Battery heat management system with heat pipes with temperature self-adaption function coupled to single-phase liquid loop to transfer heat

Abstract

The invention discloses a battery heat management system with heat pipes with a temperature self-adaption function coupled to a single-phase liquid loop to transfer heat, relates to a battery heat management system, and aims at solving the problem that an existing battery heat management system cannot ensure that a power battery can be within a reasonable temperature range under any work condition. A cold plate is embedded inside the center of a power battery box; single power batteries are clamped between battery slots and the cold plate, and the sides, adjacent to the cold plate, of the single power batteries are in contact with the sides of the cold plate; a heat pipe evaporation section is attached to the side of each single power battery; the heat pipes are laid on the sides of the single power batteries; a phase-change material fills the power battery box; an inlet and an outlet of a liquid runner are connected with a pipe fitting; the cold plate, the pipe fitting and a water pump form the single-phase liquid loop, and are coupled to a refrigerating system of an electric car through a heat exchanger; a programmable thermostat is electrically connected with the pump; a probe of a temperature sensor is attached to the battery and electrically connected with the programmable thermostat. The battery heat management system is applied to heat management of the power battery.

Description

technical field [0001] The invention relates to a battery heat management system, in particular to a battery heat management system in which a heat pipe with a temperature self-adaptive function is coupled with a single-phase liquid circuit for heat exchange. Background technique [0002] Under the huge challenge of energy and environmental issues, the development of new energy vehicles has become an inevitable trend, so various countries attach great importance to the development of new energy vehicles. At present, new energy vehicles mainly include hybrid vehicles, pure electric vehicles, fuel cell electric vehicles and solar vehicles and other new energy vehicles. As a representative of new energy vehicles, electric vehicles have become a hot spot in the development of new energy vehicles because of their direct motor drive and zero-emission environmental reliability. [0003] The power battery is the power source for the operation of electric vehicles, and there is an o...

AI Technical Summary

Problems solved by technology

In the state of complete phase change, phase change materials not only cannot exert their heat storage performance, but also make it difficult to export heat from the battery due to low thermal conductivity; Very easy to damage, in high temperature environment, the heat transfer performance will be reduced or even fail

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