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Pure electric vehicle cooling system

A pure electric vehicle and cooling system technology, which is applied in the field of the cooling system of pure electric vehicle batteries, can solve the problems that the cooling performance affects the battery efficiency, the battery life and the use safety, etc. The effect of improving battery life

Active Publication Date: 2020-05-12
ZHEJIANG IND & TRADE VACATIONAL COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the power battery of electric vehicles is a lithium-ion battery, and the performance of the lithium-ion power battery is sensitive to temperature changes. The cooling performance of the power battery directly affects the efficiency of the battery, and also affects the battery life and safety.

Method used

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Examples

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Embodiment Construction

[0017] The present invention will be described in further detail below in conjunction with the embodiments given in the accompanying drawings.

[0018] refer to Figure 1 to Figure 7 As shown, a pure electric vehicle cooling system in this embodiment includes a chassis 1, a bracket 2, a battery pack 3, a cooling pipeline 4, a first cooling pump 5, a second cooling pump 6, a first cooling valve 7, The second cooling valve 8 and the exchanger 9, the bracket 2, the first cooling pump 5, the second cooling pump 6 and the exchanger 9 are arranged on the chassis 1, the exchanger 9 is arranged on one side of the bracket 2, and the cooling pipeline 4 is bent and arranged on the bracket 2, and a plurality of groove structures are formed on the bracket 2. The battery pack 3 is placed in the groove structure and is in contact with the cooling pipeline 4. The cooling pipeline 4 includes a first pipe 41 and a second pipe 41. Two pipes 42, the first pipe 41 is provided with a first inlet a...

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Abstract

The invention discloses a cooling system of a pure electric automobile. The cooling system comprises a chassis, a bracket, a battery pack, a cooling pipeline, a first cooling pump, a second cooling pump, a first cooling valve, a second cooling valve and an exchanger. The cooling pipeline comprises a first pipe and a second pipe. The first cooling pump, the first cooling valve, the first pipe and afirst exchanging area mutually communicate to constitute a first cooling loop, the second cooling pump, the second cooling valve, the second pipe and a second exchanging area mutually communicate toconstitute a second cooling loop, and the first cooling loop and the second cooling loop are opposite in direction. Through arrangement, the battery pack is cooled through the first cooling loop and the second cooling loop which are opposite in direction, the situations that during unidirectional cooling, the battery cooling effect on the front portion is good and poor on the rear portion, and consequently battery pack cooling is uneven, and the electric quantity is unstable due to uneven battery pack cooling are avoided, and it is ensured that the battery pack operates stably.

Description

technical field [0001] The invention relates to a battery cooling system, in particular to a cooling system for a pure electric vehicle battery. Background technique [0002] At present, the power battery of electric vehicles is a lithium-ion battery, and the performance of the lithium-ion power battery is sensitive to temperature changes. The cooling performance of the power battery directly affects the efficiency of the battery, and also affects the battery life and safety. Because the battery itself will generate a certain amount of heat during the charging and discharging process, resulting in temperature rise, and the temperature rise will affect many characteristic parameters of the battery, such as internal resistance, voltage, SOC, available capacity, charge and discharge efficiency and battery life. In order to maximize the performance and life of the battery pack, it is necessary to optimize the structure of the battery pack, conduct thermal management on it, incre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L58/33B60K1/00
CPCB60K1/00B60K2001/005B60L58/33Y02T90/16Y02T90/40
Inventor 徐文斐
Owner ZHEJIANG IND & TRADE VACATIONAL COLLEGE
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