Backlight cleaning machine for topcon battery piece production

Abstract

The utility model discloses a backlight cleaning machine for production of a topcon battery piece, and relates to the technical field of topcon battery piece cleaning devices, the backlight cleaning machine comprises a placing base, a cleaning device is arranged on the placing base, the cleaning device comprises a guide shifting unit and an installation filtering unit, the guide shifting unit comprises an opening and closing closed box body, and the installation filtering unit is arranged on the opening and closing closed box body. The opening and closing closed box body is composed of a closed plate and an opening and closing hinge, the placing base is provided with a guide moving seat, a guide protrusion is arranged on the guide moving seat, an inclined base plate is arranged on the guide protrusion, one side of the inclined base plate is connected with a topcon battery piece limiting plate, and a cleaning screen plate is arranged on the topcon battery piece limiting plate. According to the utility model, through the connection of the inclined base plate and the topcon battery piece limiting plate arranged in the guide moving unit, the topcon battery piece on the topcon battery piece limiting plate can be limited in the process that the inclined base drives the topcon battery piece limiting plate to turn over, the inclined base is prevented from deviating from the moving track, and the topcon battery piece is ensured not to fall off, so that the cleaning is smoothly carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of topcon battery sheet cleaning devices, in particular to a backlight cleaning machine for topcon battery sheet production. Background Art

[0002] Photovoltaic cells can be classified into P-type cells and N-type cells based on their substrate materials. N-type cells are divided into three types: TOPCon, HJT, and IBC. Their energy-to-energy conversion efficiency is about 25.5%. There is no essential difference between the front of the TOPCon cell and the conventional N-type solar cell. The core technology of the cell is the back passivation contact. The back of the cell is composed of a layer of ultra-thin silicon oxide (1-2nm) and a layer of phosphorus-doped microcrystalline amorphous mixed Si film. The two together form a passivation contact structure. The passivation performance is activated through an annealing process. The crystallinity of the Si film changes during the annealing process, and it transforms from a microcrystalline amorphous mixed phase to a polycrystalline. This structure can block the recombination of minority carriers and holes, and increase the open circuit voltage and short-circuit current of the cell.

[0003] During the production process of topcon cells, they need to be cleaned by a backlight cleaning machine. Traditional backlight cleaning machines mostly use water spray cleaning. It is difficult to effectively remove stubborn impurities on topcon cells and multiple cleanings are required. In order to improve work efficiency and save water resources, it is necessary to design an efficient backlight cleaning machine for topcon cell production.

[0004] For example, a high-efficiency backlight cleaning machine for topcon battery production disclosed in Chinese patent publication number CN219597401U drives the cleaning brush on the electric guide rail to move downward through the cylinder to contact the topcon battery, and then drives the cleaning brush to move back and forth on the topcon battery through the electric guide rail, and can cooperate with the water spray plate to brush the topcon battery, so as to remove the stubborn impurities on the topcon battery, and after removal, the support plate is driven to tilt by the rotating component, so as to wash away the impurities brushed off the topcon battery, and the topcon battery is first brushed and then tilted for washing, which greatly improves the cleaning efficiency of the topcon battery;

[0005] The existing technology has the following problems:

[0006] This efficient backlight cleaning machine completes the tilting of the support plate by rotating the components, but the support plate on which the topcon battery cells are placed lacks the corresponding clamping components. Therefore, during the flipping and tilting cleaning process, it is easy to cause the support plate to shift and shake, causing the topcon battery cells to fall, thereby reducing the cleaning efficiency. Utility Model Content

[0007] The utility model provides a backlight cleaning machine for producing topcon battery slices to solve the problems raised in the above background technology.

[0008] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0009] A backlight cleaning machine for topcon cell production, comprising a placement base, on which a cleaning device is arranged, the cleaning device comprising a guide displacement unit and an installation filter unit, the guide displacement unit being installed at the upper end of the placement base, and the installation filter unit being installed at the lower end of the placement base;

[0010] The guide shift unit includes an opening and closing closed box body, which is composed of a closing plate and an opening and closing leaf, and the left and right ends of the placement base are symmetrically distributed with guide moving seats, and the guide moving seat is provided with a guide protrusion, and the guide protrusion is provided with an inclined substrate, and one side of the inclined substrate is connected to a topcon battery cell limiting plate, and the topcon battery cell limiting plate is provided with a cleaning screen. The utility model connects the inclined substrate and the topcon battery cell limiting plate provided in the guide moving unit, so that the inclined base can complete the limiting process of the topcon battery cell limiting plate while driving the topcon battery cell limiting plate to flip, and cooperates with the guide moving seat to slide with the guide protrusion and the inclined substrate to prevent the inclined base from deviating from the moving track, and ensure that the topcon battery cell does not fall, so that the cleaning can be carried out smoothly.

[0011] A further improvement of the technical solution of the utility model is that: the closing plate is fixedly mounted on the placement base, the opening and closing plate is connected to the closing plate through a hinge assembly, the guide movable seat is vertically fixedly mounted on the placement base, the guide movable seat is limitedly and slidably connected to the inclined substrate through a guide protrusion, the inclined substrate is fixedly connected to the topcon battery cell limiting plate, and the topcon battery cell limiting plate is fixedly connected to the cleaning screen.

[0012] A further improvement of the technical solution of the utility model is that: an embedded pipe seat is provided at the top of the closing plate, a cleaning pipe is provided in the embedded pipe seat, a nozzle head is provided at the bottom of the cleaning pipe, a cleaning assembly is provided on the other side of the closing plate, an observation window is provided on the closing plate, and a through groove is provided below the observation window.

[0013] A further improvement of the technical solution of the utility model is that: the buried pipe seats are provided with two groups and are symmetrically distributed at the top of the closing plate, the cleaning pipe is limited and buried in the buried pipe seat, the cleaning pipe is fixedly connected to the nozzle head, the cleaning component is limited and plugged into the closing plate, and the observation window is detachably connected to the closing plate.

[0014] A further improvement of the technical solution of the utility model is that the installed filter unit includes an impurity discharge port, a material passage is arranged below the impurity discharge port, a screening round seat is arranged directly below the impurity discharge port, an adsorption magnetic sheet is arranged on the screening round seat, and a liquid outflow pipe is arranged on one side of the screening round seat.

[0015] The utility model completes the impurity discharge channel after the topcon battery cell is cleaned by installing the impurity discharge port set in the filter unit, and cooperates with the adsorption magnetic sheet on the screening round seat to complete the adsorption of impurity iron filings, ensuring the subsequent smooth centralized treatment of the outflowing cleaning water.

[0016] A further improvement of the technical solution of the utility model is that the impurity discharge port is opened on the placement base, the material passage pipe is fixedly connected to the bottom of the placement base, the screening round seat is fixedly installed at the bottom of the impurity discharge port, and the adsorption magnetic sheet is fixedly connected to the screening round seat.

[0017] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0018] 1. The utility model provides a backlight cleaning machine for topcon battery cell production. By connecting the inclined substrate arranged in the guide moving unit and the topcon battery cell limiting plate, the topcon battery cell on the inclined base can complete the limiting process when the topcon battery cell limiting plate is turned over. At the same time, the guiding moving seat cooperates with the guiding protrusion and the guiding sliding of the inclined substrate to avoid the inclined base from deviating from the moving track, ensure that the topcon battery cell does not fall, and thus the cleaning can be carried out smoothly.

[0019] 2. The utility model provides a backlight cleaning machine for topcon battery cell production. The impurity discharge port arranged in the filter unit is installed to complete the impurity discharge channel after the topcon battery cell is cleaned, and the adsorption magnetic sheet on the screening round seat is used to complete the adsorption of impurity iron filings, ensuring the subsequent smooth centralized treatment of the outflowing cleaning water. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the cleaning device of the utility model;

[0022] Figure 3 This is a structural schematic diagram of the guide shift unit of the utility model;

[0023] Figure 4 This is a structural schematic diagram of the installation of the filter unit of the utility model.

[0024] In the figure: 1. Placement base; 201. Open and close closed box; 202. Closing plate; 203. Open and close leaf; 204. Guide moving seat; 205. Inclined substrate; 206. Topcon battery cell limiting plate; 207. Cleaning screen; 208. Buried pipe seat; 209. Cleaning pipeline; 210. Nozzle head; 211. Cleaning assembly; 212. Observation window; 213. Through slot; 301. Impurity discharge port; 302. Feeding pipeline; 303. Screening round seat; 304. Adsorption magnetic sheet; 305. Liquid outflow pipe. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0027] Embodiment 1:

[0028] A backlight cleaning machine for topcon cell production includes a placement base 1, a cleaning device is arranged on the placement base 1, the cleaning device includes a guide displacement unit and an installation filter unit, the guide displacement unit is installed at the upper end of the placement base 1, and the installation filter unit is installed at the lower end of the placement base 1;

[0029] The guide shift unit includes an opening and closing closed box 201, which is composed of a closing plate 202 and an opening and closing leaf 203. The guide movable seat 204 is symmetrically distributed at the left and right ends of the placement base 1. The guide movable seat 204 is provided with a guide protrusion, and an inclined substrate 205 is provided on the guide protrusion. A topcon battery cell limiting plate 206 is connected to one side of the inclined substrate 205, and a cleaning screen 207 is provided on the topcon battery cell limiting plate 206. The utility model connects the inclined substrate 205 and the topcon battery cell limiting plate 206 provided in the guide movable unit, so that the inclined base 205 can complete the limit in the process of driving the topcon battery cell limiting plate 206 to flip, and cooperates with the guide movable seat 204 to slide through the guide protrusion and the inclined substrate 205, so as to prevent the inclined base 205 from deviating from the moving track, and ensure that the topcon battery cell does not fall, so that the cleaning can be carried out smoothly.

[0030] The closing plate 202 is fixedly mounted on the placement base 1, the opening and closing hinge 203 is connected to the closing plate 202 through a hinge assembly, the guide movable seat 204 is vertically fixedly mounted on the placement base 1, the guide movable seat 204 is limitedly slidably connected to the inclined substrate 205 through a guide protrusion, the inclined substrate 205 is fixedly connected to the topcon battery cell limiting plate 206, and the topcon battery cell limiting plate 206 is fixedly connected to the cleaning screen 207.

[0031] A buried pipe seat 208 is provided at the top of the closing plate 202, a cleaning pipe 209 is provided in the buried pipe seat 208, a nozzle head 210 is provided at the bottom of the cleaning pipe 209, a cleaning assembly 211 is provided on the other side of the closing plate 202, an observation window 212 is provided on the closing plate 202, and a through groove 213 is provided below the observation window 212.

[0032] There are two groups of buried pipe seats 208 and they are symmetrically distributed at the top of the closing plate 202. The cleaning pipes 209 are limitedly buried in the buried pipe seats 208. The cleaning pipes 209 are fixedly connected to the nozzle heads 210. The cleaning components 211 are limitedly plugged into the closing plate 202. The observation window 212 is detachably connected to the closing plate 202.

[0033] Embodiment 2:

[0034] On the basis of Example 1: the filter unit is installed to include an impurity discharge port 301, a material passage pipe 302 is arranged below the impurity discharge port 301, a screening round seat 303 is arranged directly below the impurity discharge port 301, an adsorption magnetic sheet 304 is arranged on the screening round seat 303, and a liquid outflow pipe 305 is arranged on one side of the screening round seat 303.

[0035] The utility model completes the impurity discharge channel after the topcon battery cell is cleaned by installing the impurity discharge port 301 set in the filter unit, and cooperates with the adsorption magnetic sheet 304 on the screening round seat 303 to complete the adsorption of impurity iron filings, ensuring the subsequent smooth centralized treatment of the outflowing cleaning water.

[0036] The impurity discharge port 301 is opened on the placement base 1, the material passage 302 is fixedly connected to the bottom of the placement base 1, the screening round seat 303 is fixedly installed at the bottom of the impurity discharge port 301, and the adsorption magnetic sheet 304 is fixedly connected to the screening round seat 303.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A backlight cleaning machine for topcon cell production, comprising a placement base (1), characterized in that: The placement base (1) is provided with a cleaning device, the cleaning device comprising a guide displacement unit and a mounting filter unit, the guide displacement unit is mounted on the upper end of the placement base (1), and the mounting filter unit is mounted on the lower end of the placement base (1); The guide displacement unit comprises an opening and closing closed box body (201), the opening and closing closed box body (201) is composed of a closing plate (202) and an opening and closing leaf (203), the placing base (1) is symmetrically provided with guide movable seats (204) at the left and right ends, the guide movable seats (204) are provided with guide protrusions, the guide protrusions are provided with an inclined substrate (205), one side of the inclined substrate (205) is connected to a topcon battery cell limiting plate (206), and the topcon battery cell limiting plate (206) is provided with a cleaning screen (207).

2. The backlight cleaning machine for topcon cell production according to claim 1, characterized in that: The closing plate (202) is fixedly mounted on the placement base (1); the opening and closing hinge (203) is connected to the closing plate (202) via a hinge assembly; the guide movable seat (204) is vertically fixedly mounted on the placement base (1); the guide movable seat (204) is limitedly slidably connected to an inclined base plate (205) via a guide protrusion; the inclined base plate (205) is fixedly connected to a topcon battery cell limiting plate (206); and the topcon battery cell limiting plate (206) is fixedly connected to a cleaning screen (207).

3. The backlight cleaning machine for topcon cell production according to claim 1, characterized in that: A pipe embedding seat (208) is arranged at the top of the closing plate (202), a cleaning pipe (209) is arranged in the pipe embedding seat (208), a nozzle head (210) is arranged at the bottom of the cleaning pipe (209), a cleaning assembly (211) is arranged on the other side of the closing plate (202), an observation window (212) is arranged on the closing plate (202), and a through groove (213) is arranged below the observation window (212).

4. The backlight cleaning machine for topcon cell production according to claim 3, characterized in that: The buried pipe seats (208) are provided in two groups and are symmetrically distributed at the top of the closed plate (202); the cleaning pipe (209) is limitedly buried in the buried pipe seat (208); the cleaning pipe (209) is fixedly connected to the nozzle head (210); the cleaning component (211) is limitedly plugged into the closed plate (202); and the observation window (212) is detachably connected to the closed plate (202).

5. The backlight cleaning machine for topcon cell production according to claim 1, characterized in that: The installed filter unit comprises an impurity discharge port (301), a material passage pipe (302) is arranged below the impurity discharge port (301), a screening round seat (303) is arranged directly below the impurity discharge port (301), an adsorption magnetic sheet (304) is arranged on the screening round seat (303), and a liquid outflow pipe (305) is arranged on one side of the screening round seat (303).

6. The backlight cleaning machine for topcon cell production according to claim 5, characterized in that: The impurity discharge port (301) is opened on the placement base (1), the material passage pipe (302) is fixedly connected to the bottom of the placement base (1), the screening round seat (303) is fixedly installed on the bottom of the impurity discharge port (301), and the adsorption magnetic sheet (304) is fixedly connected to the screening round seat (303).

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