CN216052090U - Lithium battery vacuum discharge test bed - Google Patents
Lithium battery vacuum discharge test bed Download PDFInfo
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- CN216052090U CN216052090U CN202121979353.2U CN202121979353U CN216052090U CN 216052090 U CN216052090 U CN 216052090U CN 202121979353 U CN202121979353 U CN 202121979353U CN 216052090 U CN216052090 U CN 216052090U
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Abstract
The utility model discloses a vacuum discharge test bed for a lithium battery, and belongs to the technical field of lithium battery performance parameter tests. The utility model provides a lithium cell vacuum discharge test bench, includes the box, fixedly connected with hinge on the box, the one end fixedly connected with side door of box is kept away from to the hinge still includes: the upper cavity and the lower cavity are distributed in the box body from top to bottom; the convex block and the sealing ring are fixedly connected to the side door, a sealing groove is formed in the convex block, and the sealing ring is tightly attached to the sealing ring; the rubber air bag is arranged in the upper cavity; when the discharge performance of the lithium battery is tested in a vacuum environment, the sealing ring is arranged to increase the sealing performance of the upper cavity, and when the vacuum is pumped out, the sealing effect of the upper cavity is further improved by arranging the rubber air bag and the sealing performance, so that the detection of the discharge performance of the lithium battery is effectively prevented from being influenced due to poor sealing performance of the upper cavity.
Description
Technical Field
The utility model relates to the technical field of lithium battery performance parameter tests, in particular to a lithium battery vacuum discharge test bed.
Background
With the rapid development of new energy technology, research and application of lithium batteries are getting more and more attention, and performance parameters of lithium batteries are also very important as main references, such as charge-discharge capacity, cycle life, charge-discharge efficiency and other parameters of lithium batteries are important performance parameters of lithium batteries.
At present, when the discharge performance of a lithium battery is tested in a vacuum environment, the existing vacuum discharge test bed for the lithium battery can cause great influence when the discharge performance of the lithium battery is detected under different vacuum states due to poor sealing performance of a box body.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that in the prior art, the discharge performance of a lithium battery is greatly influenced when the discharge performance of the lithium battery is detected in different vacuum states due to poor sealing performance of a box body, and provides a vacuum discharge test bed for the lithium battery.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a lithium cell vacuum discharge test bench, includes the box, fixedly connected with hinge on the box, the one end fixedly connected with side door of box is kept away from to the hinge still includes: the upper cavity and the lower cavity are distributed in the box body from top to bottom; the convex block and the sealing ring are fixedly connected to the side door, a sealing groove is formed in the convex block, and the sealing ring is tightly attached to the sealing ring; the rubber air bag is arranged in the upper cavity; the suction pump is fixedly connected to the box body, the input end of the suction pump is communicated with the upper cavity through a first guide pipe, and the output end of the suction pump is communicated with the rubber air bag through a second guide pipe; the testing component is used for testing the discharge performance of the lithium battery in a vacuum state.
In order to test the discharge performance of the lithium battery, preferably, the test assembly comprises a first probe, a second probe, a first plug and a second plug, a frame and a tray are arranged in the upper cavity body respectively, a pressing plate is fixedly connected to the tray, the first probe is installed on the frame, the second probe is installed at the bottom of the upper cavity body, one end of the bottom of the upper cavity body is far away from and penetrates through the lower cavity body, the first plug and the second plug are installed on the outer wall of the box body, and a driving part used for driving the frame to move up and down is arranged in the upper cavity body.
In order to drive the frame to move up and down, further, the driving part comprises an electric telescopic rod, the electric telescopic rod is fixedly connected to the inner wall of the top of the box body, and the frame is fixedly connected with the output end of the electric telescopic rod.
In order to protect the first probe, furthermore, a limit column is fixedly connected to the frame.
In order to provide spacing to the frame, further, the internal fixedly connected with guide bar of epicoele, sliding connection has the slider on the guide bar, slider and frame lateral wall fixed connection.
In order to control the opening and closing of the exhaust pipe, the exhaust pipe is preferably connected to the rubber air bag, and a valve switch is mounted on the exhaust pipe.
In order to improve the sealing performance of the upper cavity, preferably, the box body is fixedly connected with a screw rod, the screw rod is connected with a nut in a threaded manner, the nut is fixedly connected with a handle, and the nut abuts against a side door.
Compared with the prior art, the utility model provides a lithium battery vacuum discharge test bed which has the following beneficial effects:
1. this lithium cell vacuum discharge test bench, when testing the discharge performance of lithium cell, the aspirator pump can be to the internal evacuation vacuum that takes out of epicoele through pipe one, and the gas of taking out this moment passes through pipe two and carries the rubber gasbag, aerifys for the rubber gasbag, makes its rubber gasbag slowly expand and closely paste closely mutually with the seal groove that is equipped with on the lug, further improves the sealed effect of cavity, effectively avoids going up the cavity leakproofness relatively poor, the influence is to the detection of lithium cell discharge performance.
2. This lithium cell vacuum discharge test bench rotates the nut through the handle, and the nut removes to the one side that is close to the box outer wall this moment, promotes side door compression sealing washer simultaneously, and then makes sealing washer and box outer wall closely paste closely to the leakproofness of cavity improves further.
The device has the advantages that the parts which are not involved are the same as or can be realized by adopting the prior art, when the discharge performance of the lithium battery is tested in a vacuum environment, the sealing effect of the upper cavity is further improved by arranging the sealing ring for increasing the sealing performance of the upper cavity and arranging the rubber air bag and the sealing performance when the vacuum is pumped out, and the detection of the discharge performance of the lithium battery is effectively prevented from being influenced due to poor sealing performance of the upper cavity.
Drawings
FIG. 1 is a schematic structural diagram of a lithium battery vacuum discharge test bed according to the present invention;
FIG. 2 is a schematic diagram of an internal structure of a vacuum discharge test bed for a lithium battery according to the present invention;
FIG. 3 is a schematic diagram of an internal structure of a lithium battery vacuum discharge test bed according to the present invention;
FIG. 4 is an enlarged view of part A of the vacuum discharge test bed for lithium batteries in FIG. 2 according to the present invention;
fig. 5 is an enlarged view of a portion B in fig. 3 of a vacuum discharge test bed for a lithium battery according to the present invention.
In the figure: 1. a box body; 101. a hinge; 102. a side door; 103. a seal ring; 104. a bump; 105. a sealing groove; 2. a getter pump; 201. a first conduit; 202. a second conduit; 3. a rubber air bag; 301. an exhaust pipe; 302. opening and closing a valve; 4. an upper cavity; 401. a lower cavity; 5. an electric telescopic rod; 501. a frame; 502. a slider; 503. a guide bar; 504. a limiting column; 505. a first probe; 506. a tray; 507. a second probe; 508. pressing a plate; 509. a first plug; 510. a second plug; 6. a screw rod; 601. a nut; 602. a handle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example 1:
referring to fig. 1-5, a lithium battery vacuum discharge test bench, includes box 1, fixedly connected with hinge 101 on the box 1, and the one end fixedly connected with side door 102 of box 1 is kept away from to hinge 101 still includes: the upper cavity 4 and the lower cavity 401 are distributed in the box body 1 from top to bottom; the bump 104 and the sealing ring 103 are fixedly connected to the side door 102, a sealing groove 105 is formed in the bump 104, and the sealing ring 103 is tightly attached to the sealing ring 103; the rubber air bag 3 is arranged in the upper cavity 4; the suction pump 2 is fixedly connected to the box body 1, the input end of the suction pump 2 is communicated with the upper cavity 4 through a first guide pipe 201, and the output end of the suction pump 2 is communicated with the rubber airbag 3 through a second guide pipe 202; wherein, be equipped with in the box 1 and be used for carrying out experimental test subassembly to lithium cell discharge performance under vacuum state.
The test assembly comprises a first probe 505, a second probe 507, a first plug 509 and a second plug 510, wherein a frame 501 and a tray 506 are respectively arranged in the upper cavity 4, a pressing plate 508 is fixedly connected to the tray 506, the first probe 505 is arranged on the frame 501, the second probe 507 is arranged at the bottom of the upper cavity 4, one end of the bottom of the upper cavity 4 is far away from and penetrates through the lower cavity 401, the first plug 509 and the second plug 510 are both arranged on the outer wall of the box body 1, and a driving part for driving the frame 501 to move up and down is arranged in the upper cavity 4.
The driving part comprises an electric telescopic rod 5, the electric telescopic rod 5 is fixedly connected to the inner wall of the top of the box body 1, and the frame 501 is fixedly connected with the output end of the electric telescopic rod 5.
Firstly, a lithium battery to be tested is placed on the tray 506, then the side door 102 is closed, the sealing ring 103 is attached to the outer wall of the box body 1 at the moment, the upper cavity 4 is sealed, then the getter pump 2 is started, the getter pump 2 can vacuumize the upper cavity 4 through the first guide pipe 201, the gas pumped out at the moment is conveyed to the rubber airbag 3 through the second guide pipe 202 to inflate the rubber airbag 3, the first guide pipe 201 and the second guide pipe 202 are both provided with one-way valves, the rubber airbag 3 is slowly expanded to be closely attached to the sealing groove 105 arranged on the bump 104, the sealing effect of the upper cavity 4 is further improved, the problem that the discharge performance of the lithium battery is affected due to poor sealing performance of the upper cavity 4 is effectively avoided, at the moment, the electric telescopic rod 5 is started, the electric telescopic rod 5 drives the frame 501 to move downwards, and the frame 501 drives the first probe 505 to descend to further enable the first probe 505 to be in conductive contact with the corresponding electrode of the lithium battery to be tested, meanwhile, the second probe 507 is in conductive contact with the other electrode of the lithium battery to be tested through a probe hole formed in the pressing plate 508, so that a discharge test of the lithium battery is performed in a vacuum environment;
install the snuffle valve on the second 202 through the pipe, and then when making the atmospheric pressure value in the rubber gasbag 3 be greater than the numerical value that the snuffle valve set for, the snuffle valve is automatic to be opened this moment, and the gas in the rubber gasbag 3 is discharged through second 202 pipes, and when the atmospheric pressure value in the rubber gasbag 3 was less than the numerical value that the snuffle valve set up simultaneously, snuffle valve self-closing.
Example 2:
referring to fig. 1 to 5, a lithium battery vacuum discharge test bed is substantially the same as that of embodiment 1, and further, a frame 501 is fixedly connected with a limiting column 504; when the frame 501 moves downwards, the first probe 505 is protected by the limiting column 504 when the first probe 505 is attached to a lithium battery, and the first probe 505 is prevented from being damaged due to high pressure when the first probe is lowered.
Example 3:
referring to fig. 1-5, a lithium battery vacuum discharge test bed is substantially the same as that in embodiment 1, further, a guide rod 503 is fixedly connected in the upper cavity 4, a slide block 502 is slidably connected on the guide rod 503, and the slide block 502 is fixedly connected with a side wall of the frame 501; when electric telescopic handle 5 drive frame 501 moves down, frame 501 passes through slider 502 and slides on guide bar 503, and then makes guide bar 503 can play spacing, stable support to frame 501, effectively avoids frame 501 to appear rocking when reciprocating.
Example 4:
referring to fig. 1-5, a lithium battery vacuum discharge test bed is substantially the same as that of embodiment 1, further, a box body 1 is fixedly connected with a screw rod 6, the screw rod 6 is in threaded connection with a nut 601, the nut 601 is fixedly connected with a handle 602, and the nut 601 abuts against a side door 102; the nut 601 is rotated by the handle 602, at this time, the nut 601 moves to a side close to the outer wall of the box body 1, and simultaneously, the side door 102 is pushed to compress the sealing ring 103, so that the sealing ring 103 is tightly attached to the outer wall of the box body 1, and the sealing performance of the upper cavity 4 is further improved.
Example 5:
referring to fig. 1-5, a lithium battery vacuum discharge test bed is substantially the same as that of embodiment 1, and further, an exhaust pipe 301 is connected to the rubber air bag 3, and a valve switch 302 is installed on the exhaust pipe 301; after the lithium battery discharge performance test is finished, the valve switch 302 is opened, at the moment, the gas in the rubber airbag 3 is discharged through the exhaust pipe 301, then the nut 601 is taken down through the handle 602, finally, the side door 102 is opened, and the tested lithium battery is taken out.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (7)
1. The utility model provides a lithium cell vacuum discharge test bench, includes box (1), fixedly connected with hinge (101) on box (1), the one end fixedly connected with side door (102) of box (1) are kept away from in hinge (101), its characterized in that still includes:
the upper cavity (4) and the lower cavity (401) are distributed in the box body (1) up and down;
the convex block (104) and the sealing ring (103) are fixedly connected to the side door (102), a sealing groove (105) is formed in the convex block (104), and the sealing ring (103) is tightly attached to the sealing ring (103);
the rubber air bag (3) is arranged in the upper cavity (4);
the air suction pump (2) is fixedly connected to the box body (1), the input end of the air suction pump (2) is communicated with the upper cavity (4) through a first guide pipe (201), and the output end of the air suction pump (2) is communicated with the rubber air bag (3) through a second guide pipe (202);
the testing device comprises a box body (1), and is characterized in that a testing assembly used for testing the discharge performance of the lithium battery in a vacuum state is arranged in the box body (1).
2. The lithium battery vacuum discharge test bed according to claim 1, wherein the test assembly comprises a first probe (505), a second probe (507), a first plug (509) and a second plug (510), a frame (501) and a tray (506) are respectively arranged in the upper cavity (4), a pressure plate (508) is fixedly connected to the tray (506), the first probe (505) is installed on the frame (501), the second probe (507) is installed at the bottom of the upper cavity (4), one end of the upper cavity (4) far away from the bottom of the upper cavity runs through the lower cavity (401), the first plug (509) and the second plug (510) are both installed on the outer wall of the box body (1), and a driving component for driving the frame (501) to move up and down is arranged in the upper cavity (4).
3. The lithium battery vacuum discharge test bed according to claim 2, wherein the driving component comprises an electric telescopic rod (5), the electric telescopic rod (5) is fixedly connected to the inner wall of the top of the box body (1), and the frame (501) is fixedly connected with the output end of the electric telescopic rod (5).
4. The lithium battery vacuum discharge test bed according to claim 2, characterized in that a limiting column (504) is fixedly connected to the frame (501).
5. The lithium battery vacuum discharge test bed according to claim 3, characterized in that a guide rod (503) is fixedly connected in the upper cavity (4), a sliding block (502) is slidably connected on the guide rod (503), and the sliding block (502) is fixedly connected with the side wall of the frame (501).
6. The lithium battery vacuum discharge test bed according to claim 1, characterized in that an exhaust pipe (301) is connected to the rubber air bag (3), and a valve switch (302) is installed on the exhaust pipe (301).
7. The lithium battery vacuum discharge test bed according to claim 1, characterized in that a lead screw (6) is fixedly connected to the box body (1), a nut (601) is connected to the lead screw (6) in a threaded manner, a handle (602) is fixedly connected to the nut (601), and the nut (601) abuts against the side door (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121979353.2U CN216052090U (en) | 2021-08-23 | 2021-08-23 | Lithium battery vacuum discharge test bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121979353.2U CN216052090U (en) | 2021-08-23 | 2021-08-23 | Lithium battery vacuum discharge test bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216052090U true CN216052090U (en) | 2022-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121979353.2U Active CN216052090U (en) | 2021-08-23 | 2021-08-23 | Lithium battery vacuum discharge test bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216052090U (en) |
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2021
- 2021-08-23 CN CN202121979353.2U patent/CN216052090U/en active Active
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