METHOD AND DEVICE FOR PRODUCING SOLAR PANELS

Abstract

The invention relates to improvements in the technical field of solar panel production. For this purpose, a method for producing solar panels (2) is proposed, among other things, in which two or more rows (4) of photovoltaic cells (3) are fed together to a solar panel assembly (2).

Description

METHOD AND DEVICE FOR PRODUCING SOLAR PANELS DESCRIPTION OF THE INVENTION The invention relates to a method and a device for producing solar panels. Such methods and devices are well-known in practice. In these, photovoltaic cells are assembled in rows, and solar panels are assembled from electrically interconnected rows. The object of the invention is to provide a procedure for the production of solar panels and a corresponding device that promote the efficient manufacture of solar panels. To solve the problem, a method is first proposed, with the means and characteristics of the first independent claim, for manufacturing solar panels. Specifically, to solve the problem, the aforementioned procedure proposes assembling at least two rows and that these at least two rows be fed together to equip the solar panel. By feeding two or more rows together, especially simultaneously, the solar panel can be equipped in a shorter time, thus promoting more efficient energy production. Ref. 349178 solar panels. The two rows can be fed together to the solar panel equipment via a motorized transfer unit, for example, using a table and / or trays and / or a vacuum table and / or conveyor belt. The use of a motorized transfer unit can facilitate largely or even fully automated solar panel production. To equip the solar panel with the rows without changing an arrangement of the photovoltaic cells in the rows generated during the assembly of the rows, it is advantageous if a relative alignment of the photovoltaic cells is maintained within a row and / or within two different rows during feeding. In a finished solar panel, a specific voltage level can be applied within each individual row of photovoltaic cells. Therefore, there is no voltage accumulation along the length of the rows. However, voltage accumulation can occur along electrically connected rows, and thus transversely or perpendicular to the length of the rows. Therefore, according to this method, photovoltaic cells can be assembled in rows, with an electrical voltage level applied within each row. Solar panels can then be assembled from electrically connected rows, resulting in a voltage buildup in the solar panel occurring across the electrically connected rows, and thus transversely or perpendicularly to the longitudinal direction of the rows. Therefore, within the meaning of the claimed invention, a string can be distinguished from a conventional string of photovoltaic cells. In a string, the photovoltaic cells are electrically connected to each other in such a way that an accumulation of electrical voltage occurs in the longitudinal direction of the string through the electrically connected photovoltaic cells of the string. For the electrical connection of photovoltaic cells within a row and / or of photovoltaic cells from different rows, especially adjacent ones, an electrically conductive adhesive can be applied to the photovoltaic cells. To prevent the breakage of an adhesive bead when applying electrically conductive adhesive to a row of photovoltaic cells, it can be advantageous to adapt a series of rows fed in common to a specific application rate of the electrically conductive adhesive. In particular, when the photovoltaic cells are arranged in at least two rows by means of a transfer unit, the maximum feed or transfer rate at which the rows are fed in common to the solar panel equipment may be limited by the cycle time of the transfer unit during the photovoltaic cell arrangement. The greater the number of rows fed together, the lower the feed or transfer speed at which the at least two rows can be fed to the equipment. When electrically conductive adhesive is to be applied during the feeding of the at least two rows of photovoltaic cells to the solar panel equipment—for example, by relative movement of the rows as they are fed to a supply unit that dispenses the adhesive—it may therefore be advisable to adjust the application speed of the electrically conductive adhesive to ensure safe application of the adhesive during the process. If the application speed of the electrically conductive adhesive is variable, the application speed of the electrically conductive adhesive can also be adapted to a series of rows fed in common. In one embodiment of the method, it is envisaged that in the first part of the cycle, a first group of rows fed together are fed to the supply unit for electrically conductive adhesive at a first vertical distance, and a second group of rows fed together are then fed to the supply unit at a second vertical distance different from the first. Therefore, in this embodiment of the process, there may be two transfer planes on which different groups of rows fed together are fed to the solar panel assembly. These transfer planes may be arranged vertically one above the other, so that the transfer planes have different vertical distances to a supply point, for example, a supply unit, for electrically conductive adhesive on the rows fed together. To facilitate the connection of adjacent rows, an electrically conductive adhesive can be applied to one cell, offset laterally from the longitudinal central axis of a row of photovoltaic cells. This allows two adjacent rows to be bonded together by overlapping each other. To solve the problem, a method for creating solar panels of the type mentioned above is further proposed, which has the characteristics of the second independent claim related to this method. To solve the problem, the method defined at the beginning proposes, in particular, that transposition pieces be used in the assembly of the rows to form a transposition relative to one another of the adjacent rows. Transposing adjacent rows can be beneficial in creating a mechanically secure and stable connection between adjacent rows within a solar panel. Using relatively staggered rows of photovoltaic cells in a solar panel allows for the electrical connection of a single photovoltaic cell in a row to several other photovoltaic cells in the same row and / or adjacent rows surrounding it. This can lead to a solar panel assembled in this way producing high output even if one or more of the panel's photovoltaic cells are shaded. If the transposition of adjacent rows is already performed during the assembly of the photovoltaic cell rows before the solar panel is fitted, the handling of the rows during assembly can be considerably simplified. This can significantly increase the efficiency of the method in solar panel production. At this point it is worth mentioning that the use of such transposition pieces may also be useful in the aforementioned method, which is characterized by the features of the first independent claim 1. Transposing pieces can be used, for example, photovoltaic cells that have a shorter length and / or a different geometry compared to other photovoltaic cells in a row. In one form of the method, it can be provided that at least two mutually transposed rows feed together to the equipment. The photovoltaic cells, which are assembled in rows, can be called photovoltaic cell tiles. In one variation of the method, groups of at least two parallel rows are formed simultaneously and fed into a common system. This allows the number of rows fed together to be increased by scaling up the process. To solve the problem, a device for the production of solar panels is also proposed, which has the characteristics of the means in the independent claim relating to this device. Thus, to solve the problem, it is proposed, in particular, that the device defined at the beginning comprise the means by which the device is configured to carry out a method according to one of the claims relating to a method of producing solar panels. In one version of the device, it can be envisaged that it will have a motorized transfer unit with which at least two rows of photovoltaic cells can be fed together to equip a solar panel that is to be produced. A motorized transfer unit can be, for example, a tray, a conveyor table (particularly one with a vacuum table), a conveyor belt (particularly one with a vacuum table), and / or a vacuum table. With the aid of a vacuum table, photovoltaic cells arranged in rows can be secured to the vacuum table during feeding into the equipment using negative pressure. Securing photovoltaic cells by negative pressure is particularly gentle and can help reduce or even completely eliminate rejects in solar panel production. The motorized transfer unit can be configured to move photovoltaic cells from the rows from a charging point to a discharging point, where the rows of photovoltaic cells to equip a solar panel are removed from the transfer unit. The transfer unit can be configured and / or defined with at least two support positions, one for each row of photovoltaic cells. This allows the transfer unit to power at least two rows of photovoltaic cells simultaneously in a solar panel array. In a preferred embodiment of the device, the transfer unit may have at least one suction opening for each support site. In this way, rows of photovoltaic cells arranged on at least two support sites of the transfer unit can be attached to the unit by means of negative pressure. The device may include a vacuum generation unit that allows the photovoltaic cell arrays to be vacuum-sealed to the transfer unit, particularly during the simultaneous supply of at least two arrays for a solar panel. As mentioned previously, the use of negative pressure to secure the arrays enables a particularly gentle and therefore efficient attachment of the photovoltaic cells during their feeding into the transfer unit. The vacuum generating unit can be connected to the suction ports of the transfer unit. Through these ports, the negative pressure generated by the vacuum generating unit can be transferred to the photovoltaic cell arrays. The device may also include a supply unit for applying electrically conductive adhesive to the photovoltaic cell arrays. This supply unit can be positioned to deliver the adhesive to the arrays of photovoltaic cells arranged on the transfer unit. For example, the supply unit could be placed between a loading point, where the photovoltaic cells are placed to form arrays on the transfer unit, and a discharging point, where the arrays are discharged from the transfer unit. This allows the electrically conductive adhesive to be applied to the photovoltaic cell arrays using the supply unit, through relative movement between the supply unit and the transfer unit.In this way, the strands can be coated with an electrically conductive adhesive during their transfer between the charging and discharging points. If necessary, relative movement can be the means of transferring the strands. The supply unit may have a number of supply nozzles that correspond to a number of support sites for rows of photovoltaic cells on the transfer unit. This allows electrically conductive adhesive to be applied to all rows of photovoltaic cells arranged on the transfer unit during the transfer process. In one embodiment of the device, the supply unit, specifically at least one supply nozzle from which electrically conductive adhesive can be applied to rows of photovoltaic cells, is movable in the longitudinal direction of the row support sites on the transfer unit and, consequently, in the longitudinal direction of the rows arranged on the transfer unit. This allows electrically conductive adhesive to be applied to the photovoltaic cell rows feeding the equipment using a transfer unit, where the transfer unit performs a transfer movement that aligns itself transversely or perpendicularly to the longitudinal direction of the photovoltaic cell rows arranged on the transfer unit.In this case, the movement of the supply unit, in particular its supply nozzles, can then be aligned transversely or correspondingly perpendicular to the transfer movement of the transfer unit. The device may include a loader for supplying photovoltaic cells. The loader may comprise, for example, a transport mechanism, such as a conveyor belt, on which a supply of photovoltaic cells and / or transposing parts can be moved to a loading position. This facilitates a particularly efficient and largely uninterrupted supply of photovoltaic cells for the production of solar panels. The device may also have a transfer unit, in particular with a handling robot, for example, a rotary arm robot, with which the photovoltaic cells can be arranged in rows on the transfer unit. With the help of the transfer unit, it is possible to take the photovoltaic cells and / or transposition assembly pieces, for example, from the charger already mentioned above. The transfer unit, in particular the handling robot mentioned above, may include at least one suction gripper. With the aid of a suction gripper, it is possible to grasp and then gently release the photovoltaic cells. For controlling photovoltaic cells, the device may have a control unit. The control unit may include at least one optical control means, for example, a camera. In one embodiment of the device, the control unit is located between a photovoltaic cell feeder and the transfer unit, specifically between the photovoltaic cell feeder and the transfer unit mentioned above. This allows the photovoltaic cells to be removed from the feeder and arranged in rows on the transfer unit. This enables testing of the photovoltaic cells removed from the feeder before they are arranged in rows on the transfer unit. The charger may include at least one conveyor belt with which the photovoltaic cells can be placed in a charging position. The device may also include an equipment unit, in particular with at least one gripper, preferably with at least a suction gripper. The equipment unit may be configured to collect one or more rows of photovoltaic cells supplied by the transfer unit at a discharge point and / or transfer them to a subsequent processing and / or handling stage, in particular to a downstream transport unit of the device. With the aid of the equipment unit, it is possible to equip the solar panel with the rows of photovoltaic cells supplied by the transfer unit. The device may have a transport unit downstream of the transfer unit. With the help of the transport unit, at least one solar panel equipped with rows of photovoltaic cells can be fed to a downstream processing station. For example, a downstream processing station could be an oven in which the electrically conductive adhesive is cured, which can then be used to connect the rows of photovoltaic cells of a panel together. A downstream processing station could also be, for example, a packaging and / or loading station. A base, which can be configured for repositioning the array, could be used as a packaging and / or loading station. In one embodiment of the device, it is established that a transfer movement of the transfer unit has a transverse alignment, in particular at a right angle, with respect to a longitudinal direction of the support sites for photovoltaic cell rows on the transfer unit or in the longitudinal direction of the support sites for rows on the transfer unit. In one embodiment of the device, a transfer movement of the transfer unit is oriented transversely, particularly at a right angle, to a transport movement of the transport unit. In another embodiment of the device, a transfer movement of the transfer unit is aligned in the direction of a transport movement of the transport unit.In this embodiment of the device, it may be advantageous if the supply unit mentioned above, at least one supply nozzle of the supply unit, with which electrically conductive adhesive can be applied to the rows of photovoltaic cells, can be moved relative to the transfer unit and in the longitudinal direction of the support sites for the rows and, therefore, in the longitudinal direction of the rows of photovoltaic cells that are located on the transfer unit and / or can be moved relative to the transfer unit and transversely or at a right angle to the support sites and / or the rows of photovoltaic cells. The device may have a control unit by which the device is prepared to carry out the method in accordance with one of the claims addressed to this device. The invention is described in more detail below by means of illustrative embodiments, but is not limited to the illustrative embodiments shown. Other illustrative modalities result from combining the characteristics of individual claims or of several claims and / or from combining one or more characteristics of the illustrative modalities. They show: Figures 1 and 2 show a first exemplary modality of a device for producing solar panels, in which the device has a transfer unit in the form of a mobile vacuum table, which can also be called a tray, with which a total of three rows of photovoltaic cells can be transferred together to a discharge position to equip a solar panel with the rows, Figures 3 and 4 show a second example of an illustrative modality of a device for the production of solar panels, in which in this case a transfer unit of the device, with which three rows of photovoltaic cells can be fed together to the equipment of a solar panel, is designed as a conveyor belt, and Figures 5 and 6 show a third example of an exemplary modality of a device for the production of solar panels, in which this device also has a transfer unit in the form of a conveyor belt, although in this case a transfer movement of the transfer unit is aligned transversely, that is, at a right angle, with respect to the alignment of the rows of photovoltaic cells arranged on the transfer unit. In the following description of different embodiments of the invention, elements that are identical in function are given reference numbers that are identical, even if they differ in design or form. All figures show in each case a device for the production of solar panels 2 that is designated with 1 in its entirety. Each device 1 has means by which device 1 is configured to carry out the method for creating solar panels 2 described below. In this, the photovoltaic cells 3 are assembled in rows 4 and the solar panels 2 are assembled from the rows 4 electrically connected to each other. The method anticipates that at least two rows are assembled. 4, in the examples shown in the figures at least three rows 4, and that the rows 4 are then fed together to equip a solar panel 2. In all the exemplary device modalities 1 shown in the figures, the rows 4 are fed together by means of a motorized transfer unit 5 to equip the solar panel 2. In the exemplary form of this device 1 shown in Figures 1 and 2, a vacuum table is used as a transfer unit 5, which can be moved between a loading point 8 and a discharging point 9. The device 1 shown in Figures 3 and 4 has a conveyor belt as a transfer unit 5. By means of the transfer motion of the conveyor belt, the rows 4 that are assembled on the conveyor belt can be fed together to equip the solar panel 2. The device 1 shown in Figures 5 and 6 is also equipped with a transfer unit 5, which is designed as a conveyor belt. Whereas in device 1 shown in Figures 3 and 4 there is a transfer movement of the transfer unit 5 in the longitudinal direction of the rows 4 arranged in the transfer unit 5, the transfer movement of the transfer unit 5 of device 1 shown in Figures 5 and 6 is oriented transversely, i.e., at a right angle with respect to the longitudinal direction of the rows 4 of photovoltaic cells 3 assembled on the transfer unit 5. In the method, which can be carried out in all three exemplary modes of the devices 1 shown, it is foreseen that during the feeding a relative alignment of the photovoltaic cells 3 within a row 4 and also of the rows 4 with each other, which are assembled on the transfer unit 5, is maintained. A number of shared rows 4 are adapted to the application speed of an electrically conductive adhesive. The electrically conductive adhesive is applied to the rows 4 of the photovoltaic cells 3 to mechanically and electrically connect the photovoltaic cells 3 and the rows 4. The application of the electrically conductive adhesive to a row 4 of photovoltaic cells 3 can be carried out with a lateral displacement relative to the longitudinal central axis of a respective row 4. Each of the devices 1 shown in the figures has in each case a negative pressure generating unit 6, with which the rows 4 of photovoltaic cells 3 can be fixed at least temporarily by negative pressure in the respective transfer unit 5. The negative pressure generating units 6 are only shown in a very schematic way in the figures. Each device shown also has a supply unit 7 to supply electrically conductive adhesive to the rows 4 of photovoltaic cells 3 that are arranged in the transfer unit 5. The supply units 7 of the devices 1 are respectively arranged between the loading point 8 already mentioned above and the unloading point 9 of the rows 4, also already mentioned above. The supply unit 7 of device 1 shown in Figures 1-4 comprises a number of supply nozzles 10 corresponding to a number of support sites 11 for the rows 4 of photovoltaic cells 3 in the transfer unit 5. Consequently, the supply unit 7 of device 1 shown in Figures 1-4 has three supply nozzles 10 in each case. The vertical projections of the supply nozzles 10 onto the support sites 11 for the photovoltaic cells 2 in the transfer units 5, which are at least temporarily positioned beneath them, can be laterally offset from the longitudinal centerlines of the support sites 11. This allows for the application of electrically conductive adhesive onto the rows 4 with lateral offset from a longitudinal centerline of the rows 4. The vacuum generating units 6 of the devices 1 are connected to the suction openings 23 that the respective transfer unit 5 has. Each transfer unit 5 has in each case at least one series 24 of such suction openings 23 for each of its support sites 11. In this way, the rows 4 of photovoltaic cells 3 can be reliably fixed in the transfer units 5 during their feeding. In the exemplary embodiment of a device 1 for the production of solar panels 2 shown in Figures 5 and 6, the supply unit 7 has a supply nozzle 10 that can be moved in the longitudinal direction of the rows 4 of photovoltaic cells 3 arranged on the transfer unit 5. By moving the supply nozzle 10 along the rows 4 arranged on the transfer unit 5, the electrically conductive adhesive can be supplied row by row to the rows 4 arranged at least temporarily below the supply unit 7. A path along which the supply nozzle 10 can be moved during the supply of electrically conductive adhesive can have a lateral displacement with respect to a central longitudinal axis of the row 4 to be supplied with electrically conductive adhesive. During the supply of electrically conductive adhesive, the position of the supply nozzle 10, perpendicular to the longitudinal extension of the row 4 being supplied with the electrically conductive adhesive, can be kept constant. In this context, it can be anticipated that the supply nozzle 10 can move in sync with the transfer unit 5 in the direction of the transfer unit's movement. In all the devices 1 shown in the figures, transposition pieces 12 are used when assembling the rows 4, to create a transposition of the adjacent rows 4, first in the respective transfer unit 5 and subsequently also in the completed solar panel 2. Transposition pieces 12 are photovoltaic cells that have a shorter length compared to other photovoltaic cells that are designated with 3 in the figures and that are not designed as transposition pieces 12. The figures show that at least two, i.e., three or even more rows 4 transposed relative to each other are fed together to equip a solar panel 2. In one version of the method, groups of at least two rows 4 can be assembled simultaneously, which are fed together to a common equipment. One of the transfer units 5 shown in the figures can also be used for this purpose. To supply the photovoltaic cells 3 and the transposition pieces 12, each of the devices shown in Figure 1 has a loader 13. With the help of a transfer unit 14, which has a handling robot 15, namely a rotary arm robot, the transposition pieces 12 and the photovoltaic cells 3 stored and supplied in the respective loader 13 can be taken out and arranged in rows 4 in the respective transfer unit 5. Each loader 13 has a total of two conveyor belts 16, on which the transposition pieces 12 are stored in stacks on one side and the comparatively somewhat longer regular photovoltaic cells 3 on the other. For the control of photovoltaic cells 3 and also transposition pieces 12, each device 1 has a control unit 17. The control units 17 are arranged between the charger 13 and the transfer unit 14 of the respective device 1 and comprise respectively at least one optical control means, for example, a camera 18. With the help of the handling robot 15 of the transfer unit 14, the photovoltaic cells 3 and / or the transposition pieces 12 extracted from the loader 13 can be presented to the camera 18 of the control unit 17 to test the photovoltaic cells 3 and the transposition pieces 12 before arranging them in the respective transfer unit 5. Downstream of the respective transfer unit 5 and also of the discharge point 9, each of the devices 1 has an equipment unit 19. Each equipment unit 19 comprises several grippers 20, which are designed as suction grippers. The equipment units 19 are prepared to receive one or more or even all of the rows 4 of photovoltaic cells 3 provided by the respective transfer unit 5 at the discharge point 9 and transfer them to a downstream transport unit 21 of the respective device 1. The respective transport unit 21 is used to supply at least one solar panel 2 equipped with rows 4 of photovoltaic cells 3, 12 to a downstream processing station, for example, a furnace. As mentioned above, a transfer movement of the transfer unit 5 of the devices 1 shown in Figures 1-4 is oriented in the longitudinal direction of the support sites 11 and therefore also in the longitudinal direction of the rows 4 on the transfer unit 5. In the modality of device 1 shown in Figures 5 and 6, the transfer movement of the transfer unit 5 is transverse, i.e., orthogonal to a longitudinal direction of the support sites 11 and is therefore transversely oriented, i.e., orthogonal to a longitudinal direction of the rows 4 arranged on the support sites 11 of the transfer unit 5. The transfer movements of the transfer unit 5 of the devices 1 shown in Figures 1-4 are oriented transversely, i.e., orthogonal to the transport movement of the respective transport unit 21, which is downstream of the transfer unit 5. In the exemplary mode of device 1 shown in Figures 5 and 6, the transfer movement of the transfer unit 5 is oriented in the direction of a transport movement of the transport unit 21 used therein. The transport unit 21 of device 1 shown in Figures 5 and 6, like the transfer unit 5, is designed as a conveyor belt. To carry out the method described above, each of the devices 1 shown in the figures also has a control unit 22. By means of this control unit 22, the functional units mentioned above of the respective device 1 can be controlled in the manner provided for by the method. The invention relates to improvements in the technical field of solar panel production. For this purpose, among other things, a method for producing solar panels 2 is proposed, in which at least two or more rows 4 of photovoltaic cells 3 are fed together to equip a solar panel 2. List of reference symbols 1 Device 2 Solar panel 3 Photovoltaic cell 4 Row 5 Transfer unit 6 Vacuum generator unit 7 Supply unit 8 Loading position 9 Discharge position 10 Supply nozzle 11 Support site 12 Transposition piece 13 Loader 14 Transfer unit 15 Handling robot 16 Conveyor belt 17 Control unit 18 Camera 19 Equipment unit 20 Gripper 21 Transport unit 22 Control unit 23 Suction opening 24 Row of 23 It is hereby stated that, as of this date, the best method known to the applicant for putting the aforementioned invention into practice is the one that is clear from the present description of the invention.

Claims

1. A method for producing solar panels, wherein the photovoltaic cells are assembled in rows and the solar panels are assembled from electrically connected rows, characterized in that at least two rows are assembled transposed relative to each other and the at least two rows are fed together to equip the solar panel, wherein in assembling the rows transposition pieces are used to form a transposition of adjacent rows relative to each other, and in that to connect adjacent rows of photovoltaic cells, electrically conductive adhesive is applied to the row with a lateral displacement with respect to a longitudinal central axis of a row of photovoltaic cells, whereupon two adjacent rows are glued to each other mutually overlapping.

2. The method according to claim 1, characterized in that, to equip the solar panel, the at least two rows are fed together by means of a motorized transfer unit, in particular by means of a tray and / or table and / or by means of a conveyor belt and / or by means of a vacuum table.

3. The method in accordance with any of the preceding claims, characterized in that a relative orientation of the photovoltaic cells is maintained within one and / or two different rows during feeding.

4. The method according to any of the preceding claims, characterized in that a number of commonly fed rows is adapted to an application rate of an electrically conductive adhesive and / or that an application rate of an electrically conductive adhesive is adapted to a number of commonly fed rows.

5. The method in accordance with any of the preceding claims, characterized in that groups of at least two rows are assembled in parallel over time, which are fed into a common equipment.

6. A device for the production of solar panels, characterized in that it comprises means by which the device is configured to carry out a method in accordance with any of the preceding claims, namely, a motorized transfer unit, with which at least two rows of photovoltaic cells can be fed together to equip a solar panel to be produced, and a supply unit for supplying electrically conductive adhesive onto rows of photovoltaic cells, and a control unit by which the device is configured to carry out the method in accordance with any of the preceding claims.

7. The device according to claim 6, characterized in that it comprises a motorized transfer unit, namely a tray and / or a table and / or a conveyor belt and / or a vacuum table, and / or in that the motorized transfer unit is equipped to move the photovoltaic cells from the rows from a loading point to a discharging point.

8. The device according to the preceding claim, characterized in that the transfer unit has at least two support sites for the rows of photovoltaic cells, preferably such that the transfer unit has at least one row of suction openings for each support site.

9. The device according to any of claims 6 to 8, characterized in that it comprises a vacuum generating unit with which the rows of photovoltaic cells can be fixed by negative pressure in the transfer unit, in particular in that the vacuum generating unit is connected to suction openings of the transfer unit.

10. The device according to any of claims 6 to 9, characterized in that the supply unit of the device is a supply unit for supplying electrically conductive adhesive onto rows of photovoltaic cells that are arranged on the transfer unit and / or in that the supply unit is arranged between a charging point and a discharging point of the row device.

11. The device according to claim 10, characterized in that the supply unit has a number of supply nozzles corresponding to a number of support sites for rows of photovoltaic cells of the transfer unit, and / or in that the supply unit, in particular the supply nozzles of the supply unit, can be displaced in the longitudinal direction of the rows arranged on the transfer unit.

12. The device according to any of claims 6 to 11, characterized in that it comprises a charger for supplying photovoltaic cells and / or a transfer unit, in particular with a handling robot, by which the photovoltaic cells can be removed from a storage unit and / or arranged in rows on the transfer unit.

13. The device according to any of the 32 preceding claims, characterized in that it has a control unit for controlling photovoltaic cells, in particular, the control unit comprising at least one optical control means, for example a camera.

14. The device according to any of claims 6 to 13, characterized in that it comprises an equipment unit, in particular with at least one clamp, preferably with at least one suction clamp, wherein the equipment unit is prepared to receive at least one or more or all of the rows of photovoltaic cells supplied by the transfer unit at a discharge point, and / or transfer them to a further processing and / or handling stage, in particular to a further transport unit.

15. The device according to any of claims 6 to 14, characterized in that it has a transport unit downstream of the transfer unit, by which at least one solar panel equipped with rows of photovoltaic cells can be fed to a downstream processing station.

16. The device according to any of claims 6 to 15, characterized in that a transfer movement of the transfer unit is transversely oriented, in particular at a right angle to a longitudinal direction of the support sites for the rows in the transfer unit or in a longitudinal direction of the support sites for the rows in the transfer unit.

17. The device according to any of claims 6 to 16, characterized in that a transfer movement of the transfer unit is oriented transversely, in particular at a right angle, with respect to a transport movement of the transport unit or in the direction of a transport movement of the transport unit.

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