CN217111363U - Lithium ion battery leak detection device - Google Patents
Lithium ion battery leak detection device Download PDFInfo
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- CN217111363U CN217111363U CN202220878380.9U CN202220878380U CN217111363U CN 217111363 U CN217111363 U CN 217111363U CN 202220878380 U CN202220878380 U CN 202220878380U CN 217111363 U CN217111363 U CN 217111363U
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- lithium ion
- ion battery
- detection device
- water
- leak detection
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Abstract
The utility model discloses a lithium ion battery small opening detection device, including top board and bottom plate, the top board activity is located on the bottom plate, be equipped with the draw-in groove in the top board, be equipped with the color-changing paper that absorbs water in the draw-in groove, be equipped with the upper coil in the top board, be equipped with the lower coil in the lower mounting, the utility model belongs to the technical field of battery detection, specifically indicate a lithium ion battery small opening detection device convenient to test.
Description
Technical Field
The utility model belongs to the technical field of the battery detects, specifically indicate a lithium ion battery small opening detection device.
Background
The lithium ion battery generally comprises an electric core, a shell and a cover plate, wherein the electric core is arranged in the shell, then the cover plate and the shell are packaged by laser welding, a welding seam can be formed between the cover plate and the shell in the laser welding process, and the phenomenon of leakage holes at the welding seam is easily caused due to the influence of the defects, operation defects, cover plate impurities, aluminum shell impurities and the like of the welding technology. And the leak hole is difficult to effectively screen through manual work or inspection instrument in the production manufacturing process because the aperture is less, if the equipment is gone into the car after, has the risk of leaking electrolyte, can't guarantee lithium ion battery's safety in utilization. The existing lithium ion battery leakage detection device generally leads to a battery, a welding seam is positioned at the bottom layer, then test paper is placed below a cover plate, whether leakage occurs or not is judged by observing whether color reaction occurs on the test paper, the method can not completely detect the lithium ion battery with the leakage hole, the leakage phenomenon does not occur in hundreds of percent because the position and the shape of the leakage hole determine that the inverted lithium ion battery also does not necessarily occur, and the electrolyte in the lithium ion battery is generally packaged in an aluminum-plastic film, and the electrolyte can only leak under the condition that the packaging of the aluminum-plastic film is not tight, so the electrolyte is not easy to leak, only the risk of leakage exists in the use process of the lithium ion battery, and then the risk of electrolyte leakage can also be caused by the existence of the leakage hole. Therefore, the prior art cannot completely detect the lithium ion battery with the leak.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a lithium ion battery small opening detection device convenient to test.
In order to realize the above functions, the utility model discloses the technical scheme who takes as follows: the utility model provides a lithium ion battery small opening detection device, includes top board and bottom plate, the top board activity is located on the bottom plate, be equipped with the draw-in groove in the top board, be equipped with the color-changing paper that absorbs water in the draw-in groove, after the color-changing paper that absorbs water is stained with water, the colour can change, be equipped with the coil in the top board, be equipped with the iron core in the coil, can produce magnetic field after the circular telegram, be equipped with the lower coil in the bottom mounting, be equipped with the iron core in the lower coil, can produce magnetic field after the circular telegram, the magnetic field that the coil produced with the lower coil is different, and the top board is located on the bottom mounting through magnetic adsorption.
Preferably, the bottom wall of the upper pressure plate is provided with a sealing gasket, and when the upper pressure plate and the lower fixing piece are adsorbed, the sealing gasket can play a sealing effect.
The battery case opening to be tested is buckled in the storage cavity, the upper pressing plate and the lower fixing piece are adsorbed and then extrude the bag-shaped pad, and the bag-shaped pad is extruded and attached to the battery case opening to be sealed.
Further, be equipped with the inlet tube in the lower mounting diapire and keep in the chamber, the inlet tube with keep in the chamber through connection, external water source passes through the inlet tube and carries water to the intracavity of keeping in.
The upper wall of the temporary storage cavity is provided with a water outlet hole in a penetrating way, and water in the temporary storage cavity is conveyed into the battery shell; when the battery case has pores, water is discharged from the pores, and the water-absorbing color-changing paper changes color after being soaked in the water.
The utility model adopts the above structure to gain beneficial effect as follows: the utility model provides a lithium ion battery leak hole detection device, easy operation, compact structure, reasonable in design, be equipped with the iron core in the upper coil, can produce the magnetic field after the circular telegram, be equipped with the iron core in the lower coil, can produce the magnetic field after the circular telegram, the magnetic field that upper coil and lower coil produced is different, the top board is located on the lower mounting through magnetic adsorption; the sealing gasket can play a role in sealing, the bag-shaped gasket is extruded after the upper pressing plate and the lower fixing piece are adsorbed, and the bag-shaped gasket is extruded and attached to the opening of the battery shell to seal the battery shell; conveying the water in the temporary storage cavity into the battery shell; when the battery case has pores, water is discharged from the pores, and the water-absorbing color-changing paper changes color after being soaked in the water.
Drawings
Fig. 1 is a front view of a lithium ion battery leak detection device provided by the present invention;
fig. 2 is a front view of an upper pressure plate of the lithium ion battery leak detection device provided by the present invention;
fig. 3 is a front view of a lower fixing member of the lithium ion battery leak detection apparatus provided by the present invention;
fig. 4 is a top view of the lower fixing member of the lithium ion battery leak detection device provided by the present invention.
The water-absorbing color-changing paper comprises an upper pressing plate 1, an upper pressing plate 2, a lower fixing plate 3, a clamping groove 4, water-absorbing color-changing paper 5, an upper coil 6, a lower coil 7, a sealing gasket 8, a storage cavity 9, a bag-shaped gasket 10, a water inlet pipe 11, a temporary storage cavity 12 and a water outlet hole.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the utility model provides a lithium ion battery leak detection device, including top board 1 and bottom plate 2, top board 1 activity is located on bottom plate 2, be equipped with draw-in groove 3 in the top board 1, be equipped with water-absorbing discoloring paper 4 in the draw-in groove 3, after water-absorbing discoloring paper 4 is stained with, the colour can change, be equipped with upper coil 5 in the top board 1, be equipped with the iron core in the upper coil 5, can produce magnetic field after the circular telegram, be equipped with bottom coil 6 in the bottom plate, be equipped with the iron core in the bottom coil 6, can produce magnetic field after the circular telegram, the magnetic field that upper coil 5 and bottom coil 6 produced is different, top board 1 is located on the bottom plate through magnetic adsorption; be equipped with sealed 7 on the 1 diapire of top board, when top board 1 and lower mounting adsorb, sealed 7 of filling up can play sealed effect.
As shown in fig. 1, 2, 3 and 4, a storage cavity 8 is arranged in the lower fixing member, a bag-shaped pad 9 is arranged in the storage cavity 8, a battery shell opening to be tested is buckled in the storage cavity 8, the bag-shaped pad 9 is extruded after the upper pressure plate 1 and the lower fixing member are adsorbed, and the bag-shaped pad 9 is extruded and attached to the battery shell opening to be sealed; a water inlet pipe 10 and a temporary storage cavity 11 are arranged in the bottom wall of the lower fixing piece, the water inlet pipe 10 is communicated with the temporary storage cavity 11, and an external water source conveys water into the temporary storage cavity 11 through the water inlet pipe 10; the upper wall of the temporary storage cavity 11 is provided with a water outlet hole 12 in a penetrating way, and water in the temporary storage cavity 11 is conveyed into the battery shell; when the battery case has pores, water is discharged from the pores, and the water-absorbing color-changing paper 4 changes color when it is wetted with water.
When the device is used specifically, a battery shell opening to be tested is buckled in the storage cavity 8, the iron core is arranged in the upper coil 5 and can generate a magnetic field after being electrified, the iron core is arranged in the lower coil 6 and can generate a magnetic field after being electrified, the magnetic fields generated by the upper coil 5 and the lower coil 6 are different, the upper pressure plate 1 is arranged on the lower fixing piece through magnetic adsorption, the bag-shaped pad 9 is extruded after the upper pressure plate 1 and the lower fixing piece are adsorbed, and the bag-shaped pad 9 is extruded and attached to the battery shell opening to be sealed; conveying the water in the temporary storage cavity 11 to the battery shell; when the battery case has pores, water is discharged from the pores, and the water-absorbing color-changing paper 4 changes color when it is wetted with water.
The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.
Claims (5)
1. The utility model provides a lithium ion battery small opening detection device which characterized in that: the water-absorbing color-changing paper fixing device comprises an upper pressing plate and a lower fixing piece, wherein the upper pressing plate is movably arranged on a lower fixing plate, a clamping groove is formed in the upper pressing plate, water-absorbing color-changing paper is arranged in the clamping groove, an upper coil is arranged in the upper pressing plate, and a lower coil is arranged in the lower fixing piece.
2. The lithium ion battery leak detection device of claim 1, wherein: and a sealing gasket is arranged on the bottom wall of the upper pressure plate.
3. The lithium ion battery leak detection device of claim 2, wherein: a storage cavity is arranged in the lower fixing piece, and a bag-shaped pad is arranged in the storage cavity.
4. The lithium ion battery leak detection device of claim 3, wherein: be equipped with inlet tube and the chamber of keeping in the lower mounting diapire, the inlet tube with keep in the chamber through connection.
5. The lithium ion battery leak detection device of claim 4, wherein: and the upper wall of the temporary storage cavity is provided with a water outlet hole in a penetrating way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220878380.9U CN217111363U (en) | 2022-04-15 | 2022-04-15 | Lithium ion battery leak detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220878380.9U CN217111363U (en) | 2022-04-15 | 2022-04-15 | Lithium ion battery leak detection device |
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| Publication Number | Publication Date |
|---|---|
| CN217111363U true CN217111363U (en) | 2022-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220878380.9U Active CN217111363U (en) | 2022-04-15 | 2022-04-15 | Lithium ion battery leak detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116183142A (en) * | 2023-04-27 | 2023-05-30 | 浙江白鹿源科技有限公司 | Air tightness detection process for battery box |
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2022
- 2022-04-15 CN CN202220878380.9U patent/CN217111363U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116183142A (en) * | 2023-04-27 | 2023-05-30 | 浙江白鹿源科技有限公司 | Air tightness detection process for battery box |
| CN116183142B (en) * | 2023-04-27 | 2023-08-11 | 浙江白鹿源科技有限公司 | Air tightness detection process for battery box |
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