Thermal management system and thermal management method of battery pack of electric automobile

A thermal management system and technology for electric vehicles, applied in the field of thermal management of electric vehicle battery packs, can solve problems such as easy liquid leakage and complex circulation structure, and achieve the effect of realizing heat dissipation and cooling capacity

Active Publication Date: 2012-12-19
CHERY AUTOMOBILE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of liquid circulation stru

Method used

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  • Thermal management system and thermal management method of battery pack of electric automobile
  • Thermal management system and thermal management method of battery pack of electric automobile
  • Thermal management system and thermal management method of battery pack of electric automobile

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Embodiment Construction

[0022] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0023] Such as Figure 4 As shown, the thermal management system of the electric vehicle battery pack includes a battery pack 1, the battery pack 1 includes a cold plate for cooling fluid circulation, the system also includes a water tank 3 connected to the battery 1 pack, and a water pump 4 connected to the water tank 3 , the water pump 4 is connected to the water inlet of the three-way valve 5, and the two water outlets of the three-way valve 5 are respectively connected to a positive temperature coefficient thermistor PTC heater 6 and a radiator 7, and the PTC heater 6 and the radiator 7 are connected to On the battery pack 1, the above-mentioned components are connected through coolant pipes. The coolant pipeli...

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Abstract

The invention discloses a thermal management system and a thermal management method of a battery pack of an electric automobile. The thermal management system comprises the battery pack and further comprises a water pump, wherein the battery pack comprises a cooling plate for cooling liquid to flow circularly; the water pump is connected with the battery pack; the water pump is connected to a water inlet of a three-way valve; each of two water outlets of the three-way valve is connected with a PTC (Positive Temperature Coefficient) heater and a radiator; the PTC heaters and the radiators are connected on the battery pack; and all components mentioned above are connected with one another through cooling liquid pipelines. The thermal management system disclosed by the invention is a feasible and reliable thermal management structure by which the battery pack is cooled in a way of liquid cooling, wherein heat of batteries is taken away by the cooling plate, and isolation of the cooling plate from the batteries is achieved by adopting a heat-conducting insulation board; in addition, radiating and cooling abilities of the entire battery pack are achieved by employing the water pump, the radiators, the PTC heaters, etc.

Description

technical field [0001] The invention relates to a thermal management system and a thermal management method of an electric vehicle battery pack, belonging to the field of thermal management of the electric vehicle battery pack. Background technique [0002] At present, rechargeable batteries used as power sources cannot work normally in extreme low temperature and high temperature environments, which makes electric vehicles that use them as a source of energy unable to work normally. Therefore, it is necessary to perform thermal management on the battery pack of the rechargeable battery to ensure that the battery pack can work normally. At present, the battery pack is usually filled with circulating fluid. When the temperature of the battery pack is too low and needs to be heated, the battery pack is heated by the circulating flow of the hot circulating fluid inside and outside the battery pack. The circulating fluid circulates inside and outside the battery pack to cool do...

Claims

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Application Information

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IPC IPC(8): H01M10/50H01M2/10B60K11/00H01M10/617H01M10/625H01M10/63H01M10/65
CPCY02E60/12Y02E60/10
Inventor 杜鸿震阎小军
Owner CHERY AUTOMOBILE CO LTD
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