Laser scribing device for thin-film solar cell

Abstract

The invention discloses a laser scribing device for a thin-film solar cell. The laser scribing device for the thin-film solar cell comprises a shield assembly, a driving device, a light path assembly, a laser head device and a jig assembly, according to the scheme, the laser scribing device for the thin-film solar cell is used for processing the cell, a thinner wire slot can be generated, the damage is smaller, the dead zone area is reduced, and the conversion efficiency of the cell is further improved. And moreover, the compatible remodeling production requirements of products in a specified size range can be met by replacing or adjusting a tool and a clamp which are in contact with the battery and switching a program.

Description

Technical Field

[0001] The present application relates to the technical field of battery processing, and in particular to a laser scribing device for thin-film solar cells. Background Art

[0002] Perovskite materials are known as "new generation solar cell materials" with a theoretical maximum energy conversion efficiency of up to 33%, which is higher than the first-generation crystalline silicon cells and the second-generation thin-film cells. In addition, their manufacturing process is simple and the cost is low. In the production process of perovskite solar cells, the larger the effective power generation area in each sub-cell structure and the smaller the dead zone, the higher the efficiency of converting solar energy into electrical energy.

[0003] However, existing processing equipment still cannot meet the processing requirements of batteries and lacks compatibility with products of different sizes. Summary of the invention

[0004] The present application aims to solve at least one of the above-mentioned technical problems by providing a laser scribing device for thin-film solar cells to ensure that the battery processing requirements and the compatibility requirements of the processed products are met.

[0005] The present application provides a laser scribing device for thin-film solar cells, the laser scribing device for thin-film solar cells comprising: a shield assembly, a driving device, an optical path assembly, a laser head device and a fixture assembly; the shield assembly comprises a frame shield; the frame shield is fixedly connected to the driving device, the driving device is fixedly connected to the optical path assembly and the fixture assembly, and the optical path assembly is fixedly connected to the laser head device;

[0006] The optical path component includes a laser and a laser transmission device; the laser is fixedly mounted on the driving device; the laser transmission device is connected to the laser; the laser emitted by the laser is transmitted to the laser head device through the laser transmission device;

[0007] The laser transmission device at least comprises a first transmission device and a second transmission device, wherein the first transmission device and the second transmission device are arranged vertically;

[0008] The driving device includes a driving base, a driving column, a driving beam, a Y-axis moving device and an X-axis moving device;

[0009] The laser head device comprises a Z-axis moving device, a telescopic device and a fixed body; the fixed body is provided with a photographing recognition device, a distance measuring device and a laser head; the telescopic device comprises a laser head light reflecting device and a telescopic channel, and the laser head light reflecting device is connected to the telescopic channel; the fixed body is fixedly mounted on the Z-axis moving device; the Z-axis moving device is fixedly connected to the X-axis moving device;

[0010] The fixture assembly includes a positioning assembly, a positioning block, a fixture base, a joint and an adsorption cylinder; the positioning block is fixedly mounted on the fixture base, the joint and the positioning assembly are fixedly mounted on the side of the fixture base; the fixture base is provided with a plurality of adsorption holes, the adsorption holes are connected to the joint, and the joint is connected to the adsorption cylinder; the positioning assembly includes a push rod moving device, a push rod, and a positioning base, the push rod moving device is fixedly mounted on the positioning base, and the push rod moving device is connected to the push rod. .

[0011] Optionally, the push rod moving device is a cylinder, the positioning assembly further includes a push rod fixing plate, the cylinder is connected to the push rod fixing plate, and the push rod is fixedly mounted on the push rod fixing plate.

[0012] Optionally, the driving device also includes a wire trough; the driving column is fixedly mounted on the driving base, the driving beam is fixedly mounted on the driving column, the Y-axis moving device is fixedly mounted on the driving base, the X-axis moving device is fixedly mounted on the driving beam, and the wire trough is mounted on the driving column.

[0013] Furthermore, the Y-axis moving device includes a Y-axis linear motor assembly and a Y-axis drag chain; the X-axis moving device includes an X-axis linear motor assembly and an X-axis drag chain.

[0014] Optionally, the first transmission device includes a first laser adjustment device, a first optical channel, a first telescopic channel device, and a first reflecting device. The laser is connected to the first laser adjustment device, the first laser adjustment device is connected to the first reflecting device, the first reflecting device is connected to the first optical channel, the first optical channel is connected to another first reflecting device, and another first reflecting device is connected to the first telescopic channel device.

[0015] Furthermore, the first transmission device is in a "C" shape.

[0016] Optionally, the shield assembly further includes a body shield and an optical path shield; the optical path shield is used to protect the optical path assembly; the body shield is provided with a connecting tube, and the connecting tube passes through the body shield and the optical path shield.

[0017] Furthermore, the laser scribing device for thin-film solar cells further comprises an auxiliary channel, a refrigerator and a fume purifier; the refrigerator and the fume purifier have corresponding connecting pipes, and the connecting pipes are connected to the connecting pipe through the auxiliary channel.

[0018] Furthermore, the laser head device also includes a smoke purification joint and a purification pipe; the smoke purification joint is connected to the purification pipe, the purification pipe is connected to the connecting pipe, and the smoke purification joint is connected to the refrigerator through the purification pipe corresponding to the refrigerator.

[0019] In the laser scribing device for thin-film solar cells of the present application, by processing the cells with the laser scribing device for thin-film solar cells, thinner line grooves, smaller damage, and reduced dead zone area can be produced, thereby improving the cell conversion efficiency. Moreover, by replacing or adjusting the tooling and fixtures in contact with the cells, and switching the program, the compatible conversion production requirements of products within the specified size range can be met. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of a laser scribing device for thin-film solar cells provided in the present application;

[0021] Figure 2 It is a schematic diagram of the internal structure of a laser scribing device for thin-film solar cells provided in the present application;

[0022] Figure 3 yes Figure 2 An exploded schematic diagram of a laser scribing device for thin-film solar cells is shown;

[0023] Figure 4 It is a schematic diagram of the structure of the driving device provided by the present application;

[0024] Figure 5 is a schematic diagram of the internal structure of the driving device provided by the present application;

[0025] Figure 6 yes Figure 5 The enlarged schematic diagram of point A in the middle;

[0026] Figure 7 yes Figure 5 The enlarged schematic diagram of point B in the middle;

[0027] Figure 8 It is a structural schematic diagram of the optical path component provided by the present application;

[0028] Fig. 9 It is a schematic diagram of the structure of the laser transmission device provided by the present application;

[0029] Fig.10 It is a schematic diagram of the structure of the laser head device provided by the present application;

[0030] Fig.11 yes Fig.10 An exploded schematic diagram of the laser head device shown;

[0031] Fig.12is an exploded schematic diagram of the fixture assembly provided by the present application;

[0032] Fig.13 This is a working diagram of the fixture assembly provided in this application. Figure 1 ;

[0033] Fig.14 This is a working diagram of the fixture assembly provided in this application. Figure 2 ;

[0034] Fig.15 This is a working diagram of the fixture assembly provided in this application. Figure 3 . DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0036] See also Figure 1-Figure 3 The laser scribing device for thin-film solar cells includes a shield assembly 10, a driving device 20, an optical path assembly 30, a laser head device 40, a fixture assembly 50, an auxiliary channel 60, a refrigerator 70 and a smoke purifier 80. The shield assembly 10 includes a body shield 110, a frame shield 120 and an optical path shield 130. The frame shield 120 is fixedly connected to the driving device 20, the driving device 20 is fixedly connected to the optical path assembly 30, the fixture assembly 50 and the optical path shield 130, and the optical path shield 130 is used to protect the optical path assembly 30. The optical path assembly 30 is fixedly connected to the laser head device 40. The body shield 110 is connected to the frame shield 120 to protect the driving device 20, the optical path assembly 30, the laser head device 40, the fixture assembly 50 and the optical path shield 130 inside the body shield 110. The fuselage shield 110 has a connecting pipe 1110, which passes through the fuselage shield 110 and the optical path shield 130. The refrigerator 70 and the smoke purifier 80 have corresponding connecting pipes (not shown in the figure), which are connected to the connecting pipe 1110 through the auxiliary channel 60, so that the refrigerator 70 and the smoke purifier 80 can provide cooling and smoke removal functions for the fuselage shield 110, thereby improving the working stability of the laser scribing device for thin-film solar cells.

[0037] See also Figure 4-Figure 7The driving device 20 includes a driving base 210, a driving column 220, a driving beam 230, a wire groove 240, a Y-axis moving device 250, and an X-axis moving device 260. The driving column 220 is fixedly mounted on the driving base 210, and the driving beam 230 is fixedly mounted on the driving column 220 to support and fix the driving beam 230. The Y-axis moving device 250 is fixedly mounted on the driving base 210, the X-axis moving device 260 is fixedly mounted on the driving beam 230, and the wire groove is mounted on the driving column 220.

[0038] The Y-axis moving device 250 includes a Y-axis linear motor assembly 2510 and a Y-axis drag chain 2520. The X-axis moving device 260 includes an X-axis linear motor assembly 2610 and an X-axis drag chain 2620. The Y-axis drag chain 2520 and the X-axis drag chain 2620 protect the lines of the Y-axis linear motor assembly 2510 and the X-axis linear motor assembly 2610, respectively, to avoid the lines from being crossed and entangled, and to improve the stability of the Y-axis moving device 250 and the X-axis moving device 260.

[0039] The Y-axis linear motor assembly 2510 includes a Y-axis moving platform 2511, a Y-axis protective cover 2512, a Y-axis stator 2513, a Y-axis mover 2514, a Y-axis adapter plate 2515, a Y-axis slider 2516, a Y-axis slide rail 2517, an anti-collision block 2518 and a Y-axis fixed block 2519. The Y-axis protective cover 2512 is used to protect the Y-axis linear motor assembly 2510. The Y-axis stator 2513, the Y-axis slide rail 2517 and the Y-axis fixed block 2519 are fixed on the driving base 210. The Y-axis mover 2514 is placed in the Y-axis stator 2513, the Y-axis mover 2514 is fixedly connected to the Y-axis adapter plate 2515, and the Y-axis adapter plate 2515 is fixedly connected to the Y-axis moving platform 2511, so that the Y-axis stator 2513 drives the Y-axis mover 2514 to drive the Y-axis moving platform 2511 to move. The Y-axis slider 2516 is slidably connected to the Y-axis slide rail 2517, and the Y-axis mobile platform 2511 is fixedly connected to the Y-axis slider 2516, thereby improving the stability of the Y-axis mobile platform 2511 during movement. The anti-collision block 2518 is located on the side of the Y-axis mobile platform 2511, and moves with the movement of the Y-axis mobile platform 2511. The anti-collision block 2518 cooperates with the Y-axis fixed block 2519 to limit the moving distance of the Y-axis mobile platform 2511.

[0040] The X-axis linear motor assembly 2610 includes an X-axis moving platform 2611, an X-axis protective cover 2612, an X-axis stator 2613, an X-axis mover 2614, an X-axis adapter plate 2615, an X-axis slider 2616, an X-axis slide rail 2617, an X-axis movement sensor 2618, and an X-axis touch panel (not shown in the figure). The X-axis protective cover 2612 is used to protect the X-axis linear motor assembly 2610. The X-axis stator 2613, the X-axis slide rail 2617, and the X-axis movement sensor 2618 are fixed on the driving beam 230. The X-axis mover 2614 is placed in the X-axis stator 2613, and the X-axis mover 2614 is fixedly connected to the X-axis adapter plate 2615, and the X-axis adapter plate 2615 is fixedly connected to the X-axis moving platform 2611, so that the X-axis stator 2613 drives the X-axis mover 2614 to drive the X-axis moving platform 2611 to move. The X-axis slider 2616 is slidably connected to the X-axis slide rail 2617, and the X-axis moving platform 2611 is fixedly connected to the X-axis slider 2616, thereby improving the stability of the X-axis moving platform 2611 when moving. The X-axis touch plate (not shown in the figure) is located on the side of the X-axis moving platform 2611 and moves with the movement of the X-axis moving platform 2611. When the X-axis touch plate (not shown in the figure) passes through the X-axis movement sensor 2618, the current movement distance of the X-axis moving platform 2611 can be detected.

[0041] The Y-axis moving platform 2511 is fixedly connected to the fixture assembly 50. The Y-axis moving device 250 drives the fixture assembly 50 to move, and the product on the fixture assembly 50 moves accordingly. The X-axis moving platform 2611 is fixedly connected to the laser head device 40.

[0042] See also Figure 8-Figure 9 The optical path assembly 30 includes a laser 310, a laser transmission device 320, a left side plate 330, a right side plate 340 and a support rod 350. The laser 310, the left side plate 330 and the right side plate 340 are fixedly mounted on the driving beam 230. One end of the support rod 350 is connected to the left side plate 330, and the other end is connected to the right side plate 340. The laser transmission device 320 is fixedly connected to the left side plate 330 and the right side plate 340. The laser transmission device 320 is connected to the laser 310. The laser emitted by the laser 310 is transmitted to the laser head device 40 through the laser transmission device 320.

[0043] The laser transmission device 320 includes a first transmission device 3210 and a second transmission device 3220, which are arranged vertically and have an overall shape of a "C". The first transmission device 3210 transmits red laser light, and the second transmission device 3220 transmits green laser light.

[0044] The first transmission device 3210 includes a first laser adjustment device 3211, a first optical channel 3212, a first telescopic channel device 3213, and a first reflecting device 3214. The second transmission device 3220 includes a second laser adjustment device 3221, a second optical channel 3222, a second telescopic channel device 3223, and a second reflecting device 3224. The first laser adjustment device 3211 is connected to the first reflecting device 3214, both ends of the first optical channel 3212 are connected to the first reflecting device 3214, and the first telescopic channel device 3213 is connected to the first reflecting device 3214. Thus, the laser emitted by the laser 310 is transmitted to the laser head device 40 through the first laser adjustment device 3211, the first first reflecting device 3214, the first optical channel 3212, the second first reflecting device 3214, and the first telescopic channel device 3213. The first laser adjustment device 3211 can adjust the laser emitted by the laser 310. The second transmission device 3220 has the same structure as the first transmission device 3210, and will not be described in detail.

[0045] See also Figure 10-11 The laser head device 40 includes a Z-axis moving device 410, a telescopic device 420, a fixed body 430, a smoke purification joint 440 and a purification pipeline (not shown in the figure). The fixed body 430 is provided with a photographing and identifying device 4310, a distance measuring device 4320 and a laser head 4330. The telescopic device 420 includes a laser head light reflecting device 4210 and a telescopic channel 4220. The laser head light reflecting device 4210 is connected to the telescopic channel 4220. The fixed body 430 is fixedly mounted on the Z-axis moving device 410, the telescopic device 420 and the smoke purification joint 440 are fixedly mounted on the fixed body 430, the Z-axis moving device 410 drives the fixed body 430 and the components mounted on the fixed body 430 to move, and the photographing and identifying device 4310 and the distance measuring device 4320 calibrate the position of the laser head 4330. The laser head light reflecting device 4210 is connected to the laser transmission device 320 to receive the laser transmitted by the laser transmission device 320. The laser head 4330 emits the laser emitted by the laser 310. The Z-axis moving device 410 is connected to the X-axis moving platform 2611. The smoke purification joint 440 is connected to the purification pipeline (not shown in the figure), the purification pipeline (not shown in the figure) is connected to the connecting pipe 1110, and the smoke purification joint 440 is connected to the refrigerator 70 through the purification pipeline (not shown in the figure) corresponding to the refrigerator 70.

[0046] See also Figure 12-Figure 15The fixture assembly 50 includes a positioning assembly 510, a positioning block 520, a fixture base 530, a joint 540 and an adsorption cylinder (not shown in the figure). The positioning assembly 510 includes a cylinder 5110, a push rod 5120, a positioning base 5130, and a push rod fixing plate 5140. A follower 5121 is provided at the front end of the push rod 5120. A plurality of adsorption holes 5310 are provided on the fixture base 530. The positioning block 520 is fixedly mounted on the fixture base 530, the joint 540 is fixedly mounted on the side of the fixture base 530, and the positioning assembly 510 is also fixedly mounted on the side of the fixture base 530. The cylinder 5110 is fixedly mounted on the positioning base 5130, the cylinder 5110 is connected to the push rod fixing plate 5140, and the push rod 5120 is fixedly mounted on the push rod fixing plate 5140. When the product 200 is placed on the jig base 530, the cylinder 5110 pushes the push rod 5120 to contact the product 200, and pushes the product 200 to a position where it is completely in contact with the positioning block 520, thereby completing the positioning. The adsorption cylinder (not shown in the figure) is connected to the joint 540, and the joint 540 is connected to the adsorption hole 5310. Different joints 540 are responsible for adsorption holes 5310 in different areas. Thus, the product 200 placed on the jig base 530 can be adsorbed by the adsorption cylinder (not shown in the figure). The jig assembly 50 can choose to replace different push rods 5120 to adapt to the size of the product 200.

[0047] The working process of this device:

[0048] The product 200 is placed on the fixture base 530, the positioning assembly 510 automatically positions the product 200, and the adsorption cylinder (not shown in the figure) adsorbs and fixes the product 200;

[0049] The Y-axis moving device 250 moves the product 200 to a corresponding specified position; the specified position is suitable for the photo recognition device 4310 to work.

[0050] Under the guidance of the photographing recognition device 4310 and the distance measuring device 4320, the positions of the laser head 4330 and the product 200 are corrected;

[0051] The X-axis moving device 260 drives the laser head 4330 to move, and the Y-axis moving device 250 drives the product 200 to move to perform etching work;

[0052] After etching is completed, the workbench returns to its initial position and the material is unloaded.

[0053] In summary, the present application provides a laser scribing device for thin-film solar cells. By processing the cells with the laser scribing device for thin-film solar cells, thinner line grooves, smaller damage, and reduced dead zone area can be produced, thereby improving the cell conversion efficiency. Moreover, by replacing or adjusting the tooling and fixtures in contact with the cells, and switching the program, the compatible production requirements of products within the specified size range can be met.

[0054] The above are only implementation methods of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A laser scribing device for thin-film solar cells, characterized in that: The laser scribing device for thin-film solar cells comprises: a shield assembly, a driving device, an optical path assembly, a laser head device and a fixture assembly; the shield assembly comprises a frame shield; the frame shield is fixedly connected to the driving device, the driving device is fixedly connected to the optical path assembly and the fixture assembly, and the optical path assembly is fixedly connected to the laser head device; The optical path component includes a laser and a laser transmission device; the laser is fixedly mounted on the driving device; the laser transmission device is connected to the laser; the laser emitted by the laser is transmitted to the laser head device through the laser transmission device; The laser transmission device at least comprises a first transmission device and a second transmission device, wherein the first transmission device and the second transmission device are arranged vertically; The driving device includes a driving base, a driving column, a driving beam, a Y-axis moving device and an X-axis moving device; The laser head device comprises a Z-axis moving device, a telescopic device and a fixed body; the fixed body is provided with a photographing recognition device, a distance measuring device and a laser head; the telescopic device comprises a laser head light reflecting device and a telescopic channel, and the laser head light reflecting device is connected to the telescopic channel; the fixed body is fixedly mounted on the Z-axis moving device; the Z-axis moving device is fixedly connected to the X-axis moving device; The fixture assembly includes a positioning assembly, a positioning block, a fixture base, a joint and an adsorption cylinder; the positioning block is fixedly mounted on the fixture base, and the joint and the positioning assembly are fixedly mounted on the side of the fixture base; the fixture base is provided with a plurality of adsorption holes, the adsorption holes are connected to the joint, and the joint is connected to the adsorption cylinder; the positioning assembly includes a push rod moving device, a push rod, and a positioning base, the push rod moving device is fixedly mounted on the positioning base, and the push rod moving device is connected to the push rod.

2. The laser scribing device for thin-film solar cells according to claim 1, characterized in that: The push rod moving device is a cylinder, and the positioning assembly also includes a push rod fixing plate. The cylinder is connected to the push rod fixing plate, and the push rod is fixedly mounted on the push rod fixing plate.

3. The laser scribing device for thin-film solar cells according to claim 1, characterized in that: The driving device also includes a wire groove; the driving column is fixedly installed on the driving base, the driving beam is fixedly installed on the driving column, the Y-axis moving device is fixedly installed on the driving base, the X-axis moving device is fixedly installed on the driving beam, and the wire groove is installed on the driving column.

4. The laser scribing device for thin-film solar cells according to claim 3, characterized in that: The Y-axis moving device includes a Y-axis linear motor assembly and a Y-axis drag chain; the X-axis moving device includes an X-axis linear motor assembly and an X-axis drag chain.

5. The laser scribing device for thin-film solar cells according to claim 1, characterized in that: The first transmission device includes a first laser adjustment device, a first optical channel, a first telescopic channel device, and a first reflecting device. The laser is connected to the first laser adjustment device, the first laser adjustment device is connected to the first reflecting device, the first reflecting device is connected to the first optical channel, the first optical channel is connected to another first reflecting device, and another first reflecting device is connected to the first telescopic channel device.

6. The laser scribing device for thin-film solar cells according to claim 5, characterized in that: The first transmission device is "C" shaped.

7. The laser scribing device for thin-film solar cells according to claim 1, characterized in that: The shield assembly also includes a body shield and an optical path shield; the optical path shield is used to protect the optical path assembly; the body shield is provided with a connecting pipe, and the connecting pipe passes through the body shield and the optical path shield.

8. The laser scribing device for thin-film solar cells according to claim 7, characterized in that: The laser scribing device for thin-film solar cells also includes an auxiliary channel, a refrigerator and a fume purifier; the refrigerator and the fume purifier have corresponding connecting pipes, and the connecting pipes are connected to the connecting pipe through the auxiliary channel.

9. The laser scribing device for thin-film solar cells according to claim 8, characterized in that: The laser head device also includes a smoke purification joint and a purification pipeline; the smoke purification joint is connected to the purification pipeline, the purification pipeline is connected to the connecting pipe, and the smoke purification joint is connected to the refrigerator through the purification pipeline corresponding to the refrigerator.

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