Explosion-proof valve sealing device for air tightness test of lithium battery box body

Abstract

The invention provides an explosion-proof valve sealing device for air tightness test of a lithium battery box body. The explosion-proof valve sealing device comprises a supporting piece and a sealing piece, the supporting piece comprises a supporting clamping base, an anti-explosion valve clamping groove extending into the supporting clamping base is formed in one side of the supporting clamping base, and two supporting plates which are located on the two sides of the anti-explosion valve clamping groove and oppositely arranged are fixed to the supporting clamping base; and the sealing piece comprises a fixing plate and a sealing plate, the fixing plate is located above the supporting clamping base, the two ends of the fixing plate are fixedly connected with the two supporting plates respectively, the sealing plate is located between the supporting clamping base and the fixing plate and is parallel to the supporting clamping base, a sealing groove is formed in the side, close to the anti-explosion valve clamping groove, of the sealing plate, a sealing gasket is attached to the inner wall of the sealing groove, and a pressing mechanism used for driving the sealing plate to move up and down is installed on the fixing plate. Through mutual cooperation of the mounting clamping seat, the sealing plate and the pressing mechanism, rapid sealing of the explosion-proof valve is achieved, the sealing effect is good, the pressure bearing capacity and the testing efficiency during testing are improved, and the testing accuracy is guaranteed.

Description

technical field [0001] The invention relates to the technical field of lithium batteries, in particular to an explosion-proof valve sealing device for air tightness testing of a lithium battery box. Background technique [0002] During the production process of the lithium battery box, it is necessary to test the air tightness of the lithium battery box to judge the waterproof and dustproof ability of the lithium battery box. During the inspection, it is necessary to inflate the inside of the box and test the internal pressure of the box, and then To achieve the purpose of testing the airtightness of the box, but an explosion-proof valve device is installed on one side of the lithium battery box, such as figure 1 As shown, there are many fine holes on the explosion-proof valve device, and the fine holes can communicate with the outside air. Therefore, when testing the air tightness of the box, it is necessary to effectively seal the explosion-proof valve to ensure the accura...

AI Technical Summary

Problems solved by technology

[0003] In the existing technology, it is generally sealed by wrapping adhesive tape and sealant for human use, which is time-consuming and laborious, which increases the labor intensity of workers, increases labor costs, and reduces test efficiency.

At the same time, if this method is used for sealing, the sealing effect is poor, and it cannot bear the high pressure during the test, which seriously affects the test effect

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