US 12,334,608 B1
Device and method for evaluating heat capacity of test platform of hydrogen fuel cell system
Dong Hao, Tianjin (CN); Yanyi Zhang, Tianjin (CN); Zhixin Wu, Tianjin (CN); Xuan Liu, Tianjin (CN); Minghui Ma, Tianjin (CN); Guang Chen, Tianjin (CN); Jicheng Ma, Tianjin (CN); Xiangyang Chen, Tianjin (CN); Xin Zhao, Tianjin (CN); Zirong Yang, Tianjin (CN); and Daokuan Jiao, Tianjin (CN)
Assigned to CATARC NEW ENERGY VEHICLE TEST CENTER (TIANJIN) CO., LTD., Tianjin (CN); and CHINA AUTOMOTIVE TECHNOLOGY AND RESEARCH CENTER CO., LTD., Tianjin (CN)
Filed by CATARC NEW ENERGY VEHICLE TEST CENTER (TIANJIN) CO., LTD., Tianjin (CN); and CHINA AUTOMOTIVE TECHNOLOGY AND RESEARCH CENTER CO., LTD., Tianjin (CN)
Filed on Jan. 27, 2025, as Appl. No. 19/037,664.
Claims priority of application No. 202410140668.X (CN), filed on Feb. 1, 2024.
Int. Cl. H01M 8/04 (2016.01); H01M 8/0432 (2016.01)
CPC H01M 8/04373 (2013.01) [H01M 8/04358 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A device for evaluating a heat dissipation capability of a test platform of a hydrogen fuel cell system, comprising:
a test stand of a fuel cell system and a simulated heating device; wherein
the test stand of the fuel cell system includes a primary test stand of the fuel cell system, a water inlet of a primary dispersion system, a water outlet of the primary dispersion system, a water outlet of a secondary dispersion system, and a water inlet of the secondary dispersion system;
the simulated heating device includes a liquid transmission pipeline, a water pump, a plurality of PTC heaters, a relay power supply, one or more switches, an electrical signal transmission line, a plurality of electromagnetic relays, a PTC power supply, and an expansion water tank;
the device for evaluating a heat dissipation capability is configured to perform a primary heat dissipation capability test and a secondary heat dissipation capability test;
when the primary heat dissipation capability test is performed,
a cooling medium is supplied to the PTC heaters through the liquid transmission pipeline by the water pump and is heated, the heated cooling medium is transferred to the water inlet of the primary dispersion system of the test stand of the fuel cell system through the liquid transmission pipeline, and is heat-dissipated by the primary dispersion system of the primary test stand of the fuel cell system, wherein in a primary dispersion water channel, gas is removed from the water channel and a water level warning is provided through a branch water channel of the expansion water tank;
when the secondary heat dissipation capability test is performed,
the cooling medium is supplied to the PTC heaters through the liquid transmission pipeline by a built-in water pump in the primary test stand of the fuel cell system and is heated, wherein the heated cooling medium is transferred to the water inlet of the secondary dispersion system through the liquid transmission pipeline, and is heat-dissipated by the secondary dispersion system of the primary test stand of the fuel cell system;
wherein the PTC heaters in the primary heat dissipation capability test and the secondary heat dissipation capability test are powered by the PTC power supply;
the PTC heaters, the PTC power supply, and the electromagnetic relays are connected in series;
wherein the switches control on/off of the electromagnetic relays to determine whether the PTC heaters work and whether the cooling medium is heated; and
each of the plurality of PTC heaters is provided with one switch and one electromagnetic relay, so as to independently control the PTC heater;
wherein the plurality of PTC heaters which are connected in series or in parallel simulate the fuel cell system with different heating powers, and operating states of the plurality of PTC heaters are controlled by using the switches to simulate operating conditions under low, medium, and high powers and operating conditions under small, medium, and large variable load amplitudes for the fuel cell system.