JP5716957B2 - Centralized power distribution member for thin brushless motor for vehicles - Google Patents

Centralized power distribution member for thin brushless motor for vehicles Download PDF

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JP5716957B2
JP5716957B2 JP2011060670A JP2011060670A JP5716957B2 JP 5716957 B2 JP5716957 B2 JP 5716957B2 JP 2011060670 A JP2011060670 A JP 2011060670A JP 2011060670 A JP2011060670 A JP 2011060670A JP 5716957 B2 JP5716957 B2 JP 5716957B2
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bus bar
holder
power distribution
distribution member
brushless motor
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JP2012200039A (en
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務 橋本
務 橋本
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Sumitomo Wiring Systems 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

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Description

本発明は、車両用薄型ブラシレスモータの集中配電部材に関する。   The present invention relates to a concentrated power distribution member of a thin brushless motor for a vehicle.

ロータをリング状のステータで包囲した形態の車両用薄型ブラシレスモータでは、ステータが、巻き線からなる複数の磁極と、この磁極に給電するための円環状をなす集中配電部材とを備えて構成されている。このような集中配電部材の一例として、従来、特許文献１に開示されたものが知られている。このものは、バッテリに接続される給電端子と、巻き線に接続される接続端子とを一体的に設けて円環状に曲成されたバスバーを、互いに径を異にした３種類備え、これらのバスバーを、３条の保持溝を設けた絶縁ホルダ内に同心に配して保持し、同絶縁ホルダの回りに絶縁樹脂層を形成した構造である。   In a thin brushless motor for a vehicle in which a rotor is surrounded by a ring-shaped stator, the stator is configured to include a plurality of magnetic poles made of windings and a concentrated power distribution member that forms an annular shape for supplying power to the magnetic poles. ing. As an example of such a concentrated power distribution member, one disclosed in Patent Document 1 has been known. This is provided with three types of bus bars that are formed in an annular shape by integrally providing a power supply terminal connected to a battery and a connection terminal connected to a winding, and having different diameters. The bus bar is concentrically held in an insulating holder provided with three holding grooves, and an insulating resin layer is formed around the insulating holder.

特開２００３−１３４７５９号公報JP 2003-134759 A

上記構造の集中配電部材では、その内周側に巻き線が配される構造であるため、巻き線と接続される接続端子はバスバーから内側を向いて設けられる一方、給電端子は外側に向けて設けられるが、上記のように各バスバーが同心に配される関係上、初めから接続端子と給電端子が径方向の内側と外側を向いて設けられていると、例えば各バスバーを径方向の外側から絶縁ホルダの対応する保持溝に順次に嵌めようとしたとき、前のバスバーの接続端子に次のバスバーが干渉して嵌めることができない。そのため、初めは接続端子がバスバーの軸方向に突出した姿勢としておいて、各バスバーを外側から順次に保持溝に嵌め、嵌め終わってから各接続端子を径方向の内側に向けて曲げるようにしており、面倒な作業が余儀なくされて、ひいては製造コストの増大に繋がるという問題があった。
本発明は上記のような事情に基づいて完成されたものであって、その目的は、組立工程が簡略化できる集中配電部材を提供するところにある。 In the concentrated power distribution member having the above structure, since the winding is arranged on the inner peripheral side thereof, the connection terminal connected to the winding is provided facing inward from the bus bar, while the feeding terminal is directed outward. However, if each bus bar is concentrically arranged as described above, if the connection terminal and the power supply terminal are provided so as to face the inner side and the outer side in the radial direction from the beginning, for example, each bus bar is connected to the outer side in the radial direction. When trying to fit sequentially into the corresponding holding grooves of the insulating holder, the next bus bar cannot interfere with the connecting terminal of the previous bus bar. For this reason, the connection terminals are initially projected in the axial direction of the bus bar, and the bus bars are sequentially fitted into the holding grooves from the outside, and after the fitting, the connection terminals are bent toward the inner side in the radial direction. As a result, troublesome work has been forced, leading to an increase in manufacturing costs.
The present invention has been completed based on the above circumstances, and an object of the present invention is to provide a centralized power distribution member that can simplify the assembly process.

本発明は、車両用薄型ブラシレスモータを構成するステータの巻き線に電力を供給するための集中配電部材であって、給電端子と、前記巻き線との接続端子とを備えた多角形の環状をなす複数のバスバーと、前記バスバー間に介装される多角形の環状をなす合成樹脂製の絶縁板と、前記バスバーと前記絶縁板とを交互に積層して嵌合可能な保持溝を有する多角形の環状をなす合成樹脂製のホルダと、が具備されているところに特徴を有する。
集中配電部材は、ホルダの保持溝内にバスバーと絶縁板とを交互に嵌合して積層したのちこれらを結束することで組み立てられる。単にバスバーと絶縁板とを保持溝内に嵌合するだけで組み立てられ、すなわち組立作業が簡単にでき、組立時間の大幅な削減ができて、ひいては製造コストの削減に寄与することが可能となる。 The present invention is a concentrated power distribution member for supplying electric power to a winding of a stator that constitutes a thin brushless motor for a vehicle, and has a polygonal annular shape including a power supply terminal and a connection terminal for the winding. A plurality of bus bars formed, a polygonal ring-shaped synthetic resin insulating plate interposed between the bus bars, and a plurality of holding grooves in which the bus bars and the insulating plates can be alternately stacked and fitted. It is characterized in that it is provided with a holder made of synthetic resin having a square ring shape.
The concentrated power distribution member is assembled by alternately fitting bus bars and insulating plates into the holding grooves of the holder and laminating them. Assembling is performed simply by fitting the bus bar and the insulating plate into the holding groove, that is, the assembling work can be simplified, the assembling time can be greatly reduced, and the manufacturing cost can be reduced. .

また、以下のような構成としてもよい。
（１）前記絶縁板が前記バスバーよりも幅広かつ厚肉に形成され、同絶縁板の一面には前記バスバーを面一に嵌合可能な嵌合溝が形成されているとともに、前記ホルダの前記保持溝の溝底にも前記バスバーを面一に嵌合可能な嵌合溝が形成されている。バスバーの４周面を合成樹脂材で覆うことができ、各バスバー間の絶縁をより確実に図ることができる。
（２）前記ホルダの前記保持溝の開口を覆う合成樹脂製のカバーが備えられ、同カバーと前記ホルダとの間に弾性的なロック機構が設けられている。カバーを被せてホルダとの間でロックを掛けることで、積層されたバスバーと絶縁板との結束が行える。全体の組立工程のさらなる簡略化が図られる。 The following configuration may also be used.
(1) The insulating plate is formed wider and thicker than the bus bar, and a fitting groove capable of fitting the bus bar flush with each other is formed on one surface of the insulating plate. A fitting groove capable of fitting the bus bar flush with each other is also formed at the groove bottom of the holding groove. The four circumferential surfaces of the bus bars can be covered with the synthetic resin material, and the insulation between the bus bars can be more reliably achieved.
(2) A synthetic resin cover that covers the opening of the holding groove of the holder is provided, and an elastic locking mechanism is provided between the cover and the holder. By covering the cover and applying a lock between the holder, the stacked bus bars and the insulating plate can be bound. Further simplification of the entire assembly process is achieved.

（３）前記ロック機構が、前記ホルダの内外両周面に設けられている。カバーのホルダに対するロックがより確実に行われる。
（４）前記カバーには、前記バスバーと前記絶縁板とからなる積層体の上面を弾性的に押圧する押圧部が設けられている。バスバーと絶縁板とからなる積層体を、ホルダの保持溝内でがたつきなく保持できる。
（５）前記カバーが、分割された複数個によって構成されている。カバーに対してロック機構や押圧部等の機能部位を多数備える場合に、成形金型自体の形成がしやすくなる。 (3) The lock mechanism is provided on both inner and outer peripheral surfaces of the holder. The cover is more securely locked to the holder.
(4) The said cover is provided with the press part which elastically presses the upper surface of the laminated body which consists of the said bus-bar and the said insulating board. The laminated body which consists of a bus-bar and an insulating board can be hold | maintained without rattling in the holding groove | channel of a holder.
(5) The cover is constituted by a plurality of divided parts. When many functional parts such as a lock mechanism and a pressing part are provided for the cover, the molding die itself can be easily formed.

本発明によれば、組立工程の簡略化を図った集中配電部材を提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, the concentrated power distribution member which aimed at the simplification of an assembly process can be provided.

本発明の一実施形態に係る集中配電部材の分解斜視図1 is an exploded perspective view of a concentrated power distribution member according to an embodiment of the present invention. バスバー本体の平面図Top view of the busbar body バスバーの平面図Top view of bus bar 図３のＡ−Ａ線断面図AA line sectional view of FIG. 図３のＢ−Ｂ線断面図BB sectional view of FIG. 接続端子の側面図Side view of connection terminal 同平面図Plan view 同背面図Rear view ３層のバスバーの配設構造を示す斜視図The perspective view which shows the arrangement structure of a three-layer bus bar 同平面図Plan view 絶縁板の平面図Top view of insulation plate ホルダの平面図Top view of holder カバーの平面図Top view of cover 同正面図Front view 同側面図Side view 集中配電部材の組立完了状態の平面図Plan view of assembled state of centralized power distribution member 図１６のＣ−Ｃ線断面図CC sectional view of FIG. 図１６のＤ−Ｄ線断面図DD sectional view of FIG. 図１６のＥ−Ｅ線断面図EE sectional view of FIG.

＜実施形態＞
本発明の一実施形態を図１ないし図１９に基づいて説明する。
本実施形態のモータは、ハイブリッド電気自動車に搭載される３相交流６極対のブラシレスモータであり、エンジンとトランスミッションとの間の狭い空間に配置され、エンジンの水平なクランクシャフトに同軸に連結されたロータ（図示せず）と、ロータを同心状に包囲するリング状のステータ（図示せず）と、ステータを同心状に包囲するリング状の集中配電部材Ｓとを備えて構成される。ステータは、コアに巻き線を施すことによって構成された複数の磁極（図示せず）によって構成され、磁極は、ロータと同心の円周に沿って一定ピッチで配置されており、各磁極からは巻き線の両端部が導出されている。 <Embodiment>
An embodiment of the present invention will be described with reference to FIGS.
The motor of the present embodiment is a three-phase AC six-pole brushless motor mounted on a hybrid electric vehicle, is disposed in a narrow space between the engine and the transmission, and is coaxially connected to the horizontal crankshaft of the engine. A rotor (not shown), a ring-shaped stator (not shown) concentrically surrounding the rotor, and a ring-shaped concentrated power distribution member S surrounding the stator concentrically. The stator is composed of a plurality of magnetic poles (not shown) formed by winding the core, and the magnetic poles are arranged at a constant pitch along a circumference concentric with the rotor. Both ends of the winding are derived.

集中配電部材Ｓは、ステータの巻き線に電力を供給するためのものであって、図１に示すように、３個のバスバー１０と、２個の絶縁板４０と、これらを積層して収容するホルダ５０と、ホルダ５０の開口面に被着される５個のカバー７０とから構成されている。また、各バスバー１０にはそれぞれ、１個の給電端子２０と、６個ずつの巻き線との接続端子３０が備えられている。   The central power distribution member S is for supplying electric power to the winding of the stator, and as shown in FIG. 1, the three bus bars 10, the two insulating plates 40, and these are stacked and accommodated. Holder 50 and five covers 70 to be attached to the opening surface of the holder 50. Further, each bus bar 10 is provided with one power supply terminal 20 and connection terminals 30 for six windings.

各構成部品について説明する。バスバー１０は、バスバー本体１１と、給電端子２０及び接続端子３０とが、予め別体として形成されている。バスバー本体１１は、図２及び図４に示すように、断面方形の帯状基材１２が、所定長さごとに所定角度（１６０°）をなして幅方向に曲げられることにより、正１８角形の環状に形成される。ただし、正１８角形の１８辺のうち終端側の２辺は切除され、また残った終端の１辺は、正規長さの１／３程度の短寸に留められている。   Each component will be described. In the bus bar 10, the bus bar main body 11, the power supply terminal 20 and the connection terminal 30 are formed separately in advance. As shown in FIGS. 2 and 4, the bus bar body 11 has a regular octagonal shape when the belt-shaped base material 12 having a square cross section is bent in the width direction at a predetermined angle (160 °) for each predetermined length. It is formed in an annular shape. However, of the 18 sides of the regular octagon, 2 sides on the end side are cut off, and the remaining 1 side of the end side is held to a short length of about 1/3 of the normal length.

バスバー本体１１の帯状基材１２はより具体的には、金属線材の引抜加工や圧延加工、あるいは金属平板を所定幅に切断することによって形成されており、同帯状基材１２が所定寸法ずつ送られつつ、１６０°の角度をなして曲げられることにより、上記のように辺の一部が欠落した正１８角形の環状に形成されている。このように、多角形状（正１８角形）に曲げ形成した場合は、例えば帯状基材１２を幅方向に円環状に曲げ形成する場合と比べて、形状精度が高く取れ、すなわち真円が出しやすいという利点がある。   More specifically, the strip-shaped base material 12 of the bus bar body 11 is formed by drawing or rolling a metal wire, or cutting a metal flat plate into a predetermined width. However, by being bent at an angle of 160 °, it is formed into a regular octagonal ring with a part of the side missing as described above. As described above, when the polygonal shape (regular octagonal) is bent and formed, the shape accuracy can be increased, that is, a perfect circle can be easily formed, compared to the case where the belt-shaped substrate 12 is bent and formed in an annular shape in the width direction. There is an advantage.

給電端子２０は、給電用電線の端末に設けられた端子金具（図示せず）とボルト締めによって結合されるものであって、各バスバー１０について１個が備えられる。給電端子２０は、バスバー本体１１の厚さにほぼ等しい厚さの金属平板をプレス加工して、所定の打ち抜き、曲げ等を施すことで形成されており、全体としては、図３及び図４に示すように、幅広で側面視がクランク状をなすように形成されている。   The power supply terminal 20 is connected to a terminal fitting (not shown) provided at the terminal of the power supply electric wire by bolting, and one power supply terminal 20 is provided for each bus bar 10. The power supply terminal 20 is formed by pressing a metal flat plate having a thickness substantially equal to the thickness of the bus bar main body 11 and performing predetermined punching, bending, and the like. As shown, it is formed so that it is wide and has a crank shape when viewed from the side.

より詳細には、取付板２１の先端から縦板２２が立ち上がり形成され、同縦板２２の上端から接続板２３が直角曲げされて形成されている。取付板２１には、基端側の下面に溶接部となる第１接合凹面２４が段差状に形成され、第１接合凹面２４は、バスバー本体１１を構成する帯状基材１２の幅よりも少し小さい奥行寸法を有するとともに、同帯状基材１２の厚さの半分程度の深さ寸法を有する位置に形成されている。
接続板２３には、ボルト挿通孔２５が開口されているとともに、図９に示すように、先端縁の両端から、後記するナット５７の外れ止めに機能する係止爪２６が下向きに形成されている。 More specifically, the vertical plate 22 rises from the tip of the mounting plate 21, and the connection plate 23 is bent at a right angle from the upper end of the vertical plate 22. The mounting plate 21 has a first joint concave surface 24 that is a welded portion formed on the lower surface on the base end side in a step shape, and the first joint concave surface 24 is slightly smaller than the width of the strip-shaped base material 12 that constitutes the bus bar body 11. In addition to having a small depth dimension, it is formed at a position having a depth dimension that is about half the thickness of the band-shaped substrate 12.
A bolt insertion hole 25 is opened in the connection plate 23, and as shown in FIG. 9, a locking claw 26 that functions to prevent a nut 57 to be described later is formed downward from both ends of the tip edge. Yes.

接続端子３０は、上記した給電端子２０の素材となる金属平板と同じ金属平板をプレス加工して、所定の打ち抜き、曲げ等を施すことで形成されており、図５ないし図８にも示すように、取付板３１の先端から縦板３２が立ち上がり形成され、この縦板３２の一方の側縁から、巻き線の端部を接続するべく接続板３３が折り返し状に形成されている。取付板３１における基端側の下面には、同じく溶接部となる第２接合凹面３４が形成されている。同第２接合凹面３４の奥行寸法と深さ寸法も、上記した給電端子２０の取付板２１の第１接合凹面２４と同じである。   The connection terminal 30 is formed by pressing the same metal flat plate as the material of the power supply terminal 20 and performing predetermined punching, bending, etc., as shown in FIGS. Further, a vertical plate 32 rises from the tip of the mounting plate 31, and a connection plate 33 is formed in a folded shape from one side edge of the vertical plate 32 so as to connect the end of the winding. A second joint concave surface 34 that is also a welded portion is formed on the lower surface of the base plate side of the mounting plate 31. The depth dimension and depth dimension of the second joint concave surface 34 are also the same as those of the first joint concave surface 24 of the mounting plate 21 of the power supply terminal 20 described above.

バスバー本体１１には、１個の給電端子２０と、６個の接続端子３０が組み付けられている。詳細には、図３に示すように、給電端子２０は、バスバー本体１１における始端側から９番目の縁辺部１３IXの長さ方向の中央に、接続板２３を外側に向けた姿勢で配され、図４に示すように、取付板２１の第１接合凹面２４が同縁辺部１３IXの上面に嵌められた状態において、抵抗溶接によって結合されている。なお以下では、バスバー本体１１の縁辺部について、その位置を特定する場合には符号「１３」に添え字を付して区別し、区別しない場合は、符号「１３」を付して説明する。   One power supply terminal 20 and six connection terminals 30 are assembled to the bus bar main body 11. Specifically, as shown in FIG. 3, the power feeding terminal 20 is arranged in the center in the length direction of the ninth edge portion 13IX from the start end side in the bus bar main body 11 with the connection plate 23 facing outward, As shown in FIG. 4, the first joining concave surface 24 of the mounting plate 21 is joined by resistance welding in a state where the first joining concave surface 24 is fitted to the upper surface of the edge portion 13IX. In the following description, the position of the edge portion of the bus bar main body 11 is identified by adding a suffix “13” when specifying the position thereof, and when not distinguished, the reference numeral “13” is added.

接続端子３０は、同図３に示すように、バスバー本体１１における始端側から１，４，７，１０及び１３番目の縁辺部１３Ｉ，１３IV，１３VII，１３Ｘ及び１３XIIIの始端側の位置、並びに終端の短寸の縁辺部１３XVIの計６箇所において、それぞれ接続板３３を内側に向けた姿勢で配され、図５に示すように、取付板３１の第２接合凹面３４が、それらの縁辺部１３の上面に嵌められた状態において、同じく抵抗溶接によって結合されている。
このような同一形状になるバスバー１０が、３個備えられる。 As shown in FIG. 3, the connection terminal 30 is located at the start end side of the first, fourth, seventh, tenth and thirteenth edge portions 13I, 13IV, 13VII, 13X and 13XIII from the start end side in the bus bar body 11, and the terminal end. 6 are arranged in such a posture that the connection plate 33 faces inward, and the second joining concave surface 34 of the mounting plate 31 is provided on the edge portion 13 as shown in FIG. In the state of being fitted on the upper surface of each other, they are also joined by resistance welding.
Three bus bars 10 having the same shape are provided.

上記した３個のバスバー１０は、詳しくは後記するように、２０°ずつ回動姿勢をずらした形態において同軸上に積層配置され（図９参照）、このとき全体の平面視では、図１０に示すように、一の縁辺部の一部のみが欠落した（欠落部分１４）正１８角形の環状をなす。そして、各バスバー１０に設けられた６個ずつ合計１８個の接続端子３０が、同一円周上において２０°ずつの等角度間隔を空けて配置される。また、各バスバー１０の給電端子２０ａ〜２０ｃは、環形における欠落部分１４とは中心を挟んだほぼ反対側の位置において、同じく２０°ずつの角度間隔を開けてまとまって配置されるようになっている。   As described in detail later, the above-mentioned three bus bars 10 are stacked on the same axis in a form in which the rotation posture is shifted by 20 ° (see FIG. 9). As shown in the figure, a regular octagonal ring is formed in which only a part of one edge is missing (missing portion 14). Then, a total of 18 connection terminals 30 provided on each bus bar 10 are arranged at equal angular intervals of 20 ° on the same circumference. In addition, the power supply terminals 20a to 20c of each bus bar 10 are arranged together with an angular interval of 20 ° at substantially the opposite side of the ring-shaped missing portion 14 from the center. Yes.

上記のように積層配置されるバスバー１０の間には、それぞれ絶縁板４０が介装されるようになっている。絶縁板４０は合成樹脂製であって、図１１にも示すように、バスバー本体１１と同じ径において、正１８角形の完全な（欠落部分のない）環状に形成されている。絶縁板４０は、バスバー本体１１より幅広で、かつバスバー本体１１の２倍程度の厚さを備えている。
絶縁板４０の上面における幅方向の中央部には、バスバー本体１１をほぼ緊密にかつ面一に嵌めることができる嵌合溝４１が形成されている。 Insulating plates 40 are interposed between the bus bars 10 arranged in a stacked manner as described above. The insulating plate 40 is made of a synthetic resin, and as shown in FIG. The insulating plate 40 is wider than the bus bar body 11 and has a thickness about twice that of the bus bar body 11.
A fitting groove 41 capable of fitting the bus bar main body 11 almost tightly and flush with each other is formed at the center in the width direction on the upper surface of the insulating plate 40.

上記のように、各絶縁板４０は、３個のバスバー１０のそれぞれの間に介装されるが、絶縁板４０の上面側では、図１１及び図１に示すように、上側に配されるバスバー１０に結合された６個の接続端子３０と対応する各縁辺部４３において、嵌合溝４１の内周側の側壁に、同接続端子３０の取付板３１の下半分を嵌めて逃がす内逃がし溝４５が切り欠き形成されているとともに、所定の１本の縁辺部４３ａでは、嵌合溝４１の外周側の側壁に、同じく上側に配されるバスバー１０に結合された給電端子２０の取付板２１の下半分を嵌めて逃がす外逃がし溝４６が形成されている。   As described above, each insulating plate 40 is interposed between each of the three bus bars 10, but on the upper surface side of the insulating plate 40, as shown in FIGS. In each of the edge portions 43 corresponding to the six connection terminals 30 coupled to the bus bar 10, an inner relief for fitting the lower half of the attachment plate 31 of the connection terminal 30 to the side wall on the inner peripheral side of the fitting groove 41 and releasing it. A groove 45 is formed in a notch, and a predetermined one edge portion 43a has a mounting plate for the power supply terminal 20 coupled to the bus bar 10 disposed on the upper side wall of the fitting groove 41 on the outer peripheral side wall. An outer relief groove 46 is formed in which the lower half of 21 is fitted and escaped.

また、絶縁板４０の下面側では、下側に配されるバスバー１０に結合された６個の接続端子３０と対応する各縁辺部４３において、図１９に示すように、同接続端子３０の取付板３１の上半分を嵌めて逃がす内逃がし凹部４７が形成されているとともに、所定の１本の縁辺部４３ａにおいて、図１８に示すように、同じく下側に配されるバスバー１０に結合された給電端子２０の取付板２１の上半分を嵌めて逃がす外逃がし凹部４８が形成されている。   In addition, on the lower surface side of the insulating plate 40, as shown in FIG. 19, the connection terminals 30 are attached at the respective edge portions 43 corresponding to the six connection terminals 30 coupled to the bus bar 10 disposed on the lower side. An inner escape recess 47 is formed in which the upper half of the plate 31 is fitted and escaped, and at one predetermined edge portion 43a, as shown in FIG. 18, it is coupled to the bus bar 10 also arranged on the lower side. An escape recess 48 is formed in which the upper half of the attachment plate 21 of the power supply terminal 20 is fitted and escaped.

ホルダ５０は合成樹脂製であって、図１２に示すように、バスバー本体１１と同じ径を有する正１８角形の完全な環状に形成されている。このホルダ５０には、上面開口の保持溝５１が形成されており、同保持溝５１内に、３個のバスバー１０と２個の絶縁板４０とが交互に積層された状態（適宜に積層体６５という）で嵌合されて保持されるようになっている。
ホルダ５０の保持溝５１における溝底には、図１７に示すように、最下層のバスバー１０におけるバスバー本体１１をほぼ緊密にかつ面一に嵌めることができる嵌合溝５２が形成されている。 The holder 50 is made of a synthetic resin, and is formed in a regular octagonal complete annular shape having the same diameter as the bus bar body 11 as shown in FIG. The holder 50 is formed with a holding groove 51 having an opening on the upper surface. In the holding groove 51, three bus bars 10 and two insulating plates 40 are alternately laminated (as appropriate, a laminated body). 65) and is held.
As shown in FIG. 17, the groove 50 in the holding groove 51 of the holder 50 is formed with a fitting groove 52 that can fit the bus bar body 11 in the lowermost bus bar 10 almost tightly and flush with each other.

ホルダ５０の所定の各縁辺部５３における保持溝５１の内側の側壁には、各層のバスバー１０に設けられた接続端子３０の取付板３１が上方から挿入される縦溝５４ａ〜５４ｃが形成されている。この縦溝５４ａ〜５４ｃは、接続端子３０の高さ位置が３段階あることに対応して、深さが３段階に分けて形成されている。   On the inner side wall of the holding groove 51 in each predetermined edge portion 53 of the holder 50, vertical grooves 54a to 54c into which the mounting plates 31 of the connection terminals 30 provided on the bus bars 10 of the respective layers are inserted from above are formed. Yes. The vertical grooves 54a to 54c are formed in three stages in depth corresponding to the three positions of the connection terminal 30 in height.

ホルダ５０における隣接した所定の３縁辺部５３ａ〜５３ｃの外面には、各層のバスバー１０に設けられた給電端子２０ａ〜２０ｃをそれぞれ受ける端子台５５ａ〜５５ｃが、外側に向けて突出形成されている。端子台５５ａ〜５５ｃは、給電端子２０における縦板２２から接続板２３を受けることが可能となっており、給電端子２０の高さ位置が３段階あることに対応して、高さが３段階に分けて形成されている。
各端子台５５ａ〜５５ｃには、上面並びに外面に開口したナット装着溝５６が形成されており、同ナット装着溝５６には、外形四角形をなすナット５７が回り止めされた形態で挿入されるようになっている。ナット装着溝５６の溝底には、ボルト挿通孔５８が開口されている。 Terminal blocks 55a to 55c that respectively receive power supply terminals 20a to 20c provided on the bus bars 10 of the respective layers are formed on the outer surfaces of adjacent three adjacent edge portions 53a to 53c of the holder 50 so as to protrude outward. . The terminal blocks 55a to 55c can receive the connection plate 23 from the vertical plate 22 of the power supply terminal 20, and the height of the power supply terminal 20 is three levels corresponding to the three positions. It is formed separately.
Each terminal block 55a to 55c is formed with a nut mounting groove 56 that opens to the upper surface and the outer surface, and a nut 57 that forms an outer shape square is inserted in the nut mounting groove 56 in a form that is prevented from rotating. It has become. A bolt insertion hole 58 is opened at the groove bottom of the nut mounting groove 56.

ホルダ５０の上面開口には、５個のカバー７０が被着されるようになっており、図１２及び図１６に示すように、ホルダ５０の縁辺部５３のうち、中央の端子台５５ｂが形成された縁辺部５３と、同縁辺部５３から両側に２個ずつを開けた２個の縁辺部５３の合計５箇所に被着されるようになっている（被着位置６０）。
カバー７０は合成樹脂製であって、図１３ないし図１５にも示すように、ホルダ５０の一の縁辺部５３からその両隣りの縁辺部５３の一部を覆うべく、直線部７１の両端に短寸の屈曲部７２を設けた形状である。 Five covers 70 are attached to the upper surface opening of the holder 50, and as shown in FIGS. 12 and 16, a central terminal block 55 b is formed in the edge 53 of the holder 50. It is attached to a total of five places, that is, the edge portion 53 and two edge portions 53 that are opened on the both sides from the edge portion 53 (attachment position 60).
The cover 70 is made of synthetic resin. As shown in FIGS. 13 to 15, as shown in FIGS. 13 to 15, the cover 70 is attached to both ends of the linear portion 71 so as to cover a part of the adjacent edge portion 53 from one edge portion 53 of the holder 50. This is a shape in which a short bent portion 72 is provided.

各カバー７０には、外縁側に２本、内縁側に２本の合計４本の弾性変位可能なロック枠片７３が、下向きに形成されている。外縁側の２本のロック枠片７３ａは、直線部７１の両端に寄った位置に形成され、内縁側の２本のロック枠片７３ｂは、直線部７１と屈曲部７２との繋ぎ部に形成されている。
一方、ホルダ５０におけるカバー７０の各被着位置６０には、各ロック枠片７３ａ，７３ｂに嵌って係止するロック突部６１が、外面側に２個、内面側に２個の合計４個が形成されている。外面側の２個のロック突部６１は、一の縁辺部５３の両端に寄った位置に形成され、内面側の２個のロック突部６１は、一の縁辺部５３と両隣りの縁辺部５３との間の屈曲された繋ぎ部にそれぞれ形成されている。 Each cover 70 is formed with a total of four elastically displaceable lock frame pieces 73 downward on the outer edge side and two on the inner edge side. The two lock frame pieces 73a on the outer edge side are formed at positions close to both ends of the straight portion 71, and the two lock frame pieces 73b on the inner edge side are formed at the connecting portion between the straight portion 71 and the bent portion 72. Has been.
On the other hand, at each attachment position 60 of the cover 70 in the holder 50, there are a total of four lock projections 61 that are fitted and locked to the lock frame pieces 73a and 73b, two on the outer surface side and two on the inner surface side. Is formed. The two lock projections 61 on the outer surface side are formed at positions close to both ends of the one edge portion 53, and the two lock projections 61 on the inner surface side are the edge portions 53 adjacent to the one edge portion 53. 53 is formed at each of the bent joints between the two.

なお、内縁側のロック枠片７３ｂは、ホルダ５０における一の縁辺部５３と両隣りの縁辺部５３との繋ぎ部といった、平面視で鈍角な谷の部分に挿入されるのであるから、同内側のロック枠片７３ｂの内面は、上記の谷形状に整合した山形に形成されている。
また、外面側のロック突部６１の両側には、ロック枠片７３ａを挿入案内するガイド６２が形成されている。 The inner edge side lock frame piece 73b is inserted into a valley portion having an obtuse angle in plan view, such as a connecting portion between one edge portion 53 and both adjacent edge portions 53 in the holder 50. The inner surface of the lock frame piece 73b is formed in a mountain shape that matches the valley shape described above.
Further, guides 62 for inserting and guiding the lock frame piece 73a are formed on both sides of the lock projection 61 on the outer surface side.

カバ一７０の直線部７１における長さ方向の中央部には、ホルダ５０の保持溝５１内に嵌合された積層体６５の上面を弾性的に押圧する押圧板７５が形成されている。押圧板７５は、直線部７１の長さ方向に沿った細長い形状をなして両持ち状に切り出し形成されており、長さ方向の中央部が上下方向に撓み変形可能となっており、同押圧板７５の長さ方向の中央部の下面に、押圧突条７６が幅方向に沿って形成されている。   A pressing plate 75 that elastically presses the upper surface of the laminated body 65 fitted in the holding groove 51 of the holder 50 is formed at the central portion in the length direction of the linear portion 71 of the cover 70. The pressing plate 75 has a long and narrow shape along the length direction of the straight portion 71 and is cut and formed in a double-sided manner. The central portion in the length direction can be bent and deformed in the vertical direction. A pressing protrusion 76 is formed along the width direction on the lower surface of the central portion of the plate 75 in the length direction.

続いて、本実施形態に係る集中配電部材Ｓの組立手順の一例を説明する。
バスバー１０については、上述したように、一部が欠落した形態の正１８角形の環状に形成したバスバー本体１１の所定位置に、１個の給電端子２０が外向きの姿勢で、６個の接続端子３０が内向きの姿勢でそれぞれ配されて、抵抗溶接によって結合される。バスバー本体１１は断面方形をなしており、給電端子２０の取付板２１の第１接合凹面２４や、接続端子３０の取付板３１の第２接合凹面３４が、バスバー本体１１の平面状の上面に対してべた当たりし、すなわち接触面積を広く取った状態で接合できることにより、高精度に姿勢を定めて溶接結合することが可能となる。 Then, an example of the assembly procedure of the concentrated power distribution member S according to the present embodiment will be described.
As for the bus bar 10, as described above, one connection terminal 20 is placed in a predetermined position on the bus bar body 11 formed in a regular octagonal annular shape with a part missing, and six connections are made in an outward posture. The terminals 30 are respectively arranged in an inward posture and are joined by resistance welding. The bus bar body 11 has a square cross section, and the first joint concave surface 24 of the mounting plate 21 of the power supply terminal 20 and the second joint concave surface 34 of the mounting plate 31 of the connection terminal 30 are formed on the planar upper surface of the bus bar main body 11. On the other hand, it is possible to perform welding joint with a highly accurate posture determined by being able to join with a sticky contact, that is, with a large contact area.

組み立てに当たっては、上記のような３個のバスバー１０と、２個の絶縁板４０と、ホルダ５０と、５個のカバー７０が準備される。
まず、ホルダ５０が組立台上に設置され、例えば図１に示すように、３個の端子台５５ａ〜５５ｃが手前側を向いた姿勢で設置され、各端子台５５ａ〜５５ｃのナット装着溝５６にナット５７が挿入される。 In assembling, three bus bars 10 as described above, two insulating plates 40, a holder 50, and five covers 70 are prepared.
First, the holder 50 is installed on the assembly table. For example, as shown in FIG. 1, the three terminal blocks 55a to 55c are installed in a posture facing the front side, and the nut mounting grooves 56 of the terminal blocks 55a to 55c are arranged. A nut 57 is inserted into the nut.

この状態からホルダ５０の保持溝５１に対し、３層のうち下の層に来るバスバー１０が所定の回動姿勢、すなわち同バスバー１０に設けられた給電端子２０ａが、図１に示されたホルダ５０における手前側から見た一番右の端子台５５ａの直上に来る回動姿勢を取って挿入される。
同バスバー１０は、６個の内向きの接続端子３０が一番深い縦溝５４ａに嵌って逃がされつつ挿入され、バスバー本体１１が保持溝５１の溝底の嵌合溝４２内に面一に嵌められる。また同バスバー１０に外向きに設けられた給電端子２０ａの接続板２３が一番右側の端子台５５ａに載せられ、同接続板２３の先端の係止爪２６がナット装着溝５６の入口の両端を塞ぐことでナット５７が外れ止めされ、併せて接続板２３のボルト挿通孔２５がナット５７の雌ねじと整合する。 From this state, the bus bar 10 that comes to the lower layer of the three layers with respect to the holding groove 51 of the holder 50 has a predetermined rotation posture, that is, the power supply terminal 20a provided on the bus bar 10 is the holder shown in FIG. 50 is inserted in a turning posture coming right above the rightmost terminal block 55a as viewed from the front side.
The bus bar 10 is inserted while the six inward connection terminals 30 are inserted into the deepest vertical groove 54 a while being released, and the bus bar body 11 is flush with the fitting groove 42 at the bottom of the holding groove 51. Fitted. Further, the connection plate 23 of the power supply terminal 20 a provided outwardly on the bus bar 10 is placed on the rightmost terminal block 55 a, and the locking claws 26 at the tip of the connection plate 23 are at both ends of the inlet of the nut mounting groove 56. As a result, the nut 57 is prevented from coming off, and the bolt insertion hole 25 of the connection plate 23 is aligned with the female screw of the nut 57.

次に、下側の絶縁板４０が所定の回動姿勢、すなわち絶縁板４０の下面に形成された外逃がし凹部４８が、先に挿入されたバスバー１０の給電端子２０ａの直上に来る回動姿勢を取って挿入される。同絶縁板４０は、下面の外逃がし凹部４８に給電端子２０ａの取付板２１を嵌めて逃がし、また同じく下面に形成された６個の内逃がし凹部４７に、対応する接続端子３０の取付板３１を嵌めて逃がしつつ、図１７ないし図１９に示すように、その下面を保持溝５１の溝底に密着させて載せられる。   Next, the lower insulating plate 40 has a predetermined rotational posture, that is, the rotational posture in which the escape recess 48 formed on the lower surface of the insulating plate 40 comes directly above the power supply terminal 20a of the bus bar 10 previously inserted. Is taken and inserted. The insulating plate 40 is fitted with the mounting plate 21 of the power supply terminal 20a in the outer relief recess 48 on the lower surface, and the six inner escape recesses 47 also formed on the lower surface are attached to the corresponding mounting plates 31 of the connection terminals 30. 17 to 19, the lower surface is placed in close contact with the groove bottom of the holding groove 51 as shown in FIGS.

続いて、中間層のバスバー１０が所定の回動姿勢、すなわち同バスバー１０に設けられた給電端子２０ｂが、図１に示されたホルダ５０における中央の端子台５５ｂの直上に来る回動姿勢を取って挿入される。
同バスバー１０は、６個の内向きの接続端子３０が中間深さの縦溝５４ｂに嵌って逃がされつつ挿入され、バスバー本体１１が、その下面側に挿入された絶縁板４０の上面に形成された嵌合溝４１内に面一に嵌められる。また給電端子２０ｂの接続板２３が中央の端子台５５ｂに載せられ、同じくナット５７の外れ止めがなされた上で、ボルト挿通孔２５がナット５７の雌ねじと整合した状態となる。 Subsequently, the intermediate layer bus bar 10 has a predetermined rotation posture, that is, the rotation posture in which the power supply terminal 20b provided on the bus bar 10 comes directly above the central terminal block 55b in the holder 50 shown in FIG. Taken and inserted.
The bus bar 10 is inserted while the six inward connection terminals 30 are fitted into the longitudinal grooves 54b of the intermediate depth and escaped, and the bus bar main body 11 is inserted on the upper surface of the insulating plate 40 inserted on the lower surface side thereof. The fitting groove 41 is formed so as to be flush with each other. In addition, the connection plate 23 of the power supply terminal 20 b is placed on the central terminal block 55 b and the nut 57 is similarly prevented from coming off, and the bolt insertion hole 25 is aligned with the female screw of the nut 57.

次に、上側の絶縁板４０が、下側の絶縁板４０と同様に、下面に形成された外逃がし凹部４８を、挿入されている中間層のバスバー１０の給電端子２０ｂの直上に来る回動姿勢を取って挿入される。同絶縁板４０は、下面の外逃がし凹部４８に給電端子２０ｂの取付板２１を嵌めて逃がし、また６個の内逃がし凹部４７に、対応する接続端子３０の取付板３１を嵌めて逃がしつつ、図１７ないし図１９に示すように、その下面をバスバー本体１１を挟んで下側の絶縁板４０の上面に密着させて載せられる。   Next, as with the lower insulating plate 40, the upper insulating plate 40 turns the escape recess 48 formed on the lower surface directly above the power supply terminal 20b of the inserted bus bar 10 in the intermediate layer. It is inserted taking a posture. The insulating plate 40 escapes by fitting the attachment plate 21 of the power supply terminal 20b into the outer relief recess 48 on the lower surface, and fitting the attachment plate 31 of the corresponding connection terminal 30 into the six inner relief recesses 47, As shown in FIGS. 17 to 19, the lower surface is placed in close contact with the upper surface of the lower insulating plate 40 with the bus bar body 11 in between.

そののち、上の層のバスバー１０が、同バスバー１０に設けられた給電端子２０ｃが、図１に示されたホルダ５０における左側の端子台５５ｃの直上に来る回動姿勢を取って挿入される。
同バスバー１０は、６個の内向きの接続端子３０が最小深さの縦溝５４ｃに嵌って逃がされつつ挿入され、バスバー本体１１が、その下面側に挿入された上側の絶縁板４０の嵌合溝４１内に面一に嵌められる。また給電端子２０ｃの接続板２３が左側の端子台５５ｃに載せられ、同じくナット５７の外れ止めがなされた上で、ボルト挿通孔２５がナット５７の雌ねじと整合する。
以上により、３個のバスバー１０と２個の絶縁板４０とが交互に積層された積層体６５が構成され、この積層体６５がホルダ５０の保持溝５１内に収容された形態となる。 After that, the bus bar 10 in the upper layer is inserted in a rotating posture in which the power supply terminal 20c provided on the bus bar 10 comes directly above the left terminal block 55c in the holder 50 shown in FIG. .
The bus bar 10 is inserted while the six inward connection terminals 30 are fitted into the vertical grooves 54c having the minimum depth and are escaped, and the bus bar body 11 is inserted into the lower insulating plate 40. The fitting groove 41 is fitted flush. Further, the connection plate 23 of the power supply terminal 20 c is placed on the terminal block 55 c on the left side, and the nut 57 is prevented from coming off, and the bolt insertion hole 25 is aligned with the female screw of the nut 57.
As described above, the laminated body 65 in which the three bus bars 10 and the two insulating plates 40 are alternately laminated is configured, and the laminated body 65 is accommodated in the holding groove 51 of the holder 50.

最後に、ホルダ５０の上面開口における所定の５箇所の被着位置６０に、それぞれカバー７０が装着される。各カバー７０は、内外のロック枠片７３を対応するロック突部６１に当てて撓み変位させつつ押し込まれ、保持溝５１の側縁の上端に当たったところで、ロック枠片７３が復動変位してロック突部６１に嵌ることで抜け止めされて装着される。併せて、各カバー７０の押圧板７５に設けられた押圧突条７６が積層体６５の上面を弾性的に押圧し、積層体６５が保持溝５１の溝底に押し付けられる。結果、積層体６５が保持溝５１内に強固に保持された状態で収容される。
これにより、集中配電部材Ｓの組み立てが完了する。 Finally, the cover 70 is attached to each of five predetermined attachment positions 60 in the upper surface opening of the holder 50. Each cover 70 is pushed in while the inner and outer lock frame pieces 73 are applied to the corresponding lock protrusions 61 while being bent and displaced, and when the cover 70 hits the upper end of the side edge of the holding groove 51, the lock frame piece 73 is moved backward. By being fitted to the lock protrusion 61, it is prevented from coming off and attached. At the same time, the pressing protrusion 76 provided on the pressing plate 75 of each cover 70 elastically presses the upper surface of the laminated body 65, and the laminated body 65 is pressed against the groove bottom of the holding groove 51. As a result, the laminated body 65 is accommodated in a state of being firmly held in the holding groove 51.
Thereby, the assembly of the concentrated power distribution member S is completed.

上記のように組み立てられた集中配電部材Ｓは、ブラシレスモータにおけるステータの回りに配設され、同集中配電部材Ｓの内周側に設けられた１８個の接続端子３０の接続板３３に対し、ステータに設けられた対応する巻き線の一端部がフュージング等により接続される。なお、各巻き線の他端部は、各相ごとに共通の導電部材に接続される。
一方、集中配電部材Ｓの外周側にまとめて設けられた３個の端子台５５ａ〜５５ｃには、対応する給電用電線の端末に設けられたＬＡ端子等の端子金具（図示せず）がそれぞれ重ねられ、同端子金具から給電端子２０ａ〜２０ｃの接続板２３に挿通されたボルトをナット５７に螺合して締め付けることで、各給電端子２０ａ〜２０ｃと対応する端子金具とが接続されるようになっている。 The concentrated power distribution member S assembled as described above is disposed around the stator in the brushless motor and is connected to the connection plate 33 of the 18 connection terminals 30 provided on the inner peripheral side of the concentrated power distribution member S. One end of the corresponding winding provided on the stator is connected by fusing or the like. The other end of each winding is connected to a common conductive member for each phase.
On the other hand, terminal fittings (not shown) such as LA terminals provided at the terminals of the corresponding power feeding wires are respectively provided on the three terminal blocks 55a to 55c provided collectively on the outer peripheral side of the concentrated power distribution member S. Each of the power supply terminals 20a to 20c and the corresponding terminal metal fitting are connected to each other by tightening the bolts, which are overlapped and inserted into the connection plate 23 of the power supply terminals 20a to 20c from the same terminal metal fitting, into the nut 57. It has become.

以上説明したように本実施形態では、集中配電部材Ｓを組み立てるに当たり、ホルダ５０の保持溝５１内にバスバー１０と絶縁板４０とを交互に嵌合して積層したのち、最後にカバー７０を被着するだけで良いから、組立時間が大幅に短縮でき、ひいては製造コストの削減に寄与することが可能となる。
バスバー１０と絶縁板４０とを交互に積層してホルダ５０内に収容した状態において、バスバー本体１１の４周面が、ホルダ５０並びに絶縁板４０といった合成樹脂材で覆われることになるから、各層のバスバー１０間の絶縁を確実に図ることができる。 As described above, in the present embodiment, in assembling the concentrated power distribution member S, the bus bars 10 and the insulating plates 40 are alternately fitted and stacked in the holding grooves 51 of the holder 50, and finally the cover 70 is covered. Since it is only necessary to wear it, the assembly time can be greatly shortened, which in turn can contribute to the reduction of manufacturing costs.
In a state where the bus bar 10 and the insulating plate 40 are alternately stacked and accommodated in the holder 50, the four circumferential surfaces of the bus bar main body 11 are covered with a synthetic resin material such as the holder 50 and the insulating plate 40. Insulation between the bus bars 10 can be reliably achieved.

カバー７０には押圧板７５が設けられて積層体６５を弾性的に保持溝５１の溝底に押圧することができ、かつカバー７０は内外両側でロックされて強固に装着できるから、結果、積層体６５をホルダ５０の保持溝５１内でがたつきなく保持することができる。
また、カバー７０については、小型のものを複数個備えるようにしたから、ロック枠片７３や押圧板７５といった機能部位を形成する場合に、成形金型自体の形成がしやすくなる。 The cover 70 is provided with a pressing plate 75 so that the laminated body 65 can be elastically pressed against the groove bottom of the holding groove 51, and the cover 70 can be locked firmly on both the inner and outer sides, so that it can be firmly attached. The body 65 can be held in the holding groove 51 of the holder 50 without rattling.
Further, since the cover 70 is provided with a plurality of small ones, when forming a functional part such as the lock frame piece 73 or the pressing plate 75, the molding die itself can be easily formed.

＜他の実施形態＞
本発明は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような実施形態も本発明の技術的範囲に含まれる。
（１）上記実施形態では、バスバー（バスバー本体）と絶縁板とを重ねる場合に、絶縁板の上面に形成した嵌合溝にバスバー本体を嵌めるようにしたが、単に重ねるようにしてもよく、そのようなものも本発明の技術的範囲に含まれる。
（２）上記実施形態では、バスバーと絶縁板とによる積層体を実質的に結束するのに、ホルダにカバーを被着する手段を採用したが、カバーを備えることなく、別途備えた結束具で結束するようにしてもよい。
（３）カバーのロック機構の数は任意であり、内外いずれか一方のみであってもよい。
（４）カバーの大きさや数は任意に設定でき、また正１８角形の環状をなす一体物として形成されていてもよい。 <Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the above embodiment, when the bus bar (bus bar main body) and the insulating plate are stacked, the bus bar main body is fitted in the fitting groove formed on the upper surface of the insulating plate. Such a thing is also included in the technical scope of the present invention.
(2) In the above embodiment, the means for attaching the cover to the holder is used to substantially bind the laminated body of the bus bar and the insulating plate. However, without using the cover, You may make it bind.
(3) The number of cover locking mechanisms is arbitrary, and may be either the inside or the outside.
(4) The size and number of the cover can be arbitrarily set, and may be formed as a monolithic monolithic one.

（５）上記実施形態ではバスバーの数が３個の場合を例示したが、バスバーの数が２個、または４個以上の場合にも適用できる。
（６）上記実施形態では、１個のバスバーに設ける接続端子の数が６個である場合を例示したが、６個以外のものにも適用できる。
（７）バスバーにおけるバスバー本体は、モータの極対数等の条件に応じて任意の多角形の環状に形成することができる。
（８）上記実施形態では、バスバーとして、バスバー本体に対してこれとは別体に形成した給電端子と接続端子とを後付けした形態のものを例示したが、本発明は、バスバー本体に対して給電端子と接続端子とがを一体的に形成された形態のバスバーを用いる場合にも同様に適用できる。 (5) Although the case where the number of bus bars is three is illustrated in the above embodiment, the present invention can be applied to the case where the number of bus bars is two or four or more.
(6) In the above embodiment, the case where the number of connection terminals provided on one bus bar is six is exemplified, but the present invention can be applied to other than six.
(7) The bus bar body in the bus bar can be formed in an arbitrary polygonal ring according to conditions such as the number of pole pairs of the motor.
(8) In the above embodiment, as the bus bar, the bus bar main body is illustrated with a power supply terminal and a connection terminal formed separately from the bus bar main body. However, the present invention is directed to the bus bar main body. The present invention can be similarly applied to the case of using a bus bar in which a power feeding terminal and a connection terminal are integrally formed.

Ｓ…集中配電部材
１０…バスバー
１１…バスバー本体
２０，２０ａ，２０ｂ，２０ｃ…給電端子
３０…接続端子
４０…絶縁板
４１…嵌合溝
５０…ホルダ
５１…保持溝
５２…嵌合溝
６１…ロック突部（ロック機構）
６５…積層体
７０…カバー
７３，７３ａ，７３ｂ…ロック枠片（ロック機構）
７５…押圧板（押圧部） S ... Concentrated power distribution member 10 ... Bus bar 11 ... Bus bar body 20, 20a, 20b, 20c ... Feed terminal 30 ... Connection terminal 40 ... Insulating plate 41 ... Fitting groove 50 ... Holder 51 ... Holding groove 52 ... Fitting groove 61 ... Lock Projection (lock mechanism)
65 ... Laminated body 70 ... Cover 73, 73a, 73b ... Lock frame piece (lock mechanism)
75 ... Pressing plate (pressing part)

Claims (4)

車両用薄型ブラシレスモータを構成するステータの巻き線に電力を供給するための集中配電部材であって、
給電端子と、前記巻き線との接続端子とを備えた多角形の環状をなす複数のバスバーと、
前記バスバー間に介装される多角形の環状をなす合成樹脂製の絶縁板と、
前記バスバーと前記絶縁板とが厚さ方向に交互に積層された積層体を嵌合可能な保持溝を有する多角形の環状をなす合成樹脂製のホルダと、
が具備され、
かつ、前記ホルダの前記保持溝の開口を覆う合成樹脂製のカバーが備えられて、同カバーと前記ホルダとの間に弾性的なロック機構が設けられ、
前記カバーには、前記積層体の上面を積層方向に一括して弾性的に押圧する押圧部が設けられていることを特徴とする車両用薄型ブラシレスモータの集中配電部材。 A concentrated power distribution member for supplying power to a winding of a stator constituting a thin brushless motor for a vehicle,
A plurality of bus bars having a polygonal annular shape including a power supply terminal and a connection terminal with the winding,
An insulating plate made of synthetic resin having a polygonal ring interposed between the bus bars;
A holder made of synthetic resin having a polygonal annular shape having a holding groove capable of fitting a laminated body in which the bus bar and the insulating plate are alternately laminated in a thickness direction ;
Is provided ,
And a cover made of synthetic resin covering the opening of the holding groove of the holder is provided, and an elastic locking mechanism is provided between the cover and the holder,
The concentrated power distribution member of a thin brushless motor for a vehicle , wherein the cover is provided with a pressing portion that elastically presses the upper surface of the stacked body in the stacking direction . 前記カバーが、分割された複数個によって構成されていることを特徴とする請求項１記載の車両用薄型ブラシレスモータの集中配電部材。 2. The concentrated power distribution member for a thin brushless motor for a vehicle according to claim 1 , wherein the cover is constituted by a plurality of divided parts. 前記ロック機構が、前記ホルダの内外両周面に設けられていることを特徴とする請求項１または請求項２記載の車両用薄型ブラシレスモータの集中配電部材。 3. The concentrated power distribution member for a thin brushless motor for a vehicle according to claim 1 , wherein the lock mechanism is provided on both inner and outer peripheral surfaces of the holder. 前記絶縁板が前記バスバーよりも幅広かつ厚肉に形成され、同絶縁板の一面には前記バスバーを面一に嵌合可能な嵌合溝が形成されているとともに、前記ホルダの前記保持溝の溝底にも前記バスバーを面一に嵌合可能な嵌合溝が形成されていることを特徴とする請求項１ないし請求項３のいずれか一項に記載の車両用薄型ブラシレスモータの集中配電部材。 The insulating plate is formed wider and thicker than the bus bar, and a fitting groove capable of fitting the bus bar to the same surface is formed on one surface of the insulating plate, and the holding groove of the holder is formed. The centralized power distribution of the thin brushless motor for a vehicle according to any one of claims 1 to 3, wherein a fitting groove capable of fitting the bus bar flush with each other is formed at a groove bottom. Element.
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