Supercapacitor thermal management system and method for tramcar

Abstract

The invention discloses a supercapacitor thermal management system and method for a tramcar. The system comprises a supercapacitor module group formed by the array arrangement of a plurality of supercapacitor units, a rotating valve, cooling fins, a phase change substrate, a control circuit, a driver, a gas flow channel, an inner box and an outer box. The direction of a gas flow is changed throughthe adjustment and cooperation of the rotating valve in the cooling gas flow channel, thereby achieving the reciprocating flowing of the cooling gas flow. The supercapacitor module group composed ofthe plurality of supercapacitor units is immersed into the phase change substrate and is sealed in the inner box. The cooling fins are respectively disposed between the rows of the supercapacitor module group, and extend out of the top cover of the inner box. Moreover, the cooling fins extend towards the gas flow channel. The system can achieve the uniform heat dissipation of the supercapacitors for the tramcar, effectively reduces the temperature difference of all regions in the supercapacitor module group, enables the supercapacitors to remain better consistence, prolongs the service life and improving the economical performances.

Description

technical field [0001] The invention belongs to the technical field of trams, and in particular relates to a supercapacitor thermal management system and method for trams. Background technique [0002] As the environmental pollution problems caused by urban traffic congestion and vehicle exhaust emissions continue to ferment, the development of urban public transportation and the increase in the application of new energy technologies have become the hot spots of urban transportation development. At present, the non-catenary type modern trams that are focused on development generally use high-energy supercapacitors as auxiliary power supplies. Due to the limited space of trams and the difficulty of utilizing the windward effect, it is more difficult for supercapacitors to dissipate heat. In the process, heat will accumulate rapidly and lead to high temperature in the middle area of ​​the supercapacitor module. If the various areas cannot be cooled effectively in time, the tem...

AI Technical Summary

Problems solved by technology

After the cooling air is introduced into the outer box, it enters from the left side of the module and flows out from the right side in the form of serial ventilation. The air is heated during the flow. The temperature of the regional module is higher than that on the left side, resulting in a temperature gradient of the supercapacitor monomer in the module, which seriously affects its power output and service life

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