Identification equipment and photovoltaic cell module production system

Abstract

The utility model provides identification equipment and a photovoltaic cell assembly production system, relates to the field of photovoltaic technology, and aims to solve the technical problems of complicated production process and high cost caused by the use of a plurality of identification codes before lamination of photovoltaic cell assemblies. The identification equipment comprises an identification device and a pressing device, the identification device is located on one side of the photovoltaic cell module, and the pressing device is located on the other opposite side of the photovoltaic cell module; the identification device is used for reading the identification code; the pressing device is used for at least attaching the identification code to the adhesive film, and the adhesive film is the adhesive film on the side, facing the identification device, of the photovoltaic cell assembly. The identification equipment is used for identifying the photovoltaic cell assembly before lamination, the photovoltaic cell assembly is internally provided with an identification code, the identification code is at least attached to an adhesive film through a pressing device, and the identification device can obtain a clear identification code image only by using the identification code in the photovoltaic cell assembly; therefore, the production process of the photovoltaic cell module is simplified, and the economic benefit is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaics, and in particular to an identification device and a photovoltaic cell assembly production system. Background Art

[0002] The statements in this section merely provide background technology related to the present invention and do not necessarily constitute prior art.

[0003] During the production process of photovoltaic cell modules, the information of the cell modules is passed to the Manufacturing Execution System (MES) by pasting identification codes, which facilitates traceability, improves production efficiency and quality, and reduces production costs.

[0004] Usually, there is an identification code inside the photovoltaic cell module. However, because the film is not cured before the photovoltaic cell module is laminated, the code scanning device cannot recognize the identification code behind the film. Therefore, all photovoltaic cell modules will have a spare identification code attached to the lead-out line, which is not affected by the film and can be recognized normally. However, the spare identification code will be discarded after the photovoltaic cell module is laminated, which complicates the production process and increases costs. Utility Model Content

[0005] The utility model aims to provide an identification device and a photovoltaic cell assembly production system to solve the technical problems of complicated production process and high cost caused by the use of multiple identification codes in photovoltaic cell assemblies.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] In a first aspect, the utility model provides an identification device for identifying a photovoltaic cell assembly before lamination, wherein the photovoltaic cell assembly is provided with an identification code, and the identification device comprises an identification device and a pressing device, wherein the identification device is located on one side of the photovoltaic cell assembly, and the pressing device is located on the other side opposite to the photovoltaic cell assembly;

[0008] The identification device is used to read the identification code;

[0009] The pressing device is used to stick the identification code at least on an adhesive film, and the adhesive film is the adhesive film on the side of the photovoltaic cell assembly facing the identification device.

[0010] According to at least one embodiment of the present utility model, the pressing device includes a telescopic portion and a linear drive mechanism for driving the telescopic portion to move, the telescopic portion is used to apply pressure to the photovoltaic cell assembly, and the movement direction of the telescopic portion is a preset direction;

[0011] The preset direction is a distribution direction from the identification device to the pressing device.

[0012] According to at least one embodiment of the present utility model, a pressure plate is further provided at one end of the telescopic portion away from the linear drive mechanism, and the pressure plate is used to adhere to the surface of the photovoltaic cell assembly away from the identification device.

[0013] According to at least one embodiment of the present utility model, a buffer mechanism is further provided on the side of the pressure plate facing the photovoltaic cell assembly, and the buffer mechanism includes a rubber pad, an air bag or a film with raised points.

[0014] According to at least one embodiment of the present utility model, the linear drive mechanism includes one of a linear motor, an electric cylinder, a pneumatic cylinder or a hydraulic cylinder.

[0015] According to at least one embodiment of the present utility model, the identification device further includes a position detection device and a control device communicatively connected to the position detection device;

[0016] The position detection device is used to detect the position of the photovoltaic cell assembly, and the control device is used to control the opening and closing of the pressing device based on the information of the position detection device, and / or to parse the identification code obtained by the identification device.

[0017] According to at least one embodiment of the present utility model, the identification device further comprises an alarm device communicatively connected to the control device, the alarm device being used to issue an alarm prompt based on a preset condition;

[0018] The preset condition includes that the number of times that the control device fails to parse the identification code exceeds a threshold.

[0019] According to at least one embodiment of the present utility model, the identification device includes one of a camera, a barcode scanner or a QR code reader.

[0020] According to at least one embodiment of the present utility model, the identification code is provided on a bus bar of the photovoltaic cell assembly.

[0021] In a second aspect, the utility model provides a photovoltaic cell assembly production system, comprising the identification device described in the first aspect.

[0022] Among the one or more technical solutions provided in the exemplary embodiments of the present utility model, at least one of the following beneficial effects can be achieved.

[0023] The identification device of the exemplary embodiment of the utility model is used for identifying a photovoltaic cell assembly before lamination, wherein the identification code is set inside the photovoltaic cell assembly. The identification device includes an identification device and a pressing device, which are located on opposite sides of the photovoltaic cell assembly to be identified. Since the identification code in the photovoltaic cell assembly before lamination will be blocked by the uncured adhesive film, it cannot be read by the identification device. The identification code is at least attached to the adhesive film by the pressing device, that is, the gap between the identification code and the adhesive film is eliminated, so that the identification device can obtain a clear identification code.

[0024] Compared with the prior art, it is necessary to paste a spare identification code on the external lead wire of the photovoltaic cell assembly before lamination for identification. The use of the identification device of the exemplary embodiment of the utility model can cancel the spare identification code, which not only reduces the consumption of the identification code, but also saves the labor cost of pasting the spare identification code. Based on this, the production process of the photovoltaic cell assembly is simplified and the economic benefit is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings illustrate exemplary embodiments of the present invention and are used to explain the principles of the present invention together with the description thereof, wherein these drawings are included to provide a further understanding of the present invention, and the accompanying drawings are included in and constitute a part of this specification;

[0026] Figure 1 It is a schematic diagram of the structure of a photovoltaic cell assembly according to an embodiment of the utility model;

[0027] Figure 2 It is a schematic diagram of the structure of an identification device according to an implementation of the utility model.

[0028] Figure numerals: 10, pressing device; 11, linear drive mechanism; 12, telescopic part; 13, pressing plate; 20, identification device; 30, photovoltaic cell assembly; 31, battery cell; 32, adhesive film; 33, cover plate; 34, bus bar; 35, back plate; 40, bracket; 50, identification code. DETAILED DESCRIPTION

[0029] 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 used to limit the present invention.

[0030] During the preparation of photovoltaic cell modules, the identification of photovoltaic cell modules is mainly done by manually pasting identification codes, and then the module information is transmitted to MES by machine scanning for easy traceability. Since the identification codes of photovoltaic cell modules are generally pasted on bus bars, before the lamination process, the scanning equipment cannot clearly read the identification codes due to the obstruction of the unmelted EVA film and the gap between the two.

[0031] In the related art, a spare identification code is usually attached to the lead-out line of the photovoltaic cell module. The spare identification code is the same as the identification code at the bus bar. The spare identification code needs to be torn off and discarded after the module is laminated. At the same time, the spare barcode will cause additional downtime due to external factors, such as barcode reflection, distortion, curling, etc. The attachment of the spare identification code also requires a manual attachment, which complicates the production process of the photovoltaic cell module and increases the cost.

[0032] In response to the above problems, the photovoltaic cell assembly identification device provided by the exemplary embodiment of the utility model can clearly identify the photovoltaic cell assembly even before lamination through the cooperation of the pressing device and the identification device, thereby eliminating the backup identification code and retaining only the identification code at one bus bar, thereby simplifying the production process and improving economic benefits.

[0033] It should be noted that the photovoltaic cell assembly identification device provided by the exemplary embodiment of the utility model is not only applicable to the identification of photovoltaic cell assemblies before entering the lamination device, but also applicable to the identification of photovoltaic cell assemblies before entering the electroluminescent (EL) detection device. It is not only applicable to the identification of single-glass photovoltaic cell assemblies, but also applicable to the identification of double-glass photovoltaic cell assemblies.

[0034] Figure 1 Schematic diagram of the photovoltaic cell assembly structure according to the embodiment of the present utility model. Figure 1As shown, the photovoltaic cell assembly 30 provided by the exemplary embodiment of the utility model is composed of a cover plate 33, an adhesive film 32, a cell 31, another adhesive film 32 and a back plate 35 from the light-facing side to the backlight side. Among them, the cover plate 33 can be a glass plate, and the cell 31 is also connected to a bus bar 34. Due to the requirements of the production process of the photovoltaic cell assembly 30, the identification code 50 is set at one end of the bus bar 34 for identifying the photovoltaic cell assembly 30. Before the photovoltaic cell assembly 30 is laminated, the bus bar 34 cannot be completely attached to the adhesive film 32 near the cover plate 33, that is, there is a certain gap between the identification code 50 and the adhesive film 32 near the cover plate 33, and the adhesive film 32 is in an uncured state before lamination, and its transparency is poor, resulting in the identification device set on one side of the cover plate 33 being unable to clearly obtain the identification code 50 located behind the adhesive film 32 near the cover plate 33, and unable to identify the photovoltaic cell assembly 30, thereby reducing the efficiency of the production line.

[0035] Figure 2 Schematic diagram of the structure of the identification device according to the embodiment of the present utility model. Figure 2 As shown, the identification device provided by the exemplary embodiment of the utility model includes an identification device 20 and a laminating device 10, the identification device 20 is located on one side of the photovoltaic cell assembly 30, and the laminating device 10 is located on the other side opposite to the photovoltaic cell assembly 30; the identification device 20 is used to read the identification code 50; the laminating device 10 is used to at least adhere the identification code 50 to the adhesive film 32, and the adhesive film 32 is the adhesive film 32 on the side of the photovoltaic cell assembly 30 facing the identification device 20.

[0036] In actual application, on the conveying line, one side of the cover plate 33 of the photovoltaic cell assembly 30 faces downward, that is, the pressing device 10 is located on one side of the back plate 35 of the photovoltaic cell assembly 30, and the identification device 20 is located on one side of the cover plate 33 of the photovoltaic cell assembly 30. When the photovoltaic cell assembly 30 reaches the pressing position of the pressing device 10, the pressing device 10 applies pressure from the side of the back plate 35 of the photovoltaic cell assembly 30, so that the cover plate 33, the adhesive film 32, the cell sheet 31, the other adhesive film 32 and the back plate 35 of the photovoltaic cell assembly 30 are pressed together and attached to the conveying line, that is, the two adhesive films 32 form a clamp for the identification code 50, and the identification code 50 is attached to the adhesive film 32 on the side of the photovoltaic cell assembly 30 facing the identification device 20, so that a clear image of the identification code 50 can be obtained from the side of the cover plate 33. The identification device 20 arranged on the side of the cover plate 33 obtains a clear image of the identification code 50, thereby realizing the identification of the photovoltaic cell assembly 30. Based on this, relevant information of the photovoltaic cell assembly 30 can be accurately obtained through one identification.

[0037] As can be seen from the above, the identification device provided by the exemplary embodiment of the utility model can realize the identification of the photovoltaic cell assembly 30 before or after lamination by using the existing identification code 50 at the bus bar 34. The identification code 50 is an indispensable process and component in the production process of the photovoltaic cell assembly. Therefore, the photovoltaic cell assembly 30 only uses one identification code 50 through the identification device to realize the information acquisition of the photovoltaic cell assembly 30 in the entire production process. Compared with the prior art using two identification codes 50, one identification code 50 at the bus bar 34 and one spare identification code 50 at the lead wire, it can not only reduce the abnormality caused by the spare identification code 50 at the lead wire, but also reduce the consumption of the identification code 50, simplify the process of attaching the identification code 50, and thus improve the economic benefits.

[0038] Exemplarily, the identification code 50 may be one of a barcode, a QR code, a radio frequency chip, etc. Correspondingly, the identification device 20 may be one of a camera, a barcode scanner, a QR code reader, a tablet, and an NFC reader.

[0039] In some embodiments, Figure 2 As shown, the pressing device 10 includes a telescopic part 12 and a linear drive mechanism 11 for driving the telescopic part 12 to move. The telescopic part 12 is used to apply pressure to the photovoltaic cell assembly 30, and the movement direction of the telescopic part 12 is a preset direction; the preset direction is the distribution direction from the identification device 20 to the pressing device 10.

[0040] Exemplarily, the above-mentioned linear drive mechanism 11 can be one of a linear motor, an electric cylinder, a cylinder or a hydraulic cylinder. For the convenience of description, the linear drive mechanism 11 will be described as a cylinder below. The telescopic part 12 can perform linear motion under the drive of the cylinder. Specifically, the telescopic part 12 can move along a preset direction, so that the telescopic part 12 can move away from or close to the back plate 35 of the photovoltaic cell assembly 30. When the photovoltaic cell assembly 30 is conveyed from the conveyor line to the preset position, the cylinder drives the telescopic part 12 to press down and contact the back plate 35 of the photovoltaic cell assembly 30, and continues to press down so that the layers of the photovoltaic cell assembly 30 fit together, so that the identification code 50 is attached to the adhesive film 32. The above-mentioned preset direction refers to the direction from the back plate 35 of the photovoltaic cell assembly 30 to the cover plate 33. Figure 2 The direction in the figure is the up-down direction of the paper. When the identification code 50 of the photovoltaic cell assembly 30 is recognized by the recognition device 20, the telescopic portion 12 is retracted in a direction away from the back plate 35 close to the photovoltaic cell assembly 30 under the drive of the cylinder, thereby releasing the photovoltaic cell assembly 30, so that the photovoltaic cell assembly 30 enters the next process, such as the lamination process or the EL detection process, under the drive of the conveyor line.

[0041] For example, the number of the telescopic parts 12 can be one or more. The number of the cylinders can be one or more, which can be adjusted according to the actual pressing needs. It should be noted that the telescopic part 12 can be a telescopic rod of the cylinder, or a plurality of finger-shaped connecting rods connected to the telescopic rod. One extension of the cylinder can drive the plurality of connecting rods to press down the back plate 35 of the photovoltaic cell assembly 30.

[0042] It should be noted that the position of the pressing device 10 can be located above the identification code 50 of the photovoltaic cell assembly 30, or in the middle area of ​​the photovoltaic cell assembly 30. When the photovoltaic cell assembly 30 is conveyed to the preset position on the conveying line, the preset position is the identification position of the identification device 20. At this time, the identification code 50 of the photovoltaic cell assembly 30 is just located directly below the pressing device 10, so that the identification code 50 is completely attached to the adhesive film 32, so that the identification device 20 obtains a clear image of the identification code 50. Optionally, since each layer of the photovoltaic cell assembly 30 is a straight plane, the identification code 50 can be completely attached to the adhesive film 32 by pressing the middle area of ​​the photovoltaic cell assembly 30 with the pressing device 10.

[0043] Considering that each layer of the photovoltaic cell assembly 30 is a straight plane, especially including the fragile cover plate 33, the photovoltaic cell assembly 30 may be damaged when the pressing device 10 makes a downward pressure point contact with the photovoltaic cell assembly 30. A surface contact method can be adopted to reduce the possibility of the pressing device 10 damaging the photovoltaic cell assembly 30.

[0044] For example, a pressing plate 13 is further provided at one end of the telescopic portion 12 away from the linear drive mechanism 11, and the pressing plate 13 is used to adhere to the surface of the photovoltaic cell assembly 30 away from the identification device 20. The pressing plate 13 can be a planar plate, and the pressing plate 13 is parallel to the back plate 35 of the photovoltaic cell assembly 30. When the cylinder drives the telescopic portion 12 to press down, the pressing plate 13 provided on the telescopic portion 12 adheres to the back plate 35 of the photovoltaic cell assembly 30 to form a surface contact, and continues to apply pressure to the photovoltaic cell assembly 30, so that the identification code 50 is completely adhered to the adhesive film 32. By transforming the point contact of the telescopic portion 12 into the surface contact between the pressing plate 13 and the back plate 35 of the photovoltaic cell assembly 30, the potential risk of the pressing device 10 damaging the photovoltaic cell assembly 30 can be reduced.

[0045] In order to further reduce the potential risk of damage to the photovoltaic cell assembly 30 by the pressing device 10, especially the damage to the back plate 35 or glass of the photovoltaic cell assembly 30, a buffer mechanism is also provided on the side of the pressing plate 13 facing the photovoltaic cell assembly 30, and the buffer mechanism includes a rubber pad, an air bag or a film with convex points. That is, the buffer mechanism is provided on the surface where the pressing plate 13 contacts the back plate 35 of the photovoltaic cell assembly 30, so as to minimize the impact of the pressing plate 13 on the back plate 35 under the push of the cylinder.

[0046] like Figure 2 As shown, the identification device provided by the exemplary embodiment of the utility model also includes a bracket 40, wherein the pressing device 10 and the identification device 20 can be fixedly connected to the bracket 40 to provide stable support, ensure that the relative position relationship between the pressing device 10 and the identification device 20 is fixed, prevent shaking during operation, and improve the recognition rate of the identification device 20 for the identification code 50.

[0047] In some embodiments, the identification device provided by the exemplary embodiment of the utility model also includes a position detection device and a control device communicatively connected to the position detection device; the position detection device is used to detect the position of the photovoltaic cell assembly 30, and the control device is used to control the opening and closing of the pressing device 10 based on the information of the position detection device, and the control device is also used to parse the identification code 50 obtained by the identification device 20.

[0048] Exemplarily, the position detection device may be an in-position switch, and the control device may be an electric control cabinet. The electric control cabinet may be a conventional electric cabinet with a PLC, an air switch and other related electrical components configured therein.

[0049] In some embodiments, the identification device provided by the exemplary embodiment of the utility model also includes an alarm device that is communicatively connected to the control device, and the alarm device is used to issue an alarm prompt based on preset conditions; the preset conditions include that the number of times the control device cannot parse the identification code 50 exceeds a threshold.

[0050] In actual application, the photovoltaic cell assembly 30 to be identified is transmitted on the conveyor line. When it triggers the in-place switch, the in-place switch transmits a signal to the control device, and the control device controls the cylinder to press, so that the clarity of the identification code 50 is improved so that the identification device 20 can accurately identify it. The identification device 20 identifies and photographs the identification code 50, and transmits the information of the identification code 50 to the analysis software, which is analyzed by the software. After the analysis is successful, it is saved to the PLC and transmitted to the MES for traceability. If the analysis is unsuccessful, the identification will be photographed again. After more than 3 times, the control device controls the alarm device to give an alarm prompt for manual intervention or automatic repair through the equipment. Exemplarily, the alarm device can be an audible and visual alarm, for example, a three-color alarm light.

[0051] The exemplary embodiment of the utility model also provides a photovoltaic cell assembly production system, including the identification device of any of the above embodiments. The photovoltaic cell assembly production system may include a laminating device and an EL detection device, wherein the identification device may be multiple, respectively arranged in front of the laminating device and the EL detection device. The photovoltaic cell assembly production system may also include a cell welding device, a layout laying device, a curing device, a framing device, a cleaning device, and may also include a conveyor belt for transporting photovoltaic cell assemblies between various processes.

[0052] Compared with the prior art, the advantages of the photovoltaic cell assembly production system of the exemplary embodiment of the utility model are the same as the advantages of the identification device, which will not be repeated here.

[0053] In summary, the identification device provided by the exemplary embodiment of the utility model can realize the function of identifying information in the entire production system of the photovoltaic cell assembly by cooperating with the pressing device and the identification device, and only using the identification code at the bus bar that the photovoltaic cell assembly must have in the existing process. The spare identification code used because the identification code at the bus bar in the photovoltaic cell assembly before lamination cannot be identified is cancelled, thereby simplifying the process and avoiding problems such as abnormal identification of the spare identification code due to curling and reflection at the lead wire. The recognition error rate is reduced, the normal operation of the production system is ensured, the production efficiency is improved, and the economic benefits are improved.

[0054] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present invention, and are not intended to limit the scope of the present invention. For those skilled in the art, other changes or modifications may be made based on the above disclosure, and these changes or modifications are still within the scope of the present invention.

Claims

1. An identification device, characterized in that: Used for identifying photovoltaic cell modules before lamination, wherein the photovoltaic cell modules are provided with identification codes, and the identification equipment comprises an identification device and a pressing device, wherein the identification device is located on one side of the photovoltaic cell modules, and the pressing device is located on the other side opposite to the photovoltaic cell modules; The identification device is used to read the identification code; The pressing device is used to stick the identification code at least on an adhesive film, and the adhesive film is the adhesive film on the side of the photovoltaic cell assembly facing the identification device.

2. The identification device according to claim 1, characterized in that The pressing device comprises a telescopic part and a linear driving mechanism for driving the telescopic part to move, the telescopic part is used to apply pressure to the photovoltaic cell assembly, and the movement direction of the telescopic part is a preset direction; The preset direction is a distribution direction from the identification device to the pressing device.

3. The identification device according to claim 2, characterized in that A pressing plate is also provided at one end of the telescopic portion away from the linear drive mechanism, and the pressing plate is used to be attached to the surface of the photovoltaic cell assembly away from the identification device.

4. The identification device according to claim 3, characterized in that A buffer mechanism is also arranged on the side of the pressing plate facing the photovoltaic cell assembly. The buffer mechanism includes a rubber pad, an air bag or a film with convex points.

5. The identification device according to claim 3, characterized in that The linear drive mechanism includes one of a linear motor, an electric cylinder, a pneumatic cylinder or a hydraulic cylinder.

6. The identification device according to any one of claims 1 to 5, characterized in that: The identification device also includes a position detection device and a control device in communication with the position detection device; The position detection device is used to detect the position of the photovoltaic cell assembly, and the control device is used to control the opening and closing of the pressing device based on the information of the position detection device, and / or to parse the identification code obtained by the identification device.

7. The identification device according to claim 6, characterized in that The identification device further comprises an alarm device which is communicatively connected to the control device, and the alarm device is used to issue an alarm prompt based on a preset condition; The preset condition includes that the number of times that the control device fails to parse the identification code exceeds a threshold.

8. The identification device according to any one of claims 1 to 5, characterized in that: The identification device includes one of a camera, a barcode scanner or a QR code reader.

9. The identification device according to any one of claims 1 to 5, characterized in that: The identification code is arranged on the bus bar of the photovoltaic cell assembly.

10. A photovoltaic cell assembly production system, characterized in that: The invention comprises the identification device according to any one of claims 1 to 9.

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