JP5320431B2 - Rotating electric machine - Google Patents

Rotating electric machine Download PDF

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Publication number
JP5320431B2
JP5320431B2 JP2011099347A JP2011099347A JP5320431B2 JP 5320431 B2 JP5320431 B2 JP 5320431B2 JP 2011099347 A JP2011099347 A JP 2011099347A JP 2011099347 A JP2011099347 A JP 2011099347A JP 5320431 B2 JP5320431 B2 JP 5320431B2
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base
snap fit
diameter side
outer diameter
side snap
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JP2012231632A (en
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宙司 会田
憲悟 藤本
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a rotary electric machine including a connection terminal part capable of preventing reduction of an insulation gap between respective phase terminals, short-circuiting, etc., even excessive external force is applied to a power supply terminal connecting with the respective phase terminals where stator coil terminals of the rotary electric machine are connected. <P>SOLUTION: The rotary electric machine includes a connection terminal part 20 provided with a connection plate 2 which have terminals 1 by phases connected to a power supply terminals 4 inserted into a plurality of concentric grooves 2f molded out of insulating resin, and a base 3 which is molded out of insulating resin 6 fixed in contact with the connection plate 2 on the axially opposite side of the rotary electric machine 50 from the stator, and holds the power supply terminal 4. <P>COPYRIGHT: (C)2013,JPO&amp;INPIT

Description

この発明は、自動車等車輌に搭載される各種装置を駆動する回転電機に関するもので、特にコイル端子と外部給電端子をつなぐ電気的接続部の構造に係るものである。   The present invention relates to a rotating electrical machine that drives various devices mounted on a vehicle such as an automobile, and particularly relates to a structure of an electrical connection portion that connects a coil terminal and an external power feeding terminal.

従来の回転電機の固定子コイルのコイル端末の電気的接続部は、固定子の側部に配置したコイル接続部によって結線がなされている。すなわち、コイル接続体は絶縁材のホルダに設けた溝部に相別用導電部材や、同相用導電部材が配置されており、相別用導電部材や同相用導電部材とコイル端末をヒュージング等で接続することによって所定の結線がなされる構成が、また相別用導電部材に設けた接続端子には給電するための電源線が接続されていることが示されている（例えば、特許文献１）。   The electrical connection part of the coil terminal of the stator coil of the conventional rotating electrical machine is connected by the coil connection part arranged on the side part of the stator. That is, the coil connection body has a conductive member for phase separation or a conductive member for in-phase disposed in a groove provided in the holder of the insulating material. It is shown that a configuration in which a predetermined connection is made by connecting, and a power supply line for supplying power is connected to a connection terminal provided on the phase-specific conductive member (for example, Patent Document 1). .

特開２００３−３２４８８３号公報JP 2003-324883 A

上記特許文献１に示された技術は、絶縁材のホルダの溝によって回転電機の径方向の電気的絶縁が確保されている。一方、軸方向においては相別用導電部材と同相用導電部材との間は、空隙によって絶縁されている。この空隙は、車輌等の搭載作業時において、給電用の電源線を介して過度な外力が印加された場合に状態が変化し、充分な空隙が確保されず、絶縁特性が低下するケースが発生することがある。   In the technique disclosed in Patent Document 1, electrical insulation in the radial direction of the rotating electrical machine is ensured by the groove of the holder of the insulating material. On the other hand, in the axial direction, the phase-specific conductive member and the in-phase conductive member are insulated by a gap. This air gap changes when an excessive external force is applied via the power supply power line when mounting a vehicle or the like, and there is a case where sufficient air gap is not secured and insulation characteristics deteriorate. There are things to do.

この発明は、上記のような課題を解決するためになされたものであって、回転電機を車輌等の搭載作業時において、給電用の電源線を介して過度の外力が印加されたとしても、相別用導電部材と同相用導電部材との間の空隙の変化の発生を抑制可能な構造を備えた回転電機を提供する。   This invention has been made to solve the above-described problems, and even when an excessive external force is applied via a power supply power line during mounting work of a rotating electrical machine such as a vehicle, Provided is a rotating electrical machine having a structure capable of suppressing the occurrence of a change in the gap between a phase-specific conductive member and an in-phase conductive member.

この発明に係る回転電機は、固定子コイル端子と給電端子との間に介在する接続端子部
を備え、接続端子部には、絶縁性樹脂で成形され回転電機軸と同軸に複数の同心状の溝が
設けられ、該溝内に給電端子のＵ、Ｖ、Ｗ相につながるとともに、固定子コイル端子に接
続される各相別のターミナルが挿入された円環状の結線板と、絶縁性樹脂で成形され外径
部と内径部を有する平面円弧状をなし給電端子を保持するとともに、結線板の反固定子側
端面に接して固着されたベースとが設けられており、ベースの外径部には、所定の角度離れた２カ所に外径側スナップフィット係合部が、ベースの内径部には所定の角度より狭い角度離れた２カ所に内径側スナップフィット係合部が設けられており、結線板の内径部には、ベースの内径側スナップフィット係合部と係合する内径側スナップフィットが、外径部にはベースの外径側スナップフィット係合部と係合する外径側スナップフィットが設けられており、ベースが結線板の内径側スナップフィットおよび外径側スナップフィットによって係合されているものである。 A rotating electrical machine according to the present invention includes a connection terminal portion interposed between a stator coil terminal and a power supply terminal, and the connection terminal portion is formed of an insulating resin and is coaxial with the rotating electrical machine shaft. A groove is provided, connected to the U, V, and W phases of the power supply terminal in the groove, and an annular connection board in which a terminal for each phase connected to the stator coil terminal is inserted, and an insulating resin A flat circular arc shape having an outer diameter portion and an inner diameter portion is formed, and a power supply terminal is held, and a base fixed in contact with the end surface on the side opposite to the stator of the connection plate is provided, and the outer diameter portion of the base is provided. Are provided with outer-diameter side snap-fit engaging portions at two locations separated by a predetermined angle, and the inner diameter portion of the base is provided with inner-diameter side snap-fit engaging portions at two locations separated by an angle narrower than the predetermined angle, The inner diameter part of the base plate has a snap-flip on the inner diameter side of the base. The inner diameter side snap fit that engages with the base engagement portion, and the outer diameter portion is provided with the outer diameter side snap fit that engages with the outer diameter side snap fit engagement portion of the base. It is engaged by the inner diameter side snap fit and the outer diameter side snap fit.

この発明に係る回転電機は上記のような構成を備え、ベースと結線板とが固定されているので、ベースが給電板から離脱することがなく回転電機を車輌に搭載作業時に給電端子の内、例えばＵ相の給電端子を何らかの理由で強く引っ張る力が作用した場合であっても、このＵ相の給電端子につながる結線板の溝に挿入されたＵ相のターミナルが溝から浮き上がり、他のＶ相、Ｗ相のターミナル接続部と接触あるいは必要な絶縁空隙が確保できなくなる等の電気特性低下要因発生を防止可能となるという効果を奏する。 The rotating electrical machine according to the present invention has the above-described configuration, and since the base and the connection plate are fixed, the base does not come off from the power feeding plate, and the power feeding terminal is included in the power feeding terminal when mounting the rotating electrical machine on the vehicle. For example, even when a force that pulls the U-phase power supply terminal strongly for some reason is applied, the U-phase terminal inserted into the groove of the connection plate connected to the U-phase power supply terminal rises from the groove, and other V As a result, it is possible to prevent the occurrence of factors that deteriorate electrical characteristics such as contact with the phase and W-phase terminal connection portions or the inability to secure necessary insulation gaps.

実施の形態１の回転電機の接続端子部、固定子の断面を示す図である。It is a figure which shows the connection terminal part of the rotary electric machine of Embodiment 1, and the cross section of a stator. 実施の形態１の接続端子部を示す正面図および側面図である。FIG. 2 is a front view and a side view showing a connection terminal portion of the first embodiment. 実施の形態１のターミナルを結線板溝で保持している状態を示す図である。It is a figure which shows the state holding the terminal of Embodiment 1 by the wiring board groove | channel. 実施の形態１のターミナル立ち上げ部と給電端子との接続状態を示す図である。It is a figure which shows the connection state of the terminal starting part of Embodiment 1, and an electric power feeding terminal. 実施の形態１の結線板内径側スナップフィットの係合状態を示す図である。It is a figure which shows the engagement state of the connection board inner diameter side snap fit of Embodiment 1. FIG. 実施の形態１の結線板外径側スナップフィットの係合状態を示す図である。It is a figure which shows the engagement state of the connection board outer diameter side snap fit of Embodiment 1. FIG. 実施の形態１の結線板側面形状を示す図である。It is a figure which shows the connection board side surface shape of Embodiment 1. FIG. 実施の形態１の結線板内径側スナップフィットを示す図である。It is a figure which shows the connection board inner diameter side snap fit of Embodiment 1. FIG. 実施の形態１の結線板外径側スナップフィットを示す図である。It is a figure which shows the connection board outer diameter side snap fit of Embodiment 1. FIG. 実施の形態１のベース型状を示す図である。FIG. 3 is a diagram showing a base mold shape according to the first embodiment. 実施の形態１のベース内径側スナップフィット係合部を示す図である。FIG. 3 is a diagram showing a base inner diameter side snap fit engagement portion of the first embodiment. 実施の形態１のベース外径側スナップフィット係合部を示す図である。FIG. 3 is a diagram showing a base outer diameter side snap fit engagement portion of the first embodiment.

実施の形態１．
以下、この発明の実施の形態１による回転電機を図に基づいて説明する。
図１は、回転電機５０の１例としての自動車等車輌に搭載される諸機器を駆動する電動機の固定子コイル端子７と外部からの給電端子４との間に設けられ、これらをつなぐ接続端子部２０と固定子５の断面を示す図である。
図１において、固定子５の鉄心に設けられた固定子コイル６の巻き始め、巻き終わりなどの固定子コイル端子７は、固定子５の側部に配置された結線板２によって回転電機５０としての所定の結線がなされる。この結線板２の回転電機５０の軸方向であって、反固定子側には、ベース３が外部につながるＵ、Ｖ、Ｗ相の給電端子４を保持して前記結線板２の反固定子側端面２ｅにベース底面３ｂが直接接触して、後に詳述する結線板内径側スナップフィット１０および結線板外径側スナップフィット１１によって装着、固定されている。
固定子コイル６は、固定子コイル端子７にて結線板２のターミナル接続部８と接続されている。このような上記結線板２とベース３とで接続端子部２０を構成している。 Embodiment 1 FIG.
A rotating electrical machine according to Embodiment 1 of the present invention will be described below with reference to the drawings.
FIG. 1 is a connection terminal that is provided between a stator coil terminal 7 of an electric motor that drives various devices mounted on a vehicle such as an automobile as an example of a rotating electrical machine 50 and a power supply terminal 4 from outside. It is a figure which shows the cross section of the part 20 and the stator 5. FIG.
In FIG. 1, the stator coil terminals 7 such as the start and end of winding of the stator coil 6 provided on the iron core of the stator 5 are used as a rotating electrical machine 50 by the connection plate 2 disposed on the side of the stator 5. The predetermined connection is made. In the axial direction of the rotating electrical machine 50 of the connection plate 2, the anti-stator of the connection plate 2 holds the U, V, and W-phase power supply terminals 4 connected to the outside on the anti-stator side. The base bottom surface 3b is in direct contact with the side end surface 2e, and is attached and fixed by a connection plate inner diameter side snap fit 10 and a connection plate outer diameter side snap fit 11, which will be described in detail later.
The stator coil 6 is connected to the terminal connection portion 8 of the connection board 2 by a stator coil terminal 7. Such a connection plate 2 and the base 3 constitute a connection terminal portion 20.

図２（ａ）は、接続端子部２０を反固定子側から見た正面図であり、図２（ｂ）はその側面図である。図２に示すように結線板２は絶縁性樹脂で形成され、回転電機５０と同軸に複数の同心層状の溝２ｆが設けられていて、図３に示すように、例えば上記溝２ｆの内、最内層の溝２ｆにＵ相、中央層の溝２ｆにＶ相、最外層の溝２ｆにＷ相のターミナル１が挿入されている。これらターミナル１は、ターミナル接続部８で固定子コイル端子７と溶接またはヒュージング、ハンダ等で固着されている。尚、結線板足部２ａは固定子５の構成部材に当接し、結線板２の位置決めを行っている。
また、各相のターミナル１はターミナル立ち上げ部１ａで図１、図４に示すようにベース３に保持された給電端子４の各相に溶接またはヒュージング、ハンダ等で固着されている。
図３は、図２のベース３が装着されない状態の結線板２の正面図であり、後述する図６に示す結線板外径側スナップフィット１１と、ターミナル接続部８の平面位置関係を示す図である。 Fig.2 (a) is the front view which looked at the connection terminal part 20 from the anti-stator side, and FIG.2 (b) is the side view. As shown in FIG. 2, the connection plate 2 is formed of an insulating resin, and is provided with a plurality of concentric layer-like grooves 2 f coaxially with the rotating electrical machine 50, and as shown in FIG. A U-phase terminal 1 is inserted into the innermost layer groove 2f, a V-phase terminal 1 is inserted into the central layer groove 2f, and a W-phase terminal 1 is inserted into the outermost layer groove 2f. These terminals 1 are fixed to the stator coil terminal 7 at the terminal connection portion 8 by welding, fusing, solder, or the like. The connecting plate foot 2a is in contact with the constituent members of the stator 5 to position the connecting plate 2.
Further, each phase terminal 1 is fixed to each phase of the power supply terminal 4 held by the base 3 by welding, fusing, soldering, or the like, as shown in FIGS.
FIG. 3 is a front view of the connection plate 2 in a state where the base 3 of FIG. 2 is not attached, and is a diagram showing a planar positional relationship between the connection plate outer diameter side snap fit 11 shown in FIG. It is.

図３から判るように、最内層の溝２ｆにはＵ１〜Ｕ４のターミナル１が、中央層の溝２ｆにはＶ１〜Ｖ４のターミナル１が、最外層の溝２ｆにはＷ１〜Ｗ４のターミナル１がそれぞれ挿入されている。この結線板２の各溝間の溝壁には溝切り欠き１ｂが設けられ、この溝切り欠き１ｂから前記それぞれのターミナル接続部８が異相のターミナルと直交して径方向に突出している。なお、この図３の例では、デルタ結線の場合についてのターミナル１の配置関係を示したが、スター結線の場合であってもよく、結線方式に限定されない。
結線板外径側スナップフィット１１は、図３および後述する図１０で示すように円周上９０度離れた２カ所に設けられている。尚、この図３、図１０では９０度の位置を示しているが、前記ターミナル接続部８の取り付け位置や、ベース３の平面寸法形状に応じてその角度を変更可能である。 As can be seen from FIG. 3, U1-U4 terminals 1 are provided in the innermost layer groove 2f, V1-V4 terminals 1 are provided in the central layer groove 2f, and W1-W4 terminals 1 are provided in the outermost layer groove 2f. Are inserted. A groove notch 1b is provided in the groove wall between each groove of the connection plate 2, and the respective terminal connecting portions 8 project radially from the groove notch 1b perpendicular to the terminals of different phases. In the example of FIG. 3, the arrangement relationship of the terminals 1 in the case of the delta connection is shown, but the case of the star connection may be used, and is not limited to the connection method.
As shown in FIG. 3 and FIG. 10 described later, the connecting plate outer diameter side snap fit 11 is provided at two locations 90 degrees apart on the circumference. 3 and 10 show a 90 degree position, the angle can be changed according to the mounting position of the terminal connecting portion 8 and the planar dimension of the base 3.

図４は、ターミナル１と給電端子４との接続状態を示す断面投影図であり、図２のＡ−Ａ断面部位に相当する。この例では結線板２の最外層の溝２ｆに挿入されたＷ相のターミナル１のターミナル立ち上げ部１ａが、ベース３の開口３ａを通り給電端子４とその端末において、前述したように溶接またはヒュージング、ハンダ等で固着されている。
図５は、結線板２に設けられている結線板内径側スナップフィット１０が、ベース３のベース内径側スナップフィット係合部１２に係合した状態を示す断面投影図であり、前述した図２のＢ−Ｂ断面およびＣ−Ｃ断面ならびに後述する図１０のＦ−Ｆ断面の個所に相当する。尚この結線板内径側スナップフィット１０の取り付け位置は、図２および図１０に示した６０度離れて２カ所設けてあり、この６０度は前述した結線板外径側スナップフィット１１の取り付け位置の９０度の範囲内の位置であり、この６０度の角度も適宜変更可能である。図５から判るように、結線板内径側スナップフィット１０は、内周面２ｄと同一面から回転電機５０の軸と平行に、反固定子側に突出し、結線板２の反固定子側に接して装着されたベース３に設けられたベース内径側スナップフィット係合部１２に係合している。 FIG. 4 is a cross-sectional projection view showing a connection state between the terminal 1 and the power supply terminal 4, and corresponds to the AA cross-sectional portion of FIG. 2. In this example, the terminal rising portion 1a of the W-phase terminal 1 inserted in the groove 2f of the outermost layer of the connection plate 2 passes through the opening 3a of the base 3 and is welded or connected to the power supply terminal 4 and its terminal as described above. It is fixed with fusing, solder, etc.
FIG. 5 is a cross-sectional projection view showing a state in which the connection plate inner diameter side snap fit 10 provided on the connection plate 2 is engaged with the base inner diameter side snap fit engagement portion 12 of the base 3. BB cross-section and CC cross-section of FIG. 10 and the FF cross-section of FIG. The attachment position of the inner diameter side snap fit 10 of the connection plate is provided at two positions 60 degrees apart as shown in FIGS. 2 and 10. The position is within a range of 90 degrees, and the angle of 60 degrees can be changed as appropriate. As can be seen from FIG. 5, the connection plate inner diameter side snap fit 10 protrudes from the same surface as the inner peripheral surface 2 d to the anti-stator side in parallel with the axis of the rotating electrical machine 50 and contacts the anti-stator side of the connection plate 2. Are engaged with a base inner diameter side snap fit engagement portion 12 provided on the base 3 attached in this manner.

図６は、結線板２に設けられている結線板外径側スナップフィット１１が、ベース３のベース外径側スナップフィット係合部１３に係合した状態を示す断面投影図であり、後述する図１０のＧ−Ｇ断面の個所に相当する。図６から判るように、結線板外径側スナップフィット１１は、結線板２の外径側から固定子側に斜めに突出した後、回転電機５０の軸方向と平行に反固定子側に延伸する形状を有し、延伸した先端部分において外径側に突出して設けられた当接部１４にベース外径側スナップフィット係合部１３が係合している。
このような屈曲した形状を有する結線板外径側スナップフィット１１は、ベース外径側スナップフィット係合部１３に係合する時、係合の際に発生する応力を緩和することができる。また、当接部１４が外径側に突出して設けられているので、結線板１の樹脂成形用金型が上、下２分割構造を採用可能となり、金型製作コストの低減および結線板樹脂成形後の脱型が容易となり、結線板２の製造コストが低減する。 FIG. 6 is a cross-sectional projection view showing a state where the connection plate outer diameter side snap fit 11 provided in the connection plate 2 is engaged with the base outer diameter side snap fit engagement portion 13 of the base 3, which will be described later. This corresponds to the portion of the GG cross section of FIG. As can be seen from FIG. 6, the outer diameter side snap fit 11 of the connection plate protrudes obliquely from the outer diameter side of the connection plate 2 to the stator side, and then extends to the anti-stator side in parallel with the axial direction of the rotating electrical machine 50. The base outer-diameter-side snap fit engaging portion 13 is engaged with the abutting portion 14 that protrudes to the outer-diameter side at the extended tip portion.
When the connection plate outer diameter side snap fit 11 having such a bent shape is engaged with the base outer diameter side snap fit engagement portion 13, it is possible to relieve stress generated during the engagement. Further, since the abutting portion 14 is provided so as to protrude toward the outer diameter side, the resin molding die of the connection plate 1 can adopt an upper and lower divided structure, which reduces the manufacturing cost of the mold and reduces the connection plate resin. Demolding after molding becomes easy, and the manufacturing cost of the connection board 2 is reduced.

図７に、結線板２の側面形状を示す。
図８は、結線板内径側スナップフィット１０を図７に示した内周面２ｄから見た展開図として示す。図８から判るように、結線板内径側スナップフィット１０は内径部２ｇにおいて、内周面２ｄと同一面で反固定子側端面２ｃ側（ベース３側）から突出したアーチ部１０ａを有している。このアーチ部１０ａが後述する図１１のベース内径側スナップフィット係合部１２に係合する。
図９は、図６で説明した結線板外径側スナップフィット１１を拡大して示す図であり、外径部２ｈに結線板外径側スナップフィット１１が設けられている。
図１０は、ベース３を反固定子側から見た平面図であり、内径部３ｃに結線板２との係合を行うベース内径側スナップフィット係合部１２が６０度離れた２カ所に、および外径部３ｄにベース外径側スナップフィット係合部１３が９０度離れた２カ所に配置されたことを示す図である。
図１１は、図５で説明したベース３のベース内径側スナップフィット係合部１２を拡大して示す図であり、この部分に結線板内径側スナップフィット１０のアーチ部１０ａが係合する。
図１２は、図１０で示した断面Ｇ−Ｇ部におけるベース３の開口３ａに設けられたベース外径側スナップフィット係合部１３を拡大して示す図である。尚、このベース外径側スナップフィット係合部１３はベース底面３ｂより回転電機５０の軸と平行に固定子側、すなわち結線板２側に延出した開口３ａ内に設けられている。 In FIG. 7, the side surface shape of the connection board 2 is shown.
FIG. 8 shows the connection plate inner diameter side snap fit 10 as a development view seen from the inner peripheral surface 2d shown in FIG. As can be seen from FIG. 8, the connection plate inner diameter side snap fit 10 has an arch portion 10a in the inner diameter portion 2g which is flush with the inner peripheral surface 2d and protrudes from the anti-stator side end surface 2c side (base 3 side). Yes. This arch portion 10a engages with a base inner diameter side snap fit engagement portion 12 of FIG.
FIG. 9 is an enlarged view of the connection plate outer diameter side snap fit 11 described in FIG. 6, and the connection plate outer diameter side snap fit 11 is provided in the outer diameter portion 2 h.
FIG. 10 is a plan view of the base 3 as viewed from the side opposite to the stator, and the base inner diameter side snap fit engagement portions 12 that engage the connection plate 2 with the inner diameter portion 3c are located at two positions separated by 60 degrees. It is a figure which shows that the base outer diameter side snap fit engagement part 13 is arrange | positioned 90 degrees apart in the outer diameter part 3d.
FIG. 11 is an enlarged view of the base inner diameter side snap fit engaging portion 12 of the base 3 described in FIG. 5, and the arch portion 10 a of the connection plate inner diameter side snap fit 10 is engaged with this portion.
FIG. 12 is an enlarged view of the base outer diameter side snap fit engagement portion 13 provided in the opening 3a of the base 3 in the section GG shown in FIG. The base outer diameter side snap fit engagement portion 13 is provided in an opening 3a extending from the base bottom surface 3b in parallel with the axis of the rotating electrical machine 50 to the stator side, that is, the connection plate 2 side.

以上のように、この実施の形態１による回転電機５０は、結線板２にベース３が内径側の２カ所、外径側の２カ所の計４カ所でスナップフィットによって係合された接続端子部２０を備えているので、回転電機５０を車輌等に搭載作業時にベース３に保持されている給電端子４に過度の外力が印加されても、ベース３と結線板２との剛性で外力に対抗し、ベース３と結線板２との間に、相対的な面内のズレ、軸方向の動きが発生せず、従って、給電端子４につながる結線板２の溝内のターミナル間の絶縁空隙の減少や、短絡等の発生が防止できる。   As described above, in the rotating electrical machine 50 according to the first embodiment, the connection terminal portion in which the base 3 is engaged with the connection plate 2 by the snap fit at two locations on the inner diameter side and two locations on the outer diameter side. 20, even if an excessive external force is applied to the power supply terminal 4 held by the base 3 when the rotary electric machine 50 is mounted on a vehicle or the like, the rigidity of the base 3 and the connection plate 2 resists the external force. However, relative in-plane displacement and axial movement do not occur between the base 3 and the connection plate 2, and therefore, there is no insulation gap between the terminals in the groove of the connection plate 2 connected to the power supply terminal 4. Reduction and occurrence of short circuit can be prevented.

この発明は、車輌等に搭載される電動機に利用可能である。   The present invention can be used for an electric motor mounted on a vehicle or the like.

１ ターミナル、２ 結線板、３ ベース、４ 給電端子、５ 固定子、
７ 固定子コイル端子、１０ 結線板内径側スナップフィット、１０ａ アーチ部、
１１ 結線板外径側スナップフィット、１２ ベース内径側スナップフィット係合部、
１３ ベース外径側スナップフィット係合部、１４ 当接部、２０ 接続端子部、
５０ 回転電機。 1 terminal, 2 connection board, 3 base, 4 power supply terminal, 5 stator,
7 Stator coil terminal, 10 Connection plate inner diameter side snap fit, 10a Arch part,
11 Connection board outer diameter side snap fit, 12 Base inner diameter side snap fit engagement part,
13 base outer diameter side snap fit engagement part, 14 contact part, 20 connection terminal part,
50 Rotating electric machine.

Claims (5)

固定子コイル端子と給電端子との間に介在する接続端子部を備えた回転電機において、
前記接続端子部には、絶縁性樹脂で成形され前記回転電機軸と同軸に複数の同心状の溝が設けられ、該溝内に前記給電端子のＵ、Ｖ、Ｗ相につながるとともに、前記固定子コイル端子に接続される各相別のターミナルが挿入された円環状の結線板と、絶縁性樹脂で成形され外径部と内径部を有する平面円弧状をなし前記給電端子を保持するとともに、前記結線板の反固定子側端面に接して固着されたベースとが設けられており、前記ベースの外径部には、所定の角度離れた２カ所に外径側スナップフィット係合部が、前記ベースの内径部には前記所定の角度より狭い角度離れた２カ所に内径側スナップフィット係合部が設けられており、前記結線板の内径部には、前記ベースの前記内径側スナップフィット係合部と係合する内径側スナップフィットが、外径部には前記ベースの前記外径側スナップフィット係合部と係合する外径側スナップフィットが設けられており、前記ベースが前記結線板の前記内径側スナップフィットおよび前記外径側スナップフィットによって係合されていることを特徴とする回転電機。 In a rotating electrical machine having a connection terminal portion interposed between a stator coil terminal and a power feeding terminal,
A plurality of concentric grooves are formed on the connection terminal portion, which are formed of an insulating resin and coaxial with the rotating electric machine shaft, and are connected to the U, V, and W phases of the power supply terminal in the groove, and the fixed terminal An annular connection plate in which terminals for each phase connected to the child coil terminal are inserted, a planar arc shape formed of an insulating resin and having an outer diameter portion and an inner diameter portion, and holding the power supply terminal, A base fixed in contact with the end face on the side opposite to the stator of the connection plate is provided , and an outer diameter side snap fit engagement portion is provided at two positions separated by a predetermined angle on the outer diameter portion of the base, The inner diameter portion of the base is provided with inner diameter side snap fit engagement portions at two positions that are separated by an angle narrower than the predetermined angle, and the inner diameter portion of the connection plate has the inner diameter side snap fit engagement portion. Inner diameter snap hook engaged with joint The outer diameter portion is provided with an outer diameter side snap fit that engages with the outer diameter side snap fit engaging portion of the base, and the base is provided with the inner diameter side snap fit of the connection plate and the base plate. A rotating electrical machine characterized by being engaged by an outer diameter side snap fit. 前記結線板の前記内径側スナップフィットは、前記結線板の内径部から内周面と同一面上で前記回転電機の軸方向に、前記ベース側に突出したアーチ部が設けられていることを特徴とする請求項１に記載の回転電機。 The inner diameter side snap fit of the connection plate, characterized in that the axial direction of the rotary electric machine on the inner peripheral surface in the same plane, the arch portion projecting on the base side is provided from the inner diameter portion of the connection board The rotating electrical machine according to claim 1 . 前記結線板の前記外径側スナップフィットは、前記結線板の外径部から前記固定子側に斜めに突出した後、前記回転電機の軸方向と平行に反固定子側に延伸する形状をなすとともに、前記ベースの前記外径側スナップフィット係合部と係合する当接部が外径側に突出していることを特徴とする請求項１に記載の回転電機。 The outer diameter side snap fit of the connection board, after protruding from the outer diameter of the wire connection plate obliquely to the stator side, a shape which extends in the axial direction parallel to the counter-stator side of the rotating electrical machine together with the rotating electrical machine according to claim 1 contact portion for engagement with the base of the outer diameter side snap-fit engagement portion and wherein the protruding radially outwardly. 前記ベースの前記内径側スナップフィット係合部は、前記ベースの内周面から径方向内側に突出していることを特徴とする請求項１に記載の回転電機。 2. The rotating electrical machine according to claim 1 , wherein the inner diameter side snap fit engagement portion of the base protrudes radially inward from an inner peripheral surface of the base. 前記ベースの前記外径側スナップフィット係合部は、前記ベースの外径部に設けられた開口部内から径方向内側に突出して設けられていることを特徴とする請求項１に記載の回転電機。 2. The rotating electrical machine according to claim 1 , wherein the outer-diameter-side snap-fit engagement portion of the base is provided to protrude radially inward from an opening provided in the outer-diameter portion of the base. .
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