CN221363177U - Laser sintering device and laser sintering automation equipment - Google Patents

Abstract

The utility model discloses a laser sintering device and laser sintering automation equipment. The laser sintering device comprises a bearing table, a laser and a positioning assembly, wherein the bearing table is used for bearing a solar cell; the laser is arranged above the bearing table; the positioning assembly is arranged at the lower side of the bearing table and comprises a rotating piece, at least two sliding pieces and at least two connecting rods, one end of each connecting rod is hinged with the rotating piece, the other end of each connecting rod is hinged with the sliding piece, the connecting rods are sequentially arranged along the circumferential direction of the rotating piece, and when the rotating piece rotates, each sliding piece is driven to linearly move; the sliding piece is also connected with positioning pieces which extend upwards to be higher than the top surface of the bearing table, and each positioning piece can move close to the bearing table along with the movement of the sliding piece so that the positioning pieces can be abutted with the side edges of the solar cell. The laser sintering device adjusts the position of the solar cell by arranging the positioning component, so that the alignment of the probe and the irradiation of laser are facilitated.

Description

Laser sintering device and laser sintering automation equipment

Technical Field

The utility model relates to the field of solar cell production and processing, in particular to a laser sintering device and laser sintering automation equipment.

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, the photoelectric efficiency of the solar cell is remarkably improved by a laser-assisted rapid sintering technology. However, due to the fact that transmission offset exists in the process that the solar cell moves from the feeding station to the processing station, on one hand, the alignment of the probe and the grid line on the solar cell is not accurate, on the other hand, deviation occurs between the laser irradiation area and the sintering area, and therefore the yield of the solar cell is not high.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the laser sintering device, and the position of the solar cell on the bearing table can be adjusted through the positioning assembly, so that the alignment of the probe and the irradiation of laser are facilitated, and the yield of the sintering process of the solar cell is improved.

The utility model also provides laser sintering automation equipment with the laser sintering device.

According to an embodiment of the first aspect of the present utility model, a laser sintering apparatus includes:

the bearing table is used for bearing the solar cell;

The laser is arranged above the bearing table;

The positioning assembly is arranged on the lower side of the bearing table and comprises a rotating piece, at least two sliding pieces and at least two connecting rods, one end of each connecting rod is hinged with the rotating piece, the other end of each connecting rod is hinged with the sliding piece, the connecting rods are sequentially arranged along the circumferential direction of the rotating piece, and when the rotating piece rotates, each sliding piece is driven to linearly move;

The sliding piece is further connected with positioning pieces, the positioning pieces extend upwards to be higher than the top surface of the bearing table, and each positioning piece can move close to the bearing table along with the movement of the sliding piece so that the positioning pieces can be abutted to the side edges of the solar cell.

The laser sintering device provided by the embodiment of the utility model has at least the following beneficial effects:

The laser sintering device converts the rotation of the rotating member into the linear movement of the sliding member through the connecting rods, and a plurality of connecting rods are arranged along the circumferential direction of the rotating member, so that when the rotating member rotates positively or reversely, the sliding members can be driven to move along the direction close to the rotating member or along the direction far away from the rotating member. And because the locating piece on the sliding piece can be abutted with the solar cell, and the solar cell is pushed to move to adjust the position of the locating piece, the position of the solar cell on the laser sintering station is adjusted, the position consistency of the solar cell on the bearing table is improved, the alignment of the probe and the irradiation of laser are facilitated, and the yield of laser sintering processing is improved.

According to some embodiments of the utility model, the bearing table is provided with an avoidance groove, the avoidance groove is used for avoiding a transmission belt, and when the transmission belt is arranged in the avoidance groove in a penetrating manner, the top surface of the transmission belt is higher than the top surface of the bearing table;

The laser sintering device further comprises a driving assembly, wherein the driving assembly is connected with the bearing table and the positioning assembly, and the driving assembly can drive the bearing table and the positioning assembly to move upwards for a first distance so that the bearing table can support the solar cell.

According to some embodiments of the utility model, the top surface of the carrying platform is provided with a conductive part, the laser sintering device further comprises a probe assembly arranged above the carrying platform, and the probe assembly and the carrying platform can be relatively close until the probe assembly is abutted with the solar cell so that the probe assembly and the conductive part are electrically connected through the solar cell.

According to some embodiments of the utility model, the laser sintering device further comprises a driving assembly, wherein the driving assembly is connected with the bearing table and the positioning assembly, and the driving assembly can drive the bearing table and the positioning assembly to move upwards for a second distance so as to enable the probe assembly to be abutted with the solar cell.

According to some embodiments of the utility model, the positioning assembly comprises four sliding members and four connecting rods, wherein the sliding members are arranged in pairs, so that each positioning member is respectively arranged corresponding to four sides of the bearing platform.

According to some embodiments of the utility model, the laser sintering device further comprises a mounting platform, wherein the mounting platform is arranged below the bearing platform and is connected with the bearing platform through a plurality of support columns;

The positioning assembly is arranged on the mounting platform, any one of a sliding rail or a sliding groove is arranged on the mounting platform, and the sliding piece is provided with the other one of the sliding rail or the sliding groove so as to limit the sliding piece to move linearly through the cooperation of the sliding rail and the sliding groove.

According to some embodiments of the utility model, one side of one of the sliding members is provided with two sensors, the two sensors are sequentially disposed along a moving direction of the sliding member, and the sliding member is disposed between the two sensors so as to limit a moving stroke of the sliding member by the two sensors.

According to some embodiments of the utility model, at least one positioning piece is connected to each sliding piece, and a soft portion is arranged at one end of the positioning piece, which is abutted against the solar cell.

According to a second aspect of the present utility model, an embodiment of a laser sintering automation device includes:

A feeding device;

An auxiliary positioning device;

The transmission device comprises a transmission belt for bearing the solar cell;

the laser sintering device according to any of the above embodiments;

A blanking device;

The feeding device, the auxiliary positioning device, the laser sintering device and the discharging device are sequentially arranged along the transmission direction of the solar cell.

According to some embodiments of the utility model, the surface of the conveyor belt for supporting the solar cell is provided with a plurality of adsorption holes, and each adsorption hole is arranged along the conveying direction.

Additional aspects and advantages of the utility model 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 utility model.

Drawings

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

FIG. 1 is a schematic view of a laser sintering device according to an embodiment of the present utility model;

FIG. 2 is an exploded view of a laser sintering device according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a positioning assembly according to an embodiment of the present utility model;

fig. 4 is an assembly schematic diagram of a positioning assembly, a bearing table and a conveyor belt according to an embodiment of the utility model.

Reference numerals:

A laser sintering device 100;

a carrying table 110; an avoidance groove 111; a conductive portion 112;

A laser 120;

A positioning assembly 130; a rotating member 131; a slider 132; a link 133; a positioning piece 134; a soft portion 1341; a mounting platform 135; support column 136; a sensor 137; a motor 138;

a drive assembly 140; a driving member 141; a guide 142;

A probe assembly 150;

a transmission device 200; a conveyor belt 210; adsorption holes 211;

Solar cell 10.

Detailed Description

Embodiments of the present utility model 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 utility model.

In the description of the present utility model, 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 utility model 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 utility model.

In the description of the present utility model, 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 utility model, 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 utility model 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 utility model, 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 utility model. 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.

An embodiment of the present application provides a laser sintering device 100, as shown in fig. 1 to 4, which includes a carrying table 110 and a laser 120, it is to be understood that the carrying table 110 is used for supporting a solar cell 10, and the solar cell 10 is typically a silicon wafer, and may be carried onto the carrying table 110 by a conveying device 200 such as a conveying belt 210 or a manipulator, or may be directly fed onto the carrying table 110 by a manual work.

The laser 120 is disposed above the carrier 110, and is used for emitting laser to irradiate the solar cell 10 to assist sintering. The laser-assisted rapid sintering technology can improve the conversion efficiency of the solar cell 10, and can enable the paste on the front side of the solar cell 10 and the substrate of the solar cell 10 to form better ohmic contact by performing rapid sintering treatment on the metal paste on the front side of the solar cell 10 through laser assistance. Meanwhile, the charging effect is utilized to optimize the grid line electrode, improve the contact resistance and realize the output of the high-efficiency solar photovoltaic cell, thereby remarkably improving the photoelectric efficiency of the solar cell 10. Thus, it is necessary to ensure that the position of the solar cell 10 on the stage 110 is within the irradiation range of the laser 120.

Taking the example that the solar cell 10 is carried onto the carrying table 110 by the conveying device 200, during the conveying process of the solar cell 10, deviations in the conveying direction or in the direction perpendicular to the conveying direction easily occur due to shaking, handover, etc. of the conveying device 200, so that the position accuracy is poor when the solar cell 10 moves onto the carrying table 110, and if the laser sintering is directly performed, machining defects easily occur in the solar cell 10. To this end, the laser sintering device 100 according to the embodiment of the present application further includes a positioning component 130.

The positioning assembly 130 is disposed on the lower side of the carrying platform 110, and specifically, the positioning assembly 130 may be disposed on the bottom surface of the carrying platform 110, or may be disposed on the mounting platform 135 as shown in fig. 1 and 3, where the mounting platform 135 is disposed below the carrying platform 110 and connected to the carrying platform 110 as an integral structure. The positioning assembly 130 includes a rotating member 131, at least two sliding members 132 and at least two connecting rods 133, it is understood that the rotating member 131 is connected with a motor 138 as shown in fig. 2 and 3, and the motor 138 is disposed on the other side of the mounting platform 135 and is connected with the rotating member 131 by penetrating through the mounting platform 135, so as to drive the rotating member 131 to rotate forward or backward. One end of each link 133 is hinged to the rotary member 131, and the other end is hinged to the slider 132. The slider 132 is slidably connected to the mounting platform 135 and can perform linear movement in a set direction.

As shown in fig. 3 and 4, each link 133 is sequentially connected to the outer edge of the rotating member 131 in the circumferential direction of the rotating member 131, so that rotation of the rotating member 131 can drive the link 133 to swing, and the swing of the link 133 drives the sliding member 132 to linearly move. The sliding member 132 is connected with a positioning member 134, where the positioning member 134 is vertically disposed, and one end of the positioning member is connected with the sliding member 132, and the other end extends upward until the positioning member is higher than the top surface of the carrying platform 110. It will be appreciated that the height of the free ends of the positioning members 134 corresponds to the height at which the solar cell 10 is placed on the carrier 110. When the rotating member 131 rotates forward, the connecting rod 133 drives the sliding member 132 to approach in the direction of the rotating member 131 and perform linear motion, so that the positioning member 134 on the sliding member 132 moves synchronously with the movement of the sliding member 132, and gradually approaches the carrying table 110, so that the positioning member 134 can abut against the side edge of the solar cell 10 on the carrying table 110, and the solar cell 10 is pushed to move into the laser processing area.

It should be noted that, when the rotating member 131 is reversed, the connecting rod 133 drives the sliding member 132 to perform a linear motion in a direction away from the rotating member 131, so that the positioning member 134 on the sliding member 132 moves away from the carrying table 110, thereby eliminating the limitation on the solar cell 10, and avoiding the positioning member 134 from affecting the subsequent laser sintering process.

For convenience of description, the transmission direction of the solar cell 10 is set to a first direction, and a second direction which is in a horizontal plane and perpendicular to the first direction. In the embodiment shown in fig. 4, because of the high requirement for positioning accuracy, positioning members 134 are provided on both sides of the carrying platform 110 in the first direction and both sides in the second direction to achieve centering positioning.

It will be appreciated that the number and orientation of the slides 132 may vary depending on the particular positioning requirements. For example, in some embodiments, during the transmission process of the solar cell 10, the position accuracy in the first direction is better and the position accuracy in the second direction is worse under the influence of the transmission device 200, so that the positioning assembly 130 needs to adjust the position of the solar cell 10 in the second direction, and further, the positioning assembly 130 includes two sliding members 132, the two sliding members 132 are oppositely disposed, the linear movement direction of the two sliding members is parallel to the second direction, and the two positioning members 134 correspondingly connected to the two sliding members 132 are respectively located at two sides of the carrying platform 110 along the second direction, so that when the rotating member 131 drives, the two positioning members 134 can move towards each other along the second direction, so as to center the solar cell 10 in the second direction. It will be appreciated that the same applies to the position of the solar cell 10 in the first direction if desired.

In addition, or in some embodiments, an L-shaped positioning block is disposed on the carrying platform 110, and the positioning of the solar cell 10 on the carrying platform 110 may also be achieved by using two sliding members 132 perpendicular to the moving direction.

Based on the above, the present application converts the rotation of the rotary member 131 into the linear movement of the sliding member 132 by the link 133, and a plurality of links 133 are provided in the circumferential direction of the rotary member 131, so that the plurality of sliding members 132 can be driven to move in a direction approaching to the rotary member 131 or in a direction separating from the rotary member 131 when the rotary member 131 is rotated forward or backward. The positioning piece 134 on the sliding piece 132 can be abutted with the solar cell 10 and push the solar cell 10 to move, so that the position of the solar cell 10 on the laser sintering station is adjusted, the position consistency of the solar cell 10 on the bearing table 110 is improved, the alignment of the probe and the irradiation of laser are facilitated, and the yield of laser sintering processing is improved.

In some embodiments, as shown in fig. 2 and 4, the transport of the solar cell 10 is performed by a transport device 200. For this purpose, the carrying platform 110 is provided with the avoiding groove 111, and the avoiding groove 111 is used for avoiding the conveying belt 210 of the conveying device 200, as in the embodiment shown in fig. 4, since the conveying device 200 includes two parallel conveying belts 210 to jointly support the solar cell 10, the carrying platform 110 is provided with two avoiding grooves 111 penetrating through the carrying platform 110 along the first direction. It should be noted that, when the transmission belt 210 is inserted into the avoiding groove 111, in order to avoid interference with the side of the carrying table 110 during the process of transferring the solar cell 10 to the carrying table 110, the top surface of the transmission belt 210 (i.e. the surface of the transmission belt 210 for supporting the solar cell 10) is higher than the top surface of the carrying table 110.

In addition, in the embodiment shown in fig. 4, the positioning members 134 are also disposed at two ends of the carrying table 110 along the first direction for centering the solar cell 10 in the first direction, so that, to ensure that the conveying belt 210 can convey the solar cell 10 above the carrying table 110, the top surface of the conveying belt 210 needs to be higher than the top surface of the positioning members 134.

The laser sintering device 100 further includes a driving component 140, specifically, as shown in fig. 1 and 2, the driving component 140 includes a driving component 141 and a guiding component 142, the driving component 141 may be an electric cylinder, an air cylinder, or the like, the bearing table 110 and the positioning component 130 are connected into an integral structure, and the driving component 140 can drive the bearing table 110 and the positioning component 130 to move up or down simultaneously. The guide 142 cooperates with the driving member 141 to guide the movement of the stage 110 and the positioning assembly 130.

It should be noted that, the driving assembly 140 can drive the carrying table 110 and the positioning assembly 130 to move upwards by a first distance and a second distance, when the conveyor belt 210 conveys the solar cell 10 below the laser 120, the driving assembly 140 drives the carrying table 110 to move upwards by the first distance, and the top surface of the carrying table 110 gradually rises to exceed the top surface of the conveyor belt 210, so that the carrying table 110 plays a role of supporting the solar cell 10. At this time, the positioning assembly 130, which rises together with the carrying platform 110, starts to operate, and as illustrated in the embodiment shown in fig. 4, the positioning members 134 around the carrying platform 110 gradually close to achieve centering in the first direction and the second direction. After centering is completed, the rotating member 131 is reversed to gradually move the positioning member 134 away from each other.

In some embodiments, since the solar cell 10 needs to be electrically conductive during the laser sintering process, the conductive portion 112 is disposed on the top surface of the carrier 110, and the conductive portion 112 may be a contact electrode in a small area, or the entire bottom support on the top of the carrier 110 as shown in fig. 2 is made of conductive material such as copper. The laser sintering device 100 further comprises a probe assembly 150, the probe assembly 150 comprises a plurality of probes, the probes 150 can be abutted against the top surface of the solar cell 10, so that the probes are electrically connected with the grid line on the solar cell 10, and the bottom surface of the solar cell 10 is electrically connected with the conductive part 112, so that the probes 150 are electrically connected with the conductive part 112, and the power supply to the solar cell 10 in the sintering process is realized.

It should be noted that the probe assembly 150 and the carrier 110 can move relative to each other, and the probe assembly 150 moves close to the carrier 110 until it abuts against the solar cell 10 on the carrier 110 to achieve conduction, or the probe assembly 150 moves away from the carrier 110 until it is separated from the solar cell 10 on the carrier 110, so as to avoid the probe interfering with the transmission of the solar cell 10. In some embodiments, a drive mechanism is coupled to the probe assembly 150 that can drive the probe assembly 150 up and down. In the embodiment shown in fig. 1 and 2, the driving assembly 140 is connected to the carrying stage 110, and after the driving assembly 140 moves upward by a first distance, the carrying stage 110 and the positioning assembly 130 can be further driven to move upward by a second distance, so that the probe assembly 150 abuts against the solar cell 10.

It should be noted that, after the driving assembly 140 moves upward by the first distance, the carrier 110 carries the solar cell 10, and the positioning assembly 130 centers the solar cell 10, and the probe assembly 150 is not in contact with the solar cell 10 to avoid the probe from scratching the top surface of the solar cell 10. After centering is completed, the driving assembly 140 continues to move upwards by a second distance, so that the solar cell 10 is abutted with the probe assembly 150, and electrical conduction is achieved.

Therefore, the laser sintering device 100 with the structure does not need to be provided with a plurality of driving mechanisms in the vertical direction, and the two sections of displacement of one driving assembly 140 are respectively used for realizing centering positioning of the solar cell 10 and abutting conduction of the probe assembly 150, so that the structure is compact and the cost is lower.

In some embodiments, the positioning assembly 130 includes four sliding members 132 and four connecting rods 133, as shown in fig. 3, the four sliding members 132 are disposed in pairs, wherein the moving direction of two sliding members 132 is parallel to the first direction, and the positioning members 134 on the sliding members 132 are disposed at two ends of the carrying platform 110 along the first direction. The moving directions of the other two sliding members 132 are parallel to the second direction, and the positioning members 134 on the sliding members 132 are disposed at two ends of the carrying platform 110 along the second direction, so that each positioning member 134 is disposed corresponding to four sides of the carrying platform 110, and when the solar cell 10 is conveyed onto the carrying platform 110, the positioning members 134 can move close to the carrying platform 110, thereby implementing centering of the solar cell 10.

It should be noted that, one sliding member 132 is provided with a plurality of positioning members 134. In the embodiment shown in fig. 3, two positioning members 134 are connected to one sliding member 132, and the two positioning members 134 are respectively located at two sides of the sliding member 132. The positioning member 134 is provided with a soft portion 1341 at one end that abuts against the solar cell 10, and in the embodiment shown in fig. 3, the soft portion 1341 is in a shape of a circle, and the soft portion 1341 is made of soft material such as rubber, so that the edge of the solar cell 10 is not damaged when abutting against the edge.

In some embodiments, as shown in fig. 1 to 3, the positioning assembly 130 is disposed on the mounting platform 135, and the mounting platform 135 is disposed below the carrying platform 110 and is connected to the carrying platform 110 through a plurality of support columns 136 to form an integral structure, so that the positioning assembly and the mounting platform can move synchronously under the driving of the driving assembly 140. The mounting platform 135 is connected to the slider 132 through a chute and a rail so that the slider 132 can only move linearly in a set direction. Specifically, either a sliding groove or a sliding rail is provided on the mounting platform 135, and the sliding member 132 is provided with the other sliding groove or the sliding rail, for example, in the embodiment shown in fig. 3, the sliding rail is provided on the mounting platform 135, and the sliding groove is provided on the bottom surface of the sliding member 132.

As shown in fig. 3, two sensors 137 are provided at one side of one of the sliders 132, and the two sensors 137 are sequentially provided along the moving direction of the slider 132. The sensor 137 may be a photoelectric sensor 137, for example, as shown in fig. 3, the sensor 137 is formed with a groove as shown in fig. 3, the upper and lower sidewalls of the groove are respectively provided with a photoelectric emitter and a photoelectric receiver, the slider 132 is provided with a shielding member, and when the shielding member moves with the slider 132 until being inserted into the groove of the sensor 137, signals of the photoelectric emitter and the receiver are interrupted, so that the sensor 137 controls the driving motor 138 of the rotating member 131 to stop rotating, thereby realizing soft limit of the movement of the slider 132. The slider 132 is disposed between the two sensors 137, and the movement stroke of the slider 132 is limited by the soft limit of the two sensors 137.

An embodiment of the second aspect of the present application provides an automatic laser sintering device, which includes a feeding device, an auxiliary positioning device, a transmission device 200, a laser sintering device 100 and a discharging device, where the transmission device 200 is used to implement material conveying between the devices. The feeding device, the auxiliary positioning device, the laser sintering device 100 and the discharging device are sequentially arranged along the transmission direction of the solar cell 10. The conveying device 200 includes a conveying belt 210, and the conveying belt 210 adopts a vacuum adsorption structure, so that the movement accuracy of the solar cell 10 in the conveying process can be significantly improved. Specifically, as shown in fig. 4, the surface of the conveyor belt 210 for supporting the solar cell 10 is provided with a plurality of adsorption holes 211, which can be communicated with an external negative pressure source to form a negative pressure, so that the solar cell 10 plays a role in adsorption and fixation during the conveying process, and the adsorption holes 211 are sequentially arranged along the conveying direction.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model 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 utility model. Furthermore, embodiments of the utility model and features of the embodiments may be combined with each other without conflict.

Claims (10)

1. A laser sintering device, comprising:

The bearing table (110), the bearing table (110) is used for supporting the solar cell (10);

-a laser (120), the laser (120) being arranged above the carrier table (110);

The positioning assembly (130), the positioning assembly (130) is arranged at the lower side of the bearing table (110), the positioning assembly (130) comprises a rotating piece (131), at least two sliding pieces (132) and at least two connecting rods (133), one end of each connecting rod (133) is hinged with the rotating piece (131), the other end of each connecting rod is hinged with the sliding piece (132), the connecting rods (133) are sequentially arranged along the circumferential direction of the rotating piece (131), and when the rotating piece (131) rotates, each sliding piece (132) is driven to linearly move;

The sliding pieces (132) are further connected with positioning pieces (134), the positioning pieces (134) extend upwards to be higher than the top surface of the bearing table (110), and each positioning piece (134) can move along with the movement of the sliding piece (132) close to the bearing table (110), so that the positioning pieces (134) can be abutted to the side edges of the solar cell (10).

2. The laser sintering device according to claim 1, wherein the bearing table (110) is provided with an avoidance groove (111), the avoidance groove (111) is used for avoiding a transmission belt (210), and when the transmission belt (210) is arranged in the avoidance groove (111) in a penetrating manner, the top surface of the transmission belt (210) is higher than the top surface of the bearing table (110);

The laser sintering device (100) further comprises a driving assembly (140), the driving assembly (140) is connected with the bearing table (110) and the positioning assembly (130), and the driving assembly (140) can drive the bearing table (110) and the positioning assembly (130) to move upwards for a first distance so that the bearing table (110) supports the solar cell (10).

3. The laser sintering device according to claim 1, wherein the top surface of the carrying table (110) is provided with a conductive portion (112), the laser sintering device (100) further comprises a probe assembly (150) disposed above the carrying table (110), and the probe assembly (150) and the carrying table (110) can be relatively close until the probe assembly (150) abuts against the solar cell (10), so that the probe assembly (150) and the conductive portion (112) are electrically conducted through the solar cell (10).

4. A laser sintering device according to claim 3, wherein the laser sintering device (100) further comprises a driving assembly (140), the driving assembly (140) being connected to the carrier table (110) and the positioning assembly (130), the driving assembly (140) being capable of driving the carrier table (110) and the positioning assembly (130) to move upwards a second distance to bring the probe assembly (150) into abutment with the solar cell (10).

5. The laser sintering device according to claim 1, wherein the positioning assembly (130) comprises four sliding members (132) and four connecting rods (133), and the sliding members (132) are disposed in pairs, so that each positioning member (134) is disposed corresponding to four sides of the carrying table (110), respectively.

6. The laser sintering device according to claim 1, characterized in that the laser sintering device (100) further comprises a mounting platform (135), the mounting platform (135) being arranged below the carrying table (110) and being connected to the carrying table (110) by means of a number of support columns (136);

The positioning assembly (130) is arranged on the mounting platform (135), any one of a sliding rail or a sliding groove is arranged on the mounting platform (135), and the sliding piece (132) is provided with the other one of the sliding rail or the sliding groove so as to limit the sliding piece (132) to linearly move through the cooperation of the sliding rail and the sliding groove.

7. The laser sintering device according to claim 1, characterized in that one side of one of the slide members (132) is provided with two sensors (137), the two sensors (137) are disposed in order along the moving direction of the slide member (132), and the slide member (132) is disposed between the two sensors (137) so as to limit the moving stroke of the slide member (132) by the two sensors (137).

8. The laser sintering device according to claim 1, wherein at least one positioning member (134) is connected to each sliding member (132), and a soft portion (1341) is provided at an end of the positioning member (134) abutting against the solar cell (10).

9. Laser sintering automation equipment, characterized by includes:

A feeding device;

An auxiliary positioning device;

a transmission device (200), wherein the transmission device (200) comprises a transmission belt (210) for bearing the solar cell (10);

The laser sintering device (100) according to any of claims 1 to 8;

A blanking device;

The feeding device, the auxiliary positioning device, the laser sintering device (100) and the discharging device are sequentially arranged along the transmission direction of the solar cell (10).

10. The laser sintering automation device according to claim 9, characterized in that the conveyor belt (210) is provided with a plurality of suction holes (211) on a surface for supporting the solar cell (10), each suction hole (211) being arranged along the conveying direction.