JPS60162450A - Micromotor - Google Patents
MicromotorInfo
- Publication number
- JPS60162450A JPS60162450A JP1732984A JP1732984A JPS60162450A JP S60162450 A JPS60162450 A JP S60162450A JP 1732984 A JP1732984 A JP 1732984A JP 1732984 A JP1732984 A JP 1732984A JP S60162450 A JPS60162450 A JP S60162450A
- Authority
- JP
- Japan
- Prior art keywords
- commutator
- tube
- moisture
- micromotor
- motor
- 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
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/38—Brush holders
- H01R39/39—Brush holders wherein the brush is fixedly mounted in the holder
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
- H02K13/006—Structural associations of commutators
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- 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、ビデオテープレコーダーやテープレコーダー
の回転駆動部に用いられるマイクロモーターに関するも
のである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a micromotor used in a rotation drive unit of a video tape recorder or tape recorder.
従来例の構成とその問題点
ビデオテープレコーダーやテープレコーダーのＩＩｊ１
転駆動部【′Ｃ用いられるマイクロモーターの故障の一
つにマイクロモーター内部に存在する？＆力１の有機カ
スが摺動接点である整流子、刷子の摺動部でメカノケミ
カル反応をし、整流子表面」二に黒色異物を生へさせる
。この黒色異物は絶縁物であるため、整流子、刷子間の
接触抵抗が増大し、モークーの回転変動あるいは回転不
能を起こすことがある。ま／こ、モーター構成材料には
多量の有機制料を使用しているため、微量の有機ガスが
発生しモーター内部には常に有機ガスが存在するため整
流子表面上への黒色異物の発生は避けられないのが現伏
である。Conventional configuration and its problems IIj1 of video tape recorder and tape recorder
One of the failures of the micromotor used in the rotation drive unit is that it exists inside the micromotor. The organic debris under force 1 undergoes a mechanochemical reaction on the sliding parts of the commutator and brush, which are the sliding contacts, producing black foreign matter on the surface of the commutator. Since this black foreign material is an insulating material, the contact resistance between the commutator and the brush increases, which may cause fluctuations in the rotation of the motor or the inability to rotate. Since a large amount of organic material is used in the motor component materials, a small amount of organic gas is generated.As organic gas is always present inside the motor, black foreign matter will not be generated on the commutator surface. What is unavoidable is genbushi.
発明の目的
本発明は、このようなマイクロモーターの故障原因の一
つである黒色異物発生による整流子、刷子間の接触不良
をなくするものである。OBJECTS OF THE INVENTION The present invention eliminates poor contact between the commutator and the brushes due to the generation of black foreign matter, which is one of the causes of failure of such micromotors.
発明の構成
本発明は、マイクロモーターの摺動接点である整流子」
二への黒色異物の生成を少なくするために、種々の検討
結果、モーター内部を調湿することによりその生成を抑
えたものである。Structure of the Invention The present invention relates to a commutator which is a sliding contact of a micromotor.
As a result of various studies, the generation of black foreign matter was suppressed by controlling the humidity inside the motor.
実施例の説明
以下、本発明について詳細に説明する。第１図にイ」機
ガスとし−ごトルエン２５ Ｑ ｐｐｍ存在下、温度２
６℃、モーター回転数２２００ ｒｐｍで１００時間後
における相対湿度と整流子」二への黒色異物生成量の関
係をめた実験結果を示す。第２図に第１図と同条件下に
おけるモーター回転時における整流子、刷子間の接触抵
抗と相対湿度の関係を測定した結果を示す。整流子材は
ムｕ−Ａｇ４０％合金、刷子拐はＡｇ−Ｐｄ３０％合金
を用いた。DESCRIPTION OF EMBODIMENTS The present invention will be described in detail below. Figure 1 shows the machine gas - toluene in the presence of 25 Q ppm at a temperature of 2.
The experimental results are shown to determine the relationship between the relative humidity and the amount of black foreign matter produced on the commutator after 100 hours at 6° C. and 2200 rpm. FIG. 2 shows the results of measuring the relationship between the contact resistance between the commutator and the brush and the relative humidity during motor rotation under the same conditions as in FIG. 1. The commutator material was a 40% Mu-Ag alloy, and the brush board was a 30% Ag-Pd alloy.
第１図および第２図より相対湿度が高いほど黒色異物の
生成量は少なく、接触抵抗の増加はないことがわかる。It can be seen from FIGS. 1 and 2 that the higher the relative humidity, the smaller the amount of black foreign matter produced, and the contact resistance did not increase.
第３図に本発明のマイクロモーターの構成を示す。第３
図において、マイクロモーターハ刷子２および調湿用の
ハーミエーシ式ンチューブ３を取付けたプラタンｌ−１
と整流子６を装着したアマチュア４および永久磁石を取
り付けたフレーム６より構成されている。FIG. 3 shows the configuration of the micromotor of the present invention. Third
In the figure, a platen l-1 is equipped with a micromotor brush 2 and a humidity control hermiace tube 3.
The armature 4 is equipped with a commutator 6, and a frame 6 is equipped with a permanent magnet.
第４図に本発明と従来モーターにおける整流子。Figure 4 shows commutators in the present invention and conventional motors.
刷子間のモーター回転時における接触紙の経時変化を測
定した結果を示す。実験条件は、温度２６℃、相対湿度
３０％、有機ガスとしてトルエン２５０ｐｐｍ、モータ
ー回転数２２００ ｒｐｍ 、整流子Ａｕ−Ａｇ４０％
合金、刷子Ａｇ−ｐａｉｓｏ％合金である。第４図にお
ける曲線Ａはモーター内部をパーミエーシジンチューブ
３により相対湿度８０ツ）に調湿した本発明のマイクロ
モーターである。The results of measuring changes in contact paper over time during motor rotation between brushes are shown. The experimental conditions were: temperature 26°C, relative humidity 30%, toluene 250 ppm as organic gas, motor rotation speed 2200 rpm, commutator Au-Ag 40%.
Alloy, brush Ag-paiso% alloy. Curve A in FIG. 4 is a micromotor of the present invention in which the humidity inside the motor is controlled to a relative humidity of 80°C by a permeable resin tube 3.
パーミニ−シコンチューブとはフッ素樹脂管に水を封入
したもので恒温低湿になると管中の水が管壁を浸透拡散
してくるのを利用して調湿するものである。曲線Ｂは、
従来の調湿していないマイク。A Permini-Sicon tube is a fluororesin tube filled with water, and when the temperature and humidity are constant, the water in the tube permeates and diffuses through the tube wall to control humidity. Curve B is
Conventional non-humidity controlled microphone.
ロモーターである。It is a motor.
発明の効果
不発りｊのマイクロモーターは、従来のモーターに比べ
黒色異物の生成が少ないため、接触抵抗は安定しており
増加しない。本発明マイクロモーターは、前述のように
整流子、刷子間の接触抵抗安定性にすぐれている。Effects of the Invention J's micromotor generates less black foreign matter than conventional motors, so the contact resistance is stable and does not increase. As mentioned above, the micromotor of the present invention has excellent contact resistance stability between the commutator and the brushes.
第１図は整流子」二への黒色異物生成量と相対湿度の関
係を示しだ図、第２図はモーター回転時における整流子
、刷子間の接触抵抗と相対湿度の関係を示した図、第３
図は本発明のマイクロモーターの構成図、第４図は本発
明のモーターと従来モーターにおける整流子２刷子間の
接触抵抗を比較した図である。
２・・・・刷子、３・・・・・・調湿用ハーミエーシジ
ンチューブ０
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第１
図
０ ５θ １００
相対湿渡 ３
第２図
０ ／θＯ
相対プなに
第３図
袋
将
相
農
０１００
時間唆ｒFigure 1 shows the relationship between the amount of black foreign matter generated on the commutator 2 and relative humidity, and Figure 2 shows the relationship between the contact resistance between the commutator and brushes during motor rotation and relative humidity. Third
The figure is a block diagram of the micromotor of the present invention, and FIG. 4 is a diagram comparing the contact resistance between two commutator brushes in the motor of the present invention and a conventional motor. 2... Brush, 3... Hermiesigin tube for humidity control 0 Name of agent: Patent attorney Satoshi Nakao and 1 other person 1st
Figure 0 5θ 100 Relative Wet 3 Figure 2 0 /θO Relative Figure 3 Bag Shoso Agriculture 0100 Time Influencer
Claims (1)
ーター。A micromotor characterized by humidity controlled inside the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1732984A JPS60162450A (en) | 1984-02-01 | 1984-02-01 | Micromotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1732984A JPS60162450A (en) | 1984-02-01 | 1984-02-01 | Micromotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60162450A true JPS60162450A (en) | 1985-08-24 |
Family
ID=11941007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1732984A Pending JPS60162450A (en) | 1984-02-01 | 1984-02-01 | Micromotor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60162450A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6270663U (en) * | 1985-10-22 | 1987-05-06 |
-
1984
- 1984-02-01 JP JP1732984A patent/JPS60162450A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6270663U (en) * | 1985-10-22 | 1987-05-06 |
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