JPS63271875A - Compact direct current motor - Google Patents
Compact direct current motorInfo
- Publication number
- JPS63271875A JPS63271875A JP10667387A JP10667387A JPS63271875A JP S63271875 A JPS63271875 A JP S63271875A JP 10667387 A JP10667387 A JP 10667387A JP 10667387 A JP10667387 A JP 10667387A JP S63271875 A JPS63271875 A JP S63271875A
- Authority
- JP
- Japan
- Prior art keywords
- brush
- contact piece
- life
- fixed
- holder
- 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
- 238000001514 detection method Methods 0.000 claims description 6
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 241000239290 Araneae Species 0.000 description 1
- 206010036790 Productive cough Diseases 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 210000003802 sputum Anatomy 0.000 description 1
- 208000024794 sputum Diseases 0.000 description 1
Landscapes
- Motor Or Generator Current Collectors (AREA)
Abstract
Description
【発明の詳細な説明】 産業上の利用分野 本発明は小型直流モータに関するものである。[Detailed description of the invention] Industrial applications The present invention relates to a small DC motor.
従来の技術
従来の小型直流モータは、例えば実公昭５２−２４７２
６号公報に示されるように、第３図のようになっている
。2. Description of the Related Art Conventional small DC motors are known, for example, from the Japanese Utility Model Publication No.
As shown in Publication No. 6, it is as shown in Fig. 3.
刷子ホルダー１は刷子ホルダー取付板２に固設され、刷
子ホルダー１内にスプリングａ、刷子４が収納されてい
る。刷子４は整流子５に、スプリング３によって押圧さ
れ接触している。これによシ通電可能で、モータが回転
できる。また刷子４にはピグテール６が接続され、刷子
ホルダー１に接続され、外部リード線７に接続されてい
る。A brush holder 1 is fixed to a brush holder mounting plate 2, and a spring a and a brush 4 are housed inside the brush holder 1. The brush 4 is pressed into contact with the commutator 5 by the spring 3. This allows electricity to be applied and the motor to rotate. Further, a pigtail 6 is connected to the brush 4, which is connected to the brush holder 1, and is connected to an external lead wire 7.
発明が解決しようとする問題点
しかしながら、上記のような構成では、刷子の寿命に対
して、検出できないため、いつ寿命で止まるかわからず
、特に車輌用のブロアモータにおいては、モータが急に
止まると、窓の氷結、くもシ防止、更には冷暖房ができ
ないという重大問題となる。Problems to be Solved by the Invention However, with the above configuration, it is not possible to detect the lifespan of the brush, so there is no way to know when the brush will reach the end of its lifespan.Especially in the case of a blower motor for a vehicle, if the motor stops suddenly. This poses serious problems, such as icing on windows, preventing spiders, and making heating and cooling impossible.
本発明は、上記点に鑑み、刷子寿命近辺になったことを
検出し、それによシ刷子寿命以前に知らせることができ
る小型直流モータを提供するものである。In view of the above-mentioned points, the present invention provides a small DC motor that can detect when a brush is nearing the end of its life, and can notify the user before the end of the brush's life.
問題点を解決するだめの手段
上記問題点を解決するために本発明の小型直流モータは
刷子ホルダー取付板に固設されたバネ性を有する接触片
を備え、刷子が寿命近辺になった時、刷子のピグテール
または刷子に固設した接触片と接触させる寿命検出部を
設けてなるものである。Means for Solving the Problems In order to solve the above problems, the small DC motor of the present invention is provided with a contact piece having spring properties fixed to the brush holder mounting plate, so that when the brush reaches the end of its service life, A life detection section is provided which is brought into contact with the pigtail of the brush or a contact piece fixed to the brush.
作 用
本発明は上記した構成によって、刷子が寿命近辺である
ことを事前に知らせ、交換を促すことが可能で、モータ
が急に止まることの各種問題を解消することができる。Function: With the above-described configuration, the present invention can notify in advance that the brush is nearing the end of its lifespan, prompting for replacement, and can solve various problems caused by sudden stopping of the motor.
実施例
以下本発明の一実施例の小型直流モータについて、図面
を参照しながら説明する。EXAMPLE Hereinafter, a small DC motor according to an example of the present invention will be described with reference to the drawings.
第１図は本発明の一実施例における構成図である。同図
において、刷子ホルダー１は刷子ホルダー取付板２に固
設され、刷子ホルダー１内に刷子４が収納され、スプリ
ング３によシ整流子５に押えつけられている。刷子４に
はピグテール６が接続され、片方は前記刷子ホルダー１
に接続されている。ブラシホルダーからはリード線７が
接続され、電源（プラス）に、他方のリード線８はアー
スに各々接続されている。８は刷子寿命検出部で、ブラ
シに固設された痰触片９、刷子ホルダー取付板２に固設
された接触片１０、この接触片１０に接続されたリード
線１１よシ成シ立っている。リード線１１はランプ１２
を通してアースに接続されている。FIG. 1 is a block diagram of an embodiment of the present invention. In the figure, a brush holder 1 is fixed to a brush holder mounting plate 2, a brush 4 is housed in the brush holder 1, and is pressed against a commutator 5 by a spring 3. A pigtail 6 is connected to the brush 4, and one end is attached to the brush holder 1.
It is connected to the. A lead wire 7 is connected to the brush holder, and the other lead wire 8 is connected to a power source (plus) and ground. Reference numeral 8 denotes a brush life detection section, which is formed by a sputum contact piece 9 fixed to the brush, a contact piece 10 fixed to the brush holder mounting plate 2, and a lead wire 11 connected to this contact piece 10. There is. The lead wire 11 is the lamp 12
connected to ground through.
上記構成において、刷子寿命検出部８の詳細図である第
２図を用いて、検出方法を説明する。スプリング３によ
シ刷子４は整流子５側へ押されておシ、回転し続けると
刷子４が徐々に削られて、寿命になると通電しなくなシ
、モータはストップする。ここで、ピグテール６近辺に
設け、刷子４に固設された接触片９は徐々に整流子５側
に動く。In the above configuration, the detection method will be explained using FIG. 2, which is a detailed diagram of the brush life detection section 8. The brush 4 is pushed toward the commutator 5 by the spring 3, and as it continues to rotate, the brush 4 is gradually scraped, and when it reaches the end of its life, it is no longer energized and the motor stops. Here, the contact piece 9 provided near the pigtail 6 and fixed to the brush 4 gradually moves toward the commutator 5 side.
寿命近くになった時、接触片１０と接触し、第１図のラ
ンプ１２が点灯する。従って刷子寿命近くになると交換
する必要があるということを知らせることが可能である
。尚、接触片９，１０が接触した後も、接触片１０がバ
ネ性を有するため、回転し続ける。When the lamp reaches the end of its life, it comes into contact with the contact piece 10, and the lamp 12 shown in FIG. 1 lights up. Therefore, it is possible to notify that the brush needs to be replaced when it is nearing its lifespan. Note that even after the contact pieces 9 and 10 come into contact, since the contact piece 10 has spring properties, it continues to rotate.
発明の効果
以上のように本発明は、刷子寿命検出部を設けているた
め、刷子寿命近辺で交換を促がすことが可能で、急にモ
ータが止まることによる重大な種々問題を解消できると
いう秀れた利点を有するものである。Effects of the Invention As described above, since the present invention is provided with a brush life detection section, it is possible to prompt the brush to be replaced when the brush is near its lifespan, and it is possible to solve various serious problems caused by the motor suddenly stopping. It has excellent advantages.
第１図は本発明の小型直流モータの刷子ホルダ一部の構
成図、第２図は同要部斜視図、第３図は従来例を示す小
型直流モータの刷子ホルダ一部の構成図である。
１ ・・・・刷子ホルダー、２・・・・・・刷子ホルダ
ー取付板、４・・・・・・刷子、６・・・・・ピグテー
ル、９・・・・・・接触片、１０・・・・・・接触片。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名１−
・刷子ホルダー
２−・刷子ホルタ″−攻イキ阪
３− スプリング
４−・刷子
５−−一堅充子
６−・−ピク゛°テール
７．８−・ リード４莢
’／ ？、 ＩＯ−・−棲触片FIG. 1 is a configuration diagram of a part of the brush holder of a small DC motor of the present invention, FIG. 2 is a perspective view of the same essential part, and FIG. 3 is a configuration diagram of a part of the brush holder of a small DC motor showing a conventional example. . 1...Brush holder, 2...Brush holder mounting plate, 4...Brush, 6...Pigtail, 9...Contact piece, 10... ...Contact piece. Name of agent: Patent attorney Toshio Nakao and 1 other person1-
・Brush holder 2-・Brush holter''-Off attack 3-Spring 4-・Brush 5--Mitsuko Ikken 6-・-Piku゛° tail 7.8-・Lead 4 pods'/?, IO-・-Seki tentacles
Claims (1)
ホルダー取付板に固設されたバネ性を有する接触片を備
え、刷子が寿命近辺になった時、刷子のピグテールまた
は刷子に固設した接触片と接触させる刷子寿命検出部を
設けてなる小型直流モータ。A brush, a brush holder, a brush holder mounting plate, and a contact piece with spring properties fixed to the brush holder mounting plate are provided. A small DC motor equipped with a contact brush life detection unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10667387A JPS63271875A (en) | 1987-04-30 | 1987-04-30 | Compact direct current motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10667387A JPS63271875A (en) | 1987-04-30 | 1987-04-30 | Compact direct current motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63271875A true JPS63271875A (en) | 1988-11-09 |
Family
ID=14439591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10667387A Pending JPS63271875A (en) | 1987-04-30 | 1987-04-30 | Compact direct current motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63271875A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0237574U (en) * | 1988-09-05 | 1990-03-13 | ||
| JPH0435665U (en) * | 1990-07-24 | 1992-03-25 | ||
| US5648695A (en) * | 1994-09-30 | 1997-07-15 | Asmo Co., Ltd. | Brush apparatus for electric rotating machine |
| KR100493611B1 (en) * | 2001-12-11 | 2005-06-10 | 미쓰비시덴키 가부시키가이샤 | Automotive alternator and automotive alternator brush abrasion detection system |
-
1987
- 1987-04-30 JP JP10667387A patent/JPS63271875A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0237574U (en) * | 1988-09-05 | 1990-03-13 | ||
| JPH0435665U (en) * | 1990-07-24 | 1992-03-25 | ||
| US5648695A (en) * | 1994-09-30 | 1997-07-15 | Asmo Co., Ltd. | Brush apparatus for electric rotating machine |
| KR100493611B1 (en) * | 2001-12-11 | 2005-06-10 | 미쓰비시덴키 가부시키가이샤 | Automotive alternator and automotive alternator brush abrasion detection system |
| US7116032B2 (en) | 2001-12-11 | 2006-10-03 | Mitsubishi Denki Kabushiki Kaisha | Automotive alternator and automotive alternator brush abrasion detection system |
| US7274127B2 (en) | 2001-12-11 | 2007-09-25 | Mitsubishi Deni Kabushiki Kaisha | Automotive alternator and automotive alternator brush abrasion detection system |
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