An electric vehicle battery pack with an inflatable air bag

Abstract

The invention discloses an electric vehicle battery pack with an inflatable airbag, which comprises a battery pack body, a battery pack shell, a collision detection unit, an airbag assembly and a control unit; the battery pack shell includes an inner layer wrapped outside the battery pack body The casing and the outer casing arranged outside the inner casing, and an accommodating cavity is provided between the inner casing and the outer casing; the collision detection unit includes more than two collision sensors, and the airbag assembly includes four inflatable airbags and the gas generator corresponding to the inflatable airbag, the four inflatable airbags are respectively arranged in the accommodation chambers in the four directions of front, rear, left, and right; the control unit judges the direction in which the vehicle is hit according to the output signal of the collision sensor, and triggers the corresponding direction of the collision. The gas generator of the inflatable air bag inflates the inflatable air bag. The invention also discloses an electric vehicle battery pack protection device with an inflatable airbag. The invention can effectively protect the damage to the battery pack caused by automobile collision.

Description

technical field [0001] The invention relates to the field of electric vehicles, in particular to an electric vehicle battery pack with an inflatable air bag. Background technique [0002] With the continuous development of new energy vehicle technology and the continuous improvement of people's awareness of environmental protection, electric vehicles have become more and more popular. An electric vehicle uses a power battery (that is, a battery pack) as a power source to drive a power motor to propel the car forward. In order to ensure sufficient cruising range, the existing power batteries are relatively large in size and heavy in weight. In the event of a car collision accident, the power battery is easily deformed and damaged by the impact, and the damage of the power battery will not only cause the battery If the liquid leaks out, it may also cause the danger of electric leakage, which will seriously affect the personal safety of the passengers. Therefore, how to ensur...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above-mentioned technical problems, the present invention provides an electric vehicle battery pack with an inflatable airbag, which is used to solve the problems of battery pack deformation and electric leakage during the collision of existing electric vehicles.

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