Vehicle-mounted moisture-proof and explosion-proof lithium ion storage battery box

Abstract

The invention discloses a vehicle-mounted moistureproof and explosion-proof lithium ion storage battery box, belongs to the technical field of lithium ion storage battery boxes, and provides a vehicle-mounted moistureproof and explosion-proof lithium ion storage battery box capable of ensuring moistureproof, waterproof and explosion-proof performance of the storage battery box, the vehicle-mounted moistureproof and explosion-proof lithium ion storage battery box comprises a box body in which a lithium ion storage battery mounting area is arranged, the the vehicle-mounted moistureproof and explosion-proof lithium ion storage battery box comprises an anti-explosion valve, a drying agent box and a drying agent, the anti-explosion valve is installed on the box body, the drying agent box is installed in the box body, air holes are formed in the drying agent box, and the drying agent is placed in the drying agent box. By adopting the combination of the drying agent and the anti-explosion valve, the moisture-proof, waterproof and anti-explosion performances of the storage battery box are ensured; therefore, it is ensured that the interior of the storage battery box cannot be moist and condensed in a moist environment, the insulativity and safety of the storage battery box are ensured, meanwhile, the assembling and sealing requirements of the case can be lowered, and the service life of case sealing parts is prolonged.

Description

technical field [0001] The invention relates to the technical field of lithium-ion battery boxes, in particular to a vehicle-mounted moisture-proof and explosion-proof lithium-ion battery box. Background technique [0002] In order to improve the battery life of electric vehicles, batteries in the automotive field are currently developing towards high-voltage and large-capacity models. The increase in voltage requires the simultaneous improvement of the insulation performance of the battery box; the increase in capacity requires the simultaneous improvement of the safety of the battery box. Usually, in order to ensure the moisture-proof effect inside the battery box, the battery box is generally set as a sealed space structure for installing lithium-ion batteries, but during the normal use of the battery, thermal expansion and contraction will inevitably occur; and when the battery occurs When a fault occurs, it is easy to generate an internal high voltage situation, and in ...

AI Technical Summary

Problems solved by technology

However, the traditional explosion-proof valve generally only has the effect of explosion-proof and pressure relief. During the normal use of the battery, due to the thermal expansion and contraction of the internal space, it is easy to cause the air and moisture outside the box to pass through the box. Insufficiently sealed joints and the installation position of the explosion-proof valve enter the inside of the box, resulting in poor waterproof performance of the battery box, which seriously threatens the safety of the battery box

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