Battery cell end cover cleaning device

Abstract

The utility model provides a battery cell end cover cleaning device, which relates to the technical field of battery cell cleaning, and comprises a spraying device and a brushing device, the brushing device comprises a support located on the periphery of the battery cell, a brush movably installed on the support, and a driving source for driving the brush to be attached to the end opening of the battery cell to shake, wherein bristles of the brush face the end opening of the battery cell. Cleaning liquid is sprayed to a battery cell port through the spraying device, the driving source drives the brush to clean the battery cell port, the cleaning liquid and electrolyte at the battery cell port are fully brushed under the shaking brush, the electrolyte at the battery cell port is fully removed, and after the cleaning liquid at the battery cell port is brushed, the conveying line drives the battery cell to move to the air shower frame. And residual cleaning liquid and dust at the port of the battery cell are cleaned, so that the welding part of the battery cell is fully cleaned, the welding defects such as welding explosion points and explosion holes in the subsequent process are avoided, and the subsequent automatic production is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of battery cell cleaning, in particular to a battery cell end cover cleaning device. Background Art

[0002] Lithium batteries are classified into different types according to their packaging methods. They are usually divided into three types: soft-pack, square and cylindrical batteries. The outer shells of square and cylindrical batteries are mostly made of aluminum shells. They generally require liquid injection and sealing welding of the liquid injection port.

[0003] At present, after the last injection of the battery cell, a small amount of electrolyte will remain on the surface of the battery cell end cap. Under certain temperature conditions, this part of the electrolyte will form crystals on the surface of the battery cell shell. The formed crystals are extremely unfavorable for the subsequent sealing nail welding process of the injection port, because when the welding position is contaminated by dirt, it is very easy to produce welding defects such as welding explosion points and explosion holes, resulting in product scrapping and waste. Therefore, it is very necessary to clean and decontaminate the battery cell, so it is urgent to design a battery cell end cap cleaning device to improve the automation level of the production line. Utility Model Content

[0004] In order to solve the above technical problems, the utility model uses a spraying device to spray cleaning liquid on the battery port, and a vibrating brush fully scrubs the electrolyte and cleaning liquid on the battery port. The specific technical solution is as follows:

[0005] A battery cell end cover cleaning device comprises a spraying device and a brushing device, wherein the spraying device is used to spray a cleaning liquid on the port of the battery cell, and the brushing device comprises a bracket located at the periphery of the battery cell, a brush movably mounted on the bracket with the bristles facing the battery cell port, and a driving source for driving the brush to vibrate against the battery cell port.

[0006] Preferably, the bracket comprises a supporting frame, and the brush is loosely fitted on the supporting frame.

[0007] Preferably, the scrubbing device further comprises guide bars arranged on both sides of the battery core, and the guide bars are connected to the supporting frame.

[0008] Preferably, the scrubbing device further comprises a blocking block mounted on one end of the guide bar, the blocking block slides relative to the guide bar, and can be moved between the two guide bars to block the battery cell.

[0009] Preferably, the guide strip located at the brush is provided with a clamping plate, and the clamping plate can press the battery cell between the two guide strips.

[0010] Preferably, it further comprises an air shower device, which comprises an air shower frame and an air outlet slot which is opened on the air shower frame and blows air toward the battery cell port passing through the air shower frame.

[0011] It can be seen from the above technical solutions that the utility model has the following beneficial effects:

[0012] The utility model sprays cleaning liquid on the battery cell port through a spraying device, and a driving source drives a brush to clean the battery cell port. The cleaning liquid and electrolyte on the battery cell port are fully brushed under the shaking brush, and the electrolyte at the battery cell port is fully removed. After the electrode liquid on the battery cell port is brushed, the conveyor line drives the battery cell to move to the air shower rack, and air is blown on the battery cell surface through the air outlet slot to clean the residual cleaning liquid and dust on the battery cell port, thereby achieving full cleaning of the welding part of the battery cell and ensuring the smooth progress of subsequent welding work. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the structure of the support frame and the protrusion of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the battery cup holder of the utility model.

[0016] In the figure:

[0017] 1. Conveyor line; 101. Spray rack; 102. Spray head; 103. Valve;

[0018] 2. guide strip; 201. air outlet slot; 202. air inlet;

[0019] 3. Fixing card; 301. Clamp; 302. First slider; 303. First cylinder; 304. First guide rail; 305. First mounting seat;

[0020] 4. Connecting member; 401. Blocking block; 402. Second sliding block; 403. Second mounting seat; 404. Second guide rail; 405. Fixing member; 406. Second cylinder;

[0021] 5. Support frame; 6. Support legs; 7. Mounting hole; 8. Protrusion; 9. Brush; 10. Motor; 11. Eccentric flywheel; 12. Battery cell; 13. Battery cell cup holder. DETAILED DESCRIPTION

[0022] The following is a detailed description of the present invention in conjunction with the accompanying drawings and specific embodiments. Before describing in detail the technical solutions of each embodiment of the present invention, the nouns and terms involved are explained. In this specification, components with the same name or the same number represent similar or identical structures and are only for illustrative purposes.

[0023] like Figure 1 and Figure 2As shown, a battery cell end cover cleaning device includes a spraying device and a brushing device, the spraying device is used to spray cleaning liquid on the port of the battery cell 12, the brushing device includes a bracket located at the periphery of the battery cell 12, a brush 9 movably installed on the bracket with bristles facing the port of the battery cell 12, and a driving source that drives the brush 9 to vibrate at the port of the battery cell 12, wherein, in order to improve the cleaning of electrolyte residue at the port of the battery cell 12, the spraying mechanism first sprays cleaning liquid on the port of the battery cell 12, and the cleaning liquid improves the cleaning effect, and then the electrolyte at the port of the battery cell 12 is brushed by the brushing device; the bracket is located on both sides of the battery cell 12, and the battery cell 12 is located directly below the middle of the bracket, the brush 9 is movably installed on the bracket, and the driving source drives the brush 9 to move relative to it, and the movement of the brush 9 can brush the cleaning liquid and electrolyte at the port of the battery cell 12, thereby improving the cleaning effect of the electrolyte at the port of the battery cell 12.

[0024] The battery cell 12 may be in different shapes, such as a soft-pack, square, or cylindrical shape.

[0025] Embodiment 1:

[0026] The bracket includes a support frame 5, and a brush 9 is loosely fitted on the support frame 5, wherein a protrusion 8 is provided on the inner wall of the support frame 5, and the support frame 5 is loosely fitted with the support frame 5 through the protrusion 8. Driven by a driving source, the brush 9 is located in the middle of the support frame 5 and vibrates, so that the brush 9 brushes the end of the battery cell 12 to provide a cleaning effect.

[0027] Embodiment 2:

[0028] The end of the brush 9 is fixed on the support frame 5, and the connection between the bristle part of the brush 9 and the support frame 5 is elastic, such as using multiple elastic sheets or rubbers to connect with each other, so that the brush 9 can be shaken relative to the support frame 5. As the driving source drives the brush 9 to shake, the brush 9 can brush the port of the battery cell 12 to improve the cleaning effect of the port of the battery cell 12.

[0029] like Figure 1 As shown, the scrubbing device also includes guide bars 2 arranged on both sides of the battery cell 12, and the guide bars 2 are connected to the support frame 5. The guide bars 2 are used to limit the battery cell 12. A conveyor line 1 can be arranged below the guide bar 2, and the conveyor line 1 has a transmission effect on the battery cell 12. The guide bar 2 limits the side of the battery cell 12 to prevent the battery cell 12 from falling out of the side of the conveyor line 1. The support frame 5 can be fixedly installed on the side wall of the conveyor line 1, and can also be installed on the side wall of the guide bar 2. Preferably, the support frame 5 is installed on the side wall of the guide bar 2. Support legs 6 are arranged around the support frame 5 and between the guide bar 2. The support legs 6 are placed vertically, and mounting holes 7 are arranged at both ends of the support legs 6. The support frame 5 is fixedly installed on the guide bar 2 through the support legs 6 and the mounting holes 7.

[0030] A fixing card 3 is fixedly installed on the side wall of the guide bar 2 , and a connecting piece 4 is fixedly installed on the side wall of the conveyor line 1 by the fixing card 3 . The connecting piece 4 and the fixing card 3 fix the guide bar 2 on the side wall of the conveyor line 1 .

[0031] like Figure 1 As shown, the brushing device also includes a blocking block 401 installed at one end of the guide bar 2, the blocking block 401 slides relative to the guide bar 2, and can move between the two guide bars 2 to block the battery cell 12, wherein a second mounting seat 403 and a second cylinder 406 are fixedly installed on the side wall of the conveyor line 1, a second guide rail 404 is fixedly installed on the second mounting seat 403, a second slider 402 is slidably connected on the second guide rail 404, the second slider 402 and the output end of the second cylinder 406 are fixedly installed with the same fixing part 405, the blocking block 401 and the second slider 402 are fixed to each other, the blocking block 401 moves with the second cylinder 406 to the forward direction of the battery cell 12, so as to stop and release the battery cell 12, the battery cell 12 is located at the brush 9 for brushing, when the blocking block 401 stops and releases the battery cell 12, interference between the blocking block 401 and the guide bar 2 is not avoided, and a groove is provided on the blocking block 401 toward one end of the guide bar 2.

[0032] like Figure 1 As shown, the guide bar 2 located at the brush 9 is provided with a clamping plate 301, and the clamping plate 301 can press the battery cell 12 between the two guide bars 2, wherein, in order to achieve the limiting effect of the battery cell 12, to ensure that after the battery cell 12 is limited, the brush 9 can, under the action of the driving source, have a better cleaning effect on the port of the battery cell 12, a first mounting seat 305 is fixedly installed on the side wall of the conveyor line 1, and a first guide rail 304 is fixedly installed on the first mounting seat 305, and the number of the first guide rails 304 is preferably set to one Yes, a pair of first guide rails 304 are slidably connected with the same first slider 302, the first slider 302 is fixed to the clamp 301, and the first slider 302 drives the clamp 301 to squeeze the side walls of the multiple battery cells 12, so that the battery cells 12 are limited, and the end of the first mounting seat 305 is also fixedly installed with a first cylinder 303, the output end of the first cylinder 303 is fixed to the clamp 301, and the first cylinder 303 drives the clamp 301 and the side walls of the multiple battery cells 12 to be pressed and limited.

[0033] like Figure 1 and Figure 3As shown, in order to improve the clamping effect of the clamping plate 301 on the battery cell 12, a battery cell cup holder 13 is arranged between the two guide bars 2. The battery cell cup holder 13 is a cylindrical container, which moves with the conveyor line 1. The maximum outer diameter of the battery cell cup holder 13 is smaller than the vertical distance between the two guide bars 2. When clamping, one side of the clamping plate 301 is pressed against the battery cell cup holder 12. After the battery cell cup holder 12 is subjected to force, the other side thereof is pressed against the guide bar 2. When loosening, it can be reset by the clamping plate 301. One side of the clamping plate 301 is pressed against the battery cell cup holder 13 to achieve clamping and loosening of the battery cell 12.

[0034] like Figure 1 As shown, the driving source includes a motor 10 fixedly mounted on an end of the brush 9 away from the bristles and an eccentric flywheel 11 fixed at the output end of the motor 10. When the motor 10 is started, the motor 10 drives the brush 9 to vibrate through the eccentric flywheel 11, so that the brush 9 cleans the port of the battery cell 12. For the above-mentioned embodiments one and two, the motor 10 is preferably installed on the back of the brush 9, that is, the motor 10 and the eccentric flywheel 11 drive the brush 9 to vibrate relative to the support frame 5, so as to clean the port of the battery cell 12; in the above-mentioned embodiment two, the elastic sheet or rubber can reduce the vibration transmission of the support frame 5, and reduce the influence of the motor 10 and the eccentric flywheel 11 on the support frame 5.

[0035] In addition to the above-mentioned methods, the driving source can also be pneumatic drive and piezoelectric drive. If pneumatic drive is adopted, for example, a pneumatic piston or a pneumatic vibrator is contacted with the brush 9, and the pneumatic piston or the pneumatic vibrator is driven by the air source to achieve a shaking effect on the brush 9, and the air pressure of the air source is adjusted to control the shaking frequency and amplitude of the brush 9; if piezoelectric drive is adopted, the piezoelectric element is fixed on the back of the brush 9, the power supply is connected to the piezoelectric element, and the output voltage of the power supply is adjusted to control the vibration frequency and amplitude of the piezoelectric device.

[0036] like Figure 1 As shown, the spraying device includes a spray rack 101 and a nozzle 102 arranged on the spray rack 101 and spraying cleaning liquid toward the port of the battery cell 12 passing through the spray rack 101, wherein the spray rack 101 is fixedly installed at one end of the guide bar 2, and the battery cell 12 passes from the bottom of the spray rack 101 through the conveyor line 1, and a valve 103 is arranged at one end of the nozzle 102, and the valve 103 is connected to the cleaning liquid storage tank through a pipeline, and the cleaning liquid is atomized and sprayed on the surface of the battery cell 12 through the nozzle 102 to improve the cleaning effect.

[0037] The battery cell end cover cleaning device further includes an air shower device. The air shower device includes an air shower frame and an air outlet groove 201 formed in the air shower frame and blowing air toward the port of the battery cell 12 passing through the air shower frame. An air inlet 202 is further provided at one end of the air outlet groove 201. The air inlet 202 can be connected to a blower through a pipeline. The air discharged from the air outlet groove 201 dries the residual cleaning liquid and dust at the port of the battery cell 12. The air shower frame and the spraying frame 101 are in a "冂" shape. The spray head 102 and the air outlet groove 201 are respectively arranged in the middle of the spraying frame 101 and the air shower frame. When the battery cell 12 passes through the air shower frame, the air outlet groove 201 blows air toward the port of the battery cell 12 to clean the residual cleaning liquid and dust at the port of the battery cell 12.

[0038] During use, the battery cell 12 flows into the spraying frame 101 through the conveyor line 1. The spray head 102 sprays cleaning liquid toward the port of the battery cell 12. Subsequently, the battery cell 12 is moved by the conveyor line 1 to directly below the brush 9. The second cylinder 406 drives the blocking block 401 to block the battery cell 12, so that the battery cell 12 is restricted at the position of the brush 9. The first cylinder 303 drives the clamping plate 301 to tightly limit the battery cell 12. Then, the motor 10 and the eccentric flywheel 11 drive the brush 9 to vibrate. The vibrating brush 9 cleans the port of the battery cell 12. After the electrolyte at the port of the battery cell 12 is cleaned, the second cylinder 406 drives the blocking block 401 to move away from the battery cell 12. The conveyor line 1 drives the battery cell 12 to move to the air shower frame again. The air outlet groove 201 blows air toward the port of the battery cell 12 to clean the residual cleaning liquid and dust at the port of the battery cell 12, completing the cleaning of the port of the battery cell 12, which is convenient for subsequent automated production.

[0039] The above-described embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A battery cell end cover cleaning device, comprising a spraying device and a brushing device, characterized in that: The spraying device is used to spray cleaning liquid on the port of the battery cell (12), and the scrubbing device comprises a bracket located outside the battery cell (12), a brush (9) movably mounted on the bracket with bristles facing the port of the battery cell (12), and a driving source for driving the brush (9) to vibrate against the port of the battery cell (12).

2. The battery cell end cover cleaning device according to claim 1, characterized in that: The support comprises a support frame (5), and the brush (9) is loosely fitted on the support frame (5).

3. The battery cell end cover cleaning device according to claim 2, characterized in that: The scrubbing device also includes guide bars (2) arranged on both sides of the battery core (12), and the guide bars (2) are connected to the support frame (5).

4. The battery cell end cover cleaning device according to claim 3, characterized in that: The scrubbing device further comprises a blocking block (401) mounted on one end of the guide bar (2); the blocking block (401) slides relative to the guide bar (2) and can move between the two guide bars (2) to block the battery cell (12).

5. The battery cell end cover cleaning device according to claim 2, characterized in that: The guide strip (2) located at the brush (9) is provided with a clamping plate (301), and the clamping plate (301) can press the battery core (12) between the two guide strips (2).

6. The battery cell end cover cleaning device according to claim 1, characterized in that: The driving source comprises a motor (10) fixedly mounted on an end of the brush (9) away from the bristles, and an eccentric flywheel (11) fixed on an output end of the motor (10).

7. The battery cell end cover cleaning device according to claim 1, characterized in that: The spraying device comprises a spray frame (101) and a spray head (102) arranged on the spray frame (101) and spraying a cleaning liquid toward a port of a battery cell (12) passing through the spray frame (101).

8. The battery cell end cover cleaning device according to claim 1, characterized in that: It also includes an air shower device, which includes an air shower frame and an air outlet slot (201) opened on the air shower frame and blowing air toward the port of the battery cell (12) passing through the air shower frame.

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