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Power battery cooling plate and cooling device

A cooling plate and power technology, applied in the direction of secondary batteries, circuits, electrical components, etc., can solve the problems of safety accidents, burning, damage to batteries, etc., and achieve the effects of not easy to leak, less parts, and sufficient heat exchange

Pending Publication Date: 2018-03-06
ZHEJIANG YINLUN MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once a leak occurs, the ethylene glycol in the coolant may cause combustion, thereby damaging the battery and even causing a greater safety accident

Method used

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  • Power battery cooling plate and cooling device
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  • Power battery cooling plate and cooling device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] refer to figure 1 , the battery cooling device in the prior art has a refrigerant circuit and a cooling liquid circuit, the defects of which have been described above and will not be repeated here.

[0033] refer to figure 2 , a kind of power lithium battery cooling device of the present invention, comprises the second branch circuit that is made of cooling plate and the second expansion valve at the front end of cooling plate, described second branch circuit and the evaporator of automobile refrigeration system and the evaporator The first branch formed by the first expansion valve at the front end is connected in parallel, and the cooling plate is attached to the battery.

[0034] In the cooling device of a power lithium battery of the present invention, the liquid refrigerant coming out of the condenser is divided into two paths: one path enters the evaporator after throttling and depressurizing through the first expansion valve, where it vaporizes and absorbs heat...

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PUM

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Abstract

The invention discloses a power lithium battery cooling plate. The power battery cooling plate comprises a forming plate and a flat plate, the forming plate is internally provided with a plurality ofrunners, the power battery cooling plate is characterized in that each runner comprises a freezing medium entrance section, a plurality of flows and a freezing medium exit section which are sequentially connected in series, a heat exchange area is formed in the flow, and the heat exchange areas of the various runners are arranged in parallel. A freezing medium of an automobile refrigerating systemis used as a refrigerant to cool a lithium battery. The freezing medium enters the cooling plate from the entrance section of the runner, exchanges heat with the battery in the runner, and flows outfrom the exit section after absorbing the heat. As the multiple runners are adopted, the flow distribution of the freezing medium on the cooling plate is reasonable, and the effect of evenly cooling the battery is produced. Each runner is provided with a plurality of flows, the cold and hot flows are distributed in a staggered manner, so that the heat exchange is more sufficient, and the heat exchange efficiency is improved.

Description

technical field [0001] The invention relates to the field of power lithium batteries, in particular to the field of power lithium batteries of electric vehicles and hybrid vehicles, in particular to a power lithium battery cooling plate and a cooling device. Background technique [0002] Pure electric vehicles and hybrid vehicles use batteries as the power source, which can achieve zero pollution during use, and can use coal, water and other non-oil resources, and can effectively solve vehicle pollution and energy problems, so they are generally valued worldwide . The performance and quality of these vehicles depend to a large extent on the performance of the power battery packs they are equipped with. Temperature is a crucial factor affecting the performance of power batteries. When the vehicle is running under different driving conditions, the battery will be discharged at different rates and generate a large amount of heat at different heat generation rates. In addition...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/613H01M10/625H01M10/6554H01M10/6556
CPCH01M10/613H01M10/625H01M10/6554H01M10/6556Y02E60/10
Inventor 鲜明谢建刘浩由毅
Owner ZHEJIANG YINLUN MACHINERY
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