CN117733364A - Solar cell processing device and processing method - Google Patents

Abstract

The invention discloses a solar cell processing device and a solar cell processing method. The processing device comprises a first positioning component, a first laser component, a second positioning component and a second laser component. The first positioning component is used for positioning the outline of the solar cell; the first laser component is used for processing the positioning mark and is arranged at the downstream of the first positioning component, or the first laser component and the first positioning component are arranged on the same station; the second positioning component is used for positioning the positioning mark and is positioned at the downstream of the first laser component or is arranged on the same station with the first positioning component; the second laser component is used for processing the to-be-processed area of the solar cell, and is positioned at the downstream of the second positioning component, or the second laser component and the second positioning component are arranged on the same station. The processing device of the application greatly improves the position accuracy of processing through conversion of the reference.

Description

Solar cell processing device and processing method

Technical Field

The invention relates to the field of manufacturing and processing of solar cells, in particular to a solar cell processing device and a solar cell processing method.

Background

The solar cell is an electronic product with high precision and high cleanliness, is one of the components of a solar cell module, and has the main function of converting light energy into electric energy so as to realize solar power generation. Solar cells are receiving increasing attention because solar energy is a renewable clean energy source.

In the related art, when the solar cell is subjected to processes such as laser sintering and laser oxidation, the outer contour of the solar cell is usually positioned by the clamping jaw, and then the whole solar cell is processed, however, if the contour positioning has errors, the position accuracy of the whole processing area is greatly affected.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the solar cell processing device, which avoids directly taking the outline of the solar cell as a final processing reference through reference conversion, and greatly improves the position accuracy of a processing area on the solar cell.

The invention further provides a solar cell processing method.

According to an embodiment of the first aspect of the present invention, a solar cell processing apparatus includes:

the first positioning component is used for positioning the outline of the solar cell;

the first laser component is used for processing the positioning mark and is arranged at the downstream of the first positioning component, or the first laser component and the first positioning component are arranged on the same station;

the second positioning component is used for positioning the positioning mark and is positioned at the downstream of the first laser component or is arranged on the same station with the first positioning component;

the second laser component is used for processing the to-be-processed area of the solar cell, and the second laser component is positioned at the downstream of the second positioning component or is arranged on the same station with the second positioning component.

The solar cell processing device provided by the embodiment of the invention has at least the following beneficial effects:

according to the solar cell positioning device, edge positioning and point positioning are respectively carried out through the two groups of positioning components, and the first positioning component carries out rough reference positioning on the basis of the outline of the solar cell so that the first processing component processes the positioning mark. The second positioning component converts the reference to position the positioning mark as a precise reference so as to ensure the processing precision of the second processing component for processing the whole piece. Through the conversion of the reference, the profile of the solar cell is prevented from being directly used as a final machining reference, so that the position accuracy of a machining area on the solar cell is greatly improved, the laser machining out-of-tolerance caused by large profile size deviation is avoided, and the solar cell machining device is applied to the working procedures of laser sintering, oxidation, cutting and the like and can greatly improve the yield of the solar cell.

According to some embodiments of the invention, the solar cell processing device comprises a turntable mechanism, wherein the turntable mechanism is provided with a first station, a second station, a third station and a fourth station along the circumference of the turntable mechanism, and the turntable mechanism rotates to drive the solar cell to sequentially pass through the first station, the second station, the third station and the fourth station;

the first positioning assembly, the first laser assembly, the second positioning assembly and the second laser assembly are sequentially arranged on the first station, the second station, the third station and the fourth station.

According to some embodiments of the invention, the first positioning assembly is disposed at the first station, the first laser assembly is disposed at the second station, the second positioning assembly is disposed at the third station, and the second laser assembly is disposed at the fourth station.

According to some embodiments of the invention, the solar cell processing device further comprises a loading and unloading mechanism, wherein the loading and unloading mechanism is used for loading and unloading the first station, the first positioning component is arranged at the second station, the first laser component is arranged at the third station, the second positioning component is arranged at the third station, and the second laser component is arranged at the fourth station.

According to some embodiments of the invention, the solar cell processing device further comprises a loading and unloading mechanism, a loading and unloading conveyor belt and a discharging conveyor belt, wherein the loading and unloading mechanism is arranged between the loading conveyor belt and the unloading conveyor belt and comprises a first swing arm and a second swing arm which are vertically connected, and the first swing arm and the second swing arm swing by taking a joint as a rotation center, so that the first swing arm moves from the loading conveyor belt to the first station and the second swing arm moves from the first station to the discharging conveyor belt.

According to some embodiments of the present invention, the ends of the first swing arm and the second swing arm are provided with an absorbing member, and the absorbing member is used for absorbing and fixing the solar cell, wherein the size of the absorbing member is smaller than that of the solar cell, so that the outline of the solar cell can be exposed out of the absorbing member;

the first positioning component is arranged on the first station to position the outline of the solar cell.

According to some embodiments of the invention, the turntable mechanism comprises four supporting arms extending along the radial direction, the tail ends of the supporting arms are provided with supporting parts for supporting the solar cell, a gap exists between each two adjacent supporting arms, and the turntable mechanism has a first beat and a second beat;

the first laser component and the second laser component comprise a laser and a laser detector, the laser and the laser detector are respectively positioned at two sides of a rotation plane of the turntable mechanism, and each supporting part is positioned on a connecting line of the laser and the laser detector in response to the rotation of the turntable mechanism by the first beat; and responding to the rotation of the turntable mechanism to rotate the second beat, wherein the gap is positioned on the connecting line of the laser and the laser detector so that laser emitted by the laser irradiates the laser detector.

According to some embodiments of the invention, the first positioning component and the second positioning component are both visual positioning components, the first positioning component comprises a first CCD camera, and the shooting range of the first CCD camera is not smaller than the area of the solar cell; the second positioning component comprises a plurality of second CCD cameras, and each second CCD camera is arranged corresponding to each positioning mark.

According to some embodiments of the invention, each of the second CCD cameras is disposed around the laser of the first laser assembly when the first laser assembly and the second positioning assembly are disposed at the same station.

According to some embodiments of the invention, the solar cell processing device comprises a conveyor belt, and the first positioning assembly, the first laser assembly, the second positioning assembly and the second laser assembly are sequentially arranged along the conveying direction of the conveyor belt.

The solar cell processing method according to the second aspect of the embodiment of the present invention is applied to the solar cell processing device of any one of the above embodiments, and the solar cell processing method includes the steps of:

transmitting a solar cell to a first positioning assembly, wherein the first positioning assembly acquires first image information according to the outline of the solar cell;

the first laser component processes a positioning mark on the solar cell according to the first image information;

transmitting the solar cell to the second positioning assembly, wherein the second positioning assembly acquires second image information according to the positioning mark;

and the second laser component processes the region to be processed of the solar cell according to the second image information.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The invention is further described with reference to the accompanying drawings and examples, in which:

fig. 1 is a schematic structural diagram of a solar cell processing device according to an embodiment of the present invention;

fig. 2 is a schematic top view of a solar cell processing apparatus according to an embodiment of the present invention;

fig. 3 is a schematic view of a solar cell processed by a first laser component according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a turntable mechanism according to an embodiment of the present invention;

fig. 5 is a schematic flow chart of a solar cell processing method according to an embodiment of the invention.

Reference numerals:

a first positioning assembly 100;

a first laser assembly 200; a laser detector 210; a laser 220;

a second positioning assembly 300;

a second laser assembly 400;

a solar cell 500; a region to be processed 510; positioning the mark 520;

a turntable mechanism 600; a first station 610; a second station 620; a third station 630; a fourth station 640; a support arm 650; gap 660;

the feeding and discharging mechanism 700; a first swing arm 710; a second swing arm 720; an absorbent member 730;

a loading conveyor 800; and a blanking conveyor 850.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a number is one or more, the meaning of a number is two or more, and greater than, less than, exceeding, etc. are understood to exclude the present number, and the meaning of a number is understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

In the description of the present invention, the descriptions of the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The embodiment of the first aspect of the application provides a solar cell processing device, which comprises two positioning assemblies and two laser assemblies, wherein the positioning assemblies are used for realizing the positioning of a solar cell 500 and providing a reference for the processing of the laser assemblies. It should be noted that the positioning components are mainly divided into two types, and the first type is that the position of the solar cell 500 is changed to make the solar cell 500 be at a proper position in the processing station, so as to ensure the processing precision of the laser component, for example, the clamping jaw is abutted to adjust the position of the solar cell 500 to realize centering, or the positioning of the solar cell 500 on the processing station is realized through the positioning block, the positioning plate, and the like. The second method is to acquire the position information of the solar cell 500 through a vision mechanism or a sensor, and provide the position information to the laser assembly so that the laser assembly can adjust the processing area of the laser assembly, thereby ensuring the processing precision of the laser assembly. The positioning component in the embodiment of the application can be either the first one or the second one.

The laser assembly emits laser light through the laser 220 to process the solar cell 500, and it should be noted that the solar cell processing device of the present application aims to provide a layout structure capable of realizing high-precision laser processing, so that the layout structure can be applied to multiple processes in the processing and manufacturing process of the solar cell 500. For example, the processing apparatus of the present application may be applied to a sintering process of the solar cell 500, or to an oxidation process of the solar cell 500, or to a dicing chamfering process of the solar cell 500.

Specifically, as shown in fig. 1 to 3, the first positioning assembly 100 is used for positioning the outer contour of the solar cell 500, it is understood that the outer contour of the solar cell 500 is a rough reference, and there is a large dimensional deviation, and therefore, if the outer contour of the solar cell 500 is directly used for processing, the position accuracy of the whole processing area may be greatly affected. To solve this problem, in the present application, after the first positioning module 100 performs positioning based on the outer contour of the solar cell 500, the first laser module 200 does not perform the whole processing of the area to be processed 510, but processes the positioning mark 520 on the solar cell 500, where the positioning mark 520 may be located in the area to be processed 510 or may be located outside the area to be processed 510, and the positioning mark 520 may be in a shape of a circle, a triangle, a direction, or the like, so as to be positioned by the subsequent second positioning module 300. Taking the embodiment shown in fig. 3 as an example, square mark points (mark points) are processed at four corners of the region to be processed 510 as positioning marks 520.

It should be noted that, since the first laser component 200 needs to use the positioning of the first positioning component 100 as a reference, the first laser component 200 is disposed downstream of the first positioning component 100, that is, the first positioning component 100 and the first laser component 200 are sequentially disposed on different stations along the transmission direction of the solar cell 500, and after the positioning of the first positioning component 100 is completed, the solar cell 500 is conveyed to the position of the first laser component 200 for processing the positioning mark 520. Alternatively, the first laser component 200 and the first positioning component 100 are disposed at the same station, that is, after the positioning of the first positioning component 100 is completed, the solar cell 500 does not need to be moved, so that the processing of the positioning mark 520 can be completed.

The second positioning component 300 is used for positioning the positioning mark 520 processed by the first processing component, that is, the second positioning component 300 uses the positioning mark 520 as a reference, and by using the processed positioning mark 520 as a precise reference, the positioning accuracy of the second positioning component 300 can be greatly improved. The second positioning assembly 300 needs to be disposed downstream of the first laser assembly 200, or alternatively, the second positioning assembly 300 and the first positioning assembly 100 are disposed at the same station.

The second laser assembly 400 performs a full-sheet processing on the region to be processed 510 of the solar cell 500 based on the precise positioning of the second positioning assembly 300. Therefore, the second laser assembly 400 needs to be disposed downstream of the second positioning assembly 300, or the second laser assembly 400 and the second positioning assembly 300 are disposed at the same station.

In summary, the present application performs edge positioning and point positioning through two sets of positioning components, and the first positioning component 100 performs rough reference positioning based on the profile of the solar cell 500, so that the first processing component processes the positioning mark 520. The second positioning assembly 300 converts the reference to position the positioning mark 520 as a precise reference so as to ensure the machining precision of the second machining assembly for the whole sheet machining. Through the conversion of the reference, the profile of the solar cell 500 is prevented from being directly used as a final processing reference, so that the position accuracy of a processing area on the solar cell 500 is greatly improved, the laser processing out-of-tolerance caused by large profile size deviation is avoided, and the solar cell processing device is applied to the working procedures of laser sintering, oxidation, cutting and the like, and the excellent rate of the solar cell 500 can be greatly improved.

In some embodiments, the solar cell processing apparatus includes a turntable mechanism 600, as shown in fig. 1 and 2, where the turntable mechanism 600 is provided with a first station 610, a second station 620, a third station 630 and a fourth station 640 along the circumference of the turntable mechanism 600, and the turntable mechanism 600 rotates to drive the solar cell 500 to pass through the first station 610, the second station 620, the third station 630 and the fourth station 640 in sequence, and it can be understood that a positioning component or a laser component is provided on the stations, the stations are not moved, and the turntable mechanism 600 drives the solar cell 500 to move to switch the stations. It will be appreciated that the provision of the turntable mechanism 600 enables the length of the overall processing apparatus to be shortened.

It will be appreciated that the first positioning assembly 100, the second laser assembly 400, the second positioning assembly 300, and the second laser assembly 400 are arranged in the order described above to be distributed over the first station 610, the second station 620, the third station 630, and the fourth station 640. It should be noted that the above sequence means that "the first laser component 200 is disposed downstream of the first positioning component 100, or is disposed at the same station as the first positioning component 100; the second positioning assembly 300 is disposed downstream of the first laser assembly 200 or at the same station as the first positioning assembly 100; the second laser assembly 400 is disposed downstream of the second positioning assembly 300 or at the same station as the second positioning assembly 300.

Further, in some embodiments, each positioning assembly and laser assembly are disposed on different processing stations, respectively, to clarify the processing duties of each processing station. Specifically, as shown in fig. 1 and 2, the first positioning assembly 100 is disposed at the first station 610, and the first positioning assembly 100 is a visual positioning assembly, so that image information of an outer contour of the solar cell 500 can be obtained. The first laser assembly 200 is disposed on the second station 620, and the first positioning assembly 100 is in communication connection with the first laser assembly 200, so as to receive the image information obtained by the first positioning assembly 100, and adjust the position of the laser 220 or parameters such as an emitting angle and a focal length of the laser 220 based on the image information, so that four positioning marks 520 are laser processed on the solar cell 500.

The second positioning assembly 300 is disposed on the third station 630, and the second positioning assembly 300 is also a visual positioning assembly, so that image information of the positioning mark 520 on the solar cell 500 can be obtained. The second laser assembly 400 is disposed on the fourth station 640, and the second positioning assembly 300 is in communication connection with the second laser assembly 400, so as to receive the image information obtained by the second positioning assembly 300, and adjust the position of the laser 220 or the parameters such as the exit angle and the angle of the laser 220 based on the image information, thereby realizing the whole processing of the to-be-processed area 510 on the solar cell 500.

It should be noted that the solar cell processing apparatus further includes a loading and unloading mechanism 700, where the loading and unloading mechanism 700 is used for loading and unloading the first station 610. It should be noted that, loading and unloading of the turntable mechanism 600 all occur at the first station 610. The layout of the various components on the carousel mechanism 600 may vary depending on the loading and unloading mechanism 700.

For example, referring to fig. 2, the solar cell processing apparatus further includes a feeding conveyor 800 and a discharging conveyor 850, the feeding and discharging mechanism 700 is disposed between the feeding conveyor 800 and the discharging conveyor 850, the feeding and discharging mechanism 700 includes a first swing arm 710 and a second swing arm 720, and the first swing arm 710 and the second swing arm 720 are vertically connected and swing around the connection point as a rotation center. Therefore, in the process that the first swing arm 710 is moved to the first station 610 by the feeding conveyor belt 800 for feeding, the second swing arm 720 is moved to the discharging conveyor belt 850 by the first station 610 to take away the processed solar cell 500 on the first station 610. The first swing arm 710 is then moved back to the loading conveyor 800 by the first station 610 for reclaiming, and the second swing arm 720 is moved back to the first station 610 by the unloading conveyor 850 for reclaiming. It will be appreciated that, whether the loading and unloading mechanism 700 of the L-shaped swing arm is in the feeding state or the material taking state, the adsorbing member 730 of one swing arm is stopped at the first station 610, so that the positioning of the first positioning assembly 100 is affected and interfered. For this purpose, the first positioning assembly 100 is disposed on the second station 620, the first laser assembly 200 and the second positioning assembly 300 are disposed on the third station 630, and the second laser assembly 400 is disposed on the fourth station 640.

In other embodiments, although the feeding and discharging structure of the L-shaped swing arm is adopted, the sizes of the suction members 730 at the ends of the first swing arm 710 and the second swing arm 720 are smaller than those of the solar cell 500, so that when the suction members 730 are parked on the first station 610, the outer contour of the solar cell 500 can be exposed out of the suction members 730, that is, as shown in fig. 2, the projection area of the suction members 730 is located in the projection area of the solar cell 500. Thus, the first positioning assembly 100 may also be disposed at the first station 610.

Alternatively, in other embodiments, the loading and unloading is performed by using a bottom support manner, so that the positioning of the first positioning component 100 is not interfered, and further, the first positioning component 100 may also be disposed on the first station 610.

Since the laser is attenuated by long-time operation, in order to avoid influencing the processing precision after the laser is attenuated, in some embodiments, a detection mechanism for laser parameters is further provided. Specifically, as shown in fig. 4, the turntable mechanism 600 includes four support arms 650 extending in a radial direction, the ends of the support arms 650 are provided with support portions for supporting the solar cell 500, and a gap 660 exists between each adjacent support arm 650. It should be noted that, in the turntable mechanism 600, for example, four stations are provided on the turntable mechanism 600 as shown in fig. 2, and each time the turntable mechanism 600 is driven by a motor to rotate 90 °, the solar cell 500 on each station can be switched to the next station. The turntable mechanism 600 has a first beat, and a single rotation of the turntable mechanism 600 by a preset angle can be set as the first beat, wherein the single rotation can switch each solar cell 500 from the current station to the next station.

As shown in fig. 1 and fig. 4, the first laser assembly 200 and the second laser assembly 400 each include a laser 220 and a laser detector 210, where the laser 220 and the laser detector 210 are respectively located at two sides of a rotation plane of the turntable mechanism 600, and it should be explained that the rotation plane refers to a plane where each solar cell 500 on the turntable mechanism 600 is driven to perform a circular motion. Taking the embodiment shown in fig. 4 as an example, the laser 220 is disposed on the upper side of the rotation plane, and the laser detector 210 is disposed on the lower side of the rotation plane.

In some embodiments, if the detection speed of the laser detector 210 is faster, during the first beat of the turntable mechanism 600, since the supporting portion rotates to a position between the stations at this time, the laser emitted by the laser 220 at each laser assembly can be irradiated to the laser detector 210, so that the laser detector 210 detects the laser parameters, thereby monitoring the attenuation degree of the laser, and when the attenuation exceeds a certain range, the processing device sends out warning information to remind the operator to stop processing.

In other embodiments, the laser detector 210 cannot complete the detection during the first beat switching of the position of each solar cell 500 by the turntable mechanism 600 due to the faster rotation speed of the turntable mechanism 600. After the rotation mechanism rotates the first beat, each supporting portion is located on a connecting line between the laser 220 and the laser detector 210, so that the laser 220 can process the solar cell 500 on the supporting portion, at this time, a laser light path of the laser 220 is blocked by the solar cell 500 and cannot irradiate the laser detector 210, and at this time, the laser detector 210 cannot perform detection work.

For this reason, the turntable mechanism 600 also has a second beat, and the rotation stroke of the second beat may be smaller than the rotation stroke of the first beat, or may be larger than the rotation stroke of the first beat, and still taking the mechanism shown in fig. 2 as an example, the first laser assembly 200 is disposed above the second station 620, and the laser detector 210 is disposed below the second station 620, so that when the turntable mechanism 600 drives the supporting arms 650 to rotate by an angle other than 90 ° and an integer multiple of 90 °, the gap 660 between the supporting arms 650 is located on the connection line between the laser 220 and the laser detector 210 (as shown in fig. 4), so that the laser emitted by the laser 220 can irradiate the laser detector 210.

Further, the rotation stroke of the second beat is generally set to be half of the rotation stroke of the first beat, so that the solar cell 500 is rotated to a position between the respective work stations by the first and second beats to enable the laser light to be irradiated to the laser detector 210, and the solar cell 500 is rotated to the respective work stations by the second and second beats to be positioned or processed. It should be noted that the attenuation degree detection frequency of the laser is not set too high, and the detection is not required to be performed every time the turntable mechanism 600 rotates.

In some embodiments, the first positioning component 100 and the second positioning component 300 are both visual positioning components, specifically, the first positioning component 100 includes a CCD camera, which is a full-frame camera, and the shooting range of the CCD camera is not smaller than the area of the solar cell 500, so that one CCD camera can obtain the image information of the outer contour of the solar cell 500, and for convenience of subsequent description, the CCD camera of the first positioning component 100 is named as a first CCD camera. To improve positioning accuracy, and avoid a situation in which individual machining deviations are large, the first laser assembly 200 often machines a plurality of positioning marks 520. Fig. 3 shows the solar cell 500 after the first laser assembly 200 is processed, and positioning marks 520 are respectively processed at four corners of the area 510 to be processed. It should be noted that, unlike the first CCD camera, the CCD camera (hereinafter referred to as a second CCD camera for convenience of distinction) of the second positioning assembly 300 employs a plurality of second CCD cameras with small picture sizes to position the positioning marks 520 one by one, and each second CCD camera is disposed corresponding to each positioning mark 520.

It will be appreciated that in the embodiment shown in fig. 3, the positioning mark 520 is located outside the area 510 to be processed, and the corresponding second CCD camera is disposed at a position that does not interfere with the laser 220 of the first laser assembly 200 or the second laser assembly 400, so that, based on the situation that the first laser assembly 200 and the second positioning assembly 300 are disposed at the same station in the above embodiment, each second CCD camera is disposed around the laser 220 of the first laser assembly 200. Image information acquisition of the positioning mark 520 can be performed after the first laser assembly 200 is finished.

In other embodiments, the stations are disposed on the linear conveyor belt, so that the first positioning component 100, the first laser component 200, the second positioning component 300 and the second laser component 400 are sequentially disposed along the conveying direction of the conveyor belt according to the above sequence, and the linear structure has the advantage that the feeding and discharging mechanism 700 is not required to be disposed to transfer the solar cells 500 on the linear conveyor belt to the turntable mechanism 600, so that the overall structure is simpler.

The embodiment of the second aspect of the present application further provides a solar cell processing method, which can be applied to the solar cell processing device mentioned in any one of the foregoing embodiments, and specifically includes the following steps:

s100, transmitting the solar cell 500 to a first positioning component 100, wherein the first positioning component 100 acquires first image information according to the outline of the solar cell 500;

s200, processing a positioning mark 520 on the solar cell 500 by the first laser component 200 according to the first image information;

s300, transmitting the solar cell 500 to a second positioning assembly 300, and acquiring second image information by the second positioning assembly 300 according to the positioning mark 520;

and S400, the second laser assembly 400 processes the region 510 to be processed of the solar cell 500 according to the second image information.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention. Furthermore, embodiments of the invention and features of the embodiments may be combined with each other without conflict.

Claims (11)

1. Solar wafer processingequipment, its characterized in that includes:

a first positioning assembly (100), the first positioning assembly (100) being used for positioning the profile of the solar cell (500);

a first laser component (200), wherein the first laser component (200) is used for processing a positioning mark (520), the first laser component (200) is arranged at the downstream of the first positioning component (100), or the first laser component (200) and the first positioning component (100) are arranged on the same station;

a second positioning assembly (300), wherein the second positioning assembly (300) is used for positioning the positioning mark (520), the second positioning assembly (300) is positioned downstream of the first laser assembly (200), or the second positioning assembly (300) and the first positioning assembly (100) are arranged on the same station;

the second laser component (400), second laser component (400) are used for processing to wait to process regional (510) of solar wafer (500), second laser component (400) are located second locating component (300) low reaches, perhaps, second laser component (400) with second locating component (300) set up on same station.

2. The solar cell processing device according to claim 1, wherein the solar cell processing device comprises a turntable mechanism (600), the turntable mechanism (600) is provided with a first station (610), a second station (620), a third station (630) and a fourth station (640) along the circumference thereof, and the turntable mechanism (600) rotates to drive the solar cell (500) to sequentially pass through the first station (610), the second station (620), the third station (630) and the fourth station (640);

the first positioning assembly (100), the first laser assembly (200), the second positioning assembly (300) and the second laser assembly (400) are sequentially arranged on the first station (610), the second station (620), the third station (630) and the fourth station (640).

3. The solar cell processing apparatus according to claim 2, wherein the first positioning assembly (100) is disposed at the first station (610), the first laser assembly (200) is disposed at the second station (620), the second positioning assembly (300) is disposed at the third station (630), and the second laser assembly (400) is disposed at the fourth station (640).

4. The solar cell processing apparatus according to claim 2, further comprising a loading and unloading mechanism (700), wherein the loading and unloading mechanism (700) is configured to load and unload the first station (610), the first positioning component (100) is disposed at the second station (620), the first laser component (200) is disposed at the third station (630), the second positioning component (300) is disposed at the third station (630), and the second laser component (400) is disposed at the fourth station (640).

5. The solar cell processing device according to claim 2, further comprising a loading and unloading mechanism (700), a loading conveyor belt (800) and a unloading conveyor belt (850), wherein the loading and unloading mechanism (700) is disposed between the loading conveyor belt (800) and the unloading conveyor belt (850), the loading and unloading mechanism (700) comprises a first swing arm (710) and a second swing arm (720) which are vertically connected, and the first swing arm (710) and the second swing arm (720) swing with a connection part as a rotation center, so that the first swing arm (710) moves from the loading conveyor belt (800) to the first station (610) and the second swing arm (720) moves from the first station (610) to the unloading conveyor belt (850).

6. The solar cell processing apparatus according to claim 5, wherein the ends of the first swing arm (710) and the second swing arm (720) are each provided with an absorbing member (730), the absorbing member (730) is used for absorbing and fixing the solar cell (500), wherein the absorbing member (730) has a smaller size than the solar cell (500) so that the outline of the solar cell (500) can be exposed out of the absorbing member (730);

the first positioning assembly (100) is arranged on the first station (610) to position the outline of the solar cell (500).

7. The solar cell processing apparatus according to any one of claims 2 to 6, wherein the turntable mechanism (600) includes four support arms (650) extending in a radial direction, the ends of the support arms (650) are provided with support portions for supporting the solar cell (500), a gap (660) exists between each adjacent support arm (650), and the turntable mechanism (600) has a first beat and a second beat;

the first laser assembly (200) and the second laser assembly (400) comprise a laser (220) and a laser detector (210), the laser (220) and the laser detector (210) are respectively positioned at two sides of a rotation plane of the turntable mechanism (600), and each supporting part is positioned on a connecting line of the laser (220) and the laser detector (210) in response to the rotation of the turntable mechanism (600) by the first beat; in response to the turntable mechanism (600) rotating the second beat, the gap (660) is located on a line connecting the laser (220) and the laser detector (210) so that laser light emitted from the laser (220) is irradiated to the laser detector (210).

8. The solar cell processing apparatus according to claim 1, wherein the first positioning assembly (100) and the second positioning assembly (300) are both visual positioning assemblies, the first positioning assembly (100) includes a first CCD camera, and a photographing range of the first CCD camera is not smaller than an area of the solar cell (500); the positioning marks (520) are multiple, the second positioning assembly (300) comprises multiple second CCD cameras, and each second CCD camera is arranged corresponding to each positioning mark (520).

9. The solar wafer processing apparatus of claim 8, wherein each of the second CCD cameras is disposed around the laser (220) of the first laser assembly (200) when the first laser assembly (200) and the second positioning assembly (300) are disposed at the same station.

10. The solar cell processing device according to claim 1, wherein the solar cell processing device comprises a conveyor belt, and the first positioning component (100), the first laser component (200), the second positioning component (300) and the second laser component (400) are sequentially arranged along the conveying direction of the conveyor belt.

11. A solar cell processing method, characterized by being applied to the solar cell processing apparatus according to any one of claims 1 to 10, comprising the steps of:

transmitting a solar cell (500) to a first positioning component (100), wherein the first positioning component (100) acquires first image information according to the outline of the solar cell (500);

the first laser component (200) processes a positioning mark (520) on the solar cell (500) according to the first image information;

transmitting the solar cell (500) to the second positioning assembly (300), wherein the second positioning assembly (300) acquires second image information according to the positioning mark (520);

the second laser component (400) processes the region (510) to be processed of the solar cell (500) according to the second image information.