Explosion-proof valve sealing fixture for air tightness test of lithium battery pack

An air tightness test and explosion-proof valve technology, which is applied in the direction of using liquid/vacuum for liquid tightness measurement, etc., can solve the problems of increasing the labor intensity of workers, lowering the test efficiency, and increasing labor costs, and achieve the effect of sealing and pressing. , Improve the test efficiency, the effect of simple structure

Active Publication Date: 2021-07-30
HEFEI GUOXUAN HIGH TECH POWER ENERGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, it is generally blocked by wrapping adhesive tape and sealant with people, which is time-consuming and laborious, which increases the labor intensity of workers, increases labor costs, and lowers the test efficiency.
At the same time, if this method is used for sealing, the sealing effect is poor, and it cannot withstand the relatively high pressure during the test, which seriously affects the test effect

Method used

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  • Explosion-proof valve sealing fixture for air tightness test of lithium battery pack
  • Explosion-proof valve sealing fixture for air tightness test of lithium battery pack
  • Explosion-proof valve sealing fixture for air tightness test of lithium battery pack

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Embodiment Construction

[0019] like Figures 1 to 3 as shown, figure 1 It is a schematic diagram of the three-dimensional structure of an explosion-proof valve plugging fixture for a lithium battery pack air tightness test proposed by the present invention, figure 2 It is a schematic cross-sectional structure diagram of a lithium battery pack air tightness test explosion-proof valve plugging fixture proposed by the present invention, image 3 It is a schematic diagram of the structure of a lithium battery pack air tightness test explosion-proof valve plugging fixture and explosion-proof valve cooperation proposed by the present invention.

[0020] refer to Figures 1 to 3 , a lithium battery pack air tightness testing explosion-proof valve plugging fixture proposed by the present invention, including: a sealing seat 1, a cover plate 7, a screw rod 6, a guide rod 3, a first hook 11, a second hook 12, and a tension spring 10 ;

[0021] The bottom of the sealing seat 1 is provided with a gasket 2, ...

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Abstract

The invention discloses an explosion-proof valve sealing fixture for testing the air tightness of lithium battery packs. Through the cooperation of the design of the cover plate, the sealing seat and the pull hooks on both sides, the sealing and compacting effect is realized, and the rapid sealing of the explosion-proof valve is realized, and the sealing effect is good. , improve the pressure bearing capacity and test efficiency during the test, and ensure the accuracy of the test; the elastic parts provided facilitate the disassembly, reduce the labor intensity of the workers, the operation is fast, save time and effort; the structure is simple, the manufacturing cost is low, and the Repeated use for many times further reduces the cost of use and is conducive to a large number of popularization and use.

Description

technical field [0001] The invention relates to the technical field of lithium batteries, in particular to a plugging fixture for an explosion-proof valve for air tightness testing of lithium battery packs. Background technique [0002] Lithium battery is a type of battery that uses lithium metal or lithium alloy as the negative electrode material and uses a non-aqueous electrolyte solution. Lithium battery module refers to the combination of lithium batteries connected in series and parallel, and after protecting the circuit board and casing, it can directly supply power. [0003] During the production process of the lithium battery pack, it is necessary to test the air tightness of the battery pack to judge the waterproof and dustproof ability of the battery pack. During the detection, it is necessary to inflate the inside of the battery pack and test the internal pressure of the battery pack to achieve the purpose of testing the battery pack air. However, there is an exp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/02
CPCG01M3/02
Inventor 姚金健李晓燕
Owner HEFEI GUOXUAN HIGH TECH POWER ENERGY
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