Laser scribing method for photovoltaic cell processing

Abstract

The invention discloses a laser scribing method for photovoltaic cell processing, and relates to the technical field of photovoltaic cell scribing. The laser scribing device comprises a switching supporting assembly, the switching supporting assembly comprises a switching supporting frame body, a first hollow scribing table and a second hollow scribing table are arranged in the switching supporting frame body in a sliding mode, the upper surface of the switching supporting frame body is fixedly connected with a laser scribing assembly, and the laser scribing assembly comprises a horizontal supporting frame body and a laser scribing head; scribing direction adjusting assemblies are arranged in the first hollow scribing table and the second hollow scribing table, and each scribing direction adjusting assembly comprises a direction adjusting supporting table. The positions of the first hollow scribing table and the second hollow scribing table are mutually alternated, the horizontal supporting frame body drives the laser scribing head to synchronously and horizontally move to perform scribing in the same direction, the direction adjusting supporting table moves upwards and rotates by 90 degrees, then scribing operation in the other direction is performed, scribing operation of photovoltaic cells in different directions is achieved, and the scribing efficiency of the photovoltaic cells in different directions is improved. And the operation efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of photovoltaic cell scribing, and in particular relates to a laser scribing method for photovoltaic cell processing. Background Art

[0002] Photovoltaic cells are a type of optoelectronic semiconductor wafer that uses sunlight to generate electricity directly. By laser scribing the photovoltaic cells and cutting the entire cell into smaller units, the current and line resistance inside the component can be reduced, thereby reducing power loss. The scribed cells can be used to improve the overall performance of the component through more optimized plate design and parallel connection. By precisely controlling the scribing process, waste can be minimized and the utilization rate of raw materials can be increased.

[0003] Common photovoltaic cell scribing includes equipment preparation, laser focusing, scribing execution, cutting completion and other links. However, in actual use, when the photovoltaic cell is placed on the operating table, when the photovoltaic cell is offset in the initial state and during the scribing process, it is easy to cause deviations in subsequent scribing operations. And the scribing operation can only be performed after the loading is completed, causing processing pauses and affecting operation efficiency. To this end, we provide a laser scribing method for photovoltaic cell processing to solve the above technical problems. Summary of the invention

[0004] The purpose of the present invention is to provide a laser scribing method for photovoltaic cell processing. By switching the specific structural design of the support component, the laser scribing component and the scribing direction adjustment component, the problem of photovoltaic cell position deviation and processing pause affecting the operating efficiency in the above technical background during the scribing operation is solved.

[0005] To solve the above technical problems, the present invention is implemented by the following technical solutions: The present invention is a laser scribing method for photovoltaic cell processing, comprising the following steps:

[0006] S01, placing the photovoltaic cell to be diced with its back side facing upward on the first hollow dicing table, and sliding the positioning and limiting plate on the first hollow dicing table horizontally until the positioning and limiting plate fits with the side of the photovoltaic cell to limit the position of the photovoltaic cell;

[0007] S02, control the switching transmission belt to move cyclically, so that the first hollow scribing table moves horizontally to just below the laser scribing assembly, and the second hollow scribing table on the switching support assembly moves downward and then upward during the horizontal movement until it moves to the loading position;

[0008] S03, control the two driving racks to move synchronously in opposite directions, and the transmission gear drives the driving gear to rotate, so that the horizontal support frame drives the laser scribing head to move horizontally to scribing the photovoltaic cells, and then control the horizontal movement distance of the two transmission vertical plates, and repeat the scribing operation until all scribing operations in the same direction are completed;

[0009] S04, control the first transmission wheel and the second transmission wheel to rotate synchronously, and drive the lifting and regulating slideway to move up and down through the lifting transmission column. During this process, the adjustment transmission column rotates. When the adjustment transmission column slides along the corresponding inclined adjustment slide groove and disengages, the adjustment support table completes the rotation of 90°, and then the laser scribing head moves back and forth to perform scribing operation in another direction. After the adjustment support table rotates 90°, the electromagnet is re-energized, and the photovoltaic cell is re-positioned through the reset spring and the positioning limit plate to ensure the scribing accuracy;

[0010] S05. During the scribing operation of the photovoltaic cell on the first hollow scribing table, the second hollow scribing table defines the position of the photovoltaic cell. After the scribing of the photovoltaic cell on the first hollow scribing table is completed, the first hollow scribing table and the second hollow scribing table are alternated, and the above operation is repeated.

[0011] The present invention is further configured as follows: the switching support assembly includes a switching support frame, the first hollow scribing table and the second hollow scribing table are both slidably arranged inside the switching support frame, and the upper surfaces of the first hollow scribing table and the second hollow scribing table are both provided with direction switching openings; a regulating support plate is fixedly connected to the bottom of the switching support frame, and a switching regulating slide is provided on the surface of the regulating support plate, and the switching regulating slide is composed of a first upper horizontal slide, a first inclined slide, a lower horizontal slide, a second inclined slide and a second upper horizontal slide which are connected in sequence.

[0012] The present invention is further configured such that two guide support uprights are symmetrically fixedly connected to the lower surface of the second hollow scribing table, one end of the two guide support uprights is fixedly connected to a support transmission block, a transmission cross column is fixedly connected between the two support transmission blocks, the transmission cross column is slidably matched with the switching control slide, and a switching transmission plate is slidably arranged between the two guide support uprights; a plurality of driving wheels are symmetrically rotatably connected to the two inner side walls of the switching support frame, the driving wheels are connected by a switching transmission belt, the first hollow scribing table is fixedly connected to the first transmission frame on the two relative side surfaces, the first transmission frame and the corresponding switching transmission belt are fixedly connected, the switching transmission plate is fixedly connected to the second transmission frame on the two relative side surfaces, and the second transmission frame and the corresponding switching transmission belt are fixedly connected.

[0013] The present invention is further configured such that a laser scribing assembly is fixedly connected to the upper surface of the switching support frame, and the laser scribing assembly includes a scribing support frame fixedly connected to the upper surface of the switching support frame, a guide slot is opened in the top of the scribing support frame, and a driving screw is rotatably connected between the two inner side walls of the guide slot, and two transmission vertical plates are symmetrically slidably arranged inside the guide slot, and the transmission vertical plates are threadedly matched with the driving screw; two transmission screws are symmetrically rotatably connected between the two transmission vertical plates, and two adjusting gears are symmetrically rotatably arranged on one side of one of the transmission vertical plates, the two adjusting gears are meshed with each other, and the adjusting gears are fixedly connected to the corresponding transmission screw, and a transmission adjustment strip is threadedly matched with the peripheral side of the transmission screw, and the transmission adjustment strip slides through an extension block and slides with the top of the scribing support frame, and a driving rack is fixedly connected to one side of the transmission adjustment strip.

[0014] The present invention is further configured as follows: two guide slide bars are symmetrically fixedly connected between the two transmission vertical plates, a scribing support frame is slidably arranged between the two guide slide bars, a transmission gear is rotatably connected to the upper surface of the scribing support frame, the transmission gear is located between the two driving racks, and the two driving racks and the transmission gear are meshed with each other; a driving gear is rotatably arranged on the top of the scribing support frame, the driving gear and the transmission gear are fixedly connected, a horizontal support frame is slidably arranged between the two opposite side surfaces of the scribing support frame, a transmission rack is fixedly connected to an inner side wall of the horizontal support frame, the driving gear and the transmission rack are meshed with each other, and a laser scribing head is fixedly connected to the lower surface of the horizontal support frame.

[0015] The present invention is further configured such that a scribing direction adjustment component is provided inside the first hollow scribing table and the second hollow scribing table, and the scribing direction adjustment component includes an adjustment support table slidably matched with the adjustment switching port, and a plurality of limit slide grooves are symmetrically provided on the upper surface of the adjustment support table, and the interval between two adjacent limit slide grooves is 90°; an electromagnet is fixedly connected to an inner side wall of the limit slide groove, a positioning limit plate is slidably provided inside the limit slide groove, a magnetic suction plate is fixedly connected to a side surface of the positioning limit plate, and a reset spring is fixedly connected between the other inner side wall of the limit slide groove and the positioning limit plate.

[0016] The present invention is further configured such that a lifting support column is fixedly connected to the lower surface of the adjustment support platform, and two limit strips are symmetrically fixedly connected to the side surfaces of the lifting support column. The lower surface of the lifting support column is rotatably connected to a lifting guide plate, and one side of the lifting guide plate is fixedly connected to a lifting and regulating slide, and the lifting and regulating slide is composed of a section of arc slide and a horizontal slide fixedly connected to the two ends of the arc slide. The first hollow scribing table and the second hollow scribing table are fixedly connected to the bottom of the inner portion, and the lifting guide plate is slidably matched with the lifting guide slide, and the first hollow scribing table and the second hollow scribing table are fixedly connected to the corresponding lifting guide plate with an elastic element, the first hollow scribing table and the second hollow scribing table are fixedly connected to the bottom of the inner portion, and a support frame is fixedly connected to the side of the support frame, and an adjustment driving ring is rotatably connected to the direction adjusting driving ring, and the adjustment driving ring is slidably matched with the two limit strips and the lifting support column.

[0017] The present invention is further configured as follows: the scribing adjustment component also includes a first extension support plate and a second extension support plate fixedly connected to the bottom of the first hollow scribing table and the second hollow scribing table, wherein one side of the first extension support plate is rotatably connected to the first transmission wheel, and the other side of the first extension support plate is rotatably provided with a transmission connecting rod, one end of the transmission connecting rod and the first transmission wheel are fixedly connected through the first rotating shaft, and one side of the transmission connecting rod is fixedly connected to a lifting transmission column, and the lifting transmission column and the lifting and regulating slideway are slidably matched; one side of the second extension support plate is rotatably connected to the second transmission wheel, and the first transmission wheel and the second transmission wheel are connected through an adjusting transmission belt, and the other side of the second extension support plate is rotatably provided with a transmission disk, and the circumferential side of the transmission disk is symmetrically fixedly connected with two adjustment transmission columns; the circumferential side of the adjustment drive ring is symmetrically provided with two inclined adjustment slide grooves, and the inclined adjustment slide grooves are arranged between the 90° area of ​​the circumferential side of the adjustment drive ring, the two inclined adjustment slide grooves are staggered with each other, and the adjustment transmission column and the corresponding inclined adjustment slide groove are slidably matched.

[0018] The present invention has the following beneficial effects: 1. The present invention sets a switching support assembly, and the switching transmission belt moves to drive the first hollow scribing table and the second hollow scribing table to move synchronously. Under the sliding cooperation of the transmission cross column and the switching control slide, the second hollow scribing table moves horizontally and then moves down and then up. The positions of the first hollow scribing table and the second hollow scribing table are alternated. When the first hollow scribing table is scribing, the second hollow scribing table is loading, thereby realizing synchronous operation of the two workstations, so that the loading and scribing operations are carried out synchronously, thereby improving the scribing efficiency.

[0019] 2. The present invention sets a laser scribing component and a scribing direction adjustment component. After the laser scribing head completes the scribing operation on the photovoltaic cell in the same direction, the direction adjustment support platform is moved up and rotated 90°, and the photovoltaic cell is adjusted 90°. Then the laser scribing head is used to perform the scribing operation in another direction on the adjusted photovoltaic cell, thereby realizing the scribing operations in two perpendicular directions of the photovoltaic cell in turn.

[0020] 3. The present invention sets a dicing direction adjustment component, places the photovoltaic cell to be diced with its back facing upward on the direction adjustment support table, disconnects the power supply of the electromagnet, and the magnetic attraction between the electromagnet and the magnetic plate disappears. Under the elastic recovery action of the reset spring, the positioning limit plate moves horizontally until it fits with the side of the photovoltaic cell, thereby limiting the position of the photovoltaic cell, keeping the photovoltaic cell in the center, and avoiding deviation during the dicing operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0022] Figure 1 The figure is a schematic diagram of the structure of a laser scribing method for photovoltaic cell processing.

[0023] Figure 2 It is a schematic diagram of the structure of the switching support assembly in the present invention.

[0024] Figure 3 It is a longitudinal structural cross-sectional view of the switching support assembly in the present invention.

[0025] Figure 4 Another longitudinal structural cross-sectional view of the switch support assembly in the present invention.

[0026] Figure 5 for Figure 3 Another angle diagram of the structure.

[0027] Figure 6 It is a schematic diagram of the structure of the laser scribing assembly in the present invention.

[0028] Figure 7 It is a partial structural schematic diagram of the laser scribing assembly in the present invention.

[0029] Figure 8 It is a longitudinal cross-sectional view of a part of the structure of the laser scribing assembly in the present invention.

[0030] Fig. 9 It is a structural schematic diagram of the scribing and direction adjustment component in the present invention.

[0031] Fig.10 It is a schematic diagram of the structure of the scribing and direction adjustment component in another angle of the present invention.

[0032] Fig.11 It is a partial structural schematic diagram of the scribing and direction adjustment component in the present invention.

[0033] Fig.12 for Fig.11 Longitudinal structural section view.

[0034] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0035] 1-Switch support assembly, 101-first hollow scribing table, 102-second hollow scribing table, 103-Switch support frame, 104-Direction switching port, 105-Regulation support plate, 106-Switch regulation slide, 107-Guide support vertical rod, 108-Transmission horizontal column, 109-Switch transmission plate, 110-Switch transmission belt, 111-First transmission frame, 112-Second transmission frame, 2-Laser scribing assembly, 201-Scibing support frame, 202-Guide slide, 203-Drive screw, 204-Transmission vertical plate, 205-Drive screw, 206-Adjustment gear, 207-Drive rack, 208-Guide slide, 209-Scibing Support frame, 210-transmission gear, 211-driving gear, 212-horizontal support frame, 213-transmission rack, 214-laser scribing head, 3-scribing direction adjustment component, 301-direction adjustment support platform, 302-limiting slide, 303-electromagnet, 304-positioning limit plate, 305-magnetic plate, 306-reset spring, 307-limiting strip, 308-lifting guide plate, 309-lifting and regulating slide, 310-lifting guide slide, 311-direction adjustment drive ring, 312-first transmission wheel, 313-transmission connecting rod, 314-lifting transmission column, 315-second transmission wheel, 316-direction adjustment transmission column, 317-tilted direction adjustment slide. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] For specific embodiment 1, please refer to Figure 1-12The present invention is a laser scribing method for photovoltaic cell processing. The laser scribing device used in the method includes a switching support assembly 1, and the switching support assembly 1 includes a first hollow scribing stage 101 and a second hollow scribing stage 102 that are slidably arranged. The laser scribing method includes the following steps:

[0038] S01, placing the photovoltaic cell to be diced with its back side facing upward on the first hollow dicing stage 101, and sliding the positioning and limiting plate 304 on the first hollow dicing stage 101 horizontally until the positioning and limiting plate 304 fits with the side of the photovoltaic cell to limit the position of the photovoltaic cell;

[0039] S02, control the switching transmission belt 110 to move cyclically, so that the first hollow scribing table 101 moves horizontally to just below the laser scribing assembly 2, and the second hollow scribing table 102 on the switching support assembly 1 moves downward and then upward during the horizontal movement until it moves to the loading position;

[0040] S03, control the two driving racks 207 to move synchronously in the opposite direction, and the transmission gear 210 drives the driving gear 211 to rotate, so that the horizontal support frame 212 drives the laser scribing head 214 to move horizontally to scribing the photovoltaic cells, and then control the horizontal movement distance of the two transmission vertical plates 204, and repeat the scribing operation until all scribing operations in the same direction are completed;

[0041] S04, control the first transmission wheel 312 and the second transmission wheel 315 to rotate synchronously, and drive the lifting and regulating slide 309 to move up and down through the lifting transmission column 314. During this process, the adjustment transmission column 316 rotates. When the adjustment transmission column 316 slides along the corresponding inclined adjustment slide groove 317 and disengages, the adjustment support table 301 completes the rotation of 90°, and then the laser scribing head 214 reciprocates to perform scribing operation in another direction. After the adjustment support table 301 rotates 90°, the electromagnet 303 is re-energized, and the photovoltaic cell is re-positioned through the reset spring 306 and the positioning limit plate 304 to ensure the scribing accuracy;

[0042] S05. During the scribing operation of the photovoltaic cells on the first hollow scribing stage 101, the second hollow scribing stage 102 defines the position of the photovoltaic cells. After the scribing of the photovoltaic cells on the first hollow scribing stage 101 is completed, the first hollow scribing stage 101 and the second hollow scribing stage 102 are alternated, and the above operation is repeated.

[0043] For specific embodiment 2, please refer to Figure 2-5On the basis of the specific embodiment 1, specifically, the switching support assembly 1 also includes a switching support frame 103, the first hollow scribing table 101 and the second hollow scribing table 102 are both slidably arranged inside the switching support frame 103, and in the initial state, the first hollow scribing table 101 and the second hollow scribing table 102 are respectively located at the two end positions inside the switching support frame 103, the initial state position of the first hollow scribing table 101 corresponds to the loading station, and the initial state position of the second hollow scribing table 102 corresponds to the scribing station, and the upper surfaces of the first hollow scribing table 101 and the second hollow scribing table 102 are both provided with a switching opening 104; a regulating support plate 105 is fixedly connected to the bottom of the switching support frame 103, and a switching regulating slide 106 is provided on the surface of the regulating support plate 105, and the switching regulating slide 106 is composed of a first upper horizontal slide, a first inclined slide, a lower horizontal slide, a second inclined slide and a second upper horizontal slide connected in sequence.

[0044] Furthermore, two guide support uprights 107 are symmetrically fixedly connected to the lower surface of the second hollow dicing table 102, one end of the two guide support uprights 107 is fixedly connected to a support transmission block, a transmission cross column 108 is fixedly connected between the two support transmission blocks, and the transmission cross column 108 is slidably matched with the switching and regulating slideway 106. The transmission cross column 108 is driven to move horizontally, upward and downward through the sliding cooperation between the transmission cross column 108 and the switching and regulating slideway 106, and a switching transmission plate 109 is slidably arranged between the two guide support uprights 107; a plurality of driving wheels are symmetrically connected to the two inner side walls of the switching support frame 103 for rotation, a driving source is fixedly installed on one side of the switching support frame 103, and a fixed connection between the output shaft of the driving source and the driving wheel The driving wheels are connected by a switching transmission belt 110, and the first hollow dicing table 101 is fixedly connected with a first transmission frame 111 on both opposite sides, and the first transmission frame 111 is fixedly connected to the corresponding switching transmission belt 110, and the switching transmission plate 109 is fixedly connected with a second transmission frame 112 on both opposite sides, and the second transmission frame 112 is fixedly connected to the corresponding switching transmission belt 110, and there is a certain distance between the parts of the switching transmission belt 110 on both sides of the driving wheel, the first transmission frame 111 is fixedly connected to the part of the switching transmission belt 110 on the upper side of the driving wheel, and the second transmission frame 112 is fixedly connected to the part of the switching transmission belt 110 on the lower side of the driving wheel.

[0045] The operation process of this embodiment is as follows: when the photovoltaic cell to be diced is placed with its back side facing upward on the first hollow scribing table 101 and the position is defined, the driving source is started to drive the corresponding driving wheel to rotate, and under the connection action of the switching transmission belt 110, the switching transmission belt 110 moves. Since the first hollow scribing table 101 is fixedly connected to the switching transmission belt 110 through the first transmission frame 111, during the movement of the switching transmission belt 110, the first hollow scribing table 101 moves synchronously with the switching transmission belt 110 and moves toward the direction of the laser scribing assembly 2.

[0046] In this process, since the switching transmission plate 109 is fixedly connected to the switching transmission belt 110 through the second transmission frame 112, during the movement of the switching transmission belt 110, the switching transmission plate 109 moves synchronously with the switching transmission belt 110, and under the connection action of the guide support vertical rod 107, the second hollow dicing table 102 and the transmission cross column 108 move synchronously. Under the sliding cooperation action of the transmission cross column 108 and the switching control slide 106, when the transmission cross column 108 slides along the first upper horizontal slide to the intersection of the first inclined slide and the first upper horizontal slide, with the movement of the switching transmission plate 109, the transmission cross column 108 moves along the first inclined slide. The inclined slide moves downward, and under the connection action of the supporting transmission block, the two guide support vertical rods 107 slide downward synchronously along the surface of the switching transmission plate 109. Under the connection action of the guide support vertical rods 107, the second hollow scribing table 102 moves downward synchronously. When the transmission cross column 108 moves to the lower horizontal slide, the second hollow scribing table 102 is located below the first hollow scribing table 101. As the transmission cross column 108 slides along the lower horizontal slide, the second hollow scribing table 102 and the first hollow scribing table 101 first approach each other. When the transmission cross column 108 moves to the middle position of the lower horizontal slide, the second hollow scribing table 102 is located between the first hollow scribing table 101 and the second hollow scribing table 102. As the transmission crossbar 108 continues to slide along the lower horizontal slide, the second hollow scribing table 102 and the first hollow scribing table 101 are intertwined and move away from each other. When the transmission crossbar 108 moves to the intersection of the lower horizontal slide and the second inclined slide, the second hollow scribing table 102 is completely misaligned with the first hollow scribing table 101. As the switching transmission plate 109 moves, the transmission crossbar 108 moves along the second inclined slide, and through the connection of the guide support vertical rod 107, the second hollow scribing table 102 is driven to move upward. As the transmission crossbar 108 moves, when the transmission crossbar 108 moves to the end of the second upper horizontal slide, the second hollow scribing table 102 is moved upward. The empty scribing table 102 is synchronously moved to the loading station (the position of the first hollow scribing table 101 in the initial state), and at the same time, the first hollow scribing table 101 is moved to directly below the laser scribing assembly 2 (the position of the second hollow scribing table 102 in the initial state), the first hollow scribing table 101 performs the scribing operation, and the second hollow scribing table 102 performs the loading; when the photovoltaic cell on the first hollow scribing table 101 completes the scribing operation, the switching transmission belt 110 moves in the opposite direction, the first hollow scribing table 101 and the second hollow scribing table 102 exchange positions again, and then the scribing operation is performed on the photovoltaic cell on the second hollow scribing table 102, and the operation is repeated.

[0047] For specific embodiment 3, please refer to Figure 6-8On the basis of the first and second specific embodiments, specifically, the upper surface of the switching support frame 103 is fixedly connected with a laser scribing assembly 2, and the laser scribing assembly 2 includes a scribing support frame 201 fixedly connected to the upper surface of the switching support frame 103, and a guide slot 202 is provided at the top of the scribing support frame 201, and a driving screw 203 is rotatably connected between the two inner side walls of the guide slot 202, and a first driving motor is fixedly installed on one side of the scribing support frame 201, and the output shaft of the first driving motor is fixedly connected to the driving screw 203, and two transmission vertical plates 204 are symmetrically slidably arranged inside the guide slot 202, and the transmission vertical plates 204 are threadedly matched with the driving screw 203; the two transmission vertical plates 204 are symmetrically rotatably connected There are two transmission screws 205, and a second driving motor is fixedly installed on one side of one transmission vertical plate 204, and the output shaft of the second driving motor is fixedly connected to one of the transmission screws 205. Two adjusting gears 206 are symmetrically arranged on one side of one transmission vertical plate 204 for rotation. The two adjusting gears 206 are meshed with each other, and the adjusting gears 206 are fixedly connected to the corresponding transmission screws 205. A transmission adjustment strip is threadedly fitted on the side surface of the transmission screw 205, and the transmission adjustment strip slides with the top of the dicing support frame 201 through an extension block, and a driving rack 207 is fixedly connected to one side of the transmission adjustment strip, and the transmission adjustment strip slides with the top of the dicing support frame 201 through an extension block, so as to adjust the displacement of the driving rack 207.

[0048] Furthermore, two guide slide bars 208 are symmetrically fixedly connected between the two transmission vertical plates 204, a scribing support frame 209 is slidably arranged between the two guide slide bars 208, a transmission gear 210 is rotatably connected to the upper surface of the scribing support frame 209, the transmission gear 210 is located between the two driving racks 207, and the two driving racks 207 and the transmission gear 210 are meshed with each other; a driving gear 211 is rotatably arranged on the top of the scribing support frame 209, the driving gear 211 is fixedly connected to the transmission gear 210, a horizontal support frame 212 is slidably arranged between the two opposite side surfaces of the scribing support frame 209, a transmission rack 213 is fixedly connected to an inner side wall of the horizontal support frame 212, the driving gear 211 and the transmission rack 213 are meshed with each other, and a laser scribing head 214 is fixedly connected to the lower surface of the horizontal support frame 212.

[0049] The operation process of this embodiment is as follows: when the first hollow scribing table 101 and the second hollow scribing table 102 drive the photovoltaic cell to move to the bottom of the laser scribing assembly 2, the second driving motor is started to drive the corresponding transmission screw 205 to rotate, and the corresponding adjustment gear 206 rotates synchronously. Under the meshing action of the two adjustment gears 206, the two adjustment gears 206 rotate synchronously in the opposite direction, and then the two transmission screws 205 rotate synchronously in the opposite direction. Under the thread cooperation action of the transmission screw 205 and the corresponding transmission adjustment strip, the two transmission adjustment strips drive The driving rack 207 moves synchronously in the opposite direction, and the meshing action of the driving rack 207 and the transmission gear 210 causes the transmission gear 210 to rotate, thereby driving the driving gear 211 to rotate synchronously, and the meshing action of the driving gear 211 and the transmission rack 213 causes the transmission rack 213 to move and drive the horizontal support frame 212 to move synchronously, and the laser scribing head 214 moves synchronously with the horizontal support frame 212 and performs a scribing operation on the photovoltaic cell until the laser scribing head 214 is away from the photovoltaic cell, and a scribing operation is completed in sequence.

[0050] After the laser scribing head 214 completes the scribing operations in sequence, the first drive motor is started to drive the drive screw 203 to rotate. Under the threaded cooperation between the drive screw 203 and the two transmission vertical plates 204, the transmission vertical plates 204 slide horizontally along the guide slide groove 202 for a distance, and the laser scribing head 214 moves one end distance synchronously. The corresponding drive screw 205 is driven by the second drive motor to rotate in the opposite direction. The two drive racks 207 drive the drive racks 207 to move synchronously, so that the transmission gear 210 and the drive gear 211 rotate in the opposite direction, and the horizontal support frame 212 moves horizontally in the opposite direction, and the laser scribing head 214 performs the next scribing operation: repeat the above operation until the scribing operation in the same direction of the photovoltaic cell is completed.

[0051] For specific example 4, please refer to Figure 9-12On the basis of the first, second and third embodiments, specifically, the first hollow scribing table 101 and the second hollow scribing table 102 are both provided with a scribing direction adjustment component 3, the scribing direction adjustment component 3 includes a direction adjustment support table 301 that is slidably matched with the direction adjustment switch port 104, and a plurality of limiting slide grooves 302 are symmetrically provided on the upper surface of the direction adjustment support table 301, and the interval between two adjacent limiting slide grooves 302 is 90°, and the limiting slide grooves 302 are distributed in a cross shape; a limiting slide groove 302 is fixedly connected to an inner wall thereof The electromagnet 303 and the limiting slide groove 302 are internally provided with a positioning limiting plate 304, which moves synchronously to limit the position of the photovoltaic cell and keeps the photovoltaic cell at the center of the adjustment support platform 301. A magnetic plate 305 is fixedly connected to one side of the positioning limiting plate 304, and a return spring 306 is fixedly connected between the other inner wall of the limiting slide groove 302 and the positioning limiting plate 304. In the initial state, the electromagnet 303 is energized and magnetically attracted to the magnetic plate 305, and the return spring 306 is in a stretched state.

[0052] Furthermore, a lifting support column is fixedly connected to the lower surface of the adjustment support platform 301, and two limit strips 307 are symmetrically fixedly connected to the side surfaces of the lifting support column. A lifting guide plate 308 is rotatably connected to the lower surface of the lifting support column, and a lifting and regulating slide 309 is fixedly connected to one side of the lifting guide plate 308. The lifting and regulating slide 309 is composed of a section of an arc slide and a horizontal slide fixedly connected to both ends of the arc slide. The first hollow scribing table 101 and the second hollow scribing table 102 are fixedly connected at the bottom. There is a lifting guide slide 310, and the lifting guide plate 308 is slidably matched with the lifting guide slide 310, and the first hollow scribing table 101 and the second hollow scribing table 102 are fixedly connected to the corresponding lifting guide plate 308 with an elastic element, and the bottom of the first hollow scribing table 101 and the second hollow scribing table 102 are fixedly connected to a support frame, and one side of the support frame is rotatably connected to a direction adjustment drive ring 311, and the direction adjustment drive ring 311 is slidably matched with the two limit bars 307 and the lifting support column.

[0053] Furthermore, the dicing direction adjustment component 3 also includes a first extension support plate and a second extension support plate fixedly connected to the bottom of the first hollow dicing table 101 and the second hollow dicing table 102, one side of the first extension support plate is rotatably connected to the first transmission wheel 312, the first hollow dicing table 101 and the second hollow dicing table 102 are both fixedly installed with a third drive motor at the bottom through a motor seat, the output shaft of the third drive motor is fixedly connected to the first transmission wheel 312, and the other side of the first extension support plate is rotatably provided with a transmission connecting rod 313, one end of the transmission connecting rod 313 is fixedly connected to the first transmission wheel 312 through a first rotating shaft, and one side of the transmission connecting rod 313 is fixedly connected to a lifting transmission column 314, and the lifting transmission column 314 slides with the lifting and regulating slide 309; one side of the second extension support plate is rotatably connected to the second transmission wheel 315, and the first transmission wheel 312 is rotatably matched with the first transmission wheel 312. The two transmission wheels 315 are connected by adjusting the transmission belt, and a transmission disc is rotatably arranged on the other side of the second extended support plate, and two adjustment transmission posts 316 are symmetrically fixedly connected to the circumferential side of the transmission disc; two inclined adjustment slots 317 are symmetrically arranged on the circumferential side of the adjustment drive ring 311, and the inclined adjustment slots 317 are arranged between the 90° areas of the circumferential side of the adjustment drive ring 311. The two inclined adjustment slots 317 are staggered with each other, and the adjustment transmission post 316 and the corresponding inclined adjustment slots 317 are slidably matched. When the adjustment transmission post 316 and the corresponding inclined adjustment slots 317 are slidably matched, as the adjustment transmission post 316 moves, the adjustment transmission post 316 pushes the inner wall of the inclined adjustment slot 317, so that the adjustment drive ring 311 is forced to rotate, and when the adjustment transmission post 316 just disengages from the corresponding inclined adjustment slot 317, the adjustment drive ring 311 completes a 90° rotation.

[0054] The operation process of this embodiment is: place the scribed photovoltaic cell with its back facing upward on the adjustment support platform 301, disconnect the power supply of the electromagnet 303, and the magnetic attraction between the electromagnet 303 and the magnetic attraction plate 305 disappears. Under the elastic recovery action of the reset spring 306, the positioning limit plate 304 slides along the corresponding limit slide groove 302 until the positioning limit plate 304 is in contact with the side of the photovoltaic cell, so that the position of the photovoltaic cell is limited and located at the center of the adjustment support platform 301.

[0055] After the laser scribing head 214 completes the scribing operation on the photovoltaic cells in the same direction, the third driving motor is started to drive the first transmission wheel 312 to rotate. Under the connection effect of the adjusting transmission belt, the second transmission wheel 315 is synchronously rotated; the first transmission wheel 312 is rotated to drive the transmission connecting rod 313 to rotate synchronously. In this process, the second transmission wheel 315 rotates and drives the adjustment transmission column 316 to rotate synchronously through the transmission disc. The transmission connecting rod 313 drives the lifting transmission column 314 to move synchronously. Under the sliding cooperation effect of the lifting transmission column 314 and the lifting and regulating slide 309, the lifting transmission column 314 slides from the middle position of the arc slide to the horizontal slide direction. The lifting transmission column 314 slides along the arc slide, and the external force applied by the lifting transmission column 314 to the lifting and regulating slide 309 is weakened. Under the elastic recovery effect of the elastic element, the lifting and regulating slide 309 drives the lifting guide plate 308 to move upward, thereby making the lifting support column drive the adjustment support platform 301 to move upward away from the adjustment switching port 104. When the lifting transmission column 314 moves to the intersection of the arc slide and the horizontal slide, with the rotation of the transmission connecting rod 313, the lifting transmission column 314 moves to the inside of the horizontal slide, and the adjustment support platform 301 continues to move upward. When the transmission connecting rod 313 completes a 90° rotation, the lifting transmission column 314 moves to the position where the horizontal slide is away from the arc slide. With the continuous rotation of the transmission connecting rod 313, the lifting transmission column 314 moves in the opposite direction along the horizontal slide to a position close to the arc slide, and the adjustment support platform 301 continues to move upward. When the lifting transmission column 314 moves to the intersection of the horizontal slide and the arc slide, the adjustment transmission column 316 contacts the end of the corresponding inclined adjustment slide groove 317.

[0056] The lifting and lowering parts 314 and 315 are in the middle of the arc slideway, and the lifting and lowering parts 314 are in the middle of the arc slideway.

[0057] After the slicing is completed, the first transmission wheel 312 is controlled to continue to rotate, the transmission connecting rod 313 rotates, and the lifting transmission column 314 slides from the arc slide to the inside of another horizontal slide. As the lifting transmission column 314 moves, the lifting transmission column 314 presses down the lifting and regulating slide 309, and the lifting support column drives the adjustment support platform 301 to move downward. At the same time, under the sliding cooperation of another adjustment transmission column 316 and the corresponding inclined adjustment slide groove 317, the adjustment support platform 301 rotates 90° in the opposite direction to return to the original state. As the lifting transmission column 314 presses down the lifting and regulating slide 309, the adjustment support platform 301 moves down to the inside of the adjustment switching port 104.

[0058] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0059] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A laser scribing method for photovoltaic cell processing, characterized in that: The steps include: S01, placing the photovoltaic cell to be diced with its back side facing upward on the first hollow dicing table (101) of the switching support assembly (1), and sliding the positioning and limiting plate (304) on the first hollow dicing table (101) horizontally until the positioning and limiting plate (304) is in contact with the side surface of the photovoltaic cell, thereby limiting the position of the photovoltaic cell; S02, controlling the switching transmission belt (110) to move cyclically, so that the first hollow scribing table (101) moves horizontally to directly below the laser scribing assembly (2), and the second hollow scribing table (102) on the switching support assembly (1) moves downward and then upward during the horizontal movement until it moves to the loading position; S03, controlling the two driving racks (207) to move synchronously in opposite directions, and the transmission gear (210) drives the driving gear (211) to rotate, so that the horizontal support frame (212) drives the laser scribing head (214) to move horizontally to perform a scribing operation on the photovoltaic cell, and then controlling the horizontal moving distance of the two transmission vertical plates (204), repeating the operation to perform the scribing operation until all scribing operations in the same direction are completed; S04, controlling the first transmission wheel (312) and the second transmission wheel (315) to rotate synchronously, and driving the lifting and regulating slideway (309) to move up and down through the lifting transmission column (314). During this process, the adjustment transmission column (316) rotates. When the adjustment transmission column (316) slides along the corresponding inclined adjustment slide groove (317) and disengages, the adjustment support platform (301) completes the rotation of 90°, and then the laser scribing head (214) reciprocates to perform scribing operation in another direction; after the adjustment support platform (301) rotates 90°, the electromagnet (303) is re-energized, and the photovoltaic cell is re-positioned through the reset spring (306) and the positioning limiting plate (304) to ensure the scribing accuracy; S05. During the scribing operation of the photovoltaic cell on the first hollow scribing stage (101), the second hollow scribing stage (102) defines the position of the photovoltaic cell. After the scribing of the photovoltaic cell on the first hollow scribing stage (101) is completed, the first hollow scribing stage (101) and the second hollow scribing stage (102) are alternated, and the above operation is repeated.

2. A laser scribing method for photovoltaic cell processing according to claim 1, characterized in that: The switching support assembly (1) comprises a switching support frame (103), the first hollow scribing table (101) and the second hollow scribing table (102) are both slidably arranged inside the switching support frame (103), and the upper surfaces of the first hollow scribing table (101) and the second hollow scribing table (102) are both provided with a direction switching opening (104); A regulating support plate (105) is fixedly connected to the bottom of the switching support frame (103); a switching regulating slideway (106) is provided on the surface of the regulating support plate (105); the switching regulating slideway (106) is composed of a first upper horizontal slideway, a first inclined slideway, a lower horizontal slideway, a second inclined slideway and a second upper horizontal slideway connected in sequence.

3. A laser scribing method for photovoltaic cell processing according to claim 2, characterized in that: The lower surface of the second hollow scribing table (102) is symmetrically fixedly connected with two guide support uprights (107), one end of the two guide support uprights (107) is fixedly connected with a support transmission block, a transmission cross column (108) is fixedly connected between the two support transmission blocks, the transmission cross column (108) is slidably matched with the switching control slideway (106), and a switching transmission plate (109) is slidably arranged between the two guide support uprights (107); The switching support frame (103) is symmetrically rotatably connected to a plurality of driving wheels on the two inner side walls, and the driving wheels are connected via a switching transmission belt (110). The first hollow dicing table (101) is fixedly connected to the first transmission frame (111) on the two opposite side surfaces, and the first transmission frame (111) is fixedly connected to the corresponding switching transmission belt (110). The switching transmission plate (109) is fixedly connected to the second transmission frame (112) on the two opposite side surfaces, and the second transmission frame (112) is fixedly connected to the corresponding switching transmission belt (110).

4. A laser scribing method for photovoltaic cell processing according to claim 3, characterized in that: The upper surface of the switching support frame (103) is fixedly connected with a laser scribing assembly (2), and the laser scribing assembly (2) comprises a scribing support frame (201) fixedly connected to the upper surface of the switching support frame (103); a guide slot (202) is provided at the top of the scribing support frame (201); a driving screw (203) is rotatably connected between two inner side walls of the guide slot (202); two transmission vertical plates (204) are symmetrically slidably arranged inside the guide slot (202); and the transmission vertical plates (204) are threadedly matched with the driving screw (203); Two transmission screws (205) are symmetrically rotatably connected between the two transmission vertical plates (204), and two adjustment gears (206) are symmetrically rotatably arranged on one side of one of the transmission vertical plates (204). The two adjustment gears (206) are meshed with each other, and the adjustment gears (206) are fixedly connected to the corresponding transmission screws (205). A transmission adjustment bar is threadedly engaged with the side surface of the transmission screw (205), and the transmission adjustment bar is slidably engaged with the top of the dicing support frame (201) through an extension block, and a driving rack (207) is fixedly connected to one side of the transmission adjustment bar.

5. A laser scribing method for photovoltaic cell processing according to claim 4, characterized in that: Two guide slide bars (208) are symmetrically fixedly connected between the two transmission vertical plates (204); a slicing support frame (209) is slidably arranged between the two guide slide bars (208); a transmission gear (210) is rotatably connected to the upper surface of the slicing support frame (209); the transmission gear (210) is located between the two driving racks (207), and the two driving racks (207) and the transmission gear (210) are meshed with each other; A driving gear (211) is rotatably arranged at the top of the slicing support frame (209), and the driving gear (211) is fixedly connected to the transmission gear (210). A horizontal supporting frame (212) is slidably arranged between two opposite side surfaces of the slicing support frame (209), and a transmission rack (213) is fixedly connected to an inner side wall of the horizontal supporting frame (212), and the driving gear (211) and the transmission rack (213) are meshed with each other, and a laser slicing head (214) is fixedly connected to the lower surface of the horizontal supporting frame (212).

6. A laser scribing method for photovoltaic cell processing according to claim 5, characterized in that: The first hollow scribing table (101) and the second hollow scribing table (102) are both provided with a scribing direction adjustment component (3), the scribing direction adjustment component (3) comprising a direction adjustment support table (301) slidably matched with the direction adjustment switch port (104), a plurality of limiting slide grooves (302) are symmetrically provided on the upper surface of the direction adjustment support table (301), and the interval between two adjacent limiting slide grooves (302) is 90°; An electromagnet (303) is fixedly connected to an inner side wall of the limiting slide groove (302), a positioning limiting plate (304) is slidably arranged inside the limiting slide groove (302), a magnetic attraction plate (305) is fixedly connected to a side of the positioning limiting plate (304), and a return spring (306) is fixedly connected between the other inner side wall of the limiting slide groove (302) and the positioning limiting plate (304).

7. A laser scribing method for photovoltaic cell processing according to claim 6, characterized in that: The lower surface of the direction adjustment support platform (301) is fixedly connected with a lifting support column, and two limit strips (307) are symmetrically fixedly connected to the side surfaces of the lifting support column. The lower surface of the lifting support column is rotatably connected with a lifting guide plate (308), and one side of the lifting guide plate (308) is fixedly connected with a lifting and regulating slideway (309), and the lifting and regulating slideway (309) is composed of a section of an arc slideway and horizontal slideways fixedly connected to both ends of the arc slideway; The first hollow scribing table (101) and the second hollow scribing table (102) are fixedly connected to a lifting guide slideway (310) at the bottom thereof, the lifting guide plate (308) and the lifting guide slideway (310) are slidably matched, and elastic elements are fixedly connected between the first hollow scribing table (101) and the second hollow scribing table (102) and the corresponding lifting guide plates (308), the first hollow scribing table (101) and the second hollow scribing table (102) are fixedly connected to a support frame at the bottom thereof, and a side surface of the support frame is rotatably connected to a direction adjustment drive ring (311), and the direction adjustment drive ring (311) is slidably matched with two limit bars (307) and the lifting support column.

8. A laser scribing method for photovoltaic cell processing according to claim 7, characterized in that: The dicing direction adjustment component (3) also includes a first extension support plate and a second extension support plate fixedly connected to the inner bottom of the first hollow dicing table (101) and the second hollow dicing table (102); a first transmission wheel (312) is rotatably connected to one side of the first extension support plate; a transmission connecting rod (313) is rotatably provided on the other side of the first extension support plate; one end of the transmission connecting rod (313) is fixedly connected to the first transmission wheel (312) via a first rotating shaft; a lifting transmission column (314) is fixedly connected to one side of the transmission connecting rod (313); the lifting transmission column (314) is slidably matched with the lifting and regulating slideway (309).

9. A laser scribing method for photovoltaic cell processing according to claim 8, characterized in that: A second transmission wheel (315) is rotatably connected to one side of the second extension support plate, the first transmission wheel (312) and the second transmission wheel (315) are connected via an adjustable transmission belt, and a transmission disc is rotatably provided on the other side of the second extension support plate, and two direction-adjusting transmission columns (316) are symmetrically fixedly connected to the circumferential side of the transmission disc; Two inclined direction adjustment slots (317) are symmetrically arranged on the peripheral side surface of the direction adjustment drive ring (311); the inclined direction adjustment slots (317) are arranged between 90° areas on the peripheral side surface of the direction adjustment drive ring (311); the two inclined direction adjustment slots (317) are staggered with each other, and the direction adjustment transmission column (316) is slidably matched with the corresponding inclined direction adjustment slots (317).

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