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Heat-conducting ring band with scale-like fins and composite heat dissipating device with heat-conducting ring band

A technology of heat dissipation device and heat conduction ring, which is applied to electrical components, electrochemical generators, circuits, etc., can solve the problems of excessive weight, bulky, and complicated process of heat dissipation fins, and achieves less consumption and volume of aluminum, and improved performance. Safety performance, the effect of enhancing the heat transfer effect

Inactive Publication Date: 2016-01-06
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The heat dissipation fins of this patent are prepared by extrusion process, which is relatively complex and time-consuming, and the heat dissipation fins produced are too heavy and bulky, so they cannot be used in power plants that require high weight and volume, such as automobiles. battery system

Method used

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  • Heat-conducting ring band with scale-like fins and composite heat dissipating device with heat-conducting ring band
  • Heat-conducting ring band with scale-like fins and composite heat dissipating device with heat-conducting ring band
  • Heat-conducting ring band with scale-like fins and composite heat dissipating device with heat-conducting ring band

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A heat conduction ring belt 4 with fish-scale fins, its structure is as follows figure 1 As shown, it is used to enhance the heat dissipation capability of the heat-generating device to the external environment. The material of the heat-conducting ring 4 is aluminum, and the heat-conducting ring 4 includes a heat-conducting ring base 1 wrapping the heat-generating device. The heat-conducting ring base 1 is directly stamped Nine integrally formed fish-like scale fins 2 and stamping holes 3 matching the fish-like scale fins 2 are formed. The punching holes 3 are rectangular, and the fish-like scale fins 2 are divided into three rows and arranged in staggered rows.

[0038] A composite heat dissipation device with the above-mentioned heat-conducting ring 4, including a heat-conducting ring 4 wrapping the battery cell 5, and an outer shell box 6 sheathed outside the heat-conducting ring 4, the shell box 6 and the heat-conducting ring The phase change material 7 is filled be...

Embodiment 2

[0042] A heat-conducting ring 4 with fish-scale fins, which is used to enhance the heat dissipation capability of heat-generating devices to the external environment. The material of the heat-conducting ring 4 is aluminum alloy, and the heat-conducting ring 4 includes a heat-conducting ring that wraps the heat-generating device Substrate 1, the part of the heat conduction ring belt substrate 1 is directly stamped to form six groups of fish-like fins 2 arranged in a row and integrally formed, and punching holes 3 matching the fish-like fins 2. The punching holes 3 are diamond-shaped, each There are 9 fish scale fins 2 in the group, and the heads of the fish scale fins 2 are bent into a curved surface structure, and its structure is as follows: Figure 5 shown, and see Figure 9 shown.

[0043] A composite heat dissipation device with the above-mentioned heat-conducting ring 4, including a heat-conducting ring 4 wrapping the battery cell 5, and an outer shell box 6 sheathed out...

Embodiment 3

[0047] A heat conduction ring belt 4 with fish-scale fins, its structure is as follows Image 6 and Figure 9 As shown, it is used to enhance the heat dissipation capability of the heat-generating device to the external environment. The material of the heat-conducting ring 4 is aluminum, and the heat-conducting ring 4 includes a heat-conducting ring base 1 wrapping the heat-generating device. The heat-conducting ring base 1 is directly stamped Six groups of ichthyoid fins 2 are formed in a staggered arrangement and integrally formed, and punching holes 3 matched with the ichthyoid fins 2 are formed. The punching holes 3 are elliptical, and each group of ichthyoid fins 2 is provided with nine.

[0048] A composite heat dissipation device with the above-mentioned heat-conducting ring 4, including a heat-conducting ring 4 wrapping the battery cell 5, and an outer shell box 6 sheathed outside the heat-conducting ring 4, the shell box 6 and the heat-conducting ring The phase chang...

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Abstract

The invention relates to a heat-conducting ring band with scale-like fins and a composite heat dissipating device with the heat-conducting ring band. The heat-conducting ring band is used for reinforcing the heat dissipating ability of a heat generating device to the external environment. The heat-conducting ring band comprises a heat-conducting ring band base body wrapping the heat generating device. The heat-conducting ring band base body is provided with the multiple scale-like fins stamped in an integrally-formed mode. The composite heat dissipating device comprises the heat-conducting ring band wrapping a cell monomer, and a housing box arranged outside the heat-conducting ring in a sleeving mode. The portion between the housing box and the heat-conducting ring band is filled with a phase-change material, so that a heat conducting channel of the cell monomer, the heat-conducting ring band, the fins and the phase-change material is formed. Compared with the prior art, the heat-conducting ring band has the advantages of being excellent in heat transfer reinforcing effect, good in impact buffering effect, low in weight, small in size and low in cost, few materials are used, and the heat dissipating performance of the composite heat dissipating device is excellent.

Description

technical field [0001] The invention relates to the technical field of power battery heat dissipation, in particular to a heat conduction ring belt with fish-scale fins and a composite heat dissipation device with the heat conduction ring belt. Background technique [0002] Power batteries such as lithium-ion batteries have high energy density, small size, and long cycle life. They have great application potential and market in motorcycles and electric vehicles. However, due to the temperature rise of lithium-ion batteries during the charging and discharging process, their performance and cycle life are affected. Excessively high temperatures may even cause thermal runaway, resulting in accidents such as spontaneous combustion and explosion. However, the temperature of conventional lithium cobalt oxide batteries needs to be controlled within 50 degrees Celsius. , to avoid thermal runaway and improve safety. Although the working temperature of the lithium iron phosphate batt...

Claims

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Application Information

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IPC IPC(8): H01M2/10H01M10/613H01M10/625H01M10/653H01M10/6551H01M10/659H01M50/242H01M50/244H01M50/249
CPCH01M50/20Y02E60/10
Inventor 张恒运王之伟夏欣李永芳郭辉
Owner SHANGHAI UNIV OF ENG SCI
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