JPH0229631Y2

JPH0229631Y2 -

Info

Publication number: JPH0229631Y2
Application number: JP1982126935U
Authority: JP
Priority date: 1982-08-24
Filing date: 1982-08-24
Publication date: 1990-08-09
Also published as: JPS5931721U

Description

【考案の詳細な説明】本考案は導電液体接点スイツチ、特に、その接
点構成に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a conductive liquid contact switch, and more particularly to a contact configuration thereof.

第１図は従来の不平衡磁気回路構成の導電液体
接点スイツチの縦断面図を示す。 FIG. 1 shows a longitudinal cross-sectional view of a conventional unbalanced magnetic circuit configuration conductive liquid contact switch.

同図において、密閉容器１０の上部には固定電
極１１，１２が封着され、また密閉容器１０の下
部には可動電極１３が封着されている。上記固定
電極１１，１２は磁性材より成るが、この固定電
極１１，１２には非磁性材より成る接点１４が付
設される。 In the figure, fixed electrodes 11 and 12 are sealed to the upper part of the closed container 10, and a movable electrode 13 is sealed to the lower part of the closed container 10. The fixed electrodes 11 and 12 are made of a magnetic material, and a contact 14 made of a non-magnetic material is attached to the fixed electrodes 11 and 12.

また、密閉容器１０の内部には可動子１５が備
えられ、この可動子１５の固定電極１１，１２側
端部には非磁性材より成る接触子１５ａが付設さ
れている。そして、この接触子１５ａは弾条１６
の力により、常に機械的に固定電極１２側の接点
１４に接触している。しかし、外部磁場により接
触子１５ａは固定電極１２側の接点１４から離
れ、固定電極１１側の接点１４と接触する。固定
電極１１，１２以外の、接点１４を含む密閉容器
１０内の部分は、導電液体１７に濡れていて接触
能力を上げており更に密閉容器１０の内部には高
圧水素等の雰囲気ガス１８が封じ込まれている。 Further, a movable element 15 is provided inside the closed container 10, and a contactor 15a made of a non-magnetic material is attached to an end of the movable element 15 on the side of the fixed electrodes 11 and 12. This contact 15a is connected to the bullet 16.
Due to this force, the contact 14 on the fixed electrode 12 side is always mechanically contacted. However, due to the external magnetic field, the contact 15a separates from the contact 14 on the fixed electrode 12 side and comes into contact with the contact 14 on the fixed electrode 11 side. The parts of the sealed container 10 that include the contacts 14, other than the fixed electrodes 11 and 12, are wetted with the conductive liquid 17 to increase the contact ability, and furthermore, an atmospheric gas 18 such as high-pressure hydrogen is sealed inside the sealed container 10. It's included.

第２図は第１図の従来の不平衡磁気回路構成の
導電液体接点スイツチの接点部の詳細を示したも
のである。同図に明らかなように可動子１５と接
触子１５ａの表面は同一平面内Ａ−A′にあるよ
うにされている。そのため、可動子１５と固定電
極１１との磁気間隙は接点１４の高さにより決め
られることとなる。したがつてこのような従来の
導電液体接点スイツチでは、可動子１５と固定電
極１１との磁気間隙を小さくするには接点１４の
高さを小さくしなければならなかつた。しかし、
そのように接点１４の高さを小さくした場合接触
部と水銀に不濡れ処理を施こした固定電極面とが
接近するため、接触部に発生した放電が固定電極
面に影響を及ぼし、したがつて、以上の従来技術
においては、導電液体接点スイツチを高感度化し
た場合接点開閉電力を大きくする事ができない欠
点が有つた。 FIG. 2 shows details of the contact portion of the conventional conductive liquid contact switch of FIG. 1 having an unbalanced magnetic circuit configuration. As is clear from the figure, the surfaces of the movable element 15 and the contact element 15a are arranged in the same plane A-A'. Therefore, the magnetic gap between the movable element 15 and the fixed electrode 11 is determined by the height of the contact 14. Therefore, in such a conventional conductive liquid contact switch, the height of the contact 14 had to be reduced in order to reduce the magnetic gap between the movable element 15 and the fixed electrode 11. but,
When the height of the contact point 14 is reduced in this way, the contact part and the fixed electrode surface that has been treated to make it mercury-proof come close to each other, so that the discharge generated at the contact part affects the fixed electrode surface. However, the above-mentioned conventional techniques have the disadvantage that when the conductive liquid contact switch is made highly sensitive, it is not possible to increase the contact opening/closing power.

本考案の目的は上記欠点を解消した導電液体接
点スイツチを提供するにある。 The object of the present invention is to provide a conductive liquid contact switch which eliminates the above-mentioned drawbacks.

本考案に係る導電液体接点スイツチは一個また
は複数個の固定電極と、上端部が前記固定電極の
少なくとも一個と一定の間隙を有して磁気的に対
向するように設けられた可動電極とを密閉容器に
封入した導電液体接点スイツチにおいて、前記可
動電極の上端部に非磁性材より成る接触子を設
け、且つ可動電極と非磁性材より成る接触子との
表面間に段差を設けて構成され、磁気間隙を小さ
くして高感度化されているにもかかわらず固定電
極に設けられた接点の接点高さを高くすることが
できるため、前記接触部と固定電極の接点との接
触部が固定電極の水銀不濡れ部より離れる事にな
り従つて接点開閉電力を大きくした導電液体接点
スイツチの設計が可能となる。 A conductive liquid contact switch according to the present invention seals one or more fixed electrodes and a movable electrode whose upper end is magnetically opposed to at least one of the fixed electrodes with a predetermined gap. A conductive liquid contact switch sealed in a container, wherein a contact made of a non-magnetic material is provided at the upper end of the movable electrode, and a step is provided between the surfaces of the movable electrode and the contact made of a non-magnetic material, Even though the magnetic gap is small and the sensitivity is increased, the contact height of the contact provided on the fixed electrode can be increased, so that the contact between the contact part and the contact of the fixed electrode is higher than that of the fixed electrode. Therefore, it is possible to design a conductive liquid contact switch with a large contact switching power.

次に本考案を図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.

第３図は本考案の導電液体接点スイツチの一実
施例の説明図であり、第３Ａ図は不動作時を、第
３Ｂ図は動作時を示す。前記した如く、一般に導
電液体接点スイツチにおいては、導電液体の接点
間の橋絡を防ぐため接点間隙を大きくしなければ
ならず、それに伴なつて磁気間隙も大きくなつて
感度が低下する。換言すれば、感度を高くするた
めに接点間隙を小さくすると導電液体による接点
間の橋絡が生じやすくなるという不都合がある。
本考案においてはそれを防ぐため、第３Ａ図に示
されるように、可動子２５と接触子２５ａの表面
間に段差Ｂが設けられる。この段差Ｂは、可動電
極の可動子２５表面を一方の固定電極２１方向に
突出させて設けられるものである。これにより、
接点間隙を小さくすることなく磁気間隙G₁が小
さくされる。また、これにより、第３Ｂ図に示さ
れるように、動作時の磁気間隙G₂も小さくなり、
接触子２５ａと接点２４との接触力が大きくな
る。 FIG. 3 is an explanatory view of one embodiment of the conductive liquid contact switch of the present invention, with FIG. 3A showing the non-operating state and FIG. 3B showing the operating state. As mentioned above, in general, in a conductive liquid contact switch, the contact gap must be increased in order to prevent bridging between the conductive liquid contacts, and as a result, the magnetic gap also increases, resulting in a decrease in sensitivity. In other words, if the gap between the contacts is made small in order to increase the sensitivity, there is a disadvantage that bridging between the contacts due to the conductive liquid is likely to occur.
In the present invention, in order to prevent this, a step B is provided between the surfaces of the movable element 25 and the contact element 25a, as shown in FIG. 3A. This step B is provided by causing the surface of the movable element 25 of the movable electrode to protrude in the direction of one of the fixed electrodes 21. This results in
The magnetic gap G ₁ is reduced without reducing the contact gap. This also reduces the magnetic gap _G2 during operation, as shown in Figure 3B.
The contact force between the contactor 25a and the contact point 24 increases.

以上の事は段差Ｂによりスイツチの感動・復旧
特性及びそれに伴なう接触特性が調整できる事を
示し、特性の内容によつては段差Ｂを負方向に変
化して、磁気間隙G₁，G₂を大きくする事も可能
である。 The above shows that the touch/recovery characteristics of the switch and the associated contact characteristics can be adjusted by the step B, and depending on the characteristics, the step B can be changed in the negative direction to increase the magnetic gaps G ₁ , G It is also possible to increase ₂ .

以上の様に本考案の導電液体接点スイツチによ
れば、接点間隙を小さくすることなく磁気間隙を
小さくすることができ、高感度であるにもかかわ
らず、大電力も制御できる。また、磁気間隙が小
さくされることにより、接触子と接点との接触力
が大きくなり、接触が安定化できる。 As described above, according to the conductive liquid contact switch of the present invention, the magnetic gap can be reduced without reducing the contact gap, and even though it is highly sensitive, it is also possible to control large amounts of power. Further, by reducing the magnetic gap, the contact force between the contactor and the contact point increases, and the contact can be stabilized.

[Brief explanation of drawings]

第１図は従来の不平衡磁気回路構成の導電液体
接点スイツチの縦断面図、第２図は第１図の接点
部の詳細断面図、第３Ａ，Ｂ図は本考案の実施例
の接点部の詳細断面図を示し、第３Ａ図は不動作
時の断面図、第３Ｂ図は動作時の断面図である。１０……密閉容器、１１，１２，２１，２２…
…固定電極、１３……可動電極、１４……接点、
１５，２５……可動子、１５ａ，２５ａ……接触
子、１６……弾条、１７……導電液体、１８……
雰囲気ガス。 Fig. 1 is a longitudinal cross-sectional view of a conventional conductive liquid contact switch with an unbalanced magnetic circuit configuration, Fig. 2 is a detailed cross-sectional view of the contact portion of Fig. 1, and Fig. 3A and B are the contact portion of an embodiment of the present invention. FIG. 3A is a sectional view when the device is not in operation, and FIG. 3B is a sectional view when it is in operation. 10... Airtight container, 11, 12, 21, 22...
... fixed electrode, 13 ... movable electrode, 14 ... contact,
15, 25... Mover, 15a, 25a... Contact, 16... Bullet, 17... Conductive liquid, 18...
atmosphere gas.

Claims

[Claims for Utility Model Registration] One or more fixed electrodes made of a magnetic material, and a movable device whose upper end is magnetically opposed to the make fixed electrode of the fixed electrodes with a certain gap therebetween. In the conductive liquid contact switch, the movable electrode is made of a magnetic material and has an upper end facing the make fixed electrode, and a non-magnetic contact provided at the upper end of the movable element. a contact element made of a material that contacts and opens an electrical contact on the make fixed electrode, and a surface of the movable element is protruded from a surface of the contact element toward the make fixed electrode, and a contact element is formed between the two surfaces. 1. A conductive liquid contact switch characterized in that a step is provided at the contactor which remains unchanged when the contactor contacts the electrical contact and whose height is smaller than the height of the electrical contact.