステータの外側で、複数のティース部に対向する。 (3) In the above description, the internal rotation type rotating machine 10 in which the rotor 12 is rotatably supported on the inner peripheral side of the stator 20 has been described as an example. The rotating machine may be an abduction type rotating machine. In the stator of the outer rotation type rotary machine, the plurality of teeth portions protrude outward from the yoke portion in the radial direction with the shaft serving as the rotation axis of the rotor as the center. The rotor of the outer rotation type rotating machine is opposed to the plurality of tooth portions outside the stator.

１０回転機
１２ロータ
１４ロータコア、１６永久磁石、１８シャフト
２０ステータ
２１ステータコア、２２ステータコアセグメント（セグメント）
２３ティース部、２４ティース溝部
２５ヨーク部、２６スロット部
３０コイル
Ｕ１，Ｕ２，Ｕ３，Ｕ４コイル
Ｖ１，Ｖ２，Ｖ３，Ｖ４コイル
Ｗ１，Ｗ２，Ｗ３，Ｗ４コイル
３２Ｕ，３２Ｖ，３２Ｗ連結コイル
３４インシュレータ
４１，４１Ｕ，４１Ｖ，４１Ｗ第一引出線部
４２，４２Ｕ，４２Ｖ，４２Ｗ第二引出線部
５０，５０Ｕ，５０Ｖ，５０Ｗ端子
５２，５２Ｕ，５２Ｖ，５２Ｗ外部接続部
５４基部
５６第一保持部
５７第一溝部
５８第二保持部
５９第二溝部
６０モールド部
６１第一モールド部、６２第二モールド部、６３第三モールド部
２１１第一端面
２３１第一対向面、２３２第二対向面
２５１ヨーク部分
φＤ直径、ＬＡ，ＬＢ深さ、ＷＡ，ＷＢ幅 DESCRIPTION OF SYMBOLS 10 Rotating machine 12 Rotor 14 Rotor core, 16 Permanent magnet, 18 Shaft 20 Stator 21 Stator core, 22 Stator core segment (segment)
23 Teeth part, 24 Teeth groove part 25 Yoke part, 26 Slot part 30 Coil U1, U2, U3, U4 Coil V1, V2, V3, V4 Coil W1, W2, W3, W4 Coil 32U, 32V, 32W Connecting coil 34 Insulator 41 , 41U, 41V, 41W First leader portion 42, 42U, 42V, 42W Second leader portion 50, 50U, 50V, 50W Terminal 52, 52U, 52V, 52W External connection portion 54 Base portion 56 First holding portion 57 First One groove portion 58 Second holding portion 59 Second groove portion 60 Mold portion 61 First mold portion, 62 Second mold portion, 63 Third mold portion 211 First end surface 231 First facing surface, 232 Second facing surface 251 Yoke portion φD Diameter, LA, LB depth, WA, WB width

Claims

A first lead wire portion continuously connected to an end portion of a conducting wire forming a first coil included in the stator of the rotating machine, and a second lead continuously connected to an end portion of the conducting wire forming a second coil provided in the stator. It is a connection structure in which a wire part is connected using a terminal,
The terminal is
A concave first groove portion to which the first lead wire portion and the second lead wire portion are attached is formed, and holds the first lead wire portion and the second lead wire portion attached to the first groove portion. A first holding part;
The first holding part is formed at a predetermined distance from the first holding part, and is formed with a concave second groove part to which the first lead line part and the second lead line part are attached, and is attached to the second groove part. A second holding part for holding the leader line part and the second leader line part,
The first leader line part and the second leader line part are:
In the reference direction from the bottom side of the first groove part toward the opening side, the first lead line part and the second lead line part are attached to the first groove part in this order,
In the direction from the bottom side of the second groove part corresponding to the reference direction toward the opening side, the second lead line part and the first lead line part in this order, mounted on the second groove part,
The connection structure which cross | intersects between said 1st holding | maintenance part and said 2nd holding | maintenance part.

A rotating machine comprising a rotor and a stator,
The stator is
A first coil;
A second coil;
A terminal for connecting a first lead wire portion continuously connected to an end portion of the lead wire forming the first coil and a second lead wire portion continuously connected to an end portion of the lead wire forming the second coil. And comprising
The terminal is
A concave first groove portion to which the first lead wire portion and the second lead wire portion are attached is formed, and holds the first lead wire portion and the second lead wire portion attached to the first groove portion. A first holding part;
The first holding part is formed at a predetermined distance from the first holding part, and is formed with a concave second groove part to which the first lead line part and the second lead line part are attached, and is attached to the second groove part. A second holding part for holding the leader line part and the second leader line part,
The first leader line part and the second leader line part are:
In the reference direction from the bottom side of the first groove part toward the opening side, the first lead line part and the second lead line part are attached to the first groove part in this order,
In the direction from the bottom side of the second groove part corresponding to the reference direction toward the opening side, the second lead line part and the first lead line part in this order, mounted on the second groove part,
A rotating machine that intersects between the first holding part and the second holding part.

An electric vehicle comprising the rotating machine according to claim 2.

A first lead wire portion continuously connected to an end portion of a conducting wire forming a first coil included in the stator of the rotating machine, and a second lead continuously connected to an end portion of the conducting wire forming a second coil provided in the stator. A first holding portion for holding the first lead wire portion and the second lead wire portion attached to the first groove portion; A concave second groove portion is formed which is spaced apart from the holding portion by a predetermined distance and in which the first lead wire portion and the second lead wire portion are attached, and the first lead portion attached to the second groove portion. A wire connection method for connecting the first lead wire portion and the second lead wire portion using a terminal comprising a lead wire portion and a second holding portion for holding the second lead wire portion. ,
In the reference direction from the bottom side of the first groove portion toward the opening side, the first lead wire portion and the second lead wire portion are arranged in the order of the first lead wire portion and the second lead wire portion in the order of the first lead wire portion and the second lead wire portion. In the direction from the bottom side of the second groove part corresponding to the reference direction toward the opening side, the second leader line part and the first leader line part in this order, A mounting step of mounting the first lead wire portion in the second groove portion;
The first holding part in which the first lead line part and the second lead line part are attached to the first groove part, and the second lead line part and the first lead line part are attached to the second groove part. And a caulking step for caulking the second holding part.