A device and method for testing the corrosion resistance of a plastic case of a traction battery

A technology for power storage batteries and testing methods, which is applied in the direction of measuring devices, lead-acid batteries, battery pack components, etc., which can solve the problems of easy corrosion of battery casings, leakage of oily substances, cracking, etc., and avoid batch quality problems , The effect of convenient test method

Active Publication Date: 2021-09-07
ZHEJIANG TIANNENG BATTERY JIANGSU +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a power storage battery plastic casing corrosion resistance testing device and its method, which overcomes the defects of the prior art and solves the problem of rubber pads made of recycled rubber, which will ooze oily substances, making the battery casing prone to corrosion and cracking quality problems

Method used

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  • A device and method for testing the corrosion resistance of a plastic case of a traction battery
  • A device and method for testing the corrosion resistance of a plastic case of a traction battery
  • A device and method for testing the corrosion resistance of a plastic case of a traction battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: as figure 1 , figure 2 The shown one kind of test device for corrosion resistance of the molded case of power storage battery includes a middle cover 1 and a pressing device 2. The pressing device 2 includes a fixing frame 21, a horizontal pallet 22, and a locking device 23. The fixing The frame 21 is U-shaped and the U-shaped opening faces to the left. The left end of the bottom plate is integrally connected with a vertical support rod 24. The top of the support rod 24 is welded with a horizontal pallet 22 on which a middle Cover 1; the left end of the top plate of the fixing frame 21 is provided with a locking device 23, and the locking device 23 fixes the rubber pad 3 at the center of the top surface of the middle cover 1; the locking device 23 includes locking bolts 25. Pressing plate 26, limit nut A27, limit nut B28, the screw rod of the locking bolt 25 runs through the top plate of the fixing frame 21 from top to bottom and is connected with the pr...

Embodiment 2

[0038] 1. Cut out a square rubber pad with a side length of 25mm, and place it on the top surface of the middle cover;

[0039] 2. Place the pressure plate on the top surface of the rubber pad, and use the torque wrench to tighten the locking bolt. When the locking bolt presses the pressure plate, the torque value of the control torque wrench is: 20Nm;

[0040] 3. The whole device is placed in a high and low temperature box, the temperature is set at 60°C, and the time is 60h;

[0041] 4. After the time is over, take out the whole device, let it cool down to room temperature 25°C, and take out the rubber pad, observe the change of the surface color of the middle cover and compare the average hardness values ​​X1, X2, X3, X4, X5, X6, X7, The difference Y between X8, X9 and X (set the value of X to be 81):

[0042]

[0043] In terms of color change, the area of ​​S1 turns yellow, and it is preliminarily judged that it has been corroded; and according to the comparison of the d...

Embodiment 3

[0047] 1. Cut out a square rubber pad with a side length of 25mm, and place it on the top surface of the middle cover;

[0048] 2. Place the pressure plate on the top surface of the rubber pad, and tighten the locking bolt with a torque wrench. When the locking bolt presses the pressure plate,

[0049] Control the torque value of the torque wrench: 20Nm;

[0050] 3. The whole device is placed in a high and low temperature box, the temperature is set at 60°C, and the time is 60h;

[0051] 4. After the time is over, take out the whole device, let it cool down to room temperature 25°C, and take out the rubber pad, observe the change of the surface color of the middle cover and compare the average hardness values ​​X1, X2, X3, X4, X5, X6, X7, The difference Y between X8, X9 and X (set the value of X to be 81):

[0052]

[0053] In terms of color change, there is no obvious change in the S1 area, and it is preliminarily judged that it has not been corroded; and according to th...

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Abstract

The invention discloses a power storage battery molded case corrosion resistance test device and a method thereof, which include a middle cover and a pressing device, the pressing device includes a fixing frame, a horizontal support platform, and a locking device, and the fixing frame is in the form of a U-shaped and U-shaped opening facing left, the left end of the bottom plate is integrally connected with a vertical support rod, the top of the support rod is welded with a horizontal platform, and a middle cover is placed on the horizontal platform; the top plate of the fixing frame The left end is provided with a locking device, and the locking device fixes the rubber pad on the top surface of the middle cover. It can be seen from the structure of the present invention that the test method is convenient and fast. The rubber pad is rapidly released from the oily substance through high pressure and high temperature technology, and the hardness of the middle cover in the area covered by the rubber pad is compared with the hardness of other areas of the middle cover by observing the color change of the rubber pad. Data, quickly determine whether the rubber pad has corrosion on the middle cover, so as to avoid batch quality problems of the product.

Description

technical field [0001] The invention relates to the field of storage battery testing, in particular to a device for testing the corrosion resistance of a molded casing of a power storage battery and a method thereof. Background technique [0002] Lead-acid batteries have mature technology, low cost, and excellent performance. They are widely used in many application fields and become the power source of choice for the public. As one of the parts of the lead-acid battery, the battery case is used to carry the pole group, electrolyte, etc. The battery case is often made of ABS, which is cheap, has good acid and alkali resistance, high strength and good processing sex. [0003] However, the ABS material is sensitive to engine oils. Once the surface of the battery case is stained with organic oils, it is easy to cause corrosion and cracks. At present, the entire manufacturer installs rubber pads on the battery brackets of electric vehicles to cushion, and some manufacturers us...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N17/00G01N3/40H01M50/262H01M10/06
CPCG01N3/40G01N17/00G01N17/002G01N2203/0076H01M10/06Y02E60/10
Inventor 李军陈战营孙磊胡国柱
Owner ZHEJIANG TIANNENG BATTERY JIANGSU
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