JP4962127B2 - Insulator - Google Patents

Insulator Download PDF

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JP4962127B2
JP4962127B2 JP2007121577A JP2007121577A JP4962127B2 JP 4962127 B2 JP4962127 B2 JP 4962127B2 JP 2007121577 A JP2007121577 A JP 2007121577A JP 2007121577 A JP2007121577 A JP 2007121577A JP 4962127 B2 JP4962127 B2 JP 4962127B2
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coil
winding
winding end
end terminal
stator
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JP2008278694A (en
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兼作 長澤
和嗣 草別
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Sumitomo Electric Industries Ltd
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Sumitomo Electric Industries Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility

Description

この発明は、ハイブリッド自動車や燃料電池自動車等に組み込まれる回転電機用ステータのインシュレータに関する。   The present invention relates to an insulator for a stator for a rotating electrical machine incorporated in a hybrid vehicle, a fuel cell vehicle, or the like.

モータやオルタネータなどの回転電機に用いられるステータは、一般に、磁性体からなるステータコアに絶縁体からなるインシュレータを装着し、そのインシュレータにコイルを巻回して形成される。   A stator used in a rotating electrical machine such as a motor or an alternator is generally formed by attaching an insulator made of an insulator to a stator core made of a magnetic material, and winding a coil around the insulator.

このステータに組み込まれるインシュレータとして、コイル巻回部に巻回されたコイルの巻き終わり端末を、案内片のコーナに沿って折り曲げた状態に案内し、その案内されたコイルの巻き終わり端末を係止片に係止するようにしたインシュレータが知られている（特許文献１）。
特開２００６−６７７４０号公報 As an insulator incorporated in the stator, the coil end terminal of the coil wound around the coil winding part is guided to be bent along the corner of the guide piece, and the coil end terminal of the guided coil is locked. An insulator that is locked to a piece is known (Patent Document 1).
JP 2006-67740 A

しかし、コイル端末は折り曲げると円弧状に変形するので、このインシュレータは、コイルの巻き終わり端末が案内片のコーナに密着しにくい。そのため、コイルの巻き終わり端末と案内片の間に遊びを生じやすく、その遊びによってコイルの巻回に緩みを生じ、ステータの性能低下を招きやすかった。   However, since the coil terminal is deformed into an arc shape when it is bent, the insulator is less likely to be in close contact with the corner of the guide piece. For this reason, play is likely to occur between the coil winding end terminal and the guide piece, and the coil winding is loosened by the play, and the performance of the stator is likely to be lowered.

この発明が解決しようとする課題は、コイルの巻回が緩みにくいインシュレータを提供することである。   The problem to be solved by the present invention is to provide an insulator in which winding of a coil is difficult to loosen.

上記の課題を解決するために、コイルが巻回されるコイル巻回部と、そのコイル巻回部に巻回されたコイルの巻き終わり端末を円弧状のガイド面に沿って折り曲げた状態に案内する巻き終わり端末案内部と、その巻き終わり端末案内部で案内された前記コイルの巻き終わり端末を係止させる巻き終わり端末係止部とを有する構成をインシュレータに採用した。   In order to solve the above problems, a coil winding portion around which a coil is wound and a winding end terminal of the coil wound around the coil winding portion are guided in a state of being bent along an arcuate guide surface. The insulator has a configuration including a winding end terminal guide portion and a winding end terminal locking portion for locking the winding end terminal of the coil guided by the winding end terminal guide portion.

このインシュレータは、前記巻き終わり端末係止部が、前記コイルの巻き終わり端末を受け入れるスリットを有し、そのスリットが、スリットの開放端から奥に向かって次第に幅が狭くなる導入部と、その導入部からスリットの奥に向かって幅が広くなる段部とを有するようにすると、より好ましいものとなる。   In this insulator, the winding end terminal locking portion has a slit for receiving the winding end terminal of the coil, and the slit gradually narrows from the open end of the slit toward the back, and the introduction It is more preferable to have a step portion whose width increases from the portion toward the back of the slit.

この発明のインシュレータは、巻き終わり端末案内部のガイド面が円弧状なので、巻き終わり端末案内部で折り曲げた状態に案内されたコイルの巻き終わり端末がガイド面に密着しやすい。そのため、コイルの巻き終わり端末と巻き終わり端末案内部の間に遊びを生じにくく、コイルの巻回が緩みにくい。   In the insulator according to the present invention, since the guide surface of the end-of-winding terminal guide portion is arcuate, the end-of-winding end of the coil guided in the bent state at the end-of-winding terminal guide portion tends to be in close contact with the guide surface. Therefore, it is difficult for play to occur between the coil winding end terminal and the winding end terminal guide, and the coil winding is difficult to loosen.

さらに、前記巻き終わり端末係止部が、前記コイルの巻き終わり端末を受け入れるスリットを有し、そのスリットが、スリットの開放端から奥に向かって次第に幅が狭くなる導入部と、その導入部からスリットの奥に向かって幅が広くなる段部とを有するものは、コイルの巻き終わり端末をスリットに引っ掛けて係止することができるので、コイルの巻き終わり端末を係止する作業が簡単である。   Furthermore, the winding end terminal locking portion has a slit for receiving the winding end terminal of the coil, and the slit gradually decreases from the open end of the slit toward the back, and from the introduction portion The one having a stepped portion that becomes wider toward the back of the slit can be hooked and locked to the end of winding of the coil, so that it is easy to lock the end of winding of the coil. .

図１に、この発明の実施形態のインシュレータを示す。このインシュレータは、筒状のコイル巻回部１と、コイル巻回部１の一端と他端にそれぞれ形成されたフランジ部２，３と、ステータ外周側のフランジ部３から延出する延出部４とを有する。コイル巻回部１とフランジ部２，３と延出部４はいずれも絶縁材料からなる。   FIG. 1 shows an insulator according to an embodiment of the present invention. The insulator includes a cylindrical coil winding portion 1, flange portions 2 and 3 formed at one end and the other end of the coil winding portion 1, respectively, and an extension portion extending from the flange portion 3 on the outer peripheral side of the stator. 4. The coil winding part 1, the flange parts 2 and 3, and the extension part 4 are all made of an insulating material.

延出部４には、ステータ周方向に対向する１対の巻き始め端末係止片５，６と、ステータ周方向に対向する１対の巻き終わり端末係止片７，８が、ステータ周方向に間隔をおいて形成されている。   The extension portion 4 includes a pair of winding start terminal locking pieces 5 and 6 opposed in the stator circumferential direction and a pair of winding end terminal locking pieces 7 and 8 opposed in the stator circumferential direction. Are formed at intervals.

巻き始め端末係止片５，６には、一端が開放したスリット９，１０がそれぞれ形成され、その各スリット９，１０に、図２に示すように、ステータ周方向に延びるコイル１１の巻き始め端末１１ａを収容可能となっている。   The winding start terminal locking pieces 5 and 6 are respectively formed with slits 9 and 10 whose one ends are opened, and in each of the slits 9 and 10, as shown in FIG. 2, the winding start of the coil 11 extending in the circumferential direction of the stator is performed. The terminal 11a can be accommodated.

フランジ部３のステータ内周側の側面には、図１に示すように、コイル巻回部１の外周に沿ってガイド溝１２が形成され、このガイド溝１２を通じて巻き始め端末係止片６からコイル巻回部１にコイル１１を導入することにより、巻き始め端末係止片６から導入されるコイル１１とコイル巻回部１に巻回されるコイル１１が干渉するのを防止している。   As shown in FIG. 1, a guide groove 12 is formed along the outer periphery of the coil winding portion 1 on the side surface on the stator inner peripheral side of the flange portion 3, and winding starts from the terminal locking piece 6 through the guide groove 12. By introducing the coil 11 into the coil winding portion 1, the coil 11 introduced from the winding start terminal locking piece 6 and the coil 11 wound around the coil winding portion 1 are prevented from interfering with each other.

また、巻き終わり端末係止片７，８には、巻き始め端末係止片５，６と同様に、一端が開放したスリット１３，１４がそれぞれ形成され、その各スリット１３，１４に、図３に示すように、ステータ周方向に延びた状態のコイル１１の巻き終わり端末１１ｂを収容可能となっている。スリット１３は、図４に示すように、スリット１３の開放端から奥に向かって次第に幅が狭くなる導入部１３Ａと、その導入部１３Ａからスリット１３の奥に向かって幅が広くなる段部１３Ｂとを有し、その段部１３Ｂがスリット１３内の巻き終わり端末１１ｂを係止する。スリット９，１０，１４も、スリット１３と同様に形成されている。   Further, similarly to the winding start terminal locking pieces 5 and 6, the winding end terminal locking pieces 7 and 8 are respectively formed with slits 13 and 14 whose one ends are opened, and in each of the slits 13 and 14, FIG. As shown in FIG. 4, the winding end terminal 11b of the coil 11 extending in the circumferential direction of the stator can be accommodated. As shown in FIG. 4, the slit 13 has an introduction portion 13A that gradually decreases in width from the open end of the slit 13 toward the back, and a step portion 13B that increases in width from the introduction portion 13A toward the back of the slit 13. The step portion 13B locks the winding end terminal 11b in the slit 13. The slits 9, 10 and 14 are formed in the same manner as the slit 13.

巻き終わり端末係止片７には、図５に示すように、コイル巻回部１からステータ外周側に引き出されたコイル１１の巻き終わり端末１１ｂを、円弧状のガイド面１５に沿ってステータ周方向に折り曲げた状態に案内する巻き終わり端末案内部１６が一体に形成されている。   As shown in FIG. 5, the winding end terminal locking piece 7 is provided with a winding end terminal 11 b of the coil 11 drawn from the coil winding portion 1 to the stator outer peripheral side along the arcuate guide surface 15. The end-of-winding terminal guide portion 16 that guides in a state bent in the direction is integrally formed.

また、このインシュレータは、図１に示す分割線１７の位置でステータ周方向に分割することが可能となっている。   Further, this insulator can be divided in the stator circumferential direction at the position of the dividing line 17 shown in FIG.

このインシュレータへのコイル１１の巻回は、たとえば次のようにして行なう。   For example, the coil 11 is wound around the insulator as follows.

まず、分割線１７の位置で分割したインシュレータを分割コア１８に装着し、図２に示すように、コイル１１の巻き始め端末１１ａを巻き始め端末係止片５，６に係止させ、巻き始め端末係止片６からガイド溝１２を通ってコイル巻回部１にコイル１１を導入し、コイル巻回部１にコイル１１を巻回する。コイル１１を巻回した後、図３に示すように、コイル１１の巻き終わり端末１１ｂをステータ外周側に引き出し、その巻き終わり端末１１ｂを巻き終わり端末案内部１６のガイド面１５に沿ってステータ周方向に折り曲げ、巻き終わり端末係止片７，８に係止させる。   First, the insulator divided at the position of the dividing line 17 is attached to the divided core 18, and the winding start terminal 11a of the coil 11 is locked to the terminal locking pieces 5 and 6 as shown in FIG. The coil 11 is introduced into the coil winding part 1 from the terminal locking piece 6 through the guide groove 12, and the coil 11 is wound around the coil winding part 1. After winding the coil 11, as shown in FIG. 3, the winding end terminal 11 b of the coil 11 is drawn out to the stator outer peripheral side, and the winding end terminal 11 b is pulled along the guide surface 15 of the winding end terminal guide 16. It is bent in the direction and locked to the end-of-winding terminal locking pieces 7 and 8.

このようにしてインシュレータに巻回されたコイル１１は、巻き始め端末係止片５，６の間の位置で中性点バスバー（図示せず）に接続されるとともに、巻き終わり端末係止片７，８の間の位置でＵＶＷ相のいずれかに対応する給電用バスバー（図示せず）に接続される。   The coil 11 wound around the insulator in this way is connected to a neutral point bus bar (not shown) at a position between the winding start terminal locking pieces 5 and 6, and the winding end terminal locking piece 7 , 8 is connected to a power supply bus bar (not shown) corresponding to one of the UVW phases.

このインシュレータを用いると、巻き終わり端末案内部１６のガイド面１５が円弧状なので、巻き終わり端末案内部１６で折り曲げた状態に案内されたコイル１１の巻き終わり端末１１ｂがガイド面１５に密着しやすい。そのため、コイル１１の巻き終わり端末１１ｂと巻き終わり端末案内部１６の間に遊びを生じにくく、コイル１１の巻回が緩みにくい。   When this insulator is used, since the guide surface 15 of the end-of-winding terminal guide 16 is arcuate, the end-of-winding terminal 11b of the coil 11 guided in a bent state at the end-of-winding terminal guide 16 is likely to be in close contact with the guide surface 15. . Therefore, it is difficult for play to occur between the winding end terminal 11b and the winding end terminal guide portion 16 of the coil 11, and the winding of the coil 11 is difficult to loosen.

また、コイル１１の巻き終わり端末１１ｂをスリット１３，１４に引っ掛けて係止することができるので、コイル１１の巻き終わり端末１１ｂを係止する作業が簡単である。   Moreover, since the winding end terminal 11b of the coil 11 can be hooked and locked to the slits 13 and 14, the operation of locking the winding end terminal 11b of the coil 11 is simple.

上記実施形態では、巻き終わり端末案内部１６を巻き終わり端末係止片７と一体に形成しているが、巻き終わり端末案内部１６は、巻き終わり端末係止片７と別体に形成してもよい。また、上記実施形態では、対向１対の巻き終わり端末係止片７，８でコイル１１の巻き終わり端末１１ｂをより確実に係止するようにしているが、一方の巻き終わり端末係止片８のみでコイル１１の巻き終わり端末１１ｂを係止するようにしてもよい。   In the above embodiment, the winding end terminal guide portion 16 is formed integrally with the winding end terminal locking piece 7, but the winding end terminal guide portion 16 is formed separately from the winding end terminal locking piece 7. Also good. Moreover, in the said embodiment, although the winding end terminal lock | rock 11b of the coil 11 is more reliably locked by one pair of opposing winding end terminal locking pieces 7 and 8, one winding end terminal locking piece 8 is used. Only the end of winding 11b of the coil 11 may be locked.

また、上記実施形態では、円環状に配置されてステータコアを形成する分割コア１８にインシュレータを装着しているが、このインシュレータは、電磁鋼板の積層体で一体に形成した円環状のステータコアに装着してもよい。   Moreover, in the said embodiment, although the insulator is mounted | worn with the division | segmentation core 18 arrange | positioned annularly and forming a stator core, this insulator is mounted | worn with the annular stator core formed integrally with the laminated body of the electromagnetic steel plate. May be.

図では、２本のコイルを並列に巻回しているが、１本のコイルを巻回するようにしてもよい。   In the figure, two coils are wound in parallel, but one coil may be wound.

今回開示された実施の形態はすべての点で例示であって制限的なものではないと考えられるべきである。本発明の範囲は、上記した意味ではなく、特許請求の範囲によって示され、特許請求の範囲と均等の意味および範囲内でのすべての変更が含まれることが意図される。   The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the meanings described above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

この発明の実施形態のインシュレータを示す斜視図The perspective view which shows the insulator of embodiment of this invention 図１のインシュレータにコイルを巻き始めた状態を示す斜視図The perspective view which shows the state which started winding the coil to the insulator of FIG. 図１のインシュレータにコイルを巻き終わった状態を示す斜視図The perspective view which shows the state which finished winding the coil to the insulator of FIG. 図３に示す巻き終わり端末係止片の拡大断面図Enlarged sectional view of the winding end terminal locking piece shown in FIG. 図３のインシュレータの平面図Plan view of the insulator of FIG.

符号の説明Explanation of symbols

１ コイル巻回部
７，８ 巻き終わり端末係止片
１１ コイル
１１ｂ 巻き終わり端末
１３，１４ スリット
１３Ａ 導入部
１３Ｂ 段部
１５ ガイド面
１６ 巻き終わり端末案内部 DESCRIPTION OF SYMBOLS 1 Coil winding part 7, 8 Winding end terminal locking piece 11 Coil 11b Winding end terminal 13, 14 Slit 13A Introduction part 13B Step part 15 Guide surface 16 Winding end terminal guide part

Claims (2)

コイル（１１）が巻回されるコイル巻回部（１）と、そのコイル巻回部（１）に巻回されたコイル（１１）の巻き終わり端末（１１ｂ）を円弧状のガイド面（１５）に沿って折り曲げた状態に案内する巻き終わり端末案内部（１６）と、その巻き終わり端末案内部（１６）で案内された前記コイル（１１）の巻き終わり端末（１１ｂ）を係止させるステータ周方向に対向する１対の巻き終わり端末係止部（７，８）とを有し、
前記ガイド面（１５）は、前記コイル巻回部（１）からステータ外周側に引き出された巻き終わり端末（１１ｂ）をステータ外周側に向かってステータ周方向に曲げる円弧状に形成され、
前記１対の巻き終わり端末係止部（７，８）が、前記ガイド面（１５）からステータ周方向に延び出した前記巻き終わり端末（１１ｂ）をステータ周方向に延びた状態で係止するインシュレータ。 A coil winding part (1) around which the coil (11) is wound and a winding end terminal (11b) of the coil (11) wound around the coil winding part (1) are connected to an arcuate guide surface (15 The winding end terminal guide portion (16) guided in a state bent along the winding end), and the stator for locking the winding end terminal (11b) of the coil (11) guided by the winding end terminal guide portion (16). winding end of a pair of opposed circumferentially possess a terminal locking portion (7,8),
The guide surface (15) is formed in an arc shape that bends the winding end terminal (11b) drawn from the coil winding portion (1) to the stator outer circumferential side in the stator circumferential direction toward the stator outer circumferential side,
The pair of winding end terminal locking portions (7, 8) locks the winding end terminal (11b) extending in the circumferential direction of the stator from the guide surface (15) in a state of extending in the stator circumferential direction. Insulator. 前記巻き終わり端末係止部（７）は、前記コイル（１１）の巻き終わり端末（１１ｂ）を受け入れるスリット（１３）を有し、そのスリット（１３）は、スリット（１３）の開放端から奥に向かって次第に幅が狭くなる導入部（１３Ａ）と、その導入部（１３Ａ）からスリット（１３）の奥に向かって幅が広くなる段部（１３Ｂ）とを有する請求項１に記載のインシュレータ。
The winding end terminal locking portion (7) has a slit (13) for receiving the winding end terminal (11b) of the coil (11), and the slit (13) is located at the back from the open end of the slit (13). 2. The insulator according to claim 1, further comprising: an introduction portion (13 </ b> A) that gradually decreases in width toward the back, and a step portion (13 </ b> B) that increases in width from the introduction portion (13 </ b> A) toward the back of the slit (13). .
JP2007121577A 2007-05-02 2007-05-02 Insulator Expired - Fee Related JP4962127B2 (en)

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