JPS5939831Y2 - small servo motor - Google Patents
small servo motorInfo
- Publication number
- JPS5939831Y2 JPS5939831Y2 JP1550679U JP1550679U JPS5939831Y2 JP S5939831 Y2 JPS5939831 Y2 JP S5939831Y2 JP 1550679 U JP1550679 U JP 1550679U JP 1550679 U JP1550679 U JP 1550679U JP S5939831 Y2 JPS5939831 Y2 JP S5939831Y2
- Authority
- JP
- Japan
- Prior art keywords
- magnet
- commutator
- absorbing element
- servo motor
- noise absorbing
- 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.)
- Expired
Links
Landscapes
- Motor Or Generator Current Collectors (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Dc Machiner (AREA)
Description
【考案の詳細な説明】
本考案はロータの回転周波数を検出する発電機構を内蔵
した小型サーボモータに関する。[Detailed Description of the Invention] The present invention relates to a small servo motor with a built-in power generating mechanism that detects the rotational frequency of a rotor.
この種従来装置は、ロータコアに巻装されるロータコイ
ルの一方のコイルエンド端面側のロータ軸に整流子を取
付けると共にロータコアを挾んで他方のコイルエンド端
面側のロータ軸に発電機用磁石体を取付け、且該磁石体
と半径方向で対抗する発電機用コイルを磁石体の外周に
設けているので、小型サーボモータのモータケースの軸
方向長が大きい欠点を有すると共に前記発電機用コイル
を別途モータケースに取付けねばならず、構造が複雑に
なる欠点がある〇
また小型整流子モータにおいては、整流子の各セグメン
トに給電刷子が接離することにより生ずる電気ノイズを
吸収するため、ノイズ吸収素子部材を用いるが該部材を
整流子とは別に別途ロータ軸に取付けねばならない。In this type of conventional device, a commutator is attached to the rotor shaft on the end face side of one coil end of the rotor coil wound around the rotor core, and a generator magnet is attached to the rotor shaft on the end face side of the other coil end, sandwiching the rotor core. Since the generator coil that opposes the magnet body in the radial direction is installed on the outer periphery of the magnet body, it has the drawback that the axial length of the motor case of the small servo motor is large, and the generator coil must be installed separately. It has to be installed in the motor case, which has the disadvantage of complicating the structure.In addition, in small commutator motors, a noise absorbing element is used to absorb the electrical noise generated when the feed brush comes into contact with and separates from each segment of the commutator. Although a member is used, the member must be attached to the rotor shaft separately from the commutator.
本考案はかかる点に鑑み考案されたものにして、本考案
の一実施例を図面に基いて説明する。The present invention has been devised in view of these points, and one embodiment of the present invention will be described based on the drawings.
第１図は小型モータの断面図を示し、モータケース１は
有底筒状筐体２とその開口を施蓋するブラケット３とか
らなる。FIG. 1 shows a sectional view of a small motor, and a motor case 1 consists of a bottomed cylindrical housing 2 and a bracket 3 that covers the opening of the housing.
筐体２の内周面には環状永久磁石４が取付けられ、また
筐体２の底面中央には軸受５が固着されている。An annular permanent magnet 4 is attached to the inner peripheral surface of the casing 2, and a bearing 5 is fixed to the center of the bottom surface of the casing 2.
該軸受とブラケット３に固着された軸受６とで支持され
るロータ軸７にはロータコイル８を巻装したロー・タコ
ア９が樹脂スリーブ１０を介して取付けられると共にブ
ラケット側にはロータコイルエンドに接続されるセグメ
ント１１を備えた整流子１２が取付けられる。A rotor core 9 having a rotor coil 8 wound thereon is attached to the rotor shaft 7 supported by the bearing and a bearing 6 fixed to the bracket 3 via a resin sleeve 10, and a rotor coil end is attached to the bracket side. A commutator 12 with connected segments 11 is installed.
ブラケット３の内面に設けた樹脂基板１３には整流子セ
グメント１１に摺接する刷子１４が設けられている。A resin substrate 13 provided on the inner surface of the bracket 3 is provided with brushes 14 that come into sliding contact with the commutator segments 11.
また本考案においては、発電機用磁石体１５がロータコ
イル８の端面と整流子１２の端面との間に配置され、磁
石体１５のリング状マグネット１６に軸方向に対向する
発電機用コイル１７は棒状コア１８に巻回されて樹脂基
板１３に取付けられている。Further, in the present invention, the generator magnet 15 is arranged between the end face of the rotor coil 8 and the end face of the commutator 12, and the generator coil 17 is arranged axially opposite the ring-shaped magnet 16 of the magnet 15. is wound around a rod-shaped core 18 and attached to the resin substrate 13.
前記磁石体１５は第２図に拡大して示しているように、
リング状マグネット１６と樹脂製中央ボス１９とで構成
され、磁石体１５の整流子側側面に整流子１２のセグメ
ント１１・・・間に接続されるノイズ吸収素子部材２０
が設けられている。As shown enlarged in FIG. 2, the magnet body 15 is
A noise absorbing element member 20 is composed of a ring-shaped magnet 16 and a resin central boss 19, and is connected to the commutator-side side surface of the magnet body 15 and between the segments 11 of the commutator 12.
is provided.
該ノイズ吸収素子部材２０としては、バリスタ、抵抗あ
るいはコンデンサ等があり、実施例ではワッシャ型バリ
スタを用いている。The noise absorbing element member 20 includes a varistor, a resistor, a capacitor, etc., and a washer type varistor is used in the embodiment.
また第１図及び第２図に示す実施例においてはノイズ吸
収素子部材２０としてのバリスタを磁石体１５の中央ボ
ス１９の側面にインサート成型しているが、接着剤によ
り前記バリスタを中央ボス１９の側面に取付けてもよい
。Further, in the embodiment shown in FIGS. 1 and 2, the varistor as the noise absorbing element member 20 is insert-molded on the side surface of the central boss 19 of the magnet body 15. It can also be attached to the side.
前記ノイズ吸収素子部材２０はその表面に整流子セグメ
ント数に応じた端子笛部２１を有し、該端子笛部は整流
子セグメント１１のライザ一部２２に接続される。The noise absorbing element member 20 has terminal whistle portions 21 corresponding to the number of commutator segments on its surface, and the terminal whistle portions are connected to riser portions 22 of the commutator segments 11.
つぎに第３図は他の実施例を示し、磁石体１５はリング
状マグネット１６と樹脂製中央ボス１９′とからなるが
、該中央ボス１９′は整流子１２の樹脂製支持体２３と
一体成型されており、ノイズ吸収素子部材２０としての
ワッシャ型バリスタはマグネット１６の整流子側側面に
接着剤により固着される。Next, FIG. 3 shows another embodiment, in which the magnet body 15 consists of a ring-shaped magnet 16 and a resin central boss 19', and the central boss 19' is integral with the resin support 23 of the commutator 12. The washer-type varistor as the noise absorbing element member 20 is fixed to the side surface of the magnet 16 on the commutator side with an adhesive.
以上の如く本考案の構成によれば、発電機用磁石体を、
ロータコアに巻装されたロータコイルの端面と整流子端
面との間に配置すると共に前記磁石体の整流子側側面に
前記整流子のセグメント間に接続されるノイズ吸収素子
部材を設けたから、前記磁石体は整流子に摺接する刷子
を取付けたブラケット内面に軸方向に対向せしめられ、
該ブラケット内面に発電機用コイルを設けることができ
る。As described above, according to the configuration of the present invention, the generator magnet body can be
Since the noise absorbing element member is disposed between the end face of the rotor coil wound around the rotor core and the commutator end face, and is connected between the segments of the commutator on the commutator side face of the magnet body, the magnet The body is axially opposed to the inner surface of the bracket, which is equipped with a brush that comes into sliding contact with the commutator.
A generator coil can be provided on the inner surface of the bracket.
したがってモータ全体の軸方向長を小さくすることがで
きると共に発電機用コイルの取付けを簡単化することも
できる。Therefore, the axial length of the entire motor can be reduced, and the installation of the generator coil can also be simplified.
また前記ノイズ吸収素子部材は前記磁石体に取付けられ
るので、特別な取付は部材を要しない。Further, since the noise absorbing element member is attached to the magnet body, no special attachment member is required.
さらに前記ノイズ吸収素子部材を、前記磁石体をリング
状マグネットとともに構成する樹脂製中央ボスに取付け
る場合には、前記リング状マグネット及び発電機用コイ
ルからなる発電機構を損うことなく前記ノイズ吸収素子
部材を取付けることができ、また前記中央ボスを前記整
流子の樹脂製支持体と一体に形成し、前記ノイズ吸収素
子部材を前記リング状マグネットの側面に取付ける場合
には、前記磁石体及び整流子を一体化できるのでその取
扱い及び製造が簡単になる等実用的効果大なるものであ
る。Furthermore, when the noise absorbing element member is attached to the resin central boss that constitutes the magnet body together with the ring-shaped magnet, the noise absorbing element member can be attached to the resin central boss that constitutes the magnet body together with the ring-shaped magnet, without damaging the power generation mechanism consisting of the ring-shaped magnet and the generator coil. When the center boss is formed integrally with the resin support of the commutator and the noise absorbing element member is attached to the side surface of the ring-shaped magnet, the magnet body and the commutator can be attached. Since it can be integrated, it has great practical effects such as easier handling and manufacturing.
図面は本考案による小型サーボモータを示し、第１図は
その一実施例を示すモータの断面図、第２図は第１図の
磁石体及び整流子の拡大断面図、第３図は他の実施例の
磁石体及び整流子の拡大断面図である。
１６・・・・・・発電機用磁石体、９・・・・・・ロー
タコア、８・・・・・・ロータコイル、１２・・・・・
・整流子、１１・・・・・・セグメント、２０・・・・
・ノイズ吸収素子部材、１６・・・・・・リング状マグ
ネット、１９，１９’・・・・・・中央ボス、２３・・
・・・・支持体。The drawings show a small servo motor according to the present invention, FIG. 1 is a sectional view of the motor showing one embodiment, FIG. 2 is an enlarged sectional view of the magnet body and commutator of FIG. It is an enlarged sectional view of a magnet body and a commutator of an example. 16... Generator magnet, 9... Rotor core, 8... Rotor coil, 12...
・Commutator, 11...Segment, 20...
・Noise absorbing element member, 16...Ring magnet, 19, 19'...Central boss, 23...
...Support.
Claims (3)
タコイルの端面と整流子端面との間に配置すると共に前
記磁石体の前記整流子側側面に前記整流子のセグメント
間に接続されるノイズ吸収素子部材を設けてなる小型サ
ーボモータ。(1) A generator magnet is arranged between the end face of the rotor coil wound around the rotor core and the commutator end face, and the generator magnet is connected between the segments of the commutator on the commutator side face of the magnet. A small servo motor equipped with a noise absorbing element member.
スとで構成され、前記中央ボスの側面に前記ノイズ吸収
素子部材を設けてなる実用新案登録請求の範囲第１項記
載の小型サーボモータ。(2) The small servo motor according to claim 1, wherein the magnet body is composed of a ring-shaped magnet and a resin central boss, and the noise absorbing element member is provided on a side surface of the central boss.
ボスとで構成され、前記ノイズ吸収素子部材は前記マグ
ネットの側面に添着され、且前記中央ボスは前記整流子
の樹脂製支持体と一体に形成される実用新案登録請求の
範囲第１項記載の小型サーボモータ。(3) The magnet body is composed of a killing magnet and a resin central boss, the noise absorbing element member is attached to a side surface of the magnet, and the central boss is integrally formed with the resin support of the commutator. A small servo motor according to claim 1 of the registered utility model claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1550679U JPS5939831Y2 (en) | 1979-02-08 | 1979-02-08 | small servo motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1550679U JPS5939831Y2 (en) | 1979-02-08 | 1979-02-08 | small servo motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55115287U JPS55115287U (en) | 1980-08-14 |
| JPS5939831Y2 true JPS5939831Y2 (en) | 1984-11-08 |
Family
ID=28837324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1550679U Expired JPS5939831Y2 (en) | 1979-02-08 | 1979-02-08 | small servo motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5939831Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH069579Y2 (en) * | 1989-09-11 | 1994-03-09 | マブチモーター株式会社 | Small motor with frequency generator |
-
1979
- 1979-02-08 JP JP1550679U patent/JPS5939831Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55115287U (en) | 1980-08-14 |
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