Stripping test device for packaging adhesive film
By designing a peeling test device on the tempered glass of photovoltaic modules, the testing errors and time-consuming production problems caused by small sample tempered glass are solved, and efficient and accurate packaging film peeling strength testing is achieved.
Patent Information
- Application Number
- CN202422697215.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-05
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-05
AI Technical Summary
In the existing peel strength test of photovoltaic module encapsulation film, the use of small samples of tempered glass leads to inaccurate test results, and the preparation of test samples is time-consuming, affecting production efficiency.
A packaging film peeling test device was designed, which included a moving device, a tensile gauge and a film clamp. The device can be directly tested on tempered glass in actual use. The packaging film is peeled off by the moving device and the film clamp, and the tensile force is detected by the tensile gauge.
It can accurately test the peel strength of the packaging film on tempered glass of any size, reduce test errors, improve production efficiency, and avoid the time waste caused by making small samples.
Smart Images
Figure CN223485792U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of encapsulation film peel testing technology, specifically relating to a peel testing device for encapsulation films. Background Technology
[0002] Before leaving the factory, photovoltaic modules are often encapsulated by covering the surface of the tempered glass layer with an encapsulating film. The existing encapsulating films for photovoltaic modules mainly include three types: EVA, POE, and PVB. Peel strength testing is an important means of evaluating the bonding strength between these three types of encapsulating films and the tempered glass layer (tempered glass surface), and it is widely used in the photovoltaic industry.
[0003] Currently, the peel strength test of encapsulating films is often carried out using a tensile testing machine. This involves attaching the encapsulating film to the surface of tempered glass, fixing the tempered glass to the operating table of the tensile testing machine, and then having the tensile testing machine pull the encapsulating film to peel it off, while measuring the peel strength during the peeling process.
[0004] However, in actual testing, due to the large size of the tempered glass in photovoltaic modules, generally above 1.2m*1.6m, and the fact that tempered glass cannot be cut, when testing the peel strength of the encapsulating film, it is necessary to either customize or purchase other tempered glass of suitable size from the market as test samples to conduct peel strength tests on the encapsulating film.
[0005] The problems with using small test samples for testing include:
[0006] 1. Due to the differences between different tempered glass, using small samples as a substitute for the tempered glass in photovoltaic modules causes deviations between the test and actual use, affecting the accuracy of the test results.
[0007] 2. Using small-sized tempered glass to laminate test samples takes a long time, delays the construction period, and affects production efficiency and progress. Utility Model Content
[0008] To address the aforementioned problems in the existing technology, this solution provides a peel test device for encapsulating films.
[0009] The technical solution adopted in this utility model is as follows:
[0010] A peel test device for encapsulating film includes a moving device, a tensile tester, and an encapsulating film clamp;
[0011] The encapsulating film is adhered to the upper surface of the tempered glass, and the encapsulating film is cut into strips of a specified width;
[0012] The moving device is capable of moving along the surface of tempered glass; the tensile tester is fixed to the moving device and moves with the moving device; the adhesive film clamp is fixed to the measuring end connector of the tensile tester and connected to the front end of the encapsulating adhesive film.
[0013] When the moving device moves backward along the length of the encapsulating film, the film clamp pulls the front end of the encapsulating film backward to peel the encapsulating film off the tempered glass. The tension gauge detects the tension during the peeling process of the encapsulating film.
[0014] As an alternative or supplement to the above-mentioned peel test device: during the peel process, the height of the connection between the adhesive film clamp and the encapsulating adhesive film from the upper surface of the tempered glass is 0.5cm ± 0.1cm.
[0015] As an alternative or supplement to the above-mentioned peel test device: a groove is provided on the top of the moving device, and a clamping screw is threadedly connected to the groove wall. The main body of the tensile gauge is installed in the groove and is clamped and fixed by the clamping screw.
[0016] As an alternative or supplement to the above-mentioned peeling test device: the mobile device is a remote-controlled mobile trolley with wheels at the bottom. The remote-controlled mobile trolley contains a motor and a battery. The motor is connected to the wheels, and the battery powers the motor.
[0017] As an alternative or supplement to the above-mentioned peel test device: the film clamp includes a clamping bracket and a clamping plate. The rear end of the clamping bracket is fixedly connected to the measuring end connector, and the front end of the clamping bracket cooperates with the clamping plate to clamp the front end of the encapsulated film.
[0018] As an alternative or supplement to the above-mentioned peeling test device, the clamping bracket is Z-shaped.
[0019] As an alternative or supplement to the above-mentioned peel test device: the rear end of the clamping bracket is fixed to the measuring end connector by the first fixing screw.
[0020] As an alternative or supplement to the above-mentioned peel test device: a second fixing screw passing through the front end of the clamping bracket and the clamping plate will be fixedly connected together.
[0021] The beneficial effects of this utility model are as follows:
[0022] 1. The peel test device in this solution can be placed on the tempered glass used in actual applications for direct testing. It can test the encapsulation film on tempered glass of any size, is flexible in use, has low requirements for the size of the tempered glass, and reduces test errors caused by differences between the tempered glass used in actual applications and the tempered glass used for testing.
[0023] 2. In addition, there is no need to purchase or customize test samples separately, avoiding the time-consuming process of obtaining test samples, avoiding delays in the project schedule, and ensuring production efficiency and progress. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this scheme or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0025] Figure 1 This is a diagram showing the usage status of the peel test device for the encapsulating film in this solution.
[0026] In the diagram: 1-Tempered glass; 2-Encapsulating film; 3-Moving device; 4-Force gauge; 5-Clamping screw; 6-Measuring end connector; 7-Clamping bracket; 8-Clamping piece; 9-First fixing screw; 10-Second fixing screw. Detailed Implementation
[0027] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only a part of the embodiments, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments in this solution without creative effort are within the protection scope of this solution.
[0028] Example 1
[0029] like Figure 1 As shown, this embodiment designs a peel test device for the encapsulating film 2, including a moving device 3, a tensile tester 4, and a film clamp, etc.
[0030] The mobile device 3 is capable of moving along the surface of the tempered glass 1. The mobile device 3 can be a remote-controlled mobile cart with wheels at its lower part. The remote-controlled mobile cart contains a motor and a battery. The motor is connected to the wheels, and the battery powers the motor. The remote-controlled mobile cart also contains a remote control module, which communicates with the remote controller and controls the starting and stopping of the motor.
[0031] The force gauge 4 is fixed to the moving device 3 and moves with the moving device 3. A groove is provided on the top of the moving device 3, and a locking screw 5 is threaded onto the groove wall. The main body of the force gauge 4 is installed in the groove and is fixed by the locking screw 5. The measuring end connector 6 of the force gauge 4 extends forward to facilitate connection to the film clamp.
[0032] The adhesive film clamp is fixed to the measuring end connector 6 of the tension gauge 4 and connected to the front end of the encapsulated adhesive film 2. The adhesive film clamp includes a clamping bracket 7 and a clamping plate 8. The rear end of the clamping bracket 7 is fixedly connected to the measuring end connector 6, and the front end of the clamping bracket 7 cooperates with the clamping plate 8 to clamp the front end of the encapsulated adhesive film 2. The clamping bracket 7 is Z-shaped. The rear end of the clamping bracket 7 is fixed to the measuring end connector 6 by a first fixing screw 9. A second fixing screw 10 passing through the front end of the clamping bracket 7 and the clamping plate 8 secures them together.
[0033] The front end of the adhesive film clamp is close to the tempered glass 1, so that during the peeling process of the encapsulating adhesive film 2, the height of the connection part between the adhesive film clamp and the encapsulating adhesive film 2 from the upper surface of the tempered glass 1 is 0.5cm±0.1cm. This allows the encapsulating adhesive film 2 to be peeled off with a reverse force close to 180°, ensuring the stability of the force applied during the peeling process.
[0034] The peel test device in this embodiment mainly includes the following steps when in use:
[0035] 1. First, attach the encapsulating film 2 to the upper surface of the tempered glass 1 used in the photovoltaic module, and place the tempered glass 1 horizontally on the support platform. Then, use a cutter to cut the encapsulating film 2 into strips of a specified width, generally 1cm-3cm. Then, manually peel the front end of the encapsulating film 2 from the tempered glass 1.
[0036] 2. Place the moving device 3 on the upper surface of the tempered glass 1, and fix the front end of the encapsulating film 2 to the front end of the film clamp, that is, clamp it using the clamping bracket 7 and the clamping piece 8; control the moving device 3 to move backward along the length direction of the encapsulating film 2, thereby pulling the front end of the encapsulating film 2 backward to peel the encapsulating film 2 off the tempered glass 1. During the peeling process of the encapsulating film 2, the tension gauge 4 detects the tension during the peeling process of the encapsulating film 2.
[0037] The above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation; it is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom remain within the scope of this technology.
Claims
1. A peel test device for encapsulating adhesive film, characterized in that: Includes a moving device (3), a tension gauge (4), and a film clamp; The encapsulating film (2) is pasted on the upper surface of the tempered glass (1), and the encapsulating film (2) is cut into strips of a specified width; The moving device (3) can move along the surface of the tempered glass (1); the tension gauge (4) is fixed on the moving device (3) and moves with the moving device (3); the adhesive film clamp is fixed on the measuring end connector (6) of the tension gauge (4) and connected to the front end of the encapsulating adhesive film (2); When the moving device (3) moves backward along the length of the encapsulating film (2), the film clamp pulls the front end of the encapsulating film (2) backward to peel the encapsulating film (2) off the tempered glass (1). The tension gauge (4) detects the tension during the peeling process of the encapsulating film (2).
2. The peel testing device for encapsulating adhesive film according to claim 1, characterized in that: During the peeling process, the distance between the connection point of the adhesive film clamp and the encapsulating adhesive film (2) and the upper surface of the tempered glass (1) is 0.5cm ± 0.1cm.
3. The peel test device for encapsulating film according to claim 1, characterized in that: A groove is provided on the top of the moving device (3), and a clamping screw (5) is threaded onto the groove wall. The main body of the tension gauge (4) is installed in the groove and is clamped and fixed by the clamping screw (5).
4. The peel testing device for encapsulating film according to claim 1, characterized in that: The mobile device (3) is a remote-controlled mobile car with wheels at the bottom. The remote-controlled mobile car has a motor and a battery inside. The motor is connected to the wheels and the battery powers the motor.
5. The peel test apparatus for encapsulating film according to claim 1, characterized in that: The adhesive film clamp includes a clamping bracket (7) and a clamping piece (8). The rear end of the clamping bracket (7) is fixedly connected to the measuring end connector (6), and the front end of the clamping bracket (7) cooperates with the clamping piece (8) to clamp the front end of the encapsulated adhesive film (2).
6. The peel test apparatus for encapsulating adhesive film according to claim 5, characterized in that: The clamping bracket (7) is Z-shaped.
7. The peel test apparatus for encapsulating adhesive film according to claim 6, characterized in that: The rear end of the clamping bracket (7) is fixed to the measuring end connector (6) by the first fixing screw (9).
8. The peel test apparatus for encapsulating film according to claim 6, characterized in that: The second fixing screw (10) passing through the front end of the clamping bracket (7) and the clamping piece (8) will be fixedly connected together.