JPS61170257A - Brush device for motor - Google Patents
Brush device for motorInfo
- Publication number
- JPS61170257A JPS61170257A JP60010629A JP1062985A JPS61170257A JP S61170257 A JPS61170257 A JP S61170257A JP 60010629 A JP60010629 A JP 60010629A JP 1062985 A JP1062985 A JP 1062985A JP S61170257 A JPS61170257 A JP S61170257A
- Authority
- JP
- Japan
- Prior art keywords
- brush
- vibration
- motor
- commutator
- retaining plate
- 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
- H02K5/14—Means for supporting or protecting brushes or brush holders
- H02K5/143—Means for supporting or protecting brushes or brush holders for cooperation with commutators
- H02K5/145—Fixedly supported brushes or brush holders, e.g. leaf or leaf-mounted brushes
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/02—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for suppression of electromagnetic interference
- H02K11/026—Suppressors associated with brushes, brush holders or their supports
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Motor Or Generator Current Collectors (AREA)
Abstract
Description
【発明の詳細な説明】
〔技術分野〕
本発明はカーボン刷子を整流子に摺接して給電するモー
タの刷子装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a brush device for a motor that supplies power by sliding a carbon brush on a commutator.
上記のように整流子にカーボン刷子を摺接する刷子装置
においては、一般的にカーボン刷子を整流子に弾接する
ため弾性保持板を介して刷子取付台に取着しているが、
整流子の回転により弾性保持板が振動してチャタリング
が発生し、電波障害が発生したり寿命低下の原因となる
。In a brush device in which a carbon brush is slidably contacted with a commutator as described above, the carbon brush is generally attached to a brush mount via an elastic holding plate in order to make elastic contact with the commutator.
The rotation of the commutator causes the elastic holding plate to vibrate and cause chattering, which can cause radio interference and shorten the service life.
かかる問題を解消するため、従来から弾性保持板にゴム
板等の吸振部材を貼着しているが、別途にゴム板等の吸
振部材が必要で且つその取付けに手間がかかり、また吸
振部材の取付位置や取付状態により振動減衰性能が異な
ったり、使用途中で吸振部材が外れたりして確実に振動
を低減することができない問題点があった。In order to solve this problem, a vibration absorbing member such as a rubber plate has traditionally been attached to the elastic retaining plate, but this requires a separate vibration absorbing member such as a rubber plate and is time-consuming to install. There have been problems in that the vibration damping performance varies depending on the mounting position and mounting condition, and the vibration absorbing member may come off during use, making it impossible to reliably reduce vibrations.
本発明は上記問題点に鑑みて成したもので、その目的と
するところは、吸振部材なしで刷子の振動を小さくした
モータの刷子装置を提供することにある。The present invention was made in view of the above-mentioned problems, and an object thereof is to provide a motor brush device that reduces brush vibration without using a vibration absorbing member.
以下本発明の実施例を図面に基づき説明する。 Embodiments of the present invention will be described below based on the drawings.
１け有底筒状のモータケースで、底部に軸受２を取付け
るとともに、一端開口に刷子取付台３を嵌着し、前記刷
子取付台３に軸受４及び刷子装置５を取付けている。ま
だ、前記モータケーク１内にはマグネット６及びロータ
７を設けており、前記ロータ７はコイル８を巻回した鉄
心９と、円筒状の絶縁基台１０の外周に整流片１１を設
けた整流子νとを回転軸１３に固着してなり、前記回転
軸１３を前記軸受２．４間に回転自在に軸支している。The motor case is a cylindrical motor case with a bottom, and a bearing 2 is attached to the bottom, a brush mount 3 is fitted to the opening at one end, and a bearing 4 and a brush device 5 are attached to the brush mount 3. A magnet 6 and a rotor 7 are still provided in the motor cake 1, and the rotor 7 has an iron core 9 around which a coil 8 is wound, and a commutator having a rectifying piece 11 on the outer periphery of a cylindrical insulating base 10. ν is fixed to the rotating shaft 13, and the rotating shaft 13 is rotatably supported between the bearings 2 and 4.
更に、前記刷子装置５はカーボン刷子１４を弾性保持板
１５及び端子１６を介して前記刷子取付台３に取着して
構成し、前記カーボン刷子１４を整流子νに摺接させて
端子１６からロータ７へ給電するようになっている。前
記端子１６は外部電源に接続するもので、黄銅で形成し
ており、また前記弾性保持板１５はカーボン刷子１４を
整流子１２に弾接するとともに端子１６からカーボン刷
子１４への電気接続をするもので、吸音、吸振性能の高
いＭｎ −Ｃｕ合金で形成している。前記Ｍｎ −Ｃｕ
合金は、一般に５５〜８Ｑ ｗｔ％の組成領域で優れた
吸音、吸振性能を示すことが知られており、本実施例の
弾性保持板１５はこれに耐食性及び機械的性質を考慮し
て５５ｗｔ％のＭｎを含有するＭｎ −Ｃｕ合金で形成
している。また、前記カーボン刷子１４は断面略正方形
に形成するとともに、四角の夫々に先端を尖状とした突
起１７を形成しており、前記刷子保持板１５の両側を曲
成して形成した一対の法止片１８ 、１８で前記カーボ
ン刷子１４の上面の二角の突起１７を挾持するとともに
、カーボン刷子１４の下面の二角の突起１７を整流子球
に摺接している。而して、前記カーボン刷子１４は、先
端を尖状とした突起１７を整流子球に摺接することによ
り騒音を小さくし、゛まだカーボン刷子１４の形状を上
下左右対称形にすることにより、カーボン刷子１４の取
付方向性をなくして弾性保持板１５への取付けが簡単に
できるようにし、自動組立機でも組立ができるようにし
ている。Further, the brush device 5 is constructed by attaching the carbon brush 14 to the brush mount 3 via an elastic holding plate 15 and a terminal 16, and the carbon brush 14 is brought into sliding contact with the commutator ν to be connected to the terminal 16. Power is supplied to the rotor 7. The terminal 16 is connected to an external power source and is made of brass, and the elastic holding plate 15 brings the carbon brush 14 into elastic contact with the commutator 12 and also connects the terminal 16 to the carbon brush 14 electrically. It is made of a Mn-Cu alloy with high sound absorption and vibration absorption performance. The Mn-Cu
It is known that alloys generally exhibit excellent sound absorption and vibration absorption performance in the composition range of 55 to 8Q wt%, and the elastic retaining plate 15 of this embodiment has a composition of 55 wt% in consideration of corrosion resistance and mechanical properties. It is made of a Mn--Cu alloy containing Mn. Further, the carbon brush 14 is formed to have a substantially square cross section, and a protrusion 17 with a pointed tip is formed on each of the squares, and a pair of protrusions 17 are formed by bending both sides of the brush holding plate 15. The two corner projections 17 on the upper surface of the carbon brush 14 are held between the stopper pieces 18, and the two corner projections 17 on the lower surface of the carbon brush 14 are brought into sliding contact with the commutator bulb. The carbon brush 14 has a protrusion 17 with a pointed tip that slides into contact with the commutator ball to reduce noise, and by making the carbon brush 14 symmetrical in shape vertically and horizontally, The mounting direction of the brush 14 is eliminated so that the brush 14 can be easily mounted on the elastic holding plate 15, and can be assembled using an automatic assembly machine.
尚、上記実施例では弾性保持板１５と端子１６とを別部
品で形成しているが、Ｍｎ −Ｃｕ合金で一体に形成し
たものでも本発明の要旨を逸脱するものではない。In the above embodiment, the elastic retaining plate 15 and the terminal 16 are formed as separate parts, but it would not depart from the gist of the present invention if they were formed integrally from a Mn--Cu alloy.
以上の如く、本発明は刷子を保持する弾性保持板を吸音
、吸振性能の高いＭｎ −Ｃｕ合金で形成したので、刷
子の振動が弾性保持板で減衰されて小さくなり、従来の
ような吸振部材なしでも振動の小さい刷子装置が得られ
、モータの電波障害や騒音が小さく且つ寿命が畏くなる
効果を奏する。As described above, in the present invention, the elastic retaining plate that holds the brush is made of a Mn-Cu alloy with high sound-absorbing and vibration-absorbing performance, so the vibration of the brush is attenuated by the elastic retaining plate and becomes small, making it possible to reduce the vibration of the brush by using a conventional vibration-absorbing member. Even without this, a brush device with low vibration can be obtained, and the effect is that the electromagnetic interference and noise of the motor are low, and the life of the motor is shortened.
第１図は本発明実施例の刷子装置を使用したモータの断
面図、第２図は同上の要部拡大図、第３図は第１図のＡ
−Ａ断面図である。
３・・・刷子取付台、５・・・刷子装置、１４・・・カ
ーボン刷子、１５・・・弾性保持板、１７・・・突起。FIG. 1 is a sectional view of a motor using a brush device according to an embodiment of the present invention, FIG. 2 is an enlarged view of the same essential parts, and FIG. 3 is an A of FIG.
-A sectional view. 3... Brush mounting base, 5... Brush device, 14... Carbon brush, 15... Elastic holding plate, 17... Protrusion.
Claims (1)
着してなるモータの刷子装置において、前記弾性保持板
をＭｎ−Ｃｕ合金で形成したことを特徴とするモータの
刷子装置。 ２）弾性保持板は５５ｗｔ％のＭｎを含有するＭｎ−Ｃ
ｕ合金であることを特徴とする特許請求の範囲第１項記
載のモータの刷子装置。 ３）カーボン刷子は断面略正方形で四角の夫々に突起を
形成してなることを特徴とする特許請求の範囲第１項記
載のモータの刷子装置。[Scope of Claims] 1) A brush device for a motor in which a carbon brush is attached to a brush mount via an elastic holding plate, characterized in that the elastic holding plate is made of a Mn-Cu alloy. brush device. 2) The elastic retaining plate is Mn-C containing 55 wt% Mn.
The brush device for a motor according to claim 1, characterized in that it is made of U alloy. 3) The brush device for a motor according to claim 1, wherein the carbon brush has a substantially square cross section and has projections formed on each of the squares.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60010629A JPS61170257A (en) | 1985-01-22 | 1985-01-22 | Brush device for motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60010629A JPS61170257A (en) | 1985-01-22 | 1985-01-22 | Brush device for motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61170257A true JPS61170257A (en) | 1986-07-31 |
Family
ID=11755508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60010629A Pending JPS61170257A (en) | 1985-01-22 | 1985-01-22 | Brush device for motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61170257A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108233583A (en) * | 2016-12-14 | 2018-06-29 | 德昌电机(深圳)有限公司 | Motor and its brush |
-
1985
- 1985-01-22 JP JP60010629A patent/JPS61170257A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108233583A (en) * | 2016-12-14 | 2018-06-29 | 德昌电机(深圳)有限公司 | Motor and its brush |
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