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battery pack

A technology for battery packs and battery modules, applied in the direction of batteries, secondary batteries, battery pack components, etc., can solve the problems of complex structure, low reliability, high cost of cooling system, etc., to simplify the cooling structure, prevent short circuit, improve The effect of intensity

Active Publication Date: 2019-09-17
CONTEMPORARY AMPEREX TECH CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing battery liquid cooling system has multiple connections in the box of the battery pack, the structure is complex, there is a risk of liquid leakage, and the reliability is low
The layout of liquid cooling pipes is limited by the internal structure of the battery pack box, resulting in a single cross-sectional shape of the liquid cooling pipes
[0005] The cost of an independent cooling system is high, and the cooling system occupies the internal space of the battery pack, which also has a major adverse effect on the structural design of the battery pack

Method used

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Embodiment Construction

[0031] The battery pack of the present invention will be described in detail below with reference to the accompanying drawings.

[0032] refer to Figure 1 to Figure 6 , the battery pack according to the present invention includes: a lower box 1; a plurality of battery modules 2 arranged on the lower box 1; a heat conducting member 3 arranged between the lower box 1 and the bottom of the battery module 2; and The upper case 4 is fixedly connected with the lower case 1 and houses all the battery modules 2 .

[0033] The lower box 1 includes a lower box body 11 and a cover plate 12 .

[0034] The lower box body 11 has: a groove 111 disposed on the inner side of the lower box body 11 in contact with the battery module 2 or on the outer side opposite to the inner side; and a plurality of separators 112 accommodated in the groove 111 to The groove 111 is divided into a cooling channel 113 communicating with the outside.

[0035] The cover plate 12 is fixedly connected to the low...

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Abstract

The invention provides a battery pack, which includes: a lower box; a plurality of battery modules arranged on the lower box; a heat conducting member arranged between the lower box and the bottom of the battery modules; and an upper box , is fixedly connected with the lower box, and accommodates all battery modules. Wherein, the lower box includes a lower box body and a cover plate. The lower box body has: a groove disposed on the inner side of the lower box body in contact with the battery module or on the outer side opposite to the inner side; and a plurality of separators accommodated in the groove to separate the groove from the outside. Connected cooling channels. The cover plate is fixedly connected to the lower box body, and together with the lower box body and the corresponding partitions, seals the groove and the cooling channel. According to the battery pack of the present invention, the cooling channel is arranged in the lower box body, which simplifies the cooling structure of the battery pack, prevents the battery from being polluted by the coolant leakage and prevents the battery from being short-circuited by the coolant, and at the same time improves the strength of the battery pack box.

Description

technical field [0001] The invention relates to the field of batteries, in particular to a battery pack. Background technique [0002] With the development of power battery technology, electric vehicles have increasingly stringent requirements for power batteries, higher energy density requirements for battery packs, and correspondingly stricter requirements for power battery pack thermal management. Therefore, the battery liquid cooling system has become the development trend of battery pack thermal management technology. [0003] The common design of the battery liquid cooling system in the existing market: the cooling liquid is driven by the liquid pump, the cooling liquid flows in the liquid pipe, the liquid cooling pipe is arranged in the box of the battery pack, the liquid cooling pipe is connected with the water pipe joint, and the design under the liquid cooling pipe support structure. [0004] The existing battery liquid cooling system has multiple connections in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/10H01M10/613H01M10/625H01M10/6556H01M10/6568H01M50/236H01M50/24H01M50/244H01M50/258H01M50/271H01M50/289
CPCH01M2220/20H01M50/20Y02E60/10
Inventor 修长江姜亮史启通尤若波李清
Owner CONTEMPORARY AMPEREX TECH CO