JPH10108449A - Stepping motor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily enable removal of a motor body from a circuit substrate. SOLUTION: This motor forms a circular laminate, surrounding the circumference of rotor 3 in the rotating direction with a rotor 3 composed of a permanent magnet, provided with a rotating shaft 31, excitation coils 43a (43b) wound around the circular bobbins 44, 45 and circular yokes 41 (42) and is also provided with a stator for driving the rotor 3 to rotate with the feeding control of the excitation coils 43a, (43b) and a couple of holding members 5, 6 which are provided face to face with each other, along the axial direction of the rotor 3 to hold this stator and holds the rotor 3 within the stator and moreover also provided with a motor body 1 in which the circular bobbins 44, 45 are holding the power feeding terminals 46, 47 to feed the excitation coils 43a (43b) and a circuit substrate 2, located in the axial direction of the rotor 3 to have the motor body 1 and having the power feeding terminals 20, 21 which are electrically connected to the power feeding terminals 46, 47. The power feeding terminals 20, 21 and power feeding terminals 46, 47 are extending along the axial direction of the rotor 3 and the power feeding terminals 46, 47 are formed loadable or unloadable to the terminals 20, 21.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明はステッピングモータ
に関し、詳しくは回路基板に搭載され且つこれと電気接
続されるステッピングモータに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stepping motor, and more particularly, to a stepping motor mounted on a circuit board and electrically connected thereto.

【０００２】[0002]

【従来の技術】従来よりステッピングモータは、各種Ｏ
Ａ機器、家電製品、自動車等の分野におけるアクチュエ
ータ部品として広く利用されており、例えば特開平８−
１１１９７１号公報に開示されているように、ステッピ
ングモータ本体を回路基板に取り付けて励磁コイルへの
通電とモータ自体の固定を図るタイプのものがある。2. Description of the Related Art Conventionally, a stepping motor has been used for various types of O.
A is widely used as an actuator component in the fields of devices, home appliances, automobiles, etc.
As disclosed in Japanese Patent No. 111971, there is a type in which a stepping motor body is mounted on a circuit board to energize an excitation coil and fix the motor itself.

【０００３】[0003]

【発明が解決しようとする課題】しかしながら、このよ
うなタイプのステッピングモータにあっては、端子を回
路基板に半田付けするために、回路基板からのモータ本
体の取り外しが容易ではなく、例えばステッピングモー
タを車両用計器のムーブメントとして使用した際にモー
タ本体の交換要求が生じたも、モータ本体のみを交換す
ることが難しく、回路基板ごと交換するか、専用の冶具
を使用して面倒な取り外し作業を強いられることとな
り、不経済であると共に作業性が悪いという問題があ
る。However, in such a stepping motor, it is not easy to remove the motor body from the circuit board because the terminals are soldered to the circuit board. When the motor was used as a vehicle instrument movement, there was a request to replace the motor body.However, it was difficult to replace only the motor body, and it was difficult to replace the entire circuit board or use a special jig to perform the troublesome removal work. There is a problem that it is uneconomical and workability is poor.

【０００４】本発明は、この点に着目してなされたもの
で、モータ本体の回路基板からの取り外しを可能あるい
は容易とし得るステッピングモータの提供を主な目的と
するものである。The present invention has been made in view of this point, and has as its main object to provide a stepping motor capable of removing or easily removing a motor body from a circuit board.

【０００５】[0005]

【課題を解決するための手段】本発明は、回転軸を備え
た永久磁石からなるロータと、環状ボビンに巻かれた励
磁コイルと環状ヨークとで前記ロータの回転方向周囲を
囲む環状積層体を構成し前記励磁コイルの通電制御によ
り前記ロータを回転駆動するステータと、このステータ
を挟むように前記ロータの軸方向に沿って互いに対向配
置され前記ロータを前記ステータ内に保持する一対の保
持部材とを有し、前記環状ボビンが前記励磁コイルに通
電する通電端子を保持してなるモータ本体と、前記ロー
タの軸方向に位置して前記モータ本体を搭載すると共に
前記通電端子に電気接続される給電端子を有する回路基
板とを備え、前記給電端子と前記通電端子の双方が前記
ロータの軸方向に沿って伸びると共に前記通電端子が前
記給電端子に対して着脱自在に形成されていることを特
徴とする。According to the present invention, there is provided a rotor comprising a permanent magnet having a rotating shaft, an exciting coil wound around an annular bobbin, and an annular yoke. A stator configured and configured to rotationally drive the rotor by energization control of the excitation coil, and a pair of holding members that are arranged to face each other along the axial direction of the rotor so as to sandwich the stator and hold the rotor in the stator. Wherein the annular bobbin holds an energizing terminal for energizing the exciting coil, and a power supply mounted in the axial direction of the rotor and mounting the motor main body and electrically connected to the energizing terminal. A circuit board having a terminal, wherein both the power supply terminal and the power supply terminal extend along the axial direction of the rotor, and the power supply terminal is connected to the power supply terminal. Characterized in that it is removably formed.

【０００６】また前記通電端子もしくは前記給電端子が
前記給電端子もしくは前記通電端子を挿入する挿入部を
有し、この挿入部は少なくとも前記給電端子側もしくは
前記通電端子側に開口する筒状に形成され、その内部に
前記給電端子もしくは前記通電端子と弾発接触する接触
部を有することを特徴とする。Further, the power supply terminal or the power supply terminal has an insertion portion into which the power supply terminal or the power supply terminal is inserted, and this insertion portion is formed in a cylindrical shape that opens at least on the power supply terminal side or the power supply terminal side. And a contact portion for resiliently contacting the power supply terminal or the power supply terminal therein.

【０００７】また前記保持部材のうち少なくとも一方側
に前記通電端子を絶縁保持する保持部を設けたことを特
徴とする。[0007] A holding portion is provided on at least one side of the holding member for insulatingly holding the current-carrying terminal.

【０００８】また前記回路基板側に配置される前記保持
部材と前記回路基板との間に絶縁部材を設け、この絶縁
部材に前記通電端子を保持する保持部を設けたことを特
徴とする。An insulating member is provided between the holding member disposed on the circuit board side and the circuit board, and a holding portion for holding the energizing terminal is provided on the insulating member.

【０００９】また前記回路基板側に配置される前記保持
部材に前記給電端子を前記通電端子に絶縁ガイドする案
内部を形成したことを特徴とする。[0009] Further, a guide portion for insulatingly guiding the power supply terminal to the power supply terminal is formed on the holding member arranged on the circuit board side.

【００１０】また前記回路基板側に配置される前記保持
部材と前記回路基板との間に絶縁部材を設け、この絶縁
部材に前記給電端子を前記通電端子にガイドする案内部
を形成したことを特徴とする。An insulating member is provided between the holding member disposed on the circuit board side and the circuit board, and a guide portion for guiding the power supply terminal to the power supply terminal is formed on the insulating member. And

【００１１】また前記保持部材のうち少なくとも一方側
に前記通電端子あるいは前記給電部材と前記ヨークとの
間に介在する絶縁部を形成したことを特徴とする。[0011] Further, an insulating portion interposed between the power supply terminal or the power supply member and the yoke is formed on at least one side of the holding member.

【００１２】また前記回路基板側に配置される前記保持
部材と前記回路基板との間に絶縁部材を設け、この絶縁
部材に前記通電端子あるいは前記給電端子と前記ヨーク
との間に介在する絶縁部を形成したことを特徴とする。Further, an insulating member is provided between the holding member disposed on the circuit board side and the circuit board, and an insulating portion interposed between the current-carrying terminal or the power-supplying terminal and the yoke is provided on the insulating member. Is formed.

【００１３】また前記モータ本体が前記回路基板にネジ
止め固定されることを特徴とする。Further, the motor body is fixed to the circuit board with screws.

【００１４】また前記回路基板側に位置する前記保持部
材もしくは前記絶縁部材に前記回路基板に貫通係合して
前記モータ本体を前記回路基板に固定する弾性フックを
有することを特徴とする。Further, an elastic hook for penetratingly engaging the circuit board and fixing the motor body to the circuit board is provided on the holding member or the insulating member located on the circuit board side.

【００１５】[0015]

【発明の実施の形態】本発明によれば、ステッピングモ
ータは、回転軸を備えた永久磁石からなるロータと、環
状ボビンに巻かれた励磁コイルと環状ヨークとでロータ
の回転方向周囲を囲む環状積層体を構成し励磁コイルの
通電制御によりロータを回転駆動するステータと、この
ステータを挟むようにロータの軸方向に沿って互いに対
向配置されロータをステータ内に保持する一対の保持部
材とを有し、環状ボビンが励磁コイルに通電する通電端
子を保持してなるモータ本体と、ロータの軸方向に位置
してモータ本体を搭載すると共に通電端子に電気接続さ
れる給電端子を有する回路基板とを備え、給電端子と通
電端子の双方が前記ロータの軸方向に沿って伸びると共
に通電端子が給電端子に対して着脱自在に形成されるこ
とにより、回路基板からのモータ本体の取り外しが可能
あるいは容易となり、経済性，作業性に優れる。DESCRIPTION OF THE PREFERRED EMBODIMENTS According to the present invention, a stepping motor comprises a rotor composed of a permanent magnet having a rotating shaft, an exciting coil wound around an annular bobbin, and an annular yoke. The stator includes a stator that forms a laminate and rotationally drives the rotor by controlling the energization of an excitation coil, and a pair of holding members that are arranged opposite to each other along the axial direction of the rotor so as to sandwich the stator and hold the rotor in the stator. A motor body having an annular bobbin holding an energizing terminal for energizing the exciting coil, and a circuit board having a power supply terminal mounted in the axial direction of the rotor and having the motor body mounted thereon and electrically connected to the energizing terminal. The power supply terminal and the power supply terminal extend in the axial direction of the rotor, and the power supply terminal is formed detachably with respect to the power supply terminal. Removing the motor body from becomes possible or easy, economical, excellent workability.

【００１６】また通電端子もしくは給電端子が、給電端
子もしくは通電端子を挿入する挿入部を有し、この挿入
部は少なくとも給電端子側もしくは通電端子側に開口す
る筒状に形成され、その内部に給電端子もしくは通電端
子と弾発接触する接触部を設ければ、通電端子と給電端
子の接続状態が良好に維持され、接続信頼性に優れる。The power supply terminal or the power supply terminal has an insertion portion into which the power supply terminal or the power supply terminal is inserted. The insertion portion is formed in a cylindrical shape that opens at least on the power supply terminal side or the power supply terminal side. By providing a contact portion that resiliently contacts the terminal or the current-carrying terminal, the connection state between the current-carrying terminal and the power-supply terminal is favorably maintained, and the connection reliability is excellent.

【００１７】また保持部材のうち少なくとも一方側に通
電端子あるいは給電端子を絶縁保持する保持部を設けれ
ば、通電端子あるいは給電端子の変形や位置バラツキが
抑制され、通電端子と給電端子との接続時並びに取り外
し時の作業性に優れる。If a holding portion for insulating and holding the current-carrying terminal or the power supply terminal is provided on at least one side of the holding member, deformation and positional variation of the current-carrying terminal or the power supply terminal can be suppressed, and the connection between the current-carrying terminal and the power supply terminal can be prevented. Excellent workability when removing and removing.

【００１８】また回路基板側に配置される保持部材と回
路基板との間に絶縁部材を設け、この絶縁部材に通電端
子あるいは給電端子を保持する保持部を設けても、通電
端子あるいは給電端子の変形や位置バラツキが抑制さ
れ、通電端子と給電端子との接続時並びに取り外し時の
作業性に優れる。Further, even if an insulating member is provided between the holding member disposed on the circuit board side and the circuit board, and a holding portion for holding the power supply terminal or the power supply terminal is provided on the insulating member, the power supply terminal or the power supply terminal may be provided. Deformation and positional variation are suppressed, and workability when connecting and disconnecting the power supply terminal and the power supply terminal is excellent.

【００１９】また回路基板側に配置される保持部材に給
電端子を通電端子に絶縁ガイドする案内部を形成すれ
ば、通電端子と給電端子との接続作業性に優れる。Further, if a guide portion for insulatingly guiding the power supply terminal to the power supply terminal is formed on the holding member disposed on the circuit board side, the connection workability between the power supply terminal and the power supply terminal is excellent.

【００２０】また回路基板側に配置される保持部材と回
路基板との間に絶縁部材を設け、この絶縁部材に給電端
子を通電端子にガイドする案内部を形成しても、通電端
子と給電端子との接続作業性に優れる。Further, even if an insulating member is provided between the holding member disposed on the circuit board and the circuit board, and a guide portion for guiding the power supply terminal to the power supply terminal is formed on the insulating member, the power supply terminal and the power supply terminal may be provided. Excellent connection workability.

【００２１】また保持部材のうち少なくとも一方側に通
電端子あるいは前記給電端子とヨークとの間に介在する
絶縁部を形成すれば、通電端子とヨークとの間の短絡が
防止される。In addition, if at least one of the holding members is provided with a current-carrying terminal or an insulating portion interposed between the power-supply terminal and the yoke, a short circuit between the current-carrying terminal and the yoke is prevented.

【００２２】また回路基板側に配置される保持部材と回
路基板との間に絶縁部材を設け、この絶縁部材に通電端
子あるいは給電端子とヨークとの間に介在する絶縁部を
形成しても、通電端子とヨークとの間の短絡が防止され
る。Further, even if an insulating member is provided between the holding member arranged on the circuit board side and the circuit board, and an insulating portion interposed between the power supply terminal or the power supply terminal and the yoke is formed on the insulating member, A short circuit between the energizing terminal and the yoke is prevented.

【００２３】またモータ本体を回路基板にネジ止め固定
すれば、モータ本体と回路基板との固定が確実なものと
なる。Further, if the motor body is fixed to the circuit board by screwing, the motor body and the circuit board can be securely fixed.

【００２４】また回路基板側に位置する保持部材もしく
は絶縁部材に回路基板に貫通係合してモータ本体を回路
基板に固定する弾性フックを設ければ、モータ本体と回
路基板との固定をワンタッチで行うことができ、組み付
け作業性に優れる。Further, if an elastic hook for penetratingly engaging the circuit board and fixing the motor body to the circuit board is provided on the holding member or the insulating member located on the circuit board side, the motor body and the circuit board can be fixed with one touch. It can be performed, and it is excellent in assembling workability.

【００２５】[0025]

【実施例】以下、添付図面に基づいて本発明の実施例を
説明する。Embodiments of the present invention will be described below with reference to the accompanying drawings.

【００２６】図１は、本発明の第１実施例に係わるステ
ッピングモータの斜視図、図２はモータ本体の分解斜視
図、図３はロータを含むステータの分解斜視図、図４は
図１のＸ−Ｘ線に沿った断面図である。FIG. 1 is a perspective view of a stepping motor according to a first embodiment of the present invention, FIG. 2 is an exploded perspective view of a motor body, FIG. 3 is an exploded perspective view of a stator including a rotor, and FIG. It is sectional drawing which followed the XX line.

【００２７】本実施例によるステッピングモータは、図
１に示すように、例えばＰＭ型からなるモータ本体１と
回路基板２とで構成され、モータ本体１は後述するロー
タの軸方向に沿って回路基板２上に搭載されている。As shown in FIG. 1, the stepping motor according to the present embodiment includes a motor body 1 of, for example, a PM type and a circuit board 2, and the motor body 1 is mounted on a circuit board along an axial direction of a rotor described later. 2 mounted.

【００２８】モータ本体１は、図２に示すように、回転
軸３１を有するロータ３と、このロータ３の回転方向周
囲を囲むステータ４と、このステータ４をロータ３の軸
方向に沿って挟むように対向配置され、ステータ４内に
ロータ３を保持する第１，第２の保持部材５，６とから
なる。As shown in FIG. 2, the motor body 1 has a rotor 3 having a rotating shaft 31, a stator 4 surrounding the circumference of the rotor 3 in the rotation direction, and sandwiches the stator 4 along the axial direction of the rotor 3. And the first and second holding members 5 and 6 for holding the rotor 3 in the stator 4.

【００２９】ロータ３は、その周面に所定幅（ピッチ）
を有してＮ，Ｓ交互に配列される複数の磁極を有する永
久磁石からなり、第１，第２の保持部材５，６を通じて
ステータ４内に回転自在に保持される。The rotor 3 has a predetermined width (pitch) on its peripheral surface.
And permanent magnets having a plurality of magnetic poles alternately arranged N and S, and are rotatably held in the stator 4 through the first and second holding members 5 and 6.

【００３０】ステータ４は、図３に示すように、磁性金
属材料からなる略円環カップ状の２つの外ヨーク（環状
ヨーク）４１と、同じく磁性金属材料からなる略円環板
状の２つの内ヨーク（環状ヨーク）４２と、励磁コイル
４３ａ，４３ｂが巻かれた環状ボビン４４，４５とから
なり、これら外，内ヨーク４１，４２と環状ボビン４
４，４５とは、互いに対をなす外，内ヨーク４１，４２
間に環状ボビン４４，４５の各々を挟むように同心的に
積層されてロータ３の回転方向周囲を囲む積層体を構成
する。As shown in FIG. 3, the stator 4 has two substantially annular cup-shaped outer yokes (annular yokes) 41 made of a magnetic metal material, and two substantially annular plate-shaped outer yokes similarly made of a magnetic metal material. An inner yoke (annular yoke) 42 and annular bobbins 44 and 45 around which exciting coils 43a and 43b are wound.
The outer and inner yokes 41 and 42 are paired with each other.
The annular bobbins 44 and 45 are concentrically stacked so as to sandwich each of the annular bobbins 44 and 45 therebetween, thereby forming a stacked body that surrounds the circumference of the rotor 3 in the rotation direction.

【００３１】また外，内ヨーク４１，４２には、環状ボ
ビン４４，４５内で各々がロータ３の外径よりもやや大
きな環状櫛歯型の配列形状をもって組み合わされると共
にロータ３の前記磁極と所定間隔を隔てて対向する複数
の極歯４１ａ，４２ａが形成されており、この極歯４１
ａ，４２ａを励磁コイル４３ａ，４３ｂへの通電制御に
より磁化させることにより、ロータ３の前記磁極との間
に回転磁界を形成させ、ロータ３を回転させることがで
きる。The outer and inner yokes 41 and 42 are combined with each other in the annular bobbins 44 and 45 in an annular comb-teeth type arrangement shape slightly larger than the outer diameter of the rotor 3, and are combined with the magnetic poles of the rotor 3. A plurality of pole teeth 41a and 42a facing each other at an interval are formed.
By magnetizing the a and 42a by controlling the energization of the exciting coils 43a and 43b, a rotating magnetic field is formed between the magnetic poles of the rotor 3 and the magnetic poles, and the rotor 3 can be rotated.

【００３２】一方、環状ボビン４４，４５の各々には、
励磁コイル４３ａ，４３ｂと導通する通電端子４６，４
７が固定されており、この通電端子４６，４７は、略平
板状の基部４６０，４７０と、この基部４６０，４７０
から一体に両端が開口する四角筒状に形成されると共に
後に詳述する回路基板２の給電端子が着脱自在に挿入さ
れる挿入部４６１，４７１と、この挿入部４６１，４７
１内に一体に「く」の字型に切り起こし形成された弾性
を有する接触部４６２，４７２（図４参照）とを有し、
基部４６０，４７０の一部が環状ボビン４４，４５のフ
ランジ状部分にインサート成形されて固定されており、
この場合、環状ボビン４４から露出する基部４６０に励
磁コイル４３ａの末端部が電気接続され、同じく環状ボ
ビン４５から露出する基部４７０に励磁コイル４３ｂの
末端部が電気接続されている。On the other hand, each of the annular bobbins 44 and 45 has
Energizing terminals 46, 4 that are electrically connected to the exciting coils 43a, 43b
7 are fixed, and the energizing terminals 46 and 47 are substantially flat bases 460 and 470 and the bases 460 and 470.
And 461, 471 into which a power supply terminal of the circuit board 2, which will be described in detail later, is detachably inserted.
1 having elastic contact portions 462 and 472 (see FIG. 4) formed by cutting and raising in the shape of a "ku" integrally.
A part of the bases 460, 470 is insert-molded and fixed to the flange-like portions of the annular bobbins 44, 45,
In this case, the end of the excitation coil 43a is electrically connected to the base 460 exposed from the annular bobbin 44, and the end of the excitation coil 43b is electrically connected to the base 470 also exposed from the annular bobbin 45.

【００３３】また図３において挿入部４６１，４７１
は、環状ボビン４４，４５への励磁コイル４３ａ，４３
ｂの巻線を容易とするために、基部４６０，４７０と同
一方向に伸びているが、環状ボビン４４，４５と外，内
ヨーク４１，４２を組み付け後に、第２図に示すごと
く、ロータ３の軸方向と略平行となるように折り曲げら
れる。In FIG. 3, the insertion portions 461 and 471 are provided.
Are excitation coils 43a, 43 to annular bobbins 44, 45.
In order to facilitate the winding of b, it extends in the same direction as the bases 460 and 470, but after assembling the annular bobbins 44 and 45 and the outer and inner yokes 41 and 42, as shown in FIG. Is bent so as to be substantially parallel to the axial direction.

【００３４】第１，第２の保持部材５，６は、図２に示
すように、その中心にロータ３の回転軸３１を軸受する
貫通孔状の軸受部５０，６０を有する板状の絶縁部材か
らなり、第１の保持部材５，６の、折り曲げられた通電
端子４６，４７の挿入部４６１，４７１に対応する位置
には、通電端子４６，４６の挿入部４６１，４７１を保
持する第１，第２の保持部５１，６１（保持部）が形成
されている。As shown in FIG. 2, the first and second holding members 5 and 6 are plate-shaped insulating members having through-hole-shaped bearing portions 50 and 60 which support the rotating shaft 31 of the rotor 3 at the center thereof. The first holding members 5 and 6 hold the insertion portions 461 and 471 of the energization terminals 46 and 46 at positions corresponding to the insertion portions 461 and 471 of the bent energization terminals 46 and 47 of the first holding members 5 and 6. First and second holding portions 51 and 61 (holding portions) are formed.

【００３５】第１の保持部５１は本実施例の場合、挿入
部４６１，４７１を覆う有底枠体状に形成されていて、
挿入部４６１，４７１の周囲を収納保持し得るよう挿入
部４６１，４７１の周囲外径に略合致した外径を有して
挿入部４６１，４７１の延長方向に沿って伸びると共に
ステータ４への第１の保持部材５の組み付け方向（ロー
タ３の軸方向）において挿入部４６１，４７１側に開口
する収納部５２を形成する収納壁部５３と、収納部５２
の底部を形成し挿入部４６１，４７１の基部４６０，４
７０側端部を受ける受部５４（図４参照）と、収納壁部
５３の一部を形成すると共に収納部５２に挿入部４６
１，４７１を収納した際に挿入部４６１，４７１と外ヨ
ーク４１との接触を防止する絶縁部５５とを有し、絶縁
部５５には通電端子４６，４７の基部４６０，４７０を
挿通するスリット５６が形成されている。In the case of the present embodiment, the first holding portion 51 is formed in a bottomed frame shape that covers the insertion portions 461 and 471.
The outer circumference of the insertion portions 461 and 471 has an outer diameter substantially matching the outer circumference of the insertion portions 461 and 471 so that the circumference of the insertion portions 461 and 471 can be accommodated and extended. A storage wall portion 53 that forms a storage portion 52 that opens toward the insertion portions 461 and 471 in the mounting direction of the first holding member 5 (the axial direction of the rotor 3);
And the bases 460, 4 of the insertion portions 461, 471
A receiving portion 54 (see FIG. 4) for receiving the end portion on the side of 70 and an insertion portion 46 which forms a part of the storage wall portion 53 and is inserted into the storage portion 52.
An insulating portion 55 for preventing contact between the insertion portions 461 and 471 and the outer yoke 41 when the first and the first 471 are stored, and a slit for inserting the base portions 460 and 470 of the current-carrying terminals 46 and 47 into the insulating portion 55. 56 are formed.

【００３６】第２の保持部６１は本実施例の場合、挿入
部４６１，４７１を嵌入する弾性腕片状に形成されてい
て、挿入部４６１，４７１の先端側が収容される凹部６
２を形成する弾性変形可能な複数の突出部６３と、この
突出部６３の先端側に形成され凹部６２に収容した挿入
部４６１，４７１を凹部６２内に保持する突部６４とを
有している。In the case of this embodiment, the second holding portion 61 is formed in the shape of an elastic arm into which the insertion portions 461 and 471 are fitted, and the concave portion 6 in which the distal ends of the insertion portions 461 and 471 are accommodated.
2, a plurality of elastically deformable protrusions 63 and a protrusion 64 formed at the distal end of the protrusion 63 and holding the insertion portions 461 and 471 housed in the recess 62 in the recess 62. I have.

【００３７】回路基板２は、図２，図４に示すように、
通電端子４６，４７の挿入部４６１，４７１と同様にロ
ータ３の軸方向に延長するピン端子状の複数の給電端子
２０，２１と、励磁コイル４３ａ，４３ａの通電制御を
行うための図示しない駆動回路と電気的に接続された回
路パターン２２とを有し、給電端子２０，２１は、モー
タ本体１を回路基板２上に配置した際、通電端子４６，
４７の挿入部４６１，４７１内に挿入され、接触部４６
２，４７２と接触するもので、一方、回路パターン２２
は、給電端子２０，２１と電気的に接続されている。The circuit board 2 is, as shown in FIGS.
Similar to the insertion portions 461 and 471 of the power supply terminals 46 and 47, a plurality of pin-shaped power supply terminals 20 and 21 extending in the axial direction of the rotor 3 and a drive (not shown) for controlling power supply to the excitation coils 43a and 43a. The power supply terminals 20 and 21 are provided when the motor body 1 is disposed on the circuit board 2.
47 are inserted into the insertion portions 461 and 471 of the
2,472, while the circuit pattern 22
Are electrically connected to the power supply terminals 20 and 21.

【００３８】つぎに本実施例によるステッピングモータ
の組み付けついて説明すると、まず、図３に示した外，
内ヨーク４１，４２と環状ボビン４４，４５とを、図示
した順序で同心的に積層固定することによりステータ４
が完成する。つぎにステータ４の底部側に第２の保持部
材６を配置してロータ３の回転軸３１の一端側を軸受部
６０で軸支すると共にステータ４から外部に突出する通
電端子４６，４７の挿入部４６１，４７１を略直角に折
り曲げてその先端を第２の保持部６１の凹部６２内に嵌
入保持し、挿入部４６１，４７１の延長方向をロータ３
の軸方向と平行とする（第２図参照）。つぎに第１の保
持部材５をステータ４の前方に配置してロータ３の回転
軸３１の他端側を軸受部５０で軸支すると同時に第１の
保持部５１の収納部５２内に通電端子４６，４７の挿入
部４６１，４７１を収納してモータ本体１が完成する。
これにより通電端子４６，４７の挿入部４６１，４７１
は、第１，第２の保持部５０，６０を通じて良好に保持
され、その位置が規制される。なお、第１，第２の保持
部材５，６のステータ４に対する固定は、環状ボビン４
４に形成され外ヨーク４１を貫通する図示しない突起と
の熱溶着により図ることができる。つぎにモータ本体１
を回路基板２上に搭載すると同時に通電端子４６，４７
の挿入部４６１，４７１に回路基板２の給電端子２０，
２１を挿入して完成である（図４参照）。これにより給
電端子２０，２１は、通電端子４６，４７の挿入部４６
１，４７１内で接触部４６２，４７２と弾発接触し、通
電端子４６，４７と給電端子２０，２１との電気接続が
なされ、同時に励磁コイル４３ａ，４３ｂと駆動回路と
の通電も果たされ、しかも通電端子４６，４７と給電端
子２０，２１との電気接続は着脱自在な構成となる。Next, the assembling of the stepping motor according to the present embodiment will be described.
The inner yokes 41 and 42 and the annular bobbins 44 and 45 are concentrically laminated and fixed in the order shown in the drawing to form the stator 4.
Is completed. Next, the second holding member 6 is arranged on the bottom side of the stator 4, and one end of the rotating shaft 31 of the rotor 3 is supported by the bearing 60, and the current-carrying terminals 46 and 47 projecting from the stator 4 to the outside are inserted. The portions 461 and 471 are bent at substantially right angles, and the ends thereof are fitted and held in the recesses 62 of the second holding portion 61, and the extension direction of the insertion portions 461 and 471 is set to the rotor 3.
(See FIG. 2). Next, the first holding member 5 is disposed in front of the stator 4, and the other end of the rotating shaft 31 of the rotor 3 is supported by the bearing 50. The motor body 1 is completed by housing the insertion portions 461 and 471 of the 46 and 47.
As a result, the insertion portions 461 and 471 of the conduction terminals 46 and 47 are formed.
Is satisfactorily held through the first and second holding portions 50 and 60, and its position is regulated. The first and second holding members 5 and 6 are fixed to the stator 4 by an annular bobbin 4.
4, and can be achieved by thermal welding with a projection (not shown) penetrating the outer yoke 41. Next, the motor body 1
Are mounted on the circuit board 2 and at the same time, the energizing terminals 46 and 47
The power supply terminals 20 of the circuit board 2 are inserted into the insertion portions 461 and 471, respectively.
21 is completed (see FIG. 4). Thereby, the power supply terminals 20 and 21 are inserted into the insertion portions 46 of the power supply terminals 46 and 47.
1, 471 make resilient contact with the contact portions 462, 472, and the electrical connection between the power supply terminals 46, 47 and the power supply terminals 20, 21 is made, and at the same time, the power supply between the excitation coils 43a, 43b and the drive circuit is achieved. In addition, the electrical connection between the power supply terminals 46 and 47 and the power supply terminals 20 and 21 is detachable.

【００３９】以上のように本実施例によれば、回転軸３
１を備えた永久磁石からなるロータ３と、環状ボビン４
４，４５に巻かれた励磁コイル４３ａ，４３ｂと環状ヨ
ーク４１，４２とでロータ３の回転方向周囲を囲む環状
積層体を構成し励磁コイル４３ａ，４３ｂの通電制御に
よりロータ３を回転駆動するステータ４と、このステー
タ４を挟むようにロータ３の軸方向に沿って互いに対向
配置されロータ３をステータ４内に保持する一対の保持
部材５，６とを有し、環状ボビン４４，４５が励磁コイ
ル４３ａ，４３ｂに通電する通電端子４６，４７を保持
してなるモータ本体１と、ロータ３の軸方向に位置して
モータ本体１を搭載すると共に通電端子４６，４７に電
気接続される給電端子２０，２１を有する回路基板２と
を備え、給電端子２０，２１と通電端子４６，４７の双
方がロータ３の軸方向に沿って伸びると共に通電端子４
６，４７が給電端子２０，２１に対して着脱自在に形成
されることにより、モータ本体１もしくは回路基板２を
交換する際、モータ本体１の取り外しが可能であるた
め、モータ本体１もしくは回路基板２の何れかを交換す
ればよいので経済性が高く、また専用の器具を使用せず
とも、モータ本体１を容易に取り外すことができ、作業
性を高めることできる。As described above, according to the present embodiment, the rotating shaft 3
A rotor 3 consisting of a permanent magnet with
Exciting coils 43a, 43b wound around 4, 45 and annular yokes 41, 42 form an annular laminated body surrounding the circumference of the rotor 3 in the rotational direction, and a stator for rotating the rotor 3 by controlling the energization of the exciting coils 43a, 43b. 4 and a pair of holding members 5 and 6 which are arranged to face each other along the axial direction of the rotor 3 so as to sandwich the stator 4 and hold the rotor 3 in the stator 4, and the annular bobbins 44 and 45 are excited. A motor main body 1 holding energizing terminals 46 and 47 for energizing the coils 43a and 43b, and a power supply terminal mounted on the motor main body 1 located in the axial direction of the rotor 3 and electrically connected to the energizing terminals 46 and 47. Circuit board 2 having power supply terminals 20, 21 and power supply terminals 46, 47 both extending in the axial direction of rotor 3 and power supply terminals
The motor body 1 or the circuit board can be detached when the motor body 1 or the circuit board 2 is replaced by forming the motor body 1 or the circuit board 2 by detachably forming the power supply terminals 20 and 21. Therefore, the motor body 1 can be easily removed without using a dedicated tool, and the workability can be improved.

【００４０】また本実施例によれば、通電端子４６，４
７が給電端子２０，２１を挿入する挿入部４６１，４７
１を有し、この挿入部４６１，４７１を少なくとも給電
端子２０，２１側に開口する筒状に形成し、その内部に
給電端子２０，２１と弾発接触する接触部４６２，４７
２を設けたことにより、通電端子４６，４７と給電端子
２０，２１の接続状態を良好に維持することができ、接
続信頼性を高めることができる。According to the present embodiment, the current-carrying terminals 46, 4
7 are insertion portions 461 and 47 into which the power supply terminals 20 and 21 are inserted.
The insertion portions 461 and 471 are formed in a cylindrical shape that opens at least on the side of the power supply terminals 20 and 21, and the contact portions 462 and 47 that resiliently contact the power supply terminals 20 and 21 are provided therein.
By providing 2, the connection state between the power supply terminals 46 and 47 and the power supply terminals 20 and 21 can be favorably maintained, and the connection reliability can be improved.

【００４１】また本実施例によれば、第１，第２の保持
部材５，６に通電端子４６，４７を絶縁保持する第１，
第２の保持部５１，６１を設けたことにより、通電端子
４６，４７が位置規制され、通電端子４６，４７の変形
や位置バラツキを抑制することができ、例えば通電端子
４６，４７と給電端子２０，２１との接続時及び取り外
し時に通電端子４６，４７が動いてしまったり、給電端
子２０，２１との接続時の位置合わせに手間取るといっ
た不具合を解消でき、作業性を高めることができる。According to this embodiment, the first and second holding members 5 and 6 insulate and hold the current-carrying terminals 46 and 47 insulated.
By providing the second holding portions 51 and 61, the positions of the energizing terminals 46 and 47 are regulated, and deformation and positional variation of the energizing terminals 46 and 47 can be suppressed. Problems such as the energizing terminals 46 and 47 moving when connecting to and disconnecting from the power supply terminals 20 and 21 and troublesome positioning for connecting to the power supply terminals 20 and 21 can be eliminated, and workability can be improved.

【００４２】また本実施例では、第１，第２の保持部材
５，６を合成樹脂等の絶縁部材から形成したが、第１，
第２の保持部５１，６１を形成する領域のみを合成樹脂
からなる絶縁部材で形成し、その他の部分を（導電性）
金属にて形成することもできる。In this embodiment, the first and second holding members 5 and 6 are formed of an insulating member such as a synthetic resin.
Only the regions where the second holding portions 51 and 61 are formed are formed of an insulating member made of synthetic resin, and the other portions are (conductive).
It can also be formed of metal.

【００４３】また本実施例では、特に第１の保持部材５
の第１の保持部５１に受部５４を設けたことにより、給
電端子２０，２１を通電端子４６，４７の挿入部４６
１，４７１に挿入する際に、挿入部４６１，４７１を挿
入方向に沿って受けることができるため、挿入作業性を
高めることができ、通電端子４６，４７の強度が弱い場
合に有利である。In this embodiment, in particular, the first holding member 5
By providing the receiving portion 54 in the first holding portion 51, the power supply terminals 20 and 21 can be connected to the insertion portions 46 of the power supply terminals 46 and 47.
Since the insertion portions 461 and 471 can be received along the insertion direction when inserting into the insertion terminals 1 and 471, the insertion workability can be improved, and this is advantageous when the strength of the current-carrying terminals 46 and 47 is weak.

【００４４】また本実施例によれば、第１の保持部材５
の第１の保持部５１の内側を利用して通電端子４６，４
７と外ヨーク４１との間に介在する絶縁部５５を形成し
たことにより、通電端子４６，４７とヨーク４１との接
触による短絡を防止することができ、この場合、絶縁部
５５は、第２の保持部材６に形成することもできる。According to the present embodiment, the first holding member 5
Utilizing the inside of the first holding portion 51, the current-carrying terminals 46, 4
By forming the insulating portion 55 interposed between the outer terminal 7 and the outer yoke 41, it is possible to prevent a short circuit due to the contact between the current-carrying terminals 46 and 47 and the yoke 41. In this case, the insulating portion 55 Can be formed on the holding member 6.

【００４５】図５は、本発明の第２実施例として、通電
端子４６（４７）及び給電端子２０（２１）、並びに第
１，第２の保持部５１，５２の変形例を示すもので、す
なわち本実施例では、通電端子４６（４７）を長手板状
に形成して基部４６０（４７０）とロータ３の軸方向に
折曲される接続部４６３（４７３）を形成し、給電端子
２０（２１）を有底筒状に形成して接続部４６３（４７
３）を挿入する挿入部２３（２４）と接続部４６３（４
７３）と接触する接触部２５（２６）を形成すると共
に、第１の保持部材５に形成する保持部５１を通電端子
４６（４７）の基部４６０（４７０）を受ける受板状と
し、且つ第２の保持部材６に形成する保持部６１を貫通
孔６５を有するフランジ状になし、この貫通孔６５に通
電端子４６（４７）の接続部４６３（４７３）を貫通保
持したもので、かかる構成によっても前記第１実施例と
略同様の効果を得ることができる。なおこの場合、第２
の保持部材６には、通電端子４６（４７）及び給電端子
２０（２１）と外ヨーク４１との間に介在してこれらの
接触を防止する絶縁部６６が形成されている。また第２
の保持部材６に給電端子２０（２１）を保持してその位
置を規制する保持部分（保持部）を別途設けてもよい。FIG. 5 shows a modification of the power supply terminal 46 (47), the power supply terminal 20 (21), and the first and second holders 51 and 52 as a second embodiment of the present invention. That is, in the present embodiment, the power supply terminals 46 (47) are formed in a long plate shape to form the base 460 (470) and the connection portion 463 (473) bent in the axial direction of the rotor 3, and the power supply terminal 20 (47). 21) is formed in a bottomed cylindrical shape, and the connecting portion 463 (47) is formed.
3) and the connecting portion 463 (4)
73), and the holding portion 51 formed on the first holding member 5 is formed in a receiving plate shape for receiving the base 460 (470) of the conducting terminal 46 (47). The holding portion 61 formed on the second holding member 6 is formed in a flange shape having a through hole 65, and the connection portion 463 (473) of the power supply terminal 46 (47) is held through the through hole 65. The same effects as those of the first embodiment can be obtained. In this case, the second
The holding member 6 is provided with an insulating portion 66 interposed between the power supply terminal 46 (47) and the power supply terminal 20 (21) and the outer yoke 41 to prevent contact therebetween. Also the second
A holding portion (holding portion) for holding the power supply terminal 20 (21) on the holding member 6 and regulating the position thereof may be separately provided.

【００４６】また図５の変形例として図示しないが、第
２の保持部６１を形成しない代わりに第１の保持部５１
をさらに給電端子２０（２１）側に延長して給電２０
（２１）を保持する枠状の保持部分（保持部）を形成
し、通電端子４６，４７と給電端子２０（２１）の双方
を第１の保持部５１で保持するようにしてもよい。Although not shown as a modification of FIG. 5, instead of forming the second holding portion 61, the first holding portion 51
Is further extended to the power supply terminal 20 (21) side to
A frame-shaped holding portion (holding portion) for holding (21) may be formed, and both the power supply terminals 46 and 47 and the power supply terminal 20 (21) may be held by the first holding portion 51.

【００４７】図６は、本発明の第３実施例として、第２
の保持部６１の変形例を示すもので、すなわち本実施例
では、第２の保持部６１は通電端子４６（４７）の外径
に応じた有底枠体状に形成されていて、通電端子４６
（４７）を収納保持する収納壁部６７と、この収納壁部
６７の底部に形成されテーパ部６８を有する貫通孔状の
案内部６９とを備え、このテーパ部６８付きの案内部６
９により、給電端子２０（２１）を通電端子４６（４
７）の挿入部４６１（４７１）へ絶縁ガイドする構成と
なっており、かかる構成により通電端子４６（４７）と
給電端子２０（２１）とを接続する際に給電端子２０
（２１）をガイドすることができ、接続作業性を高める
ことができる。なおこの場合、案内部６９は給電端子２
０（２１）を保持してその位置を規制する保持部の機能
も有し、また第２の保持部６１の外ヨーク４１側の収納
壁部６７は絶縁部（６６）の機能も有している。FIG. 6 shows a second embodiment of the present invention.
In this embodiment, the second holding portion 61 is formed in a bottomed frame shape corresponding to the outer diameter of the energizing terminal 46 (47). 46
A storage wall portion 67 for storing and holding (47), and a through-hole-shaped guide portion 69 formed at the bottom of the storage wall portion 67 and having a tapered portion 68, the guide portion 6 having the tapered portion 68 is provided.
9, the power supply terminal 20 (21) is connected to the power supply terminal 46 (4
7) is configured to be insulated and guided to the insertion portion 461 (471). With this configuration, the power supply terminal 20 (21) is connected when the power supply terminal 46 (47) and the power supply terminal 20 (21) are connected.
(21) can be guided, and connection workability can be improved. In this case, the guide 69 is connected to the power supply terminal 2.
The storage wall 67 on the side of the outer yoke 41 of the second holding part 61 also has a function of an insulating part (66). I have.

【００４８】図７は、本発明の第４実施例を示すもの
で、第２の保持部材６と回路基板２との間に専用の絶縁
部材７を設ける場合を示している。すなわち、本実施例
では、絶縁部材７に通電端子４６（４７）を保持する前
記第１実施例と同様な第２の保持部７１を設けたもので
あり、この保持部７１は凹部７２と突出部７３と突部７
４を有している。なお保持部７１は、本実施例の構造に
限らず、前記第２実施例の第２の保持部６１のように、
貫通孔を有するフランジ状になし、この貫通孔で通電端
子４６（４７）を保持したり、また前記第３実施例の第
２の保持部６１のように、収納壁部とテーパ部付きの案
内部を有する有底枠体状になし、この案内部により給電
端子２０（２１）を絶縁ガイドするようにしてもよい。FIG. 7 shows a fourth embodiment of the present invention, in which a dedicated insulating member 7 is provided between the second holding member 6 and the circuit board 2. That is, in the present embodiment, a second holding portion 71 similar to the first embodiment for holding the conducting terminals 46 (47) is provided on the insulating member 7, and this holding portion 71 Part 73 and protrusion 7
Four. In addition, the holding part 71 is not limited to the structure of the present embodiment, and like the second holding part 61 of the second embodiment,
It is formed in a flange shape having a through-hole, and the current-carrying terminal 46 (47) is held by this through-hole. Further, like the second holding portion 61 of the third embodiment, a guide with a storage wall and a tapered portion is provided. The power supply terminal 20 (21) may be insulated and guided by a bottomed frame having a portion.

【００４９】なお図７に示した絶縁部材７に通電端子４
６（４７）あるいは給電端子２０（２１）と外ヨーク４
１との間に介在する前記第１〜第３実施例と同様な絶縁
部を形成することもできる。Note that the current-carrying terminals 4 are
6 (47) or power supply terminal 20 (21) and outer yoke 4
Insulating portions similar to those of the first to third embodiments can be formed between the first and third embodiments.

【００５０】また本発明の第５実施例として図８に示す
ように、通電端子４６，４７を互いに異方向に折り曲げ
て第１の保持部材５の保持部５１にて保持すると共に、
これに応じて給電端子２０，２１の延長長さを異ならせ
ることもできる。As shown in FIG. 8 as a fifth embodiment of the present invention, the energizing terminals 46 and 47 are bent in different directions from each other and held by the holding portion 51 of the first holding member 5.
The extension lengths of the power supply terminals 20 and 21 can be changed accordingly.

【００５１】また本発明の第６実施例として図９に示す
ように、環状ボビン４５に通電端子を４６，４７を設け
て通電端子４６に励磁コイル４３ｂを電気接続すると共
に、環状ボビン４４に励磁コイル４３ａと電気接続され
た中継端子８を設け、この中継端子８と通電端子４７の
基部４７０とを半田付け等により電気接続して励磁コイ
ル４３ａ，４３ｂの導通をはかることもできる。As a sixth embodiment of the present invention, as shown in FIG. 9, energizing terminals 46 and 47 are provided on an annular bobbin 45 to electrically connect an exciting coil 43b to the energizing terminal 46 and to excite an annular bobbin 44. It is also possible to provide a relay terminal 8 electrically connected to the coil 43a, and electrically connect the relay terminal 8 and the base 470 of the energizing terminal 47 by soldering or the like to conduct the excitation coils 43a and 43b.

【００５２】図１０は、本発明の第７実施例を示すもの
で、すなわち本実施例では、第１の保持部材５の保持部
５１の外部にねじ孔を有する固定部５７を形成してモー
タ本体１と回路基板２とをねじ８により固定したもので
あり、かかる構成によれば、回路基板２からのモータ本
体１の取り外しを可能あるいは容易としながら、モータ
本体１と回路基板２との固定を確実なものとすることが
できる。なお本実施例では固定部５７を第１の保持部材
５に設けたが、図７に示した絶縁部材７に設けることも
できる。FIG. 10 shows a seventh embodiment of the present invention. That is, in this embodiment, a motor is formed by forming a fixing portion 57 having a screw hole outside the holding portion 51 of the first holding member 5. The main body 1 and the circuit board 2 are fixed by screws 8. According to such a configuration, the motor main body 1 and the circuit board 2 can be fixed while the motor main body 1 can be detached from the circuit board 2 easily or easily. Can be assured. In the present embodiment, the fixing portion 57 is provided on the first holding member 5, but may be provided on the insulating member 7 shown in FIG.

【００５３】図１１は、本発明の第８実施例を示すもの
で、すなわち本実施例では、第２の保持部材に回路基板
２に貫通係合してモータ本体１を回路基板２に固定する
弾性フック６ａを設けており、かかる構成によれば、回
路基板２からのモータ本体１の取り外しを可能あるいは
容易としながら、モータ本体１と回路基板２との固定を
ワンタッチで行うことができ、組み付け作業性を高める
ことができる。FIG. 11 shows an eighth embodiment of the present invention. That is, in this embodiment, the motor main body 1 is fixed to the circuit board 2 by penetratingly engaging the second holding member with the circuit board 2. The elastic hook 6a is provided, and according to this configuration, the motor main body 1 and the circuit board 2 can be fixed with one touch while the motor main body 1 can be detached from the circuit board 2 with ease or easily. Workability can be improved.

【００５４】また本発明の第９実施例として図示しない
が、モータ本体１と回路基板２とをかしめにより固定す
ることもでき、この場合、外ヨーク４１もしくは保持部
材５にかしめ部を形成すればよい。Although not shown as a ninth embodiment of the present invention, the motor body 1 and the circuit board 2 can be fixed by caulking. In this case, if a caulking portion is formed on the outer yoke 41 or the holding member 5, Good.

【００５５】[0055]

【発明の効果】以上詳述したように、本発明は、回転軸
を備えた永久磁石からなるロータと、環状ボビンに巻か
れた励磁コイルと環状ヨークとで前記ロータの回転方向
周囲を囲む環状積層体を構成し前記励磁コイルの通電制
御により前記ロータを回転駆動するステータと、このス
テータを挟むように前記ロータの軸方向に沿って互いに
対向配置され前記ロータを前記ステータ内に保持する一
対の保持部材とを有し、前記環状ボビンが前記励磁コイ
ルに通電する通電端子を保持してなるモータ本体と、前
記ロータの軸方向に位置して前記モータ本体を搭載する
と共に前記通電端子に電気接続される給電端子を有する
回路基板とを備え、前記給電端子と前記通電端子の双方
が前記ロータの軸方向に沿って伸びると共に前記通電端
子が前記給電端子に対して着脱自在に形成されているこ
とにより、回路基板からのモータ本体の取り外しが可能
あるいは容易となり、経済性，作業性を高め得るステッ
ピングモータを提供できる。As described above in detail, the present invention relates to a rotor comprising a permanent magnet having a rotating shaft, an exciting coil wound around an annular bobbin, and an annular yoke surrounding the rotor in the rotational direction. A stator that constitutes a laminated body and rotationally drives the rotor by energizing control of the excitation coil, and a pair of stators that are arranged to face each other along the axial direction of the rotor so as to sandwich the stator and hold the rotor in the stator; A motor body having a holding member, wherein the annular bobbin holds an energizing terminal for energizing the excitation coil; and a motor body mounted in the axial direction of the rotor and electrically connected to the energizing terminal. A circuit board having a power supply terminal, wherein both the power supply terminal and the power supply terminal extend along the axial direction of the rotor, and the power supply terminal is connected to the power supply terminal. By being detachably formed for removal of the motor body from the circuit board becomes possible or easier, it is possible to provide a stepping motor which can enhance economical efficiency, workability.

【００５６】また前記通電端子もしくは前記給電端子が
前記給電端子もしくは前記通電端子を挿入する挿入部を
有し、この挿入部は少なくとも前記給電端子側もしくは
前記通電端子側に開口する筒状に形成され、その内部に
前記給電端子もしくは前記通電端子と弾発接触する接触
部を有することにより、通電端子と給電端子の接続状態
が良好に維持され、接続信頼性を高めることができる。The power supply terminal or the power supply terminal has an insertion portion into which the power supply terminal or the power supply terminal is inserted, and the insertion portion is formed in a cylindrical shape that opens at least on the power supply terminal side or the power supply terminal side. By providing a contact portion that resiliently contacts the power supply terminal or the power supply terminal therein, a good connection between the power supply terminal and the power supply terminal is maintained, and the connection reliability can be improved.

【００５７】また前記保持部材のうち少なくとも一方側
に前記通電端子を絶縁保持する保持部を設けたことによ
り、通電端子あるいは給電端子の変形や位置バラツキが
抑制され、通電端子と給電端子との接続時並びに取り外
し時の作業性を高めることができる。Further, by providing a holding portion for insulatingly holding the current-carrying terminal on at least one side of the holding member, deformation or positional variation of the current-carrying terminal or the power supply terminal is suppressed, and connection between the current-carrying terminal and the power supply terminal is prevented. Workability at the time and at the time of removal can be improved.

【００５８】また前記回路基板側に配置される前記保持
部材と前記回路基板との間に絶縁部材を設け、この絶縁
部材に前記通電端子を保持する保持部を設けたことによ
り、通電端子と給電端子との接続時並びに取り外し時の
作業性を高めることができる。Further, an insulating member is provided between the holding member disposed on the circuit board side and the circuit board, and a holding portion for holding the conductive terminal is provided on the insulating member. The workability at the time of connection with the terminal and at the time of removal can be improved.

【００５９】また前記回路基板側に配置される前記保持
部材に前記給電端子を前記通電端子に絶縁ガイドする案
内部を形成したことにより、通電端子と給電端子との接
続作業性を高めることができる。Further, since the holding member disposed on the circuit board side is provided with a guide portion for insulatingly guiding the power supply terminal to the power supply terminal, workability of connection between the power supply terminal and the power supply terminal can be improved. .

【００６０】また前記回路基板側に配置される前記保持
部材と前記回路基板との間に絶縁部材を設け、この絶縁
部材に前記給電端子を前記通電端子にガイドする案内部
を形成したことにより、通電端子と給電端子との接続作
業性を高めることができる。Further, an insulating member is provided between the holding member disposed on the circuit board side and the circuit board, and a guide portion for guiding the power supply terminal to the power supply terminal is formed on the insulating member. The workability of connection between the power supply terminal and the power supply terminal can be improved.

【００６１】また前記保持部材のうち少なくとも一方側
に前記通電端子あるいは前記給電部材と前記ヨークとの
間に介在する絶縁部を形成したことにより、通電端子と
ヨークとの間の短絡を防止することができる。Further, by forming an insulating portion interposed between the power supply terminal or the power supply member and the yoke on at least one side of the holding member, a short circuit between the power supply terminal and the yoke is prevented. Can be.

【００６２】また前記回路基板側に配置される前記保持
部材と前記回路基板との間に絶縁部材を設け、この絶縁
部材に前記通電端子あるいは前記給電端子と前記ヨーク
との間に介在する絶縁部を形成したことにより、通電端
子とヨークとの間の短絡を防止することができる。Further, an insulating member is provided between the holding member disposed on the circuit board side and the circuit board, and an insulating portion interposed between the current-carrying terminal or the power-supplying terminal and the yoke is provided on the insulating member. Is formed, it is possible to prevent a short circuit between the current-carrying terminal and the yoke.

【００６３】また前記モータ本体が前記回路基板にネジ
止め固定されることにより、モータ本体と回路基板との
固定を確実なものとすることができる。Further, since the motor main body is fixedly screwed to the circuit board, the motor main body and the circuit board can be securely fixed.

【００６４】また前記回路基板側に位置する前記保持部
材もしくは前記絶縁部材に前記回路基板に貫通係合して
前記モータ本体を前記回路基板に固定する弾性フックを
有することにより、モータ本体と回路基板との固定をワ
ンタッチで行うことができ、組み付け作業性を高めるこ
とができる。The holding member or the insulating member located on the circuit board side has an elastic hook for penetratingly engaging the circuit board and fixing the motor body to the circuit board. Can be fixed with a single touch, and assembling workability can be improved.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の第１実施例に係わるステッピングモー
タの斜視図。FIG. 1 is a perspective view of a stepping motor according to a first embodiment of the present invention.

【図２】図１のステッピングモータの分解斜視図。FIG. 2 is an exploded perspective view of the stepping motor of FIG.

【図３】図２に示したステータの分解斜視図。FIG. 3 is an exploded perspective view of the stator shown in FIG. 2;

【図４】図１のＸ−Ｘ線に沿った断面図。FIG. 4 is a sectional view taken along line XX of FIG. 1;

【図５】本発明の第２実施例に係わるステッピングモー
タの要部断面図。FIG. 5 is a sectional view of a main part of a stepping motor according to a second embodiment of the present invention.

【図６】本発明の第３実施例に係わるステッピングモー
タの要部断面図。FIG. 6 is a sectional view of a main part of a stepping motor according to a third embodiment of the present invention.

【図７】本発明の第４実施例に係わるステッピングモー
タの分解斜視図。FIG. 7 is an exploded perspective view of a stepping motor according to a fourth embodiment of the present invention.

【図８】本発明の第５実施例に係わるステッピングモー
タの分解正面図。FIG. 8 is an exploded front view of a stepping motor according to a fifth embodiment of the present invention.

【図９】本発明の第６実施例に係わるステッピングモー
タの要部正面図。FIG. 9 is a front view of a main part of a stepping motor according to a sixth embodiment of the present invention.

【図１０】本発明の第７実施例に係わるステッピングモ
ータの要部を断面で示した正面図。FIG. 10 is an exemplary front view showing a cross section of a main part of a stepping motor according to a seventh embodiment of the present invention;

【図１１】本発明の第７実施例に係わるステッピングモ
ータの要部を断面で示した正面図。FIG. 11 is a front view showing a cross section of a main part of a stepping motor according to a seventh embodiment of the present invention.

【符号の説明】[Explanation of symbols]

１ モータ本体 ２ 回路基板 ３ ロータ ４ ステータ ５，６ 第１，第２の保持部材（保持部材） ６ａ 弾性フック ７ 絶縁部材 ８ ねじ ２０，２１ 給電端子 ２２ 回路パターン ２３，２４，４６１，４７１ 挿入部 ２５，２６ ４６２，４７２ 接触部 ３１ 回転軸 ４１，４２ 外，内ヨーク（環状ヨーク） ４３ａ，４３ｂ 励磁コイル ４４，４５ 環状ボビン ４６，４７ 通電端子 ５０，６０ 軸受部 ５１，６１，７１ 第１，第２の保持部（保持部） ５２ 収納部 ５３ 収納壁部 ５４ 受部 ５５，６６ 絶縁部 ５６ スリット ５７ 固定部 ６２，７２ 凹部 ６３，７３ 突出部 ６４，７４ 突部 ６５ 貫通孔 ６７ 収納壁部 ６８ テーパ部 ６９ 案内部 ４６０，４７０ 基部 ４６３，４７３ 接続部 DESCRIPTION OF SYMBOLS 1 Motor main body 2 Circuit board 3 Rotor 4 Stator 5, 6 First and second holding member (holding member) 6a Elastic hook 7 Insulating member 8 Screw 20, 21 Power supply terminal 22 Circuit pattern 23, 24, 461, 471 Insertion section 25, 26 462, 472 Contact part 31 Rotation shaft 41, 42 Outer, inner yoke (annular yoke) 43a, 43b Exciting coil 44, 45 Annular bobbin 46, 47 Current-carrying terminal 50, 60 Bearing part 51, 61, 71 First, 2nd holding part (holding part) 52 storage part 53 storage wall part 54 receiving part 55, 66 insulating part 56 slit 57 fixing part 62, 72 concave part 63, 73 protruding part 64, 74 protruding part 65 through hole 67 storage wall part 68 Taper section 69 Guide section 460,470 Base section 463,473 Connection section

Claims (10)

【特許請求の範囲】[Claims] 【請求項１】 回転軸を備えた永久磁石からなるロータ
と、環状ボビンに巻かれた励磁コイルと環状ヨークとで
前記ロータの回転方向周囲を囲む環状積層体を構成し前
記励磁コイルの通電制御により前記ロータを回転駆動す
るステータと、このステータを挟むように前記ロータの
軸方向に沿って互いに対向配置され前記ロータを前記ス
テータ内に保持する一対の保持部材とを有し、前記環状
ボビンが前記励磁コイルに通電する通電端子を保持して
なるモータ本体と、前記ロータの軸方向に位置して前記
モータ本体を搭載すると共に前記通電端子に電気接続さ
れる給電端子を有する回路基板とを備え、前記給電端子
と前記通電端子の双方が前記ロータの軸方向に沿って伸
びると共に前記通電端子が前記給電端子に対して着脱自
在に形成されていることを特徴とするステッピングモー
タ。1. A rotor comprising a permanent magnet having a rotating shaft, an exciting coil wound around an annular bobbin, and an annular yoke constitute an annular laminated body surrounding a periphery of the rotor in a rotational direction, and control of energization of the exciting coil. And a pair of holding members that are arranged to face each other along the axial direction of the rotor so as to sandwich the stator and hold the rotor in the stator. A motor body holding an energizing terminal for energizing the excitation coil, and a circuit board having a power supply terminal mounted in the axial direction of the rotor and having the motor main body mounted thereon and electrically connected to the energizing terminal. The power supply terminal and the power supply terminal both extend in the axial direction of the rotor, and the power supply terminal is formed detachably with respect to the power supply terminal. A stepping motor characterized in that: 【請求項２】 前記通電端子もしくは前記給電端子が前
記給電端子もしくは前記通電端子を挿入する挿入部を有
し、この挿入部は少なくとも前記給電端子側もしくは前
記通電端子側に開口する筒状に形成され、その内部に前
記給電端子もしくは前記通電端子と弾発接触する接触部
を有することを特徴とする請求項１記載のステッピング
モータ。2. The power supply terminal or the power supply terminal has an insertion portion into which the power supply terminal or the power supply terminal is inserted, and the insertion portion is formed in a cylindrical shape that opens at least on the power supply terminal side or the power supply terminal side. 2. The stepping motor according to claim 1, further comprising a contact portion which resiliently contacts the power supply terminal or the power supply terminal. 【請求項３】 前記保持部材のうち少なくとも一方側に
前記通電端子あるいは前記給電端子を絶縁保持する保持
部を設けたことを特徴とする請求項１もしくは請求項２
記載のステッピングモータ。3. The holding member provided on at least one side of the holding member for holding the power supply terminal or the power supply terminal in an insulated manner.
The stepping motor as described. 【請求項４】 前記回路基板側に配置される前記保持部
材と前記回路基板との間に絶縁部材を設け、この絶縁部
材に前記通電端子あるいは前記給電端子を保持する保持
部を設けたことを特徴とする請求項１もしくは請求項２
記載のステッピングモータ。4. An insulating member is provided between the holding member disposed on the circuit board side and the circuit board, and a holding portion for holding the power supply terminal or the power supply terminal is provided on the insulating member. Claim 1 or Claim 2
The stepping motor as described. 【請求項５】 前記回路基板側に配置される前記保持部
材に前記給電端子を前記通電端子に絶縁ガイドする案内
部を形成したことを特徴とする請求項１から請求項３記
載のステッピングモータ。5. The stepping motor according to claim 1, wherein a guide portion for insulatingly guiding the power supply terminal to the power supply terminal is formed on the holding member disposed on the circuit board side. 【請求項６】 前記回路基板側に配置される前記保持部
材と前記回路基板との間に絶縁部材を設け、この絶縁部
材に前記給電端子を前記通電端子にガイドする案内部を
形成したことを特徴とする請求項１から請求項４記載の
ステッピングモータ。6. An insulating member is provided between the holding member disposed on the circuit board side and the circuit board, and a guide portion for guiding the power supply terminal to the power supply terminal is formed on the insulating member. 5. The stepping motor according to claim 1, wherein the stepping motor is a motor. 【請求項７】 前記保持部材のうち少なくとも一方側に
前記通電端子あるいは前記給電端子と前記ヨークとの間
に介在する絶縁部を形成したことを特徴とする請求項１
から請求項３及び請求項５記載のステッピングモータ。7. An insulating part interposed between the power supply terminal or the power supply terminal and the yoke is formed on at least one side of the holding member.
6. The stepping motor according to claim 3 and claim 5. 【請求項８】 前記回路基板側に配置される前記保持部
材と前記回路基板との間に絶縁部材を設け、この絶縁部
材に前記通電端子あるいは前記給電端子と前記ヨークと
の間に介在する絶縁部を形成したことを特徴とする請求
項１から請求項４及び請求項６記載のステッピングモー
タ。8. An insulating member is provided between the holding member disposed on the circuit board side and the circuit board, and an insulating member interposed between the current-carrying terminal or the power-supplying terminal and the yoke is provided on the insulating member. 7. The stepping motor according to claim 1, wherein a step is formed. 【請求項９】 前記モータ本体が前記回路基板にネジ止
め固定されることを特徴とする請求項１から請求項８記
載のステッピングモータ。9. The stepping motor according to claim 1, wherein the motor main body is fixed to the circuit board with screws. 【請求項１０】 前記回路基板側に位置する前記保持部
材もしくは前記絶縁部材に前記回路基板に貫通係合して
前記モータ本体を前記回路基板に固定する弾性フックを
有することを特徴とする請求項１から請求項８記載のス
テッピングモータ。10. The circuit according to claim 1, wherein said holding member or said insulating member located on said circuit board side has an elastic hook which penetrates into said circuit board and fixes said motor body to said circuit board. 9. The stepping motor according to claim 1.