Turnover device for hot spot test of photovoltaic module

Abstract

The utility model discloses a turnover device for a hot spot test of a photovoltaic module, which comprises a main body bracket, a first driving assembly, a second driving assembly, a support frame, a first retainer and a second retainer, and is characterized in that the main body bracket is provided with a horizontal guide groove and a vertical guide groove; the supporting frame is fixedly connected with the second retainer, and the supporting frame and the second retainer are both erected in the horizontal guide groove; the first driving assembly is used for driving the first retainer to get close to or away from the second retainer; the second driving assembly is used for driving the supporting frame to move along the horizontal guide groove; and the horizontal guide groove and the vertical guide groove are communicated with each other, so that the second retainer can move between the horizontal guide groove and the vertical guide groove, and the overturning of the photovoltaic module is completed. According to the utility model, not only can the photovoltaic module be automatically clamped, but also the angle overturning of the photovoltaic module can be realized in a relatively small range, so that the front and back surfaces of the module can be conveniently pasted, the operation can be performed by one person, and the efficiency of a hot spot endurance test is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic component design, in particular to a flip device for hot spot testing of photovoltaic components. Background Art

[0002] The hot spot effect in photovoltaic modules occurs when shadows obscure a photovoltaic module's cells, effectively consuming the energy generated by other illuminated modules. This causes the shaded module to heat up. In severe cases, the module can explode due to excessive hot spot temperatures. Therefore, modules must undergo hot spot durability testing in the laboratory to ensure reliability.

[0003] Currently, when performing hot spot durability testing on modules, operators first attach a baffle to the front of the module, then attach thermocouples to corresponding or designated locations on the back of the module to monitor the temperature at each location. During the thermocouple attachment process, an operator must flip the module over in a steady-state environmental chamber, while another operator attaches the thermocouple. The module is then placed horizontally with the front facing up for the hot spot test. This method requires two operators working simultaneously and is time-consuming and labor-intensive. Utility Model Content

[0004] In order to solve the technical problems of complicated operation and waste of manpower in the hot spot test in the prior art, the utility model provides a flipping device for hot spot test of photovoltaic modules to solve the above problems.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a flipping device for hot spot testing of photovoltaic components, comprising a main support, a first drive assembly, a second drive assembly, and a support frame, a first retaining frame and a second retaining frame arranged in parallel and in sequence, the main support having a horizontal guide groove and a vertical guide groove; the photovoltaic component is clamped between the first retaining frame and the second retaining frame, the support frame is fixedly connected to the second retaining frame, and the support frame and the second retaining frame are both mounted in the horizontal guide groove; the first drive assembly is used to drive the first retaining frame to approach or move away from the second retaining frame; the second drive assembly is used to drive the support frame to move along the horizontal guide groove; the horizontal guide groove and the vertical guide groove are connected to each other, so that the second retaining frame can move between the horizontal guide groove and the vertical guide groove, thereby completing the flipping of the photovoltaic component.

[0006] Furthermore, the first driving assembly is one or more electric telescopic rods connecting the first retaining frame and the supporting frame.

[0007] Furthermore, the second drive assembly includes a stepper motor, a bevel gear set, a screw and a first slider. The stepper motor is fixed on the main bracket, the screw is rotatably installed on the main bracket, the first slider is threadedly engaged with the screw, and the two bevel gears in the bevel gear set are respectively fixed to the output end of the stepper motor and the screw, and the support frame is rotatably engaged with the first slider through a connecting shaft arranged perpendicular to the screw.

[0008] Furthermore, translation wheels are provided at both ends of the connecting shaft, and the translation wheels are located in the horizontal guide grooves.

[0009] Furthermore, the second driving assembly is located on one side of the support frame, and the other side of the support frame is slidably engaged with the slide rod through the second slider.

[0010] Furthermore, the support frame and the second retaining frame are connected by a connecting rod, and a support wheel supporting the connecting rod is installed on the main frame.

[0011] Furthermore, the main support includes a U-shaped frame and vertical rods located at both ends of the U-shaped frame, the U-shaped frame is perpendicular to the plane where the vertical rods are located, the horizontal guide grooves are located at the two arms of the U-shaped frame, and the vertical guide grooves are located on the two vertical rods.

[0012] Furthermore, one or more support rods are connected between the two arms of the U-shaped frame, and the support wheels are located on the support rods.

[0013] Furthermore, the first retaining frame is in sliding engagement with the connecting rod.

[0014] Furthermore, the horizontal guide groove passes through the end of the U-shaped frame.

[0015] The beneficial effects of the utility model are:

[0016] (1) The utility model can not only automatically clamp the photovoltaic modules, but also realize the angle flipping of the photovoltaic modules within a smaller range, thereby facilitating the pasting of the front and back sides of the modules. It can be operated by one person, thereby improving the efficiency of the hot spot durability test.

[0017] (2) The utility model realizes the clamping of the photovoltaic module and the movement of the entire structure respectively through two sets of driving components. Through the ingenious design of the connection structure between the second driving component and the support frame, the motion track of the second retaining frame can be changed to realize the flipping of the photovoltaic module. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of the flipping device for hot spot testing of photovoltaic modules according to the present invention;

[0020] Figure 2 This is a front view of the flip device for hot spot testing of photovoltaic modules according to the present invention;

[0021] Figure 3 This is a side view of the flip device for hot spot testing of photovoltaic modules according to the present invention;

[0022] Figure 4 This is a top view of the flipping device for hot spot testing of photovoltaic modules according to the present invention;

[0023] Figure 5 for Figure 4 Ⅰ-Ⅰ sectional view;

[0024] Figure 6 for Figure 4 Ⅱ-Ⅱ sectional view;

[0025] Figure 7 for Figure 2 A partial enlarged view of point A in the middle;

[0026] Figure 8 This is a schematic diagram of the flipping device for hot spot testing of photovoltaic modules according to the present invention before clamping the photovoltaic modules;

[0027] Figure 9 This is a schematic diagram of the photovoltaic module being flipped over by the flipping device for hot spot testing of the photovoltaic module according to the present invention.

[0028] In the figure, 1. main bracket; 101. horizontal guide groove; 102. vertical guide groove; 2. connecting rod; 3. motor support; 4. stepping motor; 5. screw; 6. first slider; 7. support frame; 701. translation wheel; 8. second slider; 9. slide rod; 10. support block; 11. support rod; 12. support wheel; 13. photovoltaic module; 14. second retaining frame; 141. steering wheel; 15. first retaining frame; 16. electric telescopic rod; 17. driven bevel gear; 18. driving bevel gear; 19. connecting shaft; 20. U-shaped frame; 21. vertical rod. DETAILED DESCRIPTION

[0029] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0030] Example 1

[0031] like Figures 1-4As shown, a flipping device for hot spot testing of photovoltaic modules includes a main frame 1, a first driving assembly, a second driving assembly, and a support frame 7, a first retaining frame 15 and a second retaining frame 14 arranged in parallel and in sequence. The main frame 1 has a horizontal guide groove 101 and a vertical guide groove 102; the photovoltaic module 13 is clamped between the first retaining frame 15 and the second retaining frame 14, the support frame 7 is fixedly connected to the second retaining frame 14, and the support frame 7 and the second retaining frame 14 are both mounted in the horizontal guide groove 101; the first driving assembly is used to drive the first retaining frame 15 to approach or move away from the second retaining frame 14, so that the first retaining frame 15 and the second retaining frame 14 loosen or clamp the photovoltaic module 13; the second driving assembly is used to drive the support frame 7 to move along the horizontal guide groove 101. Since the support frame 7 is fixed to the second retaining frame 14, the second retaining frame 14 and the support frame 7 move at the same time; the horizontal guide groove 101 and the vertical guide groove 102 are connected to each other, so that the second retaining frame 14 can move between the horizontal guide groove 101 and the vertical guide groove 102, thereby completing the flipping of the photovoltaic module 13. When the support frame 7 and the second retaining frame 14 both move in the horizontal guide groove 101 , the photovoltaic assembly 13 is in a horizontal state. When the second retaining frame 14 enters the vertical guide groove 102 , the photovoltaic assembly 13 flips over at a certain angle.

[0032] First drive component:

[0033] The first driving assembly is a linear driving structure, which can be one or more electric telescopic rods 16 connecting the first retaining frame 15 and the support frame 7, such as Figure 1 and Figure 4 As shown, the ends of the electric telescopic rod 16 are respectively fixed to the first retaining frame 15 and the support frame 7. Since the support frame 7 and the second retaining frame 14 are relatively fixed, the distance between the first retaining frame 15 and the support frame 7 can be adjusted to adjust the distance between the first retaining frame 15 and the second retaining frame 14. By arranging the electric telescopic rod 16 between the first retaining frame 15 and the support frame 7, an open area is formed between the first retaining frame 15 and the second retaining frame 14, on which the photovoltaic modules 13 can be placed.

[0034] Second drive assembly:

[0035] The second drive assembly is also a linear drive structure. Since the support frame 7 and the second retaining frame 14 need to be flipped as a whole, the second drive assembly cannot be connected by a simple electric telescopic rod 16. The second drive assembly in this embodiment includes a stepper motor 4, a bevel gear set, a screw 5 and a first slider 6. The stepper motor 4 is fixed to the main frame 1, and the screw 5 is rotatably mounted on the main frame 1. The first slider 6 is threadedly engaged with the screw 5. The two bevel gears in the bevel gear set are respectively fixed to the output end of the stepper motor 4 and the screw 5. The support frame 7 is rotatably engaged with the first slider 6 through a connecting shaft 19 arranged perpendicular to the screw 5. Figure 2、 Figure 4 、 Figure 6 and Figure 7 As shown, the stepper motor 4 is fixed to the surface of the main support 1 through the motor support 3, and the screw 5 can be installed on the main support 1 through a bearing, so that the screw 5 can only rotate and cannot move axially. The bevel gear set consists of an active bevel gear 18 and a driven bevel gear 17. The active bevel gear 18 is coaxially fixed to the output end of the stepper motor 4, and the driven bevel gear 17 is coaxially fixed to the screw 5. The connecting shaft 19 passes through the first slider 6 to inhibit the rotation of the first slider 6. When the screw 5 is driven to rotate by the stepper motor 4, the first slider 6 can move relative to the screw 5, thereby driving the support frame 7, the first retaining frame 15, and the second retaining frame 14 to move in translation together. The support frame 7 and the first slider 6 are in rotational coordination. When the second retaining frame 14 switches between the horizontal guide groove 101 and the vertical guide groove 102, the support frame 7 can rotate with it. The second drive assembly does not need to rotate with it and can still drive the support frame 7, the first retaining frame 15, and the second retaining frame 14 to move in translation together by pushing the support frame 7 horizontally.

[0036] Main bracket 1:

[0037] The main frame 1 serves as the mounting base for the other components. The main frame 1 includes a U-shaped frame 20 and vertical rods 21 at both ends of the U-shaped frame 20. The U-shaped frame 20 is perpendicular to the plane where the vertical rods 21 are located. The horizontal guide grooves 101 are located at the two arms of the U-shaped frame 20, and the vertical guide grooves 102 are located on the two vertical rods 21. Figure 1 As shown, the remaining moving parts are located in the space surrounded by the U-shaped frame 20, and the support frame 7 and the second retaining frame 14 are mounted between the two horizontal guide grooves 101. After the second retaining frame 14 moves to the end of the horizontal guide groove 101, it can enter the vertical guide groove 102. The main frame 1 in this embodiment has a simple structure, occupies a small space, and is low in weight.

[0038] In order to facilitate the insertion of the photovoltaic module 13 after the second retaining frame 14 is extended, the horizontal guide groove 101 preferably passes through the end of the U-shaped frame 20. Figure 1 As shown, the horizontal guide groove 101 passes through the two arm ends of the U-shaped frame 20, and the second drive component can push the second retaining frame 14 out of the horizontal guide groove 101. When the photovoltaic component 13 is installed, the second drive component is started in reverse to send the second retaining frame 14 into the horizontal guide groove 101. When it reaches the junction of the horizontal guide groove 101 and the vertical guide groove 102, the second retaining frame 14 is manually lifted up to enter the vertical guide groove 102. Then the second drive component pushes the support frame 7 to move toward the second retaining frame 14, so that the second retaining frame 14 can continue to move upward.

[0039] Example 2

[0040] In order to reduce the friction between the connecting shaft 19 and the horizontal guide groove 101 when the support frame 7 moves along the horizontal guide groove 101, as shown in FIG. Figure 3 and Figure 4 As shown, in this embodiment, translation wheels 701 are provided at both ends of the connecting shaft 19, and the translation wheels 701 are located in the horizontal guide groove 101. Figure 3 and Figure 4 As shown, the second retaining frame 14 is also equipped with a connecting shaft 19, and steering wheels 141 are provided at both ends of the connecting shaft 19 of the second retaining frame 14. The steering wheel 141 has the same structure as the translation wheel 701, but the movement trajectory is different, that is, the translation wheel 701 only moves in the horizontal guide groove 101, and the steering wheel 141 needs to complete the steering between the horizontal guide groove 101 and the vertical guide groove 102.

[0041] Example 3

[0042] Since the support frame 7, the first retaining frame 15 and the second retaining frame 14 are connected to form a large frame body, in order to ensure the stable movement of the frame body, the second driving component is set on one side of the support frame 7 in this embodiment, and the other side of the support frame 7 is slidably matched with the slide rod 9 through the second slider 8. Figure 5 As shown, the support frame 7 and the second slider 8 are also rotatably coupled, with the slide rod 9 and the screw rod 5 jointly supporting the frame body to ensure stable translation of the entire structure. One end of the slide rod 9 is fixed to the surface of the main frame 1, and the other end is fixed to the support block 10. The support block 10 is located in front of the second slider 8 and fixed to the main frame 1. At this time, the support block 10 not only fixes the slide rod 9, but also acts as a limiter for the second slider 8. That is, when the second slider 8 moves to the support block 10, the support frame 7 cannot move forward.

[0043] Example 4

[0044] Based on the above embodiments, Figure 4 As shown, the support frame 7 and the second retaining frame 14 are connected by a connecting rod 2. The main frame 1 is equipped with a support wheel 12 that supports the connecting rod 2. When the photovoltaic module 13 is installed between the first retaining frame 15 and the second retaining frame 14, the translation wheel 701 and the steering wheel 141 will be subject to greater pressure. The support wheel 12 can reduce the pressure on the translation wheel 701, the steering wheel 141 and the connecting shaft 19.

[0045] Preferably, one or more support rods 11 are connected between the two arms of the U-shaped frame 20 , and the support wheels 12 are located on the support rods 11 .

[0046] In order to reduce the load-bearing capacity of the electric telescopic rod 16 , the first retaining frame 15 is preferably slidably matched with the connecting rod 2 , and the connecting rod 2 can also provide a guide for the first retaining frame 15 .

[0047] How to do it:

[0048] S1: Start the stepper motor 4, which drives the driven bevel gear 17 through the active bevel gear 18, and the driven bevel gear 17 drives the first slider 6 through the screw rod 5, and the first slider 6 drives the support frame 7 to move, and the support frame 7 drives the electric telescopic rod 16, the connecting rod 2, the first retaining frame 15 and the second retaining frame 14 to extend outward along the horizontal guide groove 101 (such as Figure 8 As shown); Place the photovoltaic assembly 13 between the first holder 15 and the second holder 14, adjust the electric telescopic rod 16, clamp the photovoltaic assembly 13, fix the photovoltaic assembly 13, and then paste the baffle at the corresponding position on the front.

[0049] S2: Start the stepper motor 4 to make the support frame 7, the electric telescopic rod 16, the connecting rod 2, the first retaining frame 15, the second retaining frame 14 and the photovoltaic module 13 return along the horizontal guide groove 101 to the vertical guide groove 102. Lift the second retaining frame 14 lightly by hand and start the stepper motor 4 at the same time to make the steering wheel 141 enter the vertical guide groove 102 (as shown in FIG. Figure 9 As shown), adjust the photovoltaic module 13 to the appropriate position, stop the stepper motor 4, and stick a thermocouple at the corresponding position on the back of the module.

[0050] S3: Start the stepper motor 4 to make the second holder 14 return to the horizontal guide groove 101 along the vertical guide groove 102, and adjust the stepper motor 4 so that the photovoltaic module 13 is in a proper position (such as Figure 1 As shown), turn off the stepper motor 4, open the steady-state box, and perform a hot spot durability test; when it is necessary to perform a hot spot durability test on different parts of the component, repeat steps S1 and S2 to adjust the corresponding baffle positions and thermocouple positions. After the test is completed, take out the photovoltaic component 13, and return the support frame 7, the electric telescopic rod 16, the connecting rod 2, the first retaining frame 15, and the second retaining frame 14 to the horizontal guide groove 101.

[0051] The flipping device described in the present invention can flip the photovoltaic component 13 through translational movements in different directions in the stable box, taking up little space, and when the second retaining frame 14 enters the vertical guide groove 102 to flip the photovoltaic component 13, the photovoltaic component 13 is close to the position of the staff, making it convenient for the staff to paste the reverse side.

[0052] In the description of the present invention, it should be understood that the terms "vertical", "horizontal", "axial", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0053] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0054] In this specification, the schematic representations of the terms do not necessarily refer to the same embodiment. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments.

[0055] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A flipping device for hot spot testing of photovoltaic modules, characterized in that: include: A main body bracket, wherein the main body bracket has a horizontal guide groove and a vertical guide groove; A support frame, a first retaining frame, and a second retaining frame are arranged in parallel and in sequence, the photovoltaic assembly is clamped between the first retaining frame and the second retaining frame, the support frame is fixedly connected to the second retaining frame, and the support frame and the second retaining frame are both mounted in the horizontal guide groove; A first driving assembly, configured to drive the first retaining frame toward or away from the second retaining frame; A second driving assembly is used to drive the support frame to move along the horizontal guide groove; The horizontal guide groove and the vertical guide groove are connected to each other, so that the second retaining frame can move between the horizontal guide groove and the vertical guide groove, thereby completing the flipping of the photovoltaic component.

2. The photovoltaic module hot spot test flipping device according to claim 1, characterized in that: The first driving assembly is one or more electric telescopic rods connecting the first retaining frame and the supporting frame.

3. The photovoltaic module hot spot test flipping device according to claim 1, characterized in that: The second drive assembly includes a stepper motor, a bevel gear set, a screw and a first slider. The stepper motor is fixed on the main bracket, the screw is rotatably installed on the main bracket, the first slider is threadedly engaged with the screw, the two bevel gears in the bevel gear set are respectively fixed to the output end of the stepper motor and the screw, and the support frame is rotatably engaged with the first slider through a connecting shaft arranged perpendicular to the screw.

4. The photovoltaic module hot spot test flipping device according to claim 3, characterized in that: Translation wheels are provided at both ends of the connecting shaft, and the translation wheels are located in the horizontal guide groove.

5. The photovoltaic module hot spot test flipping device according to claim 3, characterized in that: The second driving assembly is located on one side of the support frame, and the other side of the support frame is slidably engaged with the slide rod through a second sliding block.

6. The photovoltaic module hot spot test flipping device according to claim 1, characterized in that: The support frame and the second retaining frame are connected via a connecting rod, and a supporting wheel supporting the connecting rod is installed on the main frame.

7. The photovoltaic module hot spot test flipping device according to claim 6, characterized in that: The main support includes a U-shaped frame and vertical rods at both ends of the U-shaped frame. The U-shaped frame is perpendicular to the plane where the vertical rods are located. The horizontal guide grooves are located at the two arms of the U-shaped frame, and the vertical guide grooves are located on the two vertical rods.

8. The photovoltaic module hot spot test flipping device according to claim 7, characterized in that: One or more support rods are connected between the two arms of the U-shaped frame, and the support wheels are located on the support rods.

9. The photovoltaic module hot spot test flipping device according to claim 6, characterized in that: The first retaining frame is in sliding engagement with the connecting rod.

10. The photovoltaic module hot spot test flipping device according to claim 7, characterized in that: The horizontal guide groove passes through the end of the U-shaped frame.

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