JPS60176453A - Dc motor - Google Patents
Dc motorInfo
- Publication number
- JPS60176453A JPS60176453A JP3051284A JP3051284A JPS60176453A JP S60176453 A JPS60176453 A JP S60176453A JP 3051284 A JP3051284 A JP 3051284A JP 3051284 A JP3051284 A JP 3051284A JP S60176453 A JPS60176453 A JP S60176453A
- Authority
- JP
- Japan
- Prior art keywords
- recess
- brush holder
- bracket
- rubber bushing
- groove
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/14—Means for supporting or protecting brushes or brush holders
- H02K5/143—Means for supporting or protecting brushes or brush holders for cooperation with commutators
- H02K5/148—Slidably supported brushes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Current Collectors (AREA)
- Dc Machiner (AREA)
- Motor Or Generator Frames (AREA)
Abstract
Description
【発明の詳細な説明】 産業上の利用分野 本発明は整流子を有する直流電動機に関する。[Detailed description of the invention] Industrial applications The present invention relates to a DC motor with a commutator.
従来例の構成とその問題点
一般にこの種の直流電動機は第１図および第２図に示す
ようにブラケット１にブラシホルダー２を取付け、この
ブラシホルダー２にブラシホルダー金具３をインサート
し、前記ブラシホルダー金具３に保持されたカーボン等
のブラシ４を整流子６に接触させている。また、前記ブ
ラシホルダー金具３にはラグ端子６がスポット溶接きれ
、このラグ端子６よシ導出したリード線７をゴムブッシ
ング９を通じて外部に導出させている。なお、図中の８
はケース、１０は回転子、１１は固定子である。Conventional Structure and Problems Generally, in this type of DC motor, as shown in FIGS. 1 and 2, a brush holder 2 is attached to a bracket 1, a brush holder fitting 3 is inserted into this brush holder 2, and the brush A brush 4 made of carbon or the like held by a holder metal fitting 3 is brought into contact with a commutator 6. Further, a lug terminal 6 is spot-welded to the brush holder metal fitting 3, and a lead wire 7 led out from the lug terminal 6 is led out through a rubber bushing 9. In addition, 8 in the figure
10 is a case, 10 is a rotor, and 11 is a stator.
ところで上記構成によれば、直流電動機の運転時にブラ
シ４と整流子６との摩擦によって生じる熱がブラケット
１を介してゴムブッシング９に伝わり、前記ゴムブッシ
ング９とリード線７との間にすきまが生しる。このため
、リード線７を強く引張るとリード線７を接続したラグ
端子６に力が力１わり、ブラシホルダー金具３等が破損
するおそれがある。また、リード線７を押し込むと、た
るんだリード線７が回転子１０に巻きつくきいう問題が
ある。さらにブラシ４の摩耗粉がゴムブッシング９とリ
ード線７とのすきまより外部にもれ、周囲を汚すという
問題があった。By the way, according to the above configuration, heat generated by friction between the brush 4 and the commutator 6 during operation of the DC motor is transmitted to the rubber bushing 9 via the bracket 1, and a gap is created between the rubber bushing 9 and the lead wire 7. Live. Therefore, if the lead wire 7 is pulled strongly, a force of 1 is applied to the lug terminal 6 to which the lead wire 7 is connected, and there is a risk that the brush holder fitting 3 and the like may be damaged. Further, when the lead wire 7 is pushed in, there is a problem in that the slack lead wire 7 winds tightly around the rotor 10. Furthermore, there is a problem in that abrasion powder from the brush 4 leaks outside through the gap between the rubber bushing 9 and the lead wire 7, contaminating the surrounding area.
発明の目的
本発明は前記従来の問題に留意し、ブラシよシ導出する
リード線を確実に固定し、また、ブラシの摩耗粉のもれ
出ない直流電動機を提供することを目的とするものであ
る。OBJECTS OF THE INVENTION The present invention has been made in consideration of the above-mentioned conventional problems, and an object of the present invention is to provide a DC motor in which lead wires led out from brushes are securely fixed, and in which wear powder from the brushes does not leak out. be.
発明の構成
前記目的を達成するため、本発明はブラケットのゴムブ
ッシング部を内側より塞ぐように前記ブラケットの筒部
の内側に筒状のブラシ保持体を嵌め合わせ、このブラシ
保持体の端面に凹溝を形成するとともに凹溝の一部に外
方に開通し、かつ、前記ゴムブッシング部に対応する凹
欠を設け、リード線を凹溝に案内し、かつ、凹欠よりゴ
ムブッシングを介して導出する直流電動機の構成とした
ものであり、リード線の固定が確実で、かつ、リード線
の引出部よ如ブラシの摩耗粉がもれないものである。Structure of the Invention In order to achieve the above object, the present invention includes a cylindrical brush holder fitted inside the cylindrical part of the bracket so as to close the rubber bushing part of the bracket from the inside, and a recess formed in the end surface of the brush holder. A groove is formed, and a recess is provided in a part of the recess that opens outward and corresponds to the rubber bushing portion, and the lead wire is guided into the recess and is guided through the rubber bushing from the recess. This is a direct current motor configured to lead out the lead wires, and the lead wires are securely fixed, and wear powder of the brush does not leak from the lead wire lead-out portion.
実施例の説明
以下本発明の一実施例を第３図および第４図にもとつき
説明する。DESCRIPTION OF THE EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 3 and 4.
図において、１２は有底円筒状のブラケットであり、そ
の開口縁１３は本体のケース（図示せず）に嵌まり合う
ように段部１４を有しており、前記開口縁１３には一対
のブラシ部嵌合用の凹欠部１６と一つのブッシング嵌合
用の凹欠部１６を形成し、前記ブッシング嵌合用の凹欠
部１６に２つ折りしたゴムブッシング１８を嵌め合わせ
ている。前記ブラケット１２の筒部の内側には前記ブラ
ケット１２の内径と等しい外径をもつ有底円筒状のブラ
シ保持体１９を嵌め合わせている。このブラシ保持体１
９は電気絶縁性の合成樹脂材よりなシ、前記嵌め合わせ
た状態においてゴムブッシング１８を内側より塞閉して
いる。また、ブラシ保持体１９は径方向を軸とし、かつ
、外側に突出した一対のボス２０を有し、このボス２ｏ
を貫通するように設けられたブラシホルダー金具２１を
有している。In the figure, reference numeral 12 denotes a bottomed cylindrical bracket, the opening edge 13 of which has a stepped portion 14 so as to fit into the case (not shown) of the main body, and the opening edge 13 has a pair of cylindrical brackets. A concave notch 16 for fitting a brush part and one concave notch 16 for fitting a bushing are formed, and a rubber bushing 18 folded in two is fitted into the concave notch 16 for fitting a bushing. A bottomed cylindrical brush holder 19 having an outer diameter equal to the inner diameter of the bracket 12 is fitted inside the cylindrical portion of the bracket 12 . This brush holder 1
Reference numeral 9 is made of an electrically insulating synthetic resin material and closes the rubber bushing 18 from the inside in the fitted state. Further, the brush holder 19 has a pair of bosses 20 whose axes extend in the radial direction and which protrude outward.
It has a brush holder metal fitting 21 provided so as to penetrate through the brush holder metal fitting 21.
なお、前記ブラシホルダー金具２１には図示していない
がブラシが挿入される。まだブラシ保持体１９の開口縁
１７の端面には少なくとも一対のブラシホルダー金具２
１の上部位置間にわたる長い凹溝２２を形成するととも
に、前記凹溝２２のブラシホルダー金具２１に対応する
部分に内方に開通する凹欠２３を設け、また、凹溝２２
における前記２つの凹欠２３間の中間位置に外方に開通
する凹欠２４を形成している。前記ブラシ保持体１９内
におけるブラシホルダー金具２１にはリード線２６を半
１」］伺等によって接続してあり、このリード線は凹欠
２３を介して凹溝２２内に案内され、かつ、凹欠２４よ
り外方に導出される。ブラシ保持体１９がブラケット１
２内に嵌め合わされた状態において、ボス２０けブラケ
ット１２のブラシ部嵌合用の凹欠部１６に１薗合して位
置決めされ、ブラシ保持体１９のリード線２６を引き出
す凹欠２４はブラケット１２のブッシング嵌合用の凹欠
部１６に対応する。そして前記凹欠２４より引き出され
たリード線２６はブッシング嵌合用の凹欠部１６内のゴ
ムブッシング１８を通して外部に導出される。Note that a brush (not shown) is inserted into the brush holder metal fitting 21. At least one pair of brush holder fittings 2 are still attached to the end surface of the opening edge 17 of the brush holder 19.
A long groove 22 extending between the upper positions of the groove 22 is formed, and a groove 23 opening inward is provided in a portion of the groove 22 corresponding to the brush holder metal fitting 21.
A recess 24 that opens outward is formed at an intermediate position between the two recesses 23 . A lead wire 26 is connected to the brush holder metal fitting 21 in the brush holder 19 by means of a half-way hole or the like, and this lead wire is guided into the groove 22 via the recess 23 and It is led out from the cutout 24. The brush holder 19 is the bracket 1
2, the 20-boss bracket 12 is positioned so that it is aligned with the recess 16 for fitting the brush part. It corresponds to the recessed notch 16 for fitting the bushing. The lead wire 26 drawn out from the recess 24 is guided to the outside through the rubber bushing 18 in the recess 16 for bushing fitting.
なお、回転子その他の構成は前述の第１図に示すものと
同様であるので、その構成は省略する。Note that the rotor and other configurations are the same as those shown in FIG. 1 described above, so their configuration will be omitted.
上記構成によれば、リード線２６がブラシ保持体１９０
凹溝２２内に案内されたのち、ブラケット１２のゴムブ
ッシング１８を通って導出されるため、前記リード線２
６が少なくとも２回屈折されており、リード線２６に引
張りあるいは押し込みの力を加えてもその力はブラシホ
ルダー金具２１の接続部に加わらなく、ブラシホルダー
金具部２が破損したり、あるいはリード線２６がたるん
で回転子に巻きつくようなことがない。また、ブラケッ
ト１２のゴムブッシング１８部の内側はブラシ保持体１
９の一部で塞さがれ、したがってブラシの摩耗粉が外部
に出るこ゛とがない。According to the above configuration, the lead wire 26 is attached to the brush holder 190.
After being guided into the groove 22, the lead wire 2 is led out through the rubber bushing 18 of the bracket 12.
6 is bent at least twice, and even if a pulling or pushing force is applied to the lead wire 26, the force will not be applied to the connection part of the brush holder metal fitting 21, and the brush holder metal fitting 2 may be damaged or the lead wire 26 will not become sagging and wrap around the rotor. Also, the inside of the rubber bushing 18 of the bracket 12 is the brush holder 1.
9, so that the abrasion powder of the brush cannot escape to the outside.
発明の効果
前記実施例の説明よシ明らかなように、本発明によれば
リード線の固定が確実であり、リード線に外力が加わっ
ても支障がなく、また、ブラシ摩酬粉がリード線の引出
部よりもれることがなく、その価値は大きい。Effects of the Invention As is clear from the description of the above embodiments, according to the present invention, the lead wire can be securely fixed, there is no problem even if an external force is applied to the lead wire, and the brush abrasive powder can be removed from the lead wire. It does not leak compared to the drawer part of the drawer, and its value is great.
第１図は従来の直流電動機の断面図、第２図は同直流電
動機のブラケットの平面図、第３図は本発明の〜実姉例
の直流電動機の要部分解斜視図、第４図はそのブラシ保
持体の断面図である。
１２・・・・・ブラケット、１５．１６・・・・−凹欠
部、１８・・・・ゴムブッシング、１９・・・・・ブラ
シ保持体、２１・・−・・ブラシホルダー金具、２２・
・・−凹溝、２３．２４・・・・凹欠、２５・・・−リ
ード線。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第１
図Fig. 1 is a cross-sectional view of a conventional DC motor, Fig. 2 is a plan view of a bracket of the same DC motor, Fig. 3 is an exploded perspective view of a main part of a DC motor according to a sister example of the present invention, and Fig. 4 is the same. It is a sectional view of a brush holder. 12...Bracket, 15.16...-Concave notch, 18...Rubber bushing, 19...Brush holder, 21...Brush holder metal fitting, 22...
...-concave groove, 23.24...concave notch, 25...-lead wire. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
figure
Claims (1)
を備え、前記ブラケットの開口縁に凹欠き形成するとと
もにこの凹欠にゴムブッシングをｄ、め市め、前記ブラ
ケットの筒部の内側に前記凹欠を塞ぐように筒状のブラ
シ保持体を嵌め合せ、１】ＩＩ記プラン偵′持休体はブ
ラシホルダー金具を少なくとも内方に突出するように設
けるとともに端面に凹溝を形成し、前記凹溝の一部に外
側に開通し、かつ、前記ゴムブッシングに対応する凹欠
を設け、前記ブラシホルダー金具に接続したリード線を
凹溝に案内し、かつ、ブラシ保持体の前記凹欠よシゴム
ブッシングを通して導出してなる直流電動機。A cylindrical bracket with a bottom is connected to a part of the case of the main body, a recess is formed in the opening edge of the bracket, and a rubber bushing is fitted into the recess, and the inside of the cylindrical portion of the bracket is provided. A cylindrical brush holder is fitted into the cylindrical brush holder so as to close the recess, and the holder is provided with a brush holder fitting so as to protrude at least inwardly, and a groove is formed in the end surface. , a part of the groove is provided with a groove that opens outward and corresponds to the rubber bushing, a lead wire connected to the brush holder metal fitting is guided to the groove, and the groove of the brush holder A DC motor that is drawn out through a rubber bushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3051284A JPS60176453A (en) | 1984-02-20 | 1984-02-20 | Dc motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3051284A JPS60176453A (en) | 1984-02-20 | 1984-02-20 | Dc motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60176453A true JPS60176453A (en) | 1985-09-10 |
Family
ID=12305858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3051284A Pending JPS60176453A (en) | 1984-02-20 | 1984-02-20 | Dc motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60176453A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5414318A (en) * | 1993-02-19 | 1995-05-09 | Mitsuba Electric Manufacturing Co., Ltd. | Brush device |
| US5923935A (en) * | 1995-12-29 | 1999-07-13 | Ricoh Company, Ltd. | Image forming apparatus with a folding transfer device support member |
| JP2010522532A (en) * | 2007-03-30 | 2010-07-01 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | DC machine |
| CN104868642A (en) * | 2015-05-22 | 2015-08-26 | 遵义天义利威机电有限责任公司 | Motor wire installation structure |
-
1984
- 1984-02-20 JP JP3051284A patent/JPS60176453A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5414318A (en) * | 1993-02-19 | 1995-05-09 | Mitsuba Electric Manufacturing Co., Ltd. | Brush device |
| US5923935A (en) * | 1995-12-29 | 1999-07-13 | Ricoh Company, Ltd. | Image forming apparatus with a folding transfer device support member |
| JP2010522532A (en) * | 2007-03-30 | 2010-07-01 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | DC machine |
| CN104868642A (en) * | 2015-05-22 | 2015-08-26 | 遵义天义利威机电有限责任公司 | Motor wire installation structure |
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