Battery piece cleaning device

Abstract

The utility model discloses a battery piece cleaning device. The battery piece cleaning device comprises a cleaning tank; the preparation mechanism is used for preparing cleaning liquid, microbubbles exist in the cleaning liquid, and a battery piece is arranged in the cleaning tank in a working state; the recycling mechanism is used for collecting the cleaning liquid overflowing from the cleaning tank; the treatment mechanism is connected with the recovery mechanism, the treatment mechanism at least comprises a detection assembly, a backflow assembly, a waste liquid assembly and a liquid preparation assembly, the detection assembly is used for detecting the cleaning liquid collected by the recovery mechanism, and the backflow assembly is used for conveying the cleaning liquid in the detection assembly into the preparation mechanism; the waste liquid assembly is used for conveying the cleaning liquid in the detection assembly into the waste liquid tank, and the liquid preparation assembly is used for preparing the cleaning liquid in the detection assembly. Residual impurities on the surface of the battery piece and in the grid line groove are stripped by using the microbubbles, and the cleaning liquid is recycled and classified, so that the cleaning liquid in the cleaning groove always has certain cleaning power, and the recycling rate of the cleaning liquid is improved.

Description

Technical Field

[0001] The present application relates to the photovoltaic field, and in particular to a cell cleaning device. Background Art

[0002] Solar cells are cleaned several times during the processing to remove any residues on the cell surface from the previous process. It is also necessary to ensure that no impurities remain on the cell surface when the cell is used in the next process, so as not to affect the processing effect of the next process.

[0003] However, the cleaning power of the existing cleaning device is not strong, and impurities in the grid line groove of the battery cell are difficult to remove. When the grid line width of the battery cell is narrower, the cleaning effect of the battery cell is worse. In addition, the existing cleaning device adopts a method of regularly replacing the cleaning liquid, that is, the cleaning liquid is discharged after being used for a period of time and replaced with a new cleaning liquid. The cleaning liquid under this method will be in a contaminated state for a long time, resulting in a gradual decrease in cleaning ability. Summary of the invention

[0004] The purpose of the present application is to provide a battery cell cleaning device, which utilizes microbubbles to peel off impurities remaining on the surface of the battery cell and in the grid line groove, and recycles and classifies the cleaning liquid, so that the cleaning liquid in the cleaning tank always has a certain cleaning power, improves the cleaning effect on the battery cell, increases the recycling rate of the cleaning liquid, and reduces the production cost of the battery cell.

[0005] To achieve the above-mentioned purpose, the present application provides a battery cell cleaning device, comprising: a cleaning tank; a preparation mechanism connected to the cleaning tank, for preparing a cleaning liquid, wherein the cleaning liquid contains microbubbles, and in a working state, there are battery cells in the cleaning tank so that the cleaning liquid contacts the grid line grooves of the battery cells; a recovery mechanism connected to the cleaning tank, for collecting the cleaning liquid overflowing from the cleaning tank; a processing mechanism connected to the recovery mechanism, the processing mechanism at least comprising a detection component, a reflux component, a waste liquid component and a liquid preparation component, the detection component is used to detect the cleaning liquid collected by the recovery mechanism, the reflux component, the waste liquid component and the liquid preparation component are all connected to the detection component, the reflux component is used to transport the cleaning liquid in the detection component to the preparation mechanism, the waste liquid component is used to transport the cleaning liquid in the detection component to the waste liquid tank, and the liquid preparation component is used to prepare the cleaning liquid in the detection component.

[0006] As a further improvement of the above technical solution: the preparation mechanism includes a preparation liquid inlet pipe, a preparation air inlet pipe, a reactor and a preparation liquid outlet pipe, the preparation liquid inlet pipe and the preparation air inlet pipe are both connected to the inlet of the reactor, the outlet of the reactor is connected to one end of the preparation liquid outlet pipe, and the other end of the preparation liquid outlet pipe is connected to the cleaning tank; wherein, there is a preset pressure in the reactor.

[0007] As a further improvement of the above technical solution: a nozzle is provided on the cleaning tank, and the nozzle is connected to the preparation liquid outlet pipe. In the working state, the nozzle of the nozzle faces the battery cell.

[0008] As a further improvement of the above technical solution: the recovery mechanism at least includes a recovery side plate and a recovery bottom plate, the recovery side plate is arranged around the cleaning tank and has a certain distance between the recovery side plate and the cleaning tank, the recovery side plates and the cleaning tank are respectively connected on both sides of the recovery bottom plate, and a recovery tank with a accommodating space is formed outside the cleaning tank; the top of the recovery side plate is higher than the top of the cleaning tank, the recovery tank is connected to one end of the recovery pipe, and the other end of the recovery pipe is connected to the processing mechanism.

[0009] As a further improvement of the above technical solution: the recovery mechanism also includes an overflow plate, one end of the overflow plate is connected to the top of the cleaning tank, and the other end extends obliquely in a direction away from the cleaning tank until it connects with the top of the recovery side plate, and an overflow hole is opened on the overflow plate, and the cleaning tank and the recovery tank are connected through the overflow hole.

[0010] As a further improvement of the above technical solution: the processing mechanism includes a detection tank, a first reflux pipe, a liquid distribution pipe and a first waste liquid pipe, the detection tank is connected to the recovery pipe, a detector is arranged in the detection tank, the first reflux pipe, the liquid distribution pipe and one end of the first waste liquid pipe are all connected to the detection tank, the other end of the first reflux pipe is connected to the cleaning tank, the other end of the liquid distribution pipe is connected to the liquid distribution component, and the other end of the first waste liquid pipe is connected to the waste liquid tank; wherein, the first reflux pipe, the liquid distribution pipe and the first waste liquid pipe are all provided with a first valve.

[0011] As a further improvement of the above technical solution: the liquid preparation component includes a liquid preparation tank, a liquid preparation inlet pipe and a filter, a detector is arranged in the liquid preparation tank, a filter is arranged on the liquid preparation pipeline, and the liquid preparation tank is connected to the liquid preparation inlet pipe; the liquid preparation tank is also connected to a second reflux pipeline and a second waste liquid pipeline, the second reflux pipeline and the second waste liquid pipeline are both provided with a second valve, the second reflux pipeline is connected to the preparation mechanism, and the second waste liquid pipeline is connected to the waste liquid tank.

[0012] As a further improvement of the above technical solution: the structure of the filter can adopt any of the following structures or a combination of two or more structures: (1) the filter adopts a ceramic membrane; (2) the filter adopts a PVC organic membrane; (3) the filter adopts a PVDF membrane; wherein the ceramic membrane has a first preset pore size, the PVC organic membrane has a second preset pore size, and the PVDF membrane has a third preset pore size, and the first preset pore size, the second preset pore size and the third preset pore size are the same or different.

[0013] As a further improvement of the above technical solution: the battery cell cleaning device also includes a transmission mechanism, which is arranged in the cleaning tank, and in a working state, at least one side of the battery cell is immersed in the cleaning liquid; or, the battery cell is installed in a carrier, and in a working state, the carrier is immersed in the cleaning liquid.

[0014] To achieve the above-mentioned purpose, the present application provides a battery cell cleaning device, characterized in that it includes: a cleaning tank; a preparation mechanism, the preparation mechanism includes a preparation liquid inlet pipe, a preparation air inlet pipe, a reactor and a preparation liquid outlet pipe, the preparation liquid inlet pipe and the preparation air inlet pipe are both connected to the inlet of the reactor, the outlet of the reactor is connected to one end of the preparation liquid outlet pipe, and the other end of the preparation liquid outlet pipe is connected to the cleaning tank, and the reactor has a preset pressure; a recovery mechanism is connected to the cleaning tank, and a recovery tank with a accommodating space is formed outside the cleaning tank; a processing mechanism includes a detection tank, the detection tank is connected to the recovery tank, a detector is arranged in the detection tank, a first reflux pipe, a liquid distribution pipe and a first waste liquid pipe are connected to the detection tank, the first reflux pipe is connected to the preparation mechanism, the liquid distribution pipe is connected to the liquid distribution component, the first waste liquid pipe is connected to the waste liquid tank, and the first reflux pipe, the liquid distribution pipe and the first waste liquid pipe are all provided with a first valve.

[0015] It can be seen that the battery cell cleaning device provided by the present application prepares a cleaning liquid containing microbubbles, utilizes the characteristics of the microbubbles to peel off the impurities remaining on the surface of the battery cell and in the grid line groove, and classifies the overflowed cleaning liquid by a recycling process, so that the cleaning liquid in the cleaning tank always has a certain cleaning power, thereby improving the cleaning effect of the battery cell, increasing the recycling rate of the cleaning liquid, and reducing the production cost of the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 is a schematic diagram of the structure of a battery cell cleaning device provided in an embodiment of the present application;

[0018] Figure 2 It is a structural schematic diagram of a transmission mechanism provided in an embodiment of the present application;

[0019] Figure 3 is a schematic diagram of the structure of a carrier provided in an embodiment of the present application;

[0020] Figure 4 is a schematic diagram of the structure of the recovery mechanism provided in an embodiment of the present application, wherein the recovery tank is located on one side of the cleaning tank;

[0021] Figure 5 is a schematic diagram of the structure of the recovery mechanism provided in an embodiment of the present application, wherein the recovery tank is arranged around the cleaning tank;

[0022] Figure 6 It is a pipe connection diagram of a cell cleaning device provided in an embodiment of the present application;

[0023] Figure 7 It is a flow diagram of the cleaning liquid of the cell cleaning device provided in the embodiment of the present application, specifically the internal flow direction of the preparation mechanism and the flow direction between the preparation mechanism and the cleaning tank;

[0024] Figure 8 It is a pipe connection diagram of the battery cell cleaning device provided in an embodiment of the present application, specifically the flow direction of the cleaning liquid returning to the preparation mechanism after detection, and the flow direction of the preparation mechanism flowing into the cleaning tank;

[0025] Fig. 9 It is a pipe connection diagram of the battery cell cleaning device provided in an embodiment of the present application, specifically the flow direction of the cleaning liquid flowing into the liquid preparation component after detection, the flow direction of the cleaning liquid flowing to the preparation mechanism after liquid preparation, and the flow direction of the preparation mechanism flowing into the cleaning tank;

[0026] Fig.10 It is a pipe connection diagram of a cell cleaning device provided in an embodiment of the present application, specifically the flow direction of the cleaning liquid into the liquid preparation component after detection, and the flow direction of the cleaning liquid to the waste liquid tank after the liquid preparation detection;

[0027] Fig.11 It is a pipe connection diagram of the battery cell cleaning device provided in an embodiment of the present application, specifically the flow direction of the cleaning liquid into the waste liquid tank after detection;

[0028] Fig.12 It is a structural schematic diagram of the cleaning tank and the cleaning liquid flow diagram provided in the embodiment of the present application.

[0029] Reference numerals:

[0030] 10-cleaning tank; 101-sprinkler;

[0031] 20-preparation mechanism; 201-preparation liquid inlet pipe; 202-preparation gas inlet pipe; 203-reactor; 204-preparation liquid outlet pipe; 205-water storage tank; 206-gas storage tank;

[0032] 30-recovery mechanism; 301-recovery side plate; 302-recovery bottom plate; 303-overflow plate;

[0033] 40-processing mechanism; 401-detection tank; 402-liquid preparation component; 4021-liquid preparation inlet pipe; 4022-liquid preparation tank; 403-waste liquid tank; 404-detector; 405-first valve; 406-second valve;

[0034] 50-battery cell;

[0035] 60- Vehicles;

[0036] 70-Transmission mechanism. DETAILED DESCRIPTION

[0037] To make the purpose, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings. Terms such as "upper", "above", "lower", "below", "first end", "second end", "one end", "the other end" used in the present application to represent spatial relative positions are used to describe the relationship of a unit or feature relative to another unit or feature as shown in the accompanying drawings for the purpose of convenience of explanation. Terms of spatial relative position may be intended to include different orientations of the device in use or work other than the orientation shown in the figure. For example, if the device in the figure is turned over, the unit described as being "below" or "below" other units or features will be located "above" other units or features. Therefore, the exemplary term "below" can encompass both the above and below orientations. The device can be oriented in other ways (rotated 90 degrees or other orientations), and the spatially related descriptive words used in this article are interpreted accordingly.

[0038] In addition, the terms "installed", "set", "provided with", "connected", "slidingly connected", "fixed", and "sleeved" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] The background technology of this application points out that the cleaning power of the existing cleaning devices is not strong, and the cleaning effect of the battery cells is poor. Specifically, most of the existing cleaning devices use spraying, pulling and other methods to clean the battery cells. When the cleaning liquid flows on the surface of the battery cell, it can take away the liquid and some impurities remaining on the surface of the battery cell. Since the grid line groove on the surface of the battery cell has a certain depth, under this method, it is difficult for the cleaning liquid to flush away the impurities remaining in the deep grid line groove, resulting in the battery cell After being cleaned by the cleaning device, the cleanliness is still difficult to ensure; in addition, some cleaning devices use ultrasonic cleaning, but due to the acidic environment and the large volume of the tank body, the material of the tank body can only be selected from synthetic resin materials, which has a certain impact on the effect of ultrasonic cleaning. At the same time, the high-frequency vibration of ultrasonic cleaning may damage certain materials.

[0040] Based on this, the present application provides a battery cell cleaning device. The cleaning liquid prepared by the battery cell cleaning device contains microbubbles, and the impurities remaining on the surface of the battery cell and in the grid line groove are stripped by using the characteristics of the microbubbles, and the overflowed cleaning liquid is classified by recycling treatment, so that the cleaning liquid in the cleaning tank always has a certain cleaning power, thereby improving the cleaning effect of the battery cell, and increasing the recycling rate of the cleaning liquid, and reducing the production cost of the battery cell.

[0041] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the embodiments described in this application are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0042] See attached Figure 1As shown, the battery cell cleaning device provided in the embodiment of the present application includes a cleaning tank 10, a preparation mechanism 20, a recovery mechanism 30 and a processing mechanism 40. Among them, the preparation mechanism 20 is used to prepare the cleaning liquid, and is connected to the cleaning tank 10, so as to transport the prepared cleaning liquid to the cleaning tank 10; the recovery mechanism 30 is used to collect the cleaning liquid overflowing from the cleaning tank 10 to ensure that the cleaning liquid in the cleaning tank 10 is always at a preset liquid volume, to avoid overflow due to excessive amount of cleaning liquid in the cleaning tank 10, and the setting of the recovery mechanism 30 can make the cleaning liquid in the cleaning tank 10 in a circulating flow state, and the cleaning ability of the new cleaning liquid entering the cleaning tank 10 is strong, so as to ensure that the cleaning liquid in the cleaning tank 10 always has a certain cleaning power, improve the cleaning efficiency and improve the cleaning effect; the processing mechanism 40 is connected to the recovery mechanism 30, and is used to process the cleaning liquid collected by the recovery mechanism 30, and the processing mechanism 40 At least three working states are included. In the first working state, the processing mechanism 40 detects the collected cleaning liquid and conveys it to the preparation mechanism 20. In the second working state, the processing mechanism 40 detects the collected cleaning liquid and conveys it to the liquid preparation component 402. The liquid preparation component 402 is connected to the cleaning tank 10. In the third working state, the processing mechanism 40 detects the collected cleaning liquid and conveys it to the waste liquid tank 403. That is to say, the processing mechanism 40 detects the recovered cleaning liquid, determines its state, and adjusts its flow direction to achieve the distribution of the cleaning liquid. Since the distribution direction includes backflow to the preparation mechanism 20 and conveyance to the liquid preparation component 402, the reuse of the cleaning liquid can be improved, thereby reducing the production cost of the battery cell 50.

[0043] In this embodiment, the cleaning liquid prepared by the preparation mechanism 20 contains microbubbles, wherein microbubbles refer to small bubbles, and their diameter is usually between 0.05 microns and 100 microns. Since the microbubbles are formed in the liquid, they have a small volume and surface area, which is beneficial to increase the contact area and reaction efficiency with the battery cell 50. The cleaning liquid containing microbubbles is used to clean the battery cell 50 with the gate line groove, so that the microbubbles can enter the narrow gate line groove and clean the surface of the gate line groove, thereby further improving the cleanliness of the battery cell 50 after cleaning.

[0044] In one possible implementation, see the attached Figure 1 and attached Figure 7As shown, the preparation mechanism 20 includes a preparation liquid inlet pipe 201, a preparation air inlet pipe 202, a reactor 203 and a preparation liquid outlet pipe 204. The preparation liquid inlet pipe 201 and the preparation air inlet pipe 202 are both connected to the inlet of the reactor 203, the outlet of the reactor 203 is connected to one end of the preparation liquid outlet pipe 204, and the other end of the preparation liquid outlet pipe 204 is connected to the cleaning tank 10. The reactor 203 has a preset pressure. The preparation liquid inlet pipe 201 and the preparation gas inlet pipe 202 supply gas and liquid to the reactor 203 respectively. After the gas and liquid are mixed in the reactor 203, the gas will dissolve in the liquid. Since there is pressure in the reactor 203, the pressure will affect the speed and degree of gas dissolution, so that the dissolution efficiency of the gas in the liquid is improved, and the gas is dissolved more evenly and fully. In the process of contact and dissolution between the gas molecules and the liquid molecules, the water molecules will be ionized to produce dissolved electrolytes. The electrolyte ions are adsorbed on the surface of the microbubbles to form a charged surface layer, so that the cleaning liquid flowing out through the preparation liquid outlet pipe 204 has microbubbles with surface charges. The microbubbles interact with the dirt or attachments on the surface of the battery cell 50 through the charges carried on their surfaces, thereby improving the cleaning effect and removal ability. In other words, the higher the concentration of the microbubbles in the cleaning liquid and the more charges there are, the stronger the stripping ability of the microbubbles is, and the better the cleaning effect is.

[0045] In addition, the microbubbles will burst due to the shear force exerted on them by the liquid when it flows or stirs, and will also burst due to the friction or pressure caused by their direct contact with the surface of the battery cell 50. When the microbubbles burst, they will release energy and impact force, which can effectively wash the surface of the battery cell 50 and knock down and remove dirt, grease or other pollutant particles attached to the surface of the battery cell 50. In addition, the local high temperature and high pressure generated when the microbubbles burst also help to improve the cleaning effect. In this way, using a cleaning liquid with microbubbles to clean the surface of the battery cell 50 can greatly enhance the cleaning ability and cleaning efficiency of the battery cell 50.

[0046] In practical applications, see Appendix Figure 1As shown, the preparation inlet pipe 201 is connected to the water tank 205, and the water tank 205 stores pure water. The preparation inlet pipe 202 is connected to the gas tank 206, and the gas tank 206 stores clean gas. The clean gas can be compressed air, nitrogen, ozone, hydrogen, etc. that have been purified. Due to the characteristics of the microbubbles themselves, that is, the charges carried on the surface and the rupture of the microbubbles are used to clean the stains on the surface of the battery cell 50. Therefore, the use of pure water and clean gas can generate a cleaning liquid with microbubbles, thereby realizing low-cost cleaning of the battery cell 50. Of course, the liquid in the water tank 205 and the gas in the gas tank 206 can be selected accordingly according to actual needs. For example, if the battery cell cleaning device is used to remove oil stains on the surface of the battery cell 50, the clean gas is preferably ozone (or oxygen). Among them, the cleaning liquid is prepared by using ozone as the gas, and the microbubbles can be used to enter the grid line groove of the battery cell 50 to remove organic matter on the surface of the grid line groove.

[0047] Furthermore, the reactor 203 may adopt a pressure gas dissolving tank. Specifically, the pressure gas dissolving tank at least comprises a gas dissolving tank body, a gas inlet and outlet, and a pressure regulating valve. When the pressure gas dissolving tank is working, the gas is first pressurized through the gas inlet, and the gas will dissolve in the solution in the gas dissolving tank body. As the gas pressure increases, the solubility will also increase. When the gas pressure in the tank reaches a set value, the pressure regulating valve will automatically start to release the excess gas to keep the pressure in the tank stable.

[0048] Furthermore, the preparation mechanism 20 also includes a booster pump, the inlet of the booster pump is connected to the preparation liquid inlet pipe 201 and the preparation air inlet pipe 202, and the outlet of the booster pump is connected to the pressure gas dissolving tank through the gas dissolving pipe. Specifically, after the gas and liquid are pre-mixed in the booster pump, they enter the pressure gas dissolving tank through the gas dissolving pipe. In this scheme, the pressure in the pressure gas dissolving tank is the same as the liquid outlet pressure of the booster pump, so as to balance the pressure inside the preparation mechanism 20 and ensure stable water outlet flow and pressure. By setting a booster pump, a greater pressure is applied to the mixture of gas and liquid, so that the gas is more easily dissolved in water, the production efficiency is improved, time and cost are saved, and the booster pump can provide stable pressure and flow to ensure the quality and stability of the cleaning solution.

[0049] It should be noted that in the case of mixing and pressurizing gas and liquid, other devices can be used instead of the booster pump. For example, a compressor can be used instead of the booster pump. The compressor pressurizes the gas-liquid mixture with compressed air or compressed gas to accelerate the rate at which the gas dissolves into the liquid.

[0050] In one possible implementation, see the attached Figure 2 , Attachment Figure 3As shown, a nozzle 101 is provided on the cleaning tank 10, and the nozzle 101 is connected to the prepared liquid outlet pipe 204. In the working state, the nozzle of the nozzle 101 faces the battery cell 50. Specifically, the nozzle 101 is installed in the cleaning tank 10, and the prepared cleaning liquid is sprayed onto the battery cell 50 located in the cleaning tank 10 through the nozzle 101, so that the cleaning liquid can flow directly to the surface of the battery cell 50, and the microbubbles in the cleaning liquid enter the grid line groove of the battery cell 50 to remove the stains on the surface of the grid line groove. Furthermore, the nozzle 101 is installed on the spray drive member, and the nozzle 101 is driven by the spray drive member to swing, so that the cleaning range of the nozzle 101 can be expanded, or the battery cell 50 can be repeatedly cleaned.

[0051] In practical applications, see Appendix Figure 3 As shown, the battery cell 50 is installed in the carrier 60. In the working state, the carrier 60 is immersed in the cleaning liquid. By setting the carrier 60, the battery cell 50 can always be in a stable state during the cleaning process, thereby avoiding damage to the battery cell 50 caused by the cleaning vibration. In this scheme, the nozzle of the nozzle 101 is set toward the carrier 60. If only one side of the battery cell 50 is to be cleaned, the nozzle 101 only needs to be set toward one side of the battery cell 50. If both sides of the battery cell 50 are to be cleaned, the nozzles 101 with corresponding directions are set on both sides of the battery cell 50.

[0052] In addition, see Appendix Figure 2 As shown, the battery cell 50 can also be directly transported through the transmission mechanism 70, and the nozzle 101 sprays and cleans the battery cell 50 during the transportation process. Specifically, the battery cell cleaning device also includes a transmission mechanism 70, which is arranged in the cleaning tank 10. In the working state, at least one side of the battery cell 50 is immersed in the cleaning liquid. In this scheme, the battery cell 50 is transported along the transmission direction, and a plurality of nozzles 101 are arranged at intervals along the transmission direction, and are all connected to a liquid supply pipeline, and the liquid supply pipeline is connected to the prepared liquid outlet pipe 204. If only one side of the battery cell 50 is to be cleaned, the non-cleaned surface of the battery cell 50 is placed on the transmission mechanism 70, and it is only necessary to set the nozzle 101 toward the top of the transmission mechanism 70. If both sides of the battery cell 50 are to be cleaned, the nozzles 101 with corresponding directions are set above and below the transmission mechanism 70, and the cleaning liquid can be used to spray and clean the battery cell 50 during the transmission process. Among them, the transmission device can adopt a roller conveying structure.

[0053] In one possible implementation, see the attached Fig.12As shown, the recovery mechanism 30 at least includes a recovery side plate 301 and a recovery bottom plate 302. The recovery side plate 301 is arranged around the cleaning tank 10 and has a certain distance from the cleaning tank 10. The recovery side plate 301 and the cleaning tank 10 are respectively connected on both sides of the recovery bottom plate 302 to form a recovery tank with a accommodating space outside the cleaning tank 10; the top of the recovery side plate 301 is higher than the top of the cleaning tank 10, the recovery tank is connected to one end of the recovery pipe, and the other end of the recovery pipe is connected to the processing mechanism 40. When the amount of cleaning liquid in the cleaning tank 10 is too high, so that the liquid level is higher than the side wall of the cleaning tank 10, it can flow into the recovery tank. In this way, it can not only ensure that the cleaning liquid in the cleaning tank 10 will not overflow due to continuous liquid supply, but also collect the used cleaning liquid to avoid the microbubble content in the cleaning tank 10 being too low, resulting in reduced cleaning efficiency. It should be noted that the recovery side plate 301 can be arranged around at least one side of the cleaning tank 10, see the attached Figure 4 As shown, when the recovery side plate 301 is arranged around one side, the recovery tank is only located on one side of the cleaning tank 10, see the attached Figure 5 As shown, when the recovery side plate 301 is arranged around the four sides, the recovery tank and the cleaning tank 10 together form a U-shaped structure, so that the cleaning liquid in the cleaning tank 10 can be discharged in time.

[0054] Further, see Appendix Fig.12 As shown, the recovery mechanism 30 also includes an overflow plate 303, one end of the overflow plate 303 is connected to the top of the cleaning tank 10, and the other end extends obliquely in a direction away from the cleaning tank 10 until it is connected to the top of the recovery side plate 301. An overflow hole is provided on the overflow plate 303, and the cleaning tank 10 and the recovery tank are connected through the overflow hole. When there is too much cleaning liquid in the cleaning tank 10, the cleaning liquid can flow into the recovery tank from the overflow hole. Among them, the overflow plate 303 is inclined, which can slow down the speed of the liquid level rising, provide a buffer for the discharge of excess liquid, and reduce the disturbance of the liquid in the cleaning tank 10.

[0055] In a preferred embodiment, the angle α between the inclined extension direction of the overflow plate 303 and the side wall of the cleaning tank 10 is greater than 0° and less than 45°, so that the space of the cleaning tank 10 is reasonably utilized and the liquid discharge process is smoother and more stable.

[0056] In one possible implementation, see the attached Figure 6As shown, the processing mechanism 40 includes a detection tank 401, a first reflux pipe, a liquid distribution pipe and a first waste liquid pipe. The detection tank 401 is connected to the recovery pipe. A detector 404 is arranged in the detection tank 401. One end of the first reflux pipe, the liquid distribution pipe and the first waste liquid pipe are all connected to the detection tank 401, the other end of the first reflux pipe is connected to the cleaning tank 10, the other end of the liquid distribution pipe is connected to the liquid distribution component 402, and the other end of the first waste liquid pipe is connected to the waste liquid tank 403; wherein, the first reflux pipe, the liquid distribution pipe and the first waste liquid pipe are all provided with a first valve 405. Specifically, the cleaning liquid in the recovery tank enters the detection tank 401 through the recovery pipe. After the detector 404 detects the cleaning liquid in the detection tank 401, one of the first valves 405 on the first reflux pipe, the liquid distribution pipe and the first waste liquid pipe will open to control the flow direction of the cleaning liquid. See the attached Figure 8 As shown in the figure, after the cleaning liquid is detected by the detector 404, the detector 404 determines that the components of the cleaning liquid can be reused and directly transports it to the water storage tank 205; see the attached Fig. 9 As shown in the figure, the cleaning liquid flows into the liquid preparation component 402 for liquid preparation after being detected by the detector 404. The detector 404 is arranged in the liquid preparation tank 4022. After the cleaning liquid is obtained after the liquid preparation, if it is determined that the components of the cleaning liquid can be reused, it is directly transported to the water storage tank 205; see the attached Fig.10 As shown in the figure, the cleaning liquid flows into the liquid preparation component 402 for liquid preparation after being detected by the detector 404. The detector 404 is arranged in the liquid preparation tank 4022. After the cleaning liquid is obtained after the liquid preparation, if it is determined that the components of the cleaning liquid cannot be reused, it is directly transported to the waste liquid tank 403; see the attached Fig.11 As shown in the figure, after the cleaning liquid is detected by the detector 404, the detector 404 determines that the components of the cleaning liquid cannot be reused and will be directly transported to the waste liquid tank 403.

[0057] Of course, see Appendix Figure 6 As shown, the battery cell cleaning device may also include a controller. There are communication lines (wired or wireless communication lines) between the detector 404 and the first valve 405 and the controller. The controller can receive the signal sent by the detector 404, and then obtain the judgment of the detector 404 on the composition of the cleaning liquid in the detection tank 401, and then control the opening or closing of the first valve 405.

[0058] Furthermore, the first reflux pipeline, the liquid distribution pipeline and the first waste liquid pipeline are all provided with water pumps. By providing the water pumps, kinetic energy can be provided to the liquids in the first reflux pipeline, the liquid distribution pipeline and the first waste liquid pipeline.

[0059] In actual use, the detector 404 includes a pH sensor, an impurity sensor and a gas sensor. The pH sensor, the impurity sensor and the gas sensor are all installed in the detection tank 401, and there is a certain distance between them to avoid interfering with the test data, so as to ensure accurate monitoring results. In addition, the pH sensor, the impurity sensor and the gas sensor are all electrically connected to the controller, and the controller receives the numerical results transmitted by the pH sensor, the impurity sensor and the gas sensor, and judges the results, and selects to open or close the first valve 405 on the first reflux pipeline, the liquid distribution pipeline and the first waste liquid pipeline according to the judgment.

[0060] Among them, a PH sensor is set to monitor the acidity and alkalinity of the cleaning liquid in real time and provide digital results. Since the battery cell cleaning device can be installed after the electroplating process and the developing process, most of the processing liquids used in the electroplating process and the developing process have certain acidity and alkalinity. Therefore, the PH sensor is set to detect the current state of the cleaning liquid to determine whether the current PH value of the cleaning liquid can be used again. The available value range and the liquid dispensing range of the PH value can be set in advance. If the pH value of the cleaning liquid is within the preset numerical range, the first valve 405 on the first reflux pipe is opened to allow the cleaning liquid in the detection tank 401 to flow back to the water storage tank 205 through the first reflux pipe. Since the probability of microbubbles bursting during long-distance flow is high, the cleaning liquid after use can only be reused as a liquid for preparing cleaning liquid; if the pH value of the cleaning liquid is within the range of liquid dispensing values, the first valve 405 on the liquid dispensing pipe is opened, and the pH value of the cleaning liquid can reach the usable numerical range by dispensing the cleaning liquid; if the pH value of the cleaning liquid is neither within the range of liquid dispensing values ​​nor within the usable numerical range, it is difficult to reuse, and the first valve 405 on the first waste liquid pipe is opened to discharge the cleaning liquid directly into the waste liquid tank 403.

[0061] By setting up an impurity sensor, the impurity content in the cleaning liquid can be monitored. If the impurity content is too high, it can be directly discharged into the waste liquid tank 403. If the impurity content is within the treatable range, a filter can be set on the first reflux pipe and the liquid distribution pipe to filter the cleaning liquid flowing through them so as to meet the conditions for reuse in terms of impurity content.

[0062] By setting up gas sensors to detect the solubility of various gases in the cleaning liquid, we can have a more comprehensive understanding of the gas composition of the cleaning liquid, control the quality and applicability of the cleaning liquid, and avoid the situation where the gas cannot dissolve in the liquid when preparing the liquid.

[0063] That is to say, the flow direction of the cleaning liquid is determined based on the values ​​transmitted by the above-mentioned multiple detectors 404, wherein the waste liquid judgment adopts an exclusive logic method, that is, if any detector 404 shows that the cleaning liquid cannot be reused, the controller will open the first valve 405 on the first waste liquid pipeline to discharge the cleaning liquid into the waste liquid tank 403.

[0064] It should be noted that the detector 404 can also be selected according to the process link of the battery cell cleaning device, the composition of the cleaning solution and the structure of the battery cell 50, and the number and type of the detector 404 are not limited in this application.

[0065] In one possible implementation, see the attached Figure 1 As shown, the liquid preparation component 402 includes a liquid preparation tank 4022, a liquid preparation inlet pipe 4021 and a filter. The detector 404 is arranged in the liquid preparation tank 4022, and the filter is arranged on the liquid preparation pipeline. The liquid preparation tank 4022 is connected to the liquid preparation inlet pipe 4021;

[0066] The liquid preparation tank 4022 is also connected to a second reflux pipe and a second waste liquid pipe, and the second reflux pipe and the second waste liquid pipe are both provided with a second valve 406. Specifically, the detector 404 provided in the liquid preparation tank 4022 will detect the prepared cleaning liquid again to determine whether it can be directly returned to the water storage tank 205 and reused as liquid for preparing cleaning liquid.

[0067] There are at least three liquid inlet pipes 4021 to respectively deliver alkaline liquid, acidic liquid and pure water to the liquid preparation tank 4022. The present application does not limit the components of the alkaline liquid and the acidic liquid, and relevant personnel can make corresponding adjustments as needed based on making the pH value of the cleaning liquid reach an available value range and avoiding reactions with the cleaning liquid components to generate cleaning components.

[0068] In practical applications, the filter structure can adopt any of the following structures or a combination of two or more structures:

[0069] (1) The filter uses a ceramic membrane;

[0070] (2) The filter uses PVC organic membrane;

[0071] (3) The filter uses PVDF membrane;

[0072] Among them, the ceramic membrane has a first preset pore size, the PVC organic membrane has a second preset pore size, and the PVDF membrane has a third preset pore size. The first preset pore size, the second preset pore size and the third preset pore size are the same or different. For example, the filter adopts a combination of a ceramic membrane and a PVC organic membrane, that is, when the cleaning liquid flows through the filter, it will flow through the ceramic membrane and the PVC organic membrane in sequence. In order to improve the cleanliness, the pore size can be reduced in sequence along the flow direction, that is, the first preset pore size of the ceramic membrane is larger than the second preset pore size of the PVC organic membrane. In this scheme, the first preset pore size and the second preset pore size are different. Of course, the structure and pore size of the filter can be replaced accordingly according to actual needs.

[0073] It can be seen that the present application provides a battery cell cleaning device, which prepares a cleaning liquid containing microbubbles, utilizes the characteristics of the microbubbles to peel off the impurities remaining on the surface of the battery cell 50 and in the grid line groove, and classifies the overflowed cleaning liquid by a recycling process, so that the cleaning liquid in the cleaning tank 10 always has a certain cleaning power, thereby improving the cleaning effect of the battery cell 50, and increasing the recycling rate of the cleaning liquid, thereby reducing the production cost of the battery cell 50.

[0074] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A battery cell cleaning device, characterized in that: include: cleaning tank; A preparation mechanism connected to the cleaning tank and used for preparing a cleaning solution, wherein the cleaning solution contains microbubbles, and in a working state, a battery cell is contained in the cleaning tank so that the cleaning solution contacts the grid line grooves of the battery cell; A recovery mechanism, connected to the cleaning tank, for collecting the cleaning liquid overflowing from the cleaning tank; A processing mechanism is connected to the recovery mechanism, and the processing mechanism at least includes a detection component, a reflux component, a waste liquid component and a liquid preparation component. The detection component is used to detect the cleaning liquid collected by the recovery mechanism, and the reflux component, the waste liquid component and the liquid preparation component are all connected to the detection component. The reflux component is used to transport the cleaning liquid in the detection component to the preparation mechanism, the waste liquid component is used to transport the cleaning liquid in the detection component to the waste liquid tank, and the liquid preparation component is used to prepare the cleaning liquid in the detection component.

2. The cell cleaning device according to claim 1, characterized in that: The preparation mechanism comprises a preparation liquid inlet pipe, a preparation air inlet pipe, a reactor and a preparation liquid outlet pipe, wherein the preparation liquid inlet pipe and the preparation air inlet pipe are both connected to the inlet of the reactor, the outlet of the reactor is connected to one end of the preparation liquid outlet pipe, and the other end of the preparation liquid outlet pipe is connected to the cleaning tank; Wherein, the reactor has a preset pressure.

3. The battery cell cleaning device according to claim 2, characterized in that: The cleaning tank is provided with a nozzle, which is connected to the prepared liquid outlet pipe. In a working state, the nozzle of the nozzle faces the battery sheet.

4. The battery cell cleaning device according to claim 1, characterized in that: The recycling mechanism at least includes a recycling side plate and a recycling bottom plate, the recycling side plate is arranged around the cleaning tank and has a certain distance from the cleaning tank, the two sides of the recycling bottom plate are respectively connected to the recycling side plate and the cleaning tank, and a recycling tank with a accommodating space is formed outside the cleaning tank; The top of the recovery side plate is higher than the top of the cleaning tank. The recovery tank is connected to one end of a recovery pipe, and the other end of the recovery pipe is connected to the processing mechanism.

5. The battery cell cleaning device according to claim 4, characterized in that: The recovery mechanism also includes an overflow plate, one end of which is connected to the top of the cleaning tank, and the other end of which extends obliquely away from the cleaning tank until it connects with the top of the recovery side plate. An overflow hole is provided on the overflow plate, and the cleaning tank and the recovery tank are connected through the overflow hole.

6. The cell cleaning device according to any one of claims 4-5, characterized in that: The processing mechanism includes a detection tank, a first reflux pipe, a liquid distribution pipe and a first waste liquid pipe, the detection tank is connected to the recovery pipe, a detector is arranged in the detection tank, the first reflux pipe, the liquid distribution pipe and one end of the first waste liquid pipe are all connected to the detection tank, the other end of the first reflux pipe is connected to the cleaning tank, the other end of the liquid distribution pipe is connected to the liquid distribution component, and the other end of the first waste liquid pipe is connected to the waste liquid tank; Wherein, the first reflux pipeline, the liquid distribution pipeline and the first waste liquid pipeline are all provided with a first valve.

7. The battery cell cleaning device according to claim 6, characterized in that: The liquid dispensing assembly comprises a liquid dispensing tank, a liquid dispensing inlet pipe and a filter, wherein a detector is arranged in the liquid dispensing tank, a filter is arranged on the liquid dispensing pipeline, and the liquid dispensing tank is connected to the liquid dispensing inlet pipe; The liquid preparation tank is also connected to a second reflux pipe and a second waste liquid pipe, both of which are provided with a second valve, and the second reflux pipe is connected to the preparation mechanism, and the second waste liquid pipe is connected to the waste liquid tank.

8. The cell cleaning device according to claim 7, characterized in that: The structure of the filter can adopt any of the following structures or a combination of two or more structures: (1) The filter adopts a ceramic membrane; (2) The filter adopts PVC organic membrane; (3) The filter uses a PVDF membrane; Wherein, the ceramic membrane has a first preset pore size, the PVC organic membrane has a second preset pore size, and the PVDF membrane has a third preset pore size, and the first preset pore size, the second preset pore size and the third preset pore size are the same or different.

9. The cell cleaning device according to claim 1, characterized in that: The battery cell cleaning device further comprises a transmission mechanism, which is arranged in the cleaning tank, and in a working state, at least one side of the battery cell is immersed in the cleaning liquid; Alternatively, the battery cells are installed in a carrier, and in a working state, the carrier is immersed in the cleaning liquid.

10. A battery cell cleaning device, characterized in that: include: cleaning tank; A preparation mechanism, the preparation mechanism comprising a preparation liquid inlet pipe, a preparation air inlet pipe, a reactor and a preparation liquid outlet pipe, the preparation liquid inlet pipe and the preparation air inlet pipe are both connected to the inlet of the reactor, the outlet of the reactor is connected to one end of the preparation liquid outlet pipe, the other end of the preparation liquid outlet pipe is connected to the cleaning tank, and the reactor has a preset pressure; A recovery mechanism is connected to the cleaning tank and forms a recovery tank with a receiving space outside the cleaning tank; The processing mechanism includes a detection tank, which is connected to the recovery tank, a detector is arranged in the detection tank, a first reflux pipe, a liquid distribution pipe and a first waste liquid pipe are connected to the detection tank, the first reflux pipe is connected to the preparation mechanism, the liquid distribution pipe is connected to the liquid distribution component, the first waste liquid pipe is connected to the waste liquid tank, and the first reflux pipe, the liquid distribution pipe and the first waste liquid pipe are all provided with a first valve.

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