Heat exchanger and thermal management facility for batteries of electric or hybrid vehicles

Abstract

The present invention concerns a heat exchanger (1; 1') comprising a device (2) for circulating a first heat-transfer fluid having an inlet (3) for first heat-transfer fluid and an outlet (4) for first heat-transfer fluid, between which a first heat-transfer fluid is intended to circulate, characterised in that the heat exchanger comprises a housing (5) receiving the device (2) for circulating a first heat-transfer fluid, the housing (5) comprising: - at least one opening (7) for inserting the inlet and outlet (3, 4) for first heat-transfer fluid of the device (2) for circulating a first heat-transfer fluid, - an inlet (8) for second heat-transfer fluid and an outlet (9) for second heat-transfer fluid, between which a second heat-transfer fluid is intended to circulate. The present invention also concerns a thermal management facility (100) for batteries of electric or hybrid vehicles.

Description

technical field [0001] The present invention relates to heat exchangers and thermal management devices for batteries of electric or hybrid vehicles. Background technique [0002] The thermal regulation of batteries, especially in the field of motor vehicles, must be strictly controlled. In fact, if subjected to low temperatures, the battery life will be significantly reduced. Additionally, if the battery is exposed to excessive heat, damage may result. [0003] To regulate the temperature of the battery, a heat exchanger, which uses a heat transfer fluid, is usually used in direct contact with the battery. The heat transfer fluid can thereby absorb heat emitted by the battery or batteries to cool the battery and remove said heat, for example via one or more other heat exchangers. [0004] Some heat exchangers, known as dual flow fluid heat exchangers, have first and second tubes stacked alternately in contact with each other. [0005] A first heat transfer fluid flows in...

AI Technical Summary

Problems solved by technology

[0006] However, the efficiency of heat exchange is limited by the common exchange surface of the first and second tubes

[0007] Additionally, the combined thickness of the walls of the first and second tubes creates a significant thermal resistance, limiting heat transfer

[0008] Furthermore, such heat exchangers can be significantly heavy and expensive

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