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High-power lithium ion power battery pack spray cooling system and cooling method thereof

A power battery pack and spray cooling technology, which is applied to secondary batteries, circuits, electrical components, etc., can solve the problems of poor heat dissipation of high-power power batteries, and achieve healthy working conditions, good temperature uniformity, and high cooling efficiency Effect

Pending Publication Date: 2022-08-09
HENAN UNIV OF SCI & TECH
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Problems solved by technology

[0004] The purpose of the present invention is to provide a high-power lithium-ion power battery pack spray cooling system and cooling method thereof, to solve the problem that the existing cooling system has poor heat dissipation effect on high-power power battery

Method used

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  • High-power lithium ion power battery pack spray cooling system and cooling method thereof
  • High-power lithium ion power battery pack spray cooling system and cooling method thereof
  • High-power lithium ion power battery pack spray cooling system and cooling method thereof

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specific Embodiment

[0038] refer to figure 1 As shown, the spray cooling system of the high-power lithium-ion power battery pack in this embodiment includes a spray system, a condensation system and a data acquisition system.

[0039] The spray system includes a compressor 7 , a condenser 8 , a liquid storage tank 14 storing refrigerant, a filter 16 , a throttle valve 17 , a spray chamber 1 for placing the power battery 2 , and a gas-liquid separator 6 , the compressor 7, the condenser 8, the liquid storage tank 14, the filter 16, the throttle valve 17, the spray chamber 1 and the gas-liquid separator 6 are connected in sequence to form a refrigerant circulation channel, wherein the spray chamber 1 is capable of The box-type structure forming a closed space is provided with a nozzle 3, and the nozzle 3 is connected to the throttle valve 17. After the throttle valve 17 acts, the refrigerant is sprayed out, so that the refrigerant is dispersed in the spray cavity 1, The phase-changed refrigerant a...

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Abstract

A spray cooling system for a high-power lithium ion power battery pack comprises a spray system, a condensation system and a data acquisition system, wherein the spray system comprises a compressor, a condenser, a liquid storage tank for storing a refrigerant, a filter, a throttle valve, a spray cavity for placing a power battery and a gas-liquid separator which are sequentially connected through pipelines; a spraying pipe is arranged in the spraying cavity; the condensation system comprises a thermostatic bath in loop connection with the condenser, and a water pump and a flow meter are arranged in the loop; and the data acquisition system comprises temperature sensors arranged in the refrigerant circulation channel and the water circulation channel, and a pressure sensor and a data acquisition instrument which are arranged in the refrigerant circulation channel. Phase change spray of the refrigerant can be used for cooling the power battery, the surface heat of the power battery is absorbed through phase change latent heat of the refrigerant so as to reduce the surface temperature of the battery, and the method is high in heat dissipation capacity and can meet the thermal management requirements of high-power lithium ion power batteries with high temperature, quick charge and the like.

Description

technical field [0001] The invention relates to the technical field of lithium-ion power battery cooling, in particular to a high-power lithium-ion power battery pack spray cooling system and a cooling method thereof. Background technique [0002] Facing the dual pressure of energy depletion and environmental pollution, electric vehicles have gradually become the development trend of automobiles due to their advantages of cleanliness, environmental protection and high energy utilization. The advantages of small discharge and other advantages are widely used in electric vehicles. [0003] With the gradual development of high-power lithium-ion power batteries for vehicles, many problems need to be solved urgently, especially major safety hazards such as battery thermal runaway, spontaneous combustion and even explosion caused by excessive temperature, which threaten the personal and property of users. Among all the currently available thermal management methods, air cooling i...

Claims

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Application Information

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IPC IPC(8): H01M10/613H01M10/625H01M10/6569
CPCH01M10/613H01M10/625H01M10/6569H01M2220/20Y02E60/10
Inventor 梁坤峰孙权高春艳张云朋冯长振董彬周训冯业刘大永曹勇任岘乐
Owner HENAN UNIV OF SCI & TECH
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