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Cooling plate support and battery pack

A cooling plate and support column technology, applied to secondary batteries, battery pack components, circuits, etc., can solve the problems of cooling plate bending deformation, height difference, inconsistent heat transfer efficiency, etc., to reduce weight and cost, and simplify assembly The effect of consistent process and heat transfer efficiency

Pending Publication Date: 2022-03-29
JIANGLING MOTORS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to achieve a longer cruising range for electric vehicles, the battery pack usually arranges double-layer modules, and the second upper module and the cooling plate need to be fixed by multiple brackets; due to manufacturing process limitations and tolerance factors for multi-layer structure installation, the second The height of the cooling plate installation interface of the upper module is inconsistent, and the fixing of the cooling plate further causes the cooling plate to bend and deform
The second upper module and the above-mentioned curved and deformed cooling plate need to be partially filled with thicker thermal conductive agent to establish heat conduction. Thicker thermal conductive agent increases the weight and cost of the battery pack and reduces the heat exchange efficiency.
The heat transfer agent with uneven thickness causes inconsistent heat transfer efficiency in different areas, which in turn leads to an increase in the temperature difference of the second upper module
[0004] CN112670646A discloses a battery pack with a double-layer module structure. The liquid cooling plate of the second upper module is installed on a plurality of brackets, and the plurality of brackets are respectively fixed on the box body or the lower module; As a result, there is a height difference between the various installation points of the liquid cooling plate, which in turn causes the flatness of the liquid cooling plate to fail to meet design expectations, further affecting the thermal management performance of the second upper module

Method used

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  • Cooling plate support and battery pack
  • Cooling plate support and battery pack
  • Cooling plate support and battery pack

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Example 1: see Figure 1-7 .

[0039] like figure 1 , figure 2 As shown, a cooling plate support, the cooling plate support (2) is composed of a base (21) and a floating support platform (22), the base (21) is provided with a first interface (211), a second interface (212) and the third interface (213), the base (21) is connected with the support firmware of the cooling plate support (2) through the first interface (211), connected with the floating support platform (22) through the second interface (212), and through The third interface (213) is fixedly connected with the cooling plate (3), such as image 3 As shown, the floating support platform (22) is composed of a support column (221) and a friction ring (222), and the support column (221) includes a support surface (2211), a mounting hole (2212), a groove (2213) and the fourth interface (2214), the support surface (2211) is in contact with the installation surface (31) of the cooling plate (3) to support the ...

Embodiment 2

[0049] Example 2: see Figure 8-13 .

[0050] like Figure 8-10 As shown, a battery pack specifically supported by a cooling plate as described in Embodiment 1 includes a box body 51, a case cover 52, a second upper layer module 55, an upper layer cooling plate 54, a lower layer module 53, and a cooling plate support 2 And the second fastener 56, the lower module 53 is installed on the box body 51, a plurality of cooling plate supports 2 are installed on the lower module 53, the upper cooling plate 54 is installed on the cooling plate support 2, the second upper layer The module 55 is installed above the upper cooling plate 54 , and a heat conducting agent is filled between the second upper module 55 and the upper cooling plate 54 .

[0051] like Figure 11-13 Shown is a schematic diagram of the bending deformation of the traditional battery pack cooling plate installation process, a plurality of brackets 12 are installed above the battery tray 11 of the traditional battery...

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Abstract

The cooling plate support is composed of a base and a floating supporting platform, the base is connected with a battery pack box through a first interface, connected with the floating supporting platform through a second interface and fixedly connected with a cooling plate through a third interface, and the floating supporting platform is composed of a supporting column and a friction ring. The supporting column comprises a supporting face, an installation hole, a groove and a fourth connector, the supporting face makes contact with the installation face of the cooling plate, the cooling plate connecting piece penetrates through the installation hole to fix the cooling plate, the friction ring is installed in the groove, and the fourth connector is connected with the second connector. According to the invention, the plurality of cooling plates are used for supporting, so that each supporting column can be respectively attached to the mounting surfaces of the cooling plates in the battery pack mounting process, the situation that the flatness of the cooling plates is influenced by accumulated errors of parts in a traditional bracket structure is avoided, and heat conduction can be established between a battery pack module and the cooling plates through a thinner heat conduction agent layer; and the weight and the cost of the battery pack are reduced.

Description

technical field [0001] The invention relates to the technical field of design of a cooling plate fixing structure of a power battery pack, in particular to a cooling plate support and a battery pack. Background technique [0002] The battery module generates heat during charging and discharging operations, which must be dissipated in order to achieve the desired level of battery performance. Conventional technical means can dissipate heat through cooling plates to maintain the battery module at a suitable temperature. The existing technology needs to fill the heat conduction agent between the cooling plate and the battery module to improve the heat transfer, because the increase of the filling thickness of the heat conduction agent will reduce the heat transfer efficiency between the cooling plate and the battery module, and further increase the battery pack. In terms of weight and cost, it is technically desirable to reduce the thickness of the heat transfer agent on the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/613H01M10/6554H01M50/244
CPCH01M10/613H01M10/6554H01M50/244Y02E60/10
Inventor 林金源董冰游道亮汤桃峰
Owner JIANGLING MOTORS