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Battery pack

A technology for battery packs and battery modules, applied to batteries, secondary batteries, battery pack components, etc., can solve problems such as poor rigidity, short circuit, and large battery pack cover area, so as to improve assembly efficiency and reduce expansion deformation degree of effect

Active Publication Date: 2020-05-05
CONTEMPORARY AMPEREX TECH CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the actual use process, it is found that the battery pack cover has a large area and poor rigidity, and the battery cells will expand during charging and discharging, resulting in a large deformation of the battery pack cover
The deformation of the outer cover of the battery pack will reduce the sealing performance of the outer cover and the box, which will cause external water vapor to enter the battery pack and cause short circuit problems

Method used

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Embodiment Construction

[0050] The present invention will be described in detail below. In the following paragraphs, different aspects of the embodiments are defined in more detail. Aspects so defined may be combined with any other aspect or aspects unless specifically stated otherwise. In particular, any feature considered to be preferred or advantageous may be combined with one or more other features which are considered to be preferred or advantageous.

[0051] Terms such as "first" and "second" appearing in the present invention are only for convenience of description, to distinguish different components with the same name, and do not indicate a sequence or a primary and secondary relationship.

[0052] In addition, when an element is referred to as being "on" another element, the element may be directly on the other element or may be indirectly on the another element with an interposed therebetween. More intermediate elements. Also, when an element is referred to as being "connected to" anoth...

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Abstract

The invention relates to a battery pack, which comprises a box body assembly, which is divided into a plurality of accommodating cavities by a plurality of fixed beams; a plurality of battery modules,which are arranged in the accommodating cavities respectively; a plurality of restraining parts, wherein a limiting part of each restraining part covers the battery module, a first mounting part anda second mounting part are connected to the two sides of the limiting part and are fixed to the fixed beams at the two sides respectively, and first mounting part and the second mounting part are respectively provided with a plurality of first mounting holes and a plurality of second mounting holes at intervals along the length direction of the fixed beam; a plurality of first fasteners, which penetrate through the corresponding first mounting holes and are fixed to the fixed beams corresponding to the first mounting part; and a plurality of second fasteners, which penetrate through the corresponding second mounting holes and are fixed to the fixed beams corresponding to the second mounting part. According to the battery pack, the matching error between the restraining parts and the fixedbeams can be allowed, and the assembly efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a battery pack. Background technique [0002] In recent years, rechargeable batteries have been widely used to power vehicles. Multiple rechargeable batteries are connected in series, parallel or in parallel to achieve greater capacity or power. [0003] In the actual use process, it is found that the battery pack cover has a large area and poor rigidity, and the battery cells will expand during charging and discharging, resulting in a large deformation of the battery pack cover. The deformation of the outer cover of the battery pack will reduce the sealing performance of the outer cover and the box body, which will cause external water vapor to enter the battery pack and cause a short circuit problem. Contents of the invention [0004] Embodiments of the present invention provide a battery pack, which can improve the sealing performance of the battery pack. [0005] The i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M50/204H01M50/262
CPCH01M2220/20H01M50/262H01M50/204Y02E60/10H01M10/0481Y02P70/50H01M50/10F16B37/067
Inventor 唐彧陈艳波汪用广王鹏游凯杰陈兴地
Owner CONTEMPORARY AMPEREX TECH CO
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