Cleaning device

Abstract

The utility model discloses a cleaning device, and relates to the field of photovoltaic technology. Reaction residues in the reaction liquid are filtered through the filtering part, so that the service life of the reaction liquid is prolonged, the manufacturing cost of the photovoltaic cell is reduced, and mass production of the photovoltaic cell is facilitated. The cleaning device is used for cleaning a to-be-removed object formed on a photovoltaic cell. The cleaning device comprises a first containing groove, a filtering part and a lifting part. The first containing groove is used for containing reaction liquid. The filtering part is arranged in the first containing groove. The lifting part is connected with the filtering part and is used for adjusting the height of the filtering part in the first accommodating groove, so that reaction residues in the reaction liquid are filtered through the filtering part.

Description

Technical Field

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

[0002] In the process of manufacturing photovoltaic cells, it is usually necessary to use a cleaning device to clean the objects to be removed formed on the photovoltaic cells. Take the case where the objects to be removed are colloids such as masking glue with a masking effect or etching glue with a corrosive effect as an example: under the masking effect of the masking glue, after the corresponding film layer is patterned or selectively doped, the masking glue needs to be removed by a cleaning device. Alternatively, after the corresponding film layer is selectively etched by the etching glue with a pattern, the etching glue needs to be removed by a cleaning device.

[0003] However, after cleaning the photovoltaic cells, reaction residues often remain in the reaction liquid of the cleaning device, which affects the service life of the reaction liquid, resulting in high production costs of photovoltaic cells and difficulty in achieving mass production. Utility Model Content

[0004] The utility model aims to provide a cleaning device, which can filter the reaction residues in the reaction liquid through the filtering part, prolong the service life of the reaction liquid, reduce the manufacturing cost of the photovoltaic cell, and facilitate the mass production of the photovoltaic cell.

[0005] The utility model provides a cleaning device. The cleaning device is used to clean the to-be-removed objects formed on the photovoltaic cell. The cleaning device comprises: a first receiving tank, a filter part and a lifting part. The first receiving tank is used to hold the reaction liquid. The filter part is arranged in the first receiving tank. The lifting part is connected to the filter part and is used to adjust the height of the filter part in the first receiving tank so as to filter the reaction residues in the reaction liquid through the filter part.

[0006] When the above technical solution is adopted, the first receiving tank is used to hold the reaction liquid, and the reaction liquid can remove the objects to be removed formed on the photovoltaic cell. After cleaning, there are reaction residues in the reaction liquid. In the above case, the cleaning device provided by the utility model also includes a filter part, and a lifting part connected to the filter part; the filter part has a filtering function, and the lifting part can adjust the height of the filter part in the first receiving tank. Based on this, in the actual application process, before cleaning, the filter part can be adjusted to a position close to the bottom of the first receiving tank by the lifting part, so that the photovoltaic cell is located above the filter part in the subsequent cleaning process, so that the reaction residues remaining in the reaction liquid after the photovoltaic cell is cleaned are also located above the filter part. After a single cleaning or multiple cleanings, if the reaction residues in the reaction liquid reach a certain amount, the filter part can be raised to the notch of the first holding tank by the lifting part. At this time, the reaction residues in the reaction liquid held in the first holding tank will rise to the notch and be located on the filter part under the filtering action of the filter part. At this time, the reaction residues on the filter part can be removed manually or by other cleaning components, thereby realizing the filtration of the reaction residues in the reaction liquid by the filter part, preventing the subsequent cleaning effect and cleaning efficiency from being affected by the presence of a large amount of reaction residues in the reaction liquid, and extending the service life of the reaction liquid (roughly increasing the number of uses of the reaction liquid from the original 10 times to more than 50 times), thereby reducing the manufacturing cost of photovoltaic cells, and facilitating the mass production of photovoltaic cells.

[0007] In a possible implementation, the filter unit includes a filter net.

[0008] When the above technical solution is adopted, the structure of the filter is relatively simple, which can reduce the structural complexity of the cleaning device and reduce the manufacturing cost of the cleaning device. In addition, the filtering principle of the filter is also relatively simple, and it can filter out the reaction residues whose size is larger than its own filter space size, preventing the filter part from being set in the first receiving tank and filtering the reaction residues through the filter part to affect the chemical or physical properties of the reaction liquid, ensuring that the reaction liquid can clean the objects to be removed formed on the photovoltaic cell, and further ensuring that the reaction liquid has a long service life.

[0009] In a possible implementation, the filter unit includes a polytetrafluoroethylene filter unit; and / or the filter unit includes an activated carbon filter unit.

[0010] In the case of adopting the above technical solution, the polytetrafluoroethylene filter part and the activated carbon filter part have adsorptivity, so when the filter part includes the polytetrafluoroethylene filter part and / or the activated carbon filter part, the filter part can effectively adsorb the reaction residues in the reaction liquid, enhance the filtering effect of the filter part, and further extend the service life of the reaction liquid. In addition, the polytetrafluoroethylene filter part and the activated carbon filter part have good plasticity, so when the filter part includes the polytetrafluoroethylene filter part and / or the activated carbon filter part, it can prevent the filter part from deforming when it moves along the height direction of the first receiving tank driven by the lifting part, while improving the structural reliability of the filter part, it can also ensure that the reaction residues in each area of ​​the first receiving tank can be filtered out by the filter part whose morphology meets the working requirements, further ensuring that the filter part has a higher filtering effect. Furthermore, the polytetrafluoroethylene filter portion and the activated carbon filter portion have high acid and alkali resistance. Therefore, when the filter portion includes the polytetrafluoroethylene filter portion and / or the activated carbon filter portion, it can also prevent the filter portion placed in the reaction liquid from changing its morphology due to chemical reactions, thereby ensuring that the filter portion has a high filtering effect. At the same time, it can also improve the scope of application of the cleaning device provided by the utility model, that is, it can be used not only to filter reaction residues in acidic solutions, but also to filter reaction residues in alkaline solutions.

[0011] In a possible implementation, the lifting part includes: a first driving member, a first transmission member driven by the first driving member, and a first actuator driven by the first transmission member and reciprocating linearly moving along the direction from the bottom of the first receiving groove to the groove opening. The first actuator is connected to the filter part.

[0012] When the above technical solution is adopted, the first driving member serves as a power source to drive the first transmission member. In addition, the first actuator included in the lifting part is driven by the first transmission member and performs reciprocating linear motion in the direction from the bottom of the first receiving tank to the notch. Based on this, when the first actuator is connected to the filter part, the filter part will also be driven to perform corresponding motion during the movement of the first actuator, so that the filter part is roughly at the bottom of the first receiving tank before cleaning the photovoltaic cell; and the filter part moves in the direction from the bottom of the first receiving tank to the notch after a single or multiple cleanings to complete the filtration of the reaction residues, thereby preventing the existence of the reaction residues from affecting the service life of the reaction liquid, and at the same time will not hinder the cleaning of the photovoltaic cell.

[0013] In a possible implementation, the first driving member is a motor.

[0014] When the above technical solution is adopted, compared with the cylinder, the motor has the advantages of small size and light weight, which is conducive to the miniaturization of the lifting part and prevents the normal cleaning of the photovoltaic cell from being affected by the existence of the lifting part. In addition, the control accuracy and safety of the motor are higher, which is conducive to accurately adjusting the position of the filter part in the first receiving tank through the lifting part, improving the filtering effect, and preventing the cleaning effect of the photovoltaic module from being affected by the inappropriate position of the filter part in the first receiving tank.

[0015] In a possible implementation, the first transmission member is a screw rod. The first actuator is a mounting seat, the mounting seat is provided with a threaded hole, and the mounting seat is screwed onto the screw rod through the threaded hole.

[0016] When the above technical solution is adopted, the height of the filter part in the first receiving tank can be adjusted based on the screw transmission method, which is beneficial to improve the accuracy of the lifting part in controlling the height of the filter part, and is also beneficial to the smooth movement of the filter part during the lifting process, preventing smaller reaction residues on the filter part from leaking to the bottom of the first receiving tank during the shaking process, thereby ensuring that the filter part has a good filtering effect.

[0017] In a possible implementation, the cleaning device further includes: a cleaning part and a moving part. The cleaning part is disposed at the notch of the first receiving tank. The moving part is connected to the cleaning part, and is used to move the cleaning part from one side to the other side in the length or width direction of the first receiving tank after the filter part rises to the notch of the first receiving tank, so as to remove the reaction residues on the filter part.

[0018] When the above technical solution is adopted, after the filter part rises to the slot of the first containing tank, the cleaning part included in the cleaning device can be moved from one side of the length or width direction of the first containing tank to the other side under the drive of the moving part, so as to realize the automated removal of the reaction residues on the filter part while ensuring that the reaction residues on various areas of the filter part along the length or width direction of the first containing tank are completely removed by the cleaning part, thereby preventing some reaction residues from still existing in the reaction liquid after the filter part returns to the first containing tank, thereby improving the filtering effect.

[0019] In a possible implementation, the cleaning part is a scraper.

[0020] When the above technical solution is adopted, the structure of the scraper is relatively simple, which can reduce the structural complexity of the cleaning device and reduce the manufacturing cost of the cleaning device.

[0021] In a possible implementation, the moving part includes: a second driving member, a second transmission member driven by the second driving member, and a second actuator driven by the second transmission member and reciprocating linearly moving along the length or width direction of the first receiving groove. The second actuator is connected to the cleaning part. The beneficial effects in this case are similar to the beneficial effects of the lifting part including the first actuator, the first transmission member and the first actuator as described above, and will not be repeated here.

[0022] In a possible implementation, the cleaning device further includes a second receiving tank. The first receiving tank is located inside the second receiving tank. In addition, along the moving direction of the cleaning portion, there is a receiving space between the side wall of the second receiving tank and the side wall of the first receiving tank for receiving the reaction residues removed from the filter portion.

[0023] In the case of adopting the above technical solution, the cleaning device further includes a second containing tank disposed outside the first containing tank, and along the moving direction of the cleaning unit, there is a containing space between the side wall of the second containing tank and the side wall of the first containing tank. In this case, the cleaning unit can clean the reaction residues on the filter unit into the containing space, thereby preventing the reaction residues and the reaction liquid remaining on the reaction residues from polluting the manufacturing environment and improving work safety.

[0024] In a possible implementation, a cleaning window is provided on the side wall of the storage space corresponding to the second storage tank. In this case, the reaction residues in the storage space can be removed through the cleaning window to prevent the reaction residues from accumulating in the storage space. In addition, the cleaning window is provided on the side wall of the storage space corresponding to the second storage tank, and its height is less than the height of the notch of the first storage tank, so as to prevent the reaction residues from falling back into the reaction liquid when the reaction residues are taken out of the storage space, and to prevent the operation of taking out the reaction residues from interfering with the cleaning operation of the photovoltaic cell.

[0025] In a possible implementation, the cleaning device further comprises a carrying portion disposed at the bottom of the accommodation space for carrying the reaction residues. In this case, all the reaction residues on the carrying portion can be removed by removing the carrying portion, thereby reducing the difficulty of removing the reaction residues from the accommodation space.

[0026] In a possible implementation, the cleaning device further includes a cleaning portion disposed in the accommodation space, for cleaning the reaction residues in the accommodation space to remove the reaction liquid on the reaction residues. In addition, a drain port is provided at the bottom of the second accommodation tank for discharging the cleaning liquid and the reaction liquid.

[0027] When the above technical solution is adopted, before removing the reaction residues, the reaction residues can be cleaned by the cleaning part to prevent the reaction liquid remaining on the reaction residues from polluting the manufacturing environment, and at the same time prevent the residual reaction liquid from causing damage to the device or staff removing the reaction residues, thereby improving work safety. In addition, the cleaning part is located in the accommodating space, and the accommodating space is located outside the first accommodating tank. Therefore, cleaning the reaction residues by the cleaning part will not affect the cleaning of the photovoltaic cell by the reaction liquid in the first accommodating tank, that is, the cleaning of the cleaning part and the use of the first accommodating tank can be carried out simultaneously, thereby improving the working efficiency of the cleaning device.

[0028] In a possible implementation, a cover is provided at the notch of the second receiving tank. In this case, since the first receiving tank is located inside the second receiving tank, when the cover is provided at the notch of the second receiving tank, the first receiving tank can be placed in a relatively closed environment when the cover is closed. Therefore, the presence of the cover can prevent the volatiles generated by the reaction in the first receiving tank from evaporating to the external environment in large quantities when the photovoltaic cell is cleaned, thereby preventing the external environment from being polluted. At the same time, it can also reduce pollutants such as particles in the environment from falling into the first receiving tank, preventing the reaction liquid from being polluted, and further extending the service life of the reaction liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0030] Figure 1 A schematic diagram of the structure of the cleaning device provided in the embodiment of the utility model Figure 1 ;

[0031] Figure 2 A schematic diagram of the structure of the cleaning device provided in the embodiment of the utility model Figure 2 .

[0032] Figure numerals: 11 is the first containing tank, 12 is the filtering part, 13 is the lifting part, 14 is the cleaning part, 15 is the moving part, 16 is the second containing tank, 17 is the containing space, 18 is the cleaning window, 19 is the bearing part, 20 is the cleaning part, 21 is the sewage outlet, and 22 is the cover body. DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0034] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. The meaning of "several" is one or more, unless otherwise clearly and specifically defined.

[0036] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0037] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0038] In the process of manufacturing photovoltaic cells, it is usually necessary to use a cleaning device to clean the objects to be removed formed on the photovoltaic cells. However, after cleaning the photovoltaic cells, reaction residues often remain in the reaction liquid of the cleaning device. In the mass production process, as the number of photovoltaic cells cleaned increases, the amount of reaction residues remaining in the reaction liquid will also increase, thereby affecting the cleaning effect and cleaning efficiency, and further affecting the service life of the reaction liquid, resulting in high production costs of photovoltaic cells and difficulty in achieving mass production.

[0039] Take the above-mentioned object to be removed as a mask glue with a masking effect or a colloid such as a corrosive glue with a corrosive effect as an example for explanation: in the process of patterning the mask glue material set in the whole layer, it is necessary to remove the part of the mask glue material corresponding to the mask pattern; under the masking effect of the mask glue, after the corresponding film layer is patterned or selectively doped, the mask glue needs to be removed. In addition, after the selective etching treatment of the corresponding film layer is achieved by the corrosive glue with a pattern, the corrosive glue needs to be removed. In the process of removing the mask glue or the colloid to be removed, the colloidal particles will remain in the reaction liquid, affecting the service life of the reaction liquid. Although, those skilled in the art have developed other ways to form mask glue or replace corrosive glue. For example: using 3D printing technology to directly form a patterned mask glue, or using a laser etching process to directly pattern the corresponding film layer. However, the cost of the above-mentioned 3D printing technology is high, and the plastic material used is difficult to clean; and the mask of the flexible material used by the 3D printing technology that is easy to remove has poor protection, and the pattern is difficult to control, which is not conducive to improving the manufacturing accuracy. The high energy of the laser etching process can easily damage the semiconductor substrate and the surface passivation layer, affecting the yield of the photovoltaic cell. In the above case, after cleaning the photovoltaic cell, the reaction liquid of the cleaning device has reaction residues, which reduces the service life of the reaction liquid and becomes a technical problem that needs to be solved urgently.

[0040] In order to solve the above technical problems, the embodiment of the utility model provides a cleaning device. The cleaning device is used to clean the objects to be removed formed on the photovoltaic cell. Figure 1 and Figure 2 As shown, the cleaning device includes: a first holding tank 11, a filter unit 12 and a lifting unit 13. The first holding tank 11 is used to hold the reaction liquid. The filter unit 12 is arranged in the first holding tank 11. The lifting unit 13 is connected to the filter unit 12 and is used to adjust the height of the filter unit 12 in the first holding tank 11 so as to filter the reaction residues in the reaction liquid through the filter unit 12.

[0041] In the actual work process, Figure 1 and Figure 2As shown, the first receiving tank 11 included in the cleaning device is used to hold the reaction liquid, and the reaction liquid can remove the to-be-removed objects formed on the photovoltaic cell. After the photovoltaic cell is cleaned, there will be reaction residues in the reaction liquid. In the above case, the cleaning device provided by the embodiment of the utility model also includes a filter part 12, and a lifting part 13 connected to the filter part 12; the filter part 12 has a filtering function, and the lifting part 13 can adjust the height of the filter part 12 in the first receiving tank 11. Based on this, before cleaning the photovoltaic cell, the filter part 12 can be adjusted to a position close to the bottom of the first receiving tank 11 by the lifting part 13, so that the photovoltaic cell is located above the filter part 12 in the subsequent cleaning process, so that the reaction residues remaining in the reaction liquid after the photovoltaic cell is cleaned are also located above the filter part 12. After a single cleaning or multiple cleanings, if the reaction residues in the reaction liquid reach a certain amount, the filter part 12 can be lifted to the notch of the first containing tank 11 by the lifting part 13. At this time, the reaction residues in the reaction liquid held in the first containing tank will rise to the notch and be located on the filter part under the filtering action of the filter part. At this time, the reaction residues on the filter part can be removed manually or by other cleaning components, thereby filtering the reaction residues in the reaction liquid, preventing the subsequent cleaning effect and cleaning efficiency from being affected by the presence of a large amount of reaction residues in the reaction liquid, and extending the service life of the reaction liquid (roughly increasing the number of uses of the reaction liquid from the original 10 times to more than 50 times), thereby reducing the manufacturing cost of photovoltaic cells and facilitating the mass production of photovoltaic cells.

[0042] In actual application, the embodiment of the utility model does not specifically limit the structure of the photovoltaic cell cleaned by the cleaning device and the type of the object to be removed. For example, the object to be removed may be a colloid object to be removed such as mask glue or etching glue.

[0043] For the above-mentioned first containing tank, the material and morphology of the first containing tank can be determined according to the actual application scenario, as long as it can be applied to the cleaning device provided in the embodiment of the utility model.

[0044] The filter unit may be any component that has a filtering function for the reaction residues. For example, the filter unit may be a filter cloth or a filter mesh made of a woven material, or may be a porous solid such as plain porcelain or glass, as long as it has a filtering function and does not react with the reaction solution or the reaction residues.

[0045] Among them, because the structure of the filter is relatively simple, when the filter part includes the filter, the structural complexity of the cleaning device can be reduced, and the manufacturing cost of the cleaning device can be reduced. In addition, the filtering principle of the filter is also relatively simple, and it can filter out the reaction residues whose size is larger than its own filter space size, preventing the filter part from being set in the first receiving tank and filtering the reaction residues through the filter part to affect the chemical or physical properties of the reaction liquid, ensuring that the reaction liquid can clean the objects to be removed formed on the photovoltaic cell, and further ensuring that the reaction liquid has a long service life.

[0046] As for the material of the filter part, the material of the filter part is often related to its own type. For example: when the filter part is a porous solid, the manufacturing material of the filter part needs to have porous characteristics. In addition, the filter part needs to filter out the reaction residues from the reaction liquid, so the material of the filter part also needs to prevent reaction with the reaction liquid. Based on this, the specific material of the filter part can be determined according to the type of the filter part, the type of reaction liquid, and the actual application scenario.

[0047] Exemplarily, the filter unit may include a polytetrafluoroethylene filter unit and / or an activated carbon filter unit. Specifically, the filter unit may include only a polytetrafluoroethylene filter unit, or only an activated carbon filter unit, or may include both a polytetrafluoroethylene filter unit and an activated carbon filter unit. When the filter unit includes a polytetrafluoroethylene filter unit and an activated carbon filter unit, the types of materials in different regions of the filter unit may be set according to actual needs, and are not specifically limited here.

[0048] In the case of adopting the above technical solution, the polytetrafluoroethylene filter part and the activated carbon filter part have adsorptivity, so when the filter part includes the polytetrafluoroethylene filter part and / or the activated carbon filter part, the filter part can effectively adsorb the reaction residues in the reaction liquid, enhance the filtering effect of the filter part, and further extend the service life of the reaction liquid. In addition, the polytetrafluoroethylene filter part and the activated carbon filter part have good plasticity, so when the filter part includes the polytetrafluoroethylene filter part and / or the activated carbon filter part, it can prevent the filter part from deforming when it moves along the height direction of the first receiving tank driven by the lifting part, while improving the structural reliability of the filter part, it can also ensure that the reaction residues in each area of ​​the first receiving tank can be filtered out by the filter part whose morphology meets the working requirements, further ensuring that the filter part has a higher filtering effect. Furthermore, the polytetrafluoroethylene filter portion and the activated carbon filter portion have high acid and alkali resistance. Therefore, when the filter portion includes a polytetrafluoroethylene filter portion and / or an activated carbon filter portion, it can also prevent the filter portion placed in the reaction liquid from changing its morphology due to chemical reactions, thereby ensuring that the filter portion has a higher filtering effect. At the same time, it can also improve the scope of application of the cleaning device provided in the embodiment of the utility model, that is, it can not only be used to filter reaction residues in acidic solutions, but also can be used to filter reaction residues in alkaline solutions.

[0049] As for the specifications of the filter part, the size of the cross section corresponding to the filter part can be determined according to the type of the filter part, the cross-sectional size of the first receiving tank, and the way in which the lifting part realizes the lifting of the filter part. Specifically, in the case where the filter part includes a filter screen, the size of the cross section of the filter part can be slightly smaller than the cross-sectional size of the first receiving tank, so that the outer wall of the filter part and the inner wall of the first receiving tank have a certain distance to prevent the filter part from scraping the inner wall of the first receiving tank during the lifting process, while reducing the lifting resistance, at least most of the reaction residues in the reaction liquid can be filtered out through the filter part as much as possible. Among them, the embodiment of the utility model does not specifically limit the size of the distance between the outer wall of the filter part and the inner wall of the first receiving tank.

[0050] For the lifting part, the lifting part can be fixedly connected to the filter part by welding or bonding, or can be detachably connected by threaded connection. The lifting part can be any component that can realize the linear reciprocating motion of the filter part along the direction from the bottom of the first receiving groove to the groove opening.

[0051] In one example, the lifting part may include: a first driving member, a first transmission member driven by the first driving member, and a first actuator driven by the first transmission member and reciprocating linear motion in the direction from the bottom of the first receiving tank to the notch. The first actuator is connected to the filter. In this case, the first driving member acts as a power source to drive the first transmission member. In addition, the first actuator included in the lifting part is driven by the first transmission member and reciprocates linear motion in the direction from the bottom of the first receiving tank to the notch. Based on this, when the first actuator is connected to the filter, the filter will also be driven to move accordingly during the movement of the first actuator, so that the filter is roughly at the bottom of the first receiving tank before cleaning the photovoltaic cell; and the filter moves in the direction from the bottom of the first receiving tank to the notch after a single or multiple cleanings, completing the filtration of the reaction residues, preventing the existence of the reaction residues from affecting the service life of the reaction liquid, and at the same time not hindering the cleaning of the photovoltaic cell.

[0052] Specifically, the first driving member may be driven by a motor, pneumatically or hydraulically, etc. The specific type of the first driving member may be determined according to the specific types of the first transmission member and the first actuator, as well as actual application scenarios.

[0053] Exemplarily, the first driving member may be a motor. In this case, compared with the cylinder, the motor has the advantages of small size and light weight, which is conducive to miniaturization of the lifting part and prevents the normal cleaning of the photovoltaic cell from being affected by the existence of the lifting part. In addition, the motor has higher control accuracy and safety, which is conducive to accurately controlling the position of the filter part in the first receiving tank through the lifting part, improving the filtering effect while preventing the cleaning effect of the photovoltaic module from being affected by the inappropriate position of the filter part in the first receiving tank.

[0054] For example, the first transmission member may be a screw rod. The first actuator may be a mounting seat, which is provided with a threaded hole extending therethrough, and the mounting seat is screwed onto the screw rod through the threaded hole. Figure 1 and Figure 2 As shown, the first transmission member is disposed in the first receiving groove 11 and is located on one side of the first receiving groove 11 along the length and / or width. In addition, the embodiment of the utility model does not specifically limit the material of the screw, the morphology and material of the mounting seat, as long as they can be applied to the cleaning device provided in the embodiment of the utility model. Secondly, the mounting seat can be connected to the filter part by bonding, welding or riveting. In this case, if Figure 1 and Figure 2 As shown, the height of the filter part 12 in the first receiving tank 11 can be adjusted based on a screw drive, which is beneficial to improving the accuracy of the height control of the filter part 12 by the lifting part 13, and is also beneficial to the smooth movement of the filter part 12 during the lifting process, preventing smaller reaction residues on the filter part 12 from leaking to the bottom of the first receiving tank 11 during the shaking process, thereby ensuring that the filter part 12 has a good filtering effect.

[0055] In some cases, the lifting part can be a lifting component arranged at the bottom of the first receiving tank, and the lifting component is located on the side of the filter part away from the notch of the first receiving tank. In this case, the first driving member can also be a cylinder or a hydraulic cylinder, the first transmission member can be a piston rod, and the first actuator can be a telescopic column, etc.

[0056] Secondly, in actual application, after the filter part rises to the notch of the first receiving tank, the reaction residue on the filter part can be removed manually. Figure 1 and Figure 2As shown, the cleaning device may further include: a cleaning unit 14 and a moving unit 15. The cleaning unit 14 is disposed at the notch of the first receiving tank 11. The moving unit 15 is connected to the cleaning unit 14, and is used to move the cleaning unit 14 from one side of the length or width direction of the first receiving tank 11 to the other side after the filter 12 is raised to the notch of the first receiving tank 11, so as to remove the reaction residues located on the filter 12. In this case, after the filter 12 is raised to the notch of the first receiving tank 11, the cleaning unit 14 included in the cleaning device can be driven by the moving unit 15 to move from one side of the length or width direction of the first receiving tank 11 to the other side, so as to realize the automatic removal of the reaction residues located on the filter 12, and also ensure that the reaction residues on each area of ​​the filter 12 along the length or width direction of the first receiving tank 11 are completely removed by the cleaning unit 14, so as to prevent the filter 12 from returning to the first receiving tank 11, and the reaction liquid still has some reaction residues, thereby improving the filtering effect.

[0057] The embodiment of the utility model does not specifically limit the structure of the cleaning part, as long as the reaction residues on the filter part can be removed under the drive of the moving part.

[0058] Exemplarily, the cleaning part may be a scraper or a cleaning brush, etc. In this case, the scraper has a relatively simple structure, which can reduce the structural complexity of the cleaning device and reduce the manufacturing cost of the cleaning device.

[0059] As for the above-mentioned moving part, the moving part can be any component that can realize the linear reciprocating motion of the cleaning part along the length or width direction of the first containing groove.

[0060] Exemplarily, the moving part may include: a second driving member, a second transmission member driven by the second driving member, and a second actuator driven by the second transmission member and performing reciprocating linear motion along the length or width direction of the first accommodating groove. The second actuator is connected to the cleaning part. In this case, the specific types of the first driving member, the second transmission member and the second actuator can refer to the specific types of the first driving member, the first transmission member and the first actuator described above, respectively. In addition, the beneficial effects in this case are similar to the beneficial effects of the lifting part including the first actuator, the first transmission member and the first actuator described above, which will not be repeated here.

[0061] In one possible implementation, Figure 1 and Figure 2As shown, the cleaning device may further include a second receiving tank 16. The first receiving tank 11 is located in the second receiving tank 16. In addition, along the moving direction of the cleaning unit 14, there is a receiving space 17 between the side wall of the second receiving tank 16 and the side wall of the first receiving tank 11, which is used to receive the reaction residues removed from the filter unit 12. In this case, the cleaning unit 14 can clean the reaction residues on the filter unit 12 into the receiving space 17, thereby preventing the reaction residues and the reaction liquid remaining on the reaction residues from polluting the manufacturing environment and improving work safety.

[0062] Specifically, there may be a storage space only between the side wall of the second storage tank on one side along the moving direction of the cleaning unit and the side wall of the first storage tank; in this case, after the reaction residues on the filter unit are cleaned into the storage space by the cleaning unit, the cleaning unit needs to be moved along the width or length direction of the notch of the first storage tank to the side away from the storage space by the moving unit before the next cleaning. Or, as Figure 1 and Figure 2 As shown, there may be a holding space 17 between the side walls on both sides of the second holding tank 16 along the moving direction of the cleaning portion 14 and the corresponding side walls of the first holding tank 11; at this time, after the reaction residues on the filter portion 12 are cleaned into the holding space 17 by the cleaning portion 14, and before the next cleaning, there is no need to move the cleaning portion 14 along the width or length direction of the notch of the first holding tank 11 to the side away from the holding space 17 by the moving portion 15.

[0063] As for the specific specifications of the accommodation space, they can be determined according to the actual application scenario and are not specifically limited here. In addition, in the actual application process, the reaction residues in the accommodation space can be removed from the top of the accommodation space. Or, Figure 1 and Figure 2 As shown, a cleaning window 18 may be provided on the side wall of the second receiving tank 16 corresponding to the receiving space 17. In this case, the reaction residues in the receiving space 17 may be removed through the cleaning window 18 to prevent the reaction residues from accumulating in the receiving space 17. In addition, the cleaning window is provided on the side wall of the second receiving tank 16 corresponding to the receiving space 17, and its height is less than the height of the notch of the first receiving tank 11, so as to prevent the reaction residues from falling back into the reaction liquid when the reaction residues are taken out of the receiving space 17, and to prevent the operation of taking out the reaction residues from interfering with the cleaning operation of the photovoltaic cell.

[0064] In addition, the reaction residues can be directly dropped to the bottom of the accommodation space under the action of the cleaning part. Figure 1 and Figure 2As shown, the cleaning device further includes a carrying portion 19 disposed at the bottom of the accommodating space 17 for carrying the reaction residues. In this case, all the reaction residues on the carrying portion 19 can be taken out by taking out the carrying portion 19, thereby reducing the difficulty of taking out the reaction residues from the accommodating space 17. Specifically, the embodiment of the utility model does not specifically limit the structure of the carrying portion, as long as it can collect the reaction residues.

[0065] Furthermore, the reaction residues dropped into the storage space may contain reaction liquid, which may pollute the external environment. Based on this, the reaction residues may be taken out of the storage space and then cleaned by other devices in the outside world. Or, Figure 1 and Figure 2 As shown, the cleaning device may further include a cleaning unit 20 disposed in the accommodating space 17, for cleaning the reaction residues in the accommodating space 17, to remove the reaction liquid on the reaction residues. In addition, a sewage outlet 21 is provided at the bottom of the second accommodating tank 16, for discharging cleaning liquid and reaction liquid. In this case, before removing the reaction residues, the reaction residues may be cleaned by the cleaning unit 20, so as to prevent the reaction liquid remaining on the reaction residues from polluting the manufacturing environment, and at the same time prevent the residual reaction liquid from causing damage to the device or staff for removing the reaction residues, thereby improving work safety. In addition, the cleaning unit 20 is located in the accommodating space 17, and the accommodating space 17 is located outside the first accommodating tank 16, so that the reaction residues are cleaned by the cleaning unit 20, and the reaction liquid in the first accommodating tank 16 will not be affected. The cleaning of the photovoltaic cell by the reaction liquid, that is, the cleaning of the cleaning unit 20 and the use of the first accommodating tank 16 can be carried out simultaneously, thereby improving the working efficiency of the cleaning device.

[0066] Specifically, the embodiment of the utility model does not specifically limit the structure of the cleaning part and the specific location of the cleaning part in the accommodation space, as long as the reaction liquid on the reaction residue can be cleaned off. For example, the cleaning part may include a water tank and a spraying part connected to the water tank, so that the reaction liquid on the reaction residue can be cleaned off by spraying.

[0067] As for the specific location of the sewage outlet, it can be located at the bottom of the accommodation space. Figure 1 and Figure 2 As shown, in a horizontal plane and perpendicular to the moving direction of the cleaning portion 14, if there is a gap between the side wall of the second receiving tank 16 and the corresponding side wall of the first receiving tank 11, the drain outlet 21 can also be set at the bottom of the above gap.

[0068] It should be noted that, when the cleaning device also includes a cleaning part and a carrying part arranged in the accommodating space, the carrying part can be a structure with holes, so that during the process of cleaning the reaction residues by the cleaning part, the cleaning liquid and the reaction liquid can be discharged to the drain outlet through the holes arranged on the carrying part.

[0069] In one possible implementation, Figure 1 and Figure 2 As shown, a cover 22 may be provided at the notch of the second receiving tank 16. In this case, since the first receiving tank 11 is located in the second receiving tank 16, when the cover 22 is provided at the notch of the second receiving tank 16, the first receiving tank 11 can be placed in a relatively closed environment when the cover 22 is closed. Therefore, the presence of the cover 22 can prevent the volatiles generated by the reaction in the first receiving tank 11 from evaporating to the external environment in large quantities when the photovoltaic cell is cleaned, thereby preventing the external environment from being polluted. At the same time, it can also reduce pollutants such as particles in the environment from falling into the first receiving tank 11, prevent the reaction liquid from being polluted, and further extend the service life of the reaction liquid.

[0070] Specifically, the embodiment of the present invention does not specifically limit the structure of the cover. Figure 1 and Figure 2 As shown, the cover 22 can be a cover that is arranged at the notch of the second receiving slot 16 by means of a hinge or other structure; in this case, the cover can be arranged in a split manner or in a single-open manner. Alternatively, the cover can also be a cover that covers the notch of the second receiving slot.

[0071] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A cleaning device, characterized in that: The cleaning device is used to clean the objects to be removed formed on the photovoltaic cell; the cleaning device comprises: a first receiving tank, a filtering part and a lifting part; wherein, The first holding tank is used to hold the reaction liquid; the filter part is arranged in the first holding tank; the lifting part is connected to the filter part and is used to adjust the height of the filter part in the first holding tank so as to filter the reaction residues in the reaction liquid through the filter part.

2. The cleaning device according to claim 1, characterized in that: The filter unit includes a filter screen; and / or, The filter unit includes a polytetrafluoroethylene filter unit; and / or, The filter unit includes an activated carbon filter unit.

3. The cleaning device according to claim 1, characterized in that: The lifting part includes: a first driving member, a first transmission member driven by the first driving member, and a first actuator driven by the first transmission member and performing reciprocating linear motion along the direction from the bottom of the first containing groove to the groove opening; the first actuator is connected to the filtering part.

4. The cleaning device according to claim 3, characterized in that: The first driving member is a motor; and / or, The first transmission member is a screw rod; the first actuator is a mounting seat, the mounting seat is provided with a threaded hole penetrating therethrough, and the mounting seat is screwed onto the screw rod through the threaded hole.

5. The cleaning device according to claim 1, characterized in that: The cleaning device also includes: a cleaning part and a moving part; the cleaning part is arranged at the notch of the first receiving tank; the moving part is connected to the cleaning part, and is used to move the cleaning part from one side to the other side along the length or width direction of the first receiving tank after the filter part rises to the notch of the first receiving tank, so as to remove the reaction residues on the filter part.

6. The cleaning device according to claim 5, characterized in that: The cleaning part is a scraper; and / or, The moving part includes: a second driving member, a second transmission member driven by the second driving member, and a second actuator driven by the second transmission member and performing reciprocating linear motion along the length or width direction of the first receiving groove; the second actuator is connected to the cleaning part.

7. The cleaning device according to claim 5, characterized in that: The cleaning device further comprises a second containing tank; the first containing tank is located inside the second containing tank; Along the moving direction of the cleaning part, there is a containing space between the side wall of the second containing groove and the side wall of the first containing groove, which is used to contain the reaction residues removed from the filtering part.

8. The cleaning device according to claim 7, characterized in that: A cleaning window is provided on the side wall of the second receiving groove corresponding to the receiving space; and / or, The cleaning device further comprises a bearing portion arranged at the bottom of the containing space for bearing the reaction residues.

9. The cleaning device according to claim 7, characterized in that: The cleaning device further comprises a cleaning portion disposed in the accommodation space, for cleaning the reaction residues in the accommodation space to remove the reaction liquid on the reaction residues; A drain port is provided at the bottom of the second containing tank for discharging the cleaning liquid and the reaction liquid.

10. The cleaning device according to claim 7, characterized in that: A cover is provided at the notch of the second containing groove.

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