Film removing device

Abstract

The utility model provides a film removing device, the film removing device is used for removing a related film layer on a battery piece of a solar battery, the film removing device comprises a bearing table, a cleaning structure and a sealing structure, the bearing table is used for bearing the battery piece to be subjected to film removing; the cleaning structure comprises a spraying head, and the spraying head is used for spraying a film removing liquid medicine towards the surface, deviating from the bearing table, of the battery piece to be subjected to film removing; the sealing structure is arranged on the bearing table to prevent the film-removing liquid medicine from permeating into the surface, facing the bearing table, of the to-be-removed battery piece, and if bad conditions such as dirt, dark pieces and hard spots occur on the battery piece, the spraying head can be used for spraying the film-removing liquid medicine to the surface, deviating from the bearing table, of the to-be-removed battery piece, so that a related film layer falls off from the to-be-removed battery piece, and the film-removing efficiency is improved. Therefore, a worker can conveniently judge whether the bad condition is formed in the working procedure before film coating or the working procedure after film coating, and the bad condition is optimized, so that the phenomenon that the battery piece with the abnormal condition is directly scrapped is avoided, and the production cost of the solar battery is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of solar cell production, and in particular to a film removal device. Background Art

[0002] During the production process of solar cells, it is necessary to perform electroluminescence testing on the solar cell cells. During the electroluminescence test, a reverse bias is applied to the cell to put it in a specific working state. At this time, defects, impurities, etc. in the cell will cause local luminescence abnormalities. These luminescent images can be captured by highly sensitive imaging equipment to analyze the luminescence conditions after the cell is powered on to judge the quality of the cell. However, if the cell has undesirable conditions such as dirt, dark spots, and pitting during the electroluminescence test, it will affect the photoelectric conversion efficiency of the solar cell. Therefore, in order to improve the photoelectric conversion efficiency of the solar cell, the dirt, dark spots, and pitting on the cell during the electroluminescence test need to be processed.

[0003] In the related art, it is impossible to accurately identify the adverse conditions such as dirt, dark spots, and pitting detected by electroluminescence testing. However, in order to ensure the production yield of solar cells, the cells with adverse conditions are usually recycled for re-production or directly scrapped. Regardless of which treatment method is used, the production cost of the solar cells is increased. Utility Model Content

[0004] The present application discloses a film removal device, which can reduce the production cost of solar cells.

[0005] To achieve the above-mentioned objectives, the present application discloses a film removal device for removing relevant film layers on solar cell cells. The film removal device comprises:

[0006] A carrying platform, the carrying platform is used to carry the battery sheet to be stripped;

[0007] A cleaning structure, the cleaning structure comprising a spray head, the spray head being used to spray a de-filming solution toward the surface of the cell to be de-filmed facing away from the supporting platform;

[0008] A sealing structure is provided on the supporting platform to prevent the film removal solution from penetrating into the surface of the battery cell to be film removed that faces the supporting platform.

[0009] Optionally, there is a first preset angle between the supporting platform and the horizontal direction;

[0010] A limiting structure is provided on the supporting platform, and the limiting structure is used to limit the battery cell to be removed from the supporting platform.

[0011] Optionally, along the first direction, the carrying platform has a first end and a second end, along the vertical direction, the first end is higher than the second end, and the first direction is parallel to the surface of the carrying platform;

[0012] The sealing structure is provided near the first end, and is used to prevent the film removal solution from penetrating into the surface of the battery cell to be removed facing the supporting platform through the first side edge of the battery cell to be removed near the first end.

[0013] Optionally, the limiting structure includes a first limiting member and a second limiting member arranged on the supporting platform, the first limiting member is arranged close to the second end, the first limiting member is used to limit the second side edge of the battery cell to be removed from the film close to the second end, the second limiting member is located between the first end and the second end, the second limiting member is used to limit the third side edge and / or fourth side edge of the battery cell to be removed from the film, and the third side edge and the fourth side edge are both connected to the first side edge and the second side edge.

[0014] Optionally, the second limiting members include two, and the two second limiting members can move toward or away from each other along the second direction. The two second limiting members respectively limit the third side edge and the fourth side edge of the battery cell to be removed. There is a second preset angle between the second direction and the first direction, and the second direction is parallel to the table surface direction of the supporting platform.

[0015] Optionally, an adsorption structure is further provided on the supporting platform, and the adsorption structure is used to adsorb and fix the battery cell to be de-filmed on the supporting platform.

[0016] Optionally, the adsorption structure includes a plurality of vacuum adsorption holes arranged on the supporting platform.

[0017] Optionally, a baffle is further provided on the supporting platform, and the baffle is used to prevent the film removal solution from splashing out.

[0018] Optionally, the cleaning structure further includes a liquid storage tank and a recovery tank that are interconnected, the liquid storage tank is used to store the defilming solution, the liquid storage tank is connected to the spray head, and the recovery tank is used to recover the defilming solution sprayed by the spray head on the battery cell to be defilmed.

[0019] Optionally, a filtering device is further provided in the recovery tank, and the filtering device is used to filter the film removal solution entering the recovery tank.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] The defilming device provided in the present application can place the cell to be defilmed on a supporting platform when conducting a cell luminescence test. If dirt, dark spots, pitting or other undesirable conditions appear on the cell, the cell to be defilmed can be placed on a supporting platform, and a defilming solution can be sprayed toward the surface of the cell to be defilmed that is away from the supporting platform using a spray head, so that the defilming solution reacts with the relevant film layer on the surface of the cell to be defilmed that is away from the supporting platform, so that the relevant film layer falls off the cell to be defilmed, so that the staff can judge whether the above-mentioned undesirable conditions are formed in the pre-coating process or the post-coating process, and further identify the specific location of the above-mentioned undesirable conditions on the cell, so as to optimize the above-mentioned undesirable conditions, thereby avoiding directly scrapping the cell with the above-mentioned abnormal conditions and reducing the production cost of solar cells. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. 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.

[0023] Figure 1 This is a schematic structural diagram of a film removal device provided in an embodiment of the present application;

[0024] Figure 2 is a schematic diagram of a carrier platform according to an embodiment of the present application;

[0025] Figure 3 This is a structural diagram of a partial position of a film removal device provided in an embodiment of the present application;

[0026] Figure 4 is a schematic diagram of a carrier platform provided in another embodiment of the present application;

[0027] Figure 5 It is a schematic diagram of the filtration device provided in an embodiment of the present application.

[0028] Description of main reference numerals

[0029] 1- De-filming device;

[0030] 2-battery cell;

[0031] 100 - carrying platform; 110 - first end; 120 - second end; 130 - flexible gasket;

[0032] 200-cleaning structure; 210-spray head; 220-liquid storage tank; 2201-liquid inlet; 230-recovery tank; 2301-filter device; 240-liquid supply pipeline; 250-circulation pump;

[0033] 300-sealed structure;

[0034] 400-limiting structure; 410-first limiting member; 420-second limiting member;

[0035] 500-adsorption structure; 510-vacuum adsorption hole;

[0036] 600-Baffle. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0038] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0039] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0040] Furthermore, the terms "installed," "disposed," "provided with," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0041] Furthermore, the terms "first," "second," etc., are primarily used to distinguish between different devices, elements, or components (which may or may not be of the same type and configuration), and are not intended to indicate or imply the relative importance or quantity of the devices, elements, or components indicated. Unless otherwise specified, "plurality" means two or more.

[0042] As mentioned in the background technology, in the related art, it is impossible to accurately identify the adverse conditions such as dirt, dark spots, and pitting detected by electroluminescence testing. However, in order to ensure the production yield of solar cells, the cells with adverse conditions are usually recycled for re-preparation or directly scrapped. Regardless of which treatment method is used, the production cost of the solar cells is increased.

[0043] In order to solve the above problems, the present application provides a film removal device, which is used to remove the relevant film layers on the solar cell cells. If dirt, dark spots, pitting and other undesirable conditions appear on the cell cells, a spray head can be used to spray a film removal solution toward the surface of the cell to be removed that is away from the supporting platform, so that the relevant film layer falls off from the cell to be removed, so that the staff can judge whether the undesirable condition is formed before or after coating, and optimize the above-mentioned undesirable condition, thereby avoiding directly scrapping the cell cells with the above-mentioned abnormal conditions, thereby reducing the production cost of solar cells.

[0044] The technical solution of the present application will be further described below with reference to specific embodiments and drawings.

[0045] See also Figure 1 and Figure 2 The present embodiment provides a film removal device 1, which is used to remove relevant film layers on solar cell cells. The film removal device 1 includes: a carrier platform 100, a cleaning structure 200 and a sealing structure 300. The carrier platform 100 is used to support the cell 2 to be film removed; the cleaning structure 200 includes a spray head 210, which is used to spray a film removal solution toward the surface of the cell 2 to be film removed that is away from the carrier platform 100; the sealing structure 300 is arranged on the carrier platform 100 to prevent the film removal solution from penetrating into the surface of the cell 2 to be film removed that is facing the carrier platform 100.

[0046] The film removal solution is usually a hydrofluoric acid solution, and the relevant film layers on the battery cell 2 are usually aluminum oxide films, silicon nitride films, anti-reflection films and other related film layers.

[0047] Therefore, when performing a battery luminescence test on the battery cell 2, if dirt, dark spots, pitting and other undesirable conditions appear on the battery cell 2, the battery cell 2 to be de-filmed can be placed on the carrier 100, and the de-filming liquid can be sprayed toward the surface of the battery cell 2 to be de-filmed that is away from the carrier 100 using the spray head 210, so that the de-filming liquid reacts with the relevant film layer on the surface of the battery cell 2 to be de-filmed that is away from the carrier 100, so that the relevant film layer falls off from the battery cell 2 to be de-filmed, so that the staff can judge whether the above-mentioned undesirable conditions are formed in the pre-coating process or the post-coating process, and further identify the specific location of the above-mentioned undesirable conditions on the battery cell 2, so as to optimize the above-mentioned undesirable conditions, thereby avoiding directly scrapping the battery cell 2 with the above-mentioned abnormal conditions, and reducing the production cost of solar cells.

[0048] Furthermore, since a sealing structure 300 is also provided on the carrier platform 100 in this embodiment, the sealing structure 300 can prevent the film removal liquid from penetrating into the surface of the battery cell 2 to be filmed facing the carrier platform 100. Therefore, when the spray head 210 sprays the film removal liquid toward the surface of the battery cell 2 to be filmed facing away from the carrier platform 100, the film removal liquid will not enter the surface of the battery cell 2 to be filmed facing the carrier platform 100, thereby not causing damage to the relevant film layer on the surface of the battery cell 2 to be filmed facing the carrier platform 100, so that the film removal device 1 can accurately remove the relevant film layer on a specified surface of the battery cell 2 to be filmed without damaging another surface. Compared with the related art in which the battery cell 2 to be de-filmed is immersed as a whole in the de-filming solution to remove all the related film layers on the front and back of the battery cell 2 to be de-filmed, this embodiment sets a device on the carrier 100 to prevent the de-filming solution from penetrating into the surface of the battery cell 2 with de-filming facing the carrier 100, so that the de-filming device 1 can realize single-sided de-filming of the battery cell 2 to be de-filmed, so that the staff can select a certain surface to be de-filmed for de-filming according to actual needs, thereby narrowing the scope of investigation of abnormal situations, improving the investigation efficiency, and dealing with the above-mentioned adverse situations as quickly as possible, thereby improving the production efficiency of solar cells.

[0049] In one possible embodiment, see Figure 3 , there is a first preset angle between the carrying platform 100 and the horizontal direction; a limiting structure 400 is provided on the carrying platform 100, and the limiting structure 400 is used to limit the battery cell 2 to be removed from the carrying platform 100.

[0050] Among them, the horizontal direction is Figure 3 The direction indicated by the arrow X.

[0051] It should be noted that the first preset angle can be any angle such as 30°, 45°, 60°, etc., and is not limited here. In a preferred embodiment, the first preset angle is 45°.

[0052] Since there is a first preset angle between the support platform 100 and the horizontal direction, when the spray head 210 sprays the defilming liquid toward the surface of the battery cell 2 to be defilmed carried on the support platform 100 that is away from the support platform 100, the defilming liquid can flow from high places to low places on the surface of the battery cell 2 to be defilmed that is away from the support platform 100 under the action of gravity, which helps the defilming liquid to flow and distribute better on the surface of the battery cell 2 to be defilmed during the defilming process, avoids liquid accumulation or local unevenness, and ensures the uniformity of defilming. In addition, the support platform 100 is also provided with a limiting structure 400 for limiting the battery cell 2 to be defilmed on the support platform 100, which can prevent the battery cell 2 from shifting, sliding or shaking relative to the support platform 100 during the defilming operation, thereby ensuring the accuracy and stability of the defilming operation and reducing poor defilming caused by changes in the position of the battery cell 2.

[0053] In one possible embodiment, see Figure 3 Along the first direction, the carrier platform 100 has a first end 110 and a second end 120. Along the vertical direction, the first end 110 is higher than the second end 120. The first direction is parallel to the surface of the carrier platform 100. The sealing structure 300 is arranged near the first end 110. The sealing structure 300 is used to prevent the film removal solution from penetrating into the surface of the battery cell 2 to be removed facing the carrier platform 100 through the first side edge of the battery cell 2 to be removed near the first end 110.

[0054] Among them, the first direction is Figure 3 The direction indicated by arrow Y.

[0055] By setting a sealing structure 300 near the first end 110, the de-filming solution can be effectively prevented from penetrating from the first side edge of the battery cell 2 to the surface in contact with the carrier 100, thereby avoiding the de-filming solution from penetrating at an unexpected position, causing the surface of the battery cell 2 facing the carrier 100 to be damaged, thereby ensuring that the de-filming operation is more targeted and controllable, so as to accurately de-film a single surface of the battery cell 2 to be de-filmed.

[0056] In one possible embodiment, see Figure 3 The sealing structure 300 includes a cylindrical sealing ring; when the battery cell 2 to be de-filmed is placed on the carrier 100, the sealing ring presses the first side edge of the battery cell 2 toward the carrier 100, so that the surface of the battery cell 2 to be de-filmed facing the carrier 100 is tightly fitted with the carrier 100.

[0057] Of course, the sealing structure 300 is not limited to the above-mentioned form. The sealing structure 300 can also be in the form of using tape to stick the battery cell 2 to be removed to the carrier 100, or setting a sealant between the battery cell 2 to be removed and the carrier 100, etc., which should be known to those skilled in the art.

[0058] In one possible embodiment, see Figure 3 A flexible gasket 130 is further provided on the carrying platform 100 , and the battery cell 2 to be de-filmed is carried on the flexible gasket 130 .

[0059] By arranging a flexible gasket 130 on the supporting platform 100, when the sealing ring presses the first side edge of the battery cell 2 toward the supporting platform 100, the flexible gasket 130 will produce a certain degree of deformation under the action of pressure, so that the surface of the battery cell 2 to be removed facing the supporting platform 100 and the flexible gasket 130 are more tightly fitted, thereby further preventing the de-filming solution from penetrating into the surface of the battery cell 2 to be removed facing the supporting platform 100. In addition, the battery cell 2 to be removed is supported on the flexible gasket, which avoids rigid contact between the battery cell 2 to be removed and the supporting platform 100, thereby preventing the battery cell 2 from being damaged.

[0060] The flexible gasket 130 may be a rubber gasket or a silicone gasket, which is not limited here.

[0061] In one possible embodiment, see 3 and Figure 4 The limiting structure 400 includes a first limiting member 410 and a second limiting member 420 arranged on the supporting platform 100. The first limiting member 410 is arranged near the second end 120. The first limiting member 410 is used to limit the second side edge of the battery cell 2 to be removed from the film near the second end 120. The second limiting member 420 is located between the first end 110 and the second end 120. The second limiting member 420 is used to limit the third side edge and / or fourth side edge of the battery cell 2 to be removed from the film. The third side edge and the fourth side edge are both connected to the first side edge and the second side edge.

[0062] Among them, the second limiting member 420 is used to limit the third side edge and / or fourth side edge of the battery cell 2 to be de-filmed. It should be understood that the second limiting member 420 can limit the third side edge of the battery cell 2, and can also limit the fourth side edge of the battery cell 2, and can also limit both the third side edge and the fourth side edge of the battery cell 2. This embodiment is explained by taking the example of the second limiting member 420 being used to limit both the third side edge and the fourth side edge of the battery cell 2.

[0063] By arranging the first limiting member 410 close to the second end 120, after the battery cell 2 to be de-filmed is placed on the supporting platform 100, the first limiting member 410 can limit the second end 120 of the battery cell 2, thereby preventing the battery cell 2 to be de-filmed from sliding off the supporting platform 100, and the second limiting member 420 is located between the first end 110 and the second end 120, and the second limiting member 420 can limit the third side edge and the fourth side edge of the battery cell 2 to be de-filmed, so that the different side edges of the battery cell 2 are accurately limited by the first limiting member 410 and the second limiting member 420 respectively, ensuring that the position of the battery cell 2 during the de-filming operation is accurate and fixed, reducing problems such as inaccurate de-filming caused by position deviation, so as to achieve a more uniform and consistent de-filming effect, thereby ensuring the quality of the entire de-filming process.

[0064] In one possible embodiment, see Figure 3 The first limiting member 410 is in the shape of a triangular prism, so that the first limiting member 410 can limit the battery cell 2 to be stripped and at the same time guide the stripping solution, thereby allowing the stripping solution to flow out of the carrier 100.

[0065] In a possible embodiment, the second limiting members 420 include two, and the two second limiting members 420 can move toward or away from each other along the second direction. The two second limiting members 420 respectively limit the third side edge and the fourth side edge of the battery cell 2 to be removed from the film. There is a second preset angle between the second direction and the first direction, and the second direction is parallel to the table surface direction of the supporting platform 100.

[0066] The second direction is Figure 4 The direction indicated by the arrow Z.

[0067] It should be noted that the second preset angle can be any angle such as 30°, 45°, 60°, etc., and is not limited here. In a preferred embodiment, the first preset angle is 90°.

[0068] By enabling the two second limiting members 420 to move toward or away from each other along the second direction, and the two second limiting members 420 respectively limit the third side edge and the fourth side edge of the battery cell 2 to be de-filmed, the two second limiting members 420 can match the battery cells 2 to be de-filmed of different specifications by moving toward or away from each other, thereby improving the compatibility of the de-filming device 1 with battery cells 2 of various specifications. In addition, by specifically limiting the third side edge and the fourth side edge of the battery cell 2 to be de-filmed by the two second limiting members 420, the shaking and position deviation of the battery cell 2 in the second direction can be effectively reduced, thereby ensuring the stability of the battery cell 2 during operation.

[0069] In a possible embodiment, the two second limiting members 420 are respectively sealed against the third side edge and the fourth side edge of the battery cell 2 to be de-filmed, and are interconnected with the first limiting structure 400 and the sealing structure 300 to enclose the battery cell 2 to be de-filmed, thereby preventing the de-filming solution from penetrating from the side edges of the battery cell 2 to be de-filmed, so as to further achieve precise de-filming of specific surfaces of the battery cell 2 to be de-filmed.

[0070] In one possible embodiment, see Figure 3 The supporting platform 100 is also provided with an adsorption structure 500, which is used to adsorb and fix the battery cell 2 to be removed from the membrane on the supporting platform.

[0071] By arranging the adsorption structure 500 on the supporting platform 100, when the battery cell 2 to be de-filmed is placed on the supporting platform, the adsorption structure 500 can more firmly fix the battery cell 2 on the supporting platform 100, preventing the battery cell 2 from moving or shifting during operations such as de-filming, thereby ensuring the accuracy and stability of the operation. In addition, the adsorption structure 500 adsorbs and fixes the battery cell 2 to be de-filmed on the supporting platform, so that the surface of the battery cell 2 to be de-filmed facing the supporting platform 100 can be tightly fitted with the supporting platform 100, thereby preventing the de-filming solution from penetrating the surface of the battery cell 2 to be de-filmed facing the supporting platform 100, so that the de-filming device 1 can achieve accurate de-filming of the specific surface of the battery cell 2 to be de-filmed.

[0072] In one possible embodiment, see Figure 4 The adsorption structure 500 includes a plurality of vacuum adsorption holes 510 disposed on the carrier 100 .

[0073] By arranging multiple vacuum adsorption holes 510 on the supporting platform 100, the vacuum adsorption holes 510 can provide more uniform adsorption force to the battery cells 2 to be de-filmed through the multiple vacuum adsorption holes 510, so that each part of the battery cell 2 is evenly stressed and fixed more stably and reliably. In addition, the multiple vacuum adsorption holes 510 work together to enhance the overall adsorption capacity of the adsorption structure. Even if individual vacuum adsorption holes 510 fail or have poor effects, other vacuum adsorption holes 510 can still ensure a certain adsorption effect. In addition, the layout and number of the vacuum adsorption holes 510 can be flexibly adjusted according to actual needs to adapt to battery cells 2 of different specifications and requirements. It can also achieve relatively rapid adsorption and release of the battery cell 2, thereby improving operational efficiency. In addition, the friction between the battery cell 2 and the supporting platform 100 during the picking process is small, thereby avoiding damage to the battery cell 2.

[0074] In one possible embodiment, see Figure 4 , multiple adsorption structures 500 are set on the above-mentioned flexible gasket 130.

[0075] In one possible embodiment, see Figure 3 A baffle 600 is also provided on the carrier platform 100, and the baffle 600 is used to prevent the film removal solution from splashing out.

[0076] By setting a baffle 600 on the supporting platform 100, the film removal liquid can be effectively prevented from splashing out, thereby reducing the risk of injury to the operator caused by the film removal liquid and ensuring the safety of the working environment. It can also prevent the film removal liquid from splashing onto surrounding equipment, objects or the ground, avoiding pollution and damage to the surrounding environment. In addition, it can also avoid unnecessary loss of the film removal liquid, saving costs to a certain extent.

[0077] In one possible embodiment, see Figure 3 The baffle 600 is disposed near the first end 110 of the carrier platform 100 , and the baffle 600 is a half-moon baffle.

[0078] By making the baffle 600 a semi-circular baffle, the disturbance and mixing effect on the splashing de-filming liquid can be enhanced, so as to guide the splashing de-filming liquid to flow from the first end 110 toward the second end 120, so that the de-filming liquid flows out of the supporting platform 100 from the second end 120 under the action of gravity, thereby avoiding the formation of liquid accumulation on the supporting platform 100.

[0079] In one possible embodiment, see Figure 1 The cleaning structure 200 also includes a liquid storage tank 220 and a recovery tank 230 that are interconnected. The liquid storage tank 220 is used to store the film removal solution. The liquid storage tank 220 is connected to the spray head 210. The recovery tank 230 is used to recover the film removal solution sprayed by the spray head 210 on the battery cell 2 to be removed.

[0080] By setting up the recovery tank 230, the recovery tank 230 can collect the used defilming liquid, which not only prevents the used defilming liquid from flowing and spreading arbitrarily, causing pollution on a larger scale, and is conducive to maintaining a clean and tidy working environment, but also allows the used defilming liquid to be reused or properly disposed of after appropriate treatment, thereby improving the utilization rate of the liquid, reducing costs and reducing waste. Moreover, since the liquid storage tank 220 and the recovery tank 230 are interconnected, the defilming liquid recovered by the recovery tank 230 can enter the liquid storage tank 220 and be supplied to the spray head 210 through the liquid storage tank 220, thereby ensuring that there is enough defilming liquid in the liquid storage tank 220 to supply the spray head 210, avoiding the interruption of the defilming operation due to insufficient defilming liquid, thereby ensuring the continuous progress of the defilming operation.

[0081] In one possible embodiment, see Figure 1 The cleaning structure 200 further includes a liquid supply pipe 240 connecting the liquid storage tank 220 and the spray head 210 . A circulation pump 250 is provided on the liquid supply pipe. The circulation pump 250 allows the film removal solution in the liquid storage tank 220 to flow toward the spray head 210 .

[0082] In one possible embodiment, see Figure 1 A filtering device 2301 is also provided in the recovery tank 230 , and the filtering device 2301 is used to filter the film removal solution entering the recovery tank 230 .

[0083] By arranging a filter device 2301 in the recovery tank 230, the filter device 2301 filters out impurities and pollutants in the defilming liquid recovered in the recovery tank 230, making the recovered defilming liquid purer, which is conducive to subsequent reuse or treatment, and avoids the accumulation of impurities in the defilming device 1 causing blockage of the liquid supply pipe, spray head 210, etc. of the defilming device 1, thereby ensuring the smooth circulation of the liquid.

[0084] The filtering device 2301 may be a cartridge filter, a bag filter, a sand filter, a filter that utilizes centrifugal force to separate impurities, and the like, and is not limited thereto.

[0085] In one possible embodiment, see Figure 5 The filter device 2301 is a filter screen that is detachably arranged in the recovery tank 230. After the membrane is removed, the filter screen can be disassembled, cleaned, and kept for use. Using the filter screen as the filter device 2301 has a simple structure, is easy to replace, and has a low cost.

[0086] In one possible embodiment, see Figure 1 The liquid storage tank 220 is also provided with a liquid replenishing port 2201, so that the film removal liquid can be replenished into the liquid storage tank 220 through the liquid replenishing port 2201 during the film removal process to maintain the concentration of the film removal liquid in the liquid storage tank 220 and ensure the film removal effect.

[0087] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the film removal device of the present application, rather than to limit it; although the film removal device of the present application has been described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some or all of the technical features therein with equivalents; and these modifications or replacements do not cause the essence of the corresponding technical solution to deviate from the scope of the technical solution of the embodiments of the present application.

Claims

1. A film removal device, characterized in that: The film removal device is used to remove the relevant film layer on the solar cell cell, and the film removal device includes: A carrying platform, the carrying platform is used to carry the battery sheet to be stripped; A cleaning structure, the cleaning structure comprising a spray head, the spray head being used to spray a de-filming solution toward the surface of the cell to be de-filmed facing away from the supporting platform; A sealing structure is provided on the supporting platform to prevent the film removal solution from penetrating into the surface of the battery cell to be film removed that faces the supporting platform.

2. The film removal device according to claim 1, characterized in that There is a first preset angle between the supporting platform and the horizontal direction; A limiting structure is provided on the supporting platform, and the limiting structure is used to limit the battery cell to be removed from the supporting platform.

3. The film removal device according to claim 2, characterized in that: Along a first direction, the carrying platform has a first end and a second end, along a vertical direction, the first end is higher than the second end, and the first direction is parallel to the table surface of the carrying platform; The sealing structure is provided near the first end, and is used to prevent the film removal solution from penetrating into the surface of the battery cell to be removed facing the supporting platform through the first side edge of the battery cell to be removed near the first end.

4. The film removal device according to claim 3, characterized in that: The limiting structure includes a first limiting member and a second limiting member arranged on the supporting platform, the first limiting member is arranged close to the second end, the first limiting member is used to limit the second side edge of the battery cell to be removed from the film close to the second end, the second limiting member is located between the first end and the second end, the second limiting member is used to limit the third side edge and / or fourth side edge of the battery cell to be removed from the film, and the third side edge and the fourth side edge are both connected to the first side edge and the second side edge.

5. The film removal device according to claim 4, characterized in that: The second limiting members include two, and the two second limiting members can move toward or away from each other along the second direction. The two second limiting members respectively limit the third side edge and the fourth side edge of the battery cell to be removed. There is a second preset angle between the second direction and the first direction, and the second direction is parallel to the table surface direction of the supporting platform.

6. The film removal device according to claim 1, characterized in that: The supporting platform is further provided with an adsorption structure, which is used to adsorb and fix the battery sheet to be de-filmed on the supporting platform.

7. The film removal device according to claim 6, characterized in that: The adsorption structure includes a plurality of vacuum adsorption holes arranged on the supporting platform.

8. The film removal device according to claim 1, characterized in that: The supporting platform is further provided with a baffle, which is used to prevent the film removal solution from splashing out.

9. The film removal device according to claim 1, characterized in that: The film removal device also includes a liquid storage tank and a recovery tank that are interconnected. The liquid storage tank is used to store the film removal solution. The liquid storage tank is connected to the spray head. The recovery tank is used to recover the film removal solution sprayed by the spray head on the battery cell to be film removed.

10. The film removal device according to claim 9, characterized in that: A filtering device is also provided in the recovery tank, and the filtering device is used to filter the film removal solution entering the recovery tank.

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