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Forced convection power battery heat radiation device

A technology of heat dissipation device and fluid power, which is applied in the direction of batteries, secondary batteries, battery pack components, etc., can solve the problems of excessive weight, bulky volume and complicated process of heat dissipation fins, and achieves simple structure and less material consumption. , Enhance the effect of heat dissipation

Active Publication Date: 2016-07-06
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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  • Forced convection power battery heat radiation device
  • Forced convection power battery heat radiation device
  • Forced convection power battery heat radiation device

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Embodiment Construction

[0044] The present invention will be further described below in conjunction with accompanying drawing.

[0045] Such as Figure 1~3 , Figure 7-8 As shown, several cylindrical batteries 1 are vertically arranged in the battery pack box with the opening upward, and the batteries 1 can be in different packaging forms such as square pillars, cylinders, or aluminum-plastic film soft bags. Near the top of the battery 1 , an upper insulating plate 10 is disposed in the battery pack box, and the upper insulating positioning plate 10 is tightly sleeved on the battery 1 .

[0046] At least one heat diffusion plate 2 is arranged in the battery pack box between the top and bottom of the battery. The surface has an oxide film layer with electrical insulation strength after anodic oxidation passivation treatment.

[0047] Such as Figure 7-8 As shown, the outer edge of the thermal diffusion plate 2 is close to the side wall of the battery pack box, and the heat-absorbing and heat-condu...

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Abstract

The invention discloses a forced convection power battery heat radiation device. A battery pack box which is opened upwards comprises a plurality of columnar batteries which are arranged at intervals; at least one heat diffusion plate is arranged between the tops and bottoms of the batteries inside the battery pack box; the batteries are tightly sleeved by the heat diffusion plates through sleeves; the space below the heat diffusion plates inside the battery pack box is filled with a heat absorption and conduction material layer; an air inlet and a vent hole are respectively formed in two opposite side walls above the heat diffusion plates of the battery pack box correspondingly; fans are arranged at the air inlet and / or the vent hole; or gaps are formed between the heat diffusion plates and the side walls of the battery pack box; an air inlet and a vent hole are respectively formed in two opposite side walls of the battery pack box; fans are arranged on the air inlet and / or the vent hole; no through holes are / are not formed in the heat diffusion plates. The forced convection power battery heat radiation device can be applied to active air cooling heat exchange and passive heat radiation of a filled phase-change material as well, and is good in heat radiation effect, relatively uniform in temperature distribution, compact in appearance, simple in structure and applicable to power battery systems.

Description

technical field [0001] The invention relates to the technical field of power battery cooling, in particular to a forced convection power battery cooling device. Background technique [0002] Power batteries such as lithium-ion batteries have high energy density, small size, and long cycle life. They have great potential for application in electric passenger cars and commercial vehicles. However, since the temperature rise of the lithium-ion battery during charging and discharging affects its performance and cycle life, too high temperature may even cause thermal runaway, resulting in accidents such as spontaneous combustion and explosion. The temperature of the conventional lithium cobaltate cathode material battery needs to be controlled at 50 degrees Celsius. Within, to avoid thermal runaway and fire explosion, improve safety. With the advancement of battery materials and processes, although the operating temperature of batteries using lithium iron phosphate as the positi...

Claims

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Application Information

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IPC IPC(8): H01M2/10H01M10/613H01M10/617H01M10/625H01M10/653H01M10/6555H01M10/6557H01M10/6563H01M50/204
CPCH01M10/613H01M10/617H01M10/625H01M10/653H01M10/6555H01M10/6557H01M10/6563H01M2220/20H01M50/20Y02E60/10
Inventor 张恒运王兆强许莎王之伟
Owner SHANGHAI UNIV OF ENG SCI
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