Hydrogen fuel cell automobile thermal management system

Abstract

The invention discloses a hydrogen fuel cell automobile thermal management system. The hydrogen fuel cell automobile thermal management system comprises a first cooling loop (1) and a second cooling loop (2); the first cooling loop (1) cools a hydrogen fuel electric reactor (11); a first radiator (12), the hydrogen fuel electric reactor (11) and a circulating pump (13) are arranged on the first cooling loop (1); the first cooling loop (1) comprises a first branch (101) with a deionizater (14); the second cooling loop (2) cools a hydrogen fuel cell auxiliary system and an electric drive system;a second radiator (21), an electronic water pump (22), an air compressor driving motor (23), an air compressor controller (24), a DC / DC converter (25), a motor controller (26) and a vehicle driving motor (27) are arranged on the second cooling loop (2); and the first radiator (12) and the second radiator (21) are placed in the vehicle running direction in series. The hydrogen fuel cell automobilethermal management system has the characteristics of good heat radiation effect and controllable hydrogen fuel cell cooling liquid electrical conductivity.

Description

technical field [0001] The invention relates to the technical field of new energy vehicles, in particular to a heat management system for a hydrogen fuel cell vehicle. Background technique [0002] A hydrogen fuel cell is a power generation device that converts chemical energy into electrical energy by electrochemically reacting hydrogen with oxygen in the air. Its power generation efficiency is generally around 50%. It is beneficial to the electrochemical reaction, but it will also have an adverse effect on the life of the proton exchange membrane. If the control is unreasonable, it will cause water flooding or the proton membrane to dry up, which will adversely affect the performance of the hydrogen fuel cell. Therefore, it is very necessary for electric vehicles to thermally manage the hydrogen fuel cells inside them. [0003] At present, the thermal management system of hydrogen fuel cell electric vehicles uses a deionizer in the coolant circulation loop to remove condu...

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Problems solved by technology

[0005] Although the thermal management system of hydrogen fuel cell electric vehicles in the prior art has a deionizer in the coolant circulation circuit to remove conductive ions in the coolant, this setting cannot control the circulation volume of the coolant, so that the cooling The conductivity of the liquid is uncontrollable. At the same time, due to the high resistance of the deionizer, the heat exchange volume of the main circulation loop is low, and the energy consumption of the system is large.

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