JP2003227767A - Torque detecting apparatus and electric power steering apparatus using the same - Google Patents
Torque detecting apparatus and electric power steering apparatus using the sameInfo
- Publication number
- JP2003227767A JP2003227767A JP2002027009A JP2002027009A JP2003227767A JP 2003227767 A JP2003227767 A JP 2003227767A JP 2002027009 A JP2002027009 A JP 2002027009A JP 2002027009 A JP2002027009 A JP 2002027009A JP 2003227767 A JP2003227767 A JP 2003227767A
- Authority
- JP
- Japan
- Prior art keywords
- torque
- housing
- coil
- connector
- holding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Power Steering Mechanism (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は回転体に加わるトル
クを検出するトルク検出装置及びこれを用いた電動式パ
ワーステアリング装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a torque detecting device for detecting a torque applied to a rotating body and an electric power steering device using the same.
【０００２】[0002]
【従来の技術】車両用の電動式パワーステアリング装置
としては、例えば操舵輪に繋がる入力軸及び該入力軸に
トーションバーを介して同軸的に繋がる出力軸の相対角
変位量によって前記入力軸に加わる操舵トルクを検出す
るトルクセンサと、該トルクセンサが検出したトルクに
基づいて操舵補助用のモータを駆動する制御部と、前記
モータの回転力を舵取機構に伝動する伝動手段とを備え
ており、操舵輪の回転に応じた舵取機構の動作を前記モ
ータの回転により補助し、舵取りのための運転者の労力
負担を軽減するように構成されている。2. Description of the Related Art As an electric power steering device for a vehicle, for example, an input shaft connected to steered wheels and an output shaft coaxially connected to the input shaft via a torsion bar are applied to the input shaft by relative angular displacement. A torque sensor that detects a steering torque, a control unit that drives a motor for steering assistance based on the torque detected by the torque sensor, and a transmission unit that transmits the rotational force of the motor to a steering mechanism are provided. The operation of the steering mechanism according to the rotation of the steered wheels is assisted by the rotation of the motor, and the labor load of the driver for steering is reduced.
【０００３】この電動式パワーステアリング装置のトル
クセンサとしては、実開平５−６５７５０号公報、特開
２０００−３１０５７３、特開平８−１２２１７５号公
報、特開平１０−１６０６００号公報、特開平１０−３
３９６７９号公報に記載されているように非接触式セン
サが知られている。As a torque sensor of this electric power steering apparatus, Japanese Utility Model Laid-Open No. 5-65750, Japanese Unexamined Patent Publication No. 2000-310573, Japanese Unexamined Patent Publication No. 8-122175, Japanese Unexamined Patent Publication No. 10-160600, Japanese Unexamined Patent Publication No. 10-3 is used.
A non-contact sensor is known as described in Japanese Patent No. 39679.
【０００４】実開平５−６５７５０号公報に記載された
非接触式センサは、入力軸及び出力軸の周りに配置さ
れ、端面に矩形の歯部が周方向に形成されている３つの
磁性リングと、該磁性リングの外周りの配置され磁束を
発生する２つのコイルと、各コイルに夫々２本の導線を
介して接続された２つのコネクタとを備え、前記トーシ
ョンバーの捩じれに対応して前記磁性リングが相対回転
したとき前記歯部の対向面積が変化し、前記コイルのイ
ンピーダンスが変化することにより前記操舵トルクを検
出するように構成されている。The non-contact type sensor described in Japanese Utility Model Laid-Open No. 5-65750 has three magnetic rings arranged around an input shaft and an output shaft and having rectangular teeth formed on the end face in the circumferential direction. , Two coils arranged around the outer circumference of the magnetic ring for generating magnetic flux, and two connectors respectively connected to the coils via two conductors are provided, and the coil corresponding to the torsion of the torsion bar is provided. When the magnetic ring relatively rotates, the facing area of the teeth changes and the impedance of the coil changes, so that the steering torque is detected.
【０００５】コネクタは２本の導線に接続された２つの
端子と、各端子の導線への接続部を保護するハウジング
とを備えている。制御部は２つのコネクタの端子が挿入
によって接続される４つの接続孔を有する回路基板が設
けられている。The connector comprises two terminals connected to two conductors and a housing for protecting the connection of each terminal to the conductors. The control unit is provided with a circuit board having four connection holes to which the terminals of the two connectors are connected by insertion.
【０００６】コネクタの制御部への接続は、第１のコネ
クタのハウジングが指先で摘まれた状態で該コネクタの
端子が２つの接続孔に挿入され、さらに、第２のコネク
タのハウジングが指先で摘まれた状態で該コネクタの端
子が残り２つの接続孔に挿入され、各端子の先端が半田
付けされる。To connect the connector to the controller, the terminals of the first connector are inserted into the two connection holes while the housing of the first connector is pinched with the fingertips, and the housing of the second connector is the fingertips. In the pinched state, the terminals of the connector are inserted into the remaining two connection holes, and the tips of the terminals are soldered.
【０００７】[0007]
【発明が解決しようとする課題】ところが、従来のよう
に２つのコイルを備えたものにあっては、各コイルに導
線を介して接続された２つのコネクタは夫々が指先の太
さの半分程度の大きさに形成された小形であるため、こ
の小形のコネクタのハウジングを指先で摘み、端子を前
記制御部の接続孔に挿入して接続する作業が行い難く、
しかも、２つのコネクタを別々の接続操作で接続する必
要があるため、接続作業性の改善策が要望されていた。However, in the conventional device having two coils, each of the two connectors connected to each coil via a conductive wire has about half the thickness of the fingertip. Since it is a small size, it is difficult to pinch the housing of this small connector with your fingertips and insert the terminal into the connection hole of the control unit to connect.
Moreover, since it is necessary to connect the two connectors by separate connection operations, there has been a demand for a measure for improving the connection workability.
【０００８】本発明は斯かる事情に鑑みてなされたもの
であり、主たる目的は、複数のコイルに接続されたコネ
クタの接続作業性を向上することができるトルク検出装
置及び電動式パワーステアリング装置を提供することに
ある。また、他の目的は前記コイルが収容されたコイル
収容環の組込み作業性を向上することができるトルク検
出装置及び電動式パワーステアリング装置を提供するこ
とにある。The present invention has been made in view of the above circumstances, and a main object of the present invention is to provide a torque detection device and an electric power steering device capable of improving the connection workability of connectors connected to a plurality of coils. To provide. Another object of the present invention is to provide a torque detection device and an electric power steering device capable of improving the workability of assembling the coil housing ring in which the coil is housed.
【０００９】[0009]
【課題を解決するための手段】第１発明に係るトルク検
出装置は、トルクが加えられる回転体の外周りに配置さ
れる複数のコイルを有し、該コイルのインピーダンスの
変化で前記回転体に加わったトルクを検出する検出部
と、各コイルに接続されたコネクタとを備えるトルク検
出装置において、前記コネクタを並べて保持する保持体
を備えることを特徴とする。A torque detecting device according to a first aspect of the present invention has a plurality of coils arranged around an outer periphery of a rotating body to which torque is applied, and the rotating body is provided with the coils by changing impedance of the coils. A torque detection device including a detection unit that detects an applied torque and a connector that is connected to each coil is characterized by including a holding body that holds the connectors side by side.
【００１０】第６発明に係る電動式パワーステアリング
装置は、請求項１乃至５の何れかに記載されたトルク検
出装置と、前記コネクタに接続され、前記トルク検出装
置が検出したトルクに基づいて操舵補助用のモータを駆
動する制御部と、前記モータの回転力を舵取機構に伝動
する伝動手段とを備えていることを特徴とする。An electric power steering device according to a sixth aspect of the present invention is a torque detecting device according to any one of claims 1 to 5, and a steering system that is connected to the connector and operates based on the torque detected by the torque detecting device. It is characterized by comprising a control unit for driving the auxiliary motor and a transmission unit for transmitting the rotational force of the motor to the steering mechanism.
【００１１】第１発明及び第６発明にあっては、複数の
コイルに接続された複数のコネクタを並べて保持体に保
持することができるため、コネクタよりも大形の１つの
保持体を把持した状態で、しかも、１回の接続操作で各
コネクタの端子を接続孔に簡易に挿入接続することがで
き、組立て作業性を向上でき、コストの低減を図ること
ができる。In the first invention and the sixth invention, since the plurality of connectors connected to the plurality of coils can be arranged and held by the holding body, one holding body larger than the connector is gripped. In this state, moreover, the terminal of each connector can be easily inserted and connected to the connection hole by a single connecting operation, the assembling workability can be improved, and the cost can be reduced.
【００１２】第２発明に係るトルク検出装置は、前記コ
ネクタは導線を介して前記コイルに接続された端子と、
該端子の導線への接続部を保護するハウジングとを備
え、前記保持体は前記ハウジングを収容する収容部を有
することを特徴とする。第２発明にあっては、各コネク
タのハウジングは保持体の収容部に収容されているた
め、保持体によって各コネクタを保護することができ
る。In the torque detecting device according to the second invention, the connector has a terminal connected to the coil through a lead wire,
A housing for protecting a connecting portion of the terminal to the conductor wire, and the holding body has a housing portion for housing the housing. In the second aspect of the invention, since the housing of each connector is housed in the housing portion of the holder, each connector can be protected by the holder.
【００１３】第３発明に係るトルク検出装置は、前記ハ
ウジングは嵌合孔を有しており、該嵌合孔に嵌合される
凸起を前記保持体が有することを特徴とする。A torque detecting device according to a third aspect of the present invention is characterized in that the housing has a fitting hole, and the holder has a protrusion fitted into the fitting hole.
【００１４】第３発明にあっては、記保持体の凸起にハ
ウジングの嵌合孔を嵌合することによりコネクタを保持
体に保持することができるため、コネクタの保持体への
保持を簡易にできる。According to the third aspect of the invention, since the connector can be held in the holder by fitting the fitting hole of the housing into the protrusion of the holder, the connector can be easily held in the holder. You can
【００１５】第４発明に係るトルク検出装置は、前記保
持体は前記コネクタの保持位置と離間した位置に前記導
線の配線位置を拘束する拘束凹部を有することを特徴と
する。A torque detecting device according to a fourth aspect of the present invention is characterized in that the holding body has a restraining concave portion for restraining a wiring position of the conducting wire at a position separated from a holding position of the connector.
【００１６】第４発明にあっては、導線の配線位置を拘
束凹部によって拘束することができるため、導線に邪魔
されることなく保持体を摘むことができ、コネクタの接
続作業性をより一層向上することができ、また、導線が
保持体と該保持体に対向する他の部材との間で挾着され
たりすることを防止できる。According to the fourth aspect of the invention, since the wiring position of the conducting wire can be restrained by the restraining recess, the holding body can be picked up without being obstructed by the conducting wire, and the workability of connecting the connector is further improved. In addition, it is possible to prevent the conductive wire from being stuck between the holding body and another member facing the holding body.
【００１７】第５発明に係るトルク検出装置は、前記検
出部は前記コイルを収容する円筒部及び該円筒部の一端
に連なり、ラジアル方向内側へ曲げ成形された鍔部を有
するコイル収容環を備えており、該コイル収容環は前記
鍔部の円筒部との連なり部から円筒部の他端に亘って切
削加工されていることを特徴とする。In the torque detecting device according to the fifth aspect of the present invention, the detecting portion includes a cylindrical portion for accommodating the coil and a coil accommodating ring having a collar portion bent inward in the radial direction and connected to one end of the cylindrical portion. It is characterized in that the coil housing ring is cut from the continuous portion of the flange portion with the cylindrical portion to the other end of the cylindrical portion.
【００１８】第５発明にあっては、プレス成形によって
コイル収容環の切削加工工程数を低減でき、しかも、円
筒部の外周面を超えて切削加工されているため、円筒部
の外周面が切削加工されるときに発生したバリを前記外
周面よりもラジアル方向内側に位置させることができ、
バリに邪魔されることなくコイル収容環を嵌合内面に嵌
合することができる。また、コイル収容環を嵌合内面に
嵌合するとき、前記連なり部の切削加工面を嵌合内面の
縁に当接させ、該切削加工面を案内面として円筒部を嵌
合内面に挿入することができ、コイル収容環の組込み作
業性を向上できる。According to the fifth aspect of the invention, the number of steps for cutting the coil housing ring can be reduced by press forming, and the outer peripheral surface of the cylindrical portion is cut because the outer peripheral surface of the cylindrical portion is cut. It is possible to position the burr generated during processing inward in the radial direction with respect to the outer peripheral surface,
The coil housing ring can be fitted to the fitting inner surface without being hindered by the burr. Further, when the coil housing ring is fitted to the fitting inner surface, the cutting surface of the continuous portion is brought into contact with the edge of the fitting inner surface, and the cylindrical portion is inserted into the fitting inner surface using the cutting surface as a guide surface. Therefore, the workability of assembling the coil housing ring can be improved.
【００１９】[0019]
【発明の実施の形態】以下本発明をその実施の形態を示
す図面に基づいて詳述する。図１はトルク検出装置の構
成を示す断面図、図２はコネクタ接続部の構成を示す拡
大図、図３はコネクタ及び保持体の構成を示す斜視図、
図４はコネクタの１つを取外した状態の斜視図、図５は
保持体がコネクタを保持した状態の正面図、図６は保持
体の構成を示すもので、(a) は正面図、(b) は平面図、
(c) は(a) のI −I 線の断面図、(d) は(a) のII−II線
の断面図、図７はトルク検出装置を備えた電動式パワー
ステアリング装置の構成を示す断面図である。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to the drawings showing the embodiments thereof. 1 is a cross-sectional view showing the structure of a torque detection device, FIG. 2 is an enlarged view showing the structure of a connector connecting portion, FIG. 3 is a perspective view showing the structure of a connector and a holder,
4 is a perspective view showing a state where one of the connectors is removed, FIG. 5 is a front view showing a state in which the holding body holds the connector, FIG. 6 shows a structure of the holding body, (a) is a front view, b) is a plan view,
(c) is a cross-sectional view taken along the line I-I of (a), (d) is a cross-sectional view taken along the line II-II of (a), and FIG. 7 shows the configuration of an electric power steering device equipped with a torque detection device. FIG.
【００２０】電動式パワーステアリング装置は、上端が
舵取りのための操舵輪Ａに繋がり、下端に筒部１ａを有
する入力軸１と、前記筒部１ａ内に挿入されてその上端
が前記入力軸１の筒部１ａに同軸的に連結され、前記操
舵輪Ａに加わる操舵トルクの作用によって捩れるトーシ
ョンバー２と、下端が前記トーションバー２の下端に同
軸的に連結される出力軸３と、前記トーションバー２の
捩れに応じた入力軸１及び出力軸３の相対回転変位量に
よって前記操舵輪Ａに加わる操舵トルクを検出するトル
ク検出装置Ｂと、該トルク検出装置Ｂが検出したトルク
に基づいて操舵補助用のモータ４を駆動制御する制御部
５と、前記モータ４の回転を前記出力軸３に伝動する減
速機構６と、該減速機構６及び前記トルク検出装置Ｂを
収容するとともに前記入力軸１及び出力軸３を回転可能
に支持する筒形ケース７とを備えている。尚、前記入力
軸１及び出力軸３が回転体を構成している。The electric power steering apparatus has an upper end connected to a steering wheel A for steering and an input shaft 1 having a tubular portion 1a at the lower end, and an upper end inserted into the tubular portion 1a so that the upper end thereof is the input shaft 1. A torsion bar 2 which is coaxially connected to the tubular portion 1a of the torsion bar 2 and which is twisted by the action of a steering torque applied to the steering wheel A; and an output shaft 3 whose lower end is coaxially connected to the lower end of the torsion bar 2. Based on the torque detection device B that detects the steering torque applied to the steered wheels A by the relative rotational displacement amount of the input shaft 1 and the output shaft 3 according to the torsion of the torsion bar 2, and the torque detected by the torque detection device B. A control unit 5 for driving and controlling a motor 4 for steering assistance, a speed reduction mechanism 6 for transmitting the rotation of the motor 4 to the output shaft 3, a speed reduction mechanism 6 and the torque detection device B are housed. Fill power shaft 1 and the output shaft 3 and a tubular casing 7 which rotatably supports. The input shaft 1 and the output shaft 3 constitute a rotating body.
【００２１】出力軸３は、上端に前記筒部１ａの下端部
が挿嵌される挿嵌孔３ａを有しており、該挿嵌孔３ａに
ニードル軸受８を介して前記筒部１ａの下端部が支持さ
れている。また、出力軸３の中間部は一対の玉軸受９，
１０を介して前記筒形ケース７内に支持されている。The output shaft 3 has an insertion hole 3a at the upper end into which the lower end of the cylindrical portion 1a is inserted, and the lower end of the cylindrical portion 1a is inserted into the insertion hole 3a via a needle bearing 8. The section is supported. The intermediate portion of the output shaft 3 has a pair of ball bearings 9,
It is supported in the cylindrical case 7 via 10.
【００２２】トルク検出装置Ｂは、前記出力軸３の上端
部及び前記筒部１ａの途中部の外周りに軸長方向に離間
して配置され磁束を発生する第１及び第２のコイル１
１，１２と、第１のコイル１１の内側に配置され、前記
出力軸３の上端部外周に嵌合固定された第１の磁性リン
グ１３と、第２のコイル１２の内側に配置され、前記筒
部１ａの途中部の外周に嵌合固定される第２の磁性リン
グ１４及び第３の磁性リング１５と、前記第１及び第２
のコイル１１，１２を別個に収容し、磁性材料からなる
２つのコイル収容環１６，１７と、該コイル収容環１
６，１７の間に介された環状のリテーナ１８と、前記第
１及び第２のコイル１１，１２の夫々に２つの導線１
９，１９，２０，２０を介して接続された第１及び第２
のコネクタ２１，２２と、該コネクタ２１，２２を並べ
て保持する保持体２３とを備えており、夫々のコイル収
容環１６，１７が前記筒形ケース７の嵌合内面７ａに嵌
合保持されている。The torque detecting device B includes first and second coils 1 which are arranged apart from each other in the axial direction along the outer periphery of the upper end portion of the output shaft 3 and the middle portion of the cylindrical portion 1a to generate magnetic flux.
1, 12 and a first magnetic ring 13 arranged inside the first coil 11 and fitted and fixed to the outer periphery of the upper end portion of the output shaft 3, and arranged inside the second coil 12, The second magnetic ring 14 and the third magnetic ring 15 that are fitted and fixed to the outer periphery of the middle portion of the tubular portion 1a, and the first and second magnetic rings.
Coils 11 and 12 of the above are separately housed, two coil housing rings 16 and 17 made of a magnetic material, and the coil housing ring 1
An annular retainer 18 interposed between Nos. 6, 17 and two conductors 1 for each of the first and second coils 11, 12.
First and second connected via 9, 19, 20, 20
Connector 21 and 22 and a holder 23 that holds the connectors 21 and 22 side by side, and the coil housing rings 16 and 17 are fitted and held on the fitting inner surface 7a of the tubular case 7. There is.
【００２３】第１及び第２の磁性リング１３，１４の対
向端面と、第３の磁性リング１５の第２の磁性リング１
４との対向端面とには、矩形の複数個の歯部が等ピッチ
で周方向に形成されている。そして、第１のコイル１１
が発生した磁束によりコイル収容環１６，第１の磁性リ
ング１３，及び第２の磁性リング１４で第１の磁気回路
を構成し、第２のコイル１２が発生した磁束によりコイ
ル収容環１７，第２の磁性リング１４，及び第３の磁性
リング１５で第２の磁気回路を構成する。このため、操
舵輪Ａに操舵トルクが加えられ、前記トーションバー２
が捩じれた場合、第１の磁性リング１３の歯部と第２の
磁性リング１４の歯部との対向面積が変化して第１のコ
イル１１のインピーダンスが変化し、その変化に応じて
出力される電圧によりトーションバー２に加えられたト
ルクを検出することができる。このとき、第２の磁性リ
ング１４の非歯部端面と対向する歯部を有する第３の磁
性リング１５と第２の磁性リング１４とが相対回転し
て、第２のコイル１２のインピーダンスが変化し、その
変化に応じて出力される電圧により前記トルクが補正さ
れる。即ち、第１のコイル１１のインピーダンスは、ト
ーションバー２に加えられた実際のトルクに加えて、第
１のコイル１１の雰囲気温度によって変化するため、こ
の雰囲気温度による第１のコイル１１のインピーダンス
の変化を補正し、温度に影響されないトルクを検出する
ことができるようにしてある。The opposite end faces of the first and second magnetic rings 13 and 14 and the second magnetic ring 1 of the third magnetic ring 15 are opposed to each other.
4, a plurality of rectangular tooth portions are formed in the circumferential direction at equal pitches on the end face opposite to 4. Then, the first coil 11
The magnetic flux generated by the coil storage ring 16, the first magnetic ring 13, and the second magnetic ring 14 constitute a first magnetic circuit, and the magnetic flux generated by the second coil 12 causes the coil storage ring 17, The second magnetic ring 14 and the third magnetic ring 15 form a second magnetic circuit. Therefore, steering torque is applied to the steered wheels A, and the torsion bar 2
Is twisted, the facing area between the tooth portion of the first magnetic ring 13 and the tooth portion of the second magnetic ring 14 changes, the impedance of the first coil 11 changes, and the output is output according to the change. The torque applied to the torsion bar 2 can be detected by the voltage applied to the torsion bar 2. At this time, the third magnetic ring 15 and the second magnetic ring 14 each having a tooth portion facing the non-toothed end surface of the second magnetic ring 14 are relatively rotated, and the impedance of the second coil 12 is changed. Then, the torque is corrected by the voltage output according to the change. That is, since the impedance of the first coil 11 changes depending on the ambient temperature of the first coil 11 in addition to the actual torque applied to the torsion bar 2, the impedance of the first coil 11 depending on this ambient temperature The change is corrected so that the torque that is not affected by the temperature can be detected.
【００２４】第１のコネクタ２１は２つの導線１９，１
９に接続された２つの端子２１ａ，２１ａと、該端子２
１ａ，２１ａの導線１９，１９への接続部を保護するハ
ウジング２１ｂ，２１ｂとを備えている。第２のコネク
タ２２は２つの導線２０，２０に接続された２つの端子
２２ａ，２２ａと、該端子２２ａ，２２ａの導線２０，
２０への接続部を保護するハウジング２２ｂ，２２ｂと
を備えている。各ハウジング２１ｂ，２２ｂは離間して
穿設された３つの挿通孔２１ｃ，２２ｃを有しており、
両端の挿通孔２１ｃ，２２ｃに前記端子２１ａ，２１ａ
と２２ａ，２２ａとが挿入固定されている。中央の挿通
孔２１ｃ，２２ｃは後記する凸起２３ｇが嵌合される嵌
合孔となる。The first connector 21 has two conductors 19, 1
Two terminals 21a, 21a connected to 9 and the terminal 2
1a and 21a, and housings 21b and 21b for protecting the connecting portions to the conductors 19 and 19. The second connector 22 has two terminals 22a, 22a connected to the two conductors 20, 20 and the conductors 20 of the terminals 22a, 22a.
And housings 22b and 22b for protecting the connection part to 20. Each of the housings 21b and 22b has three insertion holes 21c and 22c that are formed separately from each other.
The terminals 21a, 21a are inserted into the insertion holes 21c, 22c at both ends.
And 22a and 22a are inserted and fixed. The insertion holes 21c and 22c at the center serve as fitting holes into which projections 23g described later are fitted.
【００２５】保持体２３は矩形の底壁２３ａと、該底壁
２３ａの長手方向両端及び中央に立設された３つの立壁
２３ｂ，２３ｃ，２３ｄと、隣り合う立壁２３ｂ，２３
ｃ及び２３ｃ，２３ｄの間の２つの収容部２３ｅ，２３
ｆに前記底壁２３ａから立設され、前記ハウジング２１
ｂ，２２ｂにおける中央の挿通孔２１ｃ，２２ｃが嵌合
される凸起２３ｇを有する２つの保持片２３ｈ，２３ｉ
と、前記立壁２３ｂ，２３ｄ及び保持片２３ｈの上端部
で底壁２３ａの幅方向一端に夫々突設された抜止凸部２
３ｊと、前記立壁２３ｃの上端部で底壁２３ａの幅方向
一端に突設された一対の抜止凸部２３ｋと、該抜止凸部
２３ｊ，２３ｋ及び前記底壁２３ａの間に凹設され、前
記各導線１９，２０の配線位置を拘束する拘束凹部２３
ｍ，２３ｎとを備えており、各収容部２３ｅ，２３ｆに
前記ハウジング２１ｂ，２２ｂが収容される。The holder 23 has a rectangular bottom wall 23a, three standing walls 23b, 23c and 23d standing on both ends and the center of the bottom wall 23a in the longitudinal direction, and standing walls 23b and 23 adjacent to each other.
Two accommodating portions 23e, 23 between c and 23c, 23d
f is erected from the bottom wall 23a, and the housing 21
Two holding pieces 23h, 23i having a protrusion 23g into which the central insertion holes 21c, 22c in b, 22b are fitted.
And the retaining projections 2 projecting from the upper ends of the standing walls 23b and 23d and the holding piece 23h at one widthwise end of the bottom wall 23a.
3j, a pair of retaining projections 23k protruding from one end in the width direction of the bottom wall 23a at the upper end of the standing wall 23c, and recessed between the retaining projections 23j, 23k and the bottom wall 23a, Restraint recess 23 for restraining the wiring position of each conductor 19, 20
m, 23n, and the housings 21b, 22b are housed in the housing portions 23e, 23f, respectively.
【００２６】保持片２３ｈの凸起２３ｇと保持片２３ｉ
の凸起２３ｇとは形状を異ならせてあり、前記ハウジン
グ２１ｂ，２２ｂの嵌合間違い、換言するとコネクタ２
１，２２の保持位置の間違いを確実に防ぐようにしてあ
る。また、凸起２３ｇは前記挿通孔２１ｃ，２２ｃが嵌
合されたときハウジング２１ｂ，２２ｂを係止し、該ハ
ウジング２１ｂ，２２ｂの収容部２３ｅ，２３ｆでの保
持状態を維持することができるようにしてある。The protrusion 23g of the holding piece 23h and the holding piece 23i
The protrusion 23g has a different shape, and the housings 21b and 22b are not fitted properly, in other words, the connector 2
The holding positions of 1 and 22 are surely prevented from being incorrect. Further, the protrusion 23g locks the housings 21b and 22b when the insertion holes 21c and 22c are fitted, and maintains the holding state of the housings 21b and 22b in the housing portions 23e and 23f. There is.
【００２７】抜止凸部２３ｊは前記導線１９，２０の太
さよりも若干小さい間隔で対向しており、この抜止凸部
２３ｊの間から立壁２３ｂ，２３ｄ及び保持片２３ｈ，
２３ｉの間の拘束凹部２３ｍ，２３ｍへ挿入された導線
１９，２０の抜け出しを防ぐことができるようにしてあ
る。また、抜止凸部２３ｋは前記保持片２３ｈ，２３ｉ
との間の間隔が導線１９，２０の太さよりも若干小さく
なる高さになっており、この抜止凸部２３ｋと保持片２
３ｈ，２３ｉとの間から立壁２３ａ及び保持片２３ｈ，
２３ｉの間の拘束凹部２３ｎ，２３ｎへ挿入された導線
１９，２０の抜け出しを防ぐことができるようにしてあ
る。また、各抜止凸部２３ｊ，２３ｋの導線挿入側はテ
ーパ面とし、導線１９，２０を容易に挿入することがで
きるようにしてある。The retaining projections 23j are opposed to each other at intervals slightly smaller than the thickness of the conducting wires 19 and 20, and the standing walls 23b and 23d and the holding pieces 23h are provided between the retaining projections 23j.
It is possible to prevent the conductors 19 and 20 inserted into the restraining recesses 23m and 23m between 23i from coming off. In addition, the retaining projection 23k is provided with the holding pieces 23h and 23i.
The distance between the lead wire 19 and the lead wire 20 is slightly smaller than the thickness of the conductors 19 and 20, and the retaining projection 23k and the holding piece 2
3h, 23i from the standing wall 23a and the holding piece 23h,
It is possible to prevent the conductor wires 19 and 20 inserted into the restraining recessed portions 23n and 23n between 23i from coming out. In addition, the lead wire insertion side of each of the retaining projections 23j and 23k has a tapered surface so that the lead wires 19 and 20 can be easily inserted.
【００２８】コイル収容環１６，１７は、前記コイル１
１，１２が内嵌される円筒部１６ａ，１７ａと、該円筒
部１６ａ，１７ａの一端からラジアル方向内側に連な
り、その内周面１６ｃ，１７ｃが前記第１の磁性リング
１３又は第２の磁性リング１４の外周面と向き合う鍔部
１６ｂ，１７ｂとからなる。このコイル収容環１６，１
７は一般に全面を切削加工することにより形成されてい
るが、実施の形態では、鍔部１６ｂ，１７ｂの厚さと等
しい板厚寸法（寸法公差を含む）の金属板をプレス成形
し、一部分だけを切削加工することにより、切削加工の
工程数を少なくし、加工コストの低減を図っている。The coil housing rings 16 and 17 are the coils 1
1 and 12 are internally fitted to the cylindrical portions 16a and 17a, and one end of each of the cylindrical portions 16a and 17a extends inward in the radial direction, and inner circumferential surfaces 16c and 17c thereof have the first magnetic ring 13 or the second magnetic ring. It is composed of collar portions 16b and 17b facing the outer peripheral surface of the ring 14. This coil housing ring 16,1
7 is generally formed by cutting the entire surface, but in the embodiment, a metal plate having a plate thickness dimension (including dimension tolerance) equal to the thickness of the flange portions 16b and 17b is press-molded, and only a part thereof is formed. By cutting, the number of cutting steps is reduced and the processing cost is reduced.
【００２９】プレス成形後に切削加工が必要であるの
は、鍔部１６ｂ，１７ｂの内周面１６ｃ，１７ｃと第１
及び第２の磁性リング１３，１４との間に所定の隙間を
確保し、トルク検出精度を保証するためである。因っ
て、少なくとも前記円筒部１６ａ，１７ａの外周面と、
鍔部１６ｂ，１７ｂの内周面１６ｃ，１７ｃとは切削加
工され、その寸法公差を比較的小さくしてある。It is necessary to perform cutting after the press molding because the inner peripheral surfaces 16c and 17c of the collar portions 16b and 17b and the first
This is because a predetermined gap is secured between the second magnetic ring 13 and the second magnetic rings 13 and 14, and torque detection accuracy is guaranteed. Therefore, at least the outer peripheral surfaces of the cylindrical portions 16a and 17a,
The inner peripheral surfaces 16c and 17c of the collar portions 16b and 17b are cut to have a relatively small dimensional tolerance.
【００３０】ところで、円筒部１６ａ，１７ａの外周面
を切削加工した場合、この加工工程の終端でバリが発生
するため、実施の形態では円筒部１６ａ，１７ａと鍔部
１６ｂ，１７ｂとの間の連なり部１６ｄ，１７ｄの途中
から円筒部１６ａ，１７ａの他端に亘って切削加工して
ある。By the way, when the outer peripheral surfaces of the cylindrical portions 16a and 17a are machined, burrs are generated at the end of this machining step. Therefore, in the embodiment, between the cylindrical portions 16a and 17a and the collar portions 16b and 17b. Cutting is performed from the middle of the continuous portions 16d and 17d to the other ends of the cylindrical portions 16a and 17a.
【００３１】図８、図９はコイル収容環の一部を拡大し
た断面図である。この切削加工は、円筒部１６ａ，１７
ａの他端を切削始端とし、前記連なり部１６ｄ，１７ｄ
の途中が切削終端となるように実行され、連なり部１６
ｄ，１７ｄでは図８に示すように外周面（ａ部）よりも
小寸法のテーパ面（ｂ部）となっている。この結果、切
削終端に発生したバリは前記外周面（ａ部）よりもラジ
アル方向内側にある。FIG. 8 and FIG. 9 are enlarged sectional views of a part of the coil housing ring. This cutting process is performed on the cylindrical portions 16a and 17
The other end of a is used as a cutting start end, and the connecting portions 16d and 17d are formed.
Is executed so that the cutting end is reached in the middle of
In d and 17d, as shown in FIG. 8, the outer peripheral surface (a portion) has a smaller dimension than the outer peripheral surface (a portion). As a result, the burr generated at the cutting end is located radially inward of the outer peripheral surface (a portion).
【００３２】また、鍔部１６ｂ，１７ｂの内周面１６
ｃ，１７ｃを切削加工した場合、この加工工程の終端で
バリが発生するため、この終端は非尖形となるように切
削加工してある。この終端の切削加工量を多くした場
合、鍔部１６ｂ，１７ｂ内周面の有効長さＨを確保する
ことができないため、実施の形態では前記金属板の板厚
寸法公差を考慮し、最小公差の位置よりも僅かに小寸法
となる位置から内周面よりも大寸法のテーパ面（ｃ部）
となるように切削加工してある（図９参照）。この結
果、前記金属板の板厚寸法公差が最小の場合においても
切削終端に発生したバリは前記内周面１６ｃ，１７ｃよ
りもラジアル方向外側にある。Further, the inner peripheral surface 16 of the collar portions 16b, 17b
When c and 17c are cut, burrs are generated at the end of this processing step, so the end is cut so as to have a non-pointed shape. When the amount of cutting at this end is increased, the effective length H of the inner peripheral surfaces of the collar portions 16b and 17b cannot be ensured. Therefore, in the embodiment, the plate thickness dimension tolerance of the metal plate is taken into consideration and the minimum tolerance is taken into consideration. From the position slightly smaller than the position of, the taper surface of the size larger than the inner peripheral surface (c part)
It is cut so that (see FIG. 9). As a result, even when the plate thickness dimension tolerance of the metal plate is minimum, the burr generated at the cutting end is located radially outside the inner peripheral surfaces 16c and 17c.
【００３３】筒形ケース７には前記嵌合内面７ａを臨む
挿通孔７ｂが設けられており、該挿通孔７ｂに前記導線
１９，２０が挿通されている。The cylindrical case 7 is provided with an insertion hole 7b which faces the fitting inner surface 7a, and the lead wires 19 and 20 are inserted into the insertion hole 7b.
【００３４】制御部５は回路基板５ａ及び該回路基板５
ａに装着されたマイクロプロセッサ（図示せず）を用い
てなり、該制御部５の入力部には前記トルク検出装置Ｂ
のコネクタ２１，２２が接続されており、出力部には前
記モータ４の駆動回路が接続されている。回路基板５ａ
には前記コネクタ２１，２２の端子２１ａ，２２ａが挿
入される複数の接続孔５ｂが設けられている。また、制
御部５はケース部材２４に内蔵されており、該ケース部
材２４が前記筒形ケース７における挿通孔７ｂの近傍位
置に着脱可能に取付けられている。ケース部材２４には
前記回路基板５ａの両側に立設され、前記コネクタ２
１，２２を保護する２つの保護壁２４ａ，２４ｂと、前
記導線１９，２０を収容する溝２４ｃと、該溝２４ｃ部
分及び前記回路基板５ａの接続孔５ｂ部分を覆う蓋体２
４ｄとを備えており、該蓋体２４ｄを取外すことにより
前記コネクタ２１，２２の端子２１ａ，２２ａを前記接
続孔５ｂに挿入することができるようになっている。The control unit 5 includes a circuit board 5a and the circuit board 5
The torque detection device B is provided in the input section of the control section 5 by using a microprocessor (not shown) mounted in a.
Connectors 21 and 22 are connected, and the drive circuit of the motor 4 is connected to the output section. Circuit board 5a
Is provided with a plurality of connection holes 5b into which the terminals 21a and 22a of the connectors 21 and 22 are inserted. The control unit 5 is built in the case member 24, and the case member 24 is detachably attached to the tubular case 7 in the vicinity of the insertion hole 7b. The case member 24 is erected on both sides of the circuit board 5a, and the connector 2
Two protective walls 24a and 24b for protecting the electric wires 1 and 22, a groove 24c for accommodating the conductors 19 and 20, a lid 2 for covering the groove 24c portion and the connection hole 5b portion of the circuit board 5a.
4d, and the terminals 21a and 22a of the connectors 21 and 22 can be inserted into the connection holes 5b by removing the lid 24d.
【００３５】減速機構６は、前記出力軸３の外周であり
前記トルク検出装置Ｂと軸長方向に隣合う位置に嵌合に
よって固定されるウォームホイール６ａ及び該ウォーム
ホイール６ａに噛合し、前記モータ４の駆動軸に繋がる
ウォーム６ｂとを備え、前記駆動軸の回転を減速して出
力軸３に伝達し、該出力軸３からユニバーサルジョイン
トを経て例えばラックピニオン式の舵取機構（図示せ
ず）へ伝動するようになっている。尚、出力軸３及びユ
ニバーサルジョイントが、ウォームホイール６ａの回転
力を舵取機構に伝動する伝動手段を構成している。The deceleration mechanism 6 is engaged with the worm wheel 6a and the worm wheel 6a which are fixed to each other on the outer circumference of the output shaft 3 by adjoining the torque detecting device B in the axially adjacent position. And a worm 6b connected to the drive shaft 4 for decelerating the rotation of the drive shaft and transmitting the decelerated rotation to the output shaft 3, and from the output shaft 3 via a universal joint, for example, a rack and pinion type steering mechanism (not shown). It is designed to be transmitted to. The output shaft 3 and the universal joint form a transmission unit that transmits the rotational force of the worm wheel 6a to the steering mechanism.
【００３６】以上のように構成された電動式パワーステ
アリング装置は、前記トルク検出装置Ｂの２つのコネク
タ２１，２２が制御部５に接続される。この場合、各コ
ネクタ２１，２２は予め１つの保持体２３の収容部２３
ｅ，２３ｆに並べて保持されているため、該保持体２３
を摘むことにより、各コネクタ２１，２２の端子２１
ａ，２２ａを接続孔５ｂに挿入することができる。この
結果、１回の接続操作で各コネクタ２１，２２を制御部
５に容易に接続することができ、組立て作業性を向上で
き、コストの低減を図ることができる。また、コネクタ
２１，２２を摘むことなく、該コネクタ２１，２２が収
容保持された保持体２３を摘むため、端子２１ａ，２２
ａ及び導線１９，２０の良好な接続状態を確実に維持す
ることができる。また、各導線１９，２０の端子２１
ａ，２２ａとの接続側は抜止凸部２３ｊ，２３ｋによっ
て保持体２３の拘束凹部２３ｍ，２３ｎに拘束されてい
るため、導線１９，２０に邪魔されることなく保持体２
３を摘むことができ、コネクタ２１，２２の接続作業性
をより一層向上できる。また、導線１９，２０が例えば
保持体２３と前記蓋体２４ｄとの間で挾着されたりする
ことを防止できる。In the electric power steering apparatus configured as described above, the two connectors 21 and 22 of the torque detecting apparatus B are connected to the control section 5. In this case, each of the connectors 21 and 22 has a housing portion 23 of one holding body 23 in advance.
e and 23f are held side by side, the holding body 23
By picking up the terminal 21 of each connector 21, 22
The a and 22a can be inserted into the connection hole 5b. As a result, the connectors 21 and 22 can be easily connected to the control section 5 by one connection operation, the assembling workability can be improved, and the cost can be reduced. Further, since the holding body 23 accommodating and holding the connectors 21 and 22 is pinched without pinching the connectors 21 and 22, the terminals 21a and 22 are
It is possible to surely maintain a good connection state of a and the conductive wires 19 and 20. In addition, the terminals 21 of the conductors 19 and 20
Since the connection side with a, 22a is restrained by the retaining projections 23j, 23k in the restraining recesses 23m, 23n of the holding body 23, the holding body 2 is not disturbed by the conducting wires 19, 20.
3 can be picked, and the workability of connecting the connectors 21 and 22 can be further improved. Further, it is possible to prevent the conductive wires 19 and 20 from being stuck between the holding body 23 and the lid body 24d, for example.
【００３７】また、以上説明した実施の形態にあって
は、コイル収容環１６，１７がプレス成形されているた
め、該コイル収容環１６，１７の切削加工工程数を低減
でき、しかも、円筒部１６ａ，１７ａの外周面は連なり
部１６ｄ，１７ｄの途中が切削終端となるように切削加
工されており、切削終端に発生したバリを前記外周面よ
りもラジアル方向内側に位置させてあるため、バリに邪
魔されることなくコイル収容環１６，１７を筒形ケース
７の嵌合内面７ａに嵌合することができる。さらに、連
なり部１６ｄ，１７ｄの途中から円筒部１６ａ，１７ａ
の他端に亘って切削加工されているため、コイル収容環
１６，１７を嵌合内面７ａに嵌合するとき、前記連なり
部１６ｄ，１７ｄの切削加工面を嵌合内面７ａの縁に当
接させ、該切削加工面を案内面として円筒部１６ａ，１
７ａを嵌合内面７ａに挿入することができ、コイル収容
環１６，１７の組込み作業性を向上できる。Further, in the above-described embodiment, since the coil housing rings 16 and 17 are press-molded, the number of cutting processes of the coil housing rings 16 and 17 can be reduced, and moreover, the cylindrical portion can be formed. The outer peripheral surfaces of 16a and 17a are cut so that the middle of the continuous portions 16d and 17d serve as the cutting ends, and the burr generated at the cutting ends is located radially inward of the outer peripheral surface. The coil housing rings 16 and 17 can be fitted to the fitting inner surface 7 a of the cylindrical case 7 without being disturbed by the. Further, the cylindrical portions 16a, 17a are inserted from the middle of the continuous portions 16d, 17d.
When the coil housing rings 16 and 17 are fitted to the fitting inner surface 7a, the cutting surfaces of the connecting portions 16d and 17d are brought into contact with the edges of the fitting inner surface 7a because they are cut on the other end of the fitting inner surface 7a. Then, using the cutting surface as a guide surface, the cylindrical portions 16a, 1
7a can be inserted into the fitting inner surface 7a, and the workability of assembling the coil housing rings 16 and 17 can be improved.
【００３８】また、プレス成形されたコイル収容環１
６，１７における鍔部１６ｂ，１７ｂの内周面１６ｃ，
１７ｃは、板厚寸法の最小公差の位置よりも僅かに小寸
法となる位置から内周面１６ｃ，１７ｃよりも大寸法の
テーパ面となるように切削加工されており、切削終端に
発生したバリを前記内周面１６ｃ，１７ｃよりもラジア
ル方向外側に位置させてあるため、バリに影響されるこ
となく鍔部１６ｂ，１７ｂの内周面と第１及び第２の磁
性リング１３，１４との間に所定隙間を確保でき、トル
ク検出精度を保証することができる。Further, the press-formed coil housing ring 1
The inner peripheral surfaces 16c of the collar portions 16b and 17b of
The burrs 17c are machined from a position slightly smaller than the position of the minimum tolerance of the plate thickness dimension to a tapered surface having a larger dimension than the inner peripheral surfaces 16c, 17c, and burrs generated at the cutting end. Are located radially outward of the inner peripheral surfaces 16c and 17c, so that the inner peripheral surfaces of the flange portions 16b and 17b and the first and second magnetic rings 13 and 14 are not affected by burrs. A predetermined gap can be secured between them, and torque detection accuracy can be guaranteed.
【００３９】尚、以上説明した実施の形態では導線１
９、２０を介してコイル１１，１２に接続された端子２
１ａ，２２ａを有するコネクタ２１，２２を備えた構成
としたが、その他、前記導線１９，２０をなくし、前記
コイル１１，１２の両端に端子２１ａ，２２ａが接続さ
れた構成としてもよい。また、本発明に係るトルク検出
装置は、電動式パワーステアリング装置に使用する他、
電動式パワーステアリング装置以外の装置に使用しても
よい。In the embodiment described above, the conductor 1
Terminal 2 connected to coils 11 and 12 via 9 and 20
Although the configuration is provided with the connectors 21 and 22 having 1a and 22a, in addition, the conductors 19 and 20 may be omitted and the terminals 21a and 22a may be connected to both ends of the coils 11 and 12, respectively. The torque detection device according to the present invention is used in an electric power steering device,
It may be used in devices other than the electric power steering device.
【００４０】[0040]
【発明の効果】第１発明及び第６発明によれば、コネク
タよりも大形の１つの保持体を摘んだ状態で、しかも、
１回の接続操作で各コネクタの端子を被接続体の接続孔
に簡易に挿入接続することができ、組立て作業性を向上
でき、コストの低減を図ることができる。According to the first and sixth aspects of the invention, one holding body larger than the connector is pinched, and
The terminal of each connector can be easily inserted and connected to the connection hole of the connected body by one connection operation, the assembling workability can be improved, and the cost can be reduced.
【００４１】第２発明によれば、１つの保持体によって
各コネクタを保護することができ、導線と端子との良好
な接続状態を確実に維持することができる。According to the second aspect of the invention, each connector can be protected by one holding member, and the good connection state between the conductor and the terminal can be reliably maintained.
【００４２】第３発明によれば、コネクタの保持体への
保持を簡易にできる。According to the third invention, it is possible to easily hold the connector on the holder.
【００４３】第４発明によれば、導線に邪魔されること
なく保持体を摘むことができ、コネクタの接続作業性を
より一層向上できる。According to the fourth aspect of the invention, the holding body can be pinched without being hindered by the conducting wire, and the workability of connecting the connector can be further improved.
【００４４】第５発明によれば、切削終端に発生するバ
リに邪魔されることなくコイル収容環を嵌合内面に嵌合
することができ、また、連なり部の切削加工面を案内面
として円筒部を嵌合内面に挿入することができ、コイル
収容環の組込み作業性を向上できる。According to the fifth invention, the coil housing ring can be fitted to the fitting inner surface without being obstructed by the burr generated at the cutting end, and the cutting surface of the continuous portion is used as a guide surface to form a cylinder. The part can be inserted into the fitting inner surface, and the workability of assembling the coil housing ring can be improved.
【図１】本発明に係るトルク検出装置の構成を示す断面
図である。FIG. 1 is a sectional view showing a configuration of a torque detection device according to the present invention.
【図２】本発明に係るトルク検出装置のコネクタ接続部
の構成を示す拡大図である。FIG. 2 is an enlarged view showing a configuration of a connector connecting portion of the torque detection device according to the present invention.
【図３】本発明に係るトルク検出装置のコネクタ及び保
持体の構成を示す斜視図である。FIG. 3 is a perspective view showing a configuration of a connector and a holder of the torque detection device according to the present invention.
【図４】本発明に係るトルク検出装置のコネクタの１つ
を取外した状態の斜視図である。FIG. 4 is a perspective view showing a state in which one of the connectors of the torque detection device according to the present invention is removed.
【図５】本発明に係るトルク検出装置の保持体がコネク
タを保持した状態の正面図である。FIG. 5 is a front view of a state where the holder of the torque detection device according to the present invention holds the connector.
【図６】本発明に係るトルク検出装置の保持体の構成を
示すもので、(a) は正面図、(b) は平面図、(c) は(a)
のI −I 線の断面図、(d) は(a) のII−II線の断面図で
ある。6A and 6B show a structure of a holding body of a torque detection device according to the present invention, where FIG. 6A is a front view, FIG. 6B is a plan view, and FIG.
2 is a cross-sectional view taken along line I-I of (a) and (d) is a cross-sectional view taken along line II-II (a).
【図７】本発明に係るトルク検出装置を備えた電動式パ
ワーステアリング装置の構成を示す断面図である。FIG. 7 is a cross-sectional view showing a configuration of an electric power steering apparatus including a torque detection device according to the present invention.
【図８】本発明に係るトルク検出装置のコイル収容環の
一部を拡大した断面図である。FIG. 8 is an enlarged sectional view of a part of a coil housing ring of the torque detection device according to the present invention.
【図９】本発明に係るトルク検出装置のコイル収容環の
一部を拡大した断面図である。FIG. 9 is an enlarged sectional view of a part of a coil housing ring of the torque detection device according to the present invention.
Ｂ トルク検出装置 １ 入力軸（回転体） ３ 出力軸（回転体） ４ モータ ５ 制御部 １１，１２ コイル １３〜１５ 磁性リング １６，１７ コイル収容環 １６ａ，１７ａ 円筒部 １６ｂ，１７ｂ 鍔部 １６ｄ，１７ｄ 連なり部 １９，２０ 導線 ２１，２２ コネクタ ２１ａ，２２ａ 端子 ２１ｂ，２２ｂ ハウジング ２１ｃ，２２ｃ 挿通孔（嵌合孔） ２３ 保持体 ２３ｅ，２３ｆ 収容部 ２３ｇ 凸起 ２３ｍ，２３ｎ 拘束凹部 B torque detector 1 input shaft (rotating body) 3 Output shaft (rotating body) 4 motor 5 control unit 11,12 coils 13-15 Magnetic ring 16,17 Coil housing ring 16a, 17a Cylindrical part 16b, 17b collar part 16d, 17d continuous section 19,20 conductor 21,22 connector 21a, 22a terminals 21b, 22b housing 21c, 22c insertion hole (fitting hole) 23 Holder 23e, 23f accommodation section 23g convex 23m, 23n restraining recess
───────────────────────────────────────────────────── フロントページの続き (72)発明者 真田 隆宏 大阪府大阪市中央区南船場三丁目５番８号 光洋精工株式会社内 Ｆターム(参考） 3D033 CA28 DB05 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Takahiro Sanada 3-5-8 Minamisenba, Chuo-ku, Osaka-shi, Osaka Koyo Seiko Co., Ltd. F-term (reference) 3D033 CA28 DB05
Claims (6)
置される複数のコイルを有し、該コイルのインピーダン
スの変化で前記回転体に加わったトルクを検出する検出
部と、各コイルに接続されたコネクタとを備えるトルク
検出装置において、前記コネクタを並べて保持する保持
体を備えることを特徴とするトルク検出装置。1. A detection unit having a plurality of coils arranged on the outer periphery of a rotating body to which torque is applied, the detecting unit detecting a torque applied to the rotating body by a change in impedance of the coils, and connected to each coil. A torque detecting device having a connector, the holding device holding the connectors side by side.
に接続された端子と、該端子の導線への接続部を保護す
るハウジングとを備え、前記保持体は前記ハウジングを
収容する収容部を有する請求項１記載のトルク検出装
置。2. The connector includes a terminal connected to the coil via a lead wire, and a housing for protecting a connecting portion of the terminal to the lead wire, and the holding body has a housing portion for housing the housing. The torque detection device according to claim 1.
該嵌合孔に嵌合される凸起を前記保持体が有する請求項
１又は２記載のトルク検出装置。3. The housing has a fitting hole,
The torque detection device according to claim 1, wherein the holder has a protrusion that is fitted into the fitting hole.
離間した位置に前記導線の配線位置を拘束する拘束凹部
を有する請求項１乃至３の何れかに記載のトルク検出装
置。4. The torque detecting device according to claim 1, wherein the holding body has a restraining concave portion that restrains a wiring position of the conductive wire at a position separated from a holding position of the connector.
部及び該円筒部の一端に連なり、ラジアル方向内側へ曲
げ成形された鍔部を有するコイル収容環を備えており、
該コイル収容環は前記鍔部の円筒部との連なり部から円
筒部の他端に亘って切削加工されている請求項１記載の
トルク検出装置。5. The detection portion includes a cylindrical portion that accommodates the coil, and a coil accommodation ring that is connected to one end of the cylindrical portion and that has a flange portion that is bent and formed inward in a radial direction.
The torque detecting device according to claim 1, wherein the coil housing ring is cut from a portion of the collar portion that is continuous with the cylindrical portion to the other end of the cylindrical portion.
ルク検出装置と、前記コネクタに接続され、前記トルク
検出装置が検出したトルクに基づいて操舵補助用のモー
タを駆動する制御部と、前記モータの回転力を舵取機構
に伝動する伝動手段とを備えていることを特徴とする電
動式パワーステアリング装置。6. A torque detection device according to any one of claims 1 to 5, and a control unit that is connected to the connector and that drives a steering assisting motor based on the torque detected by the torque detection device. An electric power steering apparatus comprising: a power transmission unit configured to transmit the rotational force of the motor to a steering mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002027009A JP4010154B2 (en) | 2002-02-04 | 2002-02-04 | Torque detection device and electric power steering device using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002027009A JP4010154B2 (en) | 2002-02-04 | 2002-02-04 | Torque detection device and electric power steering device using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003227767A true JP2003227767A (en) | 2003-08-15 |
| JP4010154B2 JP4010154B2 (en) | 2007-11-21 |
Family
ID=27748659
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002027009A Expired - Fee Related JP4010154B2 (en) | 2002-02-04 | 2002-02-04 | Torque detection device and electric power steering device using the same |
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| Country | Link |
|---|---|
| JP (1) | JP4010154B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008087600A (en) * | 2006-09-29 | 2008-04-17 | Jtekt Corp | Transmission ratio variable device |
| US7448285B2 (en) * | 2003-08-28 | 2008-11-11 | Jtekt Corporation | Electric power steering system |
| WO2019017308A1 (en) * | 2017-07-19 | 2019-01-24 | 株式会社デンソー | Sensor unit, control unit, electric power steering device, steering system, and steer-by-wire system |
| WO2019017302A1 (en) * | 2017-07-19 | 2019-01-24 | 株式会社デンソー | Control unit, electric power steering device, steering system, and steer-by-wire system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4243768A1 (en) | 2020-11-12 | 2023-09-20 | Alkermes Pharma Ireland Limited | Immediate release multilayer tablet |
-
2002
- 2002-02-04 JP JP2002027009A patent/JP4010154B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7448285B2 (en) * | 2003-08-28 | 2008-11-11 | Jtekt Corporation | Electric power steering system |
| JP2008087600A (en) * | 2006-09-29 | 2008-04-17 | Jtekt Corp | Transmission ratio variable device |
| WO2019017308A1 (en) * | 2017-07-19 | 2019-01-24 | 株式会社デンソー | Sensor unit, control unit, electric power steering device, steering system, and steer-by-wire system |
| WO2019017302A1 (en) * | 2017-07-19 | 2019-01-24 | 株式会社デンソー | Control unit, electric power steering device, steering system, and steer-by-wire system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4010154B2 (en) | 2007-11-21 |
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