Self-locking liquid metal contact long-life relay and use method thereof
A liquid metal, long-life technology, applied in the direction of relays, electromagnetic relays, electromagnetic relay details, etc., can solve problems such as shortening the life of contacts, relay heating and burning, contact ablation, etc., to solve the problem of contact surface quality deterioration, Effect of improving service life and suppressing arc discharge
Active Publication Date: 2022-03-01
东莞市元则电器有限公司
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Problems solved by technology
[0002] The existing relay realizes the on-off of the high-voltage circuit through the contact and disconnection of the dynamic and static contacts. However, arc discharge will occur between the dynamic and static contacts during the on-off process, and the high-temperature arc will cause the contacts to be ablated. , causing permanent scars, shortening the life of the contacts, especially in frequent on-off conditions, it will also cause the relay to heat up and burn out, and the structural reliability is low
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[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, and the implementation scope of the present invention is not limited thereto.
[0025] like Figure 1 to Figure 7 As shown, a self-locking liquid metal contact long-life relay described in this embodiment includes a liquid tank 1, a tank cover 2, an insulating cover 3, two air bags 4 and two first pins 5; The liquid tank 1 has two accommodating tanks arranged at intervals; the tank cover 2 is fixedly installed on the liquid tank 1, and forms two metal liquid cavities filled with liquid metal with the two accommodating tanks; the insulating cover 3 It is fixedly installed on the tank cover 2, and an installation space is formed between the tank cover 2; the two airbags 4 are installed in the two liquid metal cavities in one-to-one correspondence; the two first pins 5 respectively wear They are arranged at both ends of the bottom of the ...
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The invention discloses a self-locking liquid metal contact long-life relay which comprises a liquid tank, a tank cover, an insulating cover, an air bag, a first pin, an air pump, an electromagnet, a magnetic contact assembly, a spring, a first connecting pipe, a breaking seat and a second connecting pipe. Two metal liquid cavities filled with liquid metal are formed by the tank cover and the liquid tank; the insulating cover is fixedly mounted on the tank cover; the air bag is arranged in the metal liquid cavity; the air pump is provided with a rodless cavity and a rod cavity; the rod cavity is filled with inert gas, and the rodless cavity is communicated with the air bag. The magnetic contact assembly is connected to the output end of the air pump. The two ends of the spring abut against the magnetic contact assembly and the air pump respectively. The breaking seat is provided with a breaking channel, the two ends of the first connecting pipe communicate with the molten metal cavity and the breaking channel correspondingly, and the two ends of the second connecting pipe communicate with the rod cavity and the breaking channel correspondingly. According to the invention, arc discharge can be greatly inhibited, permanent scars are effectively prevented from being formed on contacts, the service life of the relay is prolonged, and the structure is more reliable.
Description
technical field [0001] The invention relates to a self-locking liquid metal contact long-life relay. Background technique [0002] The existing relay realizes the on-off of the high-voltage circuit through the contact and disconnection of the dynamic and static contacts. However, arc discharge will occur between the dynamic and static contacts during the on-off process, and the high-temperature arc will cause the contacts to be ablated. , causing permanent scars, shortening the life of the contacts, especially in frequent on-off conditions, it will also cause the relay to heat up and burn out, and the structural reliability is low. Contents of the invention [0003] The object of the present invention is to overcome the above-mentioned shortcomings, and provide a self-locking liquid metal contact long-life relay. [0004] To achieve the above object, the specific scheme of the present invention is as follows: [0005] A self-locking liquid metal contact long-life relay, ...
Claims
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IPC IPC(8): H01H50/54
CPCH01H50/54
Inventor 吴坤
Owner 东莞市元则电器有限公司