Device, method and photovoltaic module for manufacturing a reflective layer of a photovoltaic module

Abstract

The present invention discloses a device, method and photovoltaic module for manufacturing a reflective layer of a photovoltaic module, and relates to the field of photovoltaic technology, in order to solve the problem that it is inconvenient and has low precision when artificially coating reflective materials or artificially pasting reflective strips to form a reflective layer. The device for manufacturing a reflective layer of a photovoltaic module comprises an image acquisition device, a control device, an execution device and a reflective layer forming device, the image acquisition device and the execution device are both connected to the control device, the control device is provided with an image processing module, and the execution device drives the reflective layer forming device to move to form a reflective layer. The method for manufacturing a reflective layer of a photovoltaic module comprises the device for manufacturing a reflective layer of a photovoltaic module as mentioned in the above technical solution. The photovoltaic module comprises a reflective layer, and the reflective layer is made by the device for manufacturing a reflective layer of a photovoltaic module as mentioned in the above technical solution. The device for manufacturing a reflective layer of a photovoltaic module provided by the present invention is used for manufacturing a reflective layer.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaics, and in particular to a device and method for manufacturing a light reflecting layer of a photovoltaic component and a photovoltaic component. Background Art

[0002] A photovoltaic module is a device that can convert light energy into electrical energy. It is usually made of front glass, film, cell layer, film and backplane laminated package. The cell layer refers to the cell layer formed by connecting cell strings in series or in parallel. The cell string is made of multiple cells connected in series. For double-glass modules, the backplane on it is the back glass. Usually, in order to ensure the reliability of photovoltaic modules, a gap is left between two adjacent cells in the cell layer. However, when in use, sunlight will pass through the gap to illuminate the back glass and then pass through the back glass to emit, resulting in a decrease in the sunlight utilization rate of the photovoltaic module.

[0003] In order to improve the light utilization rate of photovoltaic modules, a commonly used method is to coat reflective materials or paste reflective strips on the back glass at positions corresponding to the gaps between adjacent cells in the cell layer to form a reflective layer, so that when sunlight passes through the gaps and shines on the reflective layer of the back glass, it can be reflected by the reflective layer to the cells, thereby improving the light utilization rate of the photovoltaic modules. However, the current method of coating reflective materials and pasting reflective strips is manual coating and manual pasting, which makes the molding of the reflective layer inconvenient and has low precision. Summary of the invention

[0004] The object of the present invention is to provide a device, a method and a photovoltaic module for manufacturing a reflective layer of a photovoltaic module, so as to improve the convenience and manufacturing accuracy of the reflective layer.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A device for manufacturing a reflective layer of a photovoltaic module comprises an image acquisition device, a control device, an execution device and a reflective layer forming device, wherein the image acquisition device and the execution device are both connected to the control device, the reflective layer forming device is arranged on the execution device, and the execution device drives the reflective layer forming device to operate; the image acquisition device is used to acquire back image information of a photovoltaic module processed by a lamination process; the control device is provided with an image processing module, and the image processing module is used to process the back image information, and obtain the orthographic projection position information of the cell sheets of the photovoltaic module on the outer surface of the back glass of the photovoltaic module and the orthographic projection position information of the gaps between adjacent cell sheets on the outer surface of the back glass; the control device controls the execution device to drive the reflective layer forming device to operate according to the orthographic projection position information, so as to form a reflective layer corresponding to the gaps between adjacent cell sheets on the outer surface of the back glass.

[0007] Compared with the prior art, in the device for manufacturing the reflective layer of a photovoltaic module provided by the present invention, an image acquisition device acquires a back image of the photovoltaic module, an image processing module identifies the back image to obtain the orthographic projection position information of the cell on the outer surface of the back glass of the photovoltaic module and the orthographic projection position information of the gap between adjacent cells on the outer surface of the back glass, and a control device controls the execution device to drive the reflective layer forming device to operate according to the orthographic projection position information to form the reflective layer, so that when sunlight passes through the gap in the cell layer and reaches the back glass, it can be reflected by the reflective layer to the cell for utilization, thereby improving the light utilization rate of the photovoltaic module; when the reflective layer is manufactured by the above-mentioned device, the reflective layer can be manufactured quickly and accurately by the image acquisition device, the image processing module, the control device and the execution device, thereby improving the convenience and manufacturing accuracy of the reflective layer, and at the same time making the manufactured reflective layer have higher position accuracy and size accuracy and higher matching degree with the gap between adjacent cells in the cell layer, and the above-mentioned image acquisition device and image processing module are both structures known in the prior art.

[0008] Compared with the prior art, in which the reflective layer is manufactured on the inner surface of the back glass before the lamination of the photovoltaic module, in order to avoid the offset of the reflective layer caused by factors such as lamination offset and installation error, the reflective layer of the present application is located on the outer surface of the back glass and is formed after the lamination process is completed. Since the structure of the photovoltaic module is stable after lamination, the reflective layer can be manufactured to avoid the offset of the reflective layer caused by factors such as lamination offset and installation error, so that the size of the reflective layer can be more precise to reduce production costs, and at the same time, it is avoided that when the size of the reflective layer is large, excessive shielding of the solar cells will be avoided to affect the power of the back of the photovoltaic module.

[0009] Optionally, in the above-mentioned equipment for manufacturing the reflective layer of photovoltaic modules, the reflective layer forming device is a reflective sticker device, and the control device controls the execution device to drive the reflective sticker device to operate according to the positive projection position information, so as to paste the reflective sticker corresponding to the gap between adjacent cells on the outer surface of the back glass to form the reflective layer; or, the reflective layer forming device is a spraying device, and the control device controls the execution device to drive the spraying device to operate according to the positive projection position information, so as to spray the reflective material corresponding to the gap between adjacent cells on the outer surface of the back glass to form the reflective layer. With such an arrangement, the execution device can form the reflective layer by pasting the reflective sticker or spraying the reflective material.

[0010] Optionally, in the above-mentioned device for manufacturing the reflective layer of the photovoltaic module, the image acquisition device includes a camera and a lighting module, the camera is used to acquire the back image information of the photovoltaic module after the lamination process, and the lighting module is used to provide fill light when the camera is shooting. Such an arrangement facilitates the acquisition of a clear back image of the photovoltaic module.

[0011] Optionally, in the above-mentioned device for manufacturing the reflective layer of the photovoltaic module, a display is further included, and the control device further includes an output module, the control device is connected to the execution device through the output module, and the back image information and the positive projection position information are transmitted to the display through the output module. In this configuration, the control device outputs the control information to the execution device through the output module, thereby controlling the execution device to drive the reflective layer forming device to move, and at the same time, the back image of the photovoltaic module and the positive projection position information of the gap between the battery cell and the connected battery cell on the back glass are displayed through the display, so that the staff can observe the back image of the photovoltaic module more intuitively.

[0012] Optionally, in the above-mentioned device for manufacturing the reflective layer of a photovoltaic module, the image processing module is an artificial intelligence image processing module, and the control device further includes a power module and a storage module. In this way, the control device can be powered by the power module, and the data information in the control device can be stored by the storage module.

[0013] Optionally, the above-mentioned device for manufacturing the reflective layer of the photovoltaic module further includes a positioning fixture, which is used to clamp the photovoltaic module after the lamination process. In this way, the photovoltaic module is clamped and positioned by the positioning fixture, which increases the stability of the photovoltaic module.

[0014] The present invention also provides a method for manufacturing a photovoltaic module reflective layer, using the device for manufacturing a photovoltaic module reflective layer as described in the above scheme, comprising:

[0015] The image acquisition device is used to collect the back image information of the photovoltaic module that has been processed by the lamination process;

[0016] Processing the back image information through the image processing module of the control device to obtain the orthographic projection position information of the cells of the photovoltaic module on the outer surface of the back glass of the photovoltaic module and the orthographic projection position information of the gaps between adjacent cells on the outer surface of the back glass;

[0017] The control device controls the execution device according to the forward projection position information to drive the reflective layer forming device to operate, so as to form a reflective layer corresponding to the gap between adjacent battery cells on the outer surface of the back glass.

[0018] Compared with the prior art, the beneficial effects of the method for manufacturing a photovoltaic module reflective layer provided by the present invention are the same as the beneficial effects of the device for manufacturing a photovoltaic module reflective layer according to the above technical solution, which will not be described in detail here.

[0019] Optionally, in the above-mentioned method for manufacturing a reflective layer of a photovoltaic module, the control device controls the execution device to drive the reflective layer forming device to operate according to the front projection position information, so as to form a reflective layer corresponding to the gap between adjacent cells on the outer surface of the back glass. Specifically, the reflective layer forming device is a reflective strip device, and the control device controls the execution device to drive the reflective strip device to operate according to the front projection position information, so as to paste reflective strips corresponding to the gap between adjacent cells on the outer surface of the back glass to form a reflective layer; or, the reflective layer forming device is a spraying device, and the control device controls the execution device to drive the spraying device to operate according to the front projection position information, so as to spray reflective materials corresponding to the gap between adjacent cells on the outer surface of the back glass to form a reflective layer. Such an arrangement facilitates the operation of the reflective layer forming device to form a reflective layer.

[0020] Optionally, in the above-mentioned method for manufacturing the reflective layer of the photovoltaic module, the image processing module processes the back image information to obtain the orthographic projection position information of the photovoltaic module's cells on the back glass outer surface of the photovoltaic module and the orthographic projection position information of the gaps between adjacent cells on the back glass outer surface. Specifically, the back of the photovoltaic module is a rectangle, and a rectangular coordinate system is established with a vertex of the back of the photovoltaic module as the coordinate origin, the long side of the back of the photovoltaic module as the x-axis, and the short side of the back of the photovoltaic module as the y-axis; the back image information is analyzed to determine the coordinate information of the orthographic projection position of each cell on the back glass outer surface and the coordinate information of the orthographic projection position of the gaps between adjacent cells on the back glass outer surface in the rectangular coordinate system; according to the coordinate information, the pasting position of the reflective sticker or the spraying position of the spraying device is obtained. Such a setting facilitates the precise control of the pasting position of the reflective sticker and the spraying position of the spraying device, thereby improving the manufacturing accuracy of the reflective layer.

[0021] The present invention also provides a photovoltaic module, comprising a cell layer, a back glass and a reflective layer arranged on the outer surface of the back glass, wherein the reflective layer is made by the method for manufacturing the reflective layer of a photovoltaic module described in the above scheme.

[0022] Compared with the prior art, the beneficial effects of the photovoltaic module provided by the present invention are the same as the beneficial effects of the method for manufacturing the reflective layer of the photovoltaic module described in the above technical solution, and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0024] Figure 1 is a schematic diagram of a photovoltaic module in the prior art;

[0025] Figure 2 is a schematic diagram of a photovoltaic module in an embodiment of the present invention;

[0026] Figure 3 A schematic diagram of a cell layer and a reflective layer in an embodiment of the present invention;

[0027] Figure 4 Schematic diagram of the equipment for manufacturing the reflective layer of the photovoltaic module in the embodiment of the present invention Figure 1 ;

[0028] Figure 5 Schematic diagram of the equipment for manufacturing the reflective layer of the photovoltaic module in the embodiment of the present invention Figure 2 ;

[0029] Figure 6 This is a schematic diagram of placing photovoltaic modules on a conveyor belt to make a reflective layer in an embodiment of the present invention.

[0030] Reference numerals:

[0031] 1-Front glass, 2-Adhesive film, 3-Battery layer, 4-Back glass, 5-Reflective layer, 6-Camera, 7-Positioning fixture, 8-Conveyor belt. DETAILED DESCRIPTION

[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0033] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. The meaning of "several" is one or more, unless otherwise clearly and specifically defined.

[0035] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "front", "back", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] See also Figure 1 Usually, based on the consideration of the reliability of photovoltaic modules, there will be a gap of about 2 mm between adjacent cells in the cell layer 3 inside the photovoltaic module. When the photovoltaic module is in use, sunlight will pass through the gap and shine on the back glass 4, resulting in a decrease in the light utilization rate of the photovoltaic module. In order to improve the light utilization rate of the photovoltaic module, a commonly used method is to print a white glaze layer or attach a reflective strip on the inner surface of the cell layer 3 on the back glass 4 at a position corresponding to the gap between adjacent cells, so that when sunlight shines on the white glaze layer or the reflective strip, it can be reflected to the cell surface, thereby improving the light utilization rate and power of the photovoltaic module. However, when the reflective layer 5 is formed on the inner surface of the back glass 4, it is necessary to form the reflective layer 5 before the photovoltaic module is laminarized. When the photovoltaic module is laminarized or installed, the back glass 4 and the cell layer 3 may be offset, resulting in the reflective layer 5 not corresponding to the gap, thereby causing the sunlight to be unable to irradiate the reflective layer 5 and reflect onto the cell. Therefore, in order to ensure that the white glaze layer or the reflective strip can completely cover the gap between the cells, so that when the back glass 4 and the cell layer 3 are relatively offset, the reflective layer 5 can still reflect the sunlight passing through the gap onto the cell, the width of the white glaze layer and the reflective strip is usually more than twice the width of the gap, generally 5.5mm to 6.5mm. However, when this structure is adopted, the width of the reflective layer 5 is relatively large, and the back of the cell is easily over-blocked, which seriously affects the power and bifaciality of the back of the photovoltaic module.

[0038] See also Figures 2 to 5The device for manufacturing the reflective layer of a photovoltaic module provided by an embodiment of the present invention comprises an image acquisition device, a control device, an execution device and a reflective layer forming device, wherein the image acquisition device and the execution device are both connected to the control device, the reflective layer forming device is arranged on the execution device, and the execution device drives the reflective layer forming device to operate; the image acquisition device is used to acquire the back image information of the photovoltaic module processed by the lamination process; the control device is provided with an image processing module, and the image processing module is used to process the back image information, and obtain the orthographic projection position information of the cell of the photovoltaic module on the outer surface of the back glass 4 of the photovoltaic module and the orthographic projection position information of the gap between adjacent cells on the outer surface of the back glass 4; the control device controls the execution device to drive the reflective layer forming device to operate according to the orthographic projection position information, so as to form a reflective layer 5 corresponding to the gap between adjacent cells on the outer surface of the back glass 4.

[0039] It should be noted that the photovoltaic module in this embodiment is mainly formed by laminating the front glass 1, the adhesive film 2, the cell layer 3, the adhesive film 2 and the back glass 4. The cell layer 3 is composed of multiple cells. The gap between the adjacent cells is the gap between the adjacent cells in the cell layer 3. The above-mentioned positive projection position information includes the projection position information of the cell on the outer surface of the back glass 4 and the projection position information of the gap between the adjacent cells on the outer surface of the back glass 4 in the direction perpendicular to the outer surface of the back glass 4; the outer surface of the back glass 4 refers to the surface on the back glass 4 close to the outer side of the photovoltaic module; the preferred control device in this embodiment is a computer; the above-mentioned execution device is a motion control mechanism capable of realizing motion control, and the above-mentioned reflective layer forming device refers to a device for forming the reflective layer 5.

[0040] During specific implementation: first, the image acquisition device is used to acquire the back image of the photovoltaic module. The image acquisition device transmits the acquired back image to the image processing module of the control device. The image processing module obtains the orthographic projection of the battery cell and the orthographic projection of the gap between adjacent battery cells in the back image by identifying and processing the back image. The control device determines the theoretical setting area of ​​the reflective layer 5 according to the position and size of the orthographic projection, and then controls the execution device to drive the reflective layer forming device to operate, so as to form the reflective layer 5 in the theoretical setting area.

[0041] It can be seen from the structure and specific implementation process of the above-mentioned equipment for manufacturing the reflective layer of the photovoltaic module that the image acquisition device is used to acquire the back image of the photovoltaic module, the image processing module is used to identify the back image to obtain the orthographic projection position information of the cell on the outer surface of the back glass 4 of the photovoltaic module and the orthographic projection position information of the gap between adjacent cells on the outer surface of the back glass 4, and the control device is used to control the execution device to drive the reflective layer forming device to operate according to the orthographic projection position information to form the reflective layer 5, so that when the sunlight passes through the gap in the cell layer 3 and reaches the back glass 4, it can be reflected by the reflective layer 5 to the cell for utilization, thereby improving the light utilization rate of the photovoltaic module; when the above-mentioned equipment is used to manufacture the reflective layer 5, the reflective layer 5 can be manufactured quickly and accurately through the image acquisition device, the image processing module, the control device and the execution device, thereby improving the convenience and manufacturing accuracy of the reflective layer 5, and at the same time making the manufactured reflective layer 5 have higher position accuracy and size accuracy and higher matching degree with the gap between adjacent cells in the cell layer 3, and the above-mentioned image acquisition device and image processing module are both structures known in the prior art.

[0042] Compared with the prior art, in which the reflective layer 5 is manufactured on the inner surface of the back glass 4 before the photovoltaic module is laminarized, in order to increase the size of the reflective layer 5 to avoid the offset of the reflective layer 5 due to factors such as lamination offset and installation error, the reflective layer 5 of this embodiment is located on the outer surface of the back glass 4 and is formed after the lamination process is completed. Since the structure of the photovoltaic module is stable after lamination, the offset of the reflective layer 5 caused by factors such as lamination offset and installation error can be avoided during the manufacture of the reflective layer 5, so that the size of the reflective layer 5 can be more precise to reduce the production cost, and at the same time, the reflective layer 5 can be prevented from excessively blocking the solar cells when the size is large, thereby affecting the power of the back of the photovoltaic module.

[0043] As a possible implementation method, the above-mentioned reflective layer forming device is a reflective strip device. The control device controls the execution device to drive the reflective strip device to move according to the positive projection position information, so as to stick the reflective strip corresponding to the gap between adjacent battery cells on the outer surface of the back glass 4 to form a reflective layer 5; the reflective strip device refers to a device for sticking reflective strips. The execution device can stick the reflective strips to the back glass 4 to form a reflective layer 5 by driving the reflective strip device to move. When the reflective layer 5 is manufactured by the above-mentioned equipment, the size of the reflective strip can be the same as or similar to the size of the gap between adjacent battery cells. For example, when the width of the gap between adjacent battery cells is 2mm, the width of the reflective strip can be 1.5mm~2.5mm, preferably 2mm. At this time, the reflective strip can play a reflective role corresponding to the gap between adjacent battery cells. At the same time, due to its relatively small size, the production cost of the reflective layer 5 can be reduced and the back of the battery cell can be avoided from being excessively blocked.

[0044] As another possible implementation, the reflective layer forming device is a spraying device. The control device controls the execution device to drive the spraying device to move according to the forward projection position information, so as to spray the reflective material corresponding to the gap between adjacent cells on the outer surface of the back glass 4 to form the reflective layer 5. The reflective material is a known material that can reflect sunlight, including but not limited to white glaze, etc. The reflective material sprayed by the spraying device can be quickly formed by drying. The execution device can spray the reflective material on the back glass 4 to form the reflective layer 5 by driving the spraying device to move. When the reflective layer 5 is manufactured by the above-mentioned equipment, the size of the reflective layer 5 formed by the reflective material can be the same as or similar to the size of the gap between adjacent cells. For example, when the width of the gap between adjacent cells is 2 mm, the width of the sprayed reflective material can be 2 mm. At this time, the reflective layer 5 formed by the reflective material can play a reflective role corresponding to the gap between adjacent cells. At the same time, due to its relatively small size, the production cost of the reflective layer 5 can be reduced and the back of the cell can be prevented from being excessively blocked.

[0045] As a possible implementation method, the image acquisition device in this embodiment includes a camera 6 and a lighting module. The camera 6 is used to collect the back image information of the photovoltaic module that has been processed by the lamination process, and transmit the back image information to the image processing module. The lighting module is used to fill in the light when the camera 6 is shooting. By cooperating with the camera 6 and the lighting module to collect the back image information of the photovoltaic module, the clarity of the back image of the photovoltaic module can be improved, which makes it easier for the image processing module to identify the back image of the photovoltaic module and obtain the position and size of the gap between adjacent battery cells. The camera 6 in this embodiment includes but is not limited to still cameras, video cameras, and other photographic equipment.

[0046] In order to enable the staff to more intuitively observe the image of the gap between adjacent cells on the back glass 4, the preferred device for manufacturing photovoltaic modules in this embodiment also includes a display, and the control device also includes an output module. The control device is connected to the execution device through the output module, and the back image information and the positive projection position information are transmitted to the display through the output module. With this structure, the control device outputs the control information to the execution device through the output module, so as to control the execution device to drive the reflective sticker device or the spraying device to move to the positive projection position of the gap between adjacent cells on the outer surface of the back glass 4, and control the reflective sticker device to paste the reflective sticker to the positive projection position, or control the spraying device to spray the reflective material at the positive projection position, so as to form a reflective layer 5. In addition, the back image of the photovoltaic module and the positive projection position information of the gap between the cell and the connected cell on the back glass 4 can be displayed by the display, so that the staff can more intuitively observe the back image of the photovoltaic module.

[0047] As a possible implementation method, the image processing module in this embodiment is an artificial intelligence image processing module, and the control device also includes a power module and a storage module. The artificial intelligence image processing module is a structure known in the prior art, such as a picture processing module in an AI information recognition system disclosed in the Chinese invention patent with publication number CN113408360A. The image processing module in this embodiment can identify the positive projection position information of the battery cell and the positive projection position information of the gap between connected battery cells in the back image of the photovoltaic module by pixel comparison and feature extraction; the power module in this embodiment is used to be connected to an external power supply to power the control device, and the storage module can store data information in the control device. The data information stored in the storage module includes but is not limited to image information captured by the camera 6, data information processed by the image processing module, and control information of the control device controlling the movement of the execution device.

[0048] See also Figure 6 The equipment for manufacturing the reflective layer of the photovoltaic module also includes a positioning fixture 7, which is used to clamp the photovoltaic module that has been processed by the lamination process. The equipment for manufacturing the reflective layer of the photovoltaic module also includes a conveyor belt 8. When the reflective layer 5 is manufactured, the laminated photovoltaic module is first placed on the conveyor belt 8, and the photovoltaic module is clamped and positioned by the positioning fixture 7. Then, the back image of the photovoltaic module is captured by the image acquisition device. When the photovoltaic module is fixed by the positioning fixture 7, the stability of the photovoltaic module can be increased. The positioning fixture 7 can be connected to the control device for communication, and the positioning fixture 7 is controlled by the control device to clamp the photovoltaic module.

[0049] In addition, the execution device in this embodiment is preferably a robotic arm, which can conveniently and quickly drive the reflective sticker to move and stick it to the positive projection position of the gap on the back glass 4 by controlling the movement of the robotic arm, or drive the spraying device to move to the positive projection position of the gap on the back glass 4 to spray reflective material to form a reflective layer 5.

[0050] The embodiment of the present invention further provides a method for manufacturing a photovoltaic module reflective layer, using the device for manufacturing a photovoltaic module reflective layer as described above, comprising:

[0051] The image acquisition device is used to collect the back image information of the photovoltaic module that has been processed by the lamination process;

[0052] The image processing module of the control device processes the back image information to obtain the orthographic projection position information of the cells of the photovoltaic module on the outer surface of the back glass 4 of the photovoltaic module and the orthographic projection position information of the gaps between adjacent cells on the outer surface of the back glass 4;

[0053] The control device controls the execution device according to the forward projection position information to drive the reflective layer forming device to operate, so as to form a reflective layer 5 corresponding to the gap between adjacent battery cells on the outer surface of the back glass 4.

[0054] See also Figure 6 After the photovoltaic module has been processed by the lamination process, the photovoltaic module can be placed on the conveyor belt 8 first, and then the photovoltaic module can be clamped by the positioning fixture 7 to fix the photovoltaic module on the conveyor belt 8; therefore, the manufacturing process of the photovoltaic module includes using a laser cutting method to obtain battery cells - welding the battery cells to obtain battery strings - arranging the battery cells to obtain battery cell layers 3 - stacking the front glass 1, the adhesive film 2, the battery cell layer 3, the adhesive film 2 and the back glass 4 and laminating them to obtain the photovoltaic module processed by the lamination process - using the above-mentioned method for manufacturing the reflective layer of the photovoltaic module to make a reflective layer 5 on the back glass 4 of the photovoltaic module - after the reflective layer 5 is made, the photovoltaic module is framed and tested to obtain a finished photovoltaic module.

[0055] Compared with the prior art, the beneficial effects of the method for manufacturing a photovoltaic module reflective layer provided by the embodiment of the present invention are the same as the beneficial effects of the device for manufacturing a photovoltaic module reflective layer provided by the above embodiment, and are not described in detail here.

[0056] As a possible implementation method, in this embodiment, the control device controls the execution device to drive the reflective layer forming device to operate according to the front projection position information, so as to form a reflective layer 5 corresponding to the gap between adjacent battery cells on the outer surface of the back glass 4. Specifically, the reflective layer forming device is a reflective strip device, and the control device controls the execution device to drive the reflective strip device to operate according to the front projection position information, so as to paste reflective strips corresponding to the gap between adjacent battery cells on the outer surface of the back glass 4 to form the reflective layer 5; or, the reflective layer forming device is a spraying device, and the control device controls the execution device to drive the spraying device to operate according to the front projection position information, so as to spray reflective material corresponding to the gap between adjacent battery cells on the outer surface of the back glass 4 to form the reflective layer 5. With this method, it is convenient for the control device to control the execution device to drive the reflective layer forming device to operate to form the reflective layer 5.

[0057] In an optional manner, the image processing module processes the back image information to obtain the orthographic projection position information of the photovoltaic module's cells on the outer surface of the back glass 4 of the photovoltaic module and the orthographic projection position information of the gaps between adjacent cells on the outer surface of the back glass 4. Specifically, the back of the photovoltaic module is a rectangle, and a rectangular coordinate system is established with a vertex on the back of the photovoltaic module as the coordinate origin, the long side of the back of the photovoltaic module as the x-axis, and the short side of the back of the photovoltaic module as the y-axis; the back image information is analyzed to determine the coordinate information of the orthographic projection position of each cell on the outer surface of the back glass 4 and the coordinate information of the orthographic projection position of the gaps between adjacent cells on the outer surface of the back glass 4 in the rectangular coordinate system; based on the coordinate information, the pasting position of the reflective strip or the spraying position of the spraying device is obtained. By adopting this method, the coordinate information of the positive projection of the gap between adjacent cells in the back image of the photovoltaic module can be accurately located by coordinate positioning, so as to accurately locate the theoretical setting area of ​​the reflective layer 5, improve the manufacturing accuracy of the reflective layer 5, and make the photovoltaic module have good light utilization and power. In this embodiment, the pasting position of the reflective strip includes the optimal pasting position, and the spraying position of the spraying device includes the optimal spraying position. The optimal pasting position of the reflective strip and the optimal spraying position of the spraying device are preferably the center position of the theoretical setting area of ​​the reflective layer 5. When the width of the reflective strip and the width of the reflective layer 5 formed by spraying the reflective material by the spraying device are consistent with the width of the gap between adjacent cells, the reflective strip and the reflective material just completely cover the theoretical setting area of ​​the reflective layer 5.

[0058] See also Figure 2 and Figure 3 The embodiment of the present invention further provides a photovoltaic module, comprising a cell layer 3, a back glass 4 and a reflective layer 5 arranged on the outer surface of the back glass 4, wherein the reflective layer 5 is made by the device for manufacturing the reflective layer of the photovoltaic module described in the above embodiment. When the reflective layer 5 is made by the device for manufacturing the reflective layer of the photovoltaic module, the production efficiency of the photovoltaic module can be improved. At the same time, the reflective layer 5 is formed on the outer surface of the back glass 4 of the laminated photovoltaic module, and there is no need to consider the relative offset between the back glass 4 and the cell layer 3 caused by lamination, so that the dimensional accuracy of the reflective layer 5 can be higher and the width can be smaller, thereby preventing the reflective layer 5 from increasing the cost when the size is larger and excessively shielding the cell to affect the power of the back of the photovoltaic module.

[0059] Compared with the prior art, the beneficial effects of the photovoltaic module provided by the embodiment of the present invention are the same as the beneficial effects of the method for manufacturing the reflective layer of the photovoltaic module provided by the above embodiment, and are not described in detail here.

[0060] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0061] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A device for manufacturing a reflective layer of a photovoltaic module, characterized in that: It includes an image acquisition device, a control device, an execution device and a reflective layer forming device, wherein the image acquisition device and the execution device are both connected to the control device, the reflective layer forming device is arranged on the execution device, and the execution device drives the reflective layer forming device to move; The image acquisition device is used to acquire image information of the back side of the photovoltaic module that has been processed by the lamination process; The control device is provided with an image processing module, and the image processing module is used to process the back image information to obtain the orthographic projection position information of the cells of the photovoltaic module on the outer surface of the back glass of the photovoltaic module and the orthographic projection position information of the gaps between adjacent cells on the outer surface of the back glass. The control device controls the execution device to drive the reflective layer forming device to operate according to the orthographic projection position information, so as to form a reflective layer on the outer surface of the back glass corresponding to the gaps between adjacent cells.

2. The device for manufacturing a reflective layer of a photovoltaic module according to claim 1, characterized in that: The reflective layer forming device is a reflective sticker device, and the control device controls the execution device to drive the reflective sticker device to operate according to the front projection position information, so as to stick reflective stickers corresponding to the gaps between adjacent battery cells on the outer surface of the back glass to form the reflective layer; or, the reflective layer forming device is a spraying device, and the control device controls the execution device to drive the spraying device to operate according to the front projection position information, so as to spray reflective materials corresponding to the gaps between adjacent battery cells on the outer surface of the back glass to form the reflective layer.

3. The device for manufacturing a reflective layer of a photovoltaic module according to claim 1, characterized in that: The image acquisition device comprises a camera and an illumination module, wherein the camera is used to acquire image information of the back side of the photovoltaic module processed by the lamination process, and the illumination module is used to provide fill light when the camera is shooting.

4. The device for manufacturing a reflective layer of a photovoltaic module according to claim 1, characterized in that: It also includes a display, and the control device also includes an output module. The control device is communicatively connected with the execution device through the output module, and the back image information and the front projection position information are transmitted to the display through the output module.

5. The device for manufacturing a photovoltaic module reflective layer according to any one of claims 1 to 4, characterized in that: The image processing module is an artificial intelligence image processing module, and the control device also includes a power module and a storage module.

6. The device for manufacturing a photovoltaic module reflective layer according to any one of claims 1 to 4, characterized in that: It also includes a positioning fixture, which is used to clamp the photovoltaic component that has been processed by the lamination process.

7. A method for manufacturing a reflective layer of a photovoltaic module, characterized in that: The device for manufacturing a photovoltaic module reflective layer according to any one of claims 1 to 6 comprises: The image acquisition device is used to collect the back image information of the photovoltaic module that has been processed by the lamination process; Processing the back image information through an image processing module of a control device to obtain orthographic projection position information of the cells of the photovoltaic module on the outer surface of the back glass of the photovoltaic module and orthographic projection position information of the gaps between adjacent cells on the outer surface of the back glass; The control device controls the execution device according to the forward projection position information to drive the reflective layer forming device to operate, so as to form a reflective layer corresponding to the gap between adjacent battery cells on the outer surface of the rear glass.

8. The method for manufacturing a photovoltaic module reflective layer according to claim 7, characterized in that: The control device controls the execution device to drive the reflective layer forming device to move according to the forward projection position information, so as to form a reflective layer corresponding to the gap between adjacent cells on the outer surface of the rear glass, specifically: The reflective layer forming device is a reflective sticker device, and the control device controls the execution device to drive the reflective sticker device to operate according to the front projection position information, so as to stick reflective stickers corresponding to the gaps between adjacent battery cells on the outer surface of the back glass to form the reflective layer; or, the reflective layer forming device is a spraying device, and the control device controls the execution device to drive the spraying device to operate according to the front projection position information, so as to spray reflective materials corresponding to the gaps between adjacent battery cells on the outer surface of the back glass to form the reflective layer.

9. The method for manufacturing a photovoltaic module reflective layer according to claim 8, characterized in that: The image processing module processes the back image information to obtain the orthographic projection position information of the cell of the photovoltaic module on the outer surface of the back glass of the photovoltaic module and the orthographic projection position information of the gap between adjacent cells on the outer surface of the back glass, specifically: The back of the photovoltaic module is a rectangle, and a rectangular coordinate system is established with a vertex of the back of the photovoltaic module as the coordinate origin, the long side of the back of the photovoltaic module as the x-axis, and the short side of the back of the photovoltaic module as the y-axis; Analyze the back image information to determine the coordinate information of the orthographic projection position of each cell on the outer surface of the back glass and the coordinate information of the orthographic projection position of the gap between adjacent cells on the outer surface of the back glass in the rectangular coordinate system; According to the coordinate information, the sticking position of the reflective sticker or the spraying position of the spraying device is obtained.

10. A photovoltaic module, characterized in that: It comprises a cell layer, a back glass and a reflective layer arranged on the outer surface of the back glass, wherein the reflective layer is made by the method for manufacturing a reflective layer of a photovoltaic module according to any one of claims 7 to 9.

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