A test system for sealing the airtight explosion-proof valve of a lithium battery pack
A test system and explosion-proof valve technology, applied in the direction of using liquid/vacuum for liquid tightness measurement, etc., can solve problems such as inability to use uniformly, different explosion-proof valve models, etc., to reduce the trouble of sealing test, improve the sealing effect, Improved sealing effect
Active Publication Date: 2022-03-01
SUZHOU YINGTEMO AUTOMOBILE TECH CO LTD
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Problems solved by technology
[0005] The object of the present invention is to provide a test system for sealing the airtight explosion-proof valve of a lithium battery pack. Problems that cannot be used uniformly
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[0057] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0058] The invention provides a technical solution: a test system for sealing the airtight explosion-proof valve of lithium battery packs. In order to test the airtightness of lithium battery packs, in the actual operation process, the length of different types of lithium battery packs The width and height are different, and the size and structure of the battery valve on the side of the battery pack are also different according to the model. In order to solve the pr...
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The invention discloses a test system for sealing an airtight explosion-proof valve of a lithium battery pack, relates to the technical field of lithium battery testing, and includes a clamping part and a sealing part, the clamping part is installed on the lithium battery pack and is located at the explosion-proof valve On one side, a force application point is provided, and the explosion-proof valve is forced to be sealed and sealed through the blocking part; the clamping part is configured as an upper clamping part, a lower clamping part and an adjusting part, and the blocking part is configured to include The outer airtight cover, the inner sealer, the lead screw assembly and the sealing liquid filling assembly, the present invention is designed as a system for testing the airtightness of lithium battery packs, which can act on lithium battery packs of different sizes, and can test different types of lithium battery packs. Explosion-proof valves are used uniformly without customized equipment for sealing operations, further reducing the trouble of sealing test. The sealing parts of the present invention adopt the design of double sealing rings and multi-layer sealing form of oil sealing, so that the external The sealing effect of the airtight cover has been further improved.
Description
technical field [0001] The invention relates to the technical field of lithium battery testing, in particular to a testing system for sealing an airtight explosion-proof valve of a lithium battery pack. Background technique [0002] As an emerging field of electric vehicles, the airtightness test of battery packs is very important. Because water ingress in the battery pack could lead to catastrophic failure and more likely endanger the safety of the occupants of the vehicle. It is therefore imperative to ensure that the product design is robust and that appropriate leak testing requirements are in place to ensure that the battery pack does not present a fire hazard due to leakage. Most OEMs refer to IP67 as the battery pack airtight test standard. OEMs need to determine whether to use positive pressure or negative (vacuum) pressure to test the hermeticity of the battery pack. For different types of new energy vehicles, the size of their battery packs is also different. ...
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IPC IPC(8): G01M3/02
CPCG01M3/02
Inventor 杨杰余斐君陆晖
Owner SUZHOU YINGTEMO AUTOMOBILE TECH CO LTD