Heat management assembly for battery module, battery module and vehicle

Abstract

The invention relates to a heat management assembly for a battery module, a battery module comprising the heat management assembly, and a vehicle comprising the battery module. The heat management assembly comprises a heat conduction piece, a fixed bottom plate, radiating fins and a Peltier device, wherein the heat conduction piece is suitable for being arranged inside the battery module and directly contacted with a battery cell of the battery module; the fixed bottom plate is fixed on a shell which defines a battery cavity of the battery module, and is attached to the heat conduction piece;the radiating fins are fixed on the fixed bottom plate by means of at least one fixing component; and the Peltier device is arranged between the fixed bottom plate and the radiating fins and is used for cooling / heating the battery cell. The heat management assembly integrates cooling, heating and constant temperature functions required by the battery module, has no risk of cooling liquid leakage,can lighten the battery module, and solves the problem of large temperature difference between the upper part and the lower part during cooling / heating of the battery cell, so that the temperature ofthe battery module is controlled within the optimal range.

Description

technical field [0001] The present invention relates to the technical field of thermal management of battery modules, and more particularly, the present invention relates to a thermal management component for battery modules. The invention also relates to a battery module comprising such a thermal management assembly, and to a vehicle, in particular an electric vehicle or a hybrid vehicle, comprising such a battery module. Background technique [0002] In order to improve the safety of the thermal management system of the battery module (especially the power battery module of the electric vehicle or hybrid vehicle), and ensure the heat dissipation efficiency and the accuracy of temperature regulation, it is known that the Peltier device can be used to achieve Thermal management of battery modules. [0003] Document CN106549197A discloses a temperature control method of a battery module implemented by means of a Peltier device. This method keeps the temperature difference in...

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the defects in the above-mentioned prior art, and to provide a thermal management assembly for a battery module. This thermal management assembly integrates the cooling, heating and constant temperature functions required by the battery module, enabling the The battery module is lightweight, and solves the problem of large temperature difference between the upper and lower sides when the battery core is cooled / heated, so that the temperature of the battery module is controlled within the optimal range, so that the overall life of the battery module is longer

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