Battery liquid injection port cleaning device

Abstract

The utility model provides a battery liquid injection port cleaning device which comprises a wiping belt providing mechanism, a wiping assembly and a first driving piece, and the wiping assembly is provided with a first wiping part used for stretching into a liquid injection port and a second wiping part located on the periphery of the outer side of the liquid injection port. The first wiping part of the wiping assembly drives the wiping belt to extend into the liquid injection opening to wipe the inner wall area of the battery cell liquid injection opening, and the second wiping part of the wiping assembly drives the wiping belt to press down to the part, polluted by electrolyte, around the liquid injection opening in the top cover to wipe and clean; and the wiping assembly can be driven to reciprocate in the first direction and the second direction, so that cleaning can be carried out in all directions. The problems that in the prior art, a wiping probe stretches into a liquid injection opening to drive a wiping belt to rotate, so that the wiping belt is broken, and the wiping head on the wiping belt cannot rotate due to too large pressure are solved, and the problem that in the prior art, manual wiping efficiency is low is also solved.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery filling port cleaning device. Background Art

[0002] During the production of batteries, the gas generated inside the battery during formation needs to be completely removed, otherwise some of the gas will remain in the battery, hindering the migration of lithium ions during the charge and discharge process, increasing the internal resistance of the battery, and reducing the battery life and performance. Under current technical conditions, the measure to remove battery gas is generally to remove it by vacuuming, but the current vacuuming device will also extract the electrolyte while extracting the formation gas, which will pollute the injection port and cause poor welding of the sealing pins.

[0003] At present, the following methods are usually adopted when the injection port is polluted: 1. Manually wipe it with dust-free paper dipped in DMC. This method is inefficient, has high labor costs, and affects health; 2. Use a rotating probe to press the paper tape to wipe it. During operation, the rotating probe is inserted into the step hole of the injection port. On the one hand, this method can only rotate and clean the electrolyte inside the step hole of the injection port. The electrolyte around the outside of the injection port on the top cover cannot be cleaned, and it cannot deal with the problem of large-area electrolyte contamination; on the other hand, this method has the problem that the paper tape is difficult to move after being pressed on the battery cell injection port. If the pressure during the rotation of the rotating probe is too high, the paper tape will be pulled apart, and if the pressure is too low, it will not be able to be wiped clean. Therefore, a battery injection port cleaning device is urgently needed to solve the above problems. Summary of the invention

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the problems in the prior art when cleaning the battery liquid filling port, and to provide a battery liquid filling port cleaning device.

[0005] To solve the above technical problems, the utility model provides a battery filling port cleaning device, comprising: a wiping unit, the wiping unit comprising a wiping tape providing mechanism, a wiping assembly and a first driving member, the wiping tape providing mechanism and the wiping assembly are respectively connected to the first driving member, the first driving member drives the wiping assembly to drive the wiping tape to move toward or away from the battery filling port; the wiping assembly comprises a first wiping part and a second wiping part, when wiping, the first wiping part is configured to extend into the filling port, and the second wiping part is configured to be located outside the filling port; the wiping assembly is configured to be able to move back and forth along a first direction and a second direction, and the first direction and the second direction are set at an angle.

[0006] Optionally, an air suction unit includes a negative pressure generator, a suction nozzle and a waste liquid storage bin, one end of the suction nozzle is connected to the negative pressure generator, and the other end of the suction nozzle is arranged toward the battery filling port, and a first pipe connected to the liquid inlet of the waste liquid storage bin and the suction nozzle is provided.

[0007] Optionally, a detergent supply unit, the detergent supply unit comprising a detergent storage bin and a detergent delivery component, the detergent delivery component is connected to the detergent storage bin, and the detergent delivery component is used to deliver detergent to the battery filling port;

[0008] Optionally, the suction unit also includes a waste liquid buffer chamber and a first control valve, the waste liquid buffer chamber is located above the waste liquid storage bin, the inlet of the waste liquid buffer chamber is connected to the first pipeline, and the outlet of the waste liquid buffer chamber is connected to the inlet of the waste liquid storage bin through the first control valve.

[0009] Optionally, the cleaning agent delivery assembly includes an air pump, a second pipeline and a spray head, two ends of the second pipeline are respectively connected to the cleaning agent storage bin and the spray head, and the air pump is arranged in the second pipeline.

[0010] Optionally, the wiping tape providing mechanism includes a unwinding mechanism, a rewinding mechanism and a second truss, the unwinding mechanism is used to release the wiping tape, the rewinding mechanism is used to recover the wiping tape, the unwinding mechanism and the rewinding mechanism are arranged on the second truss at intervals along the first direction, at least one of the wiping components is located between the unwinding mechanism and the rewinding mechanism, the wiping component is slidably connected to the second truss, and the wiping component is configured to be able to move back and forth on the second truss along the first direction.

[0011] Optionally, at least one auxiliary roller is provided between the unwinding mechanism and the rewinding mechanism, the auxiliary roller is mounted on the second truss, and the auxiliary roller is used to control the tension of the wiping belt.

[0012] Optionally, the wiping assembly includes a first guide rod and a wiping head assembly, one end of the first guide rod is slidably connected to the second truss, and the other end of the first guide rod is connected to the wiping head assembly; the wiping head assembly includes a mounting block and a brush, and the brush is fixedly mounted on the first guide rod through the mounting block; along the height direction, the brush is arranged above the wiping belt, and the brush is configured to drive the wiping belt close to or away from the battery filling port along the height direction, and the brush includes a first wiping part and a second wiping part.

[0013] Optionally, a silicone sheet is further provided between the mounting block and the brush along the height direction, and the brush and the silicone sheet are detachably connected.

[0014] Optionally, a first truss is further included, wherein the air suction unit and the detergent supply unit are spaced apart on the first truss along a first direction, and the air suction unit and the detergent supply unit are both slidably connected to the first truss, and the air suction unit and the detergent supply unit are configured to be able to reciprocate along the first direction on the first truss.

[0015] Optionally, it also includes a mounting frame, which is connected to the first driving member, and the first driving member drives the mounting frame to move in a direction closer to or away from the battery filling port; the first truss and the second truss are installed on the mounting frame at intervals along a second direction, the second truss is slidably connected to the mounting frame, and the second truss is configured to be able to reciprocate along the first direction on the mounting frame, and the first direction and the second direction are set at an angle.

[0016] Optionally, along the height direction, a conveying mechanism for conveying batteries is provided below the mounting frame, the suction unit, the cleaning agent supply unit and the wiping unit are located above the conveying mechanism, and the conveying direction of the conveying mechanism is the second direction.

[0017] The above technical solution of the utility model has the following advantages compared with the prior art:

[0018] The utility model adopts a combination of an air suction unit, a detergent supply unit and a wiping unit to clean the electrolyte contamination in the battery filling port and the surrounding area. The battery is moved to the bottom of the battery filling port cleaning device by conveying the battery, and the cleaning device is pressed down to a preset height. The air suction unit moves along a first direction to first sweep over the first row of batteries, and the electrolyte around the filling port is sucked into the waste liquid storage bin through the cooperation of a negative pressure generator and a suction nozzle to avoid the contamination and spread of the electrolyte during the wiping process; the detergent supply unit located on one side of the air suction unit is opened synchronously, and the detergent storage bin conveys detergent to the battery filling port through a cleaning agent delivery assembly to dissolve the crystallization of the electrolyte caused by the long standing time of the battery after formation, and the amount of detergent sprayed can be adjusted according to the degree of crystal contamination; then the first row of batteries is moved along the conveying direction to the bottom of the wiping unit to wipe the filling port. The wiping unit includes a wiping belt providing mechanism, a wiping assembly and a first driving member. By setting the wiping assembly to be used to extend into the filling port, the wiping unit can be wiped. The first wiping part in the liquid port and the second wiping part located around the outside of the liquid filling port, when performing the wiping and cleaning operation, the first driving member drives the wiping assembly to drive the wiping belt to move in the direction close to the battery filling port, the first wiping part of the wiping assembly drives the wiping belt to extend into the filling port to wipe the inner wall area of ​​the battery filling port, the second wiping part of the wiping assembly drives the wiping belt to press down to the area contaminated by electrolyte around the filling port on the top cover to wipe and clean, and the wiping assembly can be driven to reciprocate along the first direction and the second direction to clean the inner wall area of ​​the filling port and the area around the filling port on the top cover in a more comprehensive manner, to prevent the problem of inadequate cleaning caused by the shape and size of the wiping assembly in the case of large-area pollution or dead corners on the inner wall of the filling port, which affects the subsequent sealing pin welding. This solution replaces the solution in the prior art that the wiping probe is inserted into the liquid injection port to drive the wiping belt to rotate by moving the wiping component itself, thereby avoiding the problem of the wiping belt breaking during the rotation process and the problem of the wiping head on the wiping belt being unable to rotate due to excessive pressure, and also avoiding the problem of low manual wiping efficiency in the prior art. At the same time, the use of the suction unit, the detergent supply unit and the wiping unit to cooperate with each other solves the problems in the prior art of low manual wiping efficiency, difficulty in cleaning electrolyte crystals, and the problem of vacuuming to remove the electrolyte during the battery gas production process, which will also be extracted and pollute the liquid injection port. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments of the utility model in combination with the accompanying drawings.

[0020] Figure 1 It is a three-dimensional schematic diagram of a battery filling port cleaning device in a preferred embodiment of the utility model;

[0021] Figure 2 is a schematic diagram of the wiping unit structure;

[0022] Figure 3 is a schematic diagram of the internal structure of the air suction unit;

[0023] Figure 4 is a schematic diagram of the internal structure of the detergent supply unit;

[0024] Figure 5 is a schematic diagram of the structure after the detergent supply unit and the air suction unit are assembled;

[0025] Figure 6 yes Figure 2 A schematic diagram of the structure of the middle wiping head wiping the battery filling port;

[0026] Figure 7 It is a schematic diagram of the structure of the wiping head assembly.

[0027] Explanation of the reference numerals in the specification: battery filling port cleaning device 100; suction unit 1; first pipeline 10; negative pressure generator 11; suction nozzle 12; waste liquid storage bin 13; waste liquid buffer chamber 14; first control valve 15; detergent supply unit 2; detergent storage bin 21; air pump 22; second pipeline 23; spray head 24; wiping unit 3; wiping tape supply mechanism 31; unwinding mechanism 311; winder 312; auxiliary roller 313; wiping assembly 32; first guide rod 321; wiping head assembly 322; mounting block 3221; brush 3222; silicone sheet 3223; first wiping part 3224; second wiping part 3225; wiping tape 33; mounting frame 4; first truss 41; second truss 42; conveying mechanism 5; battery 6; filling port 61; first direction X; second direction Y; height direction Z DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0029] See also Figure 1-Figure 7As shown, the utility model provides a battery filling port cleaning device 100 including a wiping unit 3, the wiping unit 3 including a wiping tape providing mechanism 31, a wiping assembly 32 and a first driving member, by setting the wiping assembly 32 to include a first wiping portion 3224 for extending into the filling port 61 and a second wiping portion 3225 located around the outer side of the filling port 61, when performing a wiping cleaning operation, the first driving member drives the wiping assembly 32 to drive the wiping tape 33 to move toward the direction close to the battery filling port 61, and the first wiping portion 3224 of the wiping assembly 32 drives the wiping tape 33 to extend into the filling port 61. The inner wall area of ​​the battery filling port 61 is wiped in the opening 61, and the second wiping part 3225 of the wiping assembly 32 drives the wiping belt 33 to press down to the area around the filling port 61 on the top cover that is contaminated by the electrolyte to wipe and clean it, and the wiping assembly can be driven to move back and forth along the first direction and the second direction to clean the inner wall area of ​​the filling port 61 and the area around the filling port 61 on the top cover in a more comprehensive manner, so as to prevent the wiping assembly 32 from being limited by shape and size and causing inadequate cleaning to affect the subsequent sealing pin welding when there is large-scale pollution or dead corners on the inner wall of the filling port 61. This solution replaces the solution in the prior art that the wiping probe is inserted into the filling port to drive the wiping belt to rotate by the movement of the wiping assembly itself, thereby avoiding the problem of the wiping belt breaking during the rotation process and the problem of the wiping head on the wiping belt being unable to rotate due to excessive pressure, and also avoiding the problem of low efficiency of manual wiping in the prior art.

[0030] Preferably, it also includes an air suction unit 1 and a detergent supply unit 2, the air suction unit 1 includes a negative pressure generator 11, a suction nozzle 12 and a waste liquid storage bin 13, one end of the suction nozzle 12 is connected to the negative pressure generator 11, and the other end of the suction nozzle 12 is arranged toward the liquid filling port 61 of the battery 6, and a first pipe 10 is provided between the liquid inlet of the waste liquid storage bin 13 and the suction nozzle 12; the detergent supply unit 2 includes a detergent storage bin 21 and a cleaning agent delivery assembly, the cleaning agent delivery assembly is connected to the detergent storage bin 21, and the cleaning agent delivery assembly is used to deliver cleaning agent to the liquid filling port of the battery 6.

[0031] The above-mentioned suction unit 1, the cleaning agent supply unit 2 and the wiping unit 3 are combined to clean the electrolyte contamination in the filling port 61 and the surrounding area of ​​the battery 6. The battery 6 is moved to the bottom of the battery filling port cleaning device 100 through the conveying device, and the battery filling port cleaning device is pressed down to a preset height. The suction unit 1 moves along the first direction X to first sweep the first row of batteries 6, and the electrolyte around the filling port is sucked into the waste liquid storage bin 13 through the cooperation of the negative pressure generator 11 and the suction nozzle 12 to prevent the electrolyte from being contaminated and spread during the wiping process. Next, the cleaning agent supply unit 2 located on one side of the air suction unit 1 is opened synchronously, and the cleaning agent storage bin 21 delivers the cleaning agent to the battery 6 filling port 61 machine through the cleaning agent delivery assembly to dissolve the crystallization of the electrolyte caused by the long standing time of the battery 6 after formation, and the amount of cleaning agent sprayed can be adjusted according to the degree of crystal contamination; then the first row of batteries 6 are moved along the delivery direction to the bottom of the wiping unit 3 to wipe the filling port, and the first wiping part 3224 of the wiping assembly 32 drives the wiping belt 33 to extend into the filling port 61 to wipe the inner wall of the battery filling port 61 The second wiping part 3225 of the wiping assembly 32 drives the wiping belt 33 to press down to the area contaminated by the electrolyte around the injection port 61 on the top cover to wipe and clean it, and the wiping assembly can be driven to move back and forth along the first direction and the second direction to clean the inner wall area of ​​the injection port 61 and the area around the injection port 61 on the top cover in a more comprehensive manner, so as to prevent the wiping assembly 32 from being insufficiently cleaned due to the shape and size when there is large-area pollution or dead corners on the inner wall of the injection port 61, which affects the subsequent sealing pin welding. The way in which the air suction unit 1, the detergent supply unit 2 and the wiping unit 3 cooperate with each other solves the problems of low efficiency of manual wiping, difficulty in cleaning electrolyte crystals, and the use of vacuuming to remove electrolyte during battery gas production, which will also extract electrolyte and pollute the injection port.

[0032] Specifically, the air suction unit 1 further includes a waste liquid buffer chamber 14 and a first control valve 15. The waste liquid buffer chamber 14 is located above the waste liquid storage bin 13. The inlet of the waste liquid buffer chamber 14 is connected to the first pipeline 10, and the outlet of the waste liquid buffer chamber 14 is connected to the inlet of the waste liquid storage bin 13 through the first control valve 15. The first control valve 15 is located between the outlet of the waste liquid buffer chamber 14 and the inlet of the waste liquid storage bin 13 to control the connection between the two, wherein the waste liquid buffer chamber 14 is located above the waste liquid storage bin 13. When the negative pressure generator 11 is turned on, the first control valve 15 is in a closed state, and the electrolyte enters the waste liquid buffer chamber 14 through the suction nozzle 12 under the suction force of the negative pressure; when the negative pressure liquid suction process is completed, the negative pressure generator 11 is turned off, and the first control valve 15 is in an open state, and the electrolyte temporarily buffered in the waste liquid buffer chamber 14 flows into the waste liquid storage bin 13. The waste liquid buffer chamber 14 is arranged above the waste liquid storage bin 13. On the one hand, it can be used to buffer waste electrolyte. On the other hand, in other preferred embodiments, the inner wall of the cavity at the connection between the waste liquid buffer chamber 14, the waste liquid storage bin 13 and the first pipeline 10 can also be designed as an inclined structure. The upper end of the inclined structure is connected to the first pipeline 10, and the lower end of the inclined structure is connected to the waste liquid storage bin 13. Such a design can prevent the waste liquid from flowing back.

[0033] Specifically, the cleaning agent delivery assembly includes an air pump 22, a second pipe 23 and a spray head 24. The two ends of the second pipe 23 are respectively connected to the cleaning agent storage bin 21 and the spray head 24. The air pump 22 is arranged in the second pipe 23. The cleaning agent storage bin 21 is used to store cleaning agents for dissolving electrolyte crystals. In the actual cleaning process, the spray head 24 is aligned with the position around the battery cell injection port, and the cleaning agent is sprayed uniformly around the battery cell injection port 61 by controlling the air pump 22. The speed and flow rate of the cleaning agent spraying can also be controlled by adjusting the air pump 22 to prevent excessive spraying from wasting resources and saving costs.

[0034] Among them, the cleaning agent is preferably DMC solvent. Spraying the DMC solvent at the injection port 61 of the battery 6 can effectively dissolve the electrolyte crystals at the injection port 61 caused by the battery 6 being left standing. After the crystals are dissolved, it is more conducive to the wiping and cleaning of the injection port 61 by the wiping component 32.

[0035] Specifically, the wiping tape providing mechanism 31 includes a reeling mechanism 311, a reeling mechanism 312 and a second truss 42, the reeling mechanism 311 is used to release the wiping tape 33, the reeling mechanism 312 is used to recycle the wiping tape 33, the reeling mechanism 311 and the reeling mechanism 312 are arranged at intervals on the second truss 42 along the first direction X, at least one wiping component 32 is located between the reeling mechanism 311 and the reeling mechanism 312, the wiping component 32 is slidably connected to the second truss 42, one of the wiping component 32 and the second truss 42 is provided with a slider, and the other is provided with a slide groove, and the wiping is achieved by the cooperation of the slider and the slide groove. The component 32 is slidably connected to the second truss 42, and the wiping component 32 is configured to reciprocate along the first direction X on the second truss 42 under the action of the second driving member; the second truss 42 is arranged on the mounting frame 4 mentioned below, and the second truss 42 is configured to reciprocate along the second direction Y on the mounting frame 4 under the action of the second driving member, thereby driving the wiping component 32 to reciprocate in the second direction Y, one of the second truss 42 and the mounting frame 4 is provided with a slider, and the other is provided with a slide groove, and the second truss 42 is reciprocated along the second direction Y on the mounting frame 4 through the cooperation of the slider and the slide groove.

[0036] The two ends of the wiping tape 33 are respectively connected to the unwinding mechanism 311 and the rewinding mechanism 312, and the unwinding mechanism 311 and the rewinding mechanism 312 operate synchronously. After the electrolyte stains near the injection port 61 of each battery cell are cleaned, the unwinding mechanism 311 unwinds the wiping tape 33 of a threshold length, and the rewinding mechanism 312 rewinds the wiping tape 33 of the same threshold length. Then the first driving member controls the wiping assembly 32 to move to a position above the liquid injection port 61 of the battery 6, and then after descending to a certain height, the wiping assembly 32 extends into the liquid injection port away from the end of the second truss 42. At this time, the first wiping portion 3224 is located in the liquid injection port 61 and contacts the inner wall of the liquid injection port 61, and the second wiping portion 3225 is located around the outer side of the liquid injection port 61 on the top cover. The wiping assembly 32 is pressed down to drive the belt 33 to reciprocate in the first direction X and the second direction Y, so as to clean the electrolyte in the dead corner on the inner wall of the liquid injection port 61 and the area contaminated by the electrolyte around the liquid injection port 61 on the top cover.

[0037] In other embodiments, at least one auxiliary roller 313 may be provided between the unwinding mechanism 311 and the rewinding mechanism 312. The auxiliary roller 313 is mounted on the second truss 42. The auxiliary roller 313 is used to control the tension of the wiping belt 33 to prevent the wiping belt 33 from loosening. Preferably, the wiping belt 33 may be made of non-woven fabric.

[0038] Specifically, the wiping assembly 32 includes a first guide rod 321 and a wiping head assembly 322. One end of the first guide rod 321 is slidably connected to the second truss 42, and the other end of the first guide rod 321 is connected to the wiping head assembly 322; the wiping head assembly 322 includes a mounting block 3221 and a brush 3222, and the brush 3222 is fixedly mounted on the first guide rod 321 through the mounting block 3221; along the height direction Z, the brush 3222 is arranged above the wiping belt, and the brush 3222 is configured to drive the wiping belt along the height direction Z to approach 33 or away from the liquid filling port of the battery 6. Among them, the first guide rod 321 can be selected as a retractable electric retractable rod, and the brush 3222 is fixedly installed on the end of the first guide rod 321 away from the second truss 42 through the mounting block 3221. The brush 3222 includes a first wiping part 3224 and a second wiping part 3225. The first wiping part 3224 can be extended into the liquid filling port 61 together with the first guide rod 321 under the driving force of the first driving member. At this time, the wiping belt 33 is also extended into the liquid filling port 61 along with the first wiping part 3224 for wiping and cleaning; the second wiping part 3225 drives the wiping belt 33 to descend to part of the battery top cover to wipe and clean the area around the liquid filling port 61 on the top cover that is contaminated by the electrolyte.

[0039] In other preferred embodiments, along the height direction Z, the first wiping portion 3224 of the brush 3222 can be set to be longer than the second wiping portion 3225 to better cooperate with the cleaning of the larger depth of the injection port 61 in different types of batteries.

[0040] Preferably, along the height direction Z, a silicone sheet 3223 is further provided between the mounting block 3221 and the brush 3222, and the brush 3222 and the silicone sheet 3223 are detachably connected. The silicone sheet 3223 provided between the mounting block 3221 and the brush 3222 can effectively reduce the buffering force between the brush 3222 and the first guide rod 321. In the actual cleaning process, if the brush 3222 is driven to descend and collide with the top cover of the battery 6 without aligning with the liquid injection port of the battery 6, the presence of the silicone sheet 3223 can effectively reduce the buffering force between the brush 3222 and the first guide rod 321, prevent the first guide rod 321 from being damaged by external impact, and increase the service life of the equipment.

[0041] Specifically, it also includes a first truss 41, and the air suction unit 1 and the detergent supply unit 2 are arranged on the first truss 41 at intervals along the first direction X, and the air suction unit 1 and the detergent supply unit 2 are both slidably connected to the first truss 41, and the air suction unit 1 and the detergent supply unit 2 are configured to be able to reciprocate on the first truss 41 along the first direction X. When two or more rows of batteries 6 are arranged on the conveyor belt along the first direction X, after the air suction unit 1 and the detergent supply unit 2 clean the first row of batteries 6, they can slide on the first truss 41 along the first direction X to the top of the injection port of the second row of batteries 6, and repeat the above process to clean the injection port of the second row of batteries 6.

[0042] Specifically, it also includes a mounting frame 4, a connection between the mounting frame 4 and a first driving member, the first driving member drives the mounting frame 4 to move toward or away from the battery 6 injection port 61, thereby driving the wiping assembly 32 to move toward or away from the battery 6 injection port 61; the first truss 41 and the second truss 42 are installed on the mounting frame 4 at intervals along the second direction Y, the second truss 42 is slidably connected to the mounting frame 4, and the second truss 42 is configured to be able to reciprocate along the first direction X on the mounting frame 4, the first direction X and the second direction Y are set at an angle, one of the first truss 41 and the mounting frame 4 is provided with a slider, and the other is provided with a slide groove, and the first truss 41 is reciprocated on the mounting frame 4 along the first direction X through the cooperation of the slider and the slide groove. Optionally, along the height direction Z, a conveying mechanism 5 for conveying the battery 6 is provided below the mounting frame 4, the air suction unit 1, the detergent supply unit 2 and the wiping unit 3 are located above the conveying mechanism, and the conveying direction of the conveying mechanism is the second direction Y.

[0043] The above technical solution of the utility model has the following advantages compared with the prior art:

[0044] The wiping unit 3 includes a wiping tape providing mechanism 31, a wiping assembly 32, and a first driving member. By configuring the wiping assembly 32 to include a first wiping portion 3224 for extending into the liquid injection port 61 and a second wiping portion 3225 located around the outer side of the liquid injection port 61, when performing a wiping cleaning operation, the first driving member drives the wiping assembly 32 to drive the wiping tape 33 to move toward the direction close to the battery liquid injection port 61, and the first wiping portion 3224 of the wiping assembly 32 drives the wiping tape 33 to extend into the liquid injection port 61 to wipe the inner wall area of ​​the battery liquid injection port 61. The second wiping part 3225 of the wiping assembly 32 drives the wiping belt 33 to press down to the area contaminated by the electrolyte around the injection port 61 on the top cover to wipe and clean it, and the wiping assembly can be driven to move back and forth along the first direction and the second direction to clean the inner wall area of ​​the injection port 61 and the area around the injection port 61 on the top cover in a more comprehensive manner, so as to prevent the wiping assembly 32 from being insufficiently cleaned due to the shape and size restrictions in the case of large-area pollution or dead corners on the inner wall of the injection port 61, which affects the subsequent sealing pin welding. This solution replaces the solution in the prior art that the wiping probe is inserted into the injection port to drive the wiping belt to rotate by the movement of the wiping assembly itself, thereby avoiding the problem of the wiping belt breaking during the rotation process and the problem that the wiping head on the wiping belt cannot rotate due to excessive pressure, and also avoiding the problem of low manual wiping efficiency in the prior art. In addition, the electrolyte contamination cleaning of the injection port 61 and the surrounding area of ​​the battery 6 is carried out by combining the air suction unit 1, the detergent supply unit 2 and the wiping unit 3. The battery 6 is moved to the bottom of the battery filling port cleaning device 100 through the conveying device, and the battery filling port cleaning device is pressed down to a preset height. The air suction unit 1 moves along the first direction X to first sweep over the first row of batteries 6, and the electrolyte around the filling port is sucked into the waste liquid storage bin 13 through the cooperation of the negative pressure generator 11 and the suction nozzle 12 to prevent the electrolyte from being contaminated and spread during the wiping process. Next, the detergent supply unit 2 located on one side of the air suction unit 1 is opened synchronously, and the detergent storage bin 21 conveys detergent to the surrounding of the battery 6 filling port 61 through the cleaning agent conveying assembly to dissolve the crystallization of the electrolyte caused by the long standing time of the battery 6 after formation, and the spraying amount of the detergent can be adjusted according to the degree of crystal contamination; then the first row of batteries 6 moves along the conveying direction to the bottom of the wiping unit 3 to wipe the filling port. The mutual cooperation of the air suction unit 1, the cleaning agent supply unit 2 and the wiping unit 3 solves the problems in the prior art of low manual wiping efficiency, difficulty in cleaning electrolyte crystals, and the problem that the electrolyte will be extracted during the vacuum extraction process to remove gas from the battery, thereby contaminating the injection port.

[0045] The problem of low efficiency of manual wiping in the prior art.

[0046] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A battery filling port cleaning device, characterized in that: include: A wiping unit (3), the wiping unit (3) comprising a wiping tape providing mechanism (31), a wiping assembly (32) and a first driving member, the wiping tape providing mechanism (31) and the wiping assembly (32) being respectively connected to the first driving member, the first driving member driving the wiping assembly (32) to drive the wiping tape (33) to move in a direction approaching or away from a battery filling port (61); The wiping assembly (32) comprises a first wiping portion (3224) and a second wiping portion (3225); when wiping, the first wiping portion is configured to extend into the liquid injection port, and the second wiping portion is configured to be located outside the liquid injection port; The wiping assembly (32) is configured to be reciprocatingly movable along a first direction and a second direction, wherein the first direction and the second direction are arranged at an angle.

2. The battery filling port cleaning device according to claim 1, characterized in that: Also includes: An air suction unit (1), the air suction unit (1) comprising a negative pressure generator (11), a suction nozzle (12) and a waste liquid storage bin (13), one end of the suction nozzle being connected to the negative pressure generator (11), the other end of the suction nozzle being arranged toward a battery liquid filling port (61), and a first pipe (10) being arranged in communication between a liquid inlet of the waste liquid storage bin (13) and the suction nozzle (12).

3. The battery filling port cleaning device according to claim 1, characterized in that: Also includes: A detergent supply unit (2), the detergent supply unit (2) comprising a detergent storage bin (21) and a detergent delivery component, the detergent delivery component being connected to the detergent storage bin (21), and the detergent delivery component being used to deliver detergent to a battery liquid filling port (61).

4. The battery filling port cleaning device according to claim 2, characterized in that: The air suction unit (1) further comprises a waste liquid buffer chamber (14) and a first control valve (15); the waste liquid buffer chamber (14) is located above the waste liquid storage bin (13); the inlet of the waste liquid buffer chamber (14) is connected to the first pipeline; and the outlet of the waste liquid buffer chamber is connected to the inlet of the waste liquid storage bin (13) via the first control valve (15).

5. The battery filling port cleaning device according to claim 3, characterized in that: The cleaning agent delivery assembly comprises an air pump (22), a second pipe (23) and a spray head (24); two ends of the second pipe (23) are respectively connected to the cleaning agent storage bin (21) and the spray head (24); and the air pump (22) is arranged in the second pipe (23).

6. The battery filling port cleaning device according to claim 1, characterized in that: The wiping tape providing mechanism (31) comprises a reeling mechanism (311), a reeling mechanism (312) and a second truss (42); the reeling mechanism (311) is used to release the wiping tape (33); the reeling mechanism (312) is used to recycle the wiping tape (33); the reeling mechanism (311) and the reeling mechanism (312) are arranged on the second truss (42) at intervals along a first direction; at least one wiping component (32) is located between the reeling mechanism (311) and the reeling mechanism (312); the wiping component (32) is slidably connected to the second truss (42); and the wiping component (32) is configured to be reciprocatingly movable on the second truss (42) along the first direction.

7. The battery filling port cleaning device according to claim 6, characterized in that: At least one auxiliary roller (313) is provided between the unwinding mechanism (311) and the rewinding mechanism (312); the auxiliary roller (313) is mounted on the second truss (42); and the auxiliary roller (313) is used to control the tension of the wiping belt (33).

8. The battery filling port cleaning device according to claim 6, characterized in that: The wiping assembly (32) comprises a first guide rod (321) and a wiping head assembly (322); one end of the first guide rod (321) is slidably connected to the second truss (42), and the other end of the first guide rod (321) is connected to the wiping head assembly (322); the wiping head assembly (322) comprises a mounting block (3221) and a brush (3222); the brush (3222) is fixedly mounted on the first guide rod (321) via the mounting block (3221); along the height direction, the brush (3222) is arranged above the wiping belt (33); the brush (3222) is configured to drive the wiping belt (33) to approach or move away from the battery filling port along the height direction; the brush (3222) comprises a first wiping portion (3224) and a second wiping portion (3225).

9. The battery filling port cleaning device according to claim 8, characterized in that: Along the height direction, a silicone sheet (3223) is further provided between the mounting block (3221) and the brush (3222), and the brush (3222) and the silicone sheet (3223) are detachably connected.

10. The battery filling port cleaning device according to claim 8, characterized in that: The invention also comprises an air suction unit (1), a detergent supply unit (2) and a first truss (41); the air suction unit (1) and the detergent supply unit (2) are arranged on the first truss (41) at intervals along a first direction, and the air suction unit (1) and the detergent supply unit (2) are both slidably connected to the first truss (41); the air suction unit (1) and the detergent supply unit (2) are configured to be reciprocatingly movable on the first truss (41) along the first direction.

11. The battery filling port cleaning device according to claim 10, characterized in that: The invention also comprises a mounting frame (4), the mounting frame (4) being connected to the first driving member, the first driving member driving the mounting frame (4) to move in a direction close to or away from the battery filling port; the first truss (41) and the second truss (42) being installed on the mounting frame (4) at intervals along a second direction, the second truss (42) being slidably connected to the mounting frame (4), and the second truss (42) being configured to be reciprocatingly movable on the mounting frame (4) along a first direction, the first direction and the second direction being arranged at an angle.

12. The battery filling port cleaning device according to claim 11, characterized in that: In the height direction, a conveying mechanism (5) for conveying batteries is provided below the mounting frame (4); the air suction unit (1), the cleaning agent supply unit (2) and the wiping unit (3) are located above the conveying mechanism; and the conveying direction of the conveying mechanism is the second direction.

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