Lithium battery pack airtight explosion-proof valve plugging test system
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, Efficient effect
Active Publication Date: 2021-12-24
苏州英特模科技股份有限公司
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[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 lithium battery pack airtight explosion-proof valve plugging test system, and relates to the technical field of lithium battery testing. The lithium battery pack airtight explosion-proof valve plugging test system comprises a clamping part and a plugging part, the clamping part is installed on one side, located on an explosion-proof valve, of a lithium battery pack, provides a force application point, and applies force to the explosion-proof valve through the plugging part for sealed plugging; and the clamping part comprises an upper clamping part, a lower clamping part and an adjusting part, and the plugging part comprises an outer sealing cover, an inner sealing device, a lead screw assembly and a sealing liquid filling assembly. The system is designed to carry out airtightness testing on lithium battery packs, and can act on lithium battery packs with different sizes. The explosion-proof valves of different models can be used in a unified mode, customized equipment is not needed for plugging operation, the trouble of sealing performance testing is further reduced, the plugging part adopts the design of a multi-layer sealing form of double sealing rings and oil plugging, and the sealing effect of the outer sealing cover is 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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Login to View More IPC IPC(8): G01M3/02
CPCG01M3/02
Inventor 杨杰余斐君陆晖
Owner 苏州英特模科技股份有限公司