Power battery protection device and electric automobile
A power battery and protection device technology, applied in the direction of power devices, electric power devices, vehicle components, etc., can solve the problems of ground friction fire, power battery fire, explosion, etc., to achieve the effect of avoiding friction, fire or even explosion
Inactive Publication Date: 2018-05-25
FAFA AUTOMOBILE (CHINA) CO LTD
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Problems solved by technology
When an electric vehicle crashes, the power battery may be short-circuited due to extrusion and deformation, causing fire or even explosion
[0003] In the process of implementing the embodiments of the present invention, the inventors found that some power batteries are protected by means of power failure or air bag protection, but no matter whether it is power failure or air bag protection, when a serious collision occurs, the power battery will be under strong force. Still prone to fire or even explosion after physical extrusion
At present, some explosive devices are used to make the power battery fall off to achieve the purpose of collision protection, but the explosive device itself may become the detonation source of the power battery, and the power battery may directly fall off and touch the ground due to its inertia. friction fire
Method used
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[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. 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.
[0031] Embodiment 1 of the present invention provides a power battery protection device, the device includes an airbag assembly and a lock assembly, the airbag assembly includes an airbag connected to the lock assembly and an induction control module connected to the airbag, wherein:
[0032] The lock assembly has a first state and a second state....
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The embodiment of the invention provides a power battery protection device and an electric automobile. The device comprises a safety airbag assembly and a lock catch assembly, and the safety airbag assembly comprises a safety airbag and a sensing control module; when the lock catch assembly is located in a first state, a power battery is mounted at the bottom of an automobile body, and when the lock catch assembly is located in a second state, the power battery is made to fall off from the bottom of the automobile body; the sensing control module is used for detecting a collision strength signal during collision of the automobile and judging whether the safety airbag is required to be opened or not according to the collision strength signal, if yes, the safety airbag is controlled to be opened; and the safety airbag is used for being opened at the bottom and the side face of a power battery under control of the sensing control module, and the lock catch assembly is driven to enter thesecond state in the opening process. According to the power battery protection device, when the automobile is subjected to serious collision, the power battery can be made to fall off from the automobile body, so that physical extrusion to the power battery is avoided, the power battery falls on the airbag after falling off, friction between the power battery and the ground is avoided, and the protection effect on the power battery is achieved.
Description
technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a power battery protection device and an electric vehicle. Background technique [0002] In recent years, the global smog and greenhouse effect caused by fossil fuels have seriously affected the sustainable development of the electric vehicle industry, so electric vehicles have become a development trend. Different from traditional electric vehicles, the collision safety performance of electric vehicles must not only consider the protection of the occupants, but also the protection of the power battery. The power battery has a large volume and is usually arranged at the bottom of the electric vehicle. When an electric vehicle collides with an accident, the power battery may be short-circuited due to extrusion and deformation, causing fire or even explosion. [0003] In the process of implementing the embodiments of the present invention, the inventors found that some ...
Claims
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IPC IPC(8): B60R21/01B60K1/04
Inventor 王朋波栾云飞
Owner FAFA AUTOMOBILE (CHINA) CO LTD