CN221362696U - Laser sintering automation equipment - Google Patents

Abstract

The utility model discloses laser sintering automation equipment. The laser sintering automation equipment comprises a transmission device, a feeding device, an auxiliary positioning device, a laser sintering device and a discharging device, wherein the transmission device comprises a transmission belt for conveying solar cells; the feeding device comprises a feeding gripper for carrying the solar cell at the feeding level onto a conveying belt; the laser sintering device is positioned at the downstream of the auxiliary positioning device and comprises a laser; the discharging device comprises a discharging gripper for carrying the solar cell on the conveying belt to a discharging position; the auxiliary positioning device comprises a butt clamp assembly and a visual detection assembly, wherein the butt clamp assembly is used for adjusting the position of the solar cell on the transmission belt, and the visual detection assembly is used for acquiring the position information of the solar cell on the transmission belt and is in communication connection with the laser. The device realizes the position adjustment and the positioning of the solar cell before laser sintering, and has higher yield.

Description

Laser sintering automation equipment

Technical Field

The utility model relates to the field of solar cell production and processing, in particular to 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 automation equipment, which can realize the position adjustment and the positioning of the solar cell before the laser sintering, so that the alignment of the probe and the adjustment of the irradiation area of the laser in the subsequent laser sintering process are convenient, and the yield of the laser sintering process is improved.

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

The conveying device comprises a conveying belt for conveying the solar cell;

The feeding device comprises a feeding gripper and a feeding level, wherein the feeding gripper is used for carrying the solar cell at the feeding level onto the conveying belt;

The auxiliary positioning device is connected with the transmission device;

The laser sintering device is connected with the transmission device, and is positioned at the downstream of the auxiliary positioning device along the transmission direction of the solar cell, and comprises a laser;

the discharging device comprises a discharging gripper and a discharging position, wherein the discharging gripper is used for carrying the solar cell on the conveying belt to the discharging position;

The auxiliary positioning device comprises a butt clamp assembly and a visual detection assembly, wherein the butt clamp assembly is used for adjusting the position of the solar cell on the conveyor belt, and the visual detection assembly is used for acquiring the position information of the solar cell on the conveyor belt and is in communication connection with the laser.

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

By arranging the auxiliary positioning device in front of the laser sintering device, the position adjustment and positioning of the solar cell can be realized, so that the alignment of the probe and the adjustment of the laser irradiation area in the subsequent laser sintering process are facilitated, and the yield of the laser sintering process is improved. In addition, the auxiliary positioning device is independent of the laser sintering device, and the solar cell can be conveyed to the laser sintering device for processing by the conveying device after being adjusted and positioned, so that the production beat is faster, and the production efficiency is higher.

According to some embodiments of the utility model, the butt clamp assembly comprises a first driving member and two first positioning members, the two first positioning members are respectively located at two sides of the conveying belt and connected with the first driving member, and the first driving member can drive the two first positioning members to move in opposite directions so that the first positioning members are abutted with the solar cell.

According to some embodiments of the utility model, the laser sintering device comprises a carrying table and a laser, wherein the carrying table can move relative to the conveyor belt so that the carrying table can support the solar cells on the conveyor belt, and the laser is arranged above the carrying table.

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 driving assembly can drive the bearing table to move upwards for a first distance so that the bearing table supports the solar cell;

The top surface of plummer is provided with electrically conductive portion, laser sintering device still including set up in the probe subassembly of plummer top, drive assembly can drive plummer upwards removes the second distance until probe subassembly with solar wafer butt, so that probe subassembly with electrically conductive portion passes through the solar wafer electrical conduction.

According to some embodiments of the utility model, the laser sintering automation device comprises at least two conveying devices, at least two auxiliary positioning devices and at least two laser sintering devices, wherein each conveying device is connected with one auxiliary positioning device and one laser sintering device, the feeding device can convey the solar cell to any conveying belt, and the discharging device can convey the solar cell to the discharging position on any conveying belt.

According to some embodiments of the utility model, the laser sintering automation device further comprises a turn-over device, the laser sintering automation device comprises two auxiliary positioning devices and two laser sintering devices, and the transmission device is sequentially connected with the auxiliary positioning devices, the laser sintering devices, the turn-over device, the auxiliary positioning devices and the laser sintering devices.

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

The conveying device comprises a conveying belt for conveying the solar cell;

The feeding device comprises a feeding gripper and a feeding level, wherein the feeding gripper is used for carrying the solar cell at the feeding level onto the conveying belt;

The laser sintering device is connected with the transmission device and comprises a laser;

the discharging device comprises a discharging gripper and a discharging position, wherein the discharging gripper is used for carrying the solar cell on the conveying belt to the discharging position;

the laser sintering device comprises a positioning assembly and a bearing table, wherein the bearing table and the transmission belt can move relatively, so that the bearing table can support the solar cell on the transmission belt, and the positioning assembly can adjust the position of the solar cell on the bearing table.

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

Through integrated locating component on the laser sintering device to realized the adjustment of solar wafer position on the laser sintering station, improved the uniformity of solar wafer position on the plummer, the counterpoint of the probe of being convenient for and the irradiation of laser have improved the yields of laser sintering processing, and, the laser sintering automation equipment integrated level of this kind of structure is higher, and equipment bulk volume is less.

According to some embodiments of the present utility model, the positioning assembly is disposed on the lower side of the carrying platform, and the positioning assembly includes a rotating member, at least two sliding members and at least two connecting rods, one end of each connecting rod is hinged with the rotating member, the other end is hinged with the sliding member, and each connecting rod is sequentially disposed along the circumferential direction of the rotating member, and when the rotating member rotates, each sliding member is driven to move linearly;

The sliding parts are further connected with second positioning parts, the second positioning parts extend upwards to be higher than the top surface of the bearing table, and each second positioning part can move along with the movement of the sliding parts and close to the bearing table, so that the second positioning parts can be abutted to the side edges of 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 first distance so that the bearing table supports the solar cell;

the top surface of plummer is provided with electrically conductive portion, laser sintering device still including set up in the probe subassembly of plummer top, drive assembly can drive plummer with the locating component upwards moves the second distance, until probe subassembly with solar wafer butt, so that probe subassembly with electrically conductive portion passes through the solar wafer electrical conduction.

According to some embodiments of the utility model, the laser sintering automation device comprises at least two conveying devices and at least two laser sintering devices, wherein each conveying device is correspondingly connected with one laser sintering device, the feeding device can convey the solar cell on any conveying belt, and the discharging device can convey the solar cell on any conveying belt to the discharging position.

According to some embodiments of the utility model, the laser sintering automation device further comprises a turn-over device, the laser sintering automation device comprises two laser sintering devices, and the transmission device is sequentially connected with the laser sintering device, the turn-over device and the laser sintering device.

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 automation apparatus (dual channel) according to an embodiment of the present utility model;

FIG. 2 is a top view (dual channel) of a laser sintering automation apparatus according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of an auxiliary positioning device according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a butt clamp assembly according to an embodiment of the present utility model;

FIG. 5 is an enlarged schematic view of area A of FIG. 4;

FIG. 6 is another angular schematic view of a butt clamp assembly according to an embodiment of the present utility model;

FIG. 7 is a schematic view of a laser sintering device according to an embodiment of the present utility model;

FIG. 8 is an exploded view of a laser sintering device according to an embodiment of the present utility model;

FIG. 9 is a schematic view of a positioning assembly according to an embodiment of the present utility model;

FIG. 10 is a schematic diagram illustrating an assembly of a positioning assembly and a conveyor belt according to an embodiment of the present utility model;

FIG. 11 is a schematic view of a laser sintering automation apparatus (dual-channel and dual-sided processing) according to an embodiment of the present utility model;

Fig. 12 is a top view of a laser sintering automation apparatus (dual-channel and dual-sided processing) according to an embodiment of the present 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 second positioning member 134; a soft portion 1341; a mounting platform 135; support column 136; a second motor 138; a drive assembly 140; a second driving member 141; a guide 142; a probe assembly 150;

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

An auxiliary positioning device 300; a butt clamp assembly 310; a first driver 320; a first motor 330; a drive wheel 340; driven wheel 350; a timing belt 360; a first positioning member 370; a connection portion 371; a first clamping plate 3711; a second clamping plate 3712; friction protrusion 3713; a sliding portion 372; a support rail 373; a transition portion 375; a roller 376; a visual detection component 390;

A turn-over device 400;

a feeding device 500;

A blanking device 600;

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 first aspect of the present application provides a laser sintering automation device, as shown in fig. 1 and fig. 2, where the device includes a transmission device 200, a feeding device 500, an auxiliary positioning device 300, a laser sintering device 100 and a discharging device 600, the transmission device 200 includes a transmission belt 210 for conveying solar cells 10, and as shown in fig. 3 and fig. 10, the transmission belt 210 adopts a vacuum adsorption structure, so that the movement accuracy of the solar cells 10 in the transmission process can be significantly improved. Specifically, the conveying belt 210 is used for supporting a plurality of adsorption holes 211 on the surface of the solar cell 10, and each adsorption hole 211 is sequentially arranged along the conveying direction and can be communicated with an external negative pressure source to form negative pressure, so that the solar cell 10 plays a role in adsorption and fixation in the conveying process, and stability and accuracy in the conveying process are improved.

As shown in fig. 1, the feeding device 500 includes a feeding gripper and a feeding level, and it should be explained that, after the solar cells 10 are centrally placed on the feeding level by a manual or mechanical manner, the feeding gripper can carry the solar cells 10 on the feeding level onto the conveyor belt 210. In the embodiment shown in fig. 1, the feeding gripper includes a vacuum chuck, and can be adsorbed on the upper surface of the solar cell 10, and then move to above the vacuum conveying belt 210, so as to implement the connection between the feeding gripper and the conveying belt 210.

Further, the feeding device 500 includes two feeding grippers arranged in parallel, and the two feeding grippers move synchronously. When applied to the dual-channel laser sintering automation device as shown in fig. 1, the first gripper is positioned on the conveyor belt 210 of the first channel, the second gripper is positioned on the conveyor belt 210 of the second channel, and then the two grippers move synchronously towards the conveyor belt 210 of the second channel, so that the first gripper moves to the conveyor belt 210 of the second channel to adsorb the solar cell, and the second gripper moves to the conveyor belt 210 of the second channel to perform feeding. After loading is completed, the two grippers move synchronously towards the conveyor belt 210 of the first channel, so that the first gripper performs loading, and the second gripper performs adsorption, and the cycle is repeated.

Correspondingly, the blanking device 600 includes a blanking gripper and a blanking level, where the blanking gripper can carry the solar cell 10 on the conveyor belt 210 to the blanking level, and then manually or mechanically transfer the solar cell 10 to the next process.

The auxiliary positioning device 300 and the laser sintering device 100 are both connected to the transmission device 200, and it should be understood that the connection is not limited to the connection between the auxiliary positioning device 300 and the laser sintering device 100 and the transmission device 200, and the connection should be understood as a broad sense of series connection, that is, as shown in fig. 2, the transmission device 200 connects the auxiliary positioning device 300 and the laser sintering device 100 in series to sequentially transfer the solar cell 10 to the auxiliary positioning device 300 and the laser sintering device 100 for positioning, sintering, and the like. For convenience of the following description, the transmission direction of the solar cell 10 is set to a first direction, and a second direction in a horizontal plane and perpendicular to the first direction. It should be noted that, along the first direction, the laser sintering device 100 needs to be disposed downstream of the auxiliary positioning device 300, so that the solar cell 10 is first conveyed to the auxiliary positioning device 300 for centering adjustment, and then conveyed to the laser sintering device 100 for laser sintering processing.

Specifically, as shown in fig. 3, to ensure the processing precision and the processing yield of the laser sintering device 100, the auxiliary positioning device 300 includes a butt clamp assembly 310 and a visual detection assembly 390, the butt clamp assembly 310 is used for adjusting the position of the solar cell 10 on the conveyor belt 210, the visual detection assembly 390 is used for obtaining the position information of the solar cell 10 on the conveyor belt 210, and, because the visual detection assembly 390 is in communication connection with the laser 120, the position information can be transmitted to the laser 120, so that the laser 120 can adjust the laser parameters according to the position information. For example, if there is a shift in the position of the solar cell 10 along the first direction, the vision detection component 390 transmits the shifted position information to the laser 120, and the laser 120 calculates the shift amount after comparing the actual position of the solar cell 10 with the preset position, and performs position compensation by adjusting the position of the laser 120, adjusting the focal length of the laser 120, and so on, so as to meet the processing requirement.

It should be noted that, the visual detection component 390 may be a CCD camera, etc., and the CCD camera is a conventional technical means for those skilled in the art to obtain the position information of the object to be detected, which is not described herein.

Based on the above, by providing the auxiliary positioning device 300 before the laser sintering device 100, the position adjustment and positioning of the solar cell 10 can be realized, so that the alignment of the probe and the adjustment of the irradiation area of the laser 120 in the subsequent laser sintering process can be facilitated, and the yield of the laser sintering process can be improved. In addition, since the auxiliary positioning device 300 of the application is independent of the laser sintering device 100, the solar cell 10 can be conveyed to the laser sintering device 100 for processing by the conveying device after being adjusted and positioned, the production takt is faster, and the production efficiency is higher.

In some embodiments, as shown in fig. 3 to 6, the butt clamp assembly 310 includes a first driving member 320 and two first positioning members 370, where the two first positioning members 370 are respectively located at two sides of the conveyor belt 210 and connected to the first driving member 320. The first driving member 320 can drive the two first positioning members 370 to move in opposite directions, so that the first positioning members 370 are abutted with the solar cell 10.

As shown in fig. 3, two first positioning members 370 are respectively disposed at two ends of the conveyor belt 210 along the second direction. In the conveying process, if the solar cell 10 is offset along the second direction in the conveying process, the solar cell 10 is abutted against one of the first positioning members 370 in the opposite moving process of the two first positioning members 370, so that the first positioning member 370 pushes the solar cell 10 to recover to the centering position of the conveyor belt 210, and the accuracy of the position of the solar cell 10 in the second direction is ensured.

The visual inspection component 390 is disposed on one side of the conveyor belt 210, and further, the visual inspection component 390 may be disposed on a different side of the conveyor belt 210 than the butt-clamp component 310, such as the butt-clamp component 310 is disposed below the conveyor belt 210 and the visual inspection device is disposed above the conveyor belt 210 in the embodiment shown in fig. 3. It will be appreciated that in other embodiments, the conveyor belt 210 conveys the solar cell 10 in an inverted state, for example, the conveyor belt 210 is provided with the suction holes 211 to suction and convey the solar cell 10 to the lower side of the conveyor belt 210, and the butt clamp assembly 310 may be disposed above the conveyor belt 210, and the vision detecting assembly 390 is disposed below the conveyor belt 210.

Alternatively, the butt clamp assembly 310 and the vision inspection assembly 390 are disposed in this order along the transport direction (i.e., the first direction) of the solar cell 10. That is, the solar cell 10 is moved to the corresponding position of the visual detection component 390 after being adjusted by the position adjustment of the clamping component 310, so as to collect the position information. It will be appreciated that in the present application, it is desirable to ensure that the position adjustment action of the butt clamp assembly 310 occurs prior to the acquisition action of the visual inspection assembly 390.

It will be appreciated that since the position of the solar cell 10 in the second direction has been ensured by the alignment fixture assembly 310, the vision inspection assembly 390 may only collect positional information of the solar cell 10 in the first direction to assist the laser 120 in adjusting the processing area in the first direction. Still alternatively, the vision inspection assembly 390 may collect positional information of the solar cell 10 in the first and second directions to assist the laser 120 in adjusting the processing area in the first and second directions.

Further, as shown in fig. 3 to 6, the first driving member 320 includes a first motor 330, a driving wheel 340, a driven wheel 350 and a synchronous belt 360, the synchronous belt 360 is wound around the driving wheel 340 and the driven wheel 350, the first motor 330 is connected with the driving wheel 340 and is capable of driving the driving wheel 340 to rotate, so that the driving wheel 340 drives the driven wheel 350 to rotate through the circumferential rotation of the synchronous belt 360. The timing belt 360 includes two parallel straight line segments, and the two first positioning members 370 are respectively connected with the two straight line segments in a one-to-one correspondence manner. It will be appreciated that when the timing belt 360 rotates in its circumferential direction, the moving directions of the two straight line segments are opposite, so that the moving directions of the two first positioning members 370 are opposite, that is, when the first motor 330 is driven, the two first positioning members 370 move toward each other to come closer together, or move away from each other to come apart. Based on the synchronous wheel structure, synchronous driving of the two first positioning members 370 is realized to ensure centering accuracy.

Further, in order to improve the connection stability between the first positioning member 370 and the timing belt 360, a plurality of friction protrusions 3713 are disposed on the side surface of the first clamping plate 3711 abutting against the straight line segment, so as to form an uneven structure as shown in fig. 5, so as to increase the friction force between the timing belt 360 and the connection portion 371. Or a plurality of friction protrusions 3713 are provided on the side of the second clamping plate 3712 abutting against the straight line segment to increase friction. Further alternatively, structures for increasing friction force are provided on both the first clamping plate 3711 and the second clamping plate 3712, so that the connection between the timing belt 360 and the first positioning member 370 is reliable.

In some embodiments, the first positioning member 370 further includes a sliding portion 372, and the butt clamp assembly 310 includes a support rail 373, as shown in fig. 6, where the support rail 373 is disposed along the second direction (i.e., the moving direction of the first positioning member 370), the sliding portion 372 is slidably connected to the support rail 373, and rotation of the timing belt 360 drives the first positioning member 370 to slide along the support rail 373. It will be appreciated that the support rail 373 can serve as an auxiliary guide for the movement of the first positioning member 370 to reduce the load applied to the timing belt 360 by the first positioning member 370.

In some embodiments, as shown in fig. 6, the first positioning member 370 includes a transferring portion 375, the transferring portion 375 extends along a first direction, a plurality of rollers 376 are disposed on the transferring portion 375 and used for abutting against the solar cell 10, and the rollers 376 are arranged on the transferring portion 375 along a conveying direction of the solar cell 10. And, the rotation axis of the roller 376 is perpendicular to the surface of the solar cell 10. That is, when the roller 376 abuts against a side edge of the solar cell 10, the solar cell 10 is in rolling connection with the roller 376, and when the first positioning member 370 abuts against the solar cell 10 to move in the second direction, the conveyor belt 210 can also drive the solar cell 10 to move in the first direction, the roller 376 can play a role in positioning and guiding, friction with the solar cell 10 is small, and movement of the solar cell 10 is not affected.

Further, the outer circumference of the roller 376 is coated with a soft material such as rubber or plastic, or the roller 376 is made of a soft material such as rubber or plastic, so that the solar cell 10 is not scratched when the roller 376 is abutted against the solar cell 10.

As shown in fig. 7 to 10, the laser sintering device 100 includes a stage 110 and a laser 120, and either one of the stage 110 or the conveyor belt 210 is provided with a moving mechanism to enable relative movement in the vertical direction between the stage 110 and the conveyor belt 210. For example, in the embodiment shown in fig. 10, the top surface of the carrier 110 is located under the conveyor belt 210 in the initial state, and when the conveyor belt 210 conveys the solar cell 10 to the laser sintering station, the carrier 110 is driven to lift by the driving component 140 so as to lift up the solar cell 10, and at this time, the transfer of the solar cell 10 from the conveyor belt 210 to the carrier 110 is completed. After the laser sintering process of the solar cell 10 is completed on the carrying table 110, the carrying table 110 is lowered below the conveyor belt 210, so that the solar cell 10 is supported by the conveyor belt 210, and can continue to move to the next station along with the conveyor belt 210.

It should be noted that, as shown in fig. 8, the carrying platform 110 is provided with an avoidance groove 111, and the avoidance groove 111 is used for avoiding the transmission belt 210 of the transmission device 200, and in the embodiment shown in fig. 8, since the transmission device 200 includes two parallel transmission belts 210 to jointly support the solar cell 10, the carrying platform 110 is provided with two avoidance grooves 111 penetrating 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.

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.

Since the solar cell 10 needs to be electrically conductive in the laser sintering process, the top surface of the carrier 110 is provided with the conductive portion 112, and the conductive portion 112 may be a contact electrode in a small area, or the entire bottom support at the top of the carrier 110 as shown in fig. 8 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 are abutted against the top surface of the solar cell 10 during laser sintering, so that the probes are electrically connected with the grid lines 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.

Based on the above, as shown in fig. 7 and 8, the carrying platform 110 is connected with a driving assembly 140, where the driving assembly 140 includes a second driving member 141 and a guiding member 142, and the second driving member 141 may be an electric cylinder, an air cylinder, or the like, and the driving assembly 140 can drive the carrying platform 110 to move up or down. The guide 142 cooperates with the second driving member 141 to guide the movement of the stage 110. It should be noted that, the driving assembly 140 can drive the carrying table 110 to move upwards by a first distance and a second distance, when the solar cell 10 is conveyed below the laser 120 by the conveyor belt 210, 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 until exceeding the top surface of the conveyor belt 210, so that the carrying table 110 plays a role of supporting the solar cell 10. The driving assembly 140 can also drive the carrier 110 to move upward a second distance after moving upward a first distance, so that the probe assembly 150 abuts against the solar cell 10.

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 the bearing of the bearing table 110 on the solar cell 10 and the abutting connection of the probe assembly 150, so that the structure is compact and the cost is lower.

In some embodiments, the laser sintering automation device employs a multi-channel machined structure. Specifically, the laser sintering automation device includes at least two transmission devices 200, at least two auxiliary positioning devices 300, at least two laser sintering devices 100, each transmission device 200 is connected with one auxiliary positioning device 300 and one laser sintering device 100 respectively, the feeding device 500 can carry the solar cell 10 from the feeding position to any one of the transmission belts 210, and the discharging device 600 can carry the solar cell 10 on any one of the transmission belts 210 to the discharging position. In the embodiment shown in fig. 1 and 2, the laser sintering automation device is two-channel, and the number of the transmission device 200, the auxiliary positioning device 300 and the laser sintering device 100 is two except for the common use of the feeding device 500 and the discharging device 600, so that the production efficiency of the solar cell 10 can be doubled.

In some embodiments, the laser sintering automation device may also enable double sided sintering of the solar cell 10. Specifically, the laser sintering automation device includes a turn-over device 400, which can turn over the solar cell 10, so that the processed surface is turned down, and the unprocessed surface is turned up for subsequent processing. The turning device 400 may be a turret as shown in fig. 11, a gripper with a degree of freedom of rotation, or the like.

As shown in fig. 12, the auxiliary positioning device 300 and the laser sintering device 100 are provided in front of and behind the turn-over device 400. Therefore, the single-channel laser sintering automation equipment comprises a feeding device 500, a transmission device 200, two auxiliary positioning devices 300, two laser sintering devices 100 and a discharging device 600, wherein the transmission device 200 is sequentially connected with the auxiliary positioning devices 300, the laser sintering devices 100, the turning device 400, the auxiliary positioning devices 300 and the laser sintering devices 100, and the solar cell 10 can be sintered on two sides after passing through the assembly line, so that the equipment integration level is high and the efficiency is high.

In combination with the above embodiment, the turn-over device 400 may be added in the dual-channel laser sintering automation device, so as to implement dual-channel and dual-sided processing, and further improve the processing efficiency. As shown in fig. 12, the laser sintering automation equipment comprises a feeding device 500, two transmission devices 200, four auxiliary positioning devices 300, four laser sintering devices 100 and a discharging device 600, and has higher integration level.

Compared to the laser sintering automation device according to the first aspect of the present application, the auxiliary positioning device 300 is used to adjust and position the solar cell 10, and the positioning assembly 130 of the laser sintering device 100 is used to adjust and position the solar cell 10 in the laser sintering automation device according to the second aspect of the present application, so as to improve the yield of laser sintering. Specifically, the laser sintering automation device includes a transmission device 200, a feeding device 500, and a discharging device 600, and the structures of these three devices are identical to those of the embodiment of the first aspect, which is not described herein again.

The laser sintering device 100 includes a positioning assembly 130 and a carrying table 110, the carrying table 110 and the conveying belt 210 can relatively move, and the carrying table 110 and the conveying belt 210 can relatively move in a vertical direction, so that the carrying table 110 supports the solar cell 10 on the conveying belt 210, and the positioning assembly 130 can adjust the position of the solar cell 10 on the carrying table 110.

Specifically, 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. 7 and 8, 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, and it is understood that the rotating member 131 is connected with a second motor 138 as shown in fig. 9 and 10, and the second motor 138 is disposed on the other side of the mounting platform 135 and penetrates through the mounting platform 135 to be connected with the rotating member 131, 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. 9, 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 slider 132 to linearly move. The sliding member 132 is connected to a second positioning member 134, where one end of the second positioning member 134 is connected to the sliding member 132, and the other end extends upward to be higher than the top surface of the carrying platform 110. It is understood that the height of the free end of the second positioning member 134 corresponds to the height of the solar cell 10 placed on the carrier 110. When the rotating member 131 rotates forward, the connecting rod 133 drives the sliding member 132 to move close to the rotating member 131 and perform linear motion, so that the second positioning member 134 on the sliding member 132 moves synchronously with the movement of the sliding member 132, and gradually moves close to the carrying table 110, so that the second 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 second positioning member 134 on the sliding member 132 moves away from the carrying table 110, thereby eliminating the limitation on the solar cell 10, so as to avoid the second positioning member 134 from affecting the subsequent laser sintering process.

In the embodiment shown in fig. 10, because of the high requirement for positioning accuracy, for this purpose, second 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 second 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 second positioning members 134 can move in opposite directions 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 positioning assembly 130 of the second aspect of the embodiment of the present application converts the rotation of the rotating member 131 into the linear movement of the sliding member 132 by the link 133, and the plurality of links 133 are provided along the circumferential direction of the rotating member 131, so that the plurality of sliding members 132 can be driven to move in the direction approaching the rotating member 131 or in the direction separating from the rotating member 131 when the rotating member 131 is rotated forward or backward. The second 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, the yield of laser sintering processing is improved, and the positioning assembly 130 is integrated on the laser sintering device, so that the laser sintering automation equipment with the structure has higher integration level and smaller whole volume.

The laser sintering device 100 further includes a driving assembly 140, specifically, as shown in fig. 7 and 8, the driving assembly 140 includes a second driving member 141 and a guiding member 142, the second driving member 141 may be an electric cylinder, an air cylinder, or the like, and the supporting table 110 and the positioning assembly 130 are connected into an integral structure, and the driving assembly 140 can drive the supporting table 110 and the positioning assembly 130 to move up or down simultaneously. The guide 142 cooperates with the second driver 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. 10, the second 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 second 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. 8 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, the probe assembly 150 moves close to the carrier 110 until abutting against the solar cell 10 on the carrier 110 to achieve conduction, and the probe assembly 150 moves away from the carrier 110 until separating from the solar cell 10 on the carrier 110 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. 7 and 8, 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. 9, 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 second positioning members 134 on the sliding members 132 are disposed at two ends of the carrying platform 110 along the first direction. The moving direction of the other two sliding members 132 is parallel to the second direction, and the second 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 second 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 second positioning member 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 second positioning members 134. In the embodiment shown in fig. 9, two second positioning members 134 are connected to one sliding member 132, and the two second positioning members 134 are respectively located at two sides of the sliding member 132. The second 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. 9, the soft portion 1341 is in a round shape, and the soft portion 1341 is made of soft material such as rubber, so that it is not damaged when abutting against the edge of the solar cell 10.

In some embodiments, as with the first aspect embodiments, the second aspect embodiments may also take the form of multiple channels to increase the efficiency of the laser sintering automation apparatus. Specifically, the laser sintering automation device includes at least two conveying devices 200 and at least two laser sintering devices 100, each conveying device 200 is correspondingly connected with one laser sintering device 100, the feeding device 500 can convey the solar cell 10 from the feeding position to any conveying belt 210, and the discharging device 600 can convey the solar cell 10 on any conveying belt 210 to the discharging position. Referring to the embodiment shown in fig. 1 and 2, the laser sintering automation equipment is double-channel, and the number of the transmission device 200 and the laser sintering device 100 is two except for the common use of the feeding device 500 and the discharging device 600, so that the production efficiency of the solar cell 10 can be doubled.

In some embodiments, the laser sintering automation device may also enable double sided sintering of the solar cell 10. Specifically, the laser sintering automation device includes a turnover device 400, and the turnover device 400 can realize the turnover of the solar cell 10, so that the processed surface is turned downwards, and the unprocessed surface is turned upwards for subsequent processing. The turning device 400 may be a turret as shown in fig. 11, a gripper with a degree of freedom of rotation, or the like.

A laser sintering device 100 is provided in front of and behind the turn-over device 400. Therefore, the single-channel laser sintering automation equipment comprises a feeding device 500, a transmission device 200, two laser sintering devices 100 and a discharging device 600, wherein the transmission device 200 is sequentially connected with the laser sintering device 100, the turn-over device 400 and the laser sintering device 100, and after the solar cell 10 passes through the assembly line, double-sided sintering can be completed, the equipment integration level is higher, and the efficiency is higher.

In combination with the above embodiment, the turn-over device 400 may be added in the dual-channel laser sintering automation device, so as to implement dual-channel and dual-sided processing, and further improve the processing efficiency. Referring to fig. 12, the laser sintering automation apparatus includes one loading device 500, two transfer devices 200, four laser sintering devices 100, and one unloading device 600, and has a higher integration level.

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 (11)

1. Laser sintering automation equipment, characterized by includes:

a transport device (200), the transport device (200) comprising a transport belt (210) for transporting the solar cell (10);

The feeding device (500), wherein the feeding device (500) comprises a feeding grip and a feeding level, and the feeding grip is used for carrying the solar cell (10) at the feeding level onto the conveying belt (210);

-an auxiliary positioning device (300), the auxiliary positioning device (300) being connected to the transmission device (200);

-a laser sintering device (100), the laser sintering device (100) being connected to the transport device (200) and, in the transport direction of the solar cell (10), the laser sintering device (100) being located downstream of the auxiliary positioning device (300), the laser sintering device (100) comprising a laser (120);

-a blanking device (600), the blanking device (600) comprising a blanking grip and a blanking level, the blanking grip being used for handling the solar cells (10) on the conveyor belt (210) to the blanking level;

The auxiliary positioning device (300) comprises a butt clamp assembly (310) and a visual detection assembly (390), wherein the butt clamp assembly (310) is used for adjusting the position of the solar cell (10) on the conveyor belt (210), and the visual detection assembly (390) is used for acquiring the position information of the solar cell (10) on the conveyor belt (210) and is in communication connection with the laser (120).

2. The laser sintering automation device of claim 1, wherein the butt clamp assembly (310) comprises a first driving member (320) and two first positioning members (370), the two first positioning members (370) are respectively located at two sides of the conveyor belt (210) and connected with the first driving member (320), and the first driving member (320) can drive the two first positioning members (370) to move towards each other so that the first positioning members (370) are abutted against the solar cell (10).

3. The laser sintering automation device of claim 1, the laser sintering device (100) comprising a carrier (110) and a laser (120), the carrier (110) being movable relative to the conveyor belt (210) such that the carrier (110) is capable of supporting the solar cells (10) on the conveyor belt (210), the laser (120) being disposed above the carrier (110).

4. A laser sintering automation device according to claim 3, characterized in that the laser sintering device (100) further comprises a driving assembly (140), the driving assembly (140) being connected to the carrier table (110), the driving assembly (140) being capable of driving the carrier table (110) to move upwards by a first distance so that the carrier table (110) supports the solar cell (10);

The top surface of plummer (110) is provided with electrically conductive portion (112), laser sintering device (100) still including set up in probe subassembly (150) of plummer (110) top, drive assembly (140) can drive plummer (110) upwards move the second distance until probe subassembly (150) with solar wafer (10) butt, so that probe subassembly (150) with electrically conductive portion (112) are through solar wafer (10) electricity switches on.

5. The laser sintering automation device according to claim 1, characterized in that the laser sintering automation device comprises at least two conveying devices (200), at least two auxiliary positioning devices (300) and at least two laser sintering devices (100), wherein each conveying device (200) is respectively connected with one auxiliary positioning device (300) and one laser sintering device (100), the feeding device (500) can convey the solar cell (10) onto any conveying belt (210), and the discharging device (600) can convey the solar cell (10) on any conveying belt (210) to the discharging position.

6. The laser sintering automation device according to claim 1, further comprising a turn-over means (400), wherein the laser sintering automation device comprises two auxiliary positioning means (300), two laser sintering means (100), and wherein the transmission means (200) is connected to the auxiliary positioning means (300), the laser sintering means (100), the turn-over means (400), the auxiliary positioning means (300) and the laser sintering means (100) in this order.

7. Laser sintering automation equipment, characterized by includes:

a transport device (200), the transport device (200) comprising a transport belt (210) for transporting the solar cell (10);

The feeding device (500), wherein the feeding device (500) comprises a feeding grip and a feeding level, and the feeding grip is used for carrying the solar cell (10) at the feeding level onto the conveying belt (210);

-a laser sintering device (100), the laser sintering device (100) being connected to the transmission device (200), the laser sintering device (100) comprising a laser (120);

-a blanking device (600), the blanking device (600) comprising a blanking grip and a blanking level, the blanking grip being used for handling the solar cells (10) on the conveyor belt (210) to the blanking level;

The laser sintering device (100) comprises a positioning assembly (130) and a bearing table (110), wherein the bearing table (110) and the conveying belt (210) can move relatively, so that the bearing table (110) can support the solar cell (10) on the conveying belt (210), and the positioning assembly (130) can adjust the position of the solar cell (10) on the bearing table (110).

8. The laser sintering automation device according to claim 7, wherein the positioning assembly (130) is disposed at the lower side of the bearing table (110), the positioning assembly (130) includes a rotating member (131), at least two sliding members (132) and at least two connecting rods (133), one end of each connecting rod (133) is hinged to the rotating member (131), the other end is hinged to the sliding member (132), the connecting rods (133) are sequentially disposed along the circumferential direction of the rotating member (131), and when the rotating member (131) rotates, each sliding member (132) is driven to linearly move;

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

9. The laser sintering automation device of claim 7, the laser sintering device (100) further comprising a drive assembly (140), the drive assembly (140) being coupled to the carrier (110) and the positioning assembly (130), the drive assembly (140) being capable of driving the carrier (110) and the positioning assembly (130) to move upwardly a first distance to cause the carrier (110) to hold the solar cell (10);

The top surface of plummer (110) is provided with electrically conductive portion (112), laser sintering device (100) still including set up in probe subassembly (150) of plummer (110) top, drive assembly (140) can drive plummer (110) with locating component (130) upwards remove the second distance, until probe subassembly (150) with solar wafer (10) butt, so that probe subassembly (150) with electrically conductive portion (112) are through solar wafer (10) electricity switches on.

10. The laser sintering automation device according to claim 7, characterized in that the laser sintering automation device comprises at least two conveying devices (200) and at least two laser sintering devices (100), wherein one laser sintering device (100) is correspondingly connected to each conveying device (200), the feeding device (500) can convey the solar cell (10) onto any conveying belt (210), and the discharging device (600) can convey the solar cell (10) on any conveying belt (210) to the discharging position.

11. The laser sintering automation device according to claim 7, further comprising a turn-over means (400), wherein the laser sintering automation device comprises two laser sintering means (100), and wherein the transmission means (200) is connected to the laser sintering means (100), the turn-over means (400) and the laser sintering means (100) in sequence.