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Device for regulating the temperature of a battery using a dielectric fluid, and battery pack comprising such a device

A technology of dielectric fluid and equipment, applied in the direction of batteries, secondary batteries, high-efficiency regulation technology, etc., can solve the problems of increasing the cost and weight of battery packs, and achieve the effect of uniform cooling

Pending Publication Date: 2020-08-28
VALEO SYST THERMIQUES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] From a thermal point of view, both technologies perform well, especially since direct contact is established between the liquid and the cells, but this has the disadvantage of using a large amount of dielectric liquid, which increases the cost and weight of the battery pack

Method used

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  • Device for regulating the temperature of a battery using a dielectric fluid, and battery pack comprising such a device
  • Device for regulating the temperature of a battery using a dielectric fluid, and battery pack comprising such a device
  • Device for regulating the temperature of a battery using a dielectric fluid, and battery pack comprising such a device

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Embodiment Construction

[0036] Such as figure 1 As shown, the invention relates to a device 1 for regulating the temperature of a battery. The battery includes at least one energy storage unit 100 . It is especially electric vehicle batteries. The battery here includes four cells 100, but this is only an illustrative example and the battery may include a greater number of cells.

[0037] In order for the batteries to function correctly, it is desirable to keep their temperature within a narrow range of values, in particular between 20 and 40°C. The device according to the invention has in particular the function of performing such temperature regulation.

[0038] The device 1 comprises a dielectric fluid flow path 10 and wetting means 12 for wetting the surface of a cell 100 with the dielectric fluid 3 . The dielectric fluid flow path 10 may be formed by a plurality of dielectric fluid 3 supply conduits or supply lines 11 , which supply the wetting means 12 .

[0039] According to various embodi...

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Abstract

A device for regulating the temperature of a battery comprising at least one energy storage cell, said device comprising a dielectric fluid circuit, said circuit comprising means for spraying the surface of said cell with said dielectric fluid.

Description

technical field [0001] The invention relates to a device for regulating the temperature of cells of a battery using a dielectric fluid. The invention also relates to a battery pack comprising said device and a plurality of battery cells. It is intended in particular to equip motor vehicles, in particular electric or hybrid motor vehicles. Background technique [0002] As the market share represented by electric vehicles continues to grow, the issue of cooling / heating the battery packs they are equipped with is becoming of strategic importance. The goal is to design the best performing, efficient and economical battery thermal management device possible. [0003] Typically, to meet the cooling / heating needs of the battery, a "heat exchanger" is used comprising a cold plate with circulation of liquid coolant, said plate being in contact with the unit to be cooled. This technique results in uneven cooling of the battery, which limits battery life and performance. These devi...

Claims

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Application Information

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IPC IPC(8): F28C1/00F28C3/00H01M10/625H01M10/6569H01M10/6567
CPCF28C1/00F28C3/005H01M2220/20H01M10/625H01M10/6569H01M10/6567Y02E60/10Y02B30/70H01M10/613H01M10/615H01M10/6568
Inventor K.阿祖兹A.玛梅里
Owner VALEO SYST THERMIQUES
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