A supercapacitor cover liquid filling mechanism

Abstract

The invention relates to the technical field of capacitor components, and discloses a supercapacitor cover liquid filling mechanism, which includes a liquid filling barrel, a cover body is fixedly installed at the bottom of the liquid adding barrel, and a plunger is slidably connected to the inside of the liquid adding barrel. The top of the plug is fixedly connected with a piston rod, and the top of the piston rod stretches out from the top of the liquid-filling barrel. The bottom of the plunger is fixedly connected with a return spring, and the bottom of the return spring is fixedly connected with the inner bottom of the liquid-filling barrel. In the present invention, by setting the plunger and the connection channel, when the plunger is docked with the liquid addition channel, the liquid injection function can be realized from the pressure relief hole to the connection channel, and when the plunger is connected with the pressure relief channel, the exhaust can be realized. The hole is exhausted to the pressure relief hole through the connecting channel to complete the pressure relief function, so that the liquid filling cover has both the liquid filling and automatic pressure relief functions, and an additional mechanism is added outside the supercapacitor casing to separate the casing itself due to the opening The hidden danger of weakness caused by the hole is eliminated, so that the explosion-proof safety performance of the capacitor shell is better.

Description

technical field [0001] The invention relates to the technical field of capacitor components, in particular to a supercapacitor cover liquid filling mechanism. Background technique [0002] Supercapacitor refers to a new type of energy storage device between traditional capacitors and rechargeable batteries. It not only has the characteristics of fast charging and discharging of capacitors, but also has the energy storage characteristics of batteries. Commonly used supercapacitors include a metal case with an open end, a core installed in the metal case, and a cover plate for sealing the open end of the metal case. In order to inject electrolyte into the metal case, usually on the surface of the cover plate There is a liquid injection hole on it. On the other hand, because the supercapacitor has the risk of explosion due to excessive internal pressure due to high temperature and overcharging during use, it needs to be equipped with a pressure relief hole. Therefore, the super...

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Problems solved by technology

[0003] In view of the deficiencies in the use of the existing supercapacitor cover plate proposed in the background technology, the present invention provides a supercapacitor cover plate liquid filling mechanism, which has the advantages of liquid filling and automatic pressure relief functions, and high safety performance, and solves the problem of Solved the problems raised in the above background technology

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