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A power battery thermal management system

A heat management system and power battery technology, applied in the field of cooling and heat preservation systems, can solve the problems of increasing the volume and energy consumption of the heat dissipation system, and failing to meet the compact requirements of electric vehicles, etc., to achieve compact structure, reduce occupied space, reduce The effect of device volume

Active Publication Date: 2017-10-27
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ordinary air-cooled and water-cooled systems require a lot of equipment to cooperate, which increases the size and energy consumption of the cooling system, and cannot meet the compact requirements of electric vehicles.

Method used

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  • A power battery thermal management system
  • A power battery thermal management system
  • A power battery thermal management system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: As shown in the figure, a power battery thermal management system includes a cooler 3, a non-powered vacuum drainage device and a battery box 10. There are multiple sets of batteries 1 arranged in the battery box 10, and each set of batteries 1 is wound with The heat transfer branch pipe 2, the battery box 10 is provided with a heat transfer main pipe 11 and a lower heat transfer main pipe 12, the upper end of the heat transfer branch pipe 2 is fixedly connected with the heat transfer main pipe 11, and the lower end of the heat transfer branch pipe 2 is connected with the lower heat transfer pipe The heat transfer main pipeline 12 is fixedly connected, and the non-powered vacuum drainage device includes an air inlet pipe 6 and a drainage box 7. An air pipe 71 and a liquid pipe 72 are fixedly arranged in the drainage box 7, and the diameter of the inlet end of the air pipe 71 is greater than the diameter of the outlet end. The air inlet pipe 6 is fixed and c...

Embodiment 2

[0020] Embodiment 2: As shown in the figure, a power battery thermal management system includes a cooler 3, a non-powered vacuum drainage device and a battery box 10. There are multiple sets of batteries 1 arranged in the battery box 10, and each set of batteries 1 is wound with The heat transfer branch pipe 2, the battery box 10 is provided with a heat transfer main pipe 11 and a lower heat transfer main pipe 12, the upper end of the heat transfer branch pipe 2 is fixedly connected with the heat transfer main pipe 11, and the lower end of the heat transfer branch pipe 2 is connected with the lower heat transfer pipe The heat transfer main pipeline 12 is fixedly connected, and the non-powered vacuum drainage device includes an air inlet pipe 6 and a drainage box 7. An air pipe 71 and a liquid pipe 72 are fixedly arranged in the drainage box 7, and the diameter of the inlet end of the air pipe 71 is greater than the diameter of the outlet end. The air inlet pipe 6 is fixed and c...

Embodiment 3

[0021] Embodiment 3: As shown in the figure, a power battery thermal management system includes a cooler 3, a non-powered vacuum drainage device, a battery box 10, and a heat preservation liquid storage box 5. There are multiple groups of batteries 1 arranged in the battery box 10, each The battery pack 1 is wound with a heat transfer branch pipe 2, and the battery box 10 is provided with a heat transfer main pipe 11 and a lower heat transfer main pipe 12, the upper end of the heat transfer branch pipe 2 is fixedly connected with the heat transfer main pipe 11, and the heat transfer branch The lower end of the pipeline 2 is fixedly communicated with the lower heat transfer main pipeline 12. The unpowered vacuum drainage device includes an air inlet pipe 6 and a drainage box 7. An air pipe 71 and a liquid pipe 72 are fixedly arranged in the drainage box 7. The inlet end of the air pipe 71 The diameter is greater than the diameter of the outlet end, the inlet end of the air inlet...

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PUM

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Abstract

The invention discloses a power battery thermal management system featured by comprising a cooler, an unpowered vacuum drainage device and a battery box; a number of sets of batteries are arranged in the battery box; heat conductive branch pipelines are winded on each set of batteries; the upper ends of the heat conductive branch pipelines are communicated with the unpowered vacuum drainage device; the lower ends of the heat conductive branch pipelines are communicated with the cooler; the cooler is communicated with the unpowered vacuum drainage device through a first pipeline. The invention is advantaged by that the system realizes circulation of cooling liquid through the unpowered vacuum drainage device, compared with the traditional wind cooling or water cooling system, the device size and the occupied space are reduced, the energy consumption is reduced, the structure of an electrical vehicle can be made more compact, phase change fluid is taken as cooling media, because the heat loading density of the phase change fluid is great and the phase change temperature interval is relatively narrow, the circulation flow of the cooing media is greatly saved, and the temperature of the engine cylinder is more even.

Description

technical field [0001] The invention relates to a cooling and heat preservation system for a power battery in an electric vehicle, in particular to a heat management system for a power battery. Background technique [0002] With the rapid development of electric vehicles, batteries, as one of the core components that directly affect the performance of electric vehicles, have attracted more and more attention to their performance, especially lithium-ion batteries, which are currently well used in electric vehicle power battery packs. However, because lithium-ion batteries are very sensitive to temperature changes, during use and storage, excessively high or low temperatures will affect their reliability and safety performance. Therefore, the existing battery packs are designed with air-cooled or water-cooled system for cooling the battery. However, ordinary air-cooled and water-cooled systems require a lot of equipment to cooperate, which increases the size and energy consum...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/613H01M10/625H01M10/6567
CPCH01M2220/20Y02E60/10
Inventor 邹得球马先锋吴峰
Owner NINGBO UNIV