CN217738575U - Vacuum helium detection equipment for detecting air tightness of product - Google Patents
Vacuum helium detection equipment for detecting air tightness of product Download PDFInfo
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- CN217738575U CN217738575U CN202123358728.6U CN202123358728U CN217738575U CN 217738575 U CN217738575 U CN 217738575U CN 202123358728 U CN202123358728 U CN 202123358728U CN 217738575 U CN217738575 U CN 217738575U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model provides a vacuum helium detection equipment for detecting product gas tightness, including battery case placing unit, battery case placing unit includes the test box, be provided with the battery case mounting panel in the test box, the battery case mounting panel passes through the installed part installation battery case on it, the top of test box is provided with the sealing door that can open and shut; detect the gas tightness unit, it includes first cylinder to detect the gas tightness unit, the flexible end fixedly connected with of first cylinder is with the supplementary breather plate that the battery case osculum was plugged up, set up the first cavity with the intercommunication of battery case osculum in the supplementary breather plate, appearance is examined to fixed mounting has the helium in the test box. The utility model discloses the vacuum pump that sets up can take out the helium in the battery case for the helium can not leak the detection effect that influences the helium and examine the appearance, great promotion the detection accuracy of device.
Description
Technical Field
The utility model relates to a helium examines the device field, especially relates to a vacuum helium examines equipment for detecting product gas tightness.
Background
For the consumer electronics industry, the safety performance of lithium batteries is very high (applied to intelligent equipment such as mobile phones, watches, bluetooth headsets and the like), and if the batteries leak, and lithium ion solutions contact air, the danger of combustion and explosion exists. Therefore, battery manufacturers need to test the sealability of lithium batteries. For a specific production process, a battery manufacturer needs to perform sealing detection on a battery case raw material, a battery case and a battery finished product respectively to ensure quality.
The battery shell can be understood as a small closed cavity, and a small hole (a liquid injection hole) is formed in the cavity. The purpose of the tightness detection is to detect whether the battery shell has leakage except for the liquid injection hole, and the helium detection technology is adopted in the detection. The conventional detection procedure is as follows:
1. placing the battery in a sealed detection cavity
2. Vacuum pump is used for vacuumizing the detection cavity (because of the existence of the battery liquid injection hole, the inside of the battery is synchronously vacuumized)
3. Plugging the liquid injection hole, and injecting helium gas into the battery through the liquid injection hole (at the moment, the inside of the battery is helium gas, the outside is in a vacuum state, and if the battery leaks, the helium gas can enter a vacuum detection cavity)
4. The helium detector starts to detect the concentration of helium in the cavity so as to judge whether the sealing performance reaches the standard
5. The liquid injection hole is loosened, helium in the battery is released to the test cavity, and the test cavity and the interior of the battery are vacuumized again by the vacuum pump
6. And injecting nitrogen into the cavity (breaking the vacuum state), and opening the cavity to take out the battery.
A problem is encountered in the practice of using this method: when helium is released in the step 5 and vacuum is pumped again, helium can remain in the test cavity, although the residual quantity is very weak, for helium detection with very high sensitivity, the test result can be influenced after the residual quantity is gradually accumulated. In practice, after 10-15 times of continuous tests, the test result exceeds 10% of the OK/NG judgment standard; after 50 times of continuous tests, the test result exceeds 20 percent of the OK/NG judgment standard, and the test result is influenced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome the defect that prior art exists, the utility model provides a vacuum helium detects equipment for detecting product gas tightness.
In order to solve the technical problem, the utility model discloses a technical scheme is: a vacuum helium testing apparatus for testing the hermeticity of a product, comprising:
the battery case placing unit comprises a test box, a battery case mounting plate is arranged in the test box, a battery case is mounted on the battery case mounting plate through a mounting piece on the battery case mounting plate, and a sealing door capable of being opened and closed is arranged at the top of the test box;
the device comprises a gas tightness detecting unit, a gas tightness detecting unit and a gas tightness detecting unit, wherein the gas tightness detecting unit comprises a first cylinder, an auxiliary vent plate for plugging a small opening of a battery case is fixedly connected to the telescopic end of the first cylinder, a first cavity communicated with the small opening of the battery case is formed in the auxiliary vent plate, two second cavities are formed in the outer wall of the auxiliary vent plate and communicated with the first cavity, one second cavity is communicated with a vacuum pump through a first pipeline, the other second cavity is communicated with a helium pump through a third pipeline, a second pipeline is connected to the test box in a penetrating manner, one end of the second pipeline, which is arranged outside the test box, is communicated with the vacuum pump, and a helium detector is fixedly installed in the test box;
the vacuum breaking unit comprises a pipeline penetrating through the test box, and a valve is arranged on the pipeline.
The automatic material receiving and box closing mechanism comprises an auxiliary mounting plate fixed on the inner wall of the test box, a sliding rail is arranged on one side of the auxiliary mounting plate, and a hinge rod is connected in the sliding rail in a sliding manner;
the test box is rotatably connected with a first rotating column, the outer wall of the first rotating column is fixedly connected with a connecting rod, the outer wall of the connecting rod is slidably connected with a sliding block, the sliding block is hinged with the hinged rod, and the top of the hinged rod is fixedly connected with the battery case mounting plate; the test box is provided with an operation mechanism which enables the first rotating column to rotate circumferentially;
the last rotation of test box is connected with two second and rotates the post, two the equal fixedly connected with sealing door of post is rotated to the second, two sealing door can with the test box top is sealed, one of them the second rotate the post with the cover is equipped with first belt between the first post of rotating, be provided with on the second rotates the post and makes another second rotate the post and do opposite synchronous circular motion's power unit.
Further, the running mechanism comprises a first gear fixed on the first rotating column, a second cylinder is arranged on the test box, a rack is fixedly connected to the power end of the second cylinder, the rack is meshed with the first gear, a limiting groove is formed in the test box, and the rack is connected to the limiting groove in a limiting sliding mode.
Furthermore, the power mechanism comprises a second gear arranged on the outer wall of one of the second rotating columns, the testing box is connected with a rotating column in a rotating mode, the rotating column is connected with a third gear in a rotating mode, the second gear is meshed with the third gear, and a second belt is sleeved between the rotating column and the other second rotating column.
Furthermore, one side of the two sealing doors which are far away from each other is provided with a first rubber block, and the bottom of the first rubber block is arc-surface-shaped.
Furthermore, two one side that sealing door is close to each other has been seted up smooth chamber, sliding chamber sliding connection has the second block rubber, smooth chamber with be provided with the elastic component between the second block rubber.
Furthermore, valves are arranged on the first pipeline, the second pipeline and the third pipeline.
Compared with the prior art, the beneficial effects of the utility model include: the vacuum pump can pump out helium in the battery shell, so that the helium cannot leak to influence the detection effect of the helium detector, and the detection accuracy of the device is greatly improved;
the automatic material receiving box closing mechanism can automatically move the battery case mounting plate to the outside, so that the battery case can be accurately placed, and therefore subsequent helium filling and vacuum suction are facilitated.
Drawings
The disclosure of the present invention is explained with reference to the drawings. It is to be understood that the drawings are designed solely for the purposes of illustration and not as a definition of the limits of the invention. In the drawings, like reference numerals are used to refer to like elements throughout. Wherein:
fig. 1 schematically shows a schematic partial cross-sectional view of an overall proposed structure according to an embodiment of the present invention;
fig. 2 schematically shows a schematic overall structure according to an embodiment of the present invention;
fig. 3 schematically shows an enlarged structural diagram at a according to an embodiment of the present invention;
fig. 4 schematically shows an enlarged structural diagram at B according to an embodiment of the present invention.
Reference numbers in the figures: 1. a test box; 2. a first rotating column; 3. a connecting rod; 4. a slider; 5. a hinged lever; 6. a helium detector; 7. a slide rail; 8. an auxiliary mounting plate; 9. a battery case mounting plate; 10. a vacuum pump; 11. a helium pump; 12. a first conduit; 13. A second conduit; 14. a third pipeline; 15. a second rotating cylinder; 16. a first rubber block; 17. a sealing door; 18. a second rubber block; 19. a slide chamber; 20. an auxiliary aeration panel; 21. a first cavity; 22. a second cavity; 23. a first cylinder; 24. a first gear; 25. a rack; 26. a second cylinder; 27. a limiting groove; 28. a first belt; 29. a second gear; 30. a third gear; 31. a second belt.
Detailed Description
It is easily understood that, according to the technical solution of the present invention, under the spirit of the present invention, a person skilled in the art can propose various alternative structural modes and implementation modes. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical solutions of the present invention, and should not be considered as limiting or restricting the technical solutions of the present invention in their entirety or in any other way.
An embodiment according to the present invention is shown in connection with fig. 1-4. A vacuum helium detection device for detecting the air tightness of a product comprises a battery case placing unit, wherein the battery case placing unit comprises a test box 1, a battery case mounting plate 9 is arranged in the test box 1, a battery case is mounted on the battery case mounting plate 9 through a mounting piece on the battery case mounting plate, and the top of the test box 1 is provided with a sealing door 17 which can be opened and closed;
the device comprises a gas tightness detecting unit, wherein the gas tightness detecting unit comprises a first cylinder 23, an auxiliary vent plate 20 for plugging a small opening of a battery case is fixedly connected to the telescopic end of the first cylinder 23, a first cavity 21 communicated with the small opening of the battery case is formed in the auxiliary vent plate 20, two second cavities 22 are formed in the outer wall of the auxiliary vent plate 20, the two second cavities 22 are communicated with the first cavity 21, one second cavity 22 is communicated with a vacuum pump 10 through a first pipeline 12, the other second cavity 22 is communicated with a helium pump 11 through a third pipeline 14, a second pipeline 13 is connected to the test box 1 in a penetrating manner, one end of the second pipeline 13, which is arranged outside the test box 1, is communicated with the vacuum pump 10, and a helium detector 6 is fixedly installed in the test box 1;
the vacuum breaking unit comprises a pipeline penetrating through the test box 1, and a valve is arranged on the pipeline. When the air tightness of the battery case needs to be detected, firstly, the sealing door 17 is opened, the battery case is fixedly arranged at the top of the battery case mounting plate 9, then, the sealing door 17 is closed, the vacuum pump 10 is started to vacuumize the air of the test box 1 through the second pipeline 13, at the moment, the air in the battery case is sucked into vacuum through the small holes in the battery case, at the moment, the first air cylinder 23 is started, the first air cylinder 23 drives the auxiliary vent plate 20 to plug the small holes of the battery case, at the moment, the helium pump 11 is started to fill the motor case with helium through the third pipeline 14, the second cavity 22 and the first cavity 21, at the moment, whether helium exists is detected through the helium detector 6, so that whether the battery case leaks air is judged, then the helium is pumped out through the vacuum pump 10 and the first pipeline 12, and at the method avoids the helium leakage, so that the detection result of the helium detector 6 is wrong. The accuracy of detection is greatly improved. The vacuum was broken by opening the valve and the cell case was removed.
The automatic material receiving and box closing mechanism comprises an auxiliary mounting plate 8 fixed on the inner wall of the test box 1, a slide rail 7 is arranged on one side of the auxiliary mounting plate 8, and a hinge rod 5 is slidably connected in the slide rail 7;
the testing box 1 is rotatably connected with a first rotating column 2, the outer wall of the first rotating column 2 is fixedly connected with a connecting rod 3, the outer wall of the connecting rod 3 is slidably connected with a sliding block 4, the sliding block 4 is hinged with a hinge rod 5, and the top of the hinge rod 5 is fixedly connected with a battery case mounting plate 9; the test box 1 is provided with an operation mechanism which enables the first rotating column 2 to rotate circumferentially;
the last rotation of test box 1 is connected with two second and rotates post 15, and two second rotate the equal fixedly connected with sealing door 17 of post 15, and two sealing doors 17 can be with 1 top seal of test box, and one of them second rotates the cover between post 15 and the first post 2 and is equipped with first belt 28, and the second rotates and is provided with on the post 15 and makes another second rotate the power unit that post 15 is opposite synchronous circular motion. Start the operation mechanism and make 2 circumferential rotations of first rotation post, 2 drive connecting rod 3 rotations of circumferential rotation's first rotation post, cooperation sliding block 4, slide rail 7 makes hinge bar 5 be the up-and-down motion, up-and-down motion's hinge bar 5 drives battery case mounting panel 9 upward movement, pivoted first rotation post 2 drives second rotation post 15 through first belt 28 this moment and rotates, pivoted second rotation post 15 makes another second rotate post 15 and be reverse circular motion through power unit, thereby make two second rotation posts 15 drive two sealing door 17 and do and open sealing door 17 action.
Specifically, the running mechanism comprises a first gear 24 fixed on the first rotating column 2, a second cylinder 26 is arranged on the test box 1, a rack 25 is fixedly connected to the power end of the second cylinder 26, the rack 25 is meshed with the first gear 24, a limiting groove 27 is formed in the test box 1, and the rack 25 is connected to the limiting groove 27 in a limiting sliding mode. The second cylinder 26 is actuated to make the rack 25 move vertically upward, and the rack 25 drives the first gear 24 to rotate circumferentially. The first gear 24 drives the first rotary column 2 to rotate circularly.
Specifically, power unit is including setting up the second gear 29 in one of them second rotation post 15 outer wall, rotates on test box 1 and is connected with the rotary column, and the rotary column rotates and is connected with third gear 30, and second gear 29 and third gear 30 intermeshing are equipped with second belt 31 between rotary column and another second rotation post 15. The second rotary column 15 drives the second gear 29 to rotate circumferentially, the second gear 29 makes the third gear 30 and the rotary column rotate circumferentially through meshing action, and the rotary column makes the other second rotary column 15 make reverse circumferential rotation through the second belt 31.
Specifically, a first rubber block 16 is arranged on one side, away from each other, of the two sealing doors 17, and the bottom of the first rubber block 16 is arc-surface-shaped. So that the sealing effect of the sealing door 17 is better.
Specifically, one side of each of the two sealing doors 17, which is close to each other, is provided with a sliding cavity 19, the sliding cavity 19 is slidably connected with a second rubber block 18, and an elastic part is arranged between the sliding cavity 19 and the second rubber block 18. Another embodiment provides a better sealing of the sealing door 17.
Specifically, the first pipeline 12, the second pipeline 13 and the third pipeline 14 are all provided with valves. Controlling the circulation of the pipeline.
In this embodiment, when the airtightness of the battery case needs to be detected, the second cylinder 26 is started, so that the rack 25 moves vertically upward, and the rack 25 drives the first gear 24 to rotate circumferentially. The first gear 24 drives the first rotary column 2 to rotate circularly. First rotation post 2 of circumference pivoted drives connecting rod 3 and rotates, cooperation sliding block 4, slide rail 7 makes articulated mast 5 be the up-and-down motion, up-and-down motion's articulated mast 5 drives battery case mounting panel 9 upward movement, pivoted first rotation post 2 drives second rotation post 15 through first belt 28 this moment and rotates, second rotation post 15 drives second gear 29 circumferential rotation, second gear 29 makes third gear 30 and rotary column circumferential rotation through the meshing effect, the rotary column makes another second rotation post 15 be reverse circle turnover through second belt 31, thereby make two second rotation posts 15 drive two sealing door 17 and do and open sealing door 17 action. The battery case is fixedly arranged at the top of the battery case mounting plate 9, then the second cylinder 26 is started to close the sealing door 17, the vacuum pump 10 is started to vacuumize air in the test box 1 through the second pipeline 13, at the moment, air in the battery case is sucked into vacuum through the small holes in the battery case, at the moment, the first cylinder 23 is started, the first cylinder 23 drives the auxiliary vent plate 20 to block the small holes of the battery case, at the moment, the helium pump 11 is started to fill helium in the motor case through the third pipeline 14, the second cavity 22 and the first cavity 21, at the moment, the helium detector 6 detects whether helium exists or not, so that whether the battery case leaks air is judged, and then the helium is pumped out through the vacuum pump 10 and the first pipeline 12, and at the moment, the method avoids helium leakage, so that the detection result of the helium detector 6 is obtained and errors are made. The accuracy of detection is greatly improved. The vacuum was broken by opening the valve and the cell case was removed.
The technical scope of the present invention is not limited to the content in the above description, and those skilled in the art can make various modifications and changes to the above embodiments without departing from the technical spirit of the present invention, and these modifications and changes should fall within the protection scope of the present invention.
Claims (7)
1. A vacuum helium test equipment for detecting the air tightness of a product is characterized by comprising:
the battery case placing unit comprises a test box (1), a battery case mounting plate (9) is arranged in the test box (1), a battery case is mounted on the battery case mounting plate (9) through a mounting piece on the battery case mounting plate, and a sealing door (17) capable of opening and closing is arranged at the top of the test box (1);
the device comprises a detection air tightness unit, the detection air tightness unit comprises a first air cylinder (23) and a helium pump (11), an auxiliary vent plate (20) for blocking a small opening of a battery case is fixedly connected to the telescopic end of the first air cylinder (23), a first cavity (21) communicated with the small opening of the battery case is formed in the auxiliary vent plate (20), two second cavities (22) are formed in the outer wall of the auxiliary vent plate (20), the two second cavities (22) are communicated with the first cavity (21), one of the second cavities (22) is communicated with a vacuum pump (10) through a first pipeline (12), the other second cavity (22) is communicated with the helium pump (11) through a third pipeline (14), a second pipeline (13) is connected to the test box (1) in a penetrating manner, one end, outside the test box (1), of the second pipeline (13) is communicated with the vacuum pump (10), and a helium detector (6) is fixedly installed in the test box (1);
the vacuum breaking unit comprises a pipeline penetrating through the test box (1), and a valve is arranged on the pipeline.
2. The vacuum helium testing equipment for detecting the airtightness of a product, according to claim 1, is characterized by further comprising an automatic material receiving box closing mechanism, wherein the automatic material receiving box closing mechanism comprises an auxiliary mounting plate (8) fixed on the inner wall of the test box (1), a slide rail (7) is arranged on one side of the auxiliary mounting plate (8), and a hinge rod (5) is slidably connected in the slide rail (7);
the test box (1) is rotatably connected with a first rotating column (2), the outer wall of the first rotating column (2) is fixedly connected with a connecting rod (3), the outer wall of the connecting rod (3) is slidably connected with a sliding block (4), the sliding block (4) is hinged with the hinge rod (5), and the top of the hinge rod (5) is fixedly connected with the battery case mounting plate (9); the test box (1) is provided with an operation mechanism which enables the first rotating column (2) to rotate circumferentially;
it is connected with two second rotation post (15), two to rotate on test box (1) the second rotates the equal fixedly connected with sealing door (17) of post (15), two sealing door (17) can with test box (1) top seal, one of them the second rotate post (15) with the cover is equipped with first belt (28) between first rotation post (2), the second rotates and is provided with on post (15) and makes another second rotate post (15) and be the power unit of opposite synchronization circular motion.
3. The vacuum helium detection device for detecting the airtightness of a product according to claim 2, wherein the operation mechanism comprises a first gear (24) fixed on the first rotating column (2), a second cylinder (26) is arranged on the test box (1), a rack (25) is fixedly connected to a power end of the second cylinder (26), the rack (25) is meshed with the first gear (24), a limiting groove (27) is formed in the test box (1), and the rack (25) is connected to the limiting groove (27) in a limiting sliding manner.
4. The vacuum helium testing device for testing the airtightness of a product according to claim 3, wherein the power mechanism comprises a second gear (29) arranged on the outer wall of one of the second rotating columns (15), a rotating column is rotatably connected to the test box (1), a third gear (30) is rotatably connected to the rotating column, the second gear (29) is meshed with the third gear (30), and a second belt (31) is sleeved between the rotating column and the other second rotating column (15).
5. The vacuum helium testing device for testing the air tightness of a product according to claim 4, characterized in that the side of the two sealing doors (17) away from each other is provided with a first rubber block (16), and the bottom of the first rubber block (16) is arc-shaped.
6. The vacuum helium testing equipment for detecting the airtightness of a product according to claim 5, wherein a sliding cavity (19) is formed in one side, close to each other, of each of the two sealing doors (17), a second rubber block (18) is connected in the sliding cavity (19) in a sliding manner, and an elastic piece is arranged between the sliding cavity (19) and the second rubber block (18).
7. The vacuum helium testing apparatus for testing the airtightness of a product according to claim 1, wherein valves are provided on the first pipe (12), the second pipe (13) and the third pipe (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123358728.6U CN217738575U (en) | 2021-12-29 | 2021-12-29 | Vacuum helium detection equipment for detecting air tightness of product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123358728.6U CN217738575U (en) | 2021-12-29 | 2021-12-29 | Vacuum helium detection equipment for detecting air tightness of product |
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| Publication Number | Publication Date |
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| CN217738575U true CN217738575U (en) | 2022-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123358728.6U Active CN217738575U (en) | 2021-12-29 | 2021-12-29 | Vacuum helium detection equipment for detecting air tightness of product |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117419864A (en) * | 2023-12-19 | 2024-01-19 | 广东启新汽车零部件有限公司 | Frock clamp of gas tightness of helium detection water course with adjustable |
-
2021
- 2021-12-29 CN CN202123358728.6U patent/CN217738575U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117419864A (en) * | 2023-12-19 | 2024-01-19 | 广东启新汽车零部件有限公司 | Frock clamp of gas tightness of helium detection water course with adjustable |
| CN117419864B (en) * | 2023-12-19 | 2024-03-01 | 广东启新汽车零部件有限公司 | Frock clamp of gas tightness of helium detection water course with adjustable |
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Effective date of registration: 20230413 Address after: Factory Building No. 8, No. 98 Lushan Road, High tech Zone, Suzhou City, Jiangsu Province, 215000 Patentee after: Suzhou Zhongke Ruilong Technology Co.,Ltd. Address before: Room 502, building B, No. 8, Xintai Road, Xinwu District, Wuxi City, Jiangsu Province, 214000 Patentee before: Sailicheng (Wuxi) Automation Technology Co.,Ltd. |