CN215280395U

CN215280395U - Solar cell laser edge cleaning machine

Info

Publication number: CN215280395U
Application number: CN202121904494.8U
Authority: CN
Inventors: 汪玉树; 谢美才; 孙琳琳
Original assignee: Suzhou Maxwell Technologies Co Ltd
Current assignee: Suzhou Maxwell Technologies Co Ltd
Priority date: 2021-08-13
Filing date: 2021-08-13
Publication date: 2021-12-24
Anticipated expiration: 2031-08-13

Abstract

The utility model discloses a clear limit of solar cell laser machine belongs to photovoltaic solar energy processing technology field. The edge cleaning machine comprises a machine table, a plurality of linear driving mechanisms, a working platform and a lifting transmission mechanism; the linear driving mechanisms surround a rectangular processing area; each linear driving mechanism is provided with a laser cleaning head, and each laser cleaning head comprises a rack, a micromotion module, a first laser system and a second laser system; the working platform is positioned in the rectangular processing area, a plurality of air holes are formed in the working platform, and air is blown or sucked through the air holes so that the solar cell is floated above the working platform or adsorbed on the surface of the working platform; the lifting transmission mechanism is arranged on the working platform and used for lifting and transmitting the solar cell in the solar cell edge cleaning process. The utility model discloses can carry out effective clear limit to solar cell, the marginal heat influence is little, and is efficient.

Description

Solar cell laser edge cleaning machine

Technical Field

The utility model belongs to the technical field of photovoltaic solar energy processing, concretely relates to solar cell laser edge cleaner.

Background

Solar cells are typically constructed of a solar cell substrate and a thin film layer structure, such as a perovskite solar cell, attached to the solar cell glass substrate, with the thin film layer on the solar cell substrate comprising an underlying transparent conductive layer, perovskite layer (or other material layer), conductive layer. In the production process of the solar cell, the edge cleaning is carried out along the edge of the glass substrate of the solar cell, so that when the solar cell is mounted on metal, the thin film layer and the metal frame are short-circuited or moisture enters the metal frame to reduce the conductivity, and therefore, the edge cleaning of the solar cell is an essential process in the manufacturing process of the solar cell.

However, in the conventional solar cell edge deletion process, a high-power infrared laser is usually used to complete the edge deletion process, but in the solar cell edge deletion process, the solar energy is affected by a large thermal influence on the edge, so that the conductivity and the overall performance of the solar cell are affected. In addition, there are also new processes and apparatuses, for example, a film removing method, a substrate processing method and a substrate processing apparatus disclosed in the invention patent application No. 202010361352.5; and patent document No. 201080050150.3 also discloses a method and an apparatus for manufacturing a solar cell module. However, the existing technologies still cannot effectively clear the edge of the solar cell in the process of clearing the edge of the solar cell.

SUMMERY OF THE UTILITY MODEL

The technical problem is as follows: the utility model provides a can carry out the clear limit machine of laser of effective clear limit to solar cell, the marginal heat influence that can effectual reduction clear limit in-process.

The technical scheme is as follows: on the one hand, the utility model provides a clear limit of laser machine, include:

a machine platform;

the linear driving mechanisms are arranged on the machine table and enclose a rectangular processing area; each linear driving mechanism is provided with a laser cleaning head, and each laser cleaning head comprises a rack, a micro-motion module arranged at the upper end of the rack, a first laser system arranged on the micro-motion module and a second laser system arranged at the lower part of the rack; the first laser system is used for scribing the solar cell and dividing the solar cell into an effective area and an ineffective area, and the second laser system is used for clearing the ineffective area;

the working platform is arranged on the machine table and positioned in the rectangular processing area, and a plurality of air holes are formed in the working platform, so that air can be blown or sucked through the air holes, and the solar cell can be floated above the working platform or adsorbed on the surface of the working platform;

and the lifting transmission mechanism is arranged on the working platform and used for lifting and transmitting the solar cell in the solar cell edge cleaning process.

When edge cleaning is carried out, the lifting transmission mechanism is lifted, the solar cell is transmitted to a set position forwards, then the lifting transmission mechanism descends, the working platform blows air outwards, the solar cell is floated above the working platform, and the clamping positioning component is started to clamp and position the solar cell; then the clamping and positioning component retracts, the external air pressure is gradually reduced, the solar cell falls on the surface of the working platform, and the solar cell is adsorbed; then starting a first laser system, scribing the solar cell under the drive of the linear driving mechanism, and dividing a film layer on the surface of the solar cell into an effective area and an ineffective area; then starting a second laser system, and removing the film in the invalid area under the drive of the linear driving mechanism; after the cleaning is finished, the linear driving mechanism returns to the original position, and the laser cleaning head returns to the original position; and then the lifting transmission mechanism ascends to convey the edge-cleaned solar cells forwards for blanking. By utilizing the equipment, the edge cleaning operation is completed through the cooperation of the two laser systems, so that the edge heat influence of the laser on the solar cell can be effectively reduced, and the performance of the solar cell is ensured. In addition, degree of automation is high, can greatly improve production efficiency.

Furthermore, four linear driving mechanisms are arranged on the side, so that the height tolerance and the parallelism of the working table surface can be guaranteed, the influence of machining errors during equipment manufacturing is eliminated, and the installation and the debugging are easy.

Furthermore, the first laser system comprises a first laser, a first laser and a focusing lens, wherein a laser beam emitted by the first laser is reflected by the first laser, then irradiates into the focusing lens, and is emitted after being focused by the focusing lens.

Furthermore, the second laser system comprises a second laser, a second reflecting mirror, a vibrating mirror and a field lens, and laser beams emitted by the second laser are reflected by the second reflecting mirror and then sequentially enter the vibrating mirror and the field lens to be emitted.

Furthermore, a plurality of clamping and positioning parts are arranged on the machine table and located on the outer side of the linear driving mechanism, and the clamping and positioning parts are used for clamping and positioning the solar cell on the edge cleaning machine.

Furthermore, a dust hood is arranged on the focusing lens, a laser through hole and a dust extraction opening are formed in the dust hood, and a laser beam coming out of the focusing lens penetrates through the laser through hole, so that dust can be synchronously collected in the edge cleaning process, and the influence of the smoke on the solar cell is avoided.

Furthermore, the lifting transmission mechanism is arranged below the working platform and comprises a plurality of roller transmission units, and rollers of the roller transmission units can pass through roller via holes formed in the working platform to lift.

Furthermore, the lifting transmission mechanism comprises a support body, a first driving part, a second driving part and a plurality of roller transmission units, the roller transmission units are arranged on the support body, each roller transmission unit comprises a cross beam, a plurality of rollers arranged on the cross beam and a transmission wheel, and the transmission wheels and the rollers are transmitted through synchronous belts; the first driving part is used for driving the supporting body to move up and down, and the second driving part drives the roller to rotate.

Further, an air receiving component is arranged below the working platform and connected with the air hole and an external air compressor through the air receiving component.

Further, a laser power detection device is arranged on the machine table and used for detecting the power of the laser system.

Furthermore, the clamping and positioning component is an air cylinder or an electric cylinder, and is simple in structure and easy to control.

Compared with the prior art, the utility model, have following advantage: when edge cleaning is carried out, the lifting transmission mechanism is lifted, the solar cell is transmitted to a set position forwards under the action of the roller, the roller stops, then the lifting transmission mechanism descends, the working platform blows air outwards, the solar cell is floated above the working platform, and the clamping positioning component is started to clamp and position the solar cell; then the clamping and positioning component retracts, the external air pressure is gradually reduced, the solar cell falls on the surface of the working platform, and the solar cell is adsorbed; then starting a first laser system, scribing the solar cell under the drive of the linear driving mechanism, and dividing a film layer on the surface of the solar cell into an effective area and an ineffective area; then starting a second laser system, and removing the film in the invalid area under the drive of the linear driving mechanism; and then the lifting transmission mechanism rises, and under the action of the rollers, the solar cells after edge cleaning are conveyed forwards for blanking. By utilizing the equipment, the edge cleaning operation is completed through the cooperation of the two laser systems, the edge heat influence of laser on the solar cell can be effectively reduced, the performance of the solar cell is ensured, the edge cleaning efficiency is high, and the automation degree is high.

Drawings

Fig. 1 is a perspective general assembly diagram of an edge trimmer in an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an enlarged view of a portion of FIG. 1 at B;

fig. 4 is a perspective view of an edge trimmer according to an embodiment of the present invention;

fig. 5 is a side view of an edge trimmer according to an embodiment of the present invention;

FIG. 6 is an enlarged view of a portion of FIG. 5 at C;

fig. 7 is a top view of an edge trimmer according to an embodiment of the present invention;

FIG. 8 is an enlarged view of a portion of FIG. 7 at D;

FIG. 9 is a schematic diagram of a solar cell edge deletion process;

fig. 10 is a schematic view of the installation of the linear driving mechanism according to the embodiment of the present invention;

fig. 11 is a perspective view of a laser cleaning head in an embodiment of the present invention;

fig. 12 is a perspective view of another perspective of the laser cleaning head in an embodiment of the present invention;

fig. 13 is a schematic diagram of a laser path in an embodiment of the present invention;

FIG. 14 is a block diagram of a suction hood in an embodiment of the present invention;

fig. 15 is a flowchart of edge deletion performed by the edge deletion machine according to the embodiment of the present invention.

The figure shows that: 100. a machine platform; 200. clamping the positioning component; 300. a linear drive mechanism; 400. a laser cleaning head; 410. a frame; 420. a micro-motion module; 430. a first laser system; 431. a first laser; 432. a first reflector; 433. a focusing lens; 440. a second laser system; 441. a second laser; 442. a second reflector; 443. a galvanometer; 444. a field lens; 450. a dust hood; 451. laser via holes; 452. a dust extraction port; 500. a working platform; 510. air holes; 520. a gas receiving member; 530. a roller is provided with a through hole; 600. a lifting transmission mechanism; 610. a roller transmission unit; 611. a roller; 612. a cross beam; 613. a driving wheel; 614. a synchronous belt; 620. a support body; 700, laser power detection device.

Detailed Description

The invention is further described with reference to the following examples and the accompanying drawings. It is noted that the terms "first," "second," and the like are used for convenience of description only and are not to be construed as limiting in number or the like.

With reference to fig. 1-8, the laser edge trimmer comprises: the device comprises a machine table 100, a plurality of linear driving mechanisms 300, a working platform 500 and a lifting transmission mechanism 600; the utility model discloses an embodiment kind has adopted four linear drive mechanism 300 altogether, and linear drive mechanism 300 can adopt linear electric motor, sharp module etc.. In the preferred scheme, adopted four linear electric motor, four linear electric motor all set up on board 100, enclose into the processing region of a rectangle, because solar cell is the rectangle, need carry out the clear limit simultaneously to four limits of rectangle to improve production efficiency. Generally, a solar cell is long and square, and two opposite long sides and two opposite sides exist, so that four linear motors, two oppositely arranged long-stroke linear motors and two oppositely arranged short-stroke linear motors, are arranged in four linear motors, and a rectangular area is formed in a shape similar to that of the solar cell. The linear motor can adopt the existing high-precision linear motor. Each linear motor is provided with one laser cleaning head 400, so that each linear motor can drive one laser cleaning head to move along a preset motion track, and the cleaning of one edge of the solar cell is completed. Therefore, the four linear motors drive the respective laser cleaning heads 400 to work simultaneously, so that the four edges of the solar cell can be cleaned simultaneously, and the production efficiency is effectively improved.

In the embodiment of the present invention, the laser cleaning head 400 includes a frame 410, a micro-motion module 420 disposed on the upper end of the frame 410, a first laser system 430 disposed on the micro-motion module 420, and a second laser system 440 disposed on the lower portion of the frame 410. The utility model discloses a clear limit is mainly to the clear limit technology of a new laser and develops, when carrying out clear limit, at first utilize the laser that first laser system 430 sent to rule solar cell, under sharp actuating mechanism's drive, cut apart into effective area (the region that needs remain) and invalid area (the region that needs clear away) with the thin layer on solar cell surface, as shown in fig. 9, then utilize second laser system 440, under sharp actuating mechanism 300's drive, clear away invalid area's film.

The work platform 500 is disposed on the machine table 100 and located in the rectangular processing area, and functions to support the solar cell. In the embodiment of the present invention, the working platform 500 is provided with a plurality of air holes 510, and the air holes 510 blow or suck air to the outside, so that the solar cell can be floated on the working platform 500 or adsorbed on the surface of the working platform 500. An air receiving part 520 is arranged below the working platform 500, the air receiving part 520 is communicated with the air holes 510, and the air holes are connected with an external air compressor and the like through the air receiving part 520, so that air is blown or sucked to the outside through the air holes, and the solar cell is floated above the working platform or adsorbed on the surface of the working platform.

The lifting and transferring mechanism 600 is disposed on the machine table 100, and is used for lifting or lowering the solar cell and enabling the solar cell to be transferred forward. In a specific implementation process, the lifting transmission mechanism 600 may adopt a mechanical arm or the like, but the mechanical arm may increase the volume of the whole device, and increase the cost, so in a preferred embodiment of the present invention, another structural form is adopted, the lifting transmission mechanism is disposed below the working platform 500, the lifting transmission mechanism 600 includes a plurality of roller transmission units 610, the rollers 611 of the roller transmission units 610 can pass through the working platform 500 through the roller via holes 530 disposed on the working platform 500, when solar energy needs to be raised, the rollers 611 pass through the working platform to move upwards, so as to support the solar cell to be raised, and when the solar cell needs to be lowered, the rollers 611 are lowered, so that the solar cell is lowered; when the solar cell needs to be transported forward, the roller 611 rotates to transport the solar cell forward.

Specifically, in the embodiment of the present invention, the lifting transmission mechanism 600 includes a supporting body 620, a first driving part, a second driving part, and a plurality of roller transmission units 610, the roller transmission units 610 are disposed on the supporting body 620, the roller transmission units 610 include a beam 612, a plurality of driving wheels 613 disposed on the beam 612, and a plurality of rollers 611 disposed on the beam, and the rollers 611 and the driving wheels 613 are driven by a synchronous belt 614. The first driving part may adopt an electric cylinder, an air cylinder or an oil cylinder, and the first driving part is used to push the supporting body 620 to move up and down, so that the roller transmission unit 610 may move up and down, and further, the solar cell is driven to lift. And the second driving part, which may be an electric motor, a hydraulic motor, etc., drives the driving wheel 613 to rotate, thereby driving all the rollers 611 to rotate to transmit the solar cells.

In the preferred embodiment of the present invention, the four linear driving mechanisms are disposed on the side, so as to ensure the height tolerance and the parallelism with the table top of the working platform 230. Use linear electric motor as an example, in the manufacturing process of machine, because the square expert deformation when can have the welding in big breadth square expert welding process, stress release deformation etc. makes linear electric motor installation benchmark error tolerance big (0.03 mm) in the processing, long stroke linear electric motor (the utility model discloses an embodiment has adopted 2200 mm) base plate processing thickness tolerance big +/-0.02 mm on the large side, the error can skew the designing requirement when adopting the front installation +/-0.05 mm more than or equal to, its straightness accuracy of long stroke linear electric motor can reach 0.008mm, adopts the side to hang the installation and can get rid of the influence that machining error corresponds to installation and debugging convenience can refer to figure 10.

The linear motor can run in a straight line parallel to the worktable plate Z3 by adjusting Y1 and Y2, and the linear motor can run in a same interval with the worktable plate by adjusting X1 and X2.

In the embodiment of the present invention, in combination with fig. 11 and 12, the first laser system 430 includes a first laser 431, a first reflector 432 and a focusing lens 433, and a laser beam emitted by the first laser 431 is reflected by the first reflector 432 and then enters the focusing lens 433, and is focused by the focusing lens 433 and then is emitted. When the solar cell is edge-cleared, the thin film on the rear surface of the solar cell is divided into an active area and an inactive area by the first laser system 430. In general, when the solar cell is divided into regions, a laser having a large power is not required, and in order to reduce the influence of heat on the edges of the solar cell, the power of the first laser is as small as possible, but is too small to affect the efficiency, so that the problems of efficiency and heat influence must be balanced. Therefore, in the embodiment of the present invention, the first laser 431 is a laser with power ranging from 10W to 30W, so that the cost of the device can be reduced. The first mirror 432 reflects the laser beam emitted from the first laser 431 by 90 ° and then emits the reflected laser beam into the focusing lens 433, and the laser beam is focused by the focusing lens 433 and then emitted onto the surface of the solar cell, and the division of the region is completed by the driving of the linear driving mechanism 300.

In the embodiment of the present invention, the second laser system 440 includes a second laser 441, a second reflecting mirror 442, a vibrating mirror 443, and a field lens 444, and a laser beam emitted by the second laser 441 enters the vibrating mirror 443 and the field lens 444 in sequence after being reflected by the second reflecting mirror 442 and then is emitted. The second laser system 440 is mainly used for removing the thin film in the inactive area, and the inactive area is separated from the active area, and in the removing process, the active area is not affected by heat, so that a laser with larger power can be adopted, and therefore, the laser with the power range of 100-500W is selected for use in the implementation of the present invention. When the null region elimination is continued, the laser beam emitted from the second laser 441 is reflected by the second mirror 442 by 90 °, and then enters the oscillating mirror 443, and the oscillating mirror 443 focuses the laser beam, and emits the focused laser beam through the field lens 444, and the oscillating mirror 443 oscillates to perform the flight marking, so that the null region elimination is completed by the driving of the linear driving mechanism. The optical path structure formed by the first laser system and the second laser system is shown in fig. 13.

The machine table 100 is provided with a plurality of clamping and positioning components 200, the number of the clamping and positioning components 200 is determined according to the size of the solar cell applied by the laser edge trimming machine, when the laser edge trimming machine is suitable for processing a large-size solar cell, a plurality of clamping and positioning components 200 can be additionally arranged, specifically, the clamping and positioning components 200 are arranged on the outer side of the linear driving mechanism, namely the outer side of the rectangular processing area, and can be oppositely arranged for clamping and positioning the solar cell. The utility model discloses an in the embodiment, step up locating part 200 and can adopt cylinder or electric jar, when stepping up the location to solar cell so, only stretch out through the jar pole of cylinder or electric jar, can be in order to fix a position accurate processing position with solar cell, simple structure, the control of being convenient for.

Further, high-temperature smoke is easily generated during the laser edge cleaning process, and if the smoke falls on the solar cell, the surface of the cell is likely to be damaged, so that the smoke needs to be sucked away in time. In the embodiment of the present invention, a dust hood 450 is disposed on the focusing lens 433, as shown in fig. 14, a laser via hole 451 and a dust suction port 452 are disposed on the dust hood 450, wherein the dust suction port 452 is connectable to a dust suction device, and a laser beam coming out of the focusing lens 433 passes through the laser via hole 451. Thus, the laser beam emitted from the focusing lens 433 can be emitted perpendicularly to the dust hood 450, and the dust hood 450 can completely cover the working area of the laser beam emitted from the focusing lens 433, thereby improving dust collection efficiency. The second laser system 440 is approximately opposite to the first laser system 430, so that when the second laser system 440 works, smoke can be sucked away through the dust hood 450 at any time, and the influence of the smoke on the battery is avoided.

Further, in the embodiment of the present invention, the laser power detection device 700 is disposed on the machine table 100, and specifically, the laser power detection device 700 is disposed at the initial position of the laser cleaning head 400. in the present invention, the initial position of the laser cleaning head 400 is the intersection of two linear driving mechanisms, i.e. the corner position of the working area of the rectangle, because the power detection needs to be performed on four laser cleaning heads 400, at least two laser power detection devices need to be disposed, and the two corners are disposed at the working area of the rectangle respectively. In actual engineering, the power of the laser emitted by the second laser system only needs to be detected, so that before the solar cell edge cleaning, the laser emitted by the second laser system is firstly irradiated on the laser power detection device to detect whether the power of the laser meets the process requirement.

Utilize the embodiment of the utility model provides an in the clear limit machine that proposes at first under sharp actuating mechanism's drive, utilize first laser system 430 on the laser cleaning head 400 to rule solar cell's thin layer, cut apart into invalid region and effective area with the thin layer, then under sharp actuating mechanism's drive, through second laser system, clear away the film in the invalid region totally to solar cell's high-efficient clear limit has been realized. In addition, when the edge cleaning is carried out through the edge cleaning machine, the edge cleaning is completed through two processes, so that the edge heat influence of the laser on the solar cell can be effectively reduced, and the performance of the solar cell is ensured. In addition, degree of automation is high, can greatly improve production efficiency.

When the edge deletion machine provided in the above embodiment is used to delete the edges of the batteries, as shown in fig. 15, the method includes:

s100: resetting the laser cleaning head 400 and adsorbing the solar cell on the working platform 500;

s200: starting a first laser system 430 to emit first laser to irradiate on a thin film layer of the solar cell, scribing the solar cell under the driving of four linear driving mechanisms 300, and dividing the solar cell into an effective area and an ineffective area;

s300: the first laser system 430 is turned off, the second laser system 440 is started to emit a second laser beam to irradiate the thin film layer through the glass substrate, the focusing position of the laser beam is changed by the vibrating mirror 443, and the thin film in the invalid area is removed under the driving of the four linear driving mechanisms 300.

By dividing the thin film on the surface of the solar cell into the active area and the inactive area by the above method, only scribing is performed without performing laser ablation in a large range in the first laser irradiation, and thus the influence of the edge heat on the active area is small; and when the invalid region is removed by the second laser, the invalid region is separated from the effective region, so that great heat influence on the edge of the effective region can not be generated, the two laser irradiation processes are integrated, the edge cleaning is completed, great heat influence is not generated in the whole edge cleaning process, the overall performance of the solar cell is ensured, and great influence caused by the edge cleaning can be avoided.

Further, the power of the first laser is smaller than that of the second laser, because only a small area needs to be ablated when the solar cell is scribed and divided, only a small power of laser is needed to ensure the processing efficiency, the edge heat influence on the solar cell in the edge cleaning process can be effectively reduced by using the small power of laser, and the manufacturing cost of the equipment can be reduced by using the small power of laser. And the second laser with higher power is adopted, so that the edge cleaning efficiency can be effectively improved, and the invalid area is separated from the effective area, so that the effective area is not greatly influenced by heat when the invalid area is cleaned.

In addition, in the embodiment of the present invention, when the solar cell is loaded, the lifting transmission mechanism 600 is lifted, and the solar cell is placed on the lifting transmission mechanism 600; the lifting transmission mechanism 600 is lowered, the working platform 500 blows air outwards, and the solar cell is floated above the working platform 500; the clamping and positioning component 200 extends out, and retracts to the clamping and positioning component 200 after pushing the solar cell to an accurate edge clearing position; the air pressure of the air blowing of the working platform 500 is gradually reduced until the solar cell falls back to the working platform 500, and the working platform adsorbs the solar cell. In order to carry out position control to solar cell during the primary action to make the precision of clear limit better, clear limit quality is better.

In addition, in order to reduce the smoke and dust that laser ablation in-process produced the utility model discloses an in the embodiment, when carrying out clear limit to solar cell, carry out the dust absorption simultaneously, in time siphoning away the smoke and dust that laser ablation produced through suction hood 450, avoid the smoke and dust to cause the damage to solar cell surface.

The above-described embodiments are only preferred embodiments of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several modifications and equivalent substitutions can be made, and these modifications and equivalent substitutions do not depart from the technical scope of the present invention.

Claims

1. The utility model provides a solar cell laser edge cleaner which characterized in that includes:

a machine table (100);

the linear driving mechanisms (300) are arranged on the machine table (100) and enclose a rectangular processing area; each linear driving mechanism (300) is provided with a laser cleaning head (400), and each laser cleaning head (400) comprises a frame (410), a micro-motion module (420) arranged at the upper end of the frame (410), a first laser system (430) arranged on the micro-motion module (420) and a second laser system (440) arranged at the lower part of the frame (410); the first laser system (430) is used for scribing the solar cell and dividing the solar cell into an effective area and an ineffective area, and the second laser system (440) is used for clearing the ineffective area;

the working platform (500) is arranged on the machine table (100) and is positioned in the rectangular processing area, a plurality of air holes (510) are formed in the working platform (500), and air blowing or air suction can be carried out through the air holes (510), so that the solar cell can be floated above the working platform (500) or adsorbed on the surface of the working platform (500);

and the lifting transmission mechanism (600) is arranged on the working platform (500) and is used for lifting and transmitting the solar cell in the solar cell edge cleaning process.

2. The solar cell laser edge trimmer according to claim 1, characterized in that the linear driving mechanisms (300) are arranged side-on-side.

3. The solar cell laser edge cleaning machine according to claim 2, wherein the first laser system (430) comprises a first laser (431), a first laser (431) and a focusing lens (433), and a laser beam emitted by the first laser (431) is reflected by the first laser (431), then enters the focusing lens (433), is focused by the focusing lens (433), and then is emitted.

4. The solar cell laser edge cleaner according to claim 3, wherein the second laser system (440) comprises a second laser (441), a second reflector (442), a vibrating mirror (443), and a field lens (444), and a laser beam emitted by the second laser (441) is reflected by the second reflector (442) and then enters the vibrating mirror (443) and the field lens (444) in sequence and then is emitted.

5. The laser edge cleaning machine for the solar cell according to claim 1, wherein a plurality of clamping and positioning components (200) are arranged on the machine table (100), and the clamping and positioning components (200) are positioned outside the linear driving mechanism (300).

6. The solar cell laser edge cleaning machine according to claim 4, characterized in that a dust hood (450) is arranged on the focusing lens (433), a laser through hole (451) and a dust suction port (452) are arranged on the dust hood (450), and a laser beam from the focusing lens (433) passes through the laser through hole (451).

7. The solar cell laser edge trimmer according to claim 6, wherein the lifting transmission mechanism (600) is arranged below the working platform (500), the lifting transmission mechanism (600) comprises a plurality of roller transmission units (610), and rollers (611) of the roller transmission units (610) can pass through roller through holes (530) formed in the working platform (500) to be lifted.

8. The solar cell laser edge cleaning machine according to claim 7, wherein the lifting transmission mechanism (600) comprises a support body (620), a first driving part, a second driving part and the plurality of roller transmission units, the plurality of roller transmission units (610) are arranged on the support body (620), the roller transmission units (610) comprise a beam (612) and a plurality of rollers (611) arranged on the beam (612) and a transmission wheel (613), and the transmission wheel (613) and the rollers are driven by a synchronous belt (614); the first driving part is used for driving the supporting body (620) to move up and down, and the second driving part drives the roller to rotate.

9. The solar cell laser edge cleaning machine according to claim 8, wherein a gas receiving part (520) is arranged below the working platform (500), and the gas receiving part (520) is connected with the air hole (510).

10. The solar cell laser edge cleaning machine according to any one of claims 1-9, wherein a laser power detection device (700) is arranged on the machine table (100).

11. The solar cell laser edge trimmer according to claim 5, characterized in that the clamping and positioning component (200) is a cylinder or an electric cylinder.