Protective device for electric leakage test of photovoltaic polyester film

By introducing a buffer spring and vibration damping plate structure into the photovoltaic module leakage current testing device, combined with a transparent fixed cover and insulating materials, the problems of vibration impact and insufficient protection are solved, and more accurate and safer testing is achieved.

CN222356334UActive Publication Date: 2025-01-14ZHEJIANG COLLEGE OF ZHEJIANG UNIV OF TECHOLOGY
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Patent Information

Application Number
CN202420641702.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-31
Publication Date
2025-01-14
Estimated Expiration
2034-03-31

AI Technical Summary

Technical Problem

Existing photovoltaic module leakage current testing devices lack shock absorption structures, resulting in large errors in test results and insufficient protection capabilities.

Method used

A protective device comprising a buffer spring and a damping plate, combined with a transparent fixed cover and insulating material, was designed to reduce the impact of vibration and improve safety.

Benefits of technology

It effectively reduces the impact of vibration on test results, improves the accuracy and safety of testing, prevents electrical sparks from splashing, and protects test personnel.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a protection device for a photovoltaic polyester film electric leakage test, which comprises a fixed bottom plate, the top end of the fixed bottom plate is fixedly connected with a protection shell, the lower inner wall of the protection shell is fixedly connected with a supporting block, the top end of the supporting block is provided with a fixed groove, and the fixed groove is fixedly connected with the protection shell. The lower inner wall of the fixing groove is fixedly connected with a buffer spring, the buffer spring extends to the outer side of the supporting block, the top end of the buffer spring is fixedly connected with a buffer cushion block, the upper part of the buffer cushion block is fixedly connected with a test bench, the buffer spring is fixedly provided with a vibration reduction sheet, and the vibration reduction sheet is fixedly connected with the test bench. A plurality of irradiation lamps are fixedly connected to the inner side wall of the protection shell. The device is provided with a structure used for damping, the device is prevented from being influenced by external vibration in the testing process, testing is facilitated, meanwhile, the fixing cover plate is sealed through the fixing bolts, operation of the whole device is conducted far away from the protective shell, and the safety of the device is higher.
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Description

Technical Field

[0001] The utility model relates to the field of leakage testing, in particular to a protective device for leakage testing of photovoltaic polyester films. Background Art

[0002] In the field of photovoltaic power generation technology, photovoltaic modules may leak electricity due to various reasons during use, and leakage may lead to safety problems. Therefore, when using a photovoltaic module, it is necessary to conduct a leakage test on it.

[0003] When the leakage test is in progress, sometimes people walk outside, causing the device to vibrate to a certain extent. The existing protective device lacks a shock-absorbing structure, so the test will be affected by the vibration, causing errors in the test results. At the same time, the protection capability of the existing test device is insufficient. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, such as: the lack of a shock-absorbing structure, which makes the test affected by vibration and causes errors in the test results; at the same time, the protection ability of the existing test device is insufficient, and a protective device for photovoltaic polyester film leakage test is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A protective device for leakage testing of photovoltaic polyester film, comprising a fixed base plate, a protective shell fixedly connected to the top of the fixed base plate, a support block fixedly connected to the lower inner wall of the protective shell, a fixing groove opened at the top of the support block, a buffer spring fixedly connected to the lower inner wall of the fixing groove, the buffer spring extending to the outside of the support block, a buffer pad fixedly connected to the top of the buffer spring, a test bench fixedly connected to the top of the buffer pad, a vibration damping plate fixedly arranged on the buffer spring, and a plurality of irradiation lamps fixedly connected to the inner wall of the protective shell.

[0007] Preferably, a fixed cover plate is provided at the top of the protective shell, and the shape of the fixed cover plate corresponds to the protective shell. A plurality of connecting slots are provided at the top of the side wall of the protective shell. A connecting card block corresponding to each connecting slot is fixedly connected to the side wall of the fixed cover plate, and each connecting card block extends to the outside of the connecting slot. The fixed cover plate is made of a transparent plastic plate.

[0008] Preferably, a plurality of fixing plates are fixedly connected to the side walls of the protective shell, the position of each fixing plate corresponds to a connecting slot, each fixing plate is rotatably connected to a fixing screw, and the fixing screw is threadedly connected to the corresponding connecting block.

[0009] Preferably, a terminal is fixedly connected to the top of the test bench, a wiring port is opened on the side wall of the protective shell, the wiring port is connected to the corresponding terminal through a wire, and the wiring port is connected to the detection device.

[0010] Preferably, a control center is fixedly connected to the top of the fixed base plate, and the control center corresponds to each irradiation lamp.

[0011] Preferably, the protective housing and the test bench are both made of insulating materials.

[0012] Compared with the prior art, the beneficial effects of the utility model are: a structure for shock absorption is provided to prevent the equipment from being affected by external vibrations during the test, which is beneficial to the test; at the same time, the fixed cover is sealed by fixing bolts, and the overall device operation is carried out away from the protective casing, so the device is safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of a protective device for photovoltaic polyester film leakage testing proposed by the utility model;

[0014] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0015] Figure 3 This is a partial top view structural schematic diagram of a protective device for photovoltaic polyester film leakage testing proposed by the utility model.

[0016] In the figure: 1 fixed base plate, 2 control center, 3 protective shell, 4 fixed cover plate, 5 connecting card slot, 6 connecting card block, 7 fixed screw, 8 fixed plate, 9 test bench, 10 terminal, 11 irradiation lamp, 12 support block, 13 fixed slot, 14 buffer spring, 15 buffer pad. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] Reference Figure 1-Figure 3, a protective device for leakage test of photovoltaic polyester film, comprising a fixed base plate 1, a protective shell 3 is fixedly connected to the top of the fixed base plate 1, a support block 12 is fixedly connected to the lower inner wall of the protective shell 3, a fixing groove 13 is opened at the top of the support block 12, a buffer spring 14 is fixedly connected to the lower inner wall of the fixing groove 13, the buffer spring 14 extends to the outside of the support block 12, and a buffer pad 15 is fixedly connected to the top of the buffer spring 14, a test bench 9 is fixedly connected above the buffer pad 15, a vibration damping sheet is fixedly arranged on the buffer spring 14, and a plurality of irradiation lamps 11 are fixedly connected to the inner wall of the protective shell 3, the photovoltaic polyester film is set on the test bench 9, and the leakage of the photovoltaic polyester film under different light is tested by adjusting the irradiation lamp 11. At the same time, when someone walks by the experimental device, it will be subjected to a certain vibration. The buffer spring 14 and the vibration damping sheet can cooperate to achieve a buffering and shock-absorbing effect to avoid its influence on the test;

[0019] A fixed cover plate 4 is provided at the top of the protective shell 3. The shape of the fixed cover plate 4 corresponds to that of the protective shell 3. A plurality of connecting card slots 5 are provided at the top of the side wall of the protective shell 3. A connecting card block 6 corresponding to each connecting card slot 5 is fixedly connected to the side wall of the fixed cover plate 4. Each connecting card block 6 extends outward from the connecting card slot 5. The fixed cover plate 4 is made of a transparent plastic plate. The fixed cover plate 4 is set on the protective shell 3. The fixed cover plate 4 is clamped by the connecting card slots 5 and the connecting card blocks 6. At the same time, the transparent fixed cover plate 4 will not affect the observation of the test in the protective shell 3.

[0020] A plurality of fixing plates 8 are fixedly connected to the side wall of the protective housing 3, and the position of each fixing plate 8 corresponds to a connection slot 5, and each fixing plate 8 is rotatably connected to a fixing screw 7, which is threadedly connected to a corresponding connection block 6. The connection block 6 is fixed by the fixing screw 7, so that the fixing cover plate 4 can seal the protective housing 3 to prevent the electric spark generated by leakage from splashing out;

[0021] The top of the test bench 9 is fixedly connected with a terminal 10, and a wiring port is provided on the side wall of the protective shell 3. The wiring port is connected to the corresponding terminal 10 through a wire, and the wiring port is connected to the detection device. The photovoltaic polyester film is connected to the terminal 10, and the detection device is connected to the wiring port, so as to perform a leakage test on the photovoltaic polyester film;

[0022] The top of the fixed base plate 1 is fixedly connected with a control center 2, which corresponds to each irradiation lamp 11. Each irradiation lamp 11 is controlled by the control center 2 to detect the leakage of the photovoltaic polyester film under light, and the detection result will be displayed on the control center 2; the protective shell 3 and the test bench 9 are made of insulating materials to avoid electric shock.

[0023] In the utility model, when the device is in use, the photovoltaic polyester film is first set on the test bench 9, the photovoltaic polyester film and the terminal 10 are connected together, and then the detection device is connected to the wiring port, so as to perform a leakage test on the photovoltaic polyester film, and then the fixed cover plate 4 is set on the protective shell 3, and the fixed cover plate 4 is clamped by the connecting slot 5 and the connecting block 6. At the same time, the transparent fixed cover plate 4 will not affect the observation of the test in the protective shell 3, and the connecting block 6 is fixed by the fixing screw 7, so that the fixed cover plate 4 can seal the protective shell 3 to avoid the electric spark generated during leakage from splashing out, so as to protect the tester, and each irradiation lamp 11 is controlled by the control center 2, and the light intensity of the irradiation lamp 11 is adjusted to test the leakage of the photovoltaic polyester film under different lighting conditions, and the detection results will be displayed on the control center 2. At the same time, when someone walks by the experimental device, it will be subjected to a certain vibration, and the buffer spring 14 and the vibration damping plate can cooperate to achieve a buffering and shock-absorbing effect to avoid its influence on the test.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A protective device for photovoltaic polyester film leakage testing, comprising a fixed base plate (1), characterized in that: The top of the fixed base plate (1) is fixedly connected to a protective shell (3), the lower inner wall of the protective shell (3) is fixedly connected to a support block (12), the top of the support block (12) is provided with a fixing groove (13), the lower inner wall of the fixing groove (13) is fixedly connected to a buffer spring (14), the buffer spring (14) is arranged to extend to the outside of the support block (12), and the top of the buffer spring (14) is fixedly connected to a buffer pad (15), the upper part of the buffer pad (15) is fixedly connected to a test bench (9), a vibration damping sheet is fixedly arranged on the buffer spring (14), a plurality of irradiation lamps (11) are fixedly connected to the inner wall of the protective shell (3), and a fixed cover is arranged on the top of the protective shell (3). The fixing cover plate (4) has a shape corresponding to that of the protective shell (3), a plurality of connection slots (5) are provided at the top of the side wall of the protective shell (3), a connection block (6) corresponding to each connection slot (5) is fixedly connected to the side wall of the fixing cover plate (4), and each connection block (6) extends outward from the connection slot (5), the fixing cover plate (4) is made of a transparent plastic plate, a plurality of fixing plates (8) are fixedly connected to the side wall of the protective shell (3), the position of each fixing plate (8) corresponds to a connection slot (5), and each fixing plate (8) is rotatably connected to a fixing screw (7), and the fixing screw (7) is threadedly connected to the corresponding connection block (6).

2. A protective device for photovoltaic polyester film leakage test according to claim 1, characterized in that: A terminal post (10) is fixedly connected to the top of the test bench (9), a terminal opening is provided on the side wall of the protective housing (3), the terminal opening is connected to the corresponding terminal post (10) via a wire, and the terminal opening is connected to the detection device.

3. A protective device for photovoltaic polyester film leakage test according to claim 1, characterized in that: A control center (2) is fixedly connected to the top of the fixed base plate (1), and the control center (2) corresponds to each irradiation lamp (11).

4. A protective device for photovoltaic polyester film leakage test according to claim 1, characterized in that: The protective housing (3) and the test bench (9) are both made of insulating materials.