JP5802158B2 - Electric actuator - Google Patents

Electric actuator Download PDF

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JP5802158B2
JP5802158B2 JP2012064309A JP2012064309A JP5802158B2 JP 5802158 B2 JP5802158 B2 JP 5802158B2 JP 2012064309 A JP2012064309 A JP 2012064309A JP 2012064309 A JP2012064309 A JP 2012064309A JP 5802158 B2 JP5802158 B2 JP 5802158B2
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motor
terminal
shaft portion
notch
rotational force
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元田　晴晃
晴晃 元田
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Hitachi Astemo Ltd
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Hitachi Automotive Systems Ltd
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Description

本発明は、一方の通電端子に対して他方の通電端子を電気的に接続する端子接続部と、該端子接続部を備えた電動アクチュエータとに関する。   The present invention relates to a terminal connecting portion that electrically connects the other energizing terminal to one energizing terminal, and an electric actuator including the terminal connecting portion.

本発明は、一方の通電端子に対して他方の通電端子を電気的に接続する端子接続部を備えた電動アクチュエータに関する。 The present invention relates to an electric actuator having a terminal connecting portion for electrically connecting the other conduction terminal for one of the current terminals.

従来の端子接続部としては、例えば特許文献１に記載のものが知られている。特許文献１は、音叉端子１１がバスバー１０と一体に形成されており、音叉端子１１にスロット１１ａを形成することにより両側縁１１ｂ，１１ｃが形成され、一端縁１１ｂには内側に突出する第１接点部１１ｂ−１が形成され、他端縁１１ｃには内側に突出する第２接点部１１ｃ−２が形成されている。   As a conventional terminal connection part, the thing of patent document 1 is known, for example. In Patent Document 1, the tuning fork terminal 11 is formed integrally with the bus bar 10, and both side edges 11b and 11c are formed by forming the slot 11a in the tuning fork terminal 11, and the first edge 11b protrudes inward. A contact portion 11b-1 is formed, and a second contact portion 11c-2 protruding inward is formed at the other end edge 11c.

前記雄タブ２１を前記音叉端子１１の上端よりスロット１１ａに挿入すると、
第１接点部１１ｂ−１と第２接点部１１ｃ−２とが広がる方向へ弾性変形し、該弾性変形により復帰しようとする反力が生じ、第１接点部１１ｂ−１と第２接点部１１ｃ−２とが非対称位置で雄タブ２１の両面に圧接される。 When the male tab 21 is inserted into the slot 11a from the upper end of the tuning fork terminal 11,
The first contact portion 11b-1 and the second contact portion 11c-2 are elastically deformed in a direction in which the first contact portion 11b-1 and the second contact portion 11c-2 spread, and a reaction force is generated to return due to the elastic deformation. -2 is pressed against both surfaces of the male tab 21 at an asymmetrical position.

特開２００７−２８７６１９号公報JP 2007-287619 A

ところが、特許文献１に記載の端子接続部は、振動を受けたり、あるいは経時的な劣化などにより当初に有していた弾性変形した後の復帰力が低下し、前記反力が徐々に消失して圧接力が低下するため、音叉端子１１と雄タブ２１との接触圧が低下して電気的な接続が確保できなくなる虞がある。   However, in the terminal connection part described in Patent Document 1, the return force after the elastic deformation that was initially included due to vibration or deterioration over time is reduced, and the reaction force gradually disappears. As a result, the pressure contact force decreases, so that the contact pressure between the tuning fork terminal 11 and the male tab 21 may decrease and electrical connection may not be ensured.

そこで本発明は、上記の課題を解決した端子接続部および電動アクチュエータを提供することを目的とする。   Then, an object of this invention is to provide the terminal connection part and electric actuator which solved said subject.

請求項１に係る発明は、電動モータを収容したモータユニットと、前記電動モータを制御する制御手段を収容した制御ユニットとにより構成し、
前記制御手段は、モータ駆動回路部とフィルタ回路部とを、前記電動モータの軸方向に対向させて配置し、
前記モータ駆動回路部と前記フィルタ回路部との間、または、前記モータ駆動回路部もしくは前記フィルタ回路部と前記電動モータとの間を電気接続した電動アクチュエータであって、
軸部を有する第１通電端子と、帯板状部材の先端部から基端部へ向かって切欠部を形成して前記第１通電端子の軸部を該軸部と直角な方向から挟持する一対の挟持部を設けた第２通電端子と、金属基板に固定され、前記第１通電端子の軸部が設けられたブロックと、により構成し、
前記軸部を前記切欠部の底部へ向って押圧したときに、前記一対の挟持部の先端部が閉じる方向へ前記一対の挟持部の夫々に回転力を生じさせる回転力発生手段を前記第２通電端子に設け、前記軸部を切欠部の底部へ向って相対的に押圧する押圧力は前記第１通電端子と前記第２通電端子との組み付けによる組付力により付与されるようにした端子接続部を設け、
前記切欠部と回転力発生手段との間に、前記軸部を切欠部の底部方向へ挿入した際に前記軸部の先端部に押圧されることにより、前記回転力発生手段を介して前記一対の挟持部の先端部に閉じる方向への回転力を付与する一対の被押圧部が形成し、
前記端子接続部によって、前記モータ駆動回路部と前記フィルタ回路部との間、または、前記モータ駆動回路部もしくは前記フィルタ回路部と前記電動モータとの間を電気接続したことを特徴としている。 The invention according to claim 1 comprises a motor unit that houses an electric motor, and a control unit that houses a control means for controlling the electric motor,
The control means is arranged such that the motor drive circuit unit and the filter circuit unit are opposed to each other in the axial direction of the electric motor,
An electric actuator electrically connected between the motor drive circuit unit and the filter circuit unit or between the motor drive circuit unit or the filter circuit unit and the electric motor;
A first energizing terminal having a shaft portion and a pair of forming a notch portion from the distal end portion to the base end portion of the band plate member and sandwiching the shaft portion of the first energizing terminal from a direction perpendicular to the shaft portion. A second energizing terminal provided with a sandwiching portion, and a block fixed to a metal substrate and provided with a shaft portion of the first energizing terminal ,
And a second rotational force generating means for generating a rotational force in each of the pair of sandwiching portions in a direction in which the distal ends of the pair of sandwiching portions are closed when the shaft portion is pressed toward the bottom of the notch portion. A terminal provided on the energizing terminal, wherein the pressing force for relatively pressing the shaft portion toward the bottom of the notch is applied by an assembling force by assembling the first energizing terminal and the second energizing terminal. Providing a connection,
Between the rotary force generating unit and front Symbol notch, by being pressed by the tip end portion of the shaft portion upon inserting the shaft portion to the bottom direction of the notch, the via the rotational force generator A pair of pressed parts for applying a rotational force in the closing direction to the distal ends of the pair of sandwiching parts are formed,
The terminal connection unit electrically connects the motor drive circuit unit and the filter circuit unit or between the motor drive circuit unit or the filter circuit unit and the electric motor . .

請求項２に係る発明は、請求項１に記載の端子接続部において、
前記回転力発生手段として、前記切欠部の底部から前記第２通電端子の基端部へ向かって分岐する第１スリットを形成したことを特徴とする。 The invention according to claim 2 is the terminal connection portion according to claim 1,
As the rotational force generating means, a first slit is formed that branches from the bottom of the notch to the base end of the second energizing terminal.

請求項３に係る発明は、電動モータを収容したモータユニットと、前記モータを制御する制御手段を収容した制御ユニットとにより構成し、
前記制御手段は、モータ駆動回路部とフィルタ回路部とを、前記電動モータの軸方向に対向させて配置し、
前記モータ駆動回路部と前記フィルタ回路部との間、または、前記モータ駆動回路部もしくは前記フィルタ回路部と前記電動モータとの間を電気接続した電動アクチュエータであって、
軸部を有する第１通電端子と、帯板状部材に該帯板状部材の先端部から基端部へ向かって切欠部を形成して前記軸部を前記軸部と直角な方向から挟持する一対の挟持部を設けた第２通電端子とにより構成し、
前記軸部を前記切欠部の底部へ向って押圧したときに、前記一対の挟持部の先端部が閉じる方向へ前記一対の挟持部の夫々に回転力を生じさせる回転力発生手段を前記第２通電端子に設け、前記軸部を切欠部の底部へ向って相対的に押圧する押圧力は前記第１通電端子と前記第２通電端子との組み付けによる組付力により付与されるようにした端子接続部を設け、
該端子接続部によって、前記モータ駆動回路部と前記フィルタ回路部との間、または、前記モータ駆動回路部もしくは前記フィルタ回路部と前記電動モータとの間を電気接続したことを特徴とする。 The invention according to claim 3 comprises a motor unit that houses an electric motor, and a control unit that houses a control means for controlling the motor,
The control means is arranged such that the motor drive circuit unit and the filter circuit unit are opposed to each other in the axial direction of the electric motor,
An electric actuator electrically connected between the motor drive circuit unit and the filter circuit unit or between the motor drive circuit unit or the filter circuit unit and the electric motor;
A first energizing terminal having a shaft portion, and a notch portion is formed in the strip plate member from the distal end portion to the proximal end portion of the strip plate member, and the shaft portion is sandwiched from a direction perpendicular to the shaft portion. A second energizing terminal provided with a pair of clamping parts;
And a second rotational force generating means for generating a rotational force in each of the pair of sandwiching portions in a direction in which the distal ends of the pair of sandwiching portions are closed when the shaft portion is pressed toward the bottom of the notch portion. A terminal provided on the energizing terminal, wherein the pressing force for relatively pressing the shaft portion toward the bottom of the notch is applied by an assembling force by assembling the first energizing terminal and the second energizing terminal. Providing a connection,
The terminal connection portion electrically connects the motor drive circuit portion and the filter circuit portion or between the motor drive circuit portion or the filter circuit portion and the electric motor.

請求項１に係る端子接続部によれば、組付力と回転力発生手段との作用により夫々の挟持部には夫々の挟持部の先端部が閉じる方向へ回転力が生じるので、挟持部と軸部との圧接力の低下が抑制され、電気的な接続が確保される。   According to the terminal connecting portion according to claim 1, since the rotational force is generated in the direction in which the front end portion of each clamping portion is closed by the action of the assembly force and the rotational force generating means, the clamping portion and A decrease in pressure contact force with the shaft portion is suppressed, and electrical connection is ensured.

請求項２に係る端子接続部によれば、回転力発生手段として第２通電端子に第１スリットを形成するだけなので、構造が簡単である。   According to the terminal connection portion of the second aspect, since the first slit is only formed in the second energizing terminal as the rotational force generating means, the structure is simple.

請求項３に係る電動アクチュエータによれば、請求項１に記載の端子接続部を介して接続するので、組付力と回転力発生手段との作用により、第２通電端子の夫々の挟持部には夫々の挟持部の先端部が閉じる方向へ回転力が生じ、挟持部と第１通電端子の軸部との圧接力の低下が抑制され、電気的な接続が確保される。   According to the electric actuator of the third aspect, since the connection is made via the terminal connection portion according to the first aspect, each of the holding portions of the second energizing terminal is caused by the action of the assembly force and the rotational force generating means. Rotational force is generated in the direction in which the tip of each clamping part closes, and a decrease in the pressing force between the clamping part and the shaft part of the first current-carrying terminal is suppressed, and electrical connection is ensured.

端子接続部に係り、（ａ）は断続状態の構成図、（ｂ）は接続状態の構成図（実施の形態１）。(A) is a block diagram of an intermittent state, (b) is a block diagram of a connection state (embodiment 1). 電動パワーステアリング装置の分解斜視図（実施の形態１）。1 is an exploded perspective view of an electric power steering device (Embodiment 1). FIG. 電動パワーステアリング装置の要部を示す斜視図（実施の形態１）。1 is a perspective view showing a main part of an electric power steering device (Embodiment 1). FIG. 電動パワーステアリング装置の要部を一部破断して示す正面図（実施の形態１）。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 端子接続部に係り、（ａ）は断続状態の構成図、（ｂ）は接続状態の構成図（実施の形態２）。(A) is a block diagram of an intermittent state, (b) is a block diagram of a connection state (embodiment 2). 端子接続部に係り、（ａ）は断続状態の構成図、（ｂ）は接続状態の構成図（実施の形態３）。(A) is a block diagram of an intermittent state, (b) is a block diagram of a connection state (embodiment 3). 端子接続部に係り、（ａ）は断続状態の構成図、（ｂ）は接続状態の構成図（実施の形態４）。(A) is a block diagram of an intermittent state, (b) is a block diagram of a connection state (embodiment 4). 端子接続部に係り、（ａ）は断続状態の構成図、（ｂ）は接続状態の構成図（実施の形態５）。(A) is a configuration diagram in an intermittent state, and (b) is a configuration diagram in a connection state (embodiment 5).

以下、本発明による端子接続部および電動アクチュエータの実施の形態を説明する。本実施の形態は、本発明による電動アクチュエータを、ステアリングホィールを回動操作する際のトルクを補助する電動パワーステアリング装置に適用したものである。
（ａ）実施の形態１
まず、実施の形態１について説明する。
（実施の形態１の構成）
運転者がステアリングホィールを回動操作する際のトルクを補助するため、車両には電動パワーステアリング装置が設けられている。該電動パワーステアリング装置は、ステアリングシャフトの回動方向と回動トルクとを検出するトルクセンサを設け、該トルクセンサの検出値に基づいて電動モータを駆動するものであり、電動モータと該電動モータを制御する制御手段とにより構成されている。 Hereinafter, embodiments of a terminal connecting portion and an electric actuator according to the present invention will be described. In the present embodiment, the electric actuator according to the present invention is applied to an electric power steering device that assists the torque when the steering wheel is turned.
(A) Embodiment 1
First, the first embodiment will be described.
(Configuration of Embodiment 1)
An electric power steering device is provided in the vehicle in order to assist the torque when the driver rotates the steering wheel. The electric power steering apparatus includes a torque sensor that detects a rotation direction and a rotation torque of a steering shaft, and drives the electric motor based on a detection value of the torque sensor. The electric motor and the electric motor And control means for controlling.

図２に示すように、電動パワーステアリング装置は、モータユニット１とコントロールユニット（ＥＣＵ：Ｅｌｅｃｔｒｏｎｉｉｃ Ｃｏｎｔｒｏｌ Ｕｎｉｔ）２とにより構成され、モータユニット１には例えば三相ブラシレスモータ等の電動モータが収容され、コントロールユニット２には制御手段が収容されている。モータユニット１を構成するモータハウジング１ａの図中の右上に位置する出力軸側には３つのボス部１ｂが形成され、該ボス部１ｂに設けられた取付孔１ｃに図示しないボルトを挿通して、モータユニット１が車両の図示しないギヤに結合されている。モータハウジング１ａの出力軸とは反対側の図中の左下には、外形寸法の大きい外装部１ｄが形成され、該外装部１ｄに図示しないボルトを介してコントロールユニット２が結合されている。   As shown in FIG. 2, the electric power steering apparatus includes a motor unit 1 and a control unit (ECU: Electronic Control Unit) 2. The motor unit 1 houses an electric motor such as a three-phase brushless motor. The control unit 2 accommodates control means. Three boss portions 1b are formed on the output shaft side located in the upper right of the motor housing 1a constituting the motor unit 1, and a bolt (not shown) is inserted into a mounting hole 1c provided in the boss portion 1b. The motor unit 1 is coupled to a gear (not shown) of the vehicle. An exterior part 1d having a large outer dimension is formed in the lower left in the drawing on the side opposite to the output shaft of the motor housing 1a, and the control unit 2 is coupled to the exterior part 1d via a bolt (not shown).

該コントロールユニット２は、底部がモータユニット１側に結合された有底筒形状のＥＣＵハウジング３と、該ＥＣＵハウジング３に図示しない３本のボルトを介して結合された蓋体４と、ＥＣＵハウジング３と蓋体４とにより形成される収容空間に収容されたモータ駆動回路部５，制御回路部６，フィルタ回路部７とで構成されている。   The control unit 2 includes a bottomed cylindrical ECU housing 3 whose bottom is coupled to the motor unit 1, a lid 4 coupled to the ECU housing 3 through three bolts (not shown), and an ECU housing. The motor drive circuit unit 5, the control circuit unit 6, and the filter circuit unit 7 housed in the housing space formed by the cover 3 and the lid body 4.

前記モータ駆動回路部５は、制御回路６から送られる制御信号によって図示しないＭＯＳＦＥＴを駆動制御し、該ＭＯＳＦＥＴにより電動モータの３相のモータ側通電端子に交流電流を供給して電動モータを駆動するものであり、金属基板８に図示しないＭＯＳＦＥＴが実装されている。前記制御回路部６は、前記のように前記ＭＯＳＦＥＴ等を制御するものであり、プリント基板９に図示しないマイコンを実装して構成されている。前記フィルタ回路部７は、コントロールユニット２の内外のノイズを吸収する機能を備えており、コントロールユニット２の内外から電源ラインに混入するノイズやＭＯＳＦＥＴのスイッチングノイズ（ラジオノイズ）を吸収し、外部へ伝播されるのを抑制するものであり、樹脂基板１０に図示しないコンデンサ，コイル，リレー等を実装して構成されている。   The motor drive circuit unit 5 drives and controls a MOSFET (not shown) by a control signal sent from the control circuit 6, and drives the electric motor by supplying alternating current to the three-phase motor side energization terminals of the electric motor by the MOSFET. A MOSFET (not shown) is mounted on the metal substrate 8. The control circuit unit 6 controls the MOSFET and the like as described above, and is configured by mounting a microcomputer (not shown) on the printed circuit board 9. The filter circuit unit 7 has a function of absorbing noise inside and outside the control unit 2, absorbs noise mixed into the power supply line from inside and outside of the control unit 2 and MOSFET switching noise (radio noise), and outputs to the outside. It suppresses propagation and is configured by mounting a capacitor, a coil, a relay, and the like (not shown) on the resin substrate 10.

蓋体４の外面にはコネクタ４ａが一体形成され、該コネクタ４ａを介して、図示しないバッテリから前記モータ駆動回路部５，前記制御回路部６，前記フィルタ回路部７および前記モータユニット１内の電動モータへ電力が供給されている。電力の供給を行うための構成を以下に詳細に説明する。   A connector 4a is integrally formed on the outer surface of the lid body 4, and the motor drive circuit unit 5, the control circuit unit 6, the filter circuit unit 7 and the motor unit 1 are connected to the battery 4 (not shown) via the connector 4a. Electric power is supplied to the electric motor. A configuration for supplying power will be described in detail below.

前記蓋体４を貫通する蓋体側電源端子１１ａ，１１ｂの一端がコネクタ４ａの内部に臨み、他端が蓋体４の内部へ向って突出している。一方、前記フィルタ回路部７には樹脂基板１０を貫通する状態でフィルタ回路側電源端子１２ａ，１２ｂが設けられ、該フィルタ回路側電源端子１２ａ，１２ｂに前記蓋体側電源端子１１ａ，１１ｂが挿通され、溶接結合されている。   One end of the lid side power terminals 11 a and 11 b penetrating the lid 4 faces the inside of the connector 4 a, and the other end projects toward the inside of the lid 4. On the other hand, the filter circuit side power terminals 12a and 12b are provided in the filter circuit portion 7 so as to penetrate the resin substrate 10, and the lid body side power terminals 11a and 11b are inserted into the filter circuit side power terminals 12a and 12b. Are welded and joined.

また、前記フィルタ回路部７には、樹脂基板１０を貫通するフィルタ回路側通電端子１３ａ，１３ｂが設けられる一方、前記金属基板８には駆動回路側第１通電端子１４ａ，１４ｂが突出して設けられ、該駆動回路側第１通電端子１４ａ，１４ｂがプリント基板９に形成された切欠部９ａを介してフィルタ回路側通電端子１３ａ，１３ｂに接続されている。   The filter circuit unit 7 is provided with filter circuit side energization terminals 13a and 13b penetrating the resin substrate 10, while the metal substrate 8 is provided with drive circuit side first energization terminals 14a and 14b protruding. The drive circuit side first energization terminals 14a and 14b are connected to the filter circuit side energization terminals 13a and 13b through notches 9a formed in the printed circuit board 9.

また、前記金属基板８には３相分の駆動回路側第２通電端子１５ａ〜１５ｃが設けられる一方、前記モータユニット１には電動モータに接続された３相分のモータ側通電端子１６ａ〜１６ｃが突出して設けられ、該３相分のモータ側通電端子１６ａ〜１６ｃがＥＣＵハウジング３に形成された長孔３ａを介して駆動回路側第２通電端子１５ａ〜１５ｃに接続されている。   The metal substrate 8 is provided with drive circuit side second energization terminals 15a to 15c for three phases, while the motor unit 1 has motor phase energization terminals 16a to 16c for three phases connected to an electric motor. The motor side energization terminals 16 a to 16 c for the three phases are connected to the drive circuit side second energization terminals 15 a to 15 c through the long holes 3 a formed in the ECU housing 3.

前記駆動回路側第１通電端子１４ａ，１４ｂと前記３相分のモータ側通電端子１６ａ〜１６ｃとは以下のようにして前記金属基板８に取り付けられている。図３に示すようにブロック１７が樹脂で形成され、該ブロック１７に形成された突起部１７ａ，１７ｂを金属基板８の貫通孔に嵌合させることにより、該ブロック１７が金属基板８に結合されている。このブロック１７に３相分の前記駆動回路側第２通電端子１５ａ〜１５ｃの上端の軸部２４と前記駆動回路側第１通電端子１４ａ，１４ｂの基端部２６の近傍とがモールドされている。   The drive circuit side first energization terminals 14a and 14b and the three-phase motor side energization terminals 16a to 16c are attached to the metal substrate 8 as follows. As shown in FIG. 3, the block 17 is made of resin, and the projections 17 a and 17 b formed on the block 17 are fitted into the through holes of the metal substrate 8, so that the block 17 is coupled to the metal substrate 8. ing. The block 17 is molded with the shaft 24 at the upper end of the drive circuit side second energization terminals 15a to 15c for three phases and the vicinity of the base end part 26 of the drive circuit side first energization terminals 14a and 14b. .

即ち、図３に示すように、ブロック１７の一方の面に３つの凹部１７ｃが形成され、該凹部１７ｃに３相分の駆動回路側第２通電端子１５ａ〜１５ｃの軸部２４が入り込んだ状態で駆動回路側第２通電端子１５ａ〜１５ｃがモールドされ、該駆動回路側第２通電端子１５ａ〜１５ｃの基端部２７は金属基板８の配線回路へ向かって突出し、該配線回路に接続されている。駆動回路側第２通電端子１５ａ〜１５ｃの上端部は、軸部２４の上下位置がブロック１７の凹部１７ｃの内壁に埋設された状態で支持されている。なお、モールドすることなく、凹部１７ｃの内部に軸部２４を貫通させる構成を採用してもよい。一方、前記駆動回路側第１通電端子１４ａ，１４ｂは、基端部２６の近傍がモールドされ、先端部２８がフィルタ回路７へ向って伸びており、基端部２６はブロック１７から金属基板８の配線回路へ向かって突出し、該配線回路に接続されている。   That is, as shown in FIG. 3, three concave portions 17c are formed on one surface of the block 17, and the shaft portions 24 of the drive circuit side second energization terminals 15a to 15c for three phases enter the concave portion 17c. Then, the drive circuit side second energization terminals 15a to 15c are molded, and the base end portions 27 of the drive circuit side second energization terminals 15a to 15c protrude toward the wiring circuit of the metal substrate 8 and are connected to the wiring circuit. Yes. The upper end portions of the drive circuit side second energization terminals 15 a to 15 c are supported in a state where the vertical position of the shaft portion 24 is embedded in the inner wall of the concave portion 17 c of the block 17. In addition, you may employ | adopt the structure which penetrates the axial part 24 inside the recessed part 17c, without molding. On the other hand, the drive circuit side first energization terminals 14a and 14b are molded in the vicinity of the base end portion 26, the tip end portion 28 extends toward the filter circuit 7, and the base end portion 26 extends from the block 17 to the metal substrate 8. Projecting toward the wiring circuit and connected to the wiring circuit.

前記外装部１ｄの内部には、図２に示すように電動モータの出力軸の回転数を検出するレゾルバ１８が設けられている。該レゾルバ１８は、出力軸に固定された図示しないロータと、該ロータを囲繞するステータ１８ａとから構成されている。レゾルバ１８が検出した出力軸の回転数を前記制御回路部６へ送るため、軸心方向に沿って配置された６本のレゾルバ端子１８ｂが設けられ、該レゾルバ端子１８ｂをＥＣＵハウジング３の長孔３ｂおよび金属基板８の切欠部８ａに挿通させてコネクタ１９に結合することにより、レゾルバ１８と制御回路部６とが接続されている。   As shown in FIG. 2, a resolver 18 for detecting the rotation speed of the output shaft of the electric motor is provided in the exterior portion 1d. The resolver 18 is composed of a rotor (not shown) fixed to the output shaft and a stator 18a surrounding the rotor. In order to send the rotational speed of the output shaft detected by the resolver 18 to the control circuit unit 6, six resolver terminals 18 b arranged along the axial direction are provided, and the resolver terminals 18 b are connected to the long holes of the ECU housing 3. The resolver 18 and the control circuit unit 6 are connected by being inserted into 3b and the notch 8a of the metal substrate 8 and coupled to the connector 19.

ここで、本実施の形態では３相分の駆動回路側第２通電端子１５ａ〜１５ｃを第１通電端子とし、３相分のモータ側通電端子１６ａ〜１６ｃを第２通電端子としたときの状態を詳細に説明する。ここでは、夫々の駆動回路側第２通電端子１５ａ〜１５ｃは同一の形状であり、夫々のモータ側通電端子１６ａ〜１６ｃは同一の形状なので、単一の駆動回路側第２通電端子１５ａと単一のモータ側通電端子１６ａとの接続構造について説明する。   Here, in the present embodiment, the drive circuit side second energization terminals 15a to 15c for three phases are the first energization terminals, and the motor side energization terminals 16a to 16c for the three phases are the second energization terminals. Will be described in detail. Here, each of the drive circuit side second energization terminals 15a to 15c has the same shape, and each of the motor side energization terminals 16a to 16c has the same shape. A connection structure with one motor side energizing terminal 16a will be described.

帯板状部材からなる駆動回路側第２通電端子１５ａは、前記のように軸部２４を図３のブロック１７の凹部１７ｃの中央に配置した状態で、モールドされている。一方、モータ側通電端子１６ａは、図１，図３，図４に示すように帯板状部材に先端部２１ｂから基端部２９へ向かって切欠部２０を形成することにより、前記軸部２４と直角な方向から軸部２４を挟持する一対の挟持部２１を設けて構成されている。   The drive circuit side second energizing terminal 15a made of a strip plate member is molded in a state where the shaft portion 24 is arranged at the center of the concave portion 17c of the block 17 in FIG. 3 as described above. On the other hand, the motor-side energizing terminal 16a is formed by forming a notch 20 in the band plate member from the distal end portion 21b toward the proximal end portion 29 as shown in FIGS. A pair of clamping parts 21 that clamp the shaft part 24 from a direction perpendicular to the axis are provided.

そして、モータ側通電端子１６ａの一対の挟持部２１を駆動回路側第２通電端子１５ａの軸部２４へ向って前進させ、該軸部２４をモータ側通電端子１６ａの切欠部２０の底部２０ｂへ向って相対的に押圧したときに、一対の挟持部２１の先端部２１ｂが閉じる方向へ一対の挟持部２１の夫々に回転力を生じさせる回転力発生手段がモータ側通電端子１６ａに設けられている。   And a pair of clamping part 21 of the motor side electricity supply terminal 16a is advanced toward the shaft part 24 of the drive circuit side 2nd electricity supply terminal 15a, and this shaft part 24 is moved to the bottom part 20b of the notch part 20 of the motor side electricity supply terminal 16a. The motor-side energizing terminal 16a is provided with a rotational force generating means for generating a rotational force in each of the pair of sandwiching portions 21 in a direction in which the distal end portions 21b of the pair of sandwiching portions 21 are closed when pressed toward each other. Yes.

前記回転力発生手段として、前記切欠部２０の底部２０ｂからモータ側通電端子１６ａの基端部２９へ向かって分岐する第１スリット２２が形成されている。これにより、夫々の挟持部２１の内側であって切欠部２０と第１スリット２２の下部との間には、被押圧部２１ｃが形成されている。この被押圧部２１ｃが駆動回路側第２通電端子１５ａの軸部２４によってモータ側通電端子１６ａの基端部へ向って押圧されることにより、一対の挟持部２１の先端部２１ｂが閉じる方向へ、一対の挟持部２１の夫々に撓み中心Ａを中心とする回転力が生じる。   As the rotational force generating means, a first slit 22 is formed that branches from the bottom portion 20b of the notch portion 20 toward the base end portion 29 of the motor side energizing terminal 16a. As a result, a pressed portion 21 c is formed between each notch portion 21 and between the notch portion 20 and the lower portion of the first slit 22. The pressed portion 21c is pressed toward the proximal end portion of the motor side energizing terminal 16a by the shaft portion 24 of the drive circuit side second energizing terminal 15a, so that the distal end portions 21b of the pair of sandwiching portions 21 are closed. In each of the pair of sandwiching portions 21, a rotational force centered on the bending center A is generated.

一方、軸部２４を切欠部２０の底部２０ｂへ向って相対的に押圧する押圧力は前記駆動回路側第２通電端子１５ａ〜１５ｃと前記モータ側通電端子１６ａ〜１６ｃとの組み付けによる組付力により付与される。   On the other hand, the pressing force for relatively pressing the shaft portion 24 toward the bottom portion 20b of the notch portion 20 is an assembling force by assembling the drive circuit side second energizing terminals 15a to 15c and the motor side energizing terminals 16a to 16c. It is given by.

モータ側通電端子１６ａは帯板状部材をプレスで打ち抜いて形成され、切欠部２０および第１スリット２２を挟んだ両側に一対の挟持部２１が形成されている。また、切欠部２０の隙間寸法Ｇは、軸部２４の厚さ寸法Ｔに対して僅かに小さく設定されている。このほか、夫々の挟持部２１の先端部２１ｂにおける切欠部２０の開口部２０ａ側には、切欠部２０へ軸部２４を案内するためのガイド面２１ａが形成されている。該ガイド面２１ａは、挟持部２１の内面と端面との角部を約４５度にカットして形成したものである。   The motor-side energizing terminal 16a is formed by punching a band plate-like member with a press, and a pair of holding portions 21 are formed on both sides of the cutout portion 20 and the first slit 22. Further, the gap dimension G of the notch 20 is set slightly smaller than the thickness dimension T of the shaft 24. In addition, a guide surface 21 a for guiding the shaft portion 24 to the notch 20 is formed on the opening 20 a side of the notch 20 at the tip 21 b of each clamping portion 21. The guide surface 21a is formed by cutting a corner portion between the inner surface and the end surface of the sandwiching portion 21 at about 45 degrees.

駆動回路側第２通電端子１５ａとモータ側通電端子１６ａとについて説明したが、その他の駆動回路側第２通電端子１５ｂ，１５ｃとモータ側通電端子１６ｂ，１６ｃとについても同じ構成なので、説明を省略する。   The drive circuit side second energization terminal 15a and the motor side energization terminal 16a have been described, but the other drive circuit side second energization terminals 15b and 15c and the motor side energization terminals 16b and 16c have the same configuration, and thus the description thereof is omitted. To do.

また、前記駆動回路側第１通電端子１４ａ，１４ｂとフィルタ回路側通電端子１３ａ，１３ｂとについても同じ構成なので、説明を省略する。なお、フィルタ回路側通電端子１３ａ，１３ｂは第１通電端子に相当し、駆動回路側第１通電端子１４ａ，１４ｂは第２通電端子に相当する。
（実施の形態１の作用）
次に、本実施の形態の端子接続部および電動パワーステアリング装置の作用を説明する。 Since the drive circuit side first energization terminals 14a and 14b and the filter circuit side energization terminals 13a and 13b have the same configuration, description thereof is omitted. The filter circuit side energization terminals 13a and 13b correspond to first energization terminals, and the drive circuit side first energization terminals 14a and 14b correspond to second energization terminals.
(Operation of Embodiment 1)
Next, the operation of the terminal connection portion and the electric power steering device of the present embodiment will be described.

この実施の形態によれば、駆動回路側第２通電端子１５ａとモータ側通電端子１６ａとを組み付ける際に、該駆動回路側第２通電端子１５ａの軸部２４がモータ側通電端子１６ａ基端部２９へ向って押圧される状態で、駆動回路側第２通電端子１５ａとモータ側通電端子１６ａとが組み付けられる。このため、図１（ｂ）に示すように、駆動回路側第２通電端子１５ａとモータ側通電端子１６ａとの組み付けによる組付力Ｆがモータ側通電端子１６ａ回転力発生手段に作用し、一対の挟持部２１の夫々には回転力が生じ、一対の挟持部２１の先端部２１ｂが閉じる。   According to this embodiment, when the drive circuit side second energization terminal 15a and the motor side energization terminal 16a are assembled, the shaft portion 24 of the drive circuit side second energization terminal 15a is connected to the base end portion of the motor side energization terminal 16a. The drive circuit side second energizing terminal 15a and the motor side energizing terminal 16a are assembled in a state of being pressed toward 29. For this reason, as shown in FIG. 1B, the assembly force F due to the assembly of the drive circuit side second energizing terminal 15a and the motor side energizing terminal 16a acts on the motor side energizing terminal 16a rotational force generating means. A rotational force is generated in each of the sandwiching portions 21, and the tip portions 21 b of the pair of sandwiching portions 21 are closed.

具体的に説明すると、夫々の挟持部２１の内側であって切欠部２０と第１スリット２２の下部との間に被押圧部２１ｃが形成され、前記組付力Ｆにより該被押圧部２１ｃが軸部２４によって図１（ｂ）に示すように矢印ｆ1の方向へ押圧されることから、夫々の挟持部２１に夫々の挟持部２１の基端部の撓み中心Ａを中心とする回転力が作用し、夫々の挟持部２１の回転により夫々の挟持部２１の先端部２１ｂが矢印ｆ2の方向へ移動して閉じ、該先端部２１ｂと軸部２４との間に圧接力が作用する。 More specifically, a pressed portion 21c is formed inside each clamping portion 21 and between the notch portion 20 and the lower portion of the first slit 22, and the pressed portion 21c is formed by the assembly force F. Since the shaft portion 24 is pressed in the direction of the arrow f 1 as shown in FIG. 1B, the rotational force about the bending center A of the proximal end portion of each clamping portion 21 is caused by each clamping portion 21. There acts, closed by moving the distal end portion 21b of the clamping portion 21 of each is in the direction of arrow f 2 by the rotation holding portion 21 of the respective press contact force acts between the tip portion 21b and the shaft portion 24 .

この端子接続部によれば、組付力Ｆと回転力発生手段との作用により夫々の挟持部２１には夫々の挟持部２１の先端部２１ｂが閉じる方向へ回転力が生じるので、挟持部２１と軸部２４との圧接力の低下が抑制され、従来のように振動あるいは経時的な劣化等により弾性変形による復帰力が消失する構成に比べ、圧接力の低下が抑制され、電気的な接続が確保される。   According to this terminal connecting portion, a rotational force is generated in the direction in which the tip end portion 21b of each clamping portion 21 is closed in each clamping portion 21 by the action of the assembly force F and the rotational force generating means. The reduction of the pressure contact force between the shaft portion 24 and the shaft portion 24 is suppressed, and the pressure contact force is prevented from lowering as compared with the conventional configuration in which the return force due to elastic deformation disappears due to vibration or deterioration with time. Is secured.

この端子接続部によれば、回転力発生手段としてモータ側通電端子１６ａに第１スリット２２を形成するだけなので、構造が簡単である。
（ｂ）実施の形態２
次に、実施の形態２について説明する。なお、この実施の形態は実施の形態１の一部を変更したものなので、同一部分には同一符号を付して説明を省略し、異なる部分のみを説明する。 According to this terminal connection portion, the first slit 22 is simply formed in the motor-side energization terminal 16a as a rotational force generating means, so that the structure is simple.
(B) Embodiment 2
Next, a second embodiment will be described. Since this embodiment is obtained by changing a part of the first embodiment, the same portions are denoted by the same reference numerals, description thereof is omitted, and only different portions are described.

実施の形態１の図１と対応する図面を図５に示すように、この実施の形態は、回転力発生手段として、前記切欠部２０の底部２０ｂからモータ側通電端子１６ａの基端部２９へ向かって第２スリット２３を形成し、該第２スリット２３の閉端部から夫々の挟持部２１の外面へ向って第２スリット２３よりも幅寸法の大きな第３スリット３０を形成したものである。この第３スリット３０の両端部は、応力集中を緩和するために内周面が円弧形状に形成されている。この場合は、３スリット２４と挟持部２１の外周面との間の断面積が小さくなり、この部分が撓み中心Ａとなる。   As shown in FIG. 5 which corresponds to FIG. 1 of the first embodiment, this embodiment serves as a rotational force generating means from the bottom 20b of the notch 20 to the base end 29 of the motor side energizing terminal 16a. The second slit 23 is formed toward the outer surface of each sandwiching portion 21 from the closed end portion of the second slit 23, and the third slit 30 having a larger width than the second slit 23 is formed. . At both ends of the third slit 30, the inner peripheral surface is formed in an arc shape in order to alleviate stress concentration. In this case, the cross-sectional area between the three slits 24 and the outer peripheral surface of the sandwiching portion 21 becomes small, and this portion becomes the bending center A.

この実施の形態によれば、夫々の挟持部２１の内側であって切欠部２０と第３スリット３０との間に被押圧部２１ｃが形成され、前記組付力Ｆにより図５（ｂ）に示すように軸部２４が押圧され該軸部２４により被押圧部２１ｃが矢印ｆ1の方向へ押圧されることから、夫々の挟持部２１に夫々の挟持部２１の基端部の撓み中心Ａを中心とする回転力が作用し、夫々の挟持部２１の回転により夫々の挟持部２１の先端部２１ｂが矢印ｆ2の方向へ移動して閉じ、該先端部２１ｂと軸部２４との間に圧接力が作用する。 According to this embodiment, the pressed portion 21c is formed between the notch portion 20 and the third slit 30 inside each of the clamping portions 21, and the assembly force F causes the portion shown in FIG. since the pressed portion 21c is pressed in the direction of arrow f 1 by the shaft portion 24 the shaft 24 is pushed as shown, deflection of the proximal end portion of each holding portion 21 to the clamping portion 21 of the respective center a and rotational force acting around the closed to move the distal end portion 21b of the clamping portion 21 of each is in the direction of arrow f 2 by the rotation holding portion 21 of each, between the tip portion 21b and the shaft portion 24 The pressure contact force acts on.

この端子接続部によれば、回転力発生手段としてモータ側通電端子１６ａに第２スリット２３と第３スリット３０とを形成するだけなので、加工が容易である。
（ｃ）実施の形態３
次に、実施の形態３について説明する。なお、この実施の形態も実施の形態１の一部を変更したものなので、同一部分には同一符号を付して説明を省略し、異なる部分のみを説明する。 According to this terminal connection portion, since the second slit 23 and the third slit 30 are only formed in the motor-side energizing terminal 16a as the rotational force generating means, processing is easy.
(C) Embodiment 3
Next, Embodiment 3 will be described. Since this embodiment is also obtained by changing a part of the first embodiment, the same portions are denoted by the same reference numerals, description thereof is omitted, and only different portions are described.

実施の形態１の図１と対応する図面を図６に示すように、この実施の形態は、回転力発生手段として、前記切欠部２０とモータ側通電端子１６ａの基端部２９との間に貫通孔２５を形成したものである。   As shown in FIG. 6 which is a drawing corresponding to FIG. 1 of the first embodiment, this embodiment has a rotational force generating means between the notch portion 20 and the base end portion 29 of the motor side energizing terminal 16a. A through hole 25 is formed.

この実施の形態によれば、夫々の挟持部２１の内側であって切欠部２０と貫通孔２５との間に被押圧部２１ｃが形成され、前記組付力Ｆにより図６（ｂ）に示すように軸部２４が押圧され該軸部２４により被押圧部２１ｃが矢印ｆ1の方向へ押圧されることから、夫々の挟持部２１に夫々の挟持部２１の基端部の撓み中心Ａを中心とする回転力が作用し、夫々の挟持部２１の回転により夫々の挟持部２１の先端部２１ｂが閉じて、該先端部２１ｂと軸部２４との間に圧接力が作用する。 According to this embodiment, a pressed portion 21c is formed between the notch portion 20 and the through hole 25 inside each of the clamping portions 21, and the assembly force F shows the portion shown in FIG. 6 (b). as the shaft portion 24 the shaft portion 24 is pressed from the pressed portion 21c is pressed in the direction of arrow f 1, the deflection center a of the base end portion of each holding portion 21 to the clamping portion 21 of the respective The center rotational force acts, and the rotation of each clamping part 21 closes the distal end part 21b of each clamping part 21, and the pressure contact force acts between the distal end part 21b and the shaft part 24.

この端子接続部によれば、回転力発生手段として第２通電端子１６ａに貫通孔２５を形成するだけなので、加工が容易である。
（ｄ）実施の形態４
次に、実施の形態４について説明する。なお、この実施の形態も実施の形態１の一部を変更したものなので、同一部分には同一符号を付して説明を省略し、異なる部分のみを説明する。 According to this terminal connection part, since the through-hole 25 is only formed in the 2nd electricity supply terminal 16a as a rotational force generation means, a process is easy.
(D) Embodiment 4
Next, a fourth embodiment will be described. Since this embodiment is also obtained by changing a part of the first embodiment, the same portions are denoted by the same reference numerals, description thereof is omitted, and only different portions are described.

実施の形態１の図１と対応する図面を図７に示すように、この実施の形態は、回転力発生手段として、前記切欠部２０からモータ側通電端子１６ａの基端部２９へ向って第４スリット３１を形成したものである。   As shown in FIG. 7 which is a drawing corresponding to FIG. 1 of the first embodiment, this embodiment has a second structure as a rotational force generating means from the notch portion 20 toward the base end portion 29 of the motor side energizing terminal 16a. 4 slits 31 are formed.

この実施の形態によれば、夫々の挟持部の２１内側であって切欠部２０の基端部２９側であって第４スリット３１の外側に被押圧部２１ｃが形成され、前記組付力Ｆにより図７（ｂ）に示すように軸部２４が押圧され該軸部２４により被押圧部２１ｃが矢印ｆ1の方向へ押圧されることから、夫々の挟持部２１に夫々の挟持部２１の基端部の撓み中心Ａを中心とする回転力が作用し、夫々の挟持部２１の回転により夫々の挟持部２１の先端部２１ｂが閉じて、該先端部２１ｂと軸部２４との間に圧接力が作用する。 According to this embodiment, the pressed portion 21c is formed on the inner side 21 of each clamping portion, on the proximal end portion 29 side of the notch portion 20 and on the outer side of the fourth slit 31, and the assembly force F by the shaft portion 24 the shaft 24 is pushed as shown in FIG. 7 (b) since the pressed portion 21c is pressed in the direction of arrow f 1, the clamping portion 21 of each of the respective holding portion 21 A rotational force acts around the bending center A of the base end, and the rotation of each clamping part 21 closes the distal end part 21b of each clamping part 21, and the gap between the distal end part 21b and the shaft part 24. A pressure contact force acts.

この端子接続部によれば、回転力発生手段としてモータ側通電端子１６ａに第４スリット３１を形成するだけなので、加工が容易である。
（ｅ）実施の形態５
最後に、実施の形態５について説明する。なお、この実施の形態は実施の形態１〜４の一部を変更したものなので、同一部分には同一符号を付して説明を省略し、異なる部分のみを説明する。 According to this terminal connecting portion, the fourth slit 31 is only formed in the motor-side energizing terminal 16a as a rotational force generating means, so that processing is easy.
(E) Embodiment 5
Finally, Embodiment 5 will be described. In addition, since this embodiment changes a part of Embodiment 1-4, the same code | symbol is attached | subjected to the same part, description is abbreviate | omitted, and only a different part is demonstrated.

この実施の形態は、実施の形態１〜４の図１，５，６，７の一部を変更して図８としたものである。図８に示すように、切欠部２０の開口端２０ａに位置する一対の挟持部２１の対向する内面には、突起部２１ｄが夫々形成されている。   This embodiment is obtained by changing a part of FIGS. 1, 5, 6 and 7 of the first to fourth embodiments to FIG. As shown in FIG. 8, projections 21 d are formed on the opposing inner surfaces of the pair of sandwiching portions 21 positioned at the opening end 20 a of the notch portion 20.

挟持部２１の内面に突起部２１ｄが形成されているので、一対の挟持部２１に挟持された軸部２４が、切欠部２０から抜けるのを突起部２１ｄが防止する。   Since the protruding portion 21d is formed on the inner surface of the holding portion 21, the protruding portion 21d prevents the shaft portion 24 held between the pair of holding portions 21 from coming out of the notch portion 20.

図２に示すように、電動パワーステアリング装置は、電動モータを収容したモータユニット１と、前記モータを制御する制御手段を収容した制御ユニット２とにより構成され、前記制御手段は、モータ駆動回路部５とフィルタ回路部７とを、前記電動モータの軸方向に対向させて配置されている。そして、前記モータ駆動回路部５と前記フィルタ回路部７との間、および前記モータ駆動回路部５と前記電動モータとの間が端子接続部を介して電気接続されている。   As shown in FIG. 2, the electric power steering apparatus includes a motor unit 1 that houses an electric motor, and a control unit 2 that houses a control unit that controls the motor. The control unit includes a motor drive circuit unit. 5 and the filter circuit unit 7 are arranged to face each other in the axial direction of the electric motor. The motor drive circuit unit 5 and the filter circuit unit 7 and the motor drive circuit unit 5 and the electric motor are electrically connected via a terminal connection unit.

この端子接続部は、軸部２４を有する駆動回路側通電端子１５ａ〜１５ｃと、帯板状部材に該帯板状部材の先端部から基端部へ向かって切欠部２０を形成して軸部２４を軸部２４と直角な方向から挟持する一対の挟持部２１を設けたモータ側通電端子１６ａ〜１６ｃとにより構成され、軸部２４を切欠部２０の底部２０ｂへ向って押圧したときに、一対の挟持部２１の先端部２１ｂが閉じる方向へ一対の挟持部２１の夫々に回転力を生じさせる回転力発生手段が、図１，図５，図６，図７のように、モータ側通電端子１６ａ〜１６ｃに設けられ、軸部２４を切欠部２０の底部２０ｂへ向って相対的に押圧する押圧力ｆ1は駆動回路側通電端子１５ａ〜１５ｃとモータ側通電端子１６ａ〜１６ｃとの組み付けによる組付力Ｆにより付与される
該端子接続部によって、モータ駆動回路部５とフィルタ回路部７との間、およびモータ駆動回路部５と電動モータとの間が電気接続されている。 This terminal connection portion includes drive circuit side energizing terminals 15 a to 15 c having a shaft portion 24, and a notch portion 20 formed in the strip plate member from the distal end portion to the proximal end portion of the strip plate member. When the shaft portion 24 is pressed toward the bottom portion 20b of the notch portion 20, the motor-side energizing terminals 16a to 16c are provided with a pair of sandwiching portions 21 that sandwich the 24 from the direction perpendicular to the shaft portion 24. Rotational force generating means for generating a rotational force in each of the pair of sandwiching portions 21 in the direction in which the distal end portions 21b of the pair of sandwiching portions 21 are closed is motor side energization as shown in FIGS. The pressing force f 1 provided on the terminals 16a to 16c and relatively pressing the shaft portion 24 toward the bottom portion 20b of the notch 20 is an assembly of the drive circuit side energizing terminals 15a to 15c and the motor side energizing terminals 16a to 16c. Given by the assembly force F by By a child connections, between the motor driving circuit 5 and the filter circuit 7, and between the motor driving circuit 5 and the electric motor are electrically connected.

この実施の形態によれば、モータユニット１と制御ユニット２との組み付けによる組付力Ｆにより軸部２４が切欠部２０の底部２０ｂへ向って相対的に押圧され、該組付力Ｆが回転力発生手段に作用することによりモータ側通電端子１６ａ〜１６ｃの夫々の挟持部２１に回転力が生じ、夫々の挟持部２１の回転により夫々の挟持部２１の先端部２１ｂが閉じて、該先端部２１ｂと軸部２４との間に圧接力が作用する。   According to this embodiment, the shaft portion 24 is relatively pressed toward the bottom portion 20b of the notch portion 20 by the assembly force F due to the assembly of the motor unit 1 and the control unit 2, and the assembly force F rotates. By acting on the force generating means, a rotational force is generated in each clamping part 21 of the motor side energization terminals 16a to 16c, and the leading end part 21b of each clamping part 21 is closed by the rotation of each clamping part 21, and the leading end A pressure contact force acts between the portion 21 b and the shaft portion 24.

この電動パワーステアリング装置によれば、請求項１に記載の端子接続部を介して接続するので、組付力Ｆと回転力発生手段との作用により、モータ側通電端子１６ａ〜１６ｃの夫々の挟持部２１には夫々の挟持部２１の先端部２１ｂが閉じる方向へ回転力が生じ、挟持部２１とモータ側通電端子１６ａ〜１６ｃの軸部２４との圧接力の低下が抑制され、従来のように振動あるいは経時的な劣化等により弾性変形による復帰力が消失する構成に比べ、圧接力の低下が抑制され、電気的な接続が確保される。   According to this electric power steering apparatus, since the connection is made via the terminal connection portion according to claim 1, the motor-side energization terminals 16a to 16c are clamped by the action of the assembly force F and the rotational force generating means. A rotational force is generated in the portion 21 in the direction in which the distal end portion 21b of each clamping portion 21 is closed, and a decrease in the pressure contact force between the clamping portion 21 and the shaft portion 24 of the motor-side energization terminals 16a to 16c is suppressed. Compared with a configuration in which the restoring force due to elastic deformation disappears due to vibration or deterioration over time, the decrease in the pressure contact force is suppressed and electrical connection is ensured.

なお、電動アクチュエータが電動パワーステアリング装置である場合を示したが、電動アクチュエータは電動パワーステアリング装置に限定されるものではない。モータ駆動回路部５と電動モータとの間を電気接続した場合を示したが、前記フィルタ回路部７と電動モータとの間を電気接続してもよい。   In addition, although the case where the electric actuator was an electric power steering device was shown, the electric actuator is not limited to the electric power steering device. Although the case where the motor drive circuit unit 5 and the electric motor are electrically connected is shown, the filter circuit unit 7 and the electric motor may be electrically connected.

（イ）
請求項１に記載の端子接続部において、
前記回転力発生手段として、前記切欠部の底部から前記第２通電端子の基端部へ向かって第２スリットを形成し、該第２スリットの閉端部から夫々の挟持部の外面へ向って第３スリットを形成したことを特徴とする。 (I)
In the terminal connection part of Claim 1,
As the rotational force generating means, a second slit is formed from the bottom of the notch portion toward the base end portion of the second energizing terminal, and from the closed end portion of the second slit toward the outer surface of each clamping portion. A third slit is formed.

（イ）に係る端子接続部によれば、回転力発生手段として第２通電端子に第２スリットと第３スリットとを形成するだけなので、加工が容易である。   According to the terminal connection part which concerns on (a), since a 2nd slit and a 3rd slit are only formed in a 2nd electricity supply terminal as a rotational force generation means, a process is easy.

（ロ）
請求項１に記載の端子接続部において、
前記回転力発生手段として、前記切欠部と前記第２通電端子の基端部との間に貫通孔を形成したことを特徴とする端子接続部。 (B)
In the terminal connection part of Claim 1,
A terminal connection part, wherein a through hole is formed between the notch part and a base end part of the second energizing terminal as the rotational force generating means.

（ロ）に係る端子接続部によれば、回転力発生手段として第２通電端子に貫通孔を形成するだけなので、加工が容易である。   According to the terminal connection part which concerns on (b), since a through-hole is only formed in a 2nd electricity supply terminal as a rotational force generation means, a process is easy.

１…モータユニット
２…制御ユニット
５…モータ駆動回路部
７…フィルタ回路部
１５ａ…駆動回路側通電端子（第１通電端子）
１６ａ…モータ側通電端子（第２通電端子）
２０…切欠部
２１…挟持部
２１ｂ…先端部
２２…第１スリット（回転力発生手段）
２３…第２スリット（回転力発生手段）
２４…軸部
２５…貫通孔（回転力発生手段）
３０…第３スリット（回転力発生手段） DESCRIPTION OF SYMBOLS 1 ... Motor unit 2 ... Control unit 5 ... Motor drive circuit part 7 ... Filter circuit part 15a ... Drive circuit side energization terminal (1st energization terminal)
16a: Motor side energization terminal (second energization terminal)
DESCRIPTION OF SYMBOLS 20 ... Notch part 21 ... clamping part 21b ... front-end | tip part 22 ... 1st slit (rotation force generation means)
23. Second slit (rotational force generating means)
24 ... Shaft 25 ... Through hole (rotational force generating means)
30 ... Third slit (rotational force generating means)

Claims (1)

電動モータを収容したモータユニットと、前記電動モータを制御する制御手段を収容した制御ユニットとにより構成し、
前記制御手段は、モータ駆動回路部とフィルタ回路部とを、前記電動モータの軸方向に対向させて配置し、
前記モータ駆動回路部と前記フィルタ回路部との間、または、前記モータ駆動回路部もしくは前記フィルタ回路部と前記電動モータとの間を電気接続した電動アクチュエータであって、
軸部を有する第１通電端子と、帯板状部材の先端部から基端部へ向かって切欠部を形成して前記第１通電端子の軸部を該軸部と直角な方向から挟持する一対の挟持部を設けた第２通電端子と、金属基板に固定され、前記第１通電端子の軸部が設けられたブロックと、により構成し、
前記軸部を前記切欠部の底部へ向って押圧したときに、前記一対の挟持部の先端部が閉じる方向へ前記一対の挟持部の夫々に回転力を生じさせる回転力発生手段を前記第２通電端子に設け、前記軸部を切欠部の底部へ向って相対的に押圧する押圧力は前記第１通電端子と前記第２通電端子との組み付けによる組付力により付与されるようにした端子接続部を設け、
前記切欠部と回転力発生手段との間に、前記軸部を切欠部の底部方向へ挿入した際に前記軸部の先端部に押圧されることにより、前記回転力発生手段を介して前記一対の挟持部の先端部に閉じる方向への回転力を付与する一対の被押圧部を形成し、
前記端子接続部によって、前記モータ駆動回路部と前記フィルタ回路部との間、または、前記モータ駆動回路部もしくは前記フィルタ回路部と前記電動モータとの間を電気接続したことを特徴とする電動アクチュエータ。 A motor unit containing an electric motor, and a control unit containing a control means for controlling the electric motor,
The control means is arranged such that the motor drive circuit unit and the filter circuit unit are opposed to each other in the axial direction of the electric motor,
An electric actuator electrically connected between the motor drive circuit unit and the filter circuit unit or between the motor drive circuit unit or the filter circuit unit and the electric motor;
A first energizing terminal having a shaft portion and a pair of forming a notch portion from the distal end portion to the base end portion of the band plate member and sandwiching the shaft portion of the first energizing terminal from a direction perpendicular to the shaft portion. A second energizing terminal provided with a sandwiching portion, and a block fixed to a metal substrate and provided with a shaft portion of the first energizing terminal ,
And a second rotational force generating means for generating a rotational force in each of the pair of sandwiching portions in a direction in which the distal ends of the pair of sandwiching portions are closed when the shaft portion is pressed toward the bottom of the notch portion. A terminal provided on the energizing terminal, wherein the pressing force for relatively pressing the shaft portion toward the bottom of the notch is applied by an assembling force by assembling the first energizing terminal and the second energizing terminal. Providing a connection,
Between the rotary force generating unit and front Symbol notch, by being pressed by the tip end portion of the shaft portion upon inserting the shaft portion to the bottom direction of the notch, the via the rotational force generator Forming a pair of pressed parts that apply a rotational force in the closing direction to the distal ends of the pair of sandwiching parts;
An electric actuator characterized in that the terminal connecting portion electrically connects the motor driving circuit portion and the filter circuit portion or between the motor driving circuit portion or the filter circuit portion and the electric motor. .
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