Photovoltaic module adhesive film crosslinking degree test sample manufacturing device

Abstract

The utility model relates to a photovoltaic module adhesive film crosslinking degree test sample manufacturing device, belongs to the technical field of photovoltaic module production, and solves the problem of poor safety caused by explosion of glass in the manufacturing process of an adhesive film crosslinking degree test sample in the prior art. The utility model comprises a metal outer frame, wherein the metal outer frame is a rectangular frame body; a plurality of metal beams are arranged in a rectangular area defined by the metal outer frame and divide the rectangular area into a plurality of working areas and a plurality of spacer areas. And polytetrafluoroethylene cloth is arranged on the upper surface of each working area. According to the utility model, the sample preparation adhesive film is supported by the metal frame and the polytetrafluoroethylene cloth, so that the problem of glass burst in the adhesive film sample preparation process is avoided, and the safety is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic module production technical field especially relates to a kind of photovoltaic module adhesive film crosslinking degree test sample production device. BACKGROUND

[0002] Adhesive film is an important component of photovoltaic module, which is used to bond solar cell and cover plate, back plate together. Adhesive film will occur crosslinking reaction in the laminating process of photovoltaic module production. Usually, the crosslinking degree of adhesive film after laminating is tested to understand whether the performance of adhesive film after laminating can meet the production process requirements of photovoltaic module.

[0003] Currently, the crosslinking degree of photovoltaic module adhesive film is usually tested by the following method: first, make crosslinking degree test sample, cut the adhesive film into the size of 150mm×150mm, then place it between the front glass and back glass used in photovoltaic module, simulate the laminating process according to the process parameters in photovoltaic module production to obtain crosslinking degree test sample. Then, test the crosslinking degree of crosslinking degree test sample.

[0004] Currently, the main problems in the production of photovoltaic module adhesive film crosslinking degree test sample are as follows: glass is easy to burst during the simulation of laminating process, which has safety hazards. After the glass bursts, it needs to be stopped and cleaned, which affects the production capacity; personnel are easy to be cut during the process of cleaning the broken glass; with the increasing size of photovoltaic module glass, personnel are easy to be injured or cut during the process of lifting large glass for sample preparation. INVENTION CONTENTS

[0005] In view of the above analysis, the embodiments of the utility model aim to provide a kind of photovoltaic module adhesive film crosslinking degree test sample production device to solve the problem of glass burst and poor safety during the preparation of existing adhesive film crosslinking degree sample.

[0006] Specifically, the following technical solutions are included.

[0007] A kind of photovoltaic module adhesive film crosslinking degree test sample production device, including metal outer frame, the metal outer frame is rectangular frame body;Multiple metal beams are arranged in the rectangular area surrounded by the metal outer frame, the multiple metal beams divide the rectangular area into multiple work areas and multiple interval areas;Polytetrafluoroethylene cloth is arranged on the upper surface of each work area.

[0008] Further, the multiple work areas are arranged into three rows;The interval area has two, which are arranged between adjacent two rows of work areas.

[0009] Further, each row of work areas includes three work areas, and each work area is equal in size.

[0010] Further, the sizes of the plurality of interval regions are equal or unequal.

[0011] Further, each interval region is provided with a metal plate.

[0012] Further, the metal frame, the metal beam and the metal plate are made of aluminum alloy.

[0013] Further, the metal frame, the metal beam and the metal plate are welded together.

[0014] Further, the edges of the polytetrafluoroethylene cloth are pasted on the upper surfaces of the metal frame or the metal beam.

[0015] Further, a groove is arranged between the working region and the interval region, and the end of the polytetrafluoroethylene cloth is fixed on the lower surface of the metal frame or the metal beam surrounding the working region after passing through the groove or bypassing the metal frame.

[0016] Further, a polytetrafluoroethylene tape is attached on the upper surface of the polytetrafluoroethylene cloth along the edge of each working region.

[0017] Compared with the prior art, the utility model at least has one of the following beneficial effects:

[0018] (1) The utility model discloses a kind of sample production devices for testing degree of crosslinking of photovoltaic module adhesive film, when making degree of crosslinking of adhesive film test sample, two devices provided by the present application are used, adhesive film sample is clamped between the polytetrafluoroethylene cloth of two devices, then is put into laminator according to the process parameter when simulating laminating process of photovoltaic module production obtains degree of crosslinking test sample.Adhesive film sample production is replaced by glass using the sample production device provided by the utility model embodiment, in the simulation laminating process, glass burst problem does not occur, and safety is high.Moreover, polytetrafluoroethylene cloth can keep stable in the laminating process, and will not affect degree of crosslinking sample, and will not affect the accuracy of test result.

[0019] (2) Further, the sample production device provided by the utility model embodiment is further provided with a metal plate in interval region.Through setting metal plate, when simulating component laminating process, the sample production device provided by the utility model embodiment can be successfully identified by inductive switch of laminator, so that laminator can work normally.

[0020] (3) The sample production device for testing degree of crosslinking of adhesive film provided by the utility model embodiment is simple in structure, convenient to use, and is easy to popularize and apply.

[0021] The above technical solutions can be combined with each other to realize more optional combination solutions. Other features and advantages of the present application will be described in the following description, and some advantages can be apparent from the description or can be understood by implementing the present application. The purposes and other advantages of the present application can be realized and obtained from the contents particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0022] The drawings are only for the purpose of illustrating specific embodiments and are not considered as limiting the present application, and the same reference signs represent the same components throughout the drawings.

[0023] Figure 1 A front view of a sample preparation device for testing the cross-linking degree of a photovoltaic module adhesive film according to an embodiment of the present application.

[0024] Reference Signs:

[0025] 1-metal outer frame; 2-metal beam; 3-metal plate; 4-polytetrafluoroethylene cloth; 5-groove. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present application will be specifically described below in conjunction with the drawings, wherein the drawings form a part of the present application and are used to explain the principles of the present application together with the embodiments of the present application, and are not used to limit the scope of the present application.

[0027] Embodiment 1

[0028] Please see Figure 1 , which is a front view of a sample preparation device for testing the cross-linking degree of a photovoltaic module adhesive film according to an embodiment of the present application. As shown in Figure 1 , the preparation device includes a metal outer frame 1 which is a rectangular metal frame. A plurality of metal beams 2 are arranged inside the metal outer frame 1, wherein a part of the metal beams 2 are arranged along the length direction of the metal outer frame 1, and another part of the metal beams 2 are arranged along the width direction of the metal outer frame 1, so as to divide the rectangular area enclosed by the metal outer frame 1 into a plurality of working areas and interval areas.

[0029] Among them, the working area is used to place the sample preparation adhesive film, and the interval area is used to separate the plurality of working areas. The working area and the interval area are both rectangular.

[0030] In the embodiment, the metal frame 1 is divided into 9 working areas and 2 interval areas by 14 metal beams 2. The 9 working areas are divided into 3 rows, each row having 3 working areas. The 2 interval areas are equal in size and are located between the two rows of working areas, i.e., between the first row of working areas and the second row of working areas, and between the second row of working areas and the third row of working areas. Specifically, 8 metal beams 2 are arranged along the width direction of the metal frame 1, i.e., the length direction of the 8 metal beams 2 is parallel to the width direction of the metal frame 1. The 8 metal beams 2 arranged along the width direction are divided into 4 groups, each group having 2 metal beams 2. Each group of 2 metal beams 2 separates a working area from an interval area. In addition, 6 metal beams 2 are arranged along the length direction of the metal frame 1, i.e., the length direction of the 6 metal beams 2 is parallel to the length direction of the metal frame 1. The 6 metal beams 2 arranged along the length direction are divided into 3 groups, each group having 2 metal beams 2, thereby forming the structure of 3 rows, each row having 3 working areas.

[0031] It is obvious that the working areas and the interval areas are not limited to the above arrangement, and can be adjusted according to actual needs.

[0032] A polytetrafluoroethylene cloth 4 is fixedly arranged on the upper surface of each working area. The polytetrafluoroethylene cloth 4 is pasted on the metal beams 2 around the working area. In a preferred embodiment, a groove 5 penetrating the metal beams 2 is arranged between the working area and the interval area, or a certain interval is arranged between the metal beams 2 at the edge of the working area and the metal beams 2 at the edge of the interval area, i.e., a certain interval is arranged between the metal beams 2 arranged along the width direction in each group, and the interval forms a groove 5. The end of the polytetrafluoroethylene cloth 4 passes through the groove 5 or bypasses the edge of the metal frame 1, and is fixed on the lower surface of the metal beam 2, so that the polytetrafluoroethylene cloth 4 is taut and firmly fixed on the upper surface of the working area. In the sample preparation process for testing the crosslinking degree of the adhesive film, the polytetrafluoroethylene cloth 4 supports the sample preparation adhesive film.

[0033] When the sample preparation device provided in the embodiment of the utility model is used to prepare the crosslinking degree test sample of the adhesive film, the device is used to clamp the adhesive film sample between the polytetrafluoroethylene cloths of the two devices, and then the sample is put into a laminator to simulate the laminating process according to the process parameters in the production of photovoltaic modules to obtain the crosslinking degree test sample. Compared with the method of clamping the adhesive film sample between two pieces of glass to prepare the crosslinking degree test sample in the prior art, the device provided in the embodiment of the utility model does not cause glass explosion in the simulation of the laminating process, and has high safety. In addition, the polytetrafluoroethylene cloth can maintain stable properties in the laminating process and does not affect the crosslinking degree sample, so as not to affect the accuracy of the test result. Furthermore, the device has a simple structure and is convenient to use, and is easy to popularize and apply.

[0034] Further, high-temperature-resistant polytetrafluoroethylene tapes are attached on the upper surface of the polytetrafluoroethylene cloth 4 along the edges of each working area, which can make the polytetrafluoroethylene cloth 4 more firm and flat, and not easy to fall off and deform. Meanwhile, the tapes can also accurately divide different working areas, so that the sample preparation adhesive film can be simply positioned at the target position.

[0035] Further, the metal plate 3 is arranged in each interval area, and the metal plate 3 is preferably made of aluminum alloy. By arranging the metal plate 3, on the one hand, the self-weight of the sample preparation device can be increased, the contact area between the sample preparation device and the conveying belt in the laminating machine is increased, so that the friction is increased, and the slipping phenomenon during feeding in the simulation laminating machine during sample preparation can be effectively avoided. On the other hand, the metal plate 3 can be arranged at a position corresponding to the position of the discharge induction switch of the laminating machine, so that the sample preparation device can be inducted by the discharge induction switch of the laminating machine, and the laminating machine can be normally operated. In the embodiment of the present application, the metal plate 3 can cover all the interval areas, or can only cover part of the interval areas, as long as the sample preparation device as a whole can be easily inducted by the discharge induction switch of the laminating machine.

[0036] The metal outer frame 1, the metal beam 2 and the metal plate 3 can be welded together or integrally formed.

[0037] As an improvement of the present application, the metal outer frame 1, the metal beam 2 and the metal plate 3 are all made of aluminum alloy. The aluminum alloy has a small self-weight but high strength, and is convenient to carry and not easy to deform during use.

[0038] The polytetrafluoroethylene cloth 4 is used to support the sample preparation adhesive film, so that the sample preparation device is not easy to stick to the adhesive during sample preparation, and the device can be effectively prevented from being dirty.

[0039] The above description is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A sample preparation device for testing the crosslinking degree of photovoltaic module encapsulant film, characterized in that, The utility model relates to a metal frame (1) which is provided with a plurality of metal beams (2) in the rectangular area surrounded by the metal frame (1), and the plurality of metal beams (2) divide the rectangular area into a plurality of work areas and a plurality of interval areas; a polytetrafluoroethylene cloth (4) is arranged on the upper surface of each work area.

2. The sample making device of claim 1, wherein, The plurality of work areas are arranged in three rows; the interval areas are two, and are arranged between the adjacent two rows of work areas.

3. The sample making device of claim 2, wherein, Each row of work areas comprises three work areas, and the size of each work area is equal.

4. The sample making device according to claim 2 or 3, characterized in that The size of each interval area is equal or unequal.

5. The sample making device of claim 1, wherein, Each interval area is provided with a metal plate (3).

6. The sample making device of claim 5, wherein, The metal frame (1), the metal beam (2) and the metal plate (3) are all made of aluminum alloy.

7. The sample making device of claim 6, wherein, The metal frame (1), the metal beam (2) and the metal plate (3) are welded together.

8. The sample making device of claim 1, wherein, The edge of the polytetrafluoroethylene cloth (4) is pasted on the upper surface of the metal frame (1) or the metal beam (2).

9. The sample making device of claim 1, wherein, A groove (5) is arranged between the work area and the interval area, and the end of the polytetrafluoroethylene cloth (4) passes through the groove (5) or is fixed on the lower surface of the metal frame (1) or the metal beam (2) surrounding the work area after bypassing the metal frame (1).

10. The sample making device of claim 9, wherein, A polytetrafluoroethylene adhesive tape is attached on the upper surface of the polytetrafluoroethylene cloth (4) along the edge of each work area.

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