Bipolar plate cooling liquid pressure drop measurement device and battery pack stacking method
A measurement device and bipolar plate technology, which is applied to measurement devices, pressure difference measurement between multiple valves, fuel cells, etc. Simple direct cooling pressure drop, easy performance effect
Active Publication Date: 2022-03-01
DONGFENG MOTOR CORP HUBEI
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Problems solved by technology
[0004] The invention provides a bipolar plate cooling pressure drop measuring device and a stacking method for battery packs to solve the problem in the related art that the cooling pressure drop of the bipolar plate cannot be measured and the uniformity of the bipolar plate cannot be guaranteed
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[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0040] In the actual bipolar plate processing process, whether it is graphite bipolar plate or metal bipolar plate, due to the influence of the processing technology, the performance of the coolant channel of each batch of bipolar plate is different. The difference is reflected in the indicator of cooling pressure drop or resistance drop. Th...
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The invention relates to a bipolar plate cooling liquid pressure drop measurement device and a stacking method of an electric stack battery group. The pressure drop measurement device includes a water tank for storing cooling water for testing, a bipolar plate fixture structure for clamping the bipolar plate to be measured, a circulation pipeline connecting the water tank and the bipolar plate fixture structure, and a The pressure detection structure on the top; the circulation pipeline includes the water inlet pipe connecting the water outlet of the water tank and the liquid inlet of the bipolar plate fixture structure, the return water pipe connecting the liquid outlet of the bipolar plate fixture structure and the water return port of the water tank, and the water return pipe located at A pressure pump and a pressure regulating valve on the water inlet pipe; the pressure detection structure includes an inlet pressure gauge arranged on the water inlet pipe and an outlet pressure gauge arranged on the return water pipe. The invention can solve the problem in the related art that the cooling pressure drop of the bipolar plate cannot be measured and the uniformity of the bipolar plate cannot be guaranteed.
Description
technical field [0001] The invention relates to the technical field of fuel cells, in particular to a bipolar plate cooling liquid pressure drop measurement device and a method for stacking battery packs. Background technique [0002] Fuel cell is a device that directly converts chemical energy in fuel into electrical energy. Usually fuel is hydrogen and methanol. Because of its environmental protection and high energy conversion efficiency, it has been widely valued by governments and multinational companies and is considered to be the first choice in the 21st century. clean and efficient power generation. Among them, the proton exchange membrane fuel cell is the most widely studied, and many manufacturers have realized its application. During the continuous and stable power generation process of the proton exchange membrane fuel cell, a large amount of heat will be generated. Since the common operating temperature of the proton exchange membrane fuel cell is about 80 degr...
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IPC IPC(8): G01L13/00H01M8/247
CPCG01L13/00H01M8/247Y02E60/50
Inventor 刘煜恒覃博文
Owner DONGFENG MOTOR CORP HUBEI