Cooling system for fuel cell

A technology of heat dissipation system and fuel cell, which is applied in the fields of fuel cell heat exchange, fuel cell, fuel cell auxiliary, etc., can solve the problems of limited heat dissipation capacity, insufficient heat dissipation capacity of fuel cell, and large influence of ambient temperature.

Pending Publication Date: 2022-04-12
BEIJING SINOHYTEC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most vehicles use an independent air-cooled radiator fuel cell thermal management system, which has limited heat dissipation capacity and is greatly affected by the ambient temperature
When the ambient temperature is high, fuel cells using air-cooled radiators are prone to insufficient heat dissipation

Method used

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  • Cooling system for fuel cell

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Embodiment Construction

[0021] figure 1 and the following description describe alternative embodiments of the invention to teach those skilled in the art how to make and reproduce the invention. In order to teach the technical solutions of the present invention, some conventional aspects have been simplified or omitted. Those skilled in the art should understand that modifications or substitutions from these embodiments will fall within the protection scope of the present invention. Those skilled in the art will appreciate that the features described below can be combined in various ways to form multiple variations of the invention. As such, the invention is not limited to the alternative embodiments described below, but only by the claims and their equivalents.

[0022] figure 1 A schematic diagram of a heat dissipation system according to an embodiment of the present invention is shown. like figure 1 As shown, the fuel cell heat dissipation system includes an electric stack 1, a heat exchange ...

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PUM

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Abstract

The invention provides a heat dissipation system for a fuel cell, the heat dissipation system for the fuel cell comprises an electric pile, a heat exchange assembly, a heat dissipation assembly and an air conditioning refrigeration assembly, a first end of the heat dissipation assembly is communicated with a cooling liquid outlet of the electric pile, and a second end of the heat dissipation assembly is communicated with a cooling liquid inlet of the electric pile; the heat dissipation assembly is connected with the air conditioner refrigeration assembly through the heat exchange assembly, and the cooling liquid leaving the electric pile is cooled by the heat dissipation assembly and the air conditioner refrigeration assembly through the heat exchange assembly in sequence and then returns to the electric pile. The heat dissipation system for the fuel cell has the advantages that the air conditioner refrigeration assembly is connected with the heat dissipation assembly by using the heat exchanger, so that the air conditioner refrigeration assembly is used as an auxiliary cooling device to carry out secondary heat dissipation on cooling liquid, and additional heat dissipation capability is provided; and normal operation of the fuel cell stack in a high-temperature environment or when the heat dissipation capability of the radiator is insufficient is further ensured.

Description

technical field [0001] The invention relates to a heat dissipation system, in particular to a heat dissipation system for a fuel cell. Background technique [0002] A hydrogen fuel cell is a power generation device that directly converts the chemical energy generated by the reaction of hydrogen and oxygen into electrical energy through an electrochemical reaction. It has the advantages of high power generation efficiency and low environmental pollution, so it is widely used in the automotive field. Compared with traditional power sources, the optimal operating temperature range of fuel cells is smaller, and temperature has a significant impact on its performance and life. When the temperature of the fuel cell stack is too low, there is obvious activation polarization of the fuel cell, and the impedance of the proton exchange membrane of the fuel cell becomes larger. When the temperature of the fuel cell stack is too high, the evaporation rate of water is accelerated, which ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04007H01M8/04029B60L58/33B60H1/00
CPCY02E60/50Y02T90/40
Inventor 李杰张国强周鹏飞贾能铀张禾杨绍军
Owner BEIJING SINOHYTEC
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