Protection system for battery pack for vehicle
A protection system and battery pack technology, applied in the field of vehicles, can solve the problems of excessive deformation and deformation of the battery pack shell, endangering the lives of vehicle occupants, etc.
Pending Publication Date: 2022-08-02
梅赛德斯-奔驰集团股份公司
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Problems solved by technology
When the vehicle collides while driving, the external force generated by the collision will be transmitted to the battery pack shell through the body, especially the body sill beam and the peripheral parts of the battery pack. Excessive loads will cause excessive deformation or damage to the battery pack shell. Damaged, resulting in the exposure of the internal cells and high-voltage components of the battery pack
In addition, the collision of the vehicle exerts torque on the peripheral parts of the battery pack and causes severe deformation, thereby causing the peripheral parts to squeeze the battery pack, causing the cells and modules to be pierced, causing the battery to catch fire and even cause an explosion
This seriously affects the safety performance of the vehicle, and even endangers the lives of vehicle occupants
Method used
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[0026] In order to make the technical problems, technical solutions and beneficial technical effects to be solved by the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and multiple exemplary embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the protection scope of the present invention.
[0027] In the description of this embodiment, the orientation or positional relationship such as "upper" and "lower" is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of description and simplified operation, rather than indicating or implying the indicated device. Or elements must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.
[00...
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The invention relates to a protection system for a battery pack of a vehicle, and the protection system at least comprises a height adjustment mechanism which is constructed as a hydraulically driven piston mechanism and is provided with a cylinder barrel which is configured to be suitable for being fixedly connected with a vehicle body of the vehicle, and the cylinder barrel is provided with a first opening in the upper part in the gravity direction and is provided with a second opening in the lower part in the gravity direction; the piston is provided with a piston head received in the cylinder barrel and a piston rod at least partially extending out of the cylinder barrel, and the piston rod is configured to be suitable for being fixedly connected with the battery pack; a detection unit configured to be suitable for detecting a collision signal of the vehicle; and the control unit is configured to be suitable for correspondingly controlling liquid input into the cylinder barrel through the first opening according to the collision signal so as to enable the battery pack fixedly connected with the piston rod to descend. The damage risk of the battery pack can be effectively reduced, fire or explosion of the battery is avoided, the gravity center of the vehicle can be reduced after the battery pack descends in the gravity direction, the overturning risk of the vehicle is reduced, and the safety of passengers is improved.
Description
technical field [0001] The present invention relates to the field of vehicles, in particular to a protection system for a battery pack of a vehicle. Background technique [0002] In recent years, due to the advantages of zero emission and high efficiency, electric vehicles or hybrid vehicles using power batteries as power sources have received more and more attention. Among them, the collision safety of vehicles has become a research hotspot. [0003] Currently, in an existing vehicle with a power battery, the battery pack is fixedly connected to the body of the vehicle and has a certain overlap with the body in the direction of gravity. When the vehicle collides during driving, the external force generated by the collision will be transmitted to the battery pack casing through the body, especially the body sill beam and the surrounding parts of the battery pack. Excessive load will cause excessive deformation of the battery pack casing or Damaged, resulting in exposure of ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01M50/249H01M10/42H01M10/48H01M50/202H01M50/24H01M50/242H01M50/244H01M50/289
CPCH01M50/249H01M50/202H01M50/242H01M50/24H01M50/244H01M50/289H01M10/48H01M10/4285H01M2220/20Y02T10/70B60L3/0007B60L3/0046B60L50/66
Inventor 杨传州
Owner 梅赛德斯-奔驰集团股份公司