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Rapid optimization method for power battery air cooling system runner interval

An air-cooled system and power battery technology, applied in secondary batteries, electrochemical generators, design optimization/simulation, etc., can solve the problems of lack of battery spacing optimization methods, and achieve simple implementation, fast optimization speed, and increased flow The effect of resistance

Active Publication Date: 2018-05-15
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is still a lack of fast and effective cell spacing optimization methods

Method used

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  • Rapid optimization method for power battery air cooling system runner interval
  • Rapid optimization method for power battery air cooling system runner interval
  • Rapid optimization method for power battery air cooling system runner interval

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0028] This embodiment provides a method for quickly optimizing the flow channel spacing of the power battery air-cooling system. The flow chart of the method is as follows figure 1 shown, including the following steps:

[0029] S-1. Set the initial spacing of the cooling channels to a uniform spacing according to the total volume of the power battery air cooling system, and set the number of adjustments to the cooling channel spacing, the size Δd of each spacing adjustment, and the flow rate of each cooling channel relaxation factor r i ;

[0030] S-2. Using the numerical method to calculate the velocity field corresponding to the power battery air-cooling system distributed at the initial spacing, and obtain the air flow Q of each cooling channel i , combined with the set flow relaxation factor r for each cooling channel i , to calculate the equivalent air flow Q’ for each cooling channel i =Q i ×r i , and the standard deviation of the corresponding equivalent air flow...

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Abstract

The invention discloses a rapid optimization method for a power battery air cooling system runner interval. The method comprises the steps that beginning from the uniform runner interval, velocity distribution of an air cooling system is solved through numerical values, by analyzing the flow distribution between cooling runners, the runner with the minimum flow and the runner with the maximum floware determined, then, the interval of the runner with the minimum flow is increased, and the interval of the runner with the maximum flow is decreased; speed distribution of the system is calculatedagain every time the runner interval is adjusted, and therefore the next runner interval adjustment is performed; when the frequency for runner interval adjustment reaches the set frequency, the layout of the runner interval with the minimum cooling runner equivalent flow standard deviation in the process is adjusted, and the final runner interval optimization result is obtained. The rapid optimization method has the advantages of being simple in optimization process, high in optimization speed, good in performance index, good in expansibility, high in practicability and the like.

Description

technical field [0001] The invention relates to the field of power battery air-cooling systems, in particular to a method for quickly optimizing the flow channel spacing of the power battery air-cooling system. Background technique [0002] In order to alleviate the damage of traditional automobiles to the atmospheric environment, electric vehicles have attracted people's attention and been vigorously developed. The power battery is the power source of electric vehicles and maintains the continuous operation of electric vehicles. During the working process, the power battery generates a lot of heat, which will increase the temperature of the battery and increase the internal temperature difference. Excessive temperature will cause the battery to fail or even be damaged, resulting in safety accidents; excessive temperature difference will destroy the consistency of the battery pack, resulting in a decrease in the overall performance of the battery pack and shortening the lif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06Q10/04H01M10/613H01M10/617H01M10/625H01M10/6557H01M10/6561
CPCG06F30/20G06F2119/06G06F2119/08G06Q10/04H01M10/613H01M10/617H01M10/625H01M10/6557H01M10/6561Y02E60/10
Inventor 陈凯汪双凤
Owner SOUTH CHINA UNIV OF TECH
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