JPS61218084A - Slide contact - Google Patents
Slide contactInfo
- Publication number
- JPS61218084A JPS61218084A JP5855785A JP5855785A JPS61218084A JP S61218084 A JPS61218084 A JP S61218084A JP 5855785 A JP5855785 A JP 5855785A JP 5855785 A JP5855785 A JP 5855785A JP S61218084 A JPS61218084 A JP S61218084A
- Authority
- JP
- Japan
- Prior art keywords
- sliding contact
- sliding
- base material
- slide contact
- heat
- 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.)
- Granted
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〕
本発明はマイクロモータ等に用いられる、摺動接点材を
ベース材に複合化した摺動接点に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a sliding contact, which is used in micro motors and the like, and is made by combining a sliding contact material with a base material.
従来より、摺動接点材との複合化に用いられているベー
ス材として、エポキシ系樹脂及びジアリルフタレート等
の熱可塑性プラスチックが用いられている。Conventionally, thermoplastic plastics such as epoxy resins and diallyl phthalate have been used as base materials for compounding with sliding contact materials.
しかしながらこれらプラスチックは、熱伝導において１
０ ”／ａｎ、９１！ｃ、℃のオーダーであシ、熱伝
導が悪く、熱放散においても放熱性が悪い。このような
熱伝導及び放熱性に優秀でない材料を摺動接点特性の高
い接点材のベース材として用いた場合、その摺動特性が
損なわれてしまう。However, these plastics have a 1.
0"/an, 91!C, on the order of °C, has poor heat conduction and poor heat dissipation. Materials that do not have excellent heat conduction and heat dissipation properties can be used as contacts with high sliding contact characteristics. When used as a base material for wood, its sliding properties will be impaired.
なぜなら、摺動時に発生する熱は微小アーク熱及びジュ
ール熱、機械的摩擦熱等の総和であシ、この発生熱によ
り摺動表面の機械的特性、物理的特性が不安定となり、
ノイズ発生及び消耗増加の原因となっている。さらに、
プラスチックにおいては、接点材とのモールド加工等に
おいて、熱影響を被ることをさけられないことが接点特
性劣化のさらなる要因となっている。This is because the heat generated during sliding is the sum of minute arc heat, Joule heat, mechanical friction heat, etc., and this generated heat makes the mechanical and physical properties of the sliding surface unstable.
This causes noise generation and increased wear and tear. moreover,
In the case of plastics, the unavoidable thermal effect during molding with contact materials is a further factor in the deterioration of contact characteristics.
本発明は、アルミナ、ベリリア、マグネシア等の酸化物
系もしくは、窒化物系において、室温における熱伝導率
が０．０５ ”／ｃｒｒｌ −５ｅｃ−℃ 以上のセ
ラミックスを摺動接点のベース材としたことを特徴とす
る。The present invention uses oxide-based or nitride-based ceramics such as alumina, beryllia, and magnesia, which have a thermal conductivity of 0.05"/crrl -5ec-°C or more at room temperature, as the base material of the sliding contact. It is characterized by
上述した手段によれば、セラミックスの有する良好な熱
伝導性及び熱−散性によってマイクロモータ等の摺動接
点の高速回転時における発生熱による摺動接点特性への
影響を大幅に削減することができる。According to the above-mentioned means, it is possible to significantly reduce the influence of heat generated on the characteristics of sliding contacts during high-speed rotation of sliding contacts such as micro motors due to the good thermal conductivity and heat dissipation properties of ceramics. can.
以下に本発明の一実施例を説明する。 An embodiment of the present invention will be described below.
摺動接点材料として６０Ａｕ−Ａｇ合金を用い、ベース
材としてアルミナ焼結材電融マグネシア単結晶材を用い
る。A 60Au-Ag alloy is used as the sliding contact material, and an alumina sintered fused magnesia single crystal material is used as the base material.
第１図は本実施例の側面図、第２図は平面図である。FIG. 1 is a side view of this embodiment, and FIG. 2 is a plan view.
図において１は摺動接点材であシ、厚さ５μ、内径２０
φ、外径２５φの平らなリング形状をなし、角度１２０
°でスリット加工が施しである。２はベース材であシ、
厚さ５＋ｍ直径３０φの平らな円板で、上記摺動接点材
１と複合して摺動接点３を形成している。In the figure, 1 is a sliding contact material, thickness 5μ, inner diameter 20
φ, flat ring shape with outer diameter 25φ, angle 120
Slit processing is applied at °. 2 is the base material,
It is a flat disk with a thickness of 5+m and a diameter of 30φ, and is combined with the sliding contact material 1 to form the sliding contact 3.
比較のための従来例として、同様の摺動接点材にベース
材としてエポキシ樹脂を複合し同様の形状にて作成した
。As a conventional example for comparison, a similar sliding contact material was composited with an epoxy resin as a base material to create a similar shape.
第３図は摺動試験状態を示す斜視図であシ、４ハブラシ
材である。摺動試験にはブラシ材４にＡＪ−Ｐｄ−Ｃｕ
系合金を用い、第１表のような結果を得た。FIG. 3 is a perspective view showing a sliding test state, and shows four toothbrush materials. For the sliding test, AJ-Pd-Cu was used as the brush material 4.
Using these alloys, the results shown in Table 1 were obtained.
なお、摺動特性の評価方法として、ノイズレベルが０．
１ ｍＶに達するまでの時間にて評価した。In addition, as a method for evaluating the sliding characteristics, the noise level is 0.
Evaluation was made based on the time taken to reach 1 mV.
第１表
試験条件 電 圧 １２ ＶＤｃ
電流’ＯＯｍＡ
回転数 ４５ ｒｐｍ
室温（２５℃） 湿度 ４０チ
ブラシ圧 ５Ｉ
負 荷 抵抗負荷
上記第１表から明らかな如く、本実施例は耐ノイズ性に
優れていることが判る。ま九このことは安定した接触抵
抗が得られることと耐寿命に優れていることを表してい
る。また、セラミックスをベース材にすることによシ、
従来の合成樹脂では得られない平坦度が得られるため、
ブラシ形状。Table 1 Test conditions Voltage 12 VDc Current '00mA Rotation speed 45 rpm Room temperature (25°C) Humidity 40° Brush pressure 5I Load Resistive load As is clear from Table 1 above, this example has excellent noise resistance. I understand that. This shows that stable contact resistance can be obtained and that the product has excellent service life. In addition, by using ceramics as the base material,
Because it provides flatness that cannot be obtained with conventional synthetic resins,
brush shape.
ブラシ圧等のブラシ側の特性に左右されることがない。It is not affected by brush side characteristics such as brush pressure.
以上説明したように、本発明は、熱伝導性及び熱拡散に
優れ、高い平坦度が得られるセラミックスをベース材と
して摺動接点材を複合化することによシ、その摺動接点
の特性劣化を大幅に削減でき、しかも耐久性の高い摺動
接点を供することができる。As explained above, the present invention is capable of deteriorating the characteristics of the sliding contact by compounding the sliding contact material using ceramics as the base material, which has excellent thermal conductivity and thermal diffusion, and can obtain high flatness. It is possible to significantly reduce the amount of damage and provide a highly durable sliding contact.
第１図は本発明の一実施例を示す側面図、第２図はその
平面図、第３図は摺動試験状態を示す斜視図である。
１・・・摺動接点材 ２・・・ベース材 ３・・・摺動
接点４・・・ブラシ材FIG. 1 is a side view showing an embodiment of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a perspective view showing a sliding test state. 1...Sliding contact material 2...Base material 3...Sliding contact 4...Brush material
Claims (1)
いて、アルミナ、ベリリア、マグネシア等の酸化物系も
しくは窒化物系の内で、室温における熱伝導率が０．０
５ｃａｌ／ａｍ・ｓｅｃ・℃以上のセラミックスをベー
ス材としたことを特徴とする摺動接点。1. In a sliding contact made of a composite sliding contact material on a base material, the thermal conductivity at room temperature is 0.0 among oxide-based or nitride-based materials such as alumina, beryllia, and magnesia.
A sliding contact characterized by using ceramics as a base material with a temperature of 5 cal/am・sec・℃ or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5855785A JPS61218084A (en) | 1985-03-25 | 1985-03-25 | Slide contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5855785A JPS61218084A (en) | 1985-03-25 | 1985-03-25 | Slide contact |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61218084A true JPS61218084A (en) | 1986-09-27 |
| JPH05832B2 JPH05832B2 (en) | 1993-01-06 |
Family
ID=13087755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5855785A Granted JPS61218084A (en) | 1985-03-25 | 1985-03-25 | Slide contact |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61218084A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52111362U (en) * | 1976-02-19 | 1977-08-24 | ||
| JPS597335A (en) * | 1982-06-22 | 1984-01-14 | トムソン−セエスエフ | Optically integrated modulation device independent of polarized state of incident light |
| JPS6020754A (en) * | 1983-06-03 | 1985-02-02 | ベ−・ベ−・ツエ−・アクチエンゲゼルシヤフト・ブラウン・ボヴエリ・ウント・コンパニイ | Slip ring for electric device and method of producing same |
-
1985
- 1985-03-25 JP JP5855785A patent/JPS61218084A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52111362U (en) * | 1976-02-19 | 1977-08-24 | ||
| JPS597335A (en) * | 1982-06-22 | 1984-01-14 | トムソン−セエスエフ | Optically integrated modulation device independent of polarized state of incident light |
| JPS6020754A (en) * | 1983-06-03 | 1985-02-02 | ベ−・ベ−・ツエ−・アクチエンゲゼルシヤフト・ブラウン・ボヴエリ・ウント・コンパニイ | Slip ring for electric device and method of producing same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05832B2 (en) | 1993-01-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |