JPH08161954A - Electromagnetic relay - Google Patents
Electromagnetic relayInfo
- Publication number
- JPH08161954A JPH08161954A JP6305276A JP30527694A JPH08161954A JP H08161954 A JPH08161954 A JP H08161954A JP 6305276 A JP6305276 A JP 6305276A JP 30527694 A JP30527694 A JP 30527694A JP H08161954 A JPH08161954 A JP H08161954A
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- Prior art keywords
- contact
- electromagnetic relay
- oxygen concentration
- contact resistance
- gas
- Prior art date
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は密閉構造の電磁リレーに
関し、特に密閉される電気接点と内部気体の組み合わせ
を改良した電磁リレーに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic relay having a sealed structure, and more particularly to an electromagnetic relay having an improved combination of sealed electrical contacts and internal gas.
【０００２】[0002]
【従来の技術】従来の密閉構造を有する電磁リレー、特
に高分子材を用いて封止される電磁リレーにおいては、
接点開閉動作に基づく高温状態のために炭素粒子を生成
し、この生成炭素粒子による接点接触不良がリレー寿命
を左右している。2. Description of the Related Art In a conventional electromagnetic relay having a closed structure, particularly an electromagnetic relay sealed with a polymer material,
Carbon particles are generated due to the high temperature state based on the contact opening / closing operation, and contact failure due to the generated carbon particles affects the life of the relay.
【０００３】すなわち、かかる電磁リレーの高分子材か
ら発生される有機ガスは、密閉構造であるために外部に
放出されず、リレー内部に維持される。その結果、これ
らの有機ガスが接点表面に吸着すると、接点開閉（電流
断続）動作による発生アークに伴い、接点表面上の有機
ガスは炭素粒子化される。この生成された炭素粒子はア
ーク継続時間を増大させ、さらに炭素粒子の生成を促進
させるので、ついには接点間の炭素粒子介在により、接
点接触不良に至る。That is, the organic gas generated from the polymer material of such an electromagnetic relay is not released to the outside because of the hermetically sealed structure, but is maintained inside the relay. As a result, when these organic gases are adsorbed on the contact surface, the organic gas on the contact surface is turned into carbon particles due to the arc generated by the contact opening / closing (intermitting current) operation. The generated carbon particles increase the arc duration time and further promote the generation of carbon particles. Eventually, the contact of the carbon particles between the contacts leads to poor contact.
【０００４】このような問題は、一般に接点活性化と呼
ばれ、高分子封止型電磁リレーの寿命を決定付ける要因
の一つである。[0004] Such a problem is generally called contact activation and is one of the factors that determine the life of a polymer-sealed electromagnetic relay.
【０００５】従来、このような接点活性化を抑制するた
めに、種々の手法が提案されているが、その一つに、特
開平５−２９０７０３号公報にも記載されているよう
に、密封型のリレー内部を酸素濃度２０％以上の複合ガ
スに制御することにより、接点表面に吸着した有機ガス
を完全燃焼させ、ブラックパウダーの生成を抑制する技
術が知られている。Conventionally, various methods have been proposed to suppress such contact activation. One of the methods is disclosed in Japanese Patent Application Laid-Open No. 5-290703. A technology is known in which the inside of the relay is controlled to a composite gas having an oxygen concentration of 20% or more, whereby the organic gas adsorbed on the contact surface is completely burned to suppress the generation of black powder.
【０００６】[0006]
【発明が解決しようとする課題】上述した従来の高分子
封止型の電磁リレーは、高分子材から発生する有機ガス
のために、生成炭素粒子による接点の接触不良の問題が
あり、これを解決するために、リレー内部を２０％以上
の酸素濃度にしてブラックパウダーの発生を防ぐ技術が
提案されている。The above-mentioned conventional polymer-sealed electromagnetic relay has a problem of contact failure due to carbon particles generated due to the organic gas generated from the polymer material. In order to solve the problem, a technique has been proposed in which the oxygen concentration in the relay is set to 20% or more to prevent the generation of black powder.
【０００７】しかしながら、かかる技術では、電気接点
材とリレー内酸素濃度の関係が明確でないため、電気接
点材の種類に応じた最適のリレー内酸素濃度が不明確で
あり、しかもリレー内複合ガスの酸素以外の残部ガスの
種類によっては、酸素によるブラックパウダーの生成抑
制効果が低下するという欠点がある。However, in such a technique, since the relationship between the electrical contact material and the oxygen concentration in the relay is not clear, the optimal oxygen concentration in the relay according to the type of the electrical contact material is unclear, and the composite gas in the relay is not clear. Depending on the type of residual gas other than oxygen, there is a disadvantage that the effect of suppressing the generation of black powder by oxygen is reduced.
【０００８】本発明の目的は、かかる電気接点材に応じ
て効率よく炭素粒子の生成を抑制し、それにより接点接
触抵抗の安定化を図ることのできる電磁リレーを提供す
ることにある。An object of the present invention is to provide an electromagnetic relay capable of efficiently suppressing the formation of carbon particles in accordance with the electric contact material and thereby stabilizing the contact resistance of the contact.
【０００９】[0009]
【課題を解決するための手段】本発明は、電気接点を有
する密閉構造型の電磁リレーにおいて、前記電気接点を
Ａｇ合金材で形成し、内部気体を２１％以上、７２％以
下の酸素濃度にするとともに、残りの内部気体を窒素も
しくはヘリウム等の不活性ガスとして構成される。According to the present invention, there is provided a closed structure type electromagnetic relay having an electric contact, wherein the electric contact is formed of an Ag alloy material, and the internal gas is reduced to an oxygen concentration of 21% or more and 72% or less. At the same time, the remaining internal gas is constituted as an inert gas such as nitrogen or helium.
【００１０】特に、かかるＡｇ合金材は、ＡｇＣｄＯ，
ＡｇＳｎＯ2 ，ＡｇＳｎＯ2 Ｉｎ2Ｏ3 ，ＡｕＡｇ，Ａ
ｇＰｄのいずれかを用いる。[0010] In particular, such Ag alloy materials are AgCdO,
AgSnO 2 , AgSnO 2 In 2 O 3 , AuAg, A
Use any of gPd.
【００１１】また、本発明は、電気接点を有する密閉構
造型の電磁リレーにおいて、前記電気接点をＡｇ合金材
で形成し、内部気体を４０％以上７２％以下の酸素濃度
にするとともに、残りの内部気体を窒素もしくはヘリウ
ム等の不活性ガスとして構成される。Further, according to the present invention, in a closed structure type electromagnetic relay having an electric contact, the electric contact is formed of an Ag alloy material, and the internal gas has an oxygen concentration of 40% or more and 72% or less, and the remaining The internal gas is constituted by an inert gas such as nitrogen or helium.
【００１２】特に、ここで用いるＡｇ合金材は、ＡｇＮ
ｉ，ＡｇＳｎＯ2 Ｉｎ2 Ｏ3 ＣｄＯのいずれかを用い
る。Particularly, the Ag alloy material used here is AgN.
i, Any of AgSnO 2 In 2 O 3 CdO is used.
【００１３】[0013]
【実施例】次に、本発明の実施例について図面を参照し
て説明する。図１は本発明の第一の実施例を説明するた
めのＡｇＮｉ電気接点を用いたときの接触抵抗変化特性
図である。図１に示すように、本実施例は密閉構造型の
電磁リレーの電気接点としてＡｇＮｉ（１０ｗｔ％）銀
合金を用い、内部気体としての酸素の濃度を変化させ且
つその他の残部気体として不活性ガスである窒素の量を
変化させたものであり、ここではそのときのＡｇＮｉ電
気接点駆動回数と接点接触抵抗との関係を表わしてい
る。Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a contact resistance change characteristic diagram when an AgNi electrical contact is used for explaining a first embodiment of the present invention. As shown in FIG. 1, this embodiment uses an AgNi (10 wt%) silver alloy as an electric contact of an electromagnetic relay having a closed structure, changes the concentration of oxygen as an internal gas, and uses an inert gas as the remaining gas. Here, the relationship between the number of times of driving the AgNi electrical contacts and the contact resistance at that time is shown.
【００１４】この接点接触抵抗の実際の測定にあたって
は、まずサンプルとして密閉型電磁リレー内部に酸素，
窒素および有機ガスとしてのベンゼンを封入する。な
お、このベンゼンは、高分子封止型電磁リレーの生成炭
素粒子による接点接触不良の代表的な有機ガスであり、
その濃度は１〜２％に維持する。In actually measuring the contact resistance of the contact, first, as a sample, oxygen was introduced into the sealed electromagnetic relay.
Enclose benzene as nitrogen and organic gas. In addition, this benzene is a representative organic gas of contact failure due to carbon particles generated by the polymer sealed electromagnetic relay,
Its concentration is maintained at 1-2%.
【００１５】以下、内部気体としての酸素濃度を０％、
２１％、４０％、７２％のように変化させ、それぞれの
駆動回数と接点接触抵抗とを測定する。当然のことなが
ら、かかる酸素濃度に対して、残部ガスである不活性ガ
スとしての窒素の量も対応させて変化させる。Hereinafter, the oxygen concentration as the internal gas is set to 0%,
It is changed to 21%, 40%, 72%, and the number of times of driving and the contact resistance of each contact are measured. As a matter of course, the amount of nitrogen as the inert gas which is the balance gas is also changed corresponding to the oxygen concentration.
【００１６】また、それぞれの測定の付帯的条件として
は、ブレークアークのテストの場合、接続される負荷と
して抵抗負荷を用い、供給電圧および接点電流はそれぞ
れ２４Ｖ（ＤＣ），３Ａとし、さらに接点を切替える周
波数を１０Ｈｚ（５０％デューティ）に設定する。As an incidental condition of each measurement, in the case of a break arc test, a resistive load is used as a connected load, a supply voltage and a contact current are 24 V (DC) and 3 A, respectively, and a contact is used. The switching frequency is set to 10 Hz (50% duty).
【００１７】上述したサンプルＡｇＮｉ（１０ｗｔ％）
銀合金を用い、駆動回数と接点接触抵抗とを測定する
と、酸素濃度０％のとき及び酸素濃度２１％のときで
は、駆動回数に対する接触抵抗の変化は大差なく、酸素
の効果は酸素濃度４０％以上で現われる。すなわち、駆
動回数１万回前後まで接触抵抗は約１０ｍΩと安定して
いる。The above sample AgNi (10 wt%)
When the number of times of driving and the contact contact resistance were measured using a silver alloy, there was no great difference in the contact resistance with respect to the number of times of driving when the oxygen concentration was 0% and the oxygen concentration was 21%, and the effect of oxygen was 40%. Appears above. That is, the contact resistance is stable at about 10 mΩ until the number of times of driving is about 10,000.
【００１８】一方、この酸素濃度の上限については、７
２％程度あれば十分である。この値は、酸素濃度がこれ
以上多すぎると、金属部品の酸化やプラスチック部品の
変質等を持たらせるために、制限される必要がある。On the other hand, the upper limit of the oxygen concentration is 7
About 2% is sufficient. This value needs to be limited if the oxygen concentration is too high, the metal parts may be oxidized or the plastic parts may be altered.
【００１９】例えば、酸素濃度が０％のときと、酸素濃
度が７２％のときとで、ブレークアークにより電気接点
もしくは電気接点の周囲に形成される炭素による接触抵
抗の変化を測定すると、酸素濃度が７２％のときには、
分析結果等でほとんど実用上問題がなくなる。For example, when the change in the contact resistance due to the electric contact or the carbon formed around the electric contact by the break arc is measured when the oxygen concentration is 0% and when the oxygen concentration is 72%, Is 72%
Almost no practical problem is found in the analysis results and the like.
【００２０】このように、本実施例によれば、ＡｇＮｉ
銀合金の電気接点に対しては、酸素濃度を４０％以上７
２％以下とすることにより、接点接触抵抗の安定化を実
現することができる。As described above, according to this embodiment, AgNi
For silver alloy electrical contacts, increase the oxygen concentration to 40% or more.
By setting it to 2% or less, stabilization of the contact resistance of the contact can be realized.
【００２１】図２は本発明の第二の実施例を説明するた
めのＡｇＣｄＯ電気接点を用いたときの接触抵抗変化特
性図である。図２に示すように、本実施例は電気接点と
してＡｇＣｄＯ（１２ｗｔ％）銀合金を用い、その他は
上述した第一の実施例と同様の条件により、接点接触抵
抗の変化を測定する。本実施例の場合、酸素濃度２１％
以上で駆動回数１万回前後まで接触抵抗は約１０ｍΩと
安定している。すなわち、酸素効果が現われるのは、酸
素濃度２１％以上にしたときである。FIG. 2 is a graph showing a contact resistance change characteristic when an AgCdO electric contact is used for explaining a second embodiment of the present invention. As shown in FIG. 2, in this embodiment, AgCdO (12 wt%) silver alloy was used as the electrical contact, and the change in contact contact resistance was measured under the same conditions as in the above-described first embodiment. In the case of this embodiment, the oxygen concentration is 21%
As a result, the contact resistance is stable at about 10 mΩ up to about 10,000 times of driving. That is, the oxygen effect appears when the oxygen concentration is 21% or more.
【００２２】図３は本発明の第三の実施例を説明するた
めのＡｇＳｎＯ2 電気接点を用いたときの接触抵抗変化
特性図である。図３に示すように、本実施例は電気接点
としてＡｇＳｎＯ2 （９ｗｔ％）銀合金を用い、その他
は上述した第一の実施例と同様の条件により、接点接触
抵抗の変化を測定する。本実施例の場合も、酸素濃度２
１％以上で酸素効果が現われ、駆動回数１万回前後まで
接触抵抗は約１０ｍΩと安定している。FIG. 3 is a graph showing contact resistance change characteristics when an AgSnO 2 electrical contact is used for explaining a third embodiment of the present invention. As shown in FIG. 3, this embodiment uses a AgSnO 2 (9 wt%) silver alloy as the electric contact, and measures the change in the contact resistance of the contact under the same conditions as the above-described first embodiment. Also in the case of this embodiment, the oxygen concentration 2
The oxygen effect appears at 1% or more, and the contact resistance is stable at about 10 mΩ up to about 10,000 times of driving.
【００２３】図４は本発明の第四の実施例を説明するた
めのＡｇＳｎＯ2 Ｉｎ2 Ｏ3 電気接点を用いたときの接
触抵抗変化特性図である。図４に示すように、本実施例
は電気接点としてＡｇＳｎＯ2 （８ｗｔ％）Ｉｎ2 Ｏ3
（２ｗｔ％）銀合金を用い、その他は上述した第一の実
施例と同様の条件により、接点接触抵抗の変化を測定す
る。本実施例も前述した第二，第三の実施例と同様、酸
素濃度２１％以上で酸素効果が現われている。FIG. 4 is a graph showing a contact resistance change characteristic when an AgSnO 2 In 2 O 3 electrical contact is used for explaining a fourth embodiment of the present invention. As shown in FIG. 4, this embodiment uses AgSnO 2 (8 wt%) In 2 O 3 as an electrical contact.
The change in contact resistance is measured under the same conditions as in the above-described first embodiment except that (2 wt%) silver alloy is used. In this embodiment as well, as in the second and third embodiments described above, the oxygen effect appears when the oxygen concentration is 21% or more.
【００２４】図５は本発明の第五の実施例を説明するた
めのＡｇＳｎＯ2 Ｉｎ2 Ｏ3 ＣｄＯ電気接点を用いたと
きの接触抵抗変化特性図である。図５に示すように、本
実施例は電気接点としてＡｇＳｎＯ2 （５ｗｔ％）Ｉｎ
2 Ｏ3 （２ｗｔ％）ＣｄＯ（０．５ｗｔ％）銀合金を用
い、その他は上述した第一の実施例と同様の条件によ
り、接点接触抵抗の変化を測定する。本実施例の場合
は、前述した第一の実施例と同様、酸素濃度４０％以上
で酸素効果が現われている。FIG. 5 is a graph showing a change in contact resistance when an AgSnO 2 In 2 O 3 CdO electric contact is used for explaining a fifth embodiment of the present invention. As shown in FIG. 5, this embodiment uses AgSnO 2 (5 wt%) In as an electric contact.
The change in the contact resistance of the contact is measured under the same conditions as in the first embodiment except that a 2 O 3 (2 wt%) CdO (0.5 wt%) silver alloy is used. In the case of the present embodiment, an oxygen effect appears at an oxygen concentration of 40% or more, as in the first embodiment described above.
【００２５】図６は本発明の第六の実施例を説明するた
めのＡｕＡｇ電気接点を用いたときの接触抵抗変化特性
図である。図６に示すように、本実施例は電気接点とし
てＡｕＡｇ（１０ｗｔ％）銀合金を用い、その他は上述
した第一の実施例と同様の条件により、接点接触抵抗の
変化を測定する。本実施例の場合、前述した第二乃至第
四の実施例と同様、酸素濃度２１％以上で酸素効果が現
われている。FIG. 6 is a contact resistance change characteristic diagram when an AuAg electric contact is used for explaining a sixth embodiment of the present invention. As shown in FIG. 6, this embodiment uses a AuAg (10 wt%) silver alloy as an electric contact, and measures the change in contact contact resistance under the same conditions as in the first embodiment except for the above. In the case of the present embodiment, the oxygen effect appears at an oxygen concentration of 21% or more, as in the above-described second to fourth embodiments.
【００２６】図７は本発明の第七の実施例を説明するた
めのＡｇＰｄ電気接点を用いたときの接触抵抗変化特性
図である。図７に示すように、本実施例は電気接点とし
てＡｇＰｄ（６０ｗｔ％）銀合金を用い、その他は上述
した第一の実施例と同様の条件により、接点接触抵抗の
変化を測定する。本実施例の場合、前述した第二乃至第
四の実施例および第六の実施例と同様、酸素濃度２１％
以上で酸素効果が現われている。FIG. 7 is a contact resistance change characteristic diagram when an AgPd electrical contact is used for explaining the seventh embodiment of the present invention. As shown in FIG. 7, this embodiment uses a AgPd (60 wt%) silver alloy as the electrical contact, and measures the change in the contact resistance of the contact under the same conditions as in the above-described first embodiment. In the case of this embodiment, the oxygen concentration is 21% as in the above-described second to fourth embodiments and the sixth embodiment.
The oxygen effect appears above.
【００２７】上述したように、いくつかの実施例につい
て説明したが、これらの他にもＡｕ／ＡｕＡｇ等の異種
対向接点ついても同様の結果が得られる。As described above, although some embodiments have been described, similar results can be obtained for other types of opposing contacts such as Au / AuAg.
【００２８】また、上述した実施例における有機ガス濃
度は１〜２％のオーダーとしたが、実際の密閉型電磁リ
レーにおける内部の有機ガス濃度はかかる濃度よりも十
分低いため、各電気接点材に応じた適正酸素濃度により
接点接触の安定化を実現することができる。Although the organic gas concentration in the above-described embodiment is on the order of 1 to 2%, the organic gas concentration inside the actual closed electromagnetic relay is sufficiently lower than the above concentration. Stability of contact contact can be realized by the appropriate appropriate oxygen concentration.
【００２９】[0029]
【発明の効果】以上説明したように、本発明の電磁リレ
ーは、電気接点をＡｇ合金材で形成し、内部気体を２１
％以上もしくは４０％以上７２％以下の酸素濃度にする
とともに、残りの内部気体を窒素もしくはヘリウム等の
不活性ガスとすることにより、効率よく炭素粒子の生成
を抑制することができ、接点接触抵抗を安定化すること
ができるという効果がある。As described above, in the electromagnetic relay of the present invention, the electric contact is formed of an Ag alloy material and the internal gas is reduced to 21.
% Or 40% or more and 72% or less and the remaining internal gas is an inert gas such as nitrogen or helium, so that the production of carbon particles can be suppressed efficiently, and the contact contact resistance can be reduced. Can be stabilized.
【図１】本発明の第一の実施例を説明するためのＡｇＮ
ｉ電気接点を用いたときの接触抵抗変化特性図である。FIG. 1 is an AgN for explaining a first embodiment of the present invention.
It is a contact resistance change characteristic figure at the time of using i electrical contact.
【図２】本発明の第二の実施例を説明するためのＡｇＣ
ｄＯ電気接点を用いたときの接触抵抗変化特性図であ
る。FIG. 2 shows AgC for explaining a second embodiment of the present invention.
It is a contact resistance change characteristic view when using a dO electrical contact.
【図３】本発明の第三の実施例を説明するためのＡｇＳ
ｎＯ2 電気接点を用いたときの接触抵抗変化特性図であ
る。FIG. 3 is a diagram illustrating a third embodiment of the present invention.
a contact resistance variation characteristic diagram when using nO 2 electrical contacts.
【図４】本発明の第四の実施例を説明するためのＡｇＳ
ｎＯ2 Ｉｎ2 Ｏ3 電気接点を用いたときの接触抵抗変化
特性図である。FIG. 4 is a diagram illustrating a fourth embodiment of the present invention.
FIG. 4 is a diagram showing a contact resistance change characteristic when an nO 2 In 2 O 3 electrical contact is used.
【図５】本発明の第五の実施例を説明するためのＡｇＳ
ｎＯ2 Ｉｎ2 Ｏ3 ＣｄＯ電気接点を用いたときの接触抵
抗変化特性図である。FIG. 5 is AgS for explaining a fifth embodiment of the present invention.
a contact resistance variation characteristic diagram when using nO 2 In 2 O 3 CdO electrical contact.
【図６】本発明の第六の実施例を説明するためのＡｕＡ
ｇ電気接点を用いたときの接触抵抗変化特性図である。FIG. 6 shows AuA for explaining a sixth embodiment of the present invention.
It is a contact resistance change characteristic view when using a g electrical contact.
【図７】本発明の第七の実施例を説明するためのＡｇＰ
ｄ電気接点を用いたときの接触抵抗変化特性図である。FIG. 7 is a graph showing a structure of AgP for explaining a seventh embodiment of the present invention.
It is a contact resistance change characteristic figure at the time of using d electrical contact.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 井手 立身 東京都港区芝五丁目７番１号 日本電気株 式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Ritsumi Ide 5-7-1, Shiba, Minato-ku, Tokyo Inside NEC Corporation
Claims (4)
ーにおいて、前記電気接点をＡｇ合金材で形成し、内部
気体を２１％以上７２％以下の酸素濃度にするととも
に、残りの内部気体を窒素もしくはヘリウム等の不活性
ガスとすることを特徴とする電磁リレー。1. An electromagnetic relay of a closed structure having an electric contact, wherein said electric contact is made of an Ag alloy material, the internal gas is made to have an oxygen concentration of 21% or more and 72% or less, and the remaining internal gas is made of nitrogen. Alternatively, an electromagnetic relay characterized by using an inert gas such as helium.
は、ＡｇＣｄＯ，ＡｇＳｎＯ2 ，ＡｇＳｎＯ2 Ｉｎ2 Ｏ
3 ，ＡｕＡｇ，ＡｇＰｄのいずれかを用いた請求項１記
載の電磁リレー。2. The Ag alloy material as the electrical contact is AgCdO, AgSnO 2 , AgSnO 2 In 2 O.
The electromagnetic relay according to claim 1, wherein any one of 3 , AuAg, and AgPd is used.
ーにおいて、前記電気接点をＡｇ合金材で形成し、内部
気体を４０％以上７２％以下の酸素濃度にするととも
に、残りの内部気体を窒素もしくはヘリウム等の不活性
ガスとすることを特徴とする電磁リレー。3. An electromagnetic relay of a closed structure having an electric contact, wherein said electric contact is formed of an Ag alloy material, the internal gas is made to have an oxygen concentration of 40% or more and 72% or less, and the remaining internal gas is made of nitrogen. Alternatively, an electromagnetic relay characterized by using an inert gas such as helium.
は、ＡｇＮｉ，ＡｇＳｎＯ2 Ｉｎ2 Ｏ3 ＣｄＯのいずれ
かを用いた請求項３記載の電磁リレー。4. The electromagnetic relay according to claim 3, wherein said Ag alloy material as said electrical contact is made of one of AgNi and AgSnO 2 In 2 O 3 CdO.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6305276A JP2636762B2 (en) | 1994-12-09 | 1994-12-09 | Electromagnetic relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6305276A JP2636762B2 (en) | 1994-12-09 | 1994-12-09 | Electromagnetic relay |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08161954A true JPH08161954A (en) | 1996-06-21 |
| JP2636762B2 JP2636762B2 (en) | 1997-07-30 |
Family
ID=17943156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6305276A Expired - Fee Related JP2636762B2 (en) | 1994-12-09 | 1994-12-09 | Electromagnetic relay |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2636762B2 (en) |
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|---|---|---|---|---|
| WO2001004368A1 (en) * | 1999-07-07 | 2001-01-18 | Tanaka Kikinzoku Kogyo K.K. | Electric contact material for relay to be aboard automobile and relay to be aboard automobile using the same |
| WO2008018516A1 (en) * | 2006-08-10 | 2008-02-14 | Ubukata Industries Co., Ltd. | Thermally reactive switch |
| WO2008018515A1 (en) * | 2006-08-10 | 2008-02-14 | Ubukata Industries Co., Ltd. | Thermally reactive switch |
| WO2009098735A1 (en) * | 2008-02-08 | 2009-08-13 | Ubukata Industries Co., Ltd. | Thermally-actuated switch |
| JP5001278B2 (en) * | 2006-08-10 | 2012-08-15 | 株式会社生方製作所 | Thermally sensitive switch |
| CN108408763A (en) * | 2018-02-13 | 2018-08-17 | 浙江大学 | It is a kind of be co-doped with niobium, indium nano tin-oxide powder preparation and application process |
-
1994
- 1994-12-09 JP JP6305276A patent/JP2636762B2/en not_active Expired - Fee Related
Cited By (14)
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|---|---|---|---|---|
| US6791045B1 (en) | 1999-07-07 | 2004-09-14 | Tanaka Kikinzoku Kogyo K.K. | Shielded-type automotive relay controlling a magnet clutch load of a vehicle air-conditioner |
| WO2001004368A1 (en) * | 1999-07-07 | 2001-01-18 | Tanaka Kikinzoku Kogyo K.K. | Electric contact material for relay to be aboard automobile and relay to be aboard automobile using the same |
| JP5001278B2 (en) * | 2006-08-10 | 2012-08-15 | 株式会社生方製作所 | Thermally sensitive switch |
| WO2008018516A1 (en) * | 2006-08-10 | 2008-02-14 | Ubukata Industries Co., Ltd. | Thermally reactive switch |
| WO2008018515A1 (en) * | 2006-08-10 | 2008-02-14 | Ubukata Industries Co., Ltd. | Thermally reactive switch |
| US8902037B2 (en) | 2006-08-10 | 2014-12-02 | Ubukata Industries Co., Ltd. | Thermally responsive switch |
| US8902038B2 (en) | 2006-08-10 | 2014-12-02 | Ubukata Industries Co., Ltd. | Thermally responsive switch |
| JP5001279B2 (en) * | 2006-08-10 | 2012-08-15 | 株式会社生方製作所 | Thermally sensitive switch |
| JP5001383B2 (en) * | 2008-02-08 | 2012-08-15 | 株式会社生方製作所 | Thermally sensitive switch |
| US8717140B2 (en) | 2008-02-08 | 2014-05-06 | Ubukata Industries Co., Ltd. | Thermally responsive switch |
| CN101990694A (en) * | 2008-02-08 | 2011-03-23 | 株式会社生方制作所 | Thermally-actuated switch |
| WO2009098735A1 (en) * | 2008-02-08 | 2009-08-13 | Ubukata Industries Co., Ltd. | Thermally-actuated switch |
| CN108408763A (en) * | 2018-02-13 | 2018-08-17 | 浙江大学 | It is a kind of be co-doped with niobium, indium nano tin-oxide powder preparation and application process |
| CN108408763B (en) * | 2018-02-13 | 2019-12-06 | 浙江大学 | preparation and application method of niobium and indium co-doped nano tin oxide powder |
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| Publication number | Publication date |
|---|---|
| JP2636762B2 (en) | 1997-07-30 |
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