JPH02219438A - Ceramic brush for rotary electric machine - Google Patents
Ceramic brush for rotary electric machineInfo
- Publication number
- JPH02219438A JPH02219438A JP3618689A JP3618689A JPH02219438A JP H02219438 A JPH02219438 A JP H02219438A JP 3618689 A JP3618689 A JP 3618689A JP 3618689 A JP3618689 A JP 3618689A JP H02219438 A JPH02219438 A JP H02219438A
- Authority
- JP
- Japan
- Prior art keywords
- conductor
- brush
- ceramic brush
- electric machine
- ceramic
- 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
Landscapes
- Motor Or Generator Current Collectors (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、小形電動機などの回転電機にセラミックスブ
ラシを使用する場合のリード線接合方法に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for joining lead wires when ceramic brushes are used in rotating electric machines such as small electric motors.
特開昭６０−３９３３８号公報等に示されるように、刷
子を導電性セラミック機で形成することはすでに知られ
ている。As shown in Japanese Patent Application Laid-Open No. 60-39338, it is already known to form brushes using a conductive ceramic machine.
従来技術のセラミックスブラシのリード線接続方法は、
量産できるような手法は確立されていなかった。The conventional ceramic brush lead wire connection method is as follows:
There was no established method for mass production.
本発明の目的は、摩耗量の少ない導電性セラミックスブ
ラシを使用するにあたり、リード線とセラミックスブラ
シの接続を容易にし、伝導性が高く信頼性の高い電気ブ
ラシを提供することを目的とする。An object of the present invention is to provide an electric brush with high conductivity and high reliability by facilitating connection between a lead wire and a ceramic brush when using a conductive ceramic brush with low wear amount.
上記目的を達成するために、ブラシのピグテール接続部
を銅、アルミなどの展性導体によって形成し、これをセ
ラミックスブラシに圧着、あるいは溶着等によって固着
することによってセラミックスブラシとピグテールとを
電気的に接続することにより達成できる。In order to achieve the above purpose, the pigtail connection part of the brush is formed of a malleable conductor such as copper or aluminum, and this is fixed to the ceramic brush by crimping or welding, thereby electrically connecting the ceramic brush and the pigtail. This can be achieved by connecting.
この様に構成した本発明によればピグテールは展性導体
に半田付等従来同様の方法で接続できるので接続が簡単
で確実であり、これによりセラミックスブラシの実用化
が可能となる。According to the present invention constructed in this way, the pigtail can be connected to the malleable conductor by a conventional method such as soldering, so the connection is simple and reliable, and this makes it possible to put a ceramic brush into practical use.
以下、本発明の一実施例を第１図により説明する。 An embodiment of the present invention will be described below with reference to FIG.
図中１は、リード線２を接続する展性のある例えば銅、
アルミ等の導体であり、この導体１をセラミックスブラ
シ３に加締め部４にて圧着接合されている。このセラミ
ックスブラシ３は、第２図に示す如く軸方向にのびる突
出部３ａを一体に形成してあり、加締め時の接合力を向
上すると共に導体１との接触面積を大きくしである。こ
の導体１と、セラミックスブラシ３の圧着接合は、導体
１の塑性変形や溶融による圧着法などが考えられる。塑
性変形は加締め部４の様に表面の一部を両側からプレス
機等により押圧して圧着する方法や、全面を同時に押圧
し塑性変形させる方法がある。In the figure, 1 indicates a malleable material such as copper, which connects the lead wire 2.
The conductor 1 is made of aluminum or the like, and the conductor 1 is crimped and bonded to a ceramic brush 3 at a caulking portion 4 . This ceramic brush 3 is integrally formed with a protrusion 3a extending in the axial direction, as shown in FIG. 2, to improve the bonding force during crimping and to increase the contact area with the conductor 1. The conductor 1 and the ceramic brush 3 may be crimped and bonded by a crimping method using plastic deformation or melting of the conductor 1. Plastic deformation can be achieved by pressing a part of the surface from both sides using a press machine or the like, such as the caulking part 4, or by simultaneously pressing the entire surface and plastically deforming it.
溶融圧着法は電極により両面から電流を流し、接合部の
抵抗損による発熱によって溶融圧着する方法である。い
ずれも突出部３ａに導体１を圧着し、接続するものであ
る。The fusion bonding method is a method in which current is passed from both sides using electrodes, and the heat generated by resistance loss at the bonding portion is used to perform fusion bonding. In either case, the conductor 1 is crimped onto the protrusion 3a for connection.
第３図は他の実施例で突出部３ｂを楔状に形成したもの
である。第４図は突出部３ｃの表面を波形などの粗面状
にしたもので、導体１を圧着した場合に、より接着性を
向上したものである。接着性を向上させる他の方法とし
て、導電性接着剤を突出部３ａ、３ｂ、３ｃに塗布、充
填して併用することも可能である。FIG. 3 shows another embodiment in which the protrusion 3b is formed into a wedge shape. In FIG. 4, the surface of the protrusion 3c is roughened, such as a corrugated surface, and the adhesion is further improved when the conductor 1 is crimped. As another method for improving adhesiveness, it is also possible to apply and fill the protrusions 3a, 3b, and 3c with a conductive adhesive.
導体１とリード線２との接続は、導体１に穴を設はリー
ド線２を挿入して半田付け、ロー付けするが、導体１を
圧着する。また第５図に示すように導体１の表面にリー
ド線２を抑圧、溶着などして接続する。The conductor 1 and the lead wire 2 are connected by making a hole in the conductor 1, inserting the lead wire 2, and soldering or brazing, and the conductor 1 is crimped. Further, as shown in FIG. 5, a lead wire 2 is connected to the surface of the conductor 1 by pressing, welding, etc.
尚、展性導体１は導電性のある金属板によって形成して
も良い。Note that the malleable conductor 1 may be formed of a conductive metal plate.
本発明によれば、リード線（ピグテール）接続部が圧着
で確実なため発熱が無く信頼性、導電性が高い、また容
易に圧着できるため作業性も向上できる。According to the present invention, the lead wire (pigtail) connection part is securely crimped, so there is no heat generation, and reliability and conductivity are high.Furthermore, workability can be improved because it can be easily crimped.
また、セラミックスブラシに、導体を接合しているため
、セラミックスの使用量を減らすことが可能でコスト低
減が可能である。導電性セラミックスの導電性は銅にく
らべると小さいので、導体１の長さを調整すれば抵抗を
増減でき、要求する特性を得ることができるなど高信頼
性、導電性の向上１作業性の向上、性能向上などの効果
がある。Furthermore, since the conductor is bonded to the ceramic brush, it is possible to reduce the amount of ceramics used and thus cost. Since the conductivity of conductive ceramics is lower than that of copper, the resistance can be increased or decreased by adjusting the length of the conductor 1, and the required characteristics can be obtained. Improved reliability and conductivity 1. Improved workability. , which has the effect of improving performance.
第１図は本発明の一実施例のブラシの斜視図、第２図は
導体とセラミックスブラシ部組立図、第３図は他の実施
例で突出部の形状を改善したものを示す図、第４図は突
出部の表面形状をさらに改善した実施例を示す図、第５
図は導体とリード線を接続した他の実施例を示す図であ
る。
１・・・導体、２・・・リード線、３・・・セラミック
スブラシ、３ａ、３ｂ、３ｃ・・・突出部、４・・・カ
シメ部。FIG. 1 is a perspective view of a brush according to an embodiment of the present invention, FIG. 2 is an assembled diagram of the conductor and ceramic brush parts, FIG. 3 is a diagram showing another embodiment with an improved shape of the protrusion, and FIG. Figure 4 shows an example in which the surface shape of the protrusion is further improved;
The figure shows another embodiment in which a conductor and a lead wire are connected. DESCRIPTION OF SYMBOLS 1... Conductor, 2... Lead wire, 3... Ceramic brush, 3a, 3b, 3c... Protrusion part, 4... Caulking part.
Claims (1)
用し、リード線（ピグテール）との接続は銅、アルミニ
ウムなどの展性導体を前記導電性セラミックスブラシに
圧着、または溶着して接続し、前記リード線と前記導体
とは圧着、溶着、半田付、ロー付などの接続法により接
続したことを特徴とする回転電機のセラミックスブラシ
。1. A conductive ceramic brush is used as the brush of the rotating electric machine, and the lead wire (pigtail) is connected by crimping or welding a malleable conductor such as copper or aluminum to the conductive ceramic brush, and the lead A ceramic brush for a rotating electric machine, characterized in that the wire and the conductor are connected by a connection method such as crimping, welding, soldering, or brazing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3618689A JPH02219438A (en) | 1989-02-17 | 1989-02-17 | Ceramic brush for rotary electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3618689A JPH02219438A (en) | 1989-02-17 | 1989-02-17 | Ceramic brush for rotary electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02219438A true JPH02219438A (en) | 1990-09-03 |
Family
ID=12462699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3618689A Pending JPH02219438A (en) | 1989-02-17 | 1989-02-17 | Ceramic brush for rotary electric machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02219438A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179615A (en) * | 2011-04-29 | 2011-09-14 | 苏州东南碳制品有限公司 | Fixture for spot welding of brush |
| CN102576968A (en) * | 2009-09-23 | 2012-07-11 | 罗伯特·博世有限公司 | Commutator for power transmission in an electric machine |
| JP2015080326A (en) * | 2013-10-16 | 2015-04-23 | アスモ株式会社 | Dynamo-electric machine |
| JP2016100954A (en) * | 2014-11-20 | 2016-05-30 | 日産自動車株式会社 | Sliding contact member |
-
1989
- 1989-02-17 JP JP3618689A patent/JPH02219438A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102576968A (en) * | 2009-09-23 | 2012-07-11 | 罗伯特·博世有限公司 | Commutator for power transmission in an electric machine |
| CN102179615A (en) * | 2011-04-29 | 2011-09-14 | 苏州东南碳制品有限公司 | Fixture for spot welding of brush |
| JP2015080326A (en) * | 2013-10-16 | 2015-04-23 | アスモ株式会社 | Dynamo-electric machine |
| JP2016100954A (en) * | 2014-11-20 | 2016-05-30 | 日産自動車株式会社 | Sliding contact member |
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