JPH0669279B2 - Electrical contact - Google Patents
Electrical contactInfo
- Publication number
- JPH0669279B2 JPH0669279B2 JP61037904A JP3790486A JPH0669279B2 JP H0669279 B2 JPH0669279 B2 JP H0669279B2 JP 61037904 A JP61037904 A JP 61037904A JP 3790486 A JP3790486 A JP 3790486A JP H0669279 B2 JPH0669279 B2 JP H0669279B2
- Authority
- JP
- Japan
- Prior art keywords
- brush
- present
- chemical
- commutator segment
- contact
- 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.)
- Expired - Lifetime
Links
- SVTBMSDMJJWYQN-UHFFFAOYSA-N 2-methylpentane-2,4-diol Chemical compound CC(O)CC(C)(C)O SVTBMSDMJJWYQN-UHFFFAOYSA-N 0.000 claims description 6
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 claims description 3
- 239000000126 substance Substances 0.000 description 28
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 14
- 229910052799 carbon Inorganic materials 0.000 description 14
- 230000000694 effects Effects 0.000 description 14
- 230000002159 abnormal effect Effects 0.000 description 11
- 239000000463 material Substances 0.000 description 10
- 238000003466 welding Methods 0.000 description 8
- 229910045601 alloy Inorganic materials 0.000 description 7
- 239000000956 alloy Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
- 125000000753 cycloalkyl group Chemical group 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- 238000010892 electric spark Methods 0.000 description 6
- 229910000510 noble metal Inorganic materials 0.000 description 6
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical group C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000013016 damping Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052763 palladium Inorganic materials 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- CKFGINPQOCXMAZ-UHFFFAOYSA-N methanediol Chemical compound OCO CKFGINPQOCXMAZ-UHFFFAOYSA-N 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- -1 polyfluoroethylene Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910017693 AgCuTi Inorganic materials 0.000 description 1
- 229910000897 Babbitt (metal) Inorganic materials 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- DMFGNRRURHSENX-UHFFFAOYSA-N beryllium copper Chemical compound [Be].[Cu] DMFGNRRURHSENX-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 229910021386 carbon form Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- IUYOGGFTLHZHEG-UHFFFAOYSA-N copper titanium Chemical compound [Ti].[Cu] IUYOGGFTLHZHEG-UHFFFAOYSA-N 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 235000019256 formaldehyde Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910021385 hard carbon Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000010303 mechanochemical reaction Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- MOFOBJHOKRNACT-UHFFFAOYSA-N nickel silver Chemical compound [Ni].[Ag] MOFOBJHOKRNACT-UHFFFAOYSA-N 0.000 description 1
- 239000010956 nickel silver Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229910000923 precious metal alloy Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Landscapes
- Contacts (AREA)
- Motor Or Generator Current Collectors (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、例えばテープレコーダー、ビデオテープレコ
ーダーなどのテープを駆動するために使用される小型モ
ータをはじめ、上下動接点、スライドスイッチ、リレ
ー、コネクターなどの電気接点に関するものである。Description: TECHNICAL FIELD The present invention relates to a vertical motor contact, a slide switch, a relay, a connector, etc., including a small motor used for driving a tape of a tape recorder, a video tape recorder, etc. Of the electrical contacts of.
従来の技術 接点開閉回数の最も多い小型モータの例で説明すると、
一般に小型モータにおけるブラシは、大きくわけて二種
類ある。一つは、弾性を有する導電材料、例えば銅・ベ
リリウム銅・銅チタン合金・リン青銅・洋白の薄板材あ
るいは線材に貴金属合金（例えば、Ａｕ，Ｐｄ，Ｐｔ，
Ａｇ，Ｃｕ等及びそれらの合金）をクラッド化、又は薄
板材、線材の一部にスポット溶接の手段によって接合し
た構造であり、もう一つは、前に述べた薄板材あるいは
線材の一部に焼結カーボンブラシ（例えば、カーボン、
Ａｇカーボン、Ｃｕカーボン、ＡｇＣｕカーボン、及び
それらの材料にＳｉＣ，ＭｏＳ２，Ｐｂ，エポキシ系樹
脂などを添加剤として配合したもの）を導電性接着剤、
スポット溶接、あるいはカシメ方式などの手段によって
形成されているが、これらのブラシを有する小型モータ
においては、コミュテータ回転時に、ブラシしゅう動部
が不必要に振動し、これによってブラシしゅう動部のコ
ミュテータ・セグメントに対する接触面に異常な溶着が
生じることと、火花発生に伴う黒化物（カーボン及びブ
ラシとコミュテータ・セグメント間で生ずるしゅう動摩
耗粉が混じり合ったもの）と言われる異常現象を促進す
る異物が生成されることがしばしば起こり問題となる。
小型モータのブラシの一例として、コミュテータ・セグ
メントにしゅう接するブラシしゅう動部がモータケース
の蓋などに設けられた支持手段により支持されているブ
ラシ基部と一体に成形されたものがある。その種のブラ
シとコミュテータ・セグメントとの接触状態を第４図に
示す。Conventional technology Explaining with an example of a small motor with the highest number of contacts,
Generally, there are two types of brushes in a small motor. One is a conductive material having elasticity such as copper, beryllium copper, copper titanium alloy, phosphor bronze, nickel silver thin plate material or wire material and precious metal alloy (for example, Au, Pd, Pt,
Ag, Cu, etc. and their alloys) are clad or joined to a part of a thin plate or wire by spot welding, and the other is a part of the thin plate or wire described above. Sintered carbon brush (eg carbon,
Ag carbon, Cu carbon, AgCu carbon, and those materials containing SiC, MoS 2 , Pb, epoxy resin, etc. as additives are conductive adhesives,
Although it is formed by means such as spot welding or caulking, in small motors with these brushes, the brush sliding part vibrates unnecessarily when the commutator rotates, which causes the commutator Abnormal welding occurs on the contact surface to the segment, and foreign matter that promotes an abnormal phenomenon called black matter (a mixture of carbon and sliding wear powder generated between the brush and the commutator segment) due to spark generation It often happens that it is generated, which is a problem.
As an example of a brush for a small motor, there is one in which a brush sliding portion that makes contact with a commutator segment is integrally formed with a brush base portion that is supported by a supporting means provided on a lid of a motor case. The contact state between such a brush and the commutator segment is shown in FIG.
第４図において、ブラシ支持手段１に支持されたブラシ
基部２から、折り曲げられたブラシしゅう動部３が伸び
ている。このブラシ基部２、ブラシしゅう動部それ自体
が弾性を有しコミュテータ・セグメント４に押圧された
状態で接触している。そして、この押圧力は、ブラシ基
部２とブラシしゅう動部３との折り曲げ角を適当に選ぶ
ことによって、必要な値にすることができる。また、コ
ミュテータ・セグメント４は、整流子基台５を介してモ
ータ回転軸６に固定され、モータの回転とともに回転す
る。In FIG. 4, a folded brush sliding portion 3 extends from a brush base portion 2 supported by a brush supporting means 1. The brush base portion 2 and the brush sliding portion itself have elasticity and are in contact with the commutator segment 4 in a pressed state. Then, this pressing force can be set to a required value by appropriately selecting the bending angle between the brush base portion 2 and the brush sliding portion 3. The commutator segment 4 is fixed to the motor rotating shaft 6 via the commutator base 5 and rotates with the rotation of the motor.
発明が解決しようとする問題点 このように、しゅう接するコミュテータ・セグメント４
とブラシしゅう動部３からは、整流時及び、接触点の断
続により電気火花が発生し、この電気火花の発生に伴っ
て電気ノイズや、コミュテータ・セグメント４、ブラシ
しゅう動部３に消耗や溶着が発生するなど、不都合な状
態が生じる。Problems to be Solved by the Invention As described above, the commutator segment 4 which is in contact with each other
An electric spark is generated from the brush sliding part 3 at the time of rectification and due to an intermittent contact point. With the generation of the electric spark, electrical noise, wear and welding on the commutator segment 4 and the brush sliding part 3 are caused. An inconvenient state occurs such as occurrence of.
例えば、コミュテータ・セグメント４と接触し始める位
置及び離れる位置（第４図のａ部）に溶着が生じると、
この溶着物がコミュテータ・セグメント４の表面を擦過
して損傷を与え、さらにこの擦過によって生じた切屑
が、互いに隣り合うコミュテータ・セグメント４の間の
ギャップ部（第４図のｂ部）に溜まり、そのためにコミ
ュテータ・セグメント相互間が導通され回転不安定にな
る。又例えば、消耗によりコミュテータ・セグメント表
面の面粗度が粗くなると、ブラシの振動の原因となり、
電気火花の発生を助長し、更に消耗を進行し、異常摩耗
などの原因となったり、電気ノイズや整流位置のズレな
どモータの性能そのものを低下してしまう。For example, when welding occurs at the position where the commutator segment 4 starts to contact and the position where the commutator segment 4 starts to separate (part a in FIG. 4)
This welded material rubs the surface of the commutator segment 4 to cause damage, and the chips generated by this rub are accumulated in the gap portion (b portion in FIG. 4) between the commutator segments 4 adjacent to each other, Therefore, the commutator and the segment are electrically connected to each other, and the rotation becomes unstable. Also, for example, if the surface roughness of the commutator segment surface becomes rough due to wear, it may cause vibration of the brush,
It promotes the generation of electric sparks, promotes further consumption, causes abnormal wear, and reduces the motor performance itself, such as electrical noise and deviation of the commutation position.
なお、前記ブラシしゅう動部３とコミュテータ・セグメ
ント４との接触面ａにおいて最もよく電気火花が発生す
る。もちろんしゅう接するコミュテータ・セグメント４
とブラシしゅう動部３には、電気火花を原因としない機
械的な摩耗も生じるのはいうまでもない。An electric spark is best generated at the contact surface a between the brush sliding part 3 and the commutator segment 4. Of course, commutator segment 4 touches
It goes without saying that the brush sliding part 3 also suffers mechanical wear that is not caused by electric sparks.
一般に、よく用いられるブラシしゅう動部３の材質は前
記のごとく貴金属合金あるいは焼結カーボンであり、コ
ミュテータ・セグメント４の材質は、Ａｕ，Ｐｄ，Ａｇ
等の貴金属合金、例えばＡｇＣｕ，ＡｇＣｄ，ＡｇＣｕ
Ｃｄ，ＡｇＣｕＴｉなどからなる。特に貴金属ブラシと
の組み合わせでは、いずれも、表面エネルギーが高く両
者がほぼ同様の材質であることから、しゅう接面で擦過
傷が発生し易い不利な組み合わせである。また、焼結カ
ーボンブラシとの組み合わせにおいても、貴金属合金ブ
ラシと較べてしゅう動抵抗は小さくなるといえども、ブ
ラシを構成する配合材料中には、ＳｉＯ２などの不純物
が少なからず混入しており、擦過傷の危険性はあり、又
貴金属合金ブラシの場合と同様に貴金属合金のカーボン
の場合は、しゅう接面で擦過傷が発生し易い不利な組み
合わせになる。第５図（ａ）の例は、これらの欠点の原
因となっている電気火花を、抑制する機械的手段を有し
ていない構造を示す。即ちブラシしゅう動部３に振動減
衰対策を何等講じていないものは、ブラシしゅう動部の
振動が大きく、火花の発生が多くなり、溶着、消耗が起
こり易い。第５図（ｂ）の例は、ブラシしゅう動部３に
振動減衰対策を講じた構成を示す。即ちブラシしゅう動
部３に、防振ゴム９を粘着剤８で貼り付けたものであ
り、常温においては振動吸収がよく、火花の発生をおさ
えることができる。しかし、使用上限温度の６０℃近く
においては粘着剤の粘性が著しく低下し、防振ゴム９の
しゅう動部３との接着力が減少し、振動吸収能力が低下
して火花の発生が多くなり、寿命の長い品質の優れたも
のは得難くなる。さらに第５図（ｃ）は、第５図（ｂ）
と同様にブラシしゅう動部３に振動減衰対策を講じた構
造の別の例を示す。即ちブラシしゅう動部３に防振シー
ト１２を基材１０の両面に粘着剤８を塗布した構成の接
着材１１で貼り付けたものであり、上記第５図（ｂ）の
例と比較すると、高温での粘着剤の粘性の低下が、ある
程度抑えられるものの不充分であり、高温での長寿命、
高品質を満足することは出来ない。Generally, the material of the brush sliding part 3 that is often used is a noble metal alloy or sintered carbon as described above, and the material of the commutator segment 4 is Au, Pd, Ag.
Noble metal alloys such as AgCu, AgCd, AgCu
It is made of Cd, AgCuTi, or the like. In particular, the combination with a noble metal brush is a disadvantageous combination in which the surface energy is high and the both are substantially the same material, and thus scratches are likely to occur on the contact surface. Even when it is used in combination with a sintered carbon brush, the sliding resistance is smaller than that of a noble metal alloy brush, but a large amount of impurities such as SiO 2 are mixed in the compound material forming the brush. There is a risk of scratches, and as with noble metal alloy brushes, noble metal alloy carbon forms an unfavorable combination where scratches easily occur on the contact surface. The example of FIG. 5 (a) shows a structure that does not have a mechanical means for suppressing the electric sparks that are the cause of these drawbacks. That is, in the case where no vibration damping measures are taken in the brush sliding part 3, the vibration of the brush sliding part is large, the number of sparks is increased, and welding and wear are likely to occur. The example of FIG. 5 (b) shows a structure in which the brush sliding portion 3 is provided with vibration damping measures. That is, the vibration-proof rubber 9 is attached to the brush sliding portion 3 with the adhesive 8, and the vibration absorption is good at room temperature and the generation of sparks can be suppressed. However, in the vicinity of the maximum use temperature of 60 ° C., the viscosity of the pressure-sensitive adhesive decreases remarkably, the adhesive strength of the anti-vibration rubber 9 with the sliding portion 3 decreases, the vibration absorption capacity decreases, and sparks increase. However, it is difficult to obtain a good product with a long life. Further, FIG. 5 (c) shows FIG. 5 (b).
Another example of a structure in which the brush sliding portion 3 is provided with vibration damping measures in the same manner as the above. That is, the vibration-proof sheet 12 is attached to the brush sliding portion 3 with the adhesive 11 having the structure in which the pressure sensitive adhesive 8 is applied to both sides of the base material 10. Compared with the example of FIG. 5 (b), Although the decrease in the viscosity of the adhesive at high temperature can be suppressed to some extent, it is insufficient, and the long life at high temperature,
High quality cannot be satisfied.
なお、この機器の使用雰囲気温度は、−１０℃〜＋６０
℃で使用するものが多い。The ambient temperature of this equipment is -10 ° C to +60.
Many are used at ℃.
本発明は、開閉接点構造の上下動スイッチ、リレー、あ
るいは、モータのブラシ・コミュテータ間、小型モータ
同様しゅう動接点構造を持つスライドスイッチ、コネク
ターなどのの電気接点寿命の短縮を防止するものであ
る。The present invention is intended to prevent shortening of the electrical contact life of an up / down switch having a switching contact structure, a relay, or between a brush commutator of a motor, a slide switch having a sliding contact structure like a small motor, and a connector. .
問題点を解決するための手段 前記問題点を解決するために、本発明は開閉接点構造の
上下動スイッチ、リレー、あるいは、しゅう動接点構造
のスライドスイッチ、コネクターなどの電気接点の接点
近傍がヘキサメチレングリコール（以下本発明の薬品と
略す）の雰囲気となるよう構成したものである。Means for Solving the Problems In order to solve the above problems, the present invention provides a hexagonal contact vicinity of an electric contact such as an up / down switch having a switching contact structure, a relay, or a slide switch having a sliding contact structure, and a connector. The atmosphere of methylene glycol (hereinafter abbreviated as the chemical of the present invention) is configured.
作用 小型モータの例で説明すると、これまでの文献や実験な
どでブラシしゅう動部とコミュテータ・セグメントの溶
着し易い状態、あるいは溶着や異常摩耗や導通不良の起
こり易い状態が解明されつつある。異常の起こり易い状
態は、ブラシしゅう動部とコミュテータ・セグメントが
しゅう動する部位の雰囲気か、またはコミュテータ・セ
グメント自体に不飽和環状炭化水素が存在したり、吸着
したりしている場合である。このとき黒化物（分解生成
物、又はメカノケミカル反応で出来た重合物であるカー
ボン様のもの、およびブラシとコミュテータ・セグメン
ト間で生ずるしゅう動摩耗粉が混じり合ったもの）と言
われる異常現象を促進する異物が生成する。Actions Explaining with an example of a small motor, the state in which the brush sliding part and the commutator segment are easily welded, or the state in which welding, abnormal wear, and conduction failure are likely to occur is being clarified in the literature and experiments so far. An abnormal state is likely to occur when the brush sliding part and the commutator segment slide in the atmosphere or when the commutator segment itself contains or adsorbs unsaturated cyclic hydrocarbons. At this time, an abnormal phenomenon called black matter (decomposition product, carbon-like polymer that is a polymer formed by mechanochemical reaction, and mixture of sliding wear powder generated between brush and commutator segment) is generated. Foreign matter that promotes is generated.
この異物は、不飽和環状炭化水素がしゅう動部とコミュ
テータ・セグメント間のアークによって燃焼するとき、
単位体積当たりのカーボン量が多く不完全燃焼すること
と、またその分子構造に起因するものであるが、生成カ
ーボンの結合状態が密となるため、硬質のカーボンがで
きるためと思われる。This foreign matter is generated when unsaturated cyclic hydrocarbons are burned by the arc between the sliding part and the commutator segment.
This is due to the fact that a large amount of carbon per unit volume results in incomplete combustion and the molecular structure thereof, but because the binding state of the produced carbon becomes dense, hard carbon can be formed.
また不飽和環状炭化水素以外の炭化水素の雰囲気、およ
びコミュテータ・セグメントへの吸着では、その分子構
造に起因するものであるが、生成するカーボンは軟質の
ものとなり、異常現象につながらぬ事が解明されてい
る。これらの現象をもとにして、微量の炭化水素の吸着
したコミュテータ・セグメントを用いて長期間の運転実
験を行った。この実験で、 １）高温・低湿の場合のコミュテータ・セグメントに異
常摩耗の発生する確率が高い。Also, in the adsorption of hydrocarbons other than unsaturated cyclic hydrocarbons, and adsorption to commutator segments, it is due to the molecular structure, but the carbon produced is soft, which does not lead to abnormal phenomena. Has been done. Based on these phenomena, a long-term operation experiment was conducted using a commutator segment in which a very small amount of hydrocarbon was adsorbed. In this experiment, 1) there is a high probability that abnormal wear will occur in the commutator segment in the case of high temperature and low humidity.
２）コミュテータ・セグメントに１０μｇ程度の不飽和
環状炭化水素の吸着がある場合、コミュテータ・セグメ
ントの異常が緩和され、小型モータの長寿命化がはかれ
る。（ただし、継続的に不飽和環状炭化水素の補給がな
い場合のデータである。）結果が得られた。2) When about 10 μg of unsaturated cyclic hydrocarbon is adsorbed on the commutator segment, the abnormality of the commutator segment is alleviated and the life of the small motor is extended. (However, this is the data when there is no continuous supplement of unsaturated cyclic hydrocarbon.) The results were obtained.
そこで、上記現象を考慮した結果、本発明の薬品を用い
ると、スチレンモノマーやトルエンなどの不飽和環状炭
化水素と異なりその分子構造の中に酸素を有しているた
めによく燃焼し、異常現象の一つである硬質の黒化物生
成に対して最も遠い存在となり、カーボン生成があって
も極めて軟質のものとなりブラシしゅう動部とコミュテ
ータ・セグメントのしゅう動抵抗を減ずることが出来
る。Therefore, as a result of considering the above phenomenon, when the chemical of the present invention is used, unlike unsaturated cyclic hydrocarbons such as styrene monomer and toluene, oxygen is contained in the molecular structure, so that the chemical often burns, causing an abnormal phenomenon. It is the most distant from the formation of hard black matter, which is one of the above, and becomes extremely soft even if carbon is formed, and it is possible to reduce the sliding resistance of the brush sliding part and the commutator segment.
また異常現象の発生する確率の高い高温・低湿において
も本発明の薬品の蒸気圧にみあった適当な雰囲気がケー
ス内にえられることと、本発明が有する水酸基により金
属表面に強力に吸着するので充分な効果を得ることが出
来る。また、本発明の薬品を配する電気接点は、空気の
流通の少ないほぼ密閉に近い構造であるか、その電気接
点が組み込まれる機器そのものが空気の流通の少ない構
造のものが好結果が得られる。Further, even at high temperature and low humidity where an abnormal phenomenon is highly likely to occur, an appropriate atmosphere corresponding to the vapor pressure of the chemical of the present invention can be obtained in the case, and the hydroxyl group of the present invention strongly adsorbs it on the metal surface. Therefore, a sufficient effect can be obtained. Further, the electrical contact for disposing the chemical of the present invention has a structure close to airtight with almost no air circulation, or the device itself in which the electrical contact is incorporated has a structure with little air circulation to obtain good results. .
本発明の薬品の吸着において、Ａｕ，Ｐｄ，Ｐｔ，Ａ
ｇ，等及びその合金の触媒作用の強い材料を用いた例え
ば、コミュテータ・セグメントおよびブラシは勿論のこ
と、Ｃｕなどで出来たブラシ、焼結カーボンブラシの表
面、およびそれ以外のモータを構成する金属部品の表面
へも吸着し、表面へ反応性の高いガス（スチレンモノマ
ー、トルエン等）が付着することを防止する。これは、
本発明の薬品が、例えばスチレンモノマー、トルエン等
のファンデアワールスの引力より吸着する有機ガスに比
べて水素結合を作り強力に吸着するためである。本発明
の薬品の物質名とその性状は、 分子式：ヘキサメチレングリコール ：C6H12(OH)2 吸水率：１０％（４０℃・９０％ＲＨ・１気圧）であ
る。In the adsorption of the chemical of the present invention, Au, Pd, Pt, A
For example, not only commutator segments and brushes, but also brushes made of Cu, the surface of sintered carbon brushes, and other metals that compose motors using materials with strong catalytic action such as g, etc. and their alloys. It also adsorbs to the surface of parts and prevents highly reactive gases (styrene monomer, toluene, etc.) from adhering to the surface. this is,
This is because the chemicals of the present invention form a hydrogen bond and are strongly adsorbed as compared with the organic gas adsorbed by the van der Waals attraction such as styrene monomer and toluene. Substance and Characterization of chemicals present invention, molecular formula: hexamethylene glycol: C 6 H 12 (OH) 2 water absorption: a 10% (40 ℃ · 90% RH · 1 atm).
前述の本発明の薬品は、小型モータにおいてはブラシ、
コミュテータ・セグメント表面へ吸着し、単分子膜を形
成するため、潤滑性も極めて向上し、接触部分の摩耗も
著しく減少する。The chemical of the present invention described above is a brush in a small motor,
Since it adsorbs to the surface of the commutator segment and forms a monomolecular film, the lubricity is greatly improved and the wear of the contact portion is significantly reduced.
また開閉接点構造の上下動スイッチ、リレー、あるい
は、しゅう動接点構造のスライドスイッチ、コネクター
などの電気接点においても同様な効果を発揮する。Further, the same effect is exerted also in an electric contact such as a vertical movement switch having a switching contact structure, a relay, or a slide switch having a sliding contact structure and a connector.
実施例 第１図、第２図および第３図は、それぞれ本発明を小型
モータに用いた際の一実施例を示したものである。ここ
で第４図のものと同一名称部分には同一符号を付してあ
る。図において、７は軸受メタル、１３はブラシ、１４
はブラシなどを保持するブラケット、１５はモータケー
ス下、１６は本発明の薬品を含浸させたフェルト、１７
はロータコア１８に巻装したマグネットワイヤー、１９
はモータケース２０の内面に固着したフィールドマグネ
ットである。第１図の実施例ではフェルト１６はブラケ
ット１４上のブラシしゅう動部３の近傍に配置されてお
り、また第２図の実施例ではブラシ基部２上にフェルト
１６を取り付けてあり、第３図の実施例ではブラシ１３
から離れたケース２０に装備している。Embodiment FIG. 1, FIG. 2 and FIG. 3 show an embodiment when the present invention is applied to a small motor. Here, parts having the same names as those in FIG. 4 are given the same reference numerals. In the figure, 7 is a bearing metal, 13 is a brush, and 14
Is a bracket for holding a brush or the like, 15 is a lower part of a motor case, 16 is a felt impregnated with the chemical of the present invention, 17
Is a magnet wire wound around the rotor core 18, 19
Is a field magnet fixed to the inner surface of the motor case 20. In the embodiment shown in FIG. 1, the felt 16 is arranged in the vicinity of the brush sliding portion 3 on the bracket 14, and in the embodiment shown in FIG. 2, the felt 16 is mounted on the brush base portion 2. In this embodiment, the brush 13
Equipped in a case 20 away from the.
また、いずれの実施例も、ケース内の雰囲気が本発明の
薬品による蒸気雰囲気になりブラシおよびコミュテータ
・セグメント表面に本発明の薬品が吸着する事を目的と
したものである。Further, in each of the embodiments, the atmosphere in the case becomes a vapor atmosphere due to the chemical of the present invention, and the chemical of the present invention is adsorbed on the surface of the brush and the commutator segment.
次に示す比較例と実施例について実験を行った。Experiments were conducted on the following comparative examples and examples.
比較例１）従来品 比較例２）スチレンモノマー雰囲気中でのテスト品 比較例３）トルエン雰囲気中でのテスト品 実施例１）本発明の本発明を１：１で混合したものの雰
囲気中でのテスト品 なお、本発明の薬品の成分に多少の不純物があっても、
本発明の薬品は、著しい効果を発揮する。Comparative Example 1) Conventional Product Comparative Example 2) Test Product in Styrene Monomer Atmosphere Comparative Example 3) Test Product in Toluene Atmosphere Example 1) In the atmosphere of the mixture of the present invention of 1: 1 Test product Even if there are some impurities in the chemical composition of the present invention,
The chemical | medical agent of this invention exhibits a remarkable effect.
テストに用いたモータを第３図で説明する。このモータ
は直流モータで、外径３０mm高さ２５mmの大きさで定格
出力０．１Ｗ、試験時の運転条件は、４．２ＶＤＣ、２
５ｍＡである。テストの結果は次表の通りであった。The motor used for the test will be described with reference to FIG. This motor is a DC motor with an outer diameter of 30 mm and a height of 25 mm and a rated output of 0.1 W. The operating conditions during the test are 4.2 VDC and 2.
It is 5 mA. The test results are shown in the table below.
このモータの空隙にポリエステルフェルト１６をポリフ
ルオロエチレン液で洗浄し脱脂したものに、本発明の薬
品を含浸させたものを設置したものは、本発明の薬品が
徐々に蒸発し著しい効果を得ることが出来た。前記ポリ
エステルフェルト１６は、その繊維の太さとみかけ比重
を変えることによって蒸発スピードのコントロールが可
能である。前記ポリエステルフェルト１６のかわりに連
続発泡のプラスチックまたはゴムのスポンジを用いても
著しい効果を得ることが出来た。また焼結されたポーラ
スなフィールドマグネット１９に本発明の薬品を含浸さ
せたものは、０．１ないし０．３ｇの保持力があり著し
い効果を得ることが出来た。 If the polyester felt 16 washed with a polyfluoroethylene liquid and degreased and impregnated with the chemical of the present invention is installed in the gap of this motor, the chemical of the present invention will gradually evaporate and a remarkable effect can be obtained. Was completed. The polyester felt 16 can control the evaporation speed by changing the thickness of the fibers and the apparent specific gravity. Even if a sponge of continuously foamed plastic or rubber was used instead of the polyester felt 16, a remarkable effect could be obtained. Further, the sintered porous field magnet 19 impregnated with the chemical of the present invention has a holding force of 0.1 to 0.3 g, and a remarkable effect can be obtained.
また、ポリエチレンなどの気体透過性のフィルムまたは
ケースに封入し小型モータ内に設置したものも本発明の
薬品を保持する力があり著しい効果を得ることが出来
た。Also, a gas-permeable film such as polyethylene or a case enclosed in a case and installed in a small motor has a force to hold the chemical of the present invention, and a remarkable effect can be obtained.
また本発明の薬品は常温で固体であるため、部品に含浸
するとき融点まで昇温する必要があるが同様な効果を有
する２−メチル−２，４−ペンタンジオールに溶解して
用いれば容易に含浸することが出来著しい効果を得るこ
とが出来た。Further, since the chemicals of the present invention are solid at room temperature, it is necessary to raise the temperature to the melting point when impregnating parts, but it is easy to use by dissolving them in 2-methyl-2,4-pentanediol having the same effect. Impregnation was possible and a remarkable effect could be obtained.
第６図は本発明の薬品を用いた小型モータの整流波形で
ある。FIG. 6 is a commutation waveform of a small motor using the chemical of the present invention.
（ａ）は６０℃、５％ＲＨ雰囲気中での従来品のテスト
前の整流波形、３００時間テスト後の比較例１の整流波
形 （ｂ）は不飽和環状炭化水素スチレンモノマー雰囲気中
での６０℃、５％ＲＨ雰囲気テスト前の整流波形及び１
００時間テスト後の比較例２の整流波形 （ｃ）は不飽和環状炭化水素（トルエン）をコミュテー
タ・セグメント表面に約１０μｇ吸着させた場合におけ
る６０℃、５％ＲＨ雰囲気テスト前の整流波形及び３０
０時間テスト後の比較例３の整流波形 （ｄ）は本発明の薬品雰囲気における６０℃、５％雰囲
気テスト前の整流波形及び１５００時間テスト後の実施
例１の整流波形 発明の効果 以上の説明から明らかなように本発明によれば、下記の
効果を奏する。(A) is a rectified waveform of a conventional product before the test in an atmosphere of 60 ° C. and 5% RH, and rectified waveform of Comparative Example 1 after a 300-hour test (b) is a rectified waveform of 60 in an unsaturated cyclic hydrocarbon styrene monomer atmosphere Rectification waveform and 1 before ℃, 5% RH atmosphere test
The rectified waveform (c) of Comparative Example 2 after the 00 hour test is the rectified waveform before the 5% RH atmosphere test at 60 ° C. when the unsaturated cyclic hydrocarbon (toluene) is adsorbed on the surface of the commutator segment in an amount of about 10 μg.
The rectified waveform (d) of Comparative Example 3 after the 0-hour test is the rectified waveform before the 5% atmosphere test at 60 ° C. in the chemical atmosphere of the present invention and the rectified waveform of the Example 1 after the 1500-hour test. As is apparent from the above, the present invention has the following effects.
１）本発明の薬品がしゅう動部表面へ吸着することによ
り、潤滑作用がはたらき、しゅう接面の異常摩耗や溶着
とそれによる擦過損傷を防止できる効果がある。1) By adsorbing the chemical of the present invention on the surface of the sliding portion, a lubricating action is exerted, and there is an effect that abnormal wear or welding of the sliding contact surface and fouling damage due to it can be prevented.
２）スチレンモノマーやトルエンなどのベンゼン環を有
する有機ガスがあっても、しゅう動部表面へ吸着した本
発明の薬品の皮膜で保護され、黒化物の生成も微少とな
り接点間の接触不良の発生を防止できる。また接触不良
を起こさないため、電気ノイズの発生も減少し、例えば
小型モータに用いた際には速度の安定化も図られ、結果
的には、１〜３０Ｖ程度の比較的低電圧用の小型モータ
が使用される機器のワウ・フラッターを低減する。2) Even if there is an organic gas having a benzene ring such as styrene monomer or toluene, it is protected by the film of the chemical of the present invention adsorbed on the surface of the sliding portion, the generation of black matter is also minute and contact failure between contacts occurs. Can be prevented. In addition, since contact failure does not occur, the occurrence of electrical noise is reduced, and when used in a small motor, for example, the speed can be stabilized, and as a result, a small size for a relatively low voltage of about 1 to 30 V is achieved. Reduces wow and flutter in equipment where motors are used.
３）本発明の薬品の潤滑作用により、例えば動作電圧：
１〜３０Ｖ、電流値：１００ｍＡ前後のマイクロモータ
を本発明の薬品の雰囲気で運転すると、電流値が５〜１
０％減少し、省エネルギー化がはかれる。3) Due to the lubricating action of the chemicals of the present invention, for example, operating voltage:
When a micromotor having a current value of 1 to 30 V and a current value of about 100 mA is operated in the chemical atmosphere of the present invention, the current value is 5 to 1
It will be reduced by 0% and energy saving will be achieved.
４）本発明の薬品がしゅう動により発生する振動を抑え
るダンピング効果を有し、１〜１０％の機械雑音の減少
を可能とする。4) The chemical agent of the present invention has a damping effect of suppressing the vibration generated by sliding, and enables reduction of mechanical noise of 1 to 10%.
５）本発明の薬品の吸湿性は、親水性を有する−ＯＨ基
と疎水性を有する−Ｃ−Ｃ−（炭素結合部）のバランス
が理想的であり４０℃・湿度９０％ＲＨの雰囲気中でも
吸水率は、２０％以下となり金属を腐食するほど湿潤す
ることなく湿潤効果の大きいものとなる。5) Regarding the hygroscopicity of the chemicals of the present invention, the ideal balance between the hydrophilic -OH group and the hydrophobic -CC- (carbon bond part) is achieved, and even in an atmosphere of 40 ° C and humidity of 90% RH. The water absorption rate is 20% or less, and the wetting effect is large without being so wet as to corrode the metal.
６）本発明の薬品を２−メチル−２，４−ペンタンジオ
ールに溶解した後用いる場合は部品への含浸が常温で可
能となり生産性の優れた効果持続時間の長い優れたもの
となる。6) When the chemical | medical agent of this invention is used after melt | dissolving in 2-methyl-2,4-pentanediol, it becomes possible to impregnate a part at normal temperature, it is excellent in productivity, and the effect is long-lasting.
第１図および第２図はそれぞれ本発明を小型モータに用
いた際の実施例の構成図、第３図は本発明の実施例のモ
ータの半断面図、第４図は一般的なブラシ、コミュテー
タの構成を示す図、第５図（ａ）〜（ｃ）はそれぞれ従
来例のブラシしゅう動部の代表的構成を示す図、第６図
（ａ）〜（ｄ）は本発明の小型モータの整流波形を示す
図である。 ３……コミュテータしゅう動部、４……コミュテータ・
セグメント、１６……フェルト、２０……モータケー
ス。1 and 2 are configuration diagrams of an embodiment when the present invention is applied to a small motor, FIG. 3 is a half sectional view of the motor of the embodiment of the present invention, FIG. 4 is a general brush, 5A to 5C are views showing the structure of a commutator, FIGS. 5A to 5C are views showing a typical structure of a conventional brush sliding portion, and FIGS. 6A to 6D are small motors of the present invention. It is a figure which shows the rectification waveform of. 3 …… Commutator sliding part, 4 …… Commutator ・
Segment, 16 ... Felt, 20 ... Motor case.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 吉田 茂 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (56)参考文献 特開 昭62−195091（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Shigeru Yoshida 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP-A-62-195091 (JP, A)
Claims (2)
グリコールを配したことを特徴とする電気接点。1. An electrical contact in which hexamethylene glycol is disposed in a case having a built-in contact.
−２，４−ペンタンジオールに溶解した後用いることを
特徴とする特許請求の範囲第１項記載の電気接点。2. The electrical contact according to claim 1, wherein hexamethylene glycol is used after being dissolved in 2-methyl-2,4-pentanediol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61037904A JPH0669279B2 (en) | 1986-02-21 | 1986-02-21 | Electrical contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61037904A JPH0669279B2 (en) | 1986-02-21 | 1986-02-21 | Electrical contact |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62196039A JPS62196039A (en) | 1987-08-29 |
| JPH0669279B2 true JPH0669279B2 (en) | 1994-08-31 |
Family
ID=12510530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61037904A Expired - Lifetime JPH0669279B2 (en) | 1986-02-21 | 1986-02-21 | Electrical contact |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0669279B2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6137909A (en) * | 1984-07-30 | 1986-02-22 | Nippon Steel Corp | Apparatus for removing deposit on throat of converter by cutting |
-
1986
- 1986-02-21 JP JP61037904A patent/JPH0669279B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62196039A (en) | 1987-08-29 |
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| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |