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Self-adaptive cooling variable battery cell bracket

A variable and self-adaptive technology, applied in circuits, electrical components, secondary batteries, etc., can solve problems such as shortened battery life, and achieve the effect of lowering the temperature and uniform temperature distribution of the battery

Pending Publication Date: 2022-08-09
GUANG DONG GREENWAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the long-term operation of the battery, the cells in the temperature hot spot area are kept at the highest temperature for a long time, which shortens the life of the cells

Method used

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  • Self-adaptive cooling variable battery cell bracket
  • Self-adaptive cooling variable battery cell bracket
  • Self-adaptive cooling variable battery cell bracket

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] see Figure 1 to Figure 3 , an adaptive cooling variable cell support provided by this embodiment includes:

[0033] The cell support 1 is used for fixed installation and protection of the cells. The cell support 1 is designed with a negative Poisson's ratio structure. The cell support 1 includes a support structure 11 and a cell structure 12. A first structural wall 121 is used on the outside of the support structure 11, and a first structural wall 121 is used on the outside of the cell structure 12, and a second structural wall 122 is disposed on the inside of the first structural wall 121. The thermal expansion coefficient of the material used for the first structural wall 121 is much larger than that of the second structural wall 121 The thermal expansion coefficient of the material used for the structural wall 122;

[0034] Bracket plate 2, used to fix and install the cell bracket 1;

[0035] The battery cells 3 are used to provide electric energy. The battery ce...

Embodiment 2

[0041] An adaptive cooling variable cell support provided in this embodiment includes:

[0042] The cell support 1 is used for fixed installation and protection of the cells. The cell support 1 is designed with a negative Poisson's ratio structure. The cell support 1 includes a support structure 11 and a cell structure 12. A first structural wall 121 is used on the outside of the support structure 11, and a first structural wall 121 is used on the outside of the cell structure 12, and a second structural wall 122 is disposed on the inside of the first structural wall 121. The thermal expansion coefficient of the material used for the first structural wall 121 is much larger than that of the second structural wall 121 The thermal expansion coefficient of the material used for the structural wall 122;

[0043] Bracket plate 2, used to fix and install the cell bracket 1;

[0044] The battery cells 3 are used to provide electric energy. The battery cells 3 are arranged between th...

Embodiment 3

[0050] An adaptive cooling variable cell support provided in this embodiment includes:

[0051] The cell support 1 is used for fixed installation and protection of the cells. The cell support 1 is designed with a negative Poisson's ratio structure. The cell support 1 includes a support structure 11 and a cell structure 12. A first structural wall 121 is used on the outside of the support structure 11, and a first structural wall 121 is used on the outside of the cell structure 12, and a second structural wall 122 is disposed on the inside of the first structural wall 121. The thermal expansion coefficient of the material used for the first structural wall 121 is much larger than that of the second structural wall 121 The thermal expansion coefficient of the material used for the structural wall 122;

[0052] Bracket plate 2, used to fix and install the cell bracket 1;

[0053] The battery cells 3 are used to provide electric energy. The battery cells 3 are arranged between th...

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Abstract

The invention provides a self-adaptive cooling variable battery cell bracket, which comprises a battery cell bracket adopting a negative Poisson's ratio structural design, the battery cell bracket comprises a supporting structure and a cell structure, the cell structure is arranged on the outer side of the supporting structure in an annular lamination manner, the outer side of the cell structure adopts a first structural wall, and a second structural wall is arranged on the outer side of the first structural wall; a first structural wall is arranged on the inner side of the cell element structure, a second structural wall is arranged on the inner side of the first structural wall, and the thermal expansion coefficient of a material adopted by the first structural wall is far greater than that of a material adopted by the second structural wall. The self-adaptive deformation of the battery cell bracket structure can be realized according to the battery cell temperatures at different positions in the battery, so that the cooling air duct in the battery cell is changed, the heat dissipation efficiency of the air duct is preferentially concentrated towards the hot spot area of the battery cell, and the temperature of the hot spot area of the battery cell is reduced. And after the full self-adaptive structure change, the temperature distribution of the battery cell in the battery tends to be uniform.

Description

technical field [0001] The invention relates to the technical field of new energy cell supports, in particular to an adaptive cooling variable cell support. Background technique [0002] The Poisson's ratio of conventional materials is generally positive, about 0.33. Rubber materials are 0.5, metal aluminum is 0.133, copper is 0.127, and typical polymer foams are 0.11 to 0.14, etc. These positive Poisson's ratio materials shrink in the transverse direction of the material when stretched. The negative Poisson's ratio effect means that when stretched, the material expands laterally within the elastic range; when compressed, the material shrinks laterally. This phenomenon is thermodynamically possible, but the presence of negative Poisson's ratio effects is not generally observed in materials in general. Some materials with special structures discovered in recent years have negative Poisson's ratio effect, and they have attracted much attention from material scientists and ph...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/613H01M10/6563H01M50/289
CPCH01M50/289H01M10/613H01M10/6563Y02E60/10
Inventor 余炜光刘俊叶国华刘聪曾国强
Owner GUANG DONG GREENWAY TECH CO LTD
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