A cleaning device and cleaning system
By designing an air-blowing component in the cleaning device to allow the cleaning fluid to float on the surface and flow towards the side wall, the problem of residue on the vehicle surface is solved, achieving efficient cleaning and stable production, and improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TONGWEI SOLAR (PENGSHAN) CO LTD
- Filing Date
- 2025-03-24
- Publication Date
- 2026-06-12
AI Technical Summary
In the PE-poly process, residues deposited on the surface of graphite or quartz silicon wafer carriers affect the uniformity and quality of subsequent deposition, leading to a shortened carrier lifespan. Frequent cleaning results in high-frequency cleaning, reducing production capacity and yield.
Design a cleaning device that includes a cleaning tank and an air blowing assembly. The air blowing assembly blows air onto the surface of the cleaning liquid, causing floating materials to flow toward the sidewall, reducing foreign matter residue, reducing cleaning frequency, and improving cleaning efficiency and capacity.
It effectively reduces foreign matter residue, lowers the frequency of cleaning, improves production efficiency, ensures stable operation of the production line, and enhances product quality and production capacity.
Smart Images
Figure CN224346547U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of solar cell technology, and in particular to a cleaning device and cleaning system. Background Technology
[0002] The field of solar cell technology mainly involves the technology of converting solar energy into electrical energy, which is the core of photovoltaic power generation. Tunnel Oxide Passivated Contact (TOPCon) cells are a high-efficiency solar cell technology that is based on the selective carrier principle and employs a tunneling oxide passivated contact structure.
[0003] PE-poly (plasma-enhanced polymer deposition) is a key process in the production of passivated contact photovoltaic cells, mainly used to deposit multilayer composite films such as tunneling layers, polycrystalline silicon layers, and doped layers on the silicon wafer surface. This process is based on plasma-enhanced chemical vapor deposition (PECVD) technology, which involves introducing process gases such as silane (SiH4), nitrous oxide (N2O), and phosphine (PH3) into a vacuum and high-temperature (approximately 480°C) environment to form a phosphorus-doped polycrystalline silicon layer on the silicon wafer surface.
[0004] In the PE-poly process, a silicon wafer carrier (boat) made of graphite or quartz is used to carry the silicon wafer into the tubular reaction chamber. During deposition, not only are reactants deposited on the silicon wafer surface, but residues are also deposited simultaneously on the carrier surface. These residues affect the uniformity and quality of subsequent deposition, thus reducing the lifespan of the carrier. Utility Model Content
[0005] This application discloses a cleaning device and cleaning system. The air blowing component can blow air onto the surface of the cleaning liquid to direct foreign matter on the liquid surface toward the second sidewall. When the carrier boat is removed, it reduces the amount of foreign matter remaining on the surface of the graphite boat, reduces the high frequency of cleaning the carrier boat production line, increases production capacity, reduces yield loss, improves process stability, and optimizes efficiency.
[0006] To achieve the above objectives, in a first aspect, embodiments of this application disclose a cleaning device for cleaning a vehicle boat, the cleaning device comprising:
[0007] A cleaning tank for holding cleaning fluid and the carrier boat, the cleaning tank including a first sidewall and a second sidewall disposed opposite to each other along a first direction;
[0008] An air blowing assembly is disposed inside the cleaning tank and close to the first side wall. The air blowing assembly can blow air onto the surface of the cleaning liquid, so that the floating objects on the surface of the cleaning liquid flow toward the second side wall.
[0009] As an optional implementation, the air blowing assembly includes an air blowing pipe and an air source. The air blowing pipe is connected to the inner wall of the cleaning tank, and an air blowing hole is provided on the side of the air blowing pipe facing the second side wall. The air source is connected to the air blowing pipe to deliver gas to the air blowing pipe and eject it from the air blowing hole.
[0010] As an optional implementation, the air blowing pipe extends along a second direction, which is perpendicular to the first direction, and the two ends of the air blowing pipe are respectively connected to two opposite sidewalls of the cleaning tank arranged along the second direction.
[0011] As an optional implementation, the cleaning tank further includes a third sidewall and a fourth sidewall disposed opposite to each other along the second direction, the first end of the air blowing pipe passing through the third sidewall, the second end of the air blowing pipe being connected to the inner wall of the fourth sidewall, and the air source being connected to the first end of the air blowing pipe.
[0012] As an optional implementation, there are multiple air holes, which are spaced apart along the second direction on the air pipe and facing the cleaning fluid.
[0013] As an optional implementation, the air blowing hole is positioned facing the surface of the cleaning fluid, and the centerline of the air blowing hole forms an angle with the surface of the cleaning fluid, wherein the angle is an acute angle.
[0014] As an optional implementation, the air source is an air gun.
[0015] As an optional implementation, the cleaning device further includes an overflow port and a filter screen. The overflow port is disposed on the second side wall and is located near the opening of the cleaning tank. The overflow port is used to allow the cleaning liquid to pass through, and the filter screen is detachably disposed on the overflow port.
[0016] As an optional implementation, the air inlet is positioned above the lower edge of the overflow port.
[0017] Secondly, this application discloses a cleaning system, the cleaning system comprising:
[0018] The cleaning apparatus described in any of the first aspects;
[0019] A robotic arm for gripping a vehicle boat to place the vehicle boat into the cleaning tank of the cleaning device or to remove the vehicle boat from the cleaning tank of the cleaning device.
[0020] Compared with the prior art, the beneficial effects of this application are:
[0021] The cleaning apparatus provided in this application includes a cleaning tank and an air blowing assembly. The cleaning tank holds cleaning fluid and a graphite boat. The cleaning tank includes a first sidewall and a second sidewall arranged opposite each other along a first direction. The air blowing assembly is disposed within the cleaning tank and close to the first sidewall. The air blowing assembly blows air onto the surface of the cleaning fluid, causing floating particles on the surface of the cleaning fluid to flow towards the second sidewall. When the graphite boat is removed, this reduces the amount of foreign matter remaining on the surface of the graphite boat, reduces the likelihood of repeated cleaning of the graphite boat, lowers the frequency of cleaning the graphite boat on the production line, allows the graphite boat to be used in production for a longer period, reduces downtime caused by cleaning, improves the overall capacity output of the production line, and increases production efficiency. Reducing foreign matter residue and lowering the cleaning frequency can significantly reduce contact problems and foreign matter contamination caused by foreign matter contamination, helping to improve the overall quality of the product and ensure the efficient operation of the production line. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the cleaning device disclosed in the embodiments of this application;
[0024] Figure 2 This is a schematic diagram of the air blowing pipe disclosed in the embodiments of this application.
[0025] Explanation of reference numerals in the attached figures:
[0026] 100-Cleaning device; 1-Cleaning tank; 11-First sidewall; 11a-Overflow port; 12-Second sidewall; 13-Third sidewall; 14-Fourth sidewall; 2-Blowing assembly; 21-Blowing pipe; 211-Blowing hole; 3-Filter screen; X-First direction; Y-Second direction. Detailed Implementation
[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0028] In this application, the terms "upper," "lower," "front," "bottom," "inner," "outer," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.
[0029] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.
[0030] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.
[0031] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.
[0032] The field of solar cell technology mainly involves the technology of converting solar energy into electrical energy, which is the core of photovoltaic power generation. Tunnel Oxide Passivated Contact (TOPCon) cells are a high-efficiency solar cell technology that is based on the selective carrier principle and employs a tunneling oxide passivated contact structure.
[0033] Plasma-enhanced polymer deposition (PE-POL) is a key process in TOPCon photovoltaic cell production, primarily used to deposit multilayer composite films such as tunneling layers, polycrystalline silicon layers, and doped layers on the silicon wafer surface. This process is based on plasma-enhanced chemical vapor deposition (PECVD) technology, which involves introducing process gases such as silane (SiH4), nitrous oxide (N2O), and phosphine (PH3) into a vacuum, high-temperature (approximately 480°C) environment to form a phosphorus-doped polycrystalline silicon layer on the silicon wafer surface.
[0034] In the PE-poly process, a silicon wafer carrier (boat) made of graphite or quartz is used to carry the silicon wafer into the tubular reaction chamber. During deposition, not only are reactants deposited on the silicon wafer surface, but residues are also deposited simultaneously on the carrier surface. These residues affect the uniformity and quality of subsequent deposition, thus reducing the lifespan of the carrier.
[0035] When the carrier boat reaches the end of its service life, it will be taken offline for cleaning. Tank cleaning is an essential step. The cleaning process involves chemically reacting with the residual deposits on the surface of the carrier to dissolve them. Then, the concentration of the chemical solution is diluted through multiple water tanks to achieve a thorough cleaning of the carrier. After the carrier is coated with a protective film, it can be put into production for wafer loading. The cleaning process sets the lifespan of the silicon wafer carrier to zero, ensuring that it can operate normally within its lifespan and guaranteeing the efficiency and yield of the cell production line.
[0036] After the carrier boat is cleaned, impurities from the reaction will float on the surface of the cleaning fluid in the cleaning tank. When the carrier boat is removed from the cleaning fluid, these impurities will adhere to it. In large-scale production workshops, if the carrier boat cleaning effect is substandard, frequent contact defects and foreign matter will occur, often resulting in a large number of defective wafers and isolation wafers. This not only significantly reduces efficiency and first-pass yield but also lowers production output due to the high frequency of these issues, becoming a bottleneck. The boat is also repeatedly cleaned after it leaves the production line, and premature removal before reaching its designed lifespan will also result in wasted chemical usage and significant labor costs.
[0037] Based on this, this application discloses a cleaning device in which an air blowing component can blow air onto the surface of the cleaning fluid to direct foreign matter from the surface of the fluid to the second sidewall. When the carrier boat is removed, this reduces the amount of foreign matter remaining on the surface of the carrier boat, reduces the high frequency of cleaning the carrier boat production line, increases production capacity, reduces yield loss, improves process stability, and optimizes efficiency.
[0038] The technical solution of this application will be further described below with reference to the embodiments and accompanying drawings.
[0039] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of the cleaning apparatus 100 disclosed in an embodiment of this application. This application discloses a cleaning apparatus 100, which includes:
[0040] Cleaning tank 1 is used to hold cleaning fluid and a carrier boat. Cleaning tank 1 includes a first sidewall 11 and a second sidewall 12 that are arranged opposite to each other along a first direction X.
[0041] Air blowing assembly 2 is disposed in the cleaning tank 1 and close to the first side wall 11. Air blowing assembly 2 can blow air onto the surface of the cleaning liquid so that the floating liquid on the surface of the cleaning liquid flows toward the second side wall 12.
[0042] In this way, since all floating debris flows to one side of the cleaning tank 1, fewer foreign objects remain on the surface of the carrier boat when it is removed, reducing the likelihood of repeated cleaning and lowering the frequency of carrier boat cleaning on the production line. This allows the carrier boat to be used in production for longer periods, reducing downtime caused by cleaning, increasing the overall production line capacity, and improving production efficiency. Reducing foreign object residue and lowering the cleaning frequency significantly reduces contact problems and foreign object contamination issues, contributing to improved overall product quality and ensuring efficient production line operation.
[0043] The air blowing assembly 2, through air blowing, can guide foreign objects to the second sidewall 12 more quickly, reducing the residence time of foreign objects in the cleaning fluid. This not only improves cleaning efficiency but also reduces the frequency of cleaning fluid replacement. By reducing cleaning frequency and improving cleaning effect, the amount of chemicals used and manpower required in the cleaning process can be reduced. This not only lowers production costs but also improves overall production efficiency.
[0044] As an optional implementation method, see [link / reference]. Figure 2 , Figure 2 This is a schematic diagram of the structure of the air blowing pipe 21 disclosed in the embodiment of this application. The air blowing assembly 2 includes an air blowing pipe 21 and an air source. The air blowing pipe 21 is connected to the inner wall of the cleaning tank 1. An air blowing hole 211 is provided on the side of the air blowing pipe 21 facing the second side wall 12. The air source is connected to the air blowing pipe 21 to deliver gas to the air blowing pipe 21 and spray it out from the air blowing hole 211.
[0045] The directional setting of the air vent 211 ensures that the airflow directly acts on the surface of the cleaning fluid, effectively blowing foreign objects (such as residual sediments, impurities, etc.) on the surface of the fluid towards the second sidewall 12. This reduces the residue of foreign objects on the surface of the vehicle boat and reduces secondary contamination of the vehicle boat by foreign objects. This makes the cleaning more thorough and ensures the performance of the vehicle boat in subsequent use.
[0046] The air source provides a stable gas supply to the air blowing pipe 21, ensuring that the air blowing assembly 2 can work continuously and effectively. A stable air supply can avoid unstable cleaning results caused by air pressure fluctuations. In addition, the connection between the air blowing pipe 21 and the inner wall of the cleaning tank 1 ensures the stability of the air blowing pipe 21 during the cleaning process, preventing the air blowing pipe 21 from shifting or loosening due to airflow impact. The stable connection ensures that the air blowing hole 211 can continuously and accurately blow air onto the liquid surface, improving the reliability of the cleaning effect.
[0047] In some possible implementations, combined Figure 1The air blowing pipe 21 extends along the second direction Y, which is perpendicular to the first direction X. The two ends of the air blowing pipe 21 are respectively connected to two opposite side walls of the cleaning tank 1 along the second direction Y.
[0048] In this way, the air blowing pipe 21 extends along the second direction Y, providing sufficient space for the air blowing holes 211 to be set along the second direction Y, ensuring that the air blowing pipe 21 can evenly blow air onto the surface of the cleaning fluid, thereby achieving uniform blowing away of foreign objects on the surface of the fluid. This evenly distributed air blowing hole 211 design can more effectively guide foreign objects to the second sidewall 12, reducing the residue of foreign objects on the surface of the carrier boat.
[0049] The air blowing pipe 21 extends in the second direction Y and blows air onto the liquid surface to move foreign objects along the first direction X. The blowing range can cover the entire liquid surface as much as possible, further reducing dead corners on the cleaning liquid surface and ensuring that foreign objects on the entire liquid surface can be more effectively blown toward the second sidewall 12, thus improving the thoroughness of cleaning.
[0050] In some embodiments, combined with Figure 1 The cleaning tank 1 also includes a third sidewall 13 and a fourth sidewall 14 arranged opposite each other along the second direction Y. The first end of the air blowing pipe 21 passes through the third sidewall 13, the second end of the air blowing pipe 21 is connected to the inner wall of the fourth sidewall 14, and the air source is connected to the first end of the air blowing pipe 21.
[0051] The air source is connected to the air blowing pipe 21 via a fixed point at one end. This ensures the stability of the air blowing pipe 21 structure while continuously supplying gas, making the connection between the air source and the air blowing pipe 21 more convenient. Connecting the air source to the first end of the air blowing pipe 21 from outside the cleaning tank 1 eliminates the need for complex installation inside the cleaning tank 1, reducing installation difficulty, improving equipment installation efficiency, and facilitating maintenance and replacement in case of air source problems. The gas delivered by the air source can enter the air blowing pipe 21 more directly and smoothly, ensuring a stable and sufficient gas supply to the air blowing pipe 21. This, in turn, ensures that the air blowing assembly 2 can continuously and effectively blow air onto the surface of the cleaning liquid, allowing floating matter on the surface of the cleaning liquid to flow smoothly to the second sidewall 12.
[0052] Furthermore, one end of the air blowing pipe 21 passes through the third side wall 13, and the other end is connected to the fourth side wall 14, thus fixing the air blowing pipe 21 at two points within the cleaning tank 1. Compared to fixing it at only one end or simply placing it within the cleaning tank 1, this method better maintains the stability of the air blowing pipe 21's position. The air blowing pipe 21 will not sway or shift due to gas pressure or the flow of cleaning fluid, ensuring that the position of the air blowing hole 211 is relatively fixed. This allows the blown gas to accurately act on a specific position on the surface of the cleaning fluid, improving the accuracy and stability of guiding floating objects and better fulfilling the function of guiding floating objects to the second side wall 12.
[0053] Optionally, combined Figure 1 and Figure 2 There are multiple air holes 211, which are spaced apart along the second direction Y and are directed towards the cleaning fluid through the air pipe 21.
[0054] Specifically, multiple air holes 211 are set at equal intervals.
[0055] In this way, multiple air holes 211 evenly arranged along the second direction Y can blow air evenly onto the surface of the cleaning fluid along the length of the air pipe 21, so that each position on the surface of the cleaning fluid can be subjected to a relatively uniform gas force. This allows the floating objects on the surface of the fluid to move relatively evenly toward the second sidewall 12 along the width of the entire cleaning tank 1, avoiding the situation where floating objects accumulate in some areas and are not thoroughly cleaned in other areas. This more effectively guides the floating objects to the second sidewall 12, improves the cleaning effect on the surface of the cleaning fluid, and further reduces the possibility of foreign objects remaining on the surface of the carrier boat.
[0056] The evenly distributed air holes 211 can simultaneously act on a large area of the cleaning fluid surface, accelerating the flow and disturbance of the cleaning fluid surface, causing floating objects to move towards the second sidewall 12 more quickly, which helps to complete the cleaning of floating objects on the cleaning fluid surface in a shorter time, thereby improving the efficiency of the entire vehicle boat cleaning process.
[0057] In addition, the even arrangement of multiple air holes 211 allows gas to be discharged evenly from the side wall of the air pipe 21, making the gas pressure distribution in the air pipe 21 more uniform. This reduces the problems of deformation and damage to the air pipe 21 that may be caused by excessively high or low local pressure, helps to extend the service life of the air pipe 21 and the entire air assembly 2, enhances the stability and reliability of the cleaning device 100, reduces the frequency of maintenance or replacement due to failure of the air assembly 2, and ensures that the cleaning device 100 can operate continuously and stably. This is conducive to improving the overall stability and production capacity output of the carrier boat cleaning production line.
[0058] In some possible implementations, the air blowing hole 211 is positioned facing the surface of the cleaning fluid, and the centerline of the air blowing hole 211 forms an angle with the surface of the cleaning fluid, the angle being an acute angle.
[0059] When the air inlet 211 faces the cleaning fluid surface and its centerline forms an acute angle with the surface, the blown gas acts on the cleaning fluid surface at a certain angle. Compared to blowing air perpendicular to the surface, this angled blowing method allows the gas to generate a larger horizontal component force on the surface, thus more effectively propelling floating objects on the cleaning fluid surface toward the second sidewall 12. Compared to blowing air horizontally onto the surface, this angled blowing method allows the gas to generate a larger vertical component force on the surface, thus applying a greater blowing force to the surface, enabling foreign objects to be blown more thoroughly toward the second sidewall 12. The gas can also make more full contact with the cleaning fluid surface, forming a more obvious surface flow, improving the ability to move and guide floating objects, and more efficiently driving floating objects toward the second sidewall 12, further reducing the possibility of foreign objects remaining on the surface of the carrier boat and improving the cleaning effect.
[0060] As an optional implementation method, the air source is an air gun.
[0061] Air guns typically have triggers and other operating components, allowing operators to precisely control the amount and frequency of gas ejection by pressing the trigger with their fingers. When cleaning a vehicle boat, the blowing force and duration can be flexibly adjusted based on the actual amount of floating debris on the cleaning fluid surface. For example, when there is a large amount of concentrated floating debris, increasing the airflow from the air gun quickly blows the debris towards the second sidewall 12; when there is a small amount of scattered floating debris, appropriately reducing the airflow precisely cleans the dispersed debris, effectively improving the controllability of the cleaning process.
[0062] Air guns are a common tool with relatively low purchase costs. Compared to some complex, integrated air source devices, using an air gun as the air source can effectively reduce the overall manufacturing cost of the cleaning device 100.
[0063] The air gun has a relatively simple structure, and its internal structure and working principle are easy to understand and master. When the air gun malfunctions, maintenance personnel can quickly troubleshoot and repair it. Moreover, the parts for the air gun are highly interchangeable and readily available on the market, resulting in low maintenance costs. In addition, daily maintenance is also convenient; only regular simple cleaning and lubrication are required to ensure the normal operation of the air gun, reducing downtime caused by air source equipment failures and improving equipment efficiency.
[0064] Air guns typically use compressed air as a power source. Compared to some air-powered devices that use electricity or other high-energy sources, compressed air eliminates the safety hazards of electrical short circuits and leakage during use, and does not generate high temperatures or open flames that could lead to fires or explosions. This significantly reduces safety risks and ensures the safety of operators and equipment when using air guns as a gas source during the cleaning of the carrier boat, especially when the cleaning fluid may be corrosive or flammable. The gas pressure output of the air gun is relatively stable and easy to adjust, generally avoiding sudden pressure spikes or drops. This stable and controllable pressure output prevents damage to the cleaning tank 1, air pipe 21, and carrier boat caused by abnormal gas pressure, further improving the safety and stability of the cleaning device 100 during operation.
[0065] Optionally, combined Figure 1 The cleaning device 100 also includes an overflow port 11a and a filter screen 3. The overflow port 11a is disposed on the second side wall 12 and is located near the opening of the cleaning tank 1. The overflow port 11a is used to allow cleaning fluid to pass through. The filter screen 3 is detachably disposed on the overflow port 11a.
[0066] The overflow port 11a ensures that the cleaning fluid level is always flush with the lower edge of the overflow port 11a. When the air blowing assembly 2 blows floating debris on the surface of the cleaning fluid toward the second sidewall 12, the floating debris flows with the cleaning fluid toward the overflow port 11a. Due to the presence of the overflow port 11a, the cleaning fluid can continuously flow out of the cleaning tank 1 through the overflow port 11a, thereby carrying away the floating debris and preventing its accumulation in the cleaning tank 1. This further reduces the possibility of floating debris re-attaching to the surface of the vehicle boat, improving the cleaning effect. The air blowing assembly 2 directs the floating debris toward the second sidewall 12, and the position design of the overflow port 11a, in conjunction with the function of the air blowing assembly 2, can accurately collect some of the blown-over floating debris.
[0067] The filter screen 3 is detachably installed at the overflow port 11a. It can intercept floating debris, preventing it from entering the subsequent liquid treatment system or being discharged into the environment. For some floating debris containing harmful substances or impurities, direct discharge into the environment will cause pollution; if it enters the subsequent treatment system, it may affect the treatment effect and equipment life. The use of filter screen 3 protects the operating environment and subsequent equipment.
[0068] After a certain amount of floating debris is intercepted by filter screen 3, the operator can easily remove filter screen 3 from overflow port 11a for cleaning or replacement. Compared to non-removable filter screen 3, this design greatly reduces maintenance time and workload, improving the maintainability of the equipment. Timely cleaning or replacement of filter screen 3 ensures that it maintains good filtration performance, allowing overflow port 11a to continuously and effectively discharge cleaning fluid and floating debris. This helps maintain the normal operation of the cleaning device 100, reduces equipment failures and downtime caused by filter screen 3 clogging, and improves production efficiency.
[0069] In some embodiments, the air blowing hole 211 is positioned above the lower edge of the overflow port 11a, that is, in the vertical direction, the distance from the lower edge of the air blowing hole 211 to the bottom of the tank is higher than the distance from the lower edge of the overflow port 11a to the bottom of the tank.
[0070] If the air blowing hole 211 is lower than the lower edge of the overflow port 11a, the cleaning fluid may backflow into the air blowing pipe 21 through the air blowing hole 211. This will cause water accumulation inside the air blowing pipe 21, affecting the normal delivery and blowing effect of the gas, and may even damage the air source equipment (such as the air gun). The cleaning fluid may contain some impurities and particles. If the cleaning fluid backflows into the air blowing pipe 21, these impurities and particles may adhere to the air blowing hole 211, causing the air blowing hole 211 to become blocked. Blockage of the air blowing hole 211 will hinder the smooth ejection of gas, affecting the blowing effect on the floating objects on the surface of the cleaning fluid and reducing the cleaning efficiency. Setting the air blowing hole 211 higher than the lower edge of the overflow port 11a can effectively prevent this blockage from occurring, ensuring that the air blowing hole 211 is always unobstructed and maintaining the normal function of the air blowing assembly 2.
[0071] Secondly, this application also discloses a cleaning system, comprising:
[0072] The cleaning device 100 as described in any of the first aspects above;
[0073] A robotic arm is used to grip the vehicle boat to place it into the cleaning tank 1 of the cleaning device 100 or to remove the vehicle boat from the cleaning tank 1 of the cleaning device 100.
[0074] The robotic arm places the vehicle boat into the cleaning tank 1 containing cleaning fluid. After the cleaning fluid has had sufficient time to react with the impurities on the vehicle boat, floating objects are generated on the surface of the cleaning fluid. The air blowing component 2 continuously blows the floating objects toward the second side wall 12. Some of the floating objects are intercepted by the filter screen 3. Then the robotic arm removes the vehicle boat from the cleaning fluid, which improves the cleaning effect and can better ensure the cleanliness of the surface of the vehicle boat.
[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A cleaning device for cleaning a vehicle boat, characterized in that, include: A cleaning tank for holding cleaning fluid and the carrier boat, the cleaning tank including a first sidewall and a second sidewall disposed opposite to each other along a first direction; An air blowing assembly is disposed in the cleaning tank and close to the first side wall. The air blowing assembly can blow air onto the surface of the cleaning liquid so that the floating objects on the surface of the cleaning liquid flow toward the second side wall. The air blowing assembly includes an air blowing pipe and an air source. The air blowing pipe is connected to the inner wall of the cleaning tank. An air blowing hole is provided on the side of the air blowing pipe facing the second side wall. The air source is connected to the air blowing pipe to deliver gas to the air blowing pipe and eject it from the air blowing hole.
2. The cleaning device according to claim 1, characterized in that, The air blowing pipe extends along a second direction, which is perpendicular to the first direction, and the two ends of the air blowing pipe are respectively connected to two opposite side walls of the cleaning tank arranged along the second direction.
3. The cleaning device according to claim 2, characterized in that, The cleaning tank also includes a third sidewall and a fourth sidewall arranged opposite to each other along the second direction. The first end of the air blowing pipe passes through the third sidewall, the second end of the air blowing pipe is connected to the inner wall of the fourth sidewall, and the air source is connected to the first end of the air blowing pipe.
4. The cleaning device according to claim 2, characterized in that, The air blowing holes are multiple and are spaced apart along the second direction on the air blowing pipe and facing the cleaning liquid.
5. The cleaning device according to claim 1, characterized in that, The air blowing hole is positioned towards the surface of the cleaning liquid, and the centerline of the air blowing hole forms an angle with the surface of the cleaning liquid, wherein the angle is an acute angle.
6. The cleaning apparatus according to claim 1, characterized in that, The air source is an air gun.
7. The cleaning device according to claim 1, characterized in that, The cleaning device further includes an overflow port and a filter screen. The overflow port is disposed on the second side wall and is located near the opening of the cleaning tank. The overflow port is used to allow the cleaning liquid to pass through. The filter screen is detachably disposed on the overflow port.
8. The cleaning apparatus according to claim 7, characterized in that, The air blowing hole is positioned above the lower edge of the overflow port.
9. A cleaning system, characterized in that, include: The cleaning apparatus as described in any one of claims 1-8; A robotic arm for gripping a vehicle boat to place the vehicle boat into the cleaning tank of the cleaning device or to remove the vehicle boat from the cleaning tank of the cleaning device.