HJT battery PVD process automatic feeding device based on support plate positioning

Abstract

The utility model relates to the technical field of photovoltaic cells, in particular to an HJT cell PVD (Physical Vapor Deposition) process automatic feeding device based on carrier plate positioning, which comprises a pair of symmetrically arranged racks, a conveying mechanism, a feeding mechanism and a cell carrier plate, the cell carrier plate is arranged in the middle of the conveying mechanism, a group of main positioning cameras are arranged in the middle of the upper surface of the cell carrier plate, and a group of auxiliary positioning cameras are arranged in the middle of the upper surface of the cell carrier plate. A plurality of sets of auxiliary positioning cameras are symmetrically arranged on the two sides of the upper surface, the conveying mechanism is installed on the rack, the feeding mechanism is arranged in the middle of one side of the rack, and a line scanning camera parallel to the battery carrying plate is arranged above the rack. UVW mechanical calibration is conducted on the feeding mechanism through the positioning camera, after feeding is debugged to be correct, UVW compensation parameter value fine adjustment is conducted again through detection of the line scanning camera to achieve the no-landing-edge phenomenon, the UVW compensation parameter value is stored, and the problems that when existing equipment is used, the steps are tedious, and repeated operation calibration is needed after feeding are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic cells, in particular to an automatic feeding device for a HJT cell PVD process based on carrier plate positioning. Background Art

[0002] The main function of PVD equipment in HJT battery technology is physical vapor deposition under vacuum conditions, using low voltage, high current arc discharge technology, using gas discharge to excite the target material, and ionize the excited substance and gas, using the acceleration of the electric field to deposit the excited substance and its reaction products on the workpiece to form a film, which mainly collects current and reduces reflection. During the reaction process, the main tooling used is the carrier, and the silicon wafer is placed on the carrier through automated equipment to complete the above-mentioned coating task. In order to form a good coating effect, the silicon wafer needs to be placed in the center of the carrier. The offset will cause the silicon wafer to overlap, and the current collection function of such silicon wafers will deteriorate, reducing the conversion efficiency.

[0003] Through searching, the public announcement number is: CN220439582U, which is a correction mechanism and a feeding device. The correction mechanism includes a detection component, a lifting component and an adjustment component. The detection component is used to obtain the position information of the sheet located on the carrier, and the adjustment component includes an adjustment driver, an eccentric turntable and an abutment member, the adjustment driver is connected to the eccentric turntable, and the abutment member is rotatably connected to the eccentric turntable. The adjustment driver is used to drive the eccentric turntable to rotate so that the abutment member swings until the detection component detects that the sheet is located at a preset position. The lifting component is connected to the adjustment component, and the lifting component is used to drive the adjustment component to rise so that the abutment member lifts the carrier. The above-mentioned correction mechanism can reduce the deviation of the sheet placement position, thereby improving the accuracy of coating.

[0004] However, this calibration mechanism and feeding device have the problem of complicated steps when used, and repeated calibration operations are required after feeding. Utility Model Content

[0005] In view of the existing problems, the utility model provides an automatic loading device for HJT battery PVD process based on carrier positioning, which aims to solve the problem that the existing equipment has complicated steps when used and needs repeated operation and calibration after loading.

[0006] In view of the existing problems, the utility model provides an automatic feeding device for HJT battery PVD process based on carrier positioning, comprising a pair of symmetrically arranged frames, a conveying mechanism is installed on the frames, a feeding mechanism is arranged in the center of one side of the frames, a battery carrier is arranged in the middle of the conveying mechanism, a group of main positioning cameras are arranged in the middle of the upper surface of the battery carrier, a number of groups of auxiliary positioning cameras are symmetrically arranged on both sides of the upper surface of the battery carrier, and a number of positioning grooves are arranged on the upper surface of the battery carrier and between the main positioning cameras and the auxiliary positioning cameras; the conveying mechanism comprises a transmission motor, the output end of the transmission motor is connected to a load-bearing transport member through a transmission belt transmission, and a number of load-bearing transport members are connected through a driven belt transmission; the feeding mechanism comprises a mounting seat, the upper end of the mounting seat is rotatably connected to a feeding platform, a moving guide rail is arranged on the upper side of the feeding platform, a moving slider is sleeved on the outer side of the moving guide rail, an electric cylinder is arranged on the side of the moving slider, and a feeding plate is rotatably arranged on the other end of the electric cylinder; a line scanning camera is arranged above the frame and parallel to the battery carrier.

[0007] Furthermore, the load-bearing transport member includes a transmission shaft, and the outer ring of the transmission shaft is sequentially provided with an inner guide wheel, a first transmission wheel and a second transmission wheel from the inside to the outside, the transmission belt is sleeved on the first transmission wheel, and the driven belt is respectively sleeved on the first transmission wheel and the second transmission wheel.

[0008] Furthermore, the transmission mechanism also includes a plurality of tension wheels, one of which is rotatably abutted against a side of the transmission belt, and the other tension wheels are rotatably abutted against a lower portion of the driven belt.

[0009] Furthermore, the battery carrier plate and the load-bearing transport member are connected by an inner guide wheel.

[0010] Furthermore, the main positioning camera and the auxiliary positioning camera are both UVW positioning cameras.

[0011] Furthermore, the conveying mechanism, the feeding mechanism, the main positioning camera, the auxiliary positioning camera and the line scanning camera are electrically connected to form a UVW alignment control platform.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model performs UVW mechanical calibration on the feeding mechanism synchronously through the main positioning camera and the auxiliary positioning camera arranged on the battery carrier plate, and the feeding mechanism adjusts the UVW compensation parameters in real time according to the data of the main positioning camera and the auxiliary positioning camera, determines the relative position between the feeding plate and the battery carrier plate, and places the HJT battery in the positioning groove of the battery carrier plate through the feeding mechanism. After re-loading, the UVW compensation parameter value is fine-tuned again through the detection of the line scanning camera and the observation of the operator to achieve no overlap, and the UVW compensation parameter value is saved to complete the calibration operation, after which the feeding plate can be loaded in place at one time, and the UVW compensation parameter value is continuously fine-tuned in real time during the subsequent loading process to ensure the accurate loading position, thereby solving the problem that the existing equipment has cumbersome steps when in use and needs to repeat the calibration operation after loading. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of an automatic feeding device for HJT battery PVD process based on carrier positioning;

[0015] Figure 2 A schematic diagram of a conveying mechanism of an automatic loading device for HJT battery PVD process based on carrier positioning;

[0016] Figure 3 It is a schematic diagram of the conveying mechanism A part of an automatic feeding device for HJT battery PVD process based on carrier positioning;

[0017] Figure 4 A schematic diagram of a carrier transport component of an automatic loading device for a HJT battery PVD process based on carrier positioning;

[0018] Figure 5 A schematic diagram of an automatic loading mechanism of an automatic loading device for HJT battery PVD process based on carrier positioning;

[0019] Figure 6 A schematic diagram of a positioning carrier of an automatic loading device for a HJT battery PVD process based on carrier positioning;

[0020] Description of the numbers in the figure:

[0021] 1. Frame; 2. Conveying mechanism; 201. Conveying motor; 202. Load-bearing transport member; 2021. Transmission shaft; 2022. Inner guide wheel; 2023. First transmission wheel; 2024. Second transmission wheel; 203. Tensioning wheel; 204 Transmission belt; 205. Driven belt; 3. Feeding mechanism; 301. Mounting seat; 302. Feeding platform; 303. Moving guide rail; 304. Moving slider; 305. Electric cylinder; 306. Feeding plate; 4. Battery carrier; 401. Main positioning camera; 402. Auxiliary positioning camera; 403. Positioning slot. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-Figure 6 , an automatic feeding device for HJT battery PVD process based on carrier positioning, comprising a pair of symmetrically arranged frames 1, a conveying mechanism 2 is installed on the frame 1, a feeding mechanism 3 is arranged in the center of one side of the frame 1, a battery carrier 4 is arranged in the middle of the conveying mechanism 2, a group of main positioning cameras 401 are arranged in the middle of the upper surface of the battery carrier 4, a plurality of groups of auxiliary positioning cameras 402 are symmetrically arranged on both sides of the upper surface of the battery carrier 4, and a plurality of positioning grooves 403 are arranged on the upper surface of the battery carrier 4 and between the main positioning camera 401 and the auxiliary positioning camera 402; the conveying mechanism 2 includes a transmission motor 201, The output end of the transmission motor 201 is connected to the load-bearing transport member 202 through a transmission belt 204, and a plurality of the load-bearing transport members 202 are connected to each other through a driven belt 205; the loading mechanism 3 includes a mounting seat 301, and the upper end of the mounting seat 301 is rotatably connected to a loading platform 302, a movable guide rail 303 is arranged on the upper side of the loading platform 302, a movable slider 304 is sleeved on the outer side of the movable guide rail 303, an electric cylinder 305 is arranged on the side of the movable slider 304, and a loading plate 306 is rotatably arranged on the other end of the electric cylinder 305; a line scanning camera 5 is arranged above the frame 1 and parallel to the battery carrier plate 4.

[0024] Among them, the specific grabbing process and principle of the loading plate 306 for the HJT battery belong to the existing technology and will not be repeated here.

[0025] Among them, the load-bearing transport member 202 includes a transmission shaft 2021, and the outer ring of the transmission shaft 2021 is sequentially provided with an inner guide wheel 2022, a first transmission wheel 2023 and a second transmission wheel 2024 from the inside to the outside, the transmission belt 204 is sleeved on the first transmission wheel 2023, and the driven belt 205 is respectively sleeved on the first transmission wheel 2023 and the second transmission wheel 2024.

[0026] The transmission mechanism 2 further includes a plurality of tension wheels 203 , one of which is rotatably abutted against a side of the transmission belt 204 , and the other tension wheels 203 are rotatably abutted against a lower portion of the driven belt 205 .

[0027] The battery carrier plate 4 and the carrying and transporting member 202 are connected by transmission via an inner guide wheel 2022 .

[0028] Wherein, the main positioning camera 401 and the auxiliary positioning camera 402 are both UVW positioning cameras.

[0029] The conveying mechanism 2 , the feeding mechanism 3 , the main positioning camera 401 , the auxiliary positioning camera 402 and the line scanning camera 5 are electrically connected to form a UVW alignment control platform.

[0030] Before loading, select a plate from the battery carrier 4 as a reference plate, put the reference plate online, and first perform UVW mechanical calibration on the loading mechanism 3. After debugging the reference plate for correct loading, perform software calibration on the main positioning camera 401 and the auxiliary positioning camera 402, and the calibration automatically identifies that the UVW compensation parameter value must be within the UVW compensation range of the loading mechanism 3. After loading again, through the detection of the line scan camera 5 and the observation of the operator, fine-tune the UVW compensation parameter value again to achieve no overlap, and save the UVW compensation parameter value to complete the calibration operation.

[0031] The UVW compensation range of the feeding mechanism 3 is determined by the rotation range of the feeding platform 302 , the movement range of the moving slider 304 on the moving guide rail 303 , the telescopic range of the electric cylinder 305 , and the rotation range of the feeding plate 306 .

[0032] When loading, the transmission motor 201 is started to drive the carrying transport member 202 through the transmission belt 204, and the inner guide wheel 2021 on the carrying transport member 202 drives the battery carrier 4 to move the battery carrier 4 to the working position. Then, the HJT battery is placed on the positioning groove 403 of the battery carrier 4 through the loading platform 302 of the loading mechanism 3, and then the transmission motor 201 can be started again to send the HJT battery into the PVD equipment for coating operation.

[0033] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. An automatic loading device for HJT battery PVD process based on carrier positioning, comprising a pair of symmetrically arranged frames (1), on which a conveying mechanism (2) is installed, characterized in that: A loading mechanism (3) is arranged in the center of one side of the frame (1), a battery carrier (4) is arranged in the middle of the conveying mechanism (2), a group of main positioning cameras (401) are arranged in the middle of the upper surface of the battery carrier (4), a plurality of groups of auxiliary positioning cameras (402) are symmetrically arranged on both sides of the upper surface of the battery carrier (4), and a plurality of positioning grooves (403) are arranged on the upper surface of the battery carrier (4) and located between the main positioning camera (401) and the auxiliary positioning camera (402); The transmission mechanism (2) comprises a transmission motor (201), the output end of the transmission motor (201) is connected to a load-bearing transport member (202) via a transmission belt (204), and a plurality of load-bearing transport members (202) are connected to each other via a driven belt (205); The feeding mechanism (3) comprises a mounting seat (301), the upper end of the mounting seat (301) is rotatably connected to a feeding platform (302), a movable guide rail (303) is arranged on the upper side of the feeding platform (302), a movable slider (304) is sleeved on the outer side of the movable guide rail (303), an electric cylinder (305) is arranged on the side of the movable slider (304), and a feeding plate (306) is rotatably arranged on the other end of the electric cylinder (305); A line scan camera (5) is arranged above the frame (1) and parallel to the battery carrier plate (4).

2. According to claim 1, an automatic feeding device for HJT battery PVD process based on carrier positioning is characterized in that: The load-bearing transport member (202) comprises a transmission shaft (2021), the outer ring of which is sequentially provided with an inner guide wheel (2022), a first transmission wheel (2023) and a second transmission wheel (2024) from the inside to the outside, the transmission belt (204) is sleeved on the first transmission wheel (2023), and the driven belt (205) is sleeved on the first transmission wheel (2023) and the second transmission wheel (2024) respectively.

3. According to claim 1, the automatic feeding device for HJT battery PVD process based on carrier positioning is characterized in that: The transmission mechanism (2) further comprises a plurality of tension wheels (203), one of which is rotatably abutted against the side of the transmission belt (204), and the other tension wheels (203) are rotatably abutted against the lower part of the driven belt (205).

4. According to claim 2, an automatic feeding device for HJT battery PVD process based on carrier positioning is characterized in that: The battery carrier (4) and the carrying and transporting member (202) are connected in transmission via an inner guide wheel (2022).

5. The automatic loading device for HJT battery PVD process based on carrier positioning according to claim 1 is characterized by: The main positioning camera (401) and the auxiliary positioning camera (402) are both UVW positioning cameras.

6. The automatic feeding device for HJT battery PVD process based on carrier positioning according to claim 1 is characterized by: The conveying mechanism (2), the feeding mechanism (3), the main positioning camera (401), the auxiliary positioning camera (402) and the line scanning camera (5) are electrically connected to form a UVW alignment control platform.

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