A battery thermal management system, its control method, and a vehicle air conditioning system

A technology for battery thermal management and heat exchange media, which is applied in battery temperature control, battery/fuel cell control devices, batteries, etc., and can solve problems such as the inability to improve heat dissipation and energy storage efficiency of composite phase change materials

Active Publication Date: 2021-02-09
GLOBAL ENERGY INTERCONNECTION RES INST EURO GMBH +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the embodiments of the present invention is that the battery thermal management system in the prior art cannot improve the heat dissipation and energy storage efficiency of the composite phase change material

Method used

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  • A battery thermal management system, its control method, and a vehicle air conditioning system
  • A battery thermal management system, its control method, and a vehicle air conditioning system
  • A battery thermal management system, its control method, and a vehicle air conditioning system

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Embodiment 1

[0046] Embodiments of the present invention provide a battery thermal management system, such as figure 1 As shown, it includes a first heat storage device 1, the first heat storage device 1 includes a phase change material 11 filled in its interior, a first circulation channel of the heat exchange medium is formed through the phase change material 11, and the first heat storage device 1 A sealed cavity is formed inside the sealed cavity, and a battery pack 12 is arranged in the sealed cavity, and also includes: a circulation pipeline 2, which is provided with a heat exchange medium, and forms a circulation loop with the first circulation channel of the heat exchange medium; a heating device 3, It is used to heat the heat exchange medium in the circulation pipeline 2, and when the current temperature of the heat exchange medium is lower than the first preset threshold, the heat exchange medium is heated; Heat medium, when the current temperature of the heat exchange medium is ...

Embodiment 2

[0057] The battery thermal management system in the embodiment of the present invention, such as figure 2 As shown, it includes a first heat storage device 1, the first heat storage device 1 includes a phase change material 11 filled in its interior, a first circulation channel of the heat exchange medium is formed through the phase change material 11, and the first heat storage device 1 A sealed cavity is formed inside the sealed cavity, and a battery pack 12 is arranged in the sealed cavity, and also includes: a circulation pipeline 2, which is provided with a heat exchange medium, and forms a circulation loop with the first circulation channel of the heat exchange medium; a heating device 3, It is used to heat the heat exchange medium in the circulation pipeline 2, and when the current temperature of the heat exchange medium is lower than the first preset threshold, the heat exchange medium is heated; Heat medium, when the current temperature of the heat exchange medium is...

Embodiment 3

[0064] Embodiments of the present invention provide a vehicle air conditioning system, such as image 3As shown, it includes a first heat storage device 1, the first heat storage device 1 includes a phase change material 11 filled in its interior, a first circulation channel of the heat exchange medium is formed through the phase change material 11, and the first heat storage device 1 A sealed cavity is formed inside the sealed cavity, and a battery pack 12 is arranged in the sealed cavity, and also includes: a circulation pipeline 2, which is provided with a heat exchange medium, and forms a circulation loop with the first circulation channel of the heat exchange medium; a heating device 3, It is used to heat the heat exchange medium in the circulation pipeline 2, and when the current temperature of the heat exchange medium is lower than the first preset threshold, the heat exchange medium is heated; Heat medium, when the current temperature of the heat exchange medium is hig...

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Abstract

The invention discloses a battery thermal management system and its control method, and a vehicle air-conditioning system, wherein the battery thermal management system includes a first heat storage device, the first heat storage device includes a phase change material filled inside it, and the first heat storage device There is also a battery pack inside the device, which also includes: a circulation pipeline, which is provided with a heat exchange medium inside, a heating device for heating the heat exchange medium in the circulation pipeline; a heat dissipation device for heat exchange in the heat dissipation circulation pipeline. The heat medium, the heat exchange container, is used to store the heat exchange medium; the circulation pump is arranged in the circulation pipeline, between the heat exchange container and the first heat storage device, and is used to circulate and output the heat exchange medium. In the present invention, while using the phase change material to store heat in combination with the first heat storage device, when the temperature of the heat exchange medium is too high or too low, heating and heat dissipation can be performed respectively through heating equipment or heat dissipation equipment, thereby ensuring the temperature of the battery pack Constant, prolong the service life of the battery pack, and improve the thermal management efficiency of the battery pack.

Description

technical field [0001] The invention relates to the technical field of battery thermal management, in particular to a battery thermal management system and a control method thereof, and a vehicle air conditioning system. Background technique [0002] The battery is one of the core components of an electric vehicle or a hybrid vehicle, and its performance directly affects the performance of the electric vehicle or hybrid vehicle. For example, the power battery pack used in electric vehicles will generate heat during the charging and discharging process, which will increase the overall temperature of the battery pack. When the temperature is too high, it will seriously affect the performance and life of the battery, and even cause the battery to fail directly. On the one hand, during charging and discharging, the uneven heat dissipation or heat release of each battery pack module will cause the battery to fail. The battery with high local temperature will age faster, and its l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/613H01M10/615H01M10/625H01M10/63H01M10/633H01M10/6551H01M10/6568H01M10/659H01M10/663B60L58/26B60L58/27
CPCB60L58/26B60L58/27H01M2220/20H01M10/613H01M10/615H01M10/625H01M10/63H01M10/633H01M10/6551H01M10/6568H01M10/659H01M10/663Y02E60/10Y02T10/70
Inventor 雷宪章谯耕蓝元良金露
Owner GLOBAL ENERGY INTERCONNECTION RES INST EURO GMBH
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