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Vacuum test device for battery pack case

A technology of vacuum test and battery pack, which is used in liquid/vacuum degree measurement for liquid tightness, and by measuring the acceleration and deceleration rate of fluid. Time-consuming and labor-intensive, long test time and other problems, to achieve the effect of improving test efficiency, ensuring reliability, and satisfying batch delivery

Inactive Publication Date: 2019-01-11
WUHU QINHUI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a vacuum test device for the battery pack case, which is an equivalent replacement test device for the waterproof performance test of the battery pack case, and has solved the problem of long test time and wiping the outer surface of the battery pack case after the test in the prior art. Water stains are time-consuming and labor-intensive, and it is difficult to meet the requirements of batch delivery

Method used

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  • Vacuum test device for battery pack case
  • Vacuum test device for battery pack case
  • Vacuum test device for battery pack case

Examples

Experimental program
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Embodiment 1

[0021] Such as Figure 1-Figure 3 As shown, in this embodiment, the battery pack casing vacuum test device includes a control box 7 and a device body 1 . The device body 1 has a rectangular structure, and a plurality of pneumatic clamps 3 are arranged around it, and an upright frame 2 matching the side shape of the battery pack casing is arranged inside. A layer of sealing ring 4 is pasted on the upper surface of the upright frame 2 . The upright frame 2 is provided with several support frames for supporting the inner surface of the battery pack shell or supporting beams. A vacuumed air pipe is also provided in the upright frame 2 , and the vacuumed air pipe is connected to the control box 7 through a pipeline 8 . The trachea of ​​evacuating can be provided with a plurality of being arranged around upright frame 2 inboards, can evacuate evenly.

[0022] Since the support beam is fixed inside the battery pack case, the support frame includes a high support frame 6 supporting...

Embodiment 2

[0028]The difference between this embodiment and Embodiment 1 lies in the clamper. In this embodiment, a manual clamper is used instead of the pneumatic clamper 3 . The manual clamp includes a clamp base 91, a bracket 92 fixed on the clamp base 91, a compression rod 94 hinged on the outer side of the upper end of the bracket 92, and fixed on the end of the compression rod 94 The clamping column 95 at the top and the connecting rod 93 hinged on the inner side of the lower part of the bracket 92, the connecting rod 93 is U-shaped, the lower end is hinged on the bracket 92 from both sides, and the upper end is for pressing the pressing bracket 92. A curved section of the tight rod 94, on which a handle 96 is also fixed. When there is no air source in the detection area, it is difficult to adapt to the pneumatic clamp 3. At this time, it can be replaced by a manual clamp. The manual clamp has a simple structure, is easy to implement, and is not affected by devices such as air sour...

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Abstract

The invention discloses a vacuum test device for a battery pack case, comprising a control box and a device body. The device body has a rectangular structure. Several clamps are arranged around the device body, an upright frame matched with the side shape of the battery pack case is disposed inside the device body, and a layer of sealing ring is attached to the upper surface of the upright frame.A plurality of support frames and an air pipe for vacuuming are arranged in the upright frame. The air pipe for vacuuming is connected to the control box through a pipeline. The control box is provided with a vacuum pump, a vacuum pressure gauge, an alarm and a timer. The pipeline is connected to the vacuum pump through a three-way valve. The other end of the three-way valve is connected to the vacuum pressure gauge through a pipeline. The alarm is electrically connected to the vacuum pressure gauge. The vacuum test device for the battery pack case replaces the waterproof performance test device equivalently, not only ensures the test result is reliable, but also improves the overall test efficiency by more than 10 times, thereby meeting the needs of customers for bulk delivery.

Description

technical field [0001] The invention relates to the field of new energy vehicles, in particular to a vacuum test device for a battery pack shell. Background technique [0002] With the country's higher and higher requirements for environmental protection, the pure electric new energy vehicle industry, which has the advantages of combining electrification and low-carbon energy, is developing rapidly. The lower casing of the battery pack used to load the battery pack on the new energy vehicle is a square box body composed of dozens of stamped and formed metal sheet parts welded together. After the product is manufactured, the design requires 100% waterproof performance test. The prior art is to place the airtight battery pack case in a water tank with a water storage depth of more than one meter on the bottom surface and no less than 0.15 meters above the top, and then take it out after 30 minutes to check whether there is any water mark in the case. This test method takes a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/26
CPCG01M3/26
Inventor 张欣吴斌戴志伟
Owner WUHU QINHUI TECH