CN212779740U - Air tightness testing device of lithium ion battery pack - Google Patents
Air tightness testing device of lithium ion battery pack Download PDFInfo
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- CN212779740U CN212779740U CN202022208194.8U CN202022208194U CN212779740U CN 212779740 U CN212779740 U CN 212779740U CN 202022208194 U CN202022208194 U CN 202022208194U CN 212779740 U CN212779740 U CN 212779740U
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Abstract
A device for testing the air tightness of a lithium ion battery pack comprises a logistics line for conveying the battery pack to be tested, a rack and an air tightness tester, wherein the rack is installed on the logistics line; the air tightness testing plug mechanism comprises a plug mounting seat capable of lifting along with the testing air cylinder, a mounting hole is formed in the middle of the plug mounting seat, a testing plug is arranged at the lower end of the mounting hole, an air pipe is inserted in the upper end of the mounting hole, the other end of the air pipe is communicated with the air tightness tester, the testing plug is structurally matched with a pressure relief opening in the battery pack, and a through air passage for ventilation testing is formed in the middle of the testing plug; the test cylinder and the pressing cylinder are respectively vertically arranged on a cylinder mounting seat; the labor force is reduced, and the testing efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of lithium-ion battery test and specifically relates to an air tightness testing arrangement of lithium ion battery package is related to.
Background
With the high-speed development of new energy industry, new energy automobiles increasingly enter people's lives. However, the safety problem brought by the new energy automobile becomes a hotspot and a difficulty in the automobile industry. The battery pack is a main source of new energy automobile power, has very strict requirements on the working environment, and needs to be subjected to air tightness detection in the production process so as to prevent the battery pack from short circuit due to air leakage and water leakage.
In the prior art, the tightness of the battery pack is generally detected by manually connecting the battery pack with a tester by using a simple tool; however, the method is complex in operation, high in labor intensity, low in testing efficiency and not beneficial to automatic production.
Disclosure of Invention
An object of the utility model is to overcome above-mentioned prior art not enough, provide a lithium ion battery package's gas tightness testing arrangement, reduce the hand labor power, improve efficiency of software testing.
The utility model provides a technical scheme that its technical problem adopted is: a device for testing the air tightness of a lithium ion battery pack comprises a logistics line for conveying the battery pack to be tested, a rack and an air tightness tester, wherein the rack is installed on the logistics line; the air tightness testing plug mechanism comprises a plug mounting seat capable of lifting along with the testing air cylinder, a mounting hole is formed in the middle of the plug mounting seat, a testing plug is arranged at the lower end of the mounting hole, an air pipe is inserted in the upper end of the mounting hole, the other end of the air pipe is communicated with the air tightness tester, the testing plug is structurally matched with a pressure relief opening in the battery pack, and a through air passage for ventilation testing is formed in the middle of the testing plug; the test cylinder and the pressing cylinder are respectively vertically installed on a cylinder installation seat.
The material flow line comprises two side beams arranged along the length direction of the material flow line, one end parts of the two side beams are provided with driving rollers extending along the width direction of the material flow line, the other end parts of the two side beams are provided with driven rollers parallel to the driving rollers, the driving rollers and the driven rollers are sleeved on two conveying chains, and gears meshed with the conveying chains are arranged at the two end parts of the driving rollers and the driven rollers.
The commodity circulation line is equipped with the frock board that can follow the motion of commodity circulation line on, be equipped with the profile modeling constant head tank that is used for fixing a position the battery package on the frock board.
The cylinder mount pad includes the diaphragm, connects in the riser of diaphragm one end, and test cylinder, pressure cylinder are fixed respectively on a riser, are equipped with the waist type slot hole that extends along logistics line width direction on the diaphragm, are equipped with the installation screw on the mesa of frame, and the bolt passes waist type slot hole and the installation screw that corresponds in proper order and fixes the cylinder mount pad in the mesa below.
A triangular reinforcing plate is arranged between the transverse plate and the vertical plate.
The sealing plug is fixed at the output end of the compression cylinder through an L-shaped connecting block, a first screw hole is formed in the position, corresponding to the compression cylinder, of the upper end of the connecting block and is fixedly connected with the first screw hole through a first screw installed in the first screw hole, a second screw hole is formed in the position, corresponding to the sealing plug, of the upper end of the connecting block and is fixedly connected with the second screw hole through a second screw installed in the second screw hole.
The automatic battery pack stacking and conveying device is characterized in that a stacking mechanism is arranged on the rack and comprises a stacking pushing cylinder, the output end of the stacking pushing cylinder is connected with a stacking gun fixing block, a stacking gun is fixedly mounted at one end of the stacking gun fixing block, and when the stacking pushing cylinder is completely extended out, a scanning head of the stacking gun is over against a bar code on a battery pack; and a photoelectric switch for detecting the in-place signal of the battery pack is arranged on a side beam of the logistics line.
Still including being used for receiving photoelectric switch's detected signal to control test cylinder, compress tightly the cylinder decline, the sign indicating number is swept in control and is impeld the cylinder decline and make to sweep a yard rifle and sweep the sign indicating number, and control gas tightness tester carries out the controller of gas tightness test, and the controller setting is in the electrical control box, and touch-sensitive screen, alarm lamp on the electrical control box pass through the communication line with the controller and are connected.
Sweep a yard rifle for full-automatic sweeping a yard rifle, the model is basement shi SR 1000.
The material of sealed end cap is silica gel, and the material of test end cap is rubber.
Has the advantages that: compared with the prior art, the utility model has the advantages of reasonable and novel design, simple structure, low manufacturing cost and convenient and rapid operation, and reduces the labor intensity of workers; the utility model has high automation degree, automatically tests and records the test value of the battery pack, and greatly improves the test efficiency; simultaneously the utility model discloses have very high commonality, applicable in not unidimensional battery package.
Drawings
Fig. 1 is a front view of the present invention;
fig. 2 is a top view of the present invention;
fig. 3 is a schematic structural view of the communication plug sealing mechanism of the present invention;
fig. 4 is a front view of the plug mechanism for testing air tightness according to the present invention;
fig. 5 is a schematic structural view of the plug mechanism for testing air tightness according to the present invention;
FIG. 6 is a front view of the code scanning mechanism of the present invention;
in the figure: 1. the device comprises a rack, 2, an air tightness tester, 3, an alarm lamp, 4, an electrical control box, 5, a communication plug sealing mechanism, 5-1, a cylinder mounting seat I, 5-2, a pressing cylinder, 5-3, a connecting block, 5-4, a sealing plug, 6, an air tightness testing plug mechanism, 6-1, a cylinder mounting seat II, 6-2, a testing cylinder, 6-3, a plug mounting seat, 6-4, a testing plug, 7, a code scanning mechanism, 7-1, a code scanning pushing cylinder, 7-2, a code scanning gun fixing block, 7-3, a code scanning gun, 8, a battery pack, 9, a tooling plate, 10 and a logistics line.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention.
In fig. 1, the utility model comprises a frame 1, an air tightness tester 2, an alarm lamp 3, an electrical control box 4, a communication plug sealing mechanism 5, an air tightness testing plug mechanism 6, a code scanning mechanism 7, a logistics line 10 and a tooling plate 9, wherein a controller (model number is S7-300 PLC) of the electrical control box 4 is connected with the air tightness tester 2, the code scanning gun 7-3 and the alarm lamp 3 through signal lines; the air tightness tester 2 is a high-precision standard leak detector and is used for testing the voltage drop value of the battery; the logistics line 10 is used for conveying the battery pack 8 to be detected, the rack 1 is installed on the logistics line 10, and a photoelectric switch used for detecting the in-place signal of the battery pack 8 is installed on a side beam of the logistics line 10; the communication plug sealing mechanism 5 and the air tightness testing plug mechanism 6 are arranged below the table top of the frame 1 and used for sealing the battery pack and testing the air inflation of the battery pack; the communication plug sealing mechanism 5 comprises a sealing plug 5-4 which can lift along with the pressing cylinder 5-2, the sealing plug 5-4 is matched with the communication plug at the upper end of the battery pack 8 in structure and is used for sealing the communication plug at the upper end of the battery pack 8, and the sealing plug 5-4 is used for plugging the communication connector of the battery pack to prevent air leakage from influencing a test result and can be selectively used aiming at different battery packs; the air tightness testing plug mechanism 6 comprises a plug mounting seat 6-3 capable of lifting along with the testing cylinder 6-2, a mounting hole is formed in the middle of the plug mounting seat 6-3, a testing plug 6-4 is installed at the lower end of the mounting hole, an air pipe is inserted into the upper end of the mounting hole, the other end of the air pipe is communicated with the air tightness tester 2, the structure of the testing plug 6-4 is matched with the structure of a pressure relief opening in the battery pack 8, a through air passage for ventilation testing is formed in the middle of the testing plug 6-4, the air tightness tester 2 is communicated with the mounting hole of the plug mounting seat 6-3 through an air pipe, the testing plug 6-4 is installed at the lower end of the.
The device also comprises a controller used for receiving detection signals of the photoelectric switch so as to control the test cylinder 6-2 and the pressing cylinder 5-2 to descend, controlling the code scanning propulsion cylinder 7-1 to descend to enable the code scanning gun 7-3 to scan codes and controlling the air tightness tester 2 to perform air tightness test, wherein the controller is arranged in the electric control box 4, and a touch screen on the electric control box 4 is connected with the controller through a communication line.
The sealing plug 5-4 is made of silica gel, and the testing plug 6-4 is made of rubber.
In fig. 2, the material flow line 10 includes two side beams disposed along the length direction of the material flow line 10, one end of each side beam is provided with a driving roller extending along the width direction of the material flow line 10, the other end is provided with a driven roller parallel to the driving roller, the driving roller and the driven roller are sleeved on two transmission chains, and two ends of the driving roller and the driven roller are provided with gears engaged with the transmission chains. The logistics line 10 is provided with a tooling plate 9 which can move along with the logistics line 10, and the tooling plate 9 is provided with a profiling positioning groove for positioning the battery pack 8.
In fig. 3, 4 and 5, the cylinder mounting seats (the first cylinder mounting seat 5-1 and the second cylinder mounting seat 6-1) comprise transverse plates and vertical plates connected to one ends of the transverse plates, the test cylinder 6-2 and the pressing cylinder 5-2 are respectively fixed on one vertical plate, waist-shaped long holes extending along the width direction of the material flow line 10 are formed in the transverse plates, mounting screw holes are formed in the table top of the frame 1, and bolts sequentially penetrate through the waist-shaped long holes and the corresponding mounting screw holes to fix the cylinder mounting seats below the table top; the communication plug sealing mechanism 5 and the air tightness testing plug mechanism 6 are fixed below the rack 1 through bolts and can move in the horizontal direction to adapt to testing of battery packs with different sizes; a triangular reinforcing plate is arranged between the transverse plate and the vertical plate. The sealing plug 5-4 is fixed at the output end of the pressing cylinder 5-2 through an L-shaped connecting block 5-3, a first screw hole is formed in the upper end of the connecting block 5-3, corresponding to the pressing cylinder 5-2, and is fixedly connected through a first screw installed in the first screw hole, and a second screw hole is formed in the upper end of the connecting block 5-3, corresponding to the sealing plug 5-4, and is fixedly connected through a second screw installed in the second screw hole.
In fig. 6, the code scanning mechanism 7 comprises a code scanning propulsion cylinder 7-1, the output end of the code scanning propulsion cylinder 7-1 is connected with a code scanning gun fixing block 7-2, one end of the code scanning gun fixing block 7-2 is fixedly provided with a code scanning gun 7-3, and when the code scanning propulsion cylinder 7-1 is completely extended, the scanning head of the code scanning gun 7-3 is over against the bar code on the battery pack 8; the code scanning gun 7-3 is a full-automatic code scanning gun with the model of Keynes SR 1000.
During specific testing, the assembled battery pack 8 is placed on the tooling plate 9 and flows to the lower part of the rack 1 through the logistics line 10. Firstly, a controller in an electrical control box 4 detects a material signal through a photoelectric switch, controls a code scanning mechanism 7, scans codes to propel a cylinder 7-1 to descend, automatically scans the codes by a code scanning gun 7-3, and transmits a battery pack bar code to the controller and displays the battery pack bar code on a touch screen; then controlling the communication plug sealing mechanism 5 and the air tightness testing plug mechanism 6, driving the pressing cylinder 5-2 and the testing cylinder 6-2 to descend, so that the sealing plug 5-4 and the testing plug 6-4 plug the battery pack 8, and starting an air tightness test by the air tightness tester 2 after sealing is finished; after the test is finished, all mechanisms return to the original positions, the air tightness tester 2 sends the test pressure drop value to the controller, and the controller controls the alarm lamp 3 to give out an acousto-optic prompt to prompt the completion of the detection.
The above-described embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the spirit of the present invention, and these changes and modifications are all within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides an air tightness testing arrangement of lithium ion battery package which characterized in that: the device comprises a logistics line (10) for conveying a battery pack (8) to be detected, a rack (1) installed on the logistics line (10) and an air tightness tester (2), wherein a communication plug sealing mechanism (5) and an air tightness testing plug mechanism (6) are arranged below a table top of the rack (1), the communication plug sealing mechanism (5) comprises a sealing plug (5-4) capable of lifting along with a pressing cylinder (5-2), and the sealing plug (5-4) is structurally matched with a communication plug at the upper end of the battery pack (8) and used for sealing the communication plug at the upper end of the battery pack (8); the air tightness testing plug mechanism (6) comprises a plug mounting seat (6-3) capable of lifting along with the testing cylinder (6-2), a mounting hole is formed in the middle of the plug mounting seat (6-3), a testing plug (6-4) is mounted at the lower end of the mounting hole, an air pipe is inserted into the upper end of the mounting hole, the other end of the air pipe is communicated with the air tightness tester (2), the structure of the testing plug (6-4) is matched with that of a pressure relief opening in the battery pack (8), and a through air passage for ventilation testing is formed in the middle of the testing plug mechanism; the test cylinder (6-2) and the pressing cylinder (5-2) are respectively vertically arranged on a cylinder mounting seat.
2. The device for testing the air tightness of the lithium ion battery pack according to claim 1, wherein: the logistics line (10) comprises two side beams arranged along the length direction of the logistics line (10), one end parts of the two side beams are provided with a driving roller extending along the width direction of the logistics line (10), the other end parts of the two side beams are provided with driven rollers parallel to the driving roller, the driving roller and the driven rollers are sleeved on two transmission chains, and gears meshed with the transmission chains are arranged at the two end parts of the driving roller and the driven rollers.
3. The device for testing the air tightness of the lithium ion battery pack according to claim 2, wherein: the logistics line (10) is provided with a tooling plate (9) which can move along with the logistics line (10), and the tooling plate (9) is provided with a positioning groove for positioning the battery pack (8).
4. The device for testing the air tightness of the lithium ion battery pack according to claim 1, wherein: the air cylinder mounting seat comprises a transverse plate and a vertical plate connected to one end of the transverse plate, the testing air cylinder (6-2) and the pressing air cylinder (5-2) are respectively fixed on one vertical plate, waist-shaped long holes extending along the width direction of the logistics line (10) are formed in the transverse plate, mounting screw holes are formed in the table top of the rack (1), and bolts sequentially penetrate through the waist-shaped long holes and the corresponding mounting screw holes to fix the air cylinder mounting seat below the table top.
5. The device for testing the air tightness of the lithium ion battery pack according to claim 4, wherein: a triangular reinforcing plate is arranged between the transverse plate and the vertical plate.
6. The device for testing the air tightness of the lithium ion battery pack according to claim 1, wherein: the sealing plug (5-4) is fixed at the output end of the pressing cylinder (5-2) through an L-shaped connecting block (5-3), a first screw hole is formed in the position, corresponding to the pressing cylinder (5-2), of the upper end of the connecting block (5-3) and fixedly connected with the first screw hole through a first screw installed in the first screw hole, and a second screw hole is formed in the position, corresponding to the sealing plug (5-4), of the upper end of the connecting block (5-3) and fixedly connected with the second screw hole through a second screw installed in the second screw hole.
7. The device for testing the air tightness of the lithium ion battery pack according to claim 1, wherein: the automatic code scanning device is characterized in that a code scanning mechanism (7) is arranged on the rack (1), the code scanning mechanism (7) comprises a code scanning pushing cylinder (7-1), the output end of the code scanning pushing cylinder (7-1) is connected with a code scanning gun fixing block (7-2), one end of the code scanning gun fixing block (7-2) is fixedly provided with a code scanning gun (7-3), and when the code scanning pushing cylinder (7-1) is completely extended out, the scanning head of the code scanning gun (7-3) is over against a bar code on the battery pack (8); a photoelectric switch for detecting the in-place signal of the battery pack (8) is arranged on a side beam of the logistics line (10).
8. The device for testing the air tightness of the lithium ion battery pack according to claim 7, wherein: the device is characterized by further comprising a detection signal used for receiving a photoelectric switch, so that a testing cylinder (6-2) is controlled, a pressing cylinder (5-2) descends, a code scanning pushing cylinder (7-1) is controlled to descend, a code scanning gun (7-3) is driven to scan codes, and a controller used for controlling an air tightness tester (2) to perform air tightness testing is controlled, the controller is arranged in an electric control box (4), and a touch screen and an alarm lamp (3) on the electric control box (4) are connected with the controller through communication lines.
9. The device for testing the air tightness of the lithium ion battery pack according to claim 8, wherein: the code scanning gun (7-3) is a full-automatic code scanning gun with the model of Keynes SR 1000.
10. The device for testing the air tightness of the lithium ion battery pack according to claim 1, wherein: the sealing plugs (5-4) are made of silica gel, and the testing plugs (6-4) are made of rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022208194.8U CN212779740U (en) | 2020-09-30 | 2020-09-30 | Air tightness testing device of lithium ion battery pack |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022208194.8U CN212779740U (en) | 2020-09-30 | 2020-09-30 | Air tightness testing device of lithium ion battery pack |
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| CN212779740U true CN212779740U (en) | 2021-03-23 |
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| CN202022208194.8U Active CN212779740U (en) | 2020-09-30 | 2020-09-30 | Air tightness testing device of lithium ion battery pack |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114878078A (en) * | 2022-04-28 | 2022-08-09 | 浙江零跑科技股份有限公司 | Compaction method for tightness test of battery pack |
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- 2020-09-30 CN CN202022208194.8U patent/CN212779740U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114878078A (en) * | 2022-04-28 | 2022-08-09 | 浙江零跑科技股份有限公司 | Compaction method for tightness test of battery pack |
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