Production device of photovoltaic cell

Abstract

The utility model discloses a production device of a photovoltaic battery piece, which comprises a first detection device, a second detection device, a third detection device, a fourth detection device, a fifth detection device, a sixth detection device and a fifth detection device in sequence along the transmission direction from back to front, the position adjusting device is used for adjusting the battery piece to extend along a preset direction; the cutting device is used for cutting the battery piece along the preset direction and obtaining two half battery pieces; the second detection device is used for detecting whether the half battery piece is damaged or not; the sorting device is in communication connection with the second detection device and is used for sorting the damaged half battery pieces to a waste bin, the sorting device can also sort the undamaged half battery pieces to a temporary storage bin so as to obtain half-piece photovoltaic battery pieces, and after being cut, the half-piece photovoltaic battery pieces can be stored in the waste bin. The battery piece which is locally damaged is divided into two half battery pieces, only the damaged half battery piece needs to be discarded, the other half battery piece can still be utilized, the whole piece is prevented from being directly discarded, and therefore waste is avoided.

Description

Technical Field

[0001] The utility model relates to a production device for photovoltaic cells. Background Art

[0002] During the production process of battery cells, affected by various factors, some parts of the battery cells may have some quality defects or damage, while the battery cells as a whole do not have major quality problems and may even have high efficiency. For such battery cells, the existing processing method is usually to pick them out and discard them as a whole, which causes great waste. Even if they are not discarded, such battery cells can only be used as low-grade products, and the efficiency of the battery cells is not fully utilized. Utility Model Content

[0003] The utility model aims to provide a new production device for photovoltaic cells.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a production device for photovoltaic cells, along the transmission direction from back to front, the production device sequentially comprises:

[0005] A first detection device, wherein the first detection device is configured to detect an extension direction of the battery sheet;

[0006] A position adjustment device, wherein the position adjustment device is configured to adjust the battery sheet to extend along a preset direction;

[0007] A cutting device, wherein the cutting device is configured to cut the battery cell along the preset direction to obtain two half-cell battery cells;

[0008] A second detection device, the second detection device is configured to detect whether the half-cell battery sheet is damaged;

[0009] A sorting device is communicatively connected to the second detection device, and the sorting device is configured to sort the damaged half-cells to a waste bin, and sort the undamaged half-cells to a temporary storage bin, so as to obtain half-cell photovoltaic cells.

[0010] Preferably, the production device further comprises a transmission device, and the transmission device comprises:

[0011] A first transport mechanism includes a first transport member that transports the battery cell along a first transport path, the first transport member transports the battery cell through a first inspection station, and the battery cell is inspected by the first inspection device at the first inspection station;

[0012] A second transport mechanism, comprising a second transport member that transports the battery sheet along a second transport path, wherein the second transport member is transported through the cutting device along the second transport path;

[0013] A first transport mechanism, used for transferring the battery sheet from the first transport member to the second transport mechanism;

[0014] A third transmission mechanism, comprising a third transmission member for transmitting the half-cell battery sheet along a third transmission path, wherein the third transmission member sequentially passes through the second detection device and the sorting device along the third transmission path;

[0015] The second transport mechanism is used to transfer the half-cell battery from the second transport member to the third transport member.

[0016] In some embodiments, the second transmission mechanism further includes a carrying platform for carrying the battery sheet, and the position adjustment device is connected to the carrying platform and is used to drive the carrying platform to adjust its position in the horizontal direction.

[0017] The transmission device further includes a third transport mechanism for transferring the battery sheet from the carrier platform to the second transmission member.

[0018] Preferably, the first transmission path, the second transmission path and the third transmission path all extend in the front-to-back direction, and the first transmission member, the second transmission member and the third transmission member are arranged in sequence from back to front, and the first transmission member and the third transmission member are located on the same side of the second transmission member.

[0019] In some embodiments, the third transmission member includes a rotatably arranged transmission belt, on which a plurality of perforations are arranged at intervals, and the perforations penetrate the transmission belt along the thickness direction. The third transmission mechanism also includes a drying mechanism arranged below the transmission belt.

[0020] Preferably, the cutting device comprises a laser cutting work head and a control component for controlling the laser cutting work head to emit a laser beam. The laser cutting work head is suspended above the second transmission member and can emit a laser beam extending in a vertical direction.

[0021] Preferably, the waste bin and the temporary storage bin are arranged on different sides of the third transmission member.

[0022] In some embodiments, the battery cell is square, and the cutting device is configured to cut along the center line of the battery cell to obtain two half-cell battery cells of the same size.

[0023] Preferably, the surface of the battery cell has main grid lines arranged parallel to each other, and the first detection device is configured to detect the extension direction of the main grid lines and determine the extension direction of the battery cell according to the extension direction of the main grid lines.

[0024] Furthermore, when the battery cell and the cutting device cooperate with each other to perform cutting, the preset direction and the extending direction of the main grid line are parallel to each other.

[0025] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art: the production device of the photovoltaic cell of the utility model cuts the whole cell into two half-cells by setting a cutting device. After the cutting is completed, the production device will check the damage of the half-cell. In this way, when the cell is partially damaged, there is no need to discard the whole cell, only the damaged half cell needs to be discarded, and the other intact half cell can still be used, avoiding waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Attached Figure 1 It is a three-dimensional structural schematic diagram of a production device of a specific embodiment of the utility model;

[0027] Attached Figure 2 For attachment Figure 1 A top view of

[0028] Attached Figure 3 Schematic diagram of the three-dimensional structure of the carrier platform and the position adjustment device in this embodiment;

[0029] Attached Figure 4 It is a three-dimensional schematic diagram of the structure of the second transmission member and the cutting device in this embodiment;

[0030] Attached Figure 5 is a schematic diagram of the three-dimensional structure of the second transport mechanism in this embodiment;

[0031] Attached Figure 6 Schematic diagram of the three-dimensional structure of the transmission belt in this embodiment;

[0032] Among them: 11, first detection device; 110, first detection station; 12, second detection device; 120, second detection station; 2, position adjustment device; 3, cutting device; 30, cutting station; 31, laser cutting work head; 4, sorting device; 41, waste bin; 42, temporary storage bin; 43, sorting work head; 5, first transmission mechanism; 51, first transmission member; 52, loading mechanism; 521, loading bin; 522, loading work head; 6, second transmission mechanism; 61, second transmission member; 611, cutting table; 62, carrying table; 71, first conveying mechanism; 72, second conveying mechanism; 721, second conveying work head; 73, third conveying mechanism; 8, third transmission mechanism; 81, third transmission member; 811, conveyor belt; 811a, first conveyor belt; 811b, second conveyor belt; 812, perforation; 9, visual inspection mechanism. DETAILED DESCRIPTION

[0033] The technical solution of the utility model is described in detail below in conjunction with the accompanying drawings and specific embodiments, so that the advantages and features of the utility model can be more easily understood by those skilled in the art. Obviously, the embodiments described in this application are only part of the embodiments of the application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application.

[0034] See also Figure 1 , Figure 2 The production device of a photovoltaic cell shown in the figure includes, in the transmission direction from back to front, a first detection device 11 for detecting the extension direction of the cell, a position adjustment device 2 for adjusting the cell to extend in a preset direction, a cutting device 3 for cutting the cell in a preset direction to obtain two half-cells, a second detection device 12 for detecting whether the half-cell is damaged, and a sorting device 4 that is connected to the second detection device 12 and can sort the damaged half-cell to a waste bin 41, and the sorting device 4 can also sort the undamaged half-cell to a temporary storage bin 42, so as to obtain a half-cell photovoltaic cell. For partially damaged cells, after being cut by the cutting device 3, only the damaged half-cell needs to be discarded, and the other half-cell can still be used normally, avoiding waste.

[0035] The production device also includes a transmission device, which includes a first transmission mechanism 5, a second transmission mechanism 6 and a third transmission mechanism 8, wherein the first transmission mechanism 5 includes a first transmission member 51 for transmitting the battery cell along the first transmission path, the first transmission member 51 transmits the battery cell through the first detection station 110, and the battery cell is detected by the first detection device 11 at the first detection station 110. The second transmission mechanism 6 includes a second transmission member 61 for transmitting the battery cell along the second transmission path, the second transmission member 61 transmits the battery cell along the second transmission path through the cutting station 30, and the battery cell is cut by the cutting device 3 at the cutting station 30. The third transmission mechanism 8 includes a third transmission member 81 for transmitting a half-cell battery cell along the third transmission path, the third transmission member 81 passes through the second detection station 120 and the sorting device 4 in sequence along the third transmission path, the battery cell is detected by the second detection device 12 at the second detection station 120, and when it is detected that a half-cell battery cell is damaged, the sorting device 4 will sort out the damaged half-cell battery cell. The transmission device further includes a first transport mechanism 71 for transferring the battery cell from the first transmission member 51 to the second transmission mechanism 6 , and a second transport mechanism 72 for transferring a half-cell battery cell from the second transmission member 61 to the third transmission member 81 .

[0036] See also Figure 1 , Figure 2 As shown, in this embodiment, the first transmission path, the second transmission path and the third transmission path all extend in the front-to-back direction, and the first transmission member 51, the second transmission member 61 and the third transmission member 81 are arranged in sequence from back to front, and the first transmission member 51 and the third transmission member 81 are located on the same side of the second transmission member 61.

[0037] In this embodiment, a loading mechanism 52 for loading the battery cells is provided at the beginning of the first transmission path, and the loading mechanism 52 includes a loading bin 521 storing the battery cells and a loading head 522 capable of reciprocating linear motion in the left and right directions. The loading head 522 can be switched between the loading bin 521 and the first transmission member 51 when reciprocating in the left and right directions, and can transport the battery cells stored in the loading bin 521 to the first transmission member 51. Preferably, the loading mechanism 52 includes two or more groups arranged at intervals in the front-to-back direction to improve the loading efficiency, and facilitate the simultaneous processing of multiple stations during subsequent processing, so as to improve the processing efficiency.

[0038] See also Figure 1 , Figure 2As shown, in this embodiment, the feeding mechanism 52 includes two groups arranged at intervals along the front-to-back direction, and each group of the feeding mechanism 52 includes two feeding bins 521. In the left-right direction, the two feeding bins 521 are arranged on different sides of the first transmission member 51. The feeding bin 521 is provided with a lifting mechanism, which is used to lift the battery cells in the feeding bin 521 upwards, so that the feeding work head 522 can take the materials from the feeding bin 521. When performing the feeding operation, the two feeding bins 521 of a group of feeding mechanisms 52 alternately lift the battery cells upwards, and the feeding work head 522 alternately takes the materials from the two feeding bins 521, thereby improving the feeding efficiency.

[0039] In this embodiment, a deflection correction component is provided on the first transmission path, and the deflection correction component is arranged between the feeding mechanism 52 and the first detection device 11. The deflection correction component is used to correct the deflection of the battery cell, so that the battery cell can be stably transmitted along the first transmission path, and it is also convenient for the first detection device 11 to detect the battery cell.

[0040] The surface of the cell has busbars arranged parallel to each other, and the first detection device 11 is configured to detect the extension direction of the busbars and determine the extension direction of the cell according to the extension direction of the busbars. Specifically, during the transmission of the cell, the surface of the cell with the busbars faces upward, and the first detection device 11 is located above the first transmission member 51 and detects the cell passing from below.

[0041] In this embodiment, two groups of the first conveying mechanism 71 are provided, and the two groups of the first conveying mechanism 71 can transfer two battery cells to the second conveying mechanism 6 at the same time. In some embodiments, the first conveying mechanism 71 can also make preliminary adjustments to the extension direction of the battery cell. Specifically, when the first detection device 11 detects that the battery cell extends in a preset direction, the first conveying mechanism 71 directly transfers the battery cell from the first conveying member 51 to the second conveying mechanism 6, and does not change the state of the battery cell during the conveying process. When the first detection device 11 detects that the battery cell does not extend in the preset direction, the first conveying mechanism 71 can adjust the extension direction of the battery cell by driving the working head to rotate during the conveying process of the battery cell.

[0042] In this embodiment, the second transmission mechanism 6 is further provided with a carrying platform 62 for carrying the battery sheet, see Figure 3 As shown, there are two carriers 62 spaced apart in the front-to-back direction. The carrier 62 is arranged behind the second transmission member 61. After the battery cell is inspected by the first inspection device 11, the first transport mechanism 71 transfers it from the first transmission member 51 to the carrier 62. Figure 3As shown, the position adjustment device 2 is connected to the carrier 62 and is used to drive the carrier 62 to adjust its position in the horizontal direction, so that the battery cell on the carrier 62 extends along a preset direction. In some embodiments, after the initial adjustment by the first transport mechanism 71, there is still a deviation between the extension direction of the battery cell on the carrier 62 and the preset direction. In order to ensure the accurate execution of the subsequent cutting operation, the battery cell needs to be accurately adjusted by the position adjustment device 2.

[0043] In this embodiment, the position adjustment device 2 includes a displacement adjustment component for driving the carrier 62 to translate in the horizontal direction, and an angle adjustment component for driving the carrier 62 to rotate in the horizontal plane for adjusting the angle of the carrier 62. Figure 1 As shown, a visual inspection mechanism 9 is also provided above the carrier 62, and the visual inspection mechanism 9 can obtain the actual position of the battery cell on the carrier 62, and the visual inspection mechanism 9 is connected to the position adjustment device 2 by signal to assist the position adjustment device in position adjustment.

[0044] The transmission mechanism further includes a third transport mechanism 73, and the battery cells after position adjustment are transferred from the carrier 62 to the second transmission member 61 through the third transport mechanism 73. In this embodiment, the third transport mechanism 73 can simultaneously transfer the two battery cells whose horizontal positions have been adjusted by the position adjustment device 2 to the second transmission member 61, and the cutting device 3 simultaneously cuts the two battery cells on the second transmission member 61.

[0045] In some embodiments, the carrier 62 is directly disposed on the second transmission member 61, and the transmission device does not need to be provided with a third transport mechanism 73. When the production device is working, the first transport mechanism 71 directly transfers the battery cell from the first transmission member 51 to the second transmission member 61, specifically to the carrier 62 of the second transmission member 61. After the horizontal position of the battery cell is adjusted by the position adjustment device 2, the second transmission member 61 transports the battery cell along the second transmission path and passes through the second cutting station 30.

[0046] In this embodiment, when the cell is located on the second transmission member 61 and cooperates with the cutting device for cutting, the preset direction is parallel to the extension direction of the main grid line, ensuring that the half-cell cell obtained after cutting can be used normally. At the same time, in this embodiment, the preset direction is parallel to the extension direction of the second transmission path, that is, the cutting direction of the cutting device 3 is parallel to the transmission direction of the cell, and the cell can be cut during the transmission process, making the cutting operation more convenient. For details, see Figure 4As shown, the cutting device 3 includes a laser cutting work head 31 and a control component for controlling the laser cutting work head 31 to emit a laser beam. The laser cutting work head 31 is suspended above the second transmission member 61 and can emit a laser beam extending in the vertical direction. The second transmission member 61 includes a cutting table 611 for carrying battery cells. The cutting table 612 can carry two battery cells at the same time and transmit them along the second transmission path. When performing the cutting operation, the cutting table 611 carrying the battery cell only needs to pass under the laser cutting work head 31 along the second transmission path, and the laser beam emitted by the laser cutting work head 31 can cut the battery cell on the cutting table 611 into two halves. In this embodiment, the battery cell is square, and the cutting device 3 is configured to cut along the center line of the battery cell and obtain two half-cell battery cells of the same size.

[0047] See also Figure 4 As shown, two groups of cutting tables 612 are provided, and the two groups of cutting tables 612 are transferred alternately to improve cutting efficiency. Specifically, the two groups of cutting tables 612 can be transferred in the front-to-back direction, and the two groups of cutting tables 612 can be set to be lifted and lowered in the up-down direction. The two groups of cutting tables 612 are respectively the first cutting table and the second cutting table. After the battery cell on the first cutting table completes the cutting operation and is transferred away, the first cutting table moves downward and returns backward along the second transfer path. During this process, the second cutting table transfers the battery cell above the first cutting table. When the first cutting table moves to below the unloading position of the third conveying mechanism 73, the first cutting table moves upward to return to the initial height, receives the battery cell and then transfers it forward.

[0048] In this embodiment, the second transport mechanism 72 is provided with a second transport head 721 that can reciprocate in the left and right directions. The second transport head 721 can be switched above the cutting table 611 and the third transport member 81, and transport the half-cell obtained after cutting from the cutting table 611 to the third transport member 81. Figure 5As shown, in this embodiment, the second transport mechanism 72 is provided with a total of four second transport heads 721, which are arranged in two rows and two columns in a field shape, and can transport four half-cells on the cutting table 611 to the third transmission member 81 at one time. Preferably, the two rows of transport heads distributed along the left and right directions can be arranged to move relative to each other. On the cutting table 611, the distance between the two half-cells obtained by cutting the same cell is relatively close, and the two rows of second transport heads 721 distributed along the left and right directions also need to be relatively close to each other before the cell on the cutting table 611 can be transported. For the convenience of subsequent transmission and detection, a certain interval needs to be left between the two half-cells transferred to the third transmission member 81. Therefore, before placing the half-cell on the third transmission member 81, the two rows of second transport heads 721 distributed along the left and right directions are relatively far away, thereby expanding the spacing between the two half-cells.

[0049] In this embodiment, the third transmission member 81 includes a rotating transmission belt 811, on which a plurality of perforations 812 are arranged at intervals, and the perforations 812 penetrate the transmission belt 811 along the thickness direction. The third transmission mechanism 8 also includes a drying mechanism arranged below the transmission belt 811. For details, see Figure 6 As shown, the conveyor belt 811 is provided with two groups, including a first conveyor belt 811a and a second conveyor belt 811b arranged in sequence along the third conveying path, the drying mechanism is arranged below the first conveyor belt 811a, and the second inspection station 120 is located on the second conveyor belt 811b.

[0050] In order to prevent the battery cell from being damaged due to overheating during the cutting process, water will be sprayed on the cutting area to cool it down while cutting, so that the surface of the half-cell battery cell after cutting is covered with moisture. After the half-cell battery cell covered with moisture is transferred to the first conveyor belt 811a, the drying mechanism can dry the battery cell to evaporate the moisture and avoid affecting subsequent inspections. During this process, the perforations 812 on the first conveyor belt 811a facilitate the upward conduction of heat energy, thereby improving the drying effect.

[0051] In this embodiment, a light source (not shown in the figure) is arranged below the second conveyor belt 811b, and the second detection device 12 is arranged above the second conveyor belt 811b. The light emitted by the light source can be emitted upward from the perforation 812, so that the second detection device 12 can identify the half-cell above the second conveyor belt 811b. In this embodiment, the length of the first conveyor belt 811a is greater than the length of the second conveyor belt 811b, and the cell can obtain sufficient drying time.

[0052] See also Figure 1 , Figure 2As shown, during the transmission of the half-cell battery along the third transmission path, the half-cell battery first passes through the second detection device 12 and then reaches the sorting device 4, and the waste bin 41 and the temporary storage bin 42 are respectively arranged on different sides of the third transmission member 81. The sorting device 4 includes a sorting work head 43 that can reciprocate in the left and right directions, and the sorting work head 43 can be switched above the third transmission member 81, the waste bin 41 and the temporary storage bin 42, so as to transfer the damaged half-cell battery from the third transmission member 81 to the waste bin 41, or transfer the undamaged half-cell battery from the third transmission member 81 to the temporary storage bin 42.

[0053] In summary, the photovoltaic cell production device of the present embodiment divides the cell into two half-cells through the cutting device 3. After the cutting is completed, the sorting device 4 will also sort out the damaged half-cell. For those cell that are discarded as a whole due to partial damage, only the damaged half-cell needs to be discarded, and the remaining half-cell can still be used. The efficiency of the cell is fully utilized and waste is avoided.

[0054] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A photovoltaic cell production device, characterized in that: Along the transmission direction from back to front, the production device comprises: A first detection device, wherein the first detection device is configured to detect an extension direction of the battery sheet; A position adjustment device, wherein the position adjustment device is configured to adjust the battery sheet to extend along a preset direction; A cutting device, wherein the cutting device is configured to cut the battery cell along the preset direction to obtain two half-cell battery cells; A second detection device, the second detection device is configured to detect whether the half-cell battery sheet is damaged; A sorting device is communicatively connected to the second detection device, and the sorting device is configured to sort the damaged half-cells to a waste bin, and sort the undamaged half-cells to a temporary storage bin, so as to obtain half-cell photovoltaic cells.

2. The photovoltaic cell production device according to claim 1, characterized in that: The production device also includes a transmission device, and the transmission device includes: A first transport mechanism includes a first transport member that transports the battery cell along a first transport path, the first transport member transports the battery cell through a first inspection station, and the battery cell is inspected by the first inspection device at the first inspection station; A second transport mechanism, comprising a second transport member that transports the battery sheet along a second transport path, wherein the second transport member is transported through the cutting device along the second transport path; A first transport mechanism, used for transferring the battery sheet from the first transport member to the second transport mechanism; A third transmission mechanism, comprising a third transmission member for transmitting the half-cell battery sheet along a third transmission path, wherein the third transmission member sequentially passes through the second detection device and the sorting device along the third transmission path; The second transport mechanism is used to transfer the half-cell battery from the second transport member to the third transport member.

3. The photovoltaic cell production device according to claim 2, characterized in that: The second transmission mechanism further includes a carrying platform for carrying the battery sheet, and the position adjustment device is connected to the carrying platform and is used to drive the carrying platform to adjust its position in the horizontal direction. The transmission device further includes a third transport mechanism for transferring the battery sheet from the carrier platform to the second transmission member.

4. The photovoltaic cell production device according to claim 2, characterized in that: The first transmission path, the second transmission path and the third transmission path all extend in the front-to-back direction, and the first transmission member, the second transmission member and the third transmission member are arranged in sequence from back to front, and the first transmission member and the third transmission member are located on the same side of the second transmission member.

5. The photovoltaic cell production device according to claim 2, characterized in that: The third transmission member includes a rotatable transmission belt, a plurality of perforations are arranged at intervals on the transmission belt, and the perforations penetrate the transmission belt along the thickness direction. The third transmission mechanism also includes a drying mechanism arranged below the transmission belt.

6. The photovoltaic cell production device according to claim 2, characterized in that: The cutting device comprises a laser cutting work head and a control component for controlling the laser cutting work head to emit a laser beam. The laser cutting work head is suspended above the second transmission member and can emit a laser beam extending in a vertical direction.

7. The photovoltaic cell production device according to claim 2, characterized in that: The waste bin and the temporary storage bin are arranged on two different sides of the third transmission component.

8. The photovoltaic cell production device according to claim 1, characterized in that: The battery cell is square, and the cutting device is configured to cut along the center line of the battery cell to obtain two half-cell battery cells of the same size.

9. The photovoltaic cell production device according to claim 1, characterized in that: The surface of the battery cell has main grid lines arranged parallel to each other, and the first detection device is configured to detect the extension direction of the main grid lines and determine the extension direction of the battery cell according to the extension direction of the main grid lines.

10. The photovoltaic cell production device according to claim 9, characterized in that: When the battery cell and the cutting device cooperate with each other to perform cutting, the preset direction is parallel to the extending direction of the main grid line.

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