JP2002075102A - Electrical contact-point material - Google Patents
Electrical contact-point materialInfo
- Publication number
- JP2002075102A JP2002075102A JP2000254859A JP2000254859A JP2002075102A JP 2002075102 A JP2002075102 A JP 2002075102A JP 2000254859 A JP2000254859 A JP 2000254859A JP 2000254859 A JP2000254859 A JP 2000254859A JP 2002075102 A JP2002075102 A JP 2002075102A
- Authority
- JP
- Japan
- Prior art keywords
- contact
- electrical contact
- contact material
- oxide film
- point material
- 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.)
- Withdrawn
Links
- 239000000463 material Substances 0.000 title claims abstract description 29
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000002041 carbon nanotube Substances 0.000 claims abstract description 13
- 229910021393 carbon nanotube Inorganic materials 0.000 claims abstract description 13
- 239000002245 particle Substances 0.000 claims abstract description 9
- 239000011230 binding agent Substances 0.000 claims abstract description 7
- 229920000642 polymer Polymers 0.000 claims abstract description 7
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 abstract description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 3
- 229920005989 resin Polymers 0.000 abstract description 3
- 239000011347 resin Substances 0.000 abstract description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 abstract 3
- HGAZMNJKRQFZKS-UHFFFAOYSA-N chloroethene;ethenyl acetate Chemical compound ClC=C.CC(=O)OC=C HGAZMNJKRQFZKS-UHFFFAOYSA-N 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000012046 mixed solvent Substances 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011491 glass wool Substances 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 102100033007 Carbonic anhydrase 14 Human genes 0.000 description 1
- 101150000715 DA18 gene Proteins 0.000 description 1
- 101000867862 Homo sapiens Carbonic anhydrase 14 Proteins 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 238000001241 arc-discharge method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000002071 nanotube Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/02—Contacts characterised by the material thereof
- H01H1/021—Composite material
- H01H1/027—Composite material containing carbon particles or fibres
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
- H01H2300/036—Application nanoparticles, e.g. nanotubes, integrated in switch components, e.g. contacts, the switch itself being clearly of a different scale, e.g. greater than nanoscale
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、スイッチやリレー
などの接点部分に用いられる電気接点材料、特に微小電
流を切り換える接点材料に適した電気接点材料に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric contact material used for a contact portion such as a switch or a relay, and more particularly to an electric contact material suitable for a contact material for switching a minute current.
【０００２】[0002]
【従来の技術】従来、スイッチやリレーなどの接点部分
に用いられる電気接点材料として、導電性にすぐれた金
属あるいは金や銀などの貴金属が多く用いられている。
これらの金属は、スイッチやリレーの接点部分にメッキ
したり貼り付けるなどの方法により固着され、接点を保
護し電流の導通性をよくするために使用されている。こ
のような電気接点材料を接点として長く使用している
と、動作電流がミリアンペア以上の比較的大きな電流で
ある場合は、接点がオン時の接触抵抗（オン抵抗）の値
は小さくて安定しているのに対し、動作電流がマイクロ
アンペアレンジの電流である場合は、接触抵抗値が大き
く不安定になり、接点の信頼性が極端に低下する傾向が
ある。2. Description of the Related Art Conventionally, as an electrical contact material used for a contact portion such as a switch or a relay, a metal having excellent conductivity or a noble metal such as gold or silver is often used.
These metals are fixed to a contact portion of a switch or a relay by plating or affixing, and are used for protecting the contact and improving current conductivity. If such an electrical contact material is used for a long time as a contact, if the operating current is a relatively large current of milliamperes or more, the value of the contact resistance (on resistance) when the contact is on is small and stable. On the other hand, when the operating current is a current in the microamp range, the contact resistance value becomes largely unstable, and the reliability of the contact tends to be extremely reduced.
【０００３】この現象の主な原因は、接点に使用されて
いる金属表面に酸化膜が形成されるためであるが、比較
的酸化膜が形成されにくい金接点のスイッチやリレーで
も、例えば亜硫酸ガスが存在する雰囲気中で使用してい
ると接点表面に硫化物が付着し、接触抵抗が大きくなり
やがて接触不良や腐食破損が進行することがよく知られ
ている。この接点における接触抵抗の増大や接触不良
は、動作電流が小さいほどのその影響が大きいこともま
たよく知られている。[0003] The main cause of this phenomenon is that an oxide film is formed on the metal surface used for the contact. Even a switch or relay having a gold contact where an oxide film is relatively difficult to form, for example, sulfur dioxide gas It is well known that sulfides adhere to the contact surface when used in an atmosphere in which contact is present, increasing the contact resistance and eventually causing poor contact and corrosion damage. It is also well known that the increase in the contact resistance and the poor contact at the contact have a greater effect as the operating current is smaller.
【０００４】[0004]
【発明が解決しようとする課題】このような金属材料を
使用した接点では、使用環境の雰囲気状態によっても進
行度が異なるが、使用期間に比例して接点表面に酸化膜
や雰囲気ガスの化合物膜が徐々に形成され、接点の接触
状態を劣化させるという問題がある。従来は、接点にお
ける接触不良を防止するためにスイッチやリレーを密閉
構造にして酸素や腐食性ガスとの接触を遮断したり、一
定期間毎に取り替えたり、あるいは定期点検毎に劣化度
をチェックして、交換の必要があると認めた場合に取り
替えるなどの方法が採られている。In a contact using such a metal material, the degree of progress varies depending on the atmospheric conditions of the use environment, but an oxide film or a compound film of an atmospheric gas is formed on the contact surface in proportion to the use period. Are gradually formed, and there is a problem that the contact state of the contact is deteriorated. Conventionally, in order to prevent contact failure at the contacts, switches and relays are sealed to prevent contact with oxygen and corrosive gas, replaced at regular intervals, or checked for deterioration at regular inspections. In such a case, if it is deemed necessary to replace it, it is replaced.
【０００５】しかしながら、スイッチやリレーを密閉構
造にした場合、部品そのものが非常に高価になることや
形状が大きくなると装置内に収容仕切れない場合もでて
くるという問題がある。また、取り替える場合にはその
作業のためにプラント運転を一定期間停止しなければな
らないことや交換費用が高価になるという問題がある。
本発明は、このような事情に鑑みてなされたものであっ
て、特に微小電流に対しても長期間接触抵抗が安定して
使用できる電気接点材料を提供することを目的とする。[0005] However, when the switches and relays have a sealed structure, there is a problem that the parts themselves become very expensive, and if the parts are large in size, they may not be able to be housed in the apparatus. In addition, when replacing, there is a problem that the plant operation must be stopped for a certain period of time for the work, and replacement cost becomes high.
The present invention has been made in view of such circumstances, and an object of the present invention is to provide an electrical contact material that can be used with a stable contact resistance for a long period of time, even for a very small current.
【０００６】[0006]
【課題を解決するための手段】上記の目的を達成するた
め、本発明の電気接点材料は、導電性粒子とバインダ用
ポリマーを混合処理して生成される電気接点材料におい
て、導電性粒子がカーボンナノチューブであることを特
徴とするものである。本発明の電気接点材料は上記の構
成を用いることにより、酸化膜や腐食膜を形成せず、微
小電流に対しても安定な接触状態を保持することができ
る。In order to achieve the above object, an electric contact material according to the present invention is an electric contact material produced by mixing conductive particles and a binder polymer, wherein the conductive particles are made of carbon. It is characterized by being a nanotube. By using the above structure, the electrical contact material of the present invention does not form an oxide film or a corrosion film, and can maintain a stable contact state even with a minute current.
【０００７】[0007]
【発明の実施の形態】本発明による電気接点材料の実施
例を以下に説明する。本発明の電気接点材料は下記に説
明するようなバインダー用ポリマーと、カーボンナノチ
ューブと、トルエン、キシレン、メチルエチルケトンか
らなる混合溶剤とを混合し、下記に示す条件によって混
練、加熱、加圧することにより導電性ペースト状態で生
成される。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the electric contact material according to the present invention will be described below. The electric contact material of the present invention is obtained by mixing a polymer for a binder as described below, a carbon nanotube, and a mixed solvent composed of toluene, xylene, and methyl ethyl ketone, and kneading under the following conditions. It is produced in a paste state.
【０００８】前記バインダー用ポリマーとしては、アク
リル系樹脂、ポリエステル系樹脂、ポリウレタン系樹脂
または塩酢ビ系樹脂が用いられる。また、前記カーボン
ナノチューブは、図１に示す流通式固定床反応器を用い
て生成される。本流通式固定床反応器は、内径８ｃｍ、
長さ３０ｃｍなる石英製の反応管１と、これを囲んで加
熱するための電気炉４と、反応管１内の反応ガスを排出
するためのバルブ５から構成されると共に、前記反応管
１の中央付近には触媒２とその上下にグラスウール３が
それぞれ充填されている。As the binder polymer, an acrylic resin, a polyester resin, a polyurethane resin or a polyvinyl chloride resin is used. Further, the carbon nanotubes are produced using the flow-type fixed bed reactor shown in FIG. This flow-type fixed bed reactor has an inner diameter of 8 cm,
The reactor comprises a quartz reaction tube 1 having a length of 30 cm, an electric furnace 4 surrounding the reaction tube 1 for heating, and a valve 5 for discharging a reaction gas in the reaction tube 1. Near the center, a catalyst 2 and glass wool 3 above and below it are filled.
【０００９】前記反応管１にｗｔ％で各５０％づつのＮ
ｉとＳｉＯ２からなる触媒を充填し、流量１Ｌ／ｍｉｎ
の水素ガスを供給し、５００℃で１ｈｒ還元した後、体
積比で２：１のＨ２ガスとＣＯ２ガスからなる混合ガス
を流量７．５Ｌ／ｍｉｎで導入し、５００℃で６ｈｒ反
応させた後、同反応管内を窒素で置換して室温まで冷却
することにより、カーボンナノチューブが生成される。
なお、アーク放電法、レーザー蒸発法、化学気相成長
法、熱分解法などの公知のカーボンナノチューブ生成法
によって生成されたカーボンナノチューブも本電気接点
材料の導電性粒子として用いることができる。In the reaction tube 1, 50% by weight of N
i and a catalyst composed of SiO 2 were filled, and the flow rate was 1 L / min.
Is supplied at a temperature of 500 ° C. for 1 hour, a mixed gas consisting of H 2 gas and CO 2 gas at a volume ratio of 2: 1 is introduced at a flow rate of 7.5 L / min, and the mixture is reacted at 500 ° C. for 6 hours. After that, the inside of the reaction tube is replaced with nitrogen and cooled to room temperature, thereby generating carbon nanotubes.
Note that carbon nanotubes generated by a known carbon nanotube generation method such as an arc discharge method, a laser evaporation method, a chemical vapor deposition method, and a thermal decomposition method can also be used as the conductive particles of the electric contact material.
【００１０】上記の方法で得られたカーボンナノチュー
ブと、バインダー用ポリマーとして塩酢ビ樹脂と、前記
混合溶剤とを重量比で２５：２５：５０の割合で混合
し、さらに分割剤、可塑剤および酸化防止剤を適宜加え
た後、ボールミルで４０分間混合すると、体積固有抵抗
値がほぼ０．１Ω・ｃｍのペースト状態の電気接点材料
が生成される。この電気接点材料は非常に微小なカーボ
ンナノチューブを導電材として使用しているので、接点
同士の接触性がよく、また空気中に放置されていても酸
化膜が形成されず、微小電流に対しても安定した接触抵
抗を維持することができる。[0010] The carbon nanotubes obtained by the above method, the polyvinyl chloride resin as a binder polymer, and the mixed solvent are mixed at a weight ratio of 25:25:50. After the antioxidant is appropriately added, the mixture is mixed in a ball mill for 40 minutes to produce a paste-form electrical contact material having a volume resistivity of approximately 0.1 Ω · cm. Since this electrical contact material uses very small carbon nanotubes as the conductive material, the contact between the contacts is good, and an oxide film is not formed even when left in the air. Also, stable contact resistance can be maintained.
【００１１】この電気接点材料は次に示すような方法で
リレーやスイッチの接点部分に固着され接点として用い
られる。図２は矢印方向に移動してオンオフ動作をする
リレーの可動片６に、本電気接点材料を使用した接点７
が固着されている状態を示したもので、図３は接点７を
可動片６上に形成するための枠体を備えた治具８の斜視
図を示したものである。この治具８を図に示すように可
動片６の上に置き、ペースト状の電気接点材料を治具８
の深さ０．３〜０．５ｍｍ程度の枠体内に埋め込み、余
分の電気接点材料を除去した後、加熱して混合溶媒中の
揮発分を除去する。これにより電気接点材料は可動片６
上に接点として固着されるので、治具８を取り除く。The electric contact material is fixed to the contact portion of a relay or a switch in the following manner and used as a contact. FIG. 2 shows a contact 7 using the present electric contact material for a movable piece 6 of a relay which moves on and off by moving in the direction of the arrow.
FIG. 3 is a perspective view of a jig 8 provided with a frame for forming the contact 7 on the movable piece 6. The jig 8 is placed on the movable piece 6 as shown in FIG.
Embedded in a frame having a depth of about 0.3 to 0.5 mm to remove excess electrical contact material, and then heat to remove volatile components in the mixed solvent. As a result, the electric contact material becomes the movable piece 6.
The jig 8 is removed because it is fixed as a contact on the top.
【００１２】なお、予め可動片６の接点側表面を表面処
理により荒らしておくことにより、接点７をより強固に
可動片６に固着させることができる。また、枠体を複数
個繋がった形状の治具を用いることにより、一度に複数
個の可動片６に電気接点材料を埋め込み、上記と同様の
方法で接点の固着作業を行うことができ、それによって
作業効率を上げることができる。By previously roughening the contact-side surface of the movable piece 6 by surface treatment, the contact 7 can be more firmly fixed to the movable piece 6. Further, by using a jig having a shape in which a plurality of frames are connected, the electric contact material can be embedded in the plurality of movable pieces 6 at a time, and the operation of fixing the contacts can be performed in the same manner as described above. Work efficiency can be improved.
【００１３】図４はロータリスイッチの接点にこの電気
接点材料が使用された状態を示したものである。図４
（ａ）は複数個の接点１０が固着されているセラミック
ス等の絶縁性の基盤９の上面図であり、図４（ｂ）はそ
のＡ−Ａ断面図を示したものである。前記基盤９には予
め導電性端子１１が埋め込まれており、電気接点材料を
埋め込んで形成された接点１０と電気的に接続されてい
る。FIG. 4 shows a state in which this electrical contact material is used for a contact of a rotary switch. FIG.
4A is a top view of an insulating base 9 made of ceramic or the like to which a plurality of contacts 10 are fixed, and FIG. 4B is a cross-sectional view taken along line AA. A conductive terminal 11 is embedded in the base 9 in advance, and is electrically connected to a contact 10 formed by embedding an electric contact material.
【００１４】以上は、ペースト状の電気接点材料を直接
スイッチやリレーに埋め込み、接点として使用した例を
示したものであるが、このペースト状の電気接点材料を
予め成形型に注入してシート状あるいは円形状などの目
的とする接点に適した形に成形し、熱処理により接点用
部品として作成しておき、スイッチやリレーなどの可動
片に導電性接着材を用いて接点を接着することもでき
る。The above is an example in which a paste-like electric contact material is directly embedded in a switch or a relay and used as a contact. Alternatively, it can be molded into a shape suitable for the intended contact, such as a circle, and made as a contact part by heat treatment, and the contact can be bonded to a movable piece such as a switch or relay using a conductive adhesive. .
【００１５】本発明は導電性粒子にカーボンナノチュー
ブを使用することにより、酸化膜の形成を防止し、微小
電流に対しても接触抵抗を安定に保持することを特徴と
するしており、カーボンナノチューブ、バインダー用ポ
リマー、混合溶剤の混合比率については本実施例に限定
されるものではない。The present invention is characterized in that the use of carbon nanotubes as conductive particles prevents the formation of an oxide film and stably maintains the contact resistance even with a small current. The mixing ratio of the binder polymer and the mixed solvent is not limited to this embodiment.
【００１６】[0016]
【発明の効果】本発明の電気接点材料は導電性粒子とし
てカーボンナノチューブを使用しているので、接触面に
酸化膜が生成されず、接触抵抗の変化が少なく、耐環境
性に優れ、長時間安定して使用することができる。この
電気接点材料は酸化されないので、過酷な環境中に曝し
て使用することができ、キーボードを始めとして従来の
金属接点では使用できない分野にも用いることができ
る。According to the electric contact material of the present invention, since carbon nanotubes are used as the conductive particles, no oxide film is formed on the contact surface, the contact resistance does not change much, the environment resistance is excellent, and the electric contact material has a long life. Can be used stably. Since this electrical contact material is not oxidized, it can be used by exposing it to a harsh environment, and can be used in keyboards and other fields where conventional metal contacts cannot be used.
【図１】本発明に係わるカーボンナノチューブを製造す
る流通式固定床反応器の構成図である。FIG. 1 is a configuration diagram of a flow-type fixed-bed reactor for producing carbon nanotubes according to the present invention.
【図２】本発明に係わるリレーの構成図である。FIG. 2 is a configuration diagram of a relay according to the present invention.
【図３】本発明に係わる治具の斜視図である。FIG. 3 is a perspective view of a jig according to the present invention.
【図４】本発明に係わるロータリスイッチの基盤の上面
図（ａ）とそのＡ−Ａ断面図（ｂ）である。FIG. 4 is a top view (a) of a base of the rotary switch according to the present invention and a sectional view (A) of FIG.
１…反応管 ２…触媒 ３…グラスウール ４…電気炉 ５…バルブ ６…可動片 ７、１０…接点 ８…治具 ９…基盤 １１…導電性端子 DESCRIPTION OF SYMBOLS 1 ... Reaction tube 2 ... Catalyst 3 ... Glass wool 4 ... Electric furnace 5 ... Valve 6 ... Movable piece 7, 10 ... Contact 8 ... Jig 9 ... Base 11 ... Conductive terminal
───────────────────────────────────────────────────── フロントページの続き (72)発明者 堀内 宣利 京都市中京区西ノ京桑原町１番地 株式会 社島津製作所内 Ｆターム(参考） 5G050 AA07 AA60 BA04 BA08 CA14 CA16 DA01 DA02 EA06 EA09 EA20 5G301 DA18 DA42 DA53 DA59 DD01 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Norito Horiuchi 1 Fukui term in Shimadzu Corporation, Nishinokyo Kuwaharacho, Nakagyo-ku, Kyoto 5G050 AA07 AA60 BA04 BA08 CA14 CA16 DA01 DA02 EA06 EA09 EA20 5G301 DA18 DA42 DA53 DA59 DD01
Claims (1)
理して生成される電気接点材料において、導電性粒子が
カーボンナノチューブであることを特徴とする電気接点
材料。1. An electric contact material produced by mixing a conductive particle and a binder polymer, wherein the conductive particles are carbon nanotubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000254859A JP2002075102A (en) | 2000-08-25 | 2000-08-25 | Electrical contact-point material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000254859A JP2002075102A (en) | 2000-08-25 | 2000-08-25 | Electrical contact-point material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002075102A true JP2002075102A (en) | 2002-03-15 |
Family
ID=18743736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000254859A Withdrawn JP2002075102A (en) | 2000-08-25 | 2000-08-25 | Electrical contact-point material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002075102A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1256856A2 (en) * | 2001-05-11 | 2002-11-13 | Seiko Instruments Inc. | Composite main plate structure and electronic timepiece using the same |
| WO2003079375A1 (en) * | 2002-03-18 | 2003-09-25 | Atofina Research | Conductive polyolefins with good mechanical properties |
| JP2004040844A (en) * | 2002-06-28 | 2004-02-05 | Shinano Kenshi Co Ltd | Commutator and rotary electric machine using it |
| WO2004053893A1 (en) * | 2002-11-28 | 2004-06-24 | Shinano Kenshi Kabushiki Kaisha | Electric contact member |
| JP2005006479A (en) * | 2003-06-16 | 2005-01-06 | Matsushita Electric Ind Co Ltd | Sliding contact material |
| EP1538643A2 (en) * | 2003-12-01 | 2005-06-08 | Fuji Xerox Co., Ltd. | Electrical member, electrical device, and method of manufacturing the electrical member and electrical device |
| KR20200029131A (en) * | 2018-09-10 | 2020-03-18 | 김상경 | Power window switch contact structure using nano carbon fabric |
-
2000
- 2000-08-25 JP JP2000254859A patent/JP2002075102A/en not_active Withdrawn
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1256856A3 (en) * | 2001-05-11 | 2004-04-21 | Seiko Instruments Inc. | Composite main plate structure and electronic timepiece using the same |
| EP1256856A2 (en) * | 2001-05-11 | 2002-11-13 | Seiko Instruments Inc. | Composite main plate structure and electronic timepiece using the same |
| WO2003079375A1 (en) * | 2002-03-18 | 2003-09-25 | Atofina Research | Conductive polyolefins with good mechanical properties |
| EP1349179A1 (en) * | 2002-03-18 | 2003-10-01 | ATOFINA Research | Conductive polyolefins with good mechanical properties |
| EP2028662A3 (en) * | 2002-03-18 | 2010-07-21 | Total Petrochemicals Research Feluy | Conductive polyolefins with good mechanical properties |
| CN1320555C (en) * | 2002-03-18 | 2007-06-06 | 阿托菲纳研究公司 | Conductive polyolefins with good mechanical properties |
| JP2004040844A (en) * | 2002-06-28 | 2004-02-05 | Shinano Kenshi Co Ltd | Commutator and rotary electric machine using it |
| CN1327454C (en) * | 2002-11-28 | 2007-07-18 | 信浓绢糸株式会社 | Electric contact member |
| WO2004053893A1 (en) * | 2002-11-28 | 2004-06-24 | Shinano Kenshi Kabushiki Kaisha | Electric contact member |
| US7202586B2 (en) | 2002-11-28 | 2007-04-10 | Shinano Kenshi Kabushiki Kaisha | Electrical contact member |
| JP2005006479A (en) * | 2003-06-16 | 2005-01-06 | Matsushita Electric Ind Co Ltd | Sliding contact material |
| JP2005235728A (en) * | 2003-12-01 | 2005-09-02 | Fuji Xerox Co Ltd | Electrical component, electrical apparatus, and their manufacturing method |
| EP1538643A3 (en) * | 2003-12-01 | 2007-11-21 | Fuji Xerox Co., Ltd. | Electrical member, electrical device, and method of manufacturing the electrical member and electrical device |
| EP1538643A2 (en) * | 2003-12-01 | 2005-06-08 | Fuji Xerox Co., Ltd. | Electrical member, electrical device, and method of manufacturing the electrical member and electrical device |
| KR20200029131A (en) * | 2018-09-10 | 2020-03-18 | 김상경 | Power window switch contact structure using nano carbon fabric |
| KR102101996B1 (en) * | 2018-09-10 | 2020-04-20 | 김상경 | Power window switch contact structure using nano carbon fabric |
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