Integrated heat management system for new energy electric vehicle batteries and control method thereof

Abstract

The invention relates to an integrated heat management system for new energy electric vehicle batteries and a control method thereof. The output end of a temperature sensor is connected with a batteryelectrode temperature acquisition module; an RISC (reduced instruction set computer) circuit control system is connected with the battery electrode temperature acquisition module and is also connected with a heating TEC (thermoelectric cooler) module and a cooling TEC module; a thermal balance heat pipe is pacakaged in an equalizing plate; the front end of a heat transfer heat pipe is connected with the equalizing plate; the tail end of the heat transfer heat pipe is connected with an energy storage unit; the middle of the heat transfer heat pipe is connected with the heating TEC module and the cooling TEC module; heat is guided out of a battery box via the heat transfer heat pipe, so that the heat dissipation problem of the inner closed space of the battery box is solved; the heating TECmodule is electrified to produce heat to heat up the battery box; the cooling TEC module is electrified to absorb heat so as to cool the battery box. The problem can be solved herein that the prior art has control complexity and poor battery temperature control uniformity.

Description

technical field [0001] The invention relates to a new energy electric vehicle. Specifically, it relates to a new energy electric vehicle battery comprehensive heat management system and a control method. Background technique [0002] The main functions of new energy vehicle battery thermal management include: effectively cooling the battery when the temperature is high to prevent thermal runaway caused by excessive battery temperature; heating the battery when the temperature is low to raise the battery temperature to ensure that the battery Charging, discharging performance and safety at low temperature; reduce the temperature difference between battery cells, maintain the consistency of the operating temperature of the battery cells, prevent the battery at a higher temperature from decaying too fast, and improve the overall life of the battery pack. [0003] According to the different heat transfer media, the thermal management and cooling methods of new energy vehicle ba...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a comprehensive heat management system for new energy electric vehicle batteries, which has a wide range of applicable temperature, takes up less three-dimensional space, has a compact and simple sealing design for the battery box, is easy to install, and has good dustproof and waterproof effects. The thermal effect is good, which can solve the problems of complex control and poor consistency of battery temperature control in the prior art; the purpose of the present invention is also to provide a control method for a new energy electric vehicle battery comprehensive thermal management system

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