Device for adhering photovoltaic glass and adhesive film

Abstract

The utility model relates to the field of photovoltaic module manufacturing, and discloses a device for adhesion of photovoltaic glass and an adhesive film, which comprises a support assembly, a heating assembly and a heat source, the heating assembly is arranged on the support assembly, the heating assembly is positioned at a corresponding position above the photovoltaic glass to be adhered and the adhesive film which flow into the device, and the heat source is arranged on the support assembly. The heating area of the heating assembly is at least 90% of the area of the adhesive film; the heat source supplies heat to the heating assembly. The heating area of the heating assembly of the device can cover the vast majority of the adhesive film, the defects that spot hot stamping marks exist, the adhesive film swells and is uneven and the like due to the existing spot hot stamping and local heating modes are overcome, the product yield is improved, the heating assembly can heat and smooth the adhesive film at the same time in one procedure, and therefore adhesion of photovoltaic glass and the adhesive film is completed, and the production efficiency is improved. The equipment structure is simplified, and the equipment cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic module manufacturing, and particularly relates to a device for adhering photovoltaic glass and a glue film. Background Art

[0002] In the process of manufacturing photovoltaic modules, a very crucial process is to pre - adhere the glue film and photovoltaic glass. Specifically, after a piece of photovoltaic glass flows out, a glue film needs to be laid, and then a photo - correction system is used to correct the position of the glue film. Next, the glue film is heated to complete the pre - adhesion with the photovoltaic glass.

[0003] Currently, in the existing manufacturing process, a dot - ironing machine is usually used to dot - iron the four corners of the glue film to fix it to the photovoltaic glass and then flow it into the subsequent process. However, the dot - ironing method has the problem of dot - ironing marks after lamination. Moreover, since only the four corners of the glue film are fixed, when the photovoltaic module moves forward on the assembly line, air easily enters the middle position of the glue film, resulting in defects such as abnormal bulging and unevenness of the glue film. If this problem is not completely solved, when the battery chip is placed at the bulging glue film, it will cause hidden crack defects.

[0004] In view of this, the related prior art has improved the dot - ironing method. For example, through the cooperation of two separately arranged glue - film smoothing components and heating components to complete the laying of the glue film. First, the heating component heats one end of the glue film to melt the glue film, and then the melted glue film is locally bonded and fixed to one end of the substrate. Then, the glue - film smoothing component is controlled to press down and contact the glue film, and while moving from this end to the other end of the glue film, the glue film is smoothed on the substrate. After smoothing, the heating component locally heats and fixes the other end of the glue film. Although fixing the two ends of the glue film has many advantages, this technical means still fails to completely solve the above problems. Moreover, setting two components respectively to achieve the functions of smoothing and electric ironing of the glue film increases the equipment cost.

[0005] In summary, aiming at the problems existing in the above - mentioned prior art, there is an urgent need in the art for a device for adhering photovoltaic glass and a glue film that can overcome the defects of the existing dot - ironing and local - heating methods. Summary of the Utility Model

[0006] In view of this, the purpose of the present utility model is to provide a device for adhering photovoltaic glass and a glue film, which can achieve large - area adhesion of the glue film and photovoltaic glass, improve the product yield, and thus solve the problems of the prior art.

[0007] Based on the above purpose, on the one hand, an embodiment of the present utility model provides a device for adhering photovoltaic glass and a glue film, including a bracket assembly, a heating assembly, and a heat source.

[0008] The heating component is disposed on the support component, and the heating component is located at a corresponding position above the photovoltaic glass and the adhesive film to be adhered that are transferred to the device. The heating area of the heating component is at least 90% of the area of the adhesive film.

[0009] The heat source supplies heat to the heating component.

[0010] For the device for adhering photovoltaic glass and an adhesive film as described above, preferably, at least one set of double-rail sliders is horizontally arranged on the support component. The heating component includes a cross bar, heatable rollers, longitudinal connecting rods, sliders, and a driving part. The heatable rollers are rotatably sleeved on the cross bar. One end of each of the two ends of the cross bar is connected to one end of a longitudinal connecting rod. The other end of each longitudinal connecting rod is provided with the slider. The slider cooperates with the slider rail to move on the slider rail under the drive of the driving part.

[0011] For the device for adhering photovoltaic glass and an adhesive film as described above, preferably, the heating component includes a heatable flat plate and longitudinal connecting rods. The heatable flat plate is parallel to the photovoltaic glass and the adhesive film to be adhered, so as to achieve full contact with the adhesive film. The heatable flat plate is connected to the support component through the longitudinal connecting rods arranged above it.

[0012] For the device for adhering photovoltaic glass and an adhesive film as described above, preferably, it further includes a photographing positioning and deviation correction system and multiple cameras arranged on the support component. Each camera is in wired communication connection or wireless communication connection with the photographing positioning and deviation correction system. The cameras are located at corresponding positions above the corners of the adhesive film.

[0013] For the device for adhering photovoltaic glass and an adhesive film as described above, preferably, it further includes multiple suction cup components arranged on the support component. The suction cup components are located at corresponding positions above the four corners of the adhesive film. The photographing positioning and deviation correction system controls the suction cup components.

[0014] For the device for adhering photovoltaic glass and an adhesive film as described above, preferably, it further includes multiple manipulators arranged on the support component. Each manipulator includes a rotatable mechanism and a gripper. One end of the rotatable mechanism of each manipulator is fixedly connected to the support component, and the other end is connected to the gripper. The photographing positioning and deviation correction system controls the manipulators.

[0015] Beneficial effects

[0016] The device for adhering photovoltaic glass to a glue film provided by the present utility model improves the heating component and increases its heating area, enabling heating of at least 90% of the glue film. Therefore, there are no spot ironing marks or glue film bulges, and the surface of the laid glue film is flat, thereby improving the product yield. In addition, the heating component can simultaneously achieve glue film heating and smoothing in one process, thus completing the adhesion of photovoltaic glass to the glue film, simplifying the equipment structure, and there will be no glue overflow after lamination, so the edge trimming machine can be cancelled, significantly saving the equipment cost. Description of the Drawings

[0017] Figure 1 FIG. is a schematic structural diagram of a device for adhering photovoltaic glass to a glue film according to an embodiment of the present utility model;

[0018] Figure 2 FIG. is a schematic diagram of the positional relationship between a heatable roller and photovoltaic glass according to an embodiment of the present utility model.

[0019] Description of the Reference Numerals:

[0020] 1 - support assembly; 2 - heating component; 21 - cross bar; 22 - heatable roller; 23 - longitudinal connecting rod; 3 - heat source; 4 - slide rail; 5 - photographing positioning and deviation correction system; 6 - camera; 7 - suction cup assembly; 8 - manipulator; 81 - rotatable mechanism; 82 - jaw; A - photovoltaic glass Detailed Embodiment

[0021] The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model. Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0022] Based on the above purposes, an embodiment of a device for adhering photovoltaic glass to a glue film is proposed in an embodiment of the present utility model. Figure 1 FIG. is a schematic structural diagram of a device for adhering photovoltaic glass to a glue film. As Figure 1 shown in the figure, the device for adhering photovoltaic glass to a glue film mainly includes a support assembly 1, a heating component 2, and a heat source 3. The support assembly 1 serves as the main structure of the device to carry other components or modules. The support assembly 1 may include four support legs and an upper mounting frame. The four support legs are respectively arranged at the edges of the upper mounting frame to support the upper mounting frame, and the upper mounting frame is used to mount other components or modules. The working space is located below the upper mounting frame and between the four support legs. The heating component 2 is disposed on the support assembly 1, and the heating component 2 is located at the corresponding position above the photovoltaic glass and the glue film to be adhered that are transferred to the device. The heating area of the heating component 2 is at least 90% of the area of the glue film, so as to complete the pre - adhesion of the large - area glue film to the photovoltaic glass. The heat source 3 supplies heat to the heating component 2.

[0023] Specifically, at least one set of double-rail sliders 4 is horizontally arranged on the bracket assembly 1 to guide the heating assembly 2 to move on the upper surface of the adhesive film. The heating assembly 2 includes a cross bar 21, a heatable roller 22, a longitudinal connecting rod 23, a slider, and a driving part. The slider is embedded in the slider rail 4, and the driving part is a built-in driving motor, so Figure 1 it is not shown. The slider can be a smooth sliding block, a sliding member with sliding teeth, or a pulley or other conventional sliding components in the art. The heatable roller 22 is rotatably sleeved on the cross bar 21. Two ends of the cross bar 21 are respectively connected to one end of a longitudinal connecting rod 23. The other end of each longitudinal connecting rod 23 is provided with the slider, and the slider cooperates with the slider rail 4 to move on the slider rail 4 under the drive of the driving part. Figure 2 It is a schematic diagram of the positional relationship between the heatable roller and the photovoltaic glass. As Figure 2 shown in the figure, A represents the photovoltaic glass, and the direction indicated by the arrow is the running direction of the heatable roller 22. Preferably, the starting position of the heatable roller 22 is 2 ± 1 mm away from the short side of the photovoltaic glass, the ending position of the heatable roller 22 is 2 ± 1 mm away from the short side of the photovoltaic glass, and the two sides of the heatable roller 22 are 2 ± 1 mm away from the long side of the photovoltaic glass. Obviously, by changing the layout of relevant components, the running direction of the heatable roller 22 can be adjusted and the number of the heatable roller 22 can be increased.

[0024] As an alternative embodiment of the above embodiment, the heating assembly 2 includes a heatable flat plate and a longitudinal connecting rod. The heatable flat plate is parallel to the photovoltaic glass and the adhesive film to be adhered, so as to achieve complete contact with the adhesive film. The heatable flat plate is connected to the bracket assembly 1 through the longitudinal connecting rod arranged above it.

[0025] After the component flows into the device, first the camera takes a picture to collect the position information of the glue film. Then the suction cup sucks the glue film. Using the photo alignment and deviation correction system, the position of the glue film is adjusted and then placed on the glass. After that, the gripper firmly clamps the glue film at the four corners. The heat source 3 is actually a mobile power source. Through the connecting pipeline, it provides current to the nickel-chromium alloy wire inside the roller. Then the current is transmitted to the nickel-chromium alloy wire inside the roller (the nickel-chromium alloy wire inside the roller winds around the porcelain tube and then is covered with an iron shell on the outside. When the current passes through, the nickel-chromium alloy wire generates heat after the current passes, and the heat is transmitted to the outer iron shell. Similarly, the heatable flat plate of the above alternative embodiment can also be realized based on this principle). Then the surface of the roller continuously generates heat. The roller rolls from the starting position (the distance between the starting position of the roller and the short side of the photovoltaic glass is 2 ± 1 mm) to the ending position (the distance between the ending position of the roller and the short side of the photovoltaic glass is 2 ± 1 mm). The glue film in the middle position is pre-bonded (the pre-bonded area > 90%. Because the glue film has completed a large-area pre-bonding, there will be no bulging phenomenon caused by air entering. At the same time, the dot-ironing mark has been optimized). Then the glass flows out and enters the subsequent process; (the distance between the roller and the long side of the photovoltaic glass is 2 ± 1 mm).

[0026] In a preferred embodiment, the device further includes a photo positioning and deviation correction system 5 and multiple cameras 6 provided on the bracket assembly 1. Each camera 6 is in wired or wireless communication connection with the photo positioning and deviation correction system 5. The camera 6 is located at the corresponding position above the corners of the glue film. When the photovoltaic glass and the glue film flow into the device, the camera 6 first collects the position information of the glue film and transmits it to the photo positioning and deviation correction system 5. Then the photo positioning and deviation correction system 5 controls the relevant components to adjust and correct the position of the glue film and then place it on the photovoltaic glass.

[0027] In a preferred embodiment, the device further includes multiple suction cup assemblies 7 provided on the bracket assembly 1. The suction cup assemblies 7 are located at the corresponding positions above the four corners of the glue film. The photo positioning and deviation correction system 5 controls the suction cup assemblies 7.

[0028] In a preferred embodiment, the device further includes multiple manipulators 8 provided on the bracket assembly 1. Each manipulator 8 includes a rotatable mechanism (arm) 81 and a gripper 82. One end of the rotatable mechanism 81 of each manipulator 8 is fixedly connected to the bracket assembly 1, and the other end is connected to the gripper 82. The photo positioning and deviation correction system 5 controls the manipulators 8.

[0029] The device of the above preferred embodiment improves the accuracy and reliability of the glue film laying by automatically correcting the position of the glue film.

[0030] It should be noted that for those skilled in the art, the limitation of the above values should not limit the protection scope of the present utility model, which is only the preferred embodiment of the present utility model. Under the teaching of the present utility model, those skilled in the art can make modifications according to needs as long as the above-mentioned technical problems can be solved.

[0031] The overview of the adhesion process of photovoltaic glass and adhesive film using the device of the above embodiment is as follows: When the photovoltaic glass and the adhesive film flow into the device, the camera 6 first collects the position information of the adhesive film and transmits it to the photographing and positioning deviation correction system 5. Then, the photographing and positioning deviation correction system 5 controls the suction cup assembly 7 to adjust and correct the position of the adhesive film and then places it on the photovoltaic glass. After that, the jaws 82 of the manipulator 8 firmly clamp the four corners of the adhesive film and the photovoltaic glass. At this time, if there is still a deviation in the positions of the adhesive film and the photovoltaic glass relative to the heating assembly 2, then the photographing and positioning deviation correction system 5 can also perform secondary deviation correction, that is, control the manipulator 8 to adjust the positions of the adhesive film and the photovoltaic glass. After adjusting the positions, the heating assembly 2 (rollers) rolls from the starting position to the ending position on the adhesive film to make the adhesive film complete pre-adhesion (more than 90% of the pre-adhesion area). Because the adhesive film completes large-area pre-adhesion, air will not enter to cause the bulging phenomenon, and at the same time, the spot welding marks are avoided. Finally, the photovoltaic glass with the adhered adhesive film flows out and enters the subsequent process.

[0032] In summary, the present utility model provides a device for adhering photovoltaic glass and adhesive film. By improving the heating assembly and increasing its heating area, it can heat most of the adhesive film (at least 90% of the adhesive film), so there are no spot welding marks and bulging of the adhesive film. The surface of the laid adhesive film is flat, thereby improving the product yield. In addition, the heating assembly can simultaneously realize adhesive film heating and smoothing in one process to complete the adhesion of photovoltaic glass and adhesive film, simplifying the equipment structure, and there will be no glue overflow phenomenon after lamination, so the edge trimming machine can be cancelled, significantly saving the equipment cost.

[0033] Although the present utility model has been described in detail above with general descriptions and specific embodiments, on the basis of the present utility model, some modifications or improvements can be made, which are obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present utility model all fall within the scope of protection required by the present utility model.

Claims

1. A device for bonding photovoltaic glass to an adhesive film, comprising a support assembly, a heating assembly and a heat source, characterized in that: The heating component is arranged on the support component, and the heating component is located at a corresponding position above the photovoltaic glass to be bonded and the adhesive film that flows into the device, and the heating area of ​​the heating component is at least 90% of the adhesive film area; The heat source provides heat to the heating component.

2. The device for bonding photovoltaic glass to adhesive film according to claim 1, characterized in that: At least one set of double-track slide rails is horizontally arranged on the bracket assembly, and the heating assembly includes a cross bar, a heatable roller, a longitudinal connecting rod, a slider and a driving unit. The heatable roller is rotatably mounted on the cross bar, and the two ends of the cross bar are respectively connected to one end of a longitudinal connecting rod, and the other end of each longitudinal connecting rod is provided with the slider, and the slider cooperates with the slide rail to move on the slide rail under the drive of the driving unit.

3. The device for bonding photovoltaic glass to adhesive film according to claim 1, characterized in that: The heating assembly includes a heatable flat plate and a longitudinal connecting rod. The heatable flat plate is parallel to the photovoltaic glass and the adhesive film to be bonded, thereby achieving full contact with the adhesive film. The heatable flat plate is connected to the bracket assembly via the longitudinal connecting rod arranged above it.

4. The device for bonding photovoltaic glass to an adhesive film according to any one of claims 1 to 3, characterized in that: It also includes a photographing positioning and correction system and multiple cameras arranged on the bracket assembly, each camera is connected to the photographing positioning and correction system by wired communication or wireless communication, and the camera is located at a corresponding position above the edge corner of the film.

5. The device for bonding photovoltaic glass to adhesive film according to claim 4, characterized in that: It also includes a plurality of suction cup assemblies arranged on the bracket assembly, the suction cup assemblies are located at corresponding positions above the four corners of the film, and the camera positioning and correction system controls the suction cup assemblies.

6. The device for bonding photovoltaic glass to adhesive film according to claim 4, characterized in that: It also includes multiple manipulators arranged on the bracket assembly, each manipulator includes a rotatable mechanism and a clamp, one end of the rotatable mechanism of each manipulator is fixedly connected to the bracket assembly, and the other end is connected to the clamp, and the camera positioning and correction system controls the manipulator.

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