Photovoltaic module repair equipment

Abstract

The embodiment of the invention relates to the photovoltaic field, and provides photovoltaic module repair equipment, a photovoltaic module comprises a plurality of battery pieces, and the photovoltaic module repair equipment comprises an abnormity detection positioning device used for detecting the photovoltaic module and confirming abnormal battery pieces in an abnormal battery string; the repair bearing table is used for bearing an abnormal battery string; the grabbing mechanism is used for adsorbing the area, adjacent to the first boundary, of the covering film on the abnormal battery piece surface; the movement control mechanism is connected with the grabbing mechanism and used for controlling the grabbing mechanism to move in the vertical direction and controlling the grabbing mechanism to move upwards to the preset height in the vertical direction after the grabbing mechanism adsorbs the covering film so as to apply pulling force to the covering film. And after the grabbing mechanism moves to the preset height, the grabbing mechanism is controlled to move in the direction from the first boundary to the second boundary of the abnormal battery piece, so that the grabbing mechanism drives the covering film to be stripped from the abnormal battery piece. The photovoltaic module repair equipment provided by the embodiment of the invention can facilitate the repair of the photovoltaic module.

Description

Technical Field

[0001] The disclosed embodiments relate to the photovoltaic field, and in particular to a photovoltaic module repair device. Background Art

[0002] In the film-coated battery string, one or both sides of the battery cell are connected with welding tape and adhesive film. Two adjacent battery cells are connected by a set of welding tapes. The adhesive film is heated and bonded to the battery cell to fix the welding tape to the battery cell.

[0003] As the cost of adhesive film decreases and busbar-free technology matures, film-coated battery strings are increasingly recognized by the market. At present, the yield rate of film-coated battery strings produced by battery string production equipment has not reached 100%. Some of the film-coated battery strings produced have defective cells, and the film-coated battery strings need to be repaired before they can continue to be used. Summary of the invention

[0004] The embodiments of the present disclosure provide a photovoltaic module repair device, which can at least facilitate the repair of photovoltaic modules.

[0005] According to some embodiments of the present disclosure, on the one hand, an embodiment of the present disclosure provides a photovoltaic module repair device, wherein the photovoltaic module includes a plurality of battery strings, the battery string includes a plurality of connected battery cells, adjacent battery cells are connected via welding strips, and a coating is provided on the surface of the battery cell, the coating is used to fix the welding strip on the surface of the battery cell, including: an abnormality detection and positioning device, the abnormality detection and positioning device is used to detect the photovoltaic module, select the abnormal battery string in the photovoltaic module, and confirm the abnormal battery cell in the abnormal battery string; a repair carrier, the repair carrier is used to carry the abnormal battery string; a gripping mechanism, at least used to adsorb the surface of the abnormal battery cell an area of ​​the coating adjacent to the first boundary; a moving control mechanism, the moving control mechanism being connected to the grasping mechanism and being used to control the grasping mechanism to move in a vertical direction, wherein after the grasping mechanism absorbs the coating, the moving control mechanism controls the grasping mechanism to move upward in the vertical direction to a preset height to apply a pulling force to the coating, and after the grasping mechanism moves to the preset height, the moving control mechanism is also used to control the grasping mechanism to move along the first boundary toward the second boundary of the abnormal battery cell, so that the grasping mechanism drives the coating to be peeled off from the abnormal battery cell, and the second boundary is opposite to the first boundary.

[0006] In some embodiments, the gripping mechanism includes: at least one suction cup, which is used to adsorb the coating, wherein there is a pressure difference between the cavity of the suction cup facing the coating and the outside; a heating device, which is located on the side of the suction cup facing the second boundary and is used to heat the coating.

[0007] In some embodiments, the number of the suction cups is greater than or equal to 2, and along the arrangement direction of the plurality of suction cups, the distance between adjacent suction cups located in the middle is greater than or equal to the distance between adjacent suction cups located at the edge.

[0008] In some embodiments, the movement control mechanism is further used to control the grasping mechanism to move downward in the vertical direction after the grasping mechanism absorbs the coating so as to squeeze the gas in the cavity.

[0009] In some embodiments, the gripping mechanism further includes: an exhaust pipe, one end of which is connected to the cavity; and an exhaust pump, which is connected to the other end of the exhaust pipe, and is used to exhaust air from the cavity during the peeling of the film from the abnormal battery cell.

[0010] In some embodiments, the gripping mechanism further includes: a heating element, wherein the heating element is fixed to the outer side of the suction cup and is used to heat the suction cup.

[0011] In some embodiments, it also includes: a blowing mechanism, which is located on the side of the gripping mechanism facing the first boundary, and the blowing port of the blowing mechanism is directed toward the junction where the film is peeled off from the abnormal battery cell, for blowing the film during the process of removing the film.

[0012] In some embodiments, the angle between the blowing direction of the blowing port and the normal direction of the surface of the abnormal battery cell is 30° to 60°.

[0013] In some embodiments, it also includes: a film pasting mechanism, which is used to re-paste the film on the surface of the abnormal battery cell after removing the film on the surface of the abnormal battery cell; a heating block, which is directly opposite to the rework carrier and is used to press and heat the re-pasted film.

[0014] In some embodiments, the gripping mechanism further includes: a clamping member connected to the movement control mechanism, and the movement control mechanism controls the clamping member to clamp and fix the boundary position of the film during the peeling of the film from the abnormal battery cell.

[0015] The technical solution provided by the embodiments of the present disclosure has at least the following advantages: the photovoltaic module is tested by an abnormal detection and positioning device, the abnormal battery string in the photovoltaic module is selected, and the abnormal battery cell in the abnormal battery string is located, and then the film on the surface of the abnormal battery cell is first adsorbed by the cooperation of the grasping mechanism and the mobile control mechanism, and then the mobile control mechanism provides external force to peel the film from the battery cell, so that the battery cell can be reused and the number and scrap rate of scrapped battery cells can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings, and these exemplified descriptions do not constitute a limitation on the embodiments. Unless otherwise specified, the pictures in the drawings do not constitute a scale limitation. In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the traditional technology, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of the structure of an abnormal battery cell provided by an embodiment of the present disclosure;

[0018] Figure 2 A schematic diagram of the structure of a photovoltaic module repair device and a solar cell provided in an embodiment of the present disclosure;

[0019] Figure 3 A schematic diagram of the structure of a photovoltaic module repair device provided by the present disclosure;

[0020] Figure 4 A schematic diagram of the structure of another photovoltaic module repair device provided by an embodiment of the present disclosure;

[0021] Figure 5 A schematic diagram of the structure of a gripping mechanism provided in one embodiment of the present disclosure;

[0022] Figure 6 A schematic structural diagram of a film-laminating and pasting mechanism provided in one embodiment of the present disclosure. DETAILED DESCRIPTION

[0023] From the background technology, we can know that low-temperature welding of photovoltaic modules is a process that uses a coating to fix the welding strip on the surface of the battery to replace conventional high-temperature welding. It solves problems such as warping and micro-cracks on the surface of the battery, and is of great significance to reducing the cost and improving the efficiency of photovoltaic modules.

[0024] However, it is inevitable that defective battery strings will be produced during the low-temperature welding process. Currently, there is no better method for dealing with defective battery strings in the industry, which results in a lot of waste and increased costs.

[0025] The disclosed embodiment provides a photovoltaic module repair equipment, which tests the photovoltaic module through an abnormal detection and positioning device, selects the abnormal battery string in the photovoltaic module, and locates the abnormal battery cell in the abnormal battery string, and then first adsorbs the coating on the surface of the abnormal battery cell through the cooperation of a grasping mechanism and a mobile control mechanism, and then provides external force through the mobile control mechanism to peel off the coating from the battery cell, so that the battery cell can be reused and the number and scrap rate of scrapped battery cells can be reduced.

[0026] In the description of the embodiments of the present disclosure, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present disclosure, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0027] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present disclosure. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0028] In the description of the embodiments of the present disclosure, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists, A and B exist at the same time, and B exists. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0029] In the description of the embodiments of the present disclosure, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0030] In the description of the embodiments of the present disclosure, the orientations or positional relationships indicated by technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the embodiments of the present disclosure and simplifying the description. They do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the embodiments of the present disclosure.

[0031] In the description of the embodiments of the present disclosure, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0032] In the accompanying drawings corresponding to the embodiments of the present disclosure, the thickness and area of ​​the layers are magnified for better understanding and ease of description. When describing a component (such as a layer, a film, a region or a substrate) on another component or on the surface of another component, the component may be "directly" located on the surface of the other component, or a third component may be present between the two components. On the contrary, when describing a component on the surface of another component or when another component is formed or provided on the surface of a component, it means that there is no third component between the two components. In addition, when describing a component as being "substantially" formed on another component, it means that the component is not formed on the entire surface (or front surface) of the other component, nor is it formed on a partial edge of the entire surface.

[0033] In the description of the embodiments of the present disclosure, when a component "includes" another component, unless otherwise specified, other components are not excluded, and other components may be further included. In addition, when a component such as a layer, a film, a region, or a plate is referred to as being "on / located on" another component, it may be "directly on" the other component (i.e., located on the surface of the other component with no other components between them), or another component may exist in between. In addition, when a component such as a layer, a film, a region, a plate, etc. is "directly located on" another component, or when a component such as a layer, a film, a region, a plate, etc. is located on the surface of another component, it means that no other components are located in between.

[0034] The terms used in the description of the various embodiments described herein are only used to describe specific embodiments and are not intended to be limiting. As used in the description of the various embodiments described and in the appended claims, "the components" are also intended to include plural forms unless the context clearly indicates otherwise. Among them, components include components such as layers, films, regions, or plates.

[0035] The following will describe the various embodiments of the present disclosure in detail with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that in the various embodiments of the present disclosure, many technical details are provided in order to enable the reader to better understand the present disclosure. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solutions claimed in the present disclosure can be implemented.

[0036] refer to Figures 1 to 3 ,in, Figure 1 A schematic diagram of the structure of an abnormal battery cell provided by an embodiment of the present disclosure is shown in FIG. Figure 2 A schematic diagram of the structure of a photovoltaic module repair device and a solar cell provided in an embodiment of the present disclosure. Figure 3 A schematic diagram of the structure of a photovoltaic module repair device provided by the present invention.

[0037] In some embodiments, a photovoltaic module includes a plurality of battery strings, the battery string includes a plurality of connected battery cells, adjacent battery cells are connected via welding strips 11, and a coating 12 is provided on the surface of the battery cell, the coating 12 is used to fix the welding strip 11 on the surface of the battery cell, and is characterized in that it includes: an abnormality detection and positioning device (not shown), the abnormality detection and positioning device is used to detect photovoltaic modules, select abnormal battery strings in the photovoltaic modules, and confirm abnormal battery cells 10 in the abnormal battery strings.

[0038] The photovoltaic assembly further includes: a repair support platform 101, and the repair support platform 101 is used to support abnormal battery strings.

[0039] The photovoltaic assembly further includes: a grasping mechanism 102 , which is at least used to absorb the area of ​​the coating 12 on the surface of the abnormal solar cell 10 adjacent to the first boundary.

[0040] The photovoltaic assembly also includes: a mobile control mechanism 103, which is connected to the gripping mechanism 102 and is used to control the gripping mechanism 102 to move in the vertical direction, wherein after the gripping mechanism 102 adsorbs the coating 12, the mobile control mechanism 103 controls the gripping mechanism 102 to move upward in the vertical direction to a preset height to apply a pulling force to the coating 12, and after the gripping mechanism 102 moves to the preset height, the mobile control mechanism 103 is also used to control the gripping mechanism 102 to move along the first boundary toward the second boundary of the abnormal battery cell 10, so that the gripping mechanism 102 drives the coating 12 to be peeled off from the abnormal battery cell 10, and the second boundary is opposite to the first boundary.

[0041] The disclosed embodiment provides a photovoltaic module repair equipment, which tests the photovoltaic module through an abnormal detection and positioning device, selects the abnormal battery string in the photovoltaic module, and locates the abnormal battery cell 10 in the abnormal battery string, and then first adsorbs the coating 12 on the surface of the abnormal battery cell 10 through the cooperation of the grasping mechanism 102 and the moving control mechanism 103, and then provides external force through the moving control mechanism 103 to peel off the coating 12 from the battery cell, so that the battery cell can be reused and the number and scrap rate of scrapped battery cells can be reduced.

[0042] In some embodiments, the cells in the photovoltaic module include, but are not limited to, PERC cells (Passivated Emitter Rear Cell), IBC (Interdigitated Back Contact), TOPCon (Tunnel Oxide Passivated Contact), HIT / HJT (Heterojunction Technology) cells, solar thin-film cells, and stacked cells, or any combination thereof. Among them, solar thin-film cells include, but are not limited to, perovskite solar thin-film cells, copper indium selenide solar thin-film cells, gallium arsenide solar thin-film cells, and cadmium sulfide solar thin-film cells. Stacked cells include, but are not limited to, perovskite cells superimposed on crystalline silicon cells, perovskite cells superimposed on perovskite cells, and perovskite cells superimposed on thin-film cells.

[0043] In some embodiments, during the process of connecting the cells in series, the low-temperature welding of photovoltaic modules is to first fix the welding tape on the surface of the cell through the coating 12, and then fix the welding tape through the lamination process, so as to avoid the welding process affecting the cell.

[0044] For the abnormal detection and positioning device, the photovoltaic module may be electrically inspected first to detect abnormal battery strings in the battery strings of the photovoltaic module, and then the abnormal battery strings may be electrically inspected again to confirm abnormal battery cells 10 in the abnormal battery strings.

[0045] For the rework platform 101, the rework platform 101 can be provided with a fixing mechanism (not shown in the figure), which is used to fix the abnormal battery string, so as to control the abnormal battery cell 10 not to move during the subsequent removal of the coating 12 on the surface of the abnormal battery cell 10. The fixing mechanism can provide a pulling force to the abnormal battery cell 10 by fixing the abnormal battery string, and provide a pulling force to the coating 12 through the cooperation of the grasping mechanism 102 and the moving control mechanism 103. The pulling force provided by the fixing mechanism to the abnormal battery cell 10 is opposite to the pulling force provided to the coating 12 by the grasping mechanism 102 and the moving control mechanism 103.

[0046] In some embodiments, the fixing mechanism may be a snap-fit ​​device, by which the abnormal battery string can be fixed; in other embodiments, the fixing mechanism may be a vacuum device, by which a vacuum can be drawn on the contact surface between the battery string and the rework platform, thereby fixing the battery string to the surface of the rework platform by means of an air pressure difference.

[0047] In some embodiments, the gripping mechanism 102 may include: at least one suction cup 112, the suction cup 112 is used to absorb the coating 12, wherein there is a pressure difference between the cavity of the suction cup 112 facing the coating 12 and the outside; a heating device 122, the heating device 122 is located on the side of the suction cup 112 facing the second boundary, and is used to heat the coating 12. The suction cup 112 is used to apply a pulling force to the coating 12, and the heating device 122 is used to heat the coating 12, which can facilitate the separation of the coating 12 from the abnormal battery cell 10, and the heating device 122 is set on the side of the suction cup 112 facing the second boundary, and the coating 12 can be heated during the movement of the heating device 122 during the movement of the control mechanism 103, so that during the movement of the control mechanism 103, the coating 12 is always heated in the direction of the moving path, thereby facilitating the peeling of the coating 12 from the abnormal battery cell 10.

[0048] In some embodiments, the heating device 122 may be a lamp heating device that utilizes a lamp for heating, and the temperature of the lamp is adjustable.

[0049] In some embodiments, the length of the lamp tube in the lamp tube heating device can be equal to the width of the film 12, so that every part of the film 12 can be heated when the film 12 is heated, thereby controlling the heating of the film 12 to be relatively uniform, so that the subsequent movement control mechanism can increase the possibility of completely peeling off the film 12 during the process of peeling off the film 12.

[0050] In some embodiments, the heating device 122 can heat the temperature of the film 12 to 20°C to 100°C. It is understandable that if the heating temperature of the heating device 122 is less than 20°C, the viscosity between the film 12 and the abnormal battery cell 10 is relatively high, and it is difficult to peel off the film 12 through the gripping mechanism 102 and the mobile control mechanism 103. If the heating temperature of the heating device 122 is greater than 100°C, the heating device 122 may heat and deform the film 12, which will increase the difficulty of the gripping mechanism 102 and the mobile control mechanism 103 to peel off the film 12. Therefore, by setting the heating device 122, the temperature of the film 12 can be heated to 20°C to 100°C, which can facilitate the gripping mechanism 102 and the mobile control mechanism 103 to peel off the film 12, while increasing the integrity of the gripping mechanism 102 and the mobile control mechanism 103 to peel off the film 12.

[0051] In some embodiments, the gripping mechanism 102 may further include: a heating element (not shown in the drawings), which is fixed to the outer side of the suction cup 112 and is used to heat the suction cup 112, so that the coating 12 at the corresponding position of the suction cup 112 is easy to peel off.

[0052] In some embodiments, the number of suction cups 112 is greater than or equal to 2, and along the arrangement direction of the plurality of suction cups 112, the distance between adjacent suction cups 112 in the middle is greater than or equal to the distance between adjacent suction cups 112 at the edge. It is understandable that for the heating device 122 of the gripping mechanism 102, the heat of the heating device 122 is diffused to the surroundings, that is, for the abnormal battery cell 10, the part in the middle position of the abnormal battery cell 10 absorbs more heat, and correspondingly, the coating 12 in the middle position is easier to remove. Therefore, setting the distance between adjacent suction cups 112 in the middle to be greater than or equal to the distance between adjacent suction cups 112 at the edge can reduce the number of suction cups 112, thereby reducing the cost of photovoltaic module repair equipment.

[0053] It can be understood that the coating 12 in the middle position is easier to remove, and setting the distance between adjacent suction cups 112 in the middle to be greater than or equal to the distance between adjacent suction cups 112 at the edge can also make the force on the corresponding positions of the coating 12 and the suction cups 112 relatively uniform, thereby facilitating the peeling of the coating 12 through the suction cups 112.

[0054] In some embodiments, the moving control mechanism 103 is also used to control the grasping mechanism 102 to move downward in the vertical direction to squeeze the gas in the cavity after the grasping mechanism 102 absorbs the coating 12. It can be understood that: by squeezing the gas in the cavity by the moving control mechanism 103, the air pressure in the cavity can be controlled to form an air pressure difference with the external air pressure, thereby increasing the tightness of the grasping mechanism 102 to absorb the coating 12, preventing the coating 12 from detaching from the grasping mechanism 102, and increasing the possibility of the coating 12 peeling off.

[0055] refer to Figure 3 and Figure 5 ,in, Figure 5 A schematic diagram of the structure of a gripping mechanism provided for one embodiment of the present disclosure. In some embodiments, the gripping mechanism 102 further includes: an exhaust pipe 132, one end of which is connected to the cavity; an exhaust pump 142, which is connected to the other end of the exhaust pipe 132, and the exhaust pump 142 is used to exhaust air from the cavity during the peeling of the film 12 from the abnormal battery cell 10. The gripping mechanism 102 includes the exhaust pipe 132 and the exhaust pump 142, so that during the process of peeling the film 12, the air pressure difference between the cavity and the outside is continuously maintained, thereby ensuring that during the process of peeling the film 12, the film 12 and the suction cup 112 will not separate, thereby ensuring the reliability of the process of peeling the film 12.

[0056] Combined with reference Figure 2 and Figure 4 ,in, Figure 4A schematic diagram of the structure of another photovoltaic module repair device provided by an embodiment of the present disclosure. In some embodiments, the gripping mechanism 102 further includes: a clamping member 152, the clamping member 152 is connected to the movement control mechanism 103, and during the peeling of the film 12 from the abnormal battery cell 10, the movement control mechanism 103 controls the clamping member 152 to clamp and fix the boundary position of the film 12. By setting the gripping mechanism 102 to also include the clamping member 152, the film 12 and the gripping mechanism 102 are further fixed during the process of peeling the film 12, thereby further preventing the film 12 from falling off from the gripping mechanism 102 during the process of peeling the film 12, thereby ensuring the reliability of the process of peeling the film 12.

[0057] In some embodiments, the clamp 152 may be a robot, wherein the robot opens when the mobile control mechanism 103 moves toward the abnormal battery cell and closes when it moves away from the abnormal battery cell, thereby achieving automatic fixing and opening.

[0058] In some embodiments, the device further includes: a blowing mechanism 104, which is located on the side of the gripping mechanism 102 facing the first boundary, and the blowing port of the blowing mechanism 104 faces the junction where the covering film 12 is peeled off from the abnormal battery sheet 10, and is used to blow the covering film 12 during the process of removing the covering film 12. By setting the blowing mechanism 104, the covering film 12 can be blown during the process of peeling the covering film 12 by the gripping mechanism 101 and the moving control mechanism 102, thereby further facilitating the peeling of the covering film 12.

[0059] refer to Figure 2 In some embodiments, the angle α between the blowing direction of the air outlet and the normal direction of the surface of the abnormal battery cell 10 is 30° to 60°, for example, 40°, 45°, 53° or 58°, etc. By setting the angle α between the blowing direction of the air outlet and the normal direction of the surface of the abnormal battery cell 10 to 30° to 60°, the air outlet can be directed toward the connection surface between the covering film 12 and the battery cell, thereby facilitating the peeling of the covering film 12 from the battery cell, thereby increasing the peeling speed of the covering film 12.

[0060] refer to Figure 6 , Figure 6A schematic diagram of the structure of a coating pasting mechanism provided for one embodiment of the present disclosure. In some embodiments, the photovoltaic module repair equipment may also include: a coating pasting mechanism 105, the coating pasting mechanism 105 is used to re-paste the coating 12 on the surface of the abnormal battery cell 10 after removing the coating 12 on the surface of the abnormal battery cell 10; a heating block 106, the heating block 106 is directly opposite to the repair carrier 102, and is used to press and heat the re-pasted coating 12. The coating pasting mechanism 105 is provided to re-paste a new coating 12 on the surface of the abnormal battery cell 10, and the heating block 106 is used to preliminarily re-fix the coating 12 and the battery cell, thereby preventing the re-pasted coating 12 from detaching from the battery cell, and then the battery cell after the re-pasted coating 12 can be electrically reconnected with other battery cells.

[0061] In some embodiments, the film applying mechanism 105 may be a heating press block, and the film 12 may be fixed on the surface of the battery cell by directly pressing the heating press block on the surface of the film.

[0062] In some embodiments, after the gripping mechanism 102 and the movement control mechanism 103 remove the coating 12, the soldering ribbon 11 can also be removed, and a new soldering ribbon 11 can be reinstalled after the soldering ribbon 11 is removed, so that the abnormal battery cell 10 can be re-formed into a battery string with other battery cells.

[0063] The disclosed embodiment provides a photovoltaic module repair equipment, which tests the photovoltaic module through an abnormal detection and positioning device, selects the abnormal battery string in the photovoltaic module, and locates the abnormal battery cell 10 in the abnormal battery string, and then first adsorbs the coating 12 on the surface of the abnormal battery cell 10 through the cooperation of the grasping mechanism 102 and the moving control mechanism 103, and then provides external force through the moving control mechanism 103 to peel off the coating 12 from the battery cell, so that the battery cell can be reused and the number and scrap rate of scrapped battery cells can be reduced.

[0064] Another embodiment of the present disclosure further provides a photovoltaic module repair method, which can be implemented by the photovoltaic module repair equipment mentioned above. It should be noted that the same or corresponding parts of the aforementioned embodiments can refer to the corresponding description of the aforementioned embodiments, and will not be repeated below.

[0065] In some embodiments, a method for repairing a photovoltaic module may include: detecting the photovoltaic module, selecting abnormal cell strings in the photovoltaic module, and identifying abnormal cell sheets in the abnormal cell strings.

[0066] The repair method of the photovoltaic module may include: removing the coating on the surface of the abnormal cell.

[0067] The repair method of the photovoltaic module may include: re-applying a new film on the surface of the abnormal cell.

[0068] The disclosed embodiment can reuse the battery cells by removing the covering film on the surface of the abnormal battery cells and then re-applying a new covering film, thereby reducing the number and rate of scrapped battery cells.

[0069] In some embodiments, the photovoltaic assembly may be inspected by an abnormal detection and positioning device, and an abnormal battery string may be detected and positioned by a photoluminescence test, and abnormal battery cells in the abnormal battery string may be positioned, so as to perform subsequent repair operations.

[0070] In some embodiments, the film on the surface of the abnormal battery cell can be removed through the cooperation of a rework platform, a gripping mechanism and a motion control mechanism, wherein the rework platform is used to fix the abnormal battery cell, the gripping mechanism is used to adsorb the film on the surface of the abnormal battery cell, and the motion control mechanism is used to control the movement of the gripping mechanism, thereby controlling the gripping mechanism to be fixed to the film, and removing the film through the gripping mechanism. The film is removed by first controlling the gripping mechanism to be fixed to the film, and then driving the gripping mechanism to move through the motion control mechanism.

[0071] In some embodiments, the gripping mechanism may be a suction cup, and the movement control mechanism may first control the suction cup to move toward the direction of the abnormal battery cell, and remove the air between the suction cup and the coating by squeezing, so that the air pressure between the suction cup and the abnormal battery cell forms a pressure difference with the external air pressure, thereby fixing the gripping mechanism and the coating.

[0072] After being fixed between the suction cup and the covering film, the suction cup is moved away from the abnormal battery cell by a moving control mechanism, and the covering film is peeled off from the abnormal battery cell by controlling the suction cup to move along the first boundary of the abnormal battery cell toward the second boundary.

[0073] In some embodiments, during the process of peeling off the film, the film is also heated to facilitate the peeling off of the film.

[0074] In some embodiments, before re-pasting a new film on the surface of the abnormal battery cell, the process may also include: first removing the solder strip on the surface of the abnormal battery cell. By removing the solder strip on the surface of the abnormal battery cell, the abnormal battery cell can be separated from the abnormal battery string. On the one hand, it can be convenient to determine whether the abnormal battery cell itself is abnormal. On the other hand, it can be convenient to install a new battery cell on the abnormal battery string.

[0075] In some embodiments, after removing the solder strips on the surfaces of abnormal battery cells, new solder strips may be installed, thereby further reducing the number and rate of scrapped battery cells.

[0076] Those skilled in the art can understand that the above-mentioned embodiments are specific examples for implementing the present disclosure, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the embodiments of the present disclosure. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the embodiments of the present disclosure, so the protection scope of the embodiments of the present disclosure shall be based on the scope defined in the claims.

Claims

1. A photovoltaic module repair device, wherein the photovoltaic module comprises a plurality of battery strings, the battery strings comprise a plurality of connected battery cells, adjacent battery cells are connected via welding strips, and a coating is provided on the surface of the battery cell, the coating is used to fix the welding strip on the surface of the battery cell, characterized in that: include: An abnormality detection and positioning device, the abnormality detection and positioning device is used to detect the photovoltaic assembly, select abnormal battery strings in the photovoltaic assembly, and confirm abnormal battery cells in the abnormal battery strings; A repair platform, the repair platform is used to carry the abnormal battery string; A gripping mechanism, at least used for adsorbing an area of ​​the coating on the surface of the abnormal battery cell adjacent to the first boundary; A moving control mechanism, which is connected to the gripping mechanism and is used to control the gripping mechanism to move in a vertical direction, wherein after the gripping mechanism absorbs the coating, the moving control mechanism controls the gripping mechanism to move upward in the vertical direction to a preset height to apply a pulling force to the coating, and after the gripping mechanism moves to the preset height, the moving control mechanism is also used to control the gripping mechanism to move along the first boundary toward the second boundary of the abnormal battery cell, so that the gripping mechanism drives the coating to be peeled off from the abnormal battery cell, and the second boundary is opposite to the first boundary.

2. The photovoltaic module repair equipment according to claim 1, characterized in that: The grabbing mechanism comprises: At least one suction cup, the suction cup is used to absorb the coating, wherein there is a pressure difference between the cavity of the suction cup facing the coating and the outside; A heating device is located on the side of the suction cup facing the second boundary and is used for heating the coating.

3. The photovoltaic module repair equipment according to claim 2, characterized in that: The number of the suction cups is greater than or equal to 2, and along the arrangement direction of the plurality of suction cups, the distance between adjacent suction cups located in the middle is greater than or equal to the distance between adjacent suction cups located at the edge.

4. The photovoltaic module repair equipment according to claim 2, characterized in that: The movement control mechanism is also used to control the grasping mechanism to move downward in the vertical direction after the grasping mechanism absorbs the coating film, so as to squeeze the gas in the cavity.

5. The photovoltaic module repair equipment according to claim 2, characterized in that: The gripping mechanism also includes: An air extraction pipe, one end of which is connected to the cavity; A vacuum pump is connected to the other end of the vacuum pipe, and is used to evacuate the cavity during the period when the film is peeled off from the abnormal battery cell.

6. The photovoltaic module repair equipment according to claim 2, characterized in that: The gripping mechanism also includes: A heating element is fixed to the outer side of the suction cup and is used to heat the suction cup.

7. The photovoltaic module repair equipment according to claim 1, characterized in that: Also includes: A blowing mechanism is located on the side of the gripping mechanism facing the first boundary, and the blowing port of the blowing mechanism faces the junction where the covering film is peeled off from the abnormal battery sheet, and is used to blow the covering film during the process of removing the covering film.

8. The photovoltaic module repair equipment according to claim 7, characterized in that: The angle between the blowing direction of the blowing port and the normal direction of the surface of the abnormal battery cell is 30° to 60°.

9. The photovoltaic module repair equipment according to claim 1, characterized in that: Also includes: A film pasting mechanism, wherein the film pasting mechanism is used to re-paste the film on the surface of the abnormal battery cell after removing the film on the surface of the abnormal battery cell; A heating pressing block is directly opposite to the rework bearing platform and is used for pressing and heating the re-applied coating.

10. The photovoltaic module repair equipment according to claim 1, characterized in that: The gripping mechanism also includes: A clamping member is connected to the movement control mechanism, and during the period when the covering film is peeled off from the abnormal battery sheet, the movement control mechanism controls the clamping member to clamp and fix the boundary position of the covering film.

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