Battery pack lower shell and battery pack with same

A shell and battery technology, applied in the direction of batteries, battery pack components, circuits, etc., can solve the problems of poor stability, insufficient strength and rigidity, etc., and achieve the effects of stable position, small space occupation, and high structural strength
CN113036296APending Publication Date: 2021-06-25奇瑞新能源汽车股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
奇瑞新能源汽车股份有限公司
Publication Date
2021-06-25

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Abstract

The invention discloses a battery pack lower shell and a battery pack with the same. The battery pack lower shell comprises a lower shell part, a reinforcing part and a fixing part. A battery cavity for containing a battery is formed in the lower shell part, the lower shell part extends in the direction away from the battery cavity to form a first turned-over edge, the reinforcing part is connected to the side, away from the battery cavity, of the lower shell part, a cavity is defined by the reinforcing part and the lower shell part, the fixing part is connected between the first turned-over edge and the reinforcing part, one end of the fixing part extends to the cavity, and the other end of the fixing part is arranged outside the cavity. According to the battery pack lower shell, the reinforcing part is arranged on one side of the lower shell part and used for improving the structural strength of the lower shell part, the fixing part is connected between the first turned-over edge and the reinforcing part, and part of the structure is located in the cavity; The lower shell part is fixedly connected to the vehicle body floor on the premise that the fixing part occupies less external space, and the structural strength and the stability of the battery pack lower shell are improved.
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Description

technical field

[0001] The invention belongs to the technical field of battery pack production and manufacture, in particular to a battery pack lower casing and a battery pack having the same. Background technique

[0002] The battery pack mainly includes the lower casing of the battery pack, the upper casing of the battery pack, the battery, the high-voltage electrical system and the thermal management system. The battery, the high-voltage electrical system and the thermal management system are placed inside the lower casing of the battery pack, and the lower casing of the battery pack The body mainly plays the role of protecting the battery, high-voltage electrical system and thermal management system. Therefore, the lower case of the battery pack is one of the core components of the battery pack. The structural strength and stability of the lower case of the battery pack directly determine the battery pack overall performance.

[0003] In the prior art, combining figure...

Claims

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