Photovoltaic module hot spot test box

Abstract

The utility model relates to the technical field of photovoltaic module performance detection equipment, and discloses a photovoltaic module hot spot test box which comprises a box body and a tester, a box door is hinged to the box body, a placement groove and a lifting frame are arranged in the box body, the placement groove is formed in the inner bottom of the box body, a mounting frame is arranged on the placement groove, a clamping piece is arranged on the mounting frame, and the lifting frame is arranged on the clamping piece. A placement groove is formed in the mounting frame, an overturning assembly is arranged in the placement groove, parallel sliding grooves are formed in the two opposite inner side walls in the placement groove, and the overturning assembly comprises driving blocks arranged in the sliding grooves in a sliding mode, rotating columns rotationally connected with the driving blocks and the mounting frame, connecting rods hinged to the mounting frame and the placement groove and driving parts; one end of each connecting rod is hinged to the middle of the side wall of the mounting frame, the other end of each connecting rod is hinged to the side wall, close to the end of the sliding groove, in the containing groove, and the tester is located over the photovoltaic module and mounted at the bottom of the lifting frame. The photovoltaic module hot spot test box has the effect of improving the test efficiency of the photovoltaic module hot spot test box.

Description

Technical Field

[0001] This application relates to the field of photovoltaic module performance testing equipment technology, and in particular to a photovoltaic module hot spot test box. Background Technology

[0002] With the growing global demand for renewable energy, solar photovoltaic (PV) power generation has rapidly developed as an important clean energy source. However, due to environmental factors (such as shading and pollution), PV modules are prone to localized overheating, known as the hot spot effect. This not only reduces the efficiency of PV modules but also leads to aging and even damage. Therefore, effectively detecting and preventing the hot spot effect in PV modules has become a key focus of current research.

[0003] Existing photovoltaic module hot spot detection technologies mainly involve using infrared cameras for non-contact temperature measurement and monitoring changes in voltage-current characteristic curves to determine the hot spot condition. However, these methods are typically costly, complex to operate, and difficult to automate. Therefore, there is a need to reduce the degree of manual intervention in photovoltaic module hot spot detection and to develop a device for long-term, stable online monitoring of photovoltaic module hot spots.

[0004] Chinese Patent No. CN221553221U discloses a photovoltaic module hot spot testing device, which includes a frame and a tester. The frame is provided with a placement platform and a lifting seat. The lifting seat is located above the placement platform. Several limiting rods are vertically connected to the lifting seat. The limiting rods pass through the frame and slide with the frame. The frame is provided with a lifting component that drives the lifting seat to move. The tester is installed on the lifting seat. The placement platform is used to place the photovoltaic module. The placement platform is provided with a clamping component for installing the photovoltaic module.

[0005] In the process of conducting spot testing on photovoltaic modules using the aforementioned hot spot testing device, when it is necessary to flip the photovoltaic modules for inspection, manual flipping is required. However, before manually flipping the photovoltaic modules, the light source used for testing must be turned off, and the temperature of the photovoltaic modules must be allowed to drop to a suitable level before contact with the modules can be made and the modules can be flipped. This significantly reduces the efficiency of hot spot testing of photovoltaic modules. Utility Model Content

[0006] To improve the testing efficiency of photovoltaic module hot spot test chambers, this application provides a photovoltaic module hot spot test chamber.

[0007] The photovoltaic module hot spot test chamber provided in this application adopts the following technical solution:

[0008] A photovoltaic module hot spot testing chamber includes a chamber body and a tester. The chamber body has a hinged door. The chamber body contains a placement slot and a lifting frame. The placement slot is located at the bottom inner side of the chamber body. A mounting frame is provided on the placement slot, and the mounting frame is provided with clamping components for mounting photovoltaic modules. A flipping component is provided in the placement slot to drive the mounting frame to flip. Parallel sliding grooves are provided on two opposite inner sidewalls of the placement slot. The flipping component includes a drive block slidably disposed in the sliding groove, a rotating column rotatably connecting the drive block and the end sidewall of the mounting frame, a connecting rod hinged between the mounting frame and the opposite sidewall of the placement slot, and a drive component to drive the drive block to slide. One connecting rod is provided for each sliding groove, and one end of each connecting rod is hinged to the middle of the sidewall of the mounting frame, and the other end is hinged to the sidewall of the placement slot near the end of the sliding groove. The tester is located directly above the photovoltaic module and is mounted on the bottom of the lifting frame.

[0009] By adopting the above technical solution, when the photovoltaic module needs to be flipped during the testing process, the driving component drives the driving block to slide within the groove. Under the action of the connecting rod, the sliding of the driving block drives the mounting frame to flip the photovoltaic module. The coordinated action of the driving block, rotating column, and connecting rod allows the mounting frame to flip smoothly and accurately, improving the safety and stability of the photovoltaic module during the flipping process. This enables the photovoltaic module hot spot test chamber to automatically complete the flipping action of the photovoltaic module without manual flipping, greatly improving testing efficiency.

[0010] Optionally, the driving component includes a screw that is rotatably disposed in the slide groove along the length of the slide groove and a reciprocating motor that drives the screw to rotate, and the driving block is screwed onto the screw through a threaded rotation.

[0011] By adopting the above technical solution, the driving component consists of a screw and a reciprocating motor. The screw rotates along the length of the slide groove, and the driving block is screwed onto the screw. This design allows the driving block to slide smoothly along the slide groove, thereby precisely rotating the mounting frame and the photovoltaic modules on it. Specifically, the forward and reverse rotation of the reciprocating motor controls the back-and-forth movement of the driving block, thus achieving automatic flipping of the photovoltaic modules without manual intervention, improving testing efficiency and safety.

[0012] Optionally, the mounting frame includes a receiving plate and a surrounding frame around the outer edge of the receiving plate. The photovoltaic module is inserted into the surrounding frame and overlaps the receiving plate. The clamping component includes a cover plate rotatably disposed on the side of the surrounding frame away from the receiving plate and a torsion spring sleeved on the pivot between the cover plate and the receiving plate. The torsion spring abuts against the cover plate and the receiving plate. When the torsion spring is in its natural state, the photovoltaic module is confined within the clamping space enclosed by the cover plate, the surrounding frame, and the receiving plate.

[0013] By adopting the above technical solution, the cover plate and torsion spring design in the clamping component enable the photovoltaic module to be quickly and reliably fixed in the mounting frame. When the torsion spring is in its natural state, the photovoltaic module is firmly limited in the clamping space formed by the cover plate, the frame and the receiving plate, which reduces the loosening or falling off of the photovoltaic module during the test and further improves the safety and reliability of the test.

[0014] Optionally, a limiting plate is rotatably provided on the side wall of the mounting frame perpendicular to the cover plate. When the photovoltaic module is limited within the clamping space enclosed by the cover plate, the frame, and the receiving plate, the limiting plate rotates to press the cover plate against the photovoltaic module.

[0015] By adopting the above technical solution, the limiting plate rotatably set on the side wall of the mounting frame can further press the cover plate against the photovoltaic module after the photovoltaic module is fixed by the cover plate, thereby ensuring that the photovoltaic module is more firmly fixed in the mounting frame and avoiding the photovoltaic module from loosening or falling off due to vibration or impact during the flipping process, thus further improving the reliability and safety of photovoltaic module hot spot testing.

[0016] Optionally, the lifting frame is arranged in a U-shape, and vertical guide grooves are provided on the side walls of the lifting frame adjacent to the door. A slider is slidably arranged in the guide groove and the slider is connected to the lifting frame. A lead screw is rotatably arranged in one of the guide grooves, and the slider is screwed onto the lead screw.

[0017] By adopting the above technical solution, the photovoltaic module hot spot test chamber achieves precise control and smooth movement of the lifting frame. The combination of guide groove and slider makes the lifting frame more stable and reliable during up and down movement. In particular, the threaded engagement of the lead screw and slider enables precise position adjustment, reducing the possibility of collision between the photovoltaic module and the tester during the flipping process, and improving the accuracy and reliability of the testing process.

[0018] Optionally, the top of the tester has two opposite insertion strips along its length, and the bottom wall of the lifting frame has an insertion groove. The end of the insertion groove extends to the side wall of the lifting frame facing the door. The insertion strips correspond one-to-one with the insertion grooves and are inserted into each other.

[0019] By adopting the above technical solution, the plug strips and plug slots correspond one-to-one and plug in to fit together, enabling the tester to be installed on the lifting frame quickly and accurately. This improves the efficiency of the tester's installation and disassembly, ensures the tester's position is stable and reliable during the testing process, and enhances the test accuracy and reliability.

[0020] Optionally, the tester is provided with a concealed handle on the side wall facing the door.

[0021] By adopting the above technical solution, the concealed handle design allows operators to easily and quickly pull out or push in the tester, thereby improving the ease of operation and work efficiency during the testing process. Specifically, the concealed handle design ensures the overall aesthetics of the tester when not in use, while providing a reliable grip point when manual operation is required, reducing operational inconvenience caused by the lack of a suitable handle.

[0022] Optionally, the door is equipped with an eye-protecting viewing window to facilitate operators' observation of the photovoltaic module status.

[0023] By adopting the above technical solution, the eye-protecting viewing window installed on the chamber door allows operators to observe the status of the photovoltaic modules in real time without opening the door, avoiding temperature fluctuations caused by frequent door opening and ensuring the continuity and stability of the testing process. Furthermore, the eye-protecting viewing window design also protects the operator's eyes, reducing potential visual stimulation from the light source inside the photovoltaic module hot spot testing chamber, thus improving work comfort and safety.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. When photovoltaic modules need to be flipped during testing, the driving component drives the driving block to slide within the groove. Under the action of the connecting rod, the sliding of the driving block drives the mounting frame, carrying the photovoltaic modules, to flip. The coordinated action of the driving block, rotating column, and connecting rod allows the mounting frame to flip smoothly and accurately, improving the safety and stability of the photovoltaic modules during the flipping process. This enables the photovoltaic module hot spot testing chamber to automatically complete the flipping action of the photovoltaic modules, eliminating the need for manual flipping and greatly improving testing efficiency.

[0026] 2. The drive unit consists of a screw and a reciprocating motor. The screw rotates along the length of the slide groove, and the drive block is threadedly mounted on the screw. This design allows the drive block to slide smoothly along the slide groove, thereby precisely flipping the mounting frame and the photovoltaic modules on it. Specifically, the forward and reverse rotation of the reciprocating motor controls the back-and-forth movement of the drive block, thus achieving automatic flipping of the photovoltaic modules without manual intervention, improving testing efficiency and safety.

[0027] 3. The cover plate and torsion spring design in the clamping components enable the photovoltaic modules to be quickly and reliably fixed in the mounting frame. When the torsion spring is in its natural state, the photovoltaic modules are firmly confined in the clamping space formed by the cover plate, the frame, and the receiving plate, reducing the loosening or falling off of the photovoltaic modules during the test and further improving the safety and reliability of the test. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0029] Figure 2 This is a schematic diagram illustrating the internal structure of the box in the embodiments of this application.

[0030] Figure 3 This is a cross-sectional view illustrating the connection relationship between the receiving plate and the frame in an embodiment of this application.

[0031] Figure 4 This is a schematic diagram of the connection relationship between the drive block and the rotating column in an embodiment of this application.

[0032] Explanation of reference numerals in the attached figures:

[0033] 01. Photovoltaic module; 1. Housing; 11. Light source; 12. Guide groove; 121. Lead screw; 13. Servo motor; 2. Tester; 21. Connector strip; 22. Concealed handle; 3. Door; 31. Controller; 32. Eye-protecting viewing window; 4. Placement groove; 41. Slide groove; 5. Lifting frame; 51. Connector groove; 52. Slider; 6. Mounting frame; 61. Support plate; 62. Enclosure frame; 7. Clamping component; 71. Cover plate; 72. Torsion spring; 8. Flipping component; 81. Drive block; 82. Rotating column; 83. Connecting rod; 84. Drive component; 841. Screw; 842. Reciprocating motor; 9. Limit plate. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0035] This application discloses a photovoltaic module hot spot test box.

[0036] Reference Figures 1 to 3 A photovoltaic module hot spot testing chamber includes a chamber body 1 and a tester 2. A door 3 is hinged to the chamber body 1, and a controller 31 and an eye-protecting viewing window 32 are fixedly installed on the door 3. A light source 11 is installed on the inner top wall of the chamber body 1. A placement slot 4 and a lifting frame 5 are provided inside the chamber body 1. The placement slot 4 is fixedly located at the inner bottom of the chamber body 1, and a mounting frame 6 is provided on the placement slot 4. The photovoltaic module 01 is installed in the mounting frame 6 via a clamping component 7. A flipping component 8 is provided inside the placement slot 4. The tester 2 is located directly above the photovoltaic module 01 and is installed on the bottom of the lifting frame 5.

[0037] Reference Figures 1 to 3 When the photovoltaic module 01 needs to be flipped during the testing process, the flipping component 8 drives the mounting frame 6 to flip the photovoltaic module 01. During this process, the lifting frame 5, driven by the controller 31, moves the tester 2 up and down synchronously. When the photovoltaic module 01 is flipped to a flat surface for testing, the lifting frame 5 moves the tester 2 down until the photovoltaic module 01 enters the testing range of the tester 2; during the flipping process of the photovoltaic module 01, the lifting frame 5 moves the tester 2 up to avoid the photovoltaic module 01 colliding with the tester 2.

[0038] Reference Figure 3 and Figure 4 The mounting frame 6 includes a receiving plate 61 and a surrounding frame 62. The surrounding frame 62 surrounds the outer ring of the receiving plate 61 and is integrally formed with the receiving plate 61. The photovoltaic module 01 is inserted into the surrounding frame 62 and overlaps the receiving plate 61. The clamping component 7 includes a cover plate 71 and a torsion spring 72. The cover plate 71 is rotatably mounted on the side wall of the surrounding frame 62 opposite to the receiving plate 61, and its two ends are flipped relative to each other along the length of the mounting frame 6. The torsion spring 72 is sleeved on the pivot between the cover plate 71 and the receiving plate 61 and abuts against the cover plate 71 and the receiving plate 61. When the torsion spring 72 is in its natural state, the photovoltaic module 01 is confined within the clamping space enclosed by the cover plate 71, the surrounding frame 62, and the receiving plate 61.

[0039] Reference Figure 3 and Figure 4 A limiting plate 9 is rotatably provided on the side wall of the mounting frame 6 perpendicular to the cover plate 71. One limiting plate 9 is provided at each end of the cover plate 71. When the photovoltaic module 01 is limited in the clamping space enclosed by the cover plate 71, the frame 62 and the receiving plate 61, the limiting plate 9 rotates to press the cover plate 71 against the photovoltaic module 01.

[0040] Reference Figure 2 and Figure 4 Parallel sliding grooves 41 are fixedly provided on two opposing inner sidewalls within the placement groove 4. The flipping assembly 8 includes a drive block 81, a rotating column 82, a connecting rod 83, and a drive component 84. One drive block 81 is slidably provided for each sliding groove 41. The rotating column 82 is rotatably connected to the end sidewall of the drive block 81 opposite to the mounting frame 6. One connecting rod 83 is provided for each sliding groove 41, with one end of each connecting rod 83 hinged to the middle of the sidewall of the mounting frame 6 and the other end hinged to the end sidewall of the placement groove 4 near the end of the sliding groove 41. The drive component 84 includes a screw 841 and a reciprocating motor 842. The screw 841 is rotatably provided within the sliding groove 41 along its length. The drive block 81 is screwed onto the screw 841. The reciprocating motor 842 is fixedly provided on the outer sidewall of the housing 1, and its output shaft rotatably passes through the sidewall of the housing 1 and is coaxially fixedly connected to the screw 841.

[0041] Reference Figure 2 The top of the tester 2 has two fixedly arranged connector strips 21 along its length. The bottom wall of the lifting frame 5 has a connector groove 51, the end of which extends to the side wall of the lifting frame 5 facing the door 3. The connector strips 21 and the connector grooves 51 correspond one-to-one and are inserted into each other. A concealed handle 22 is fixedly arranged on the side wall of the tester 2 facing the door 3.

[0042] Reference Figure 2 and Figure 3 The lifting frame 5 is arranged in a U-shape, and vertical guide grooves 12 are provided on the side walls of the lifting frame 5 and the box door 3. A slider 52 is slidably arranged in the guide groove 12. The slider 52 is integrally formed on the lifting frame 5. A lead screw 121 is rotatably arranged in one of the guide grooves 12. The slider 52 is screwed onto the lead screw 121 by a thread. A servo motor 13 is fixedly arranged on the top wall of the box body 1. The output shaft of the servo motor 13 rotatably passes through the top wall of the box body 1 and is coaxially fixedly connected to the lead screw 121.

[0043] The implementation principle of a photovoltaic module hot spot test box according to an embodiment of this application is as follows: When the photovoltaic module 01 needs to be flipped during the testing process, the controller 31 drives the drive block 81 to slide within the slide groove 41. Under the action of the connecting rod 83, the sliding of the drive block 81 drives the mounting frame 6 to flip the photovoltaic module 01. During this process, the lifting frame 5, driven by the controller 31, moves the tester 2 up and down synchronously. When the photovoltaic module 01 is flipped to a flat surface for testing, the lifting frame 5 moves the tester 2 down until the photovoltaic module 01 enters the testing range of the tester 2; during the flipping process of the photovoltaic module 01, the lifting frame 5 moves the tester 2 up to avoid the photovoltaic module 01 colliding with the tester 2.

[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A photovoltaic module hot spot test chamber, characterized in that... The tester includes a housing (1) and a tester (2). A door (3) is hinged to the housing (1). A placement slot (4) and a lifting frame (5) are provided inside the housing (1). The placement slot (4) is located at the bottom inner part of the housing (1). An installation frame (6) is provided on the placement slot (4), and a clamping component (7) for installing a photovoltaic module (01) is provided on the installation frame (6). A flipping component (8) for driving the installation frame (6) to flip is provided inside the placement slot (4). Parallel sliding grooves (41) are provided on two opposite inner sidewalls inside the placement slot (4). The flipping component (8) includes a component that is slidably disposed in the sliding groove (41). The device includes a drive block (81), a rotating column (82) that rotatably connects the drive block (81) to the end side wall of the mounting frame (6), a connecting rod (83) that is hinged between the opposite side walls of the mounting frame (6) and the placement groove (4), and a drive component (84) that drives the drive block (81) to slide. Each connecting rod (83) is provided for each slide groove (41), and one end of each connecting rod (83) is hinged to the middle position of the side wall of the mounting frame (6), and the other end is hinged to the side wall of the placement groove (4) near the end side wall of the slide groove (41). The tester (2) is located directly above the photovoltaic module (01) and is installed on the bottom of the lifting frame (5).

2. The photovoltaic module hot spot test chamber according to claim 1, characterized in that... The driving component (84) includes a screw (841) rotatably disposed in the slide groove (41) along the length direction of the slide groove (41) and a reciprocating motor (842) that drives the screw (841) to rotate. The driving block (81) is screwed onto the screw (841) by a threaded rotation.

3. A photovoltaic module hot spot test chamber according to claim 1, characterized in that... The mounting frame (6) includes a receiving plate (61) and a surrounding frame (62) surrounding the outer ring of the receiving plate (61). The photovoltaic module (01) is inserted into the surrounding frame (62) and overlaps the receiving plate (61). The clamping member (7) includes a cover plate (71) rotatably disposed on the side of the surrounding frame (62) away from the receiving plate (61) and a torsion spring (72) sleeved on the pivot between the cover plate (71) and the receiving plate (61). The torsion spring (72) abuts between the cover plate (71) and the receiving plate (61). When the torsion spring (72) is in its natural state, the photovoltaic module (01) is limited within the clamping space surrounded by the cover plate (71), the surrounding frame (62) and the receiving plate (61).

4. A photovoltaic module hot spot test chamber according to claim 3, characterized in that... The mounting frame (6) is rotatably provided with a limiting plate (9) on the side wall perpendicular to the cover plate (71). When the photovoltaic module (01) is limited within the clamping space enclosed by the cover plate (71), the frame (62) and the receiving plate (61), the limiting plate (9) rotates to press the cover plate (71) against the photovoltaic module (01).

5. A photovoltaic module hot spot test chamber according to claim 1, characterized in that... The lifting frame (5) is arranged in a U-shape, and vertical guide grooves (12) are provided on the side walls of the lifting frame (5) adjacent to the door (3). A slider (52) is slidably arranged in the guide groove (12). The slider (52) is connected to the lifting frame (5). A lead screw (121) is rotatably arranged in one of the guide grooves (12). The slider (52) is screwed onto the lead screw (121) by a threaded rotation.

6. A photovoltaic module hot spot test chamber according to claim 5, characterized in that... The top of the tester (2) has two opposite ends of the tester along its length direction. The bottom wall of the lifting frame (5) has a slot (51) with the end of the slot (51) extending to the side wall of the lifting frame (5) facing the door (3). The tester (21) and the slot (51) are in one-to-one correspondence and are plugged in.

7. A photovoltaic module hot spot test chamber according to claim 6, characterized in that... The tester (2) has a concealed handle (22) on the side wall facing the door (3).

8. A photovoltaic module hot spot test chamber according to claim 1, characterized in that... The door (3) is equipped with an eye-protecting viewing window (32) to facilitate operators to observe the status of the photovoltaic module (01).

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