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Battery pressure test method and test system based on explosion-proof mathematical model

A mathematical model and pressure test technology, applied in the direction of applying stable tension/pressure to test the strength of materials, etc., to achieve the effect of high test accuracy and improved production efficiency

Active Publication Date: 2015-10-28
深圳金山电池有限公司
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AI Technical Summary

Problems solved by technology

[0003] In order to control the air pressure accurately and continuously, a digital pressure controller is used to control the pressure change with a numerical control program; but the digital pressure controller is only suitable for low pressure (less than 1Mpa)

Method used

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  • Battery pressure test method and test system based on explosion-proof mathematical model
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  • Battery pressure test method and test system based on explosion-proof mathematical model

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Embodiment Construction

[0042] see Figure 1 ~ Figure 3 , the present invention provides a battery pressure test method based on an explosion-proof mathematical model of a power battery, which includes the following steps:

[0043] (1) A computer control terminal 1 is set, which includes an embedded intelligent control chip integrated with dynamic pressure monitoring simulation software, a memory, and a display screen;

[0044] (2) Set a low-pressure pump, a low-pressure pump intake valve, a first pressure regulating valve, a first air filter, a first air pressure gauge, a solenoid valve, and two flow valves connected in sequence through the low-pressure gas passage ;A high-pressure pump, a high-pressure pump intake valve, a second pressure regulating valve, a second air filter, a second barometer, an air control proportional valve, and a pressure sensor connected sequentially through the high-pressure gas passage are set; A digital pressure controller is set again, the first pressure gauge is conne...

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Abstract

The invention discloses a battery pressure testing method based on an explosion-proof mathematical model of a power battery. The method comprises the following steps: (1) setting a computer control terminal; (2) setting a low pressure pump, a high pressure pump and related parts; (3) setting a double-opening cover; (4) setting a battery testing device; (5) setting an industrial personal computer; (6) turning on a power supply to be positioned in an operating state, wherein a battery to be detected is pressed by partial low-pressure gas in the low pressure pump, a high-pressure channel is communicated with an air inlet of the battery, and a pneumatic proportional valve is controlled through the partial low-pressure gas; and (7) introducing gas of the high-pressure pump to the battery to be detected for testing the pressure, delivering the current analog quantity received by the industrial personal computer to the computer control terminal for processing, obtaining a time-gas pressure value changing curve, displaying the curve on a display screen, and storing the current analog quantity in a storage device, wherein a reliable experimental data basis is provided for research of battery performance parameters. The invention also discloses a test system for realizing the method.

Description

technical field [0001] The invention relates to the technical field of battery pressure detection, and more specifically, relates to a battery pressure test method and a test system based on an explosion-proof mathematical model. Background technique [0002] It is to prevent explosion when the battery fails, and to test the withstand voltage value of the battery. The previous test method is to charge the battery with a high voltage instantaneously, which cannot reflect the real situation of the gradual and slow increase in the pressure inside the battery. And it is not possible to know exactly how much pressure to charge and explode. (that is, the withstand voltage value of the battery). There are no clear guidelines for subsequent improvements in battery production. The present invention uses continuous and slow boosting instead, realizes digital control on the pressure, and can simulate the environment when the battery fails. And it is displayed on the display screen ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/12
Inventor 吴崇安杨志
Owner 深圳金山电池有限公司
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