Wind lift-off test apparatus for photovoltaic modules

Abstract

The present application relates to photovoltaic panel testing technical field, and disclose photovoltaoltic module wind resistance test equipment, including frame, the side of frame is provided with mounting port, the inside of mounting port is fixed with wind pipe, wind pipe is L type structure, the air inlet of wind pipe in frame is upwards, the upper portion of frame is provided with installation component, for installing photovoltaic panel, installation component includes frame body, frame body is arranged in the upper portion of frame, the side of frame body is provided with a plurality of pressing plate, each pressing plate is L type structure, and the pressing plate is detachably arranged on frame body, the present application can complete photovoltaic panel body wind resistance and the dual test of connection structure stability, expand the test function while avoiding the resource waste of repeated building test platform, the overall scheme improves the test flexibility while giving consideration to the function integration and operation economy.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic panel testing technology, and more particularly to photovoltaic module wind resistance testing equipment. Background Technology

[0002] The photovoltaic panel wind resistance testing device is a specialized device used to simulate natural wind environment and evaluate the structural performance, stability and wind resistance of photovoltaic panels and their support systems under wind load.

[0003] Existing photovoltaic panel wind resistance testing devices generally suffer from large size, insufficient flexibility, and difficulty in movement. In order to meet the requirements of high-intensity wind load simulation, traditional devices often adopt large wind turbine arrays, heavy steel structure frames, and fixed wind tunnel structures, resulting in a large overall footprint and extremely high space requirements for laboratories or testing sites, which are difficult to accommodate in many small and medium-sized R&D institutions or outdoor temporary testing scenarios.

[0004] Therefore, it is necessary to design photovoltaic module wind uplift testing equipment to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a photovoltaic module wind uplift test equipment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A photovoltaic module wind uplift resistance testing equipment includes a base with an installation port on its side. A duct is fixed inside the installation port. The duct has an L-shaped structure, with the air outlet at one end of the duct inside the base facing upwards. An installation assembly is arranged above the base for installing photovoltaic panels. The installation assembly includes a frame arranged above the base. Several pressure plates are arranged on the side of the frame, each pressure plate having an L-shaped structure. The pressure plates are detachably mounted on the frame.

[0007] As a preferred embodiment of the present invention, the base has two mounting seats fixed on it, and the two mounting seats are arranged facing each other. Each mounting seat has a rotating shaft rotatably mounted on it. Both rotating shafts are fixedly connected to the frame. A gear is fixedly sleeved on one of the rotating shafts. The base has a moving component for driving the gear to rotate. A cylinder is mounted on the base.

[0008] As a preferred embodiment of the present invention, the moving component includes a first slide rail, the first slide rail is fixed on the base, a first slide block is slidably disposed on the first slide rail, a rack is fixed on the first slide block, the rack will mesh with a gear during the movement, and a first magnetic block is fixed at one end of the rack. When the cylinder is running, it drives the rack to move. During the movement of the rack, it meshes with the gear and drives the gear to rotate.

[0009] As a preferred embodiment of the present invention, a positioning disk is provided on one side of the gear, the positioning disk is fixedly sleeved on the rotating shaft where the gear is located, the positioning disk has a plurality of positioning holes, the base is provided with a positioning component, the telescopic end of the cylinder is fixed with a second magnetic block, and the second magnetic block is positioned directly opposite the first magnetic block, the telescopic end of the cylinder is fixedly sleeved with a fixing plate, and the base is provided with an air supply component.

[0010] As a preferred embodiment of the present invention, the positioning component includes a connecting frame, which is fixed to the side of the base. A first sealing cylinder is fixed on the connecting frame. An exhaust hole is provided on the outer peripheral surface of the first sealing cylinder. A first sliding plug is slidably connected inside the first sealing cylinder. A positioning rod is fixed on the side of the first sliding plug. The end of the positioning rod away from the first sliding plug extends to the outside of the first sealing cylinder and is inserted into one of the positioning ports.

[0011] As a preferred embodiment of the present invention, the magnetic poles of the first magnetic block and the second magnetic block are opposite poles.

[0012] As a preferred embodiment of the present invention, the air supply assembly includes a second slide rail, which is fixed to the base. A second slide block is slidably disposed on the second slide rail, and a second sealing cylinder is fixed on the second slide block. A second sliding plug is slidably connected to the inside of the second sealing cylinder. A push rod is fixed to the side of the second sliding plug. The end of the push rod away from the second sliding plug extends to the outside of the second sealing cylinder and is positioned opposite to the fixing plate. The second sliding plug and the second sealing cylinder are connected by a second spring. The second sealing cylinder and the base are connected by a tension spring. Two air pipes are connected to the second sealing cylinder. Each air pipe is equipped with a one-way valve, and the flow limiting directions of the two one-way valves are opposite.

[0013] As a preferred embodiment of the present invention, one of the one-way valves restricts gas to enter only the second sealing cylinder, and the other one-way valve restricts gas to flow out only the second sealing cylinder. The end of the gas pipe used for exhausting gas away from the second sealing cylinder is connected to the first sealing cylinder.

[0014] As a preferred embodiment of the present invention, the trachea is a flexible tube.

[0015] As a preferred embodiment of the present invention, a mounting bracket is fixed on the frame.

[0016] The present invention has the following beneficial effects: 1. The testing device proposed in this invention can simultaneously perform dual tests on the wind resistance strength of the photovoltaic panel body and the stability of the connection structure, which expands the testing function and avoids the waste of resources by repeatedly building a testing platform. The overall solution improves the testing flexibility while taking into account the functional integration and operational economy. In addition, the device has a small overall size and is easy to move flexibly as needed. 2. By using a gear-rack transmission mechanism and magnetic drive design, combined with the locking mechanism of the positioning plate and positioning rod, the installation angle of the photovoltaic panel can be flexibly adjusted and precisely fixed. When the cylinder is driven, the air supply component first releases the positioning constraint, allowing the frame to rotate freely. After the angle is adjusted to the correct position, the gas is slowly discharged, causing the positioning rod to automatically reset and re-lock the position of the photovoltaic panel. This design not only simulates the multi-angle wind scenario of the photovoltaic panel in actual use, but also avoids the error caused by shaking during the test, significantly improving the accuracy and reliability of the test results. 3. The entire angle adjustment process requires only one cylinder as a power source. Through mechanical linkages such as magnetic block adsorption, rack movement, gas compression and release, the steps of positioning release, angle adjustment, repositioning and cylinder reset are completed in sequence. This design avoids configuring a separate motor or cylinder for each action, simplifies the transmission system, and reduces the number of power sources and electrical control modules. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the photovoltaic module wind uplift resistance testing equipment proposed in this invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the photovoltaic module wind uplift resistance testing equipment proposed in this invention. Figure 2 ; Figure 3 This is a structural diagram of the installed components; Figure 4 This is a structural diagram of the positioning component; Figure 5 This is a cross-sectional view of the positioning component. Figure 6 This is a schematic diagram of the gas supply assembly. Figure 7 This is a cross-sectional view of the gas supply assembly.

[0018] In the diagram: 1. Base; 11. Mounting port; 2. Air duct; 3. Mounting seat; 31. Rotating shaft; 311. Gear; 41. Frame; 42. Pressure plate; 43. Mounting bracket; 51. Rack; 511. First magnet; 52. First slide rail; 53. First slide block; 61. Cylinder; 62. Second magnet; 63. Fixing plate; 71. Positioning plate; 711. Positioning port; 72. Connecting frame; 73. First sealing cylinder; 731. Exhaust port; 74. First sliding plug; 75. First spring; 76. Positioning rod; 81. Second sealing cylinder; 82. Air duct; 821. One-way valve; 83. Second sliding plug; 84. Second spring; 85. Push rod; 86. Second slide rail; 87. Second slide block; 88. Tension spring. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Example 1: The photovoltaic module wind uplift resistance testing equipment disclosed in this example is described below. Figure 1-3 The system includes a base 1, on which several casters are mounted for easy movement. A mounting port 11 is provided on the side of the base 1, and an air duct 2 is fixed inside the mounting port 11. The air duct 2 has an L-shaped structure, with the air outlet at one end inside the base 1 facing upwards. During testing, airflow enters the air duct 2 and blows upwards through it. An installation assembly is located above the base 1 for installing photovoltaic panels. The installation assembly includes a frame 41, which is positioned above the base 1. Several pressure plates 42 are arranged on the side of the frame 41, each with an L-shaped structure. The pressure plates 42 are detachably mounted on the frame 41. When installing the photovoltaic panels, the operator places the photovoltaic panels on the frame 41 and then fixes the pressure plates 42 one by one onto the frame 41, thus securing the photovoltaic panels. The airflow from the duct 2 can directly blow onto the photovoltaic panel body on the frame 41, thereby testing the wind resistance of the photovoltaic panel body. The frame 41 is fixed with a mounting bracket 43, which is adapted to the photovoltaic panel. During the test, the staff can also install the photovoltaic panel onto the mounting bracket 43, and then the duct 2 blows air onto the photovoltaic panel. In this case, the device can test the wind resistance of the connection position between the photovoltaic panel and the bracket. In summary, the device can simultaneously complete the dual test of the wind resistance of the photovoltaic panel body and the stability of the connection structure, which expands the testing function and avoids the waste of resources of repeatedly building a test platform. The overall solution improves the testing flexibility while taking into account the functional integration and operational economy. In addition, the overall size of the device is small, which makes it easy to move flexibly as needed.

[0021] Example 2: Based on Example 1, this example discloses a photovoltaic module wind uplift resistance testing equipment, such as... Figure 4-7 As shown, two mounting seats 3 are fixed on the base 1, and the two mounting seats 3 are arranged facing each other. A rotating shaft 31 is rotatably mounted on each mounting seat 3. Both rotating shafts 31 are fixedly connected to the frame 41. The arrangement of the two rotating shafts 31 allows the frame 41 to rotate relative to the base 1. A gear 311 is fixedly sleeved on one of the rotating shafts 31. A moving component is provided on the base 1. The moving component is used to drive the gear 311 to rotate. The moving component includes a first slide rail 52, which is fixed on the base 1. A first slide block 53 is slidably arranged on the first slide rail 52. A rack 51 is fixed on the first slide block 53. During the movement of the rack 51, it will mesh with the gear 311. A first magnetic block 511 is fixed to one end of the rack 51. When the rack 51 moves, it will mesh with the gear 311 and drive the gear 311 to rotate. When the gear 311 rotates, it drives the corresponding rotating shaft 31 to rotate, and finally makes the frame 41 rotate.

[0022] A positioning disk 71 is provided on one side of the gear 311. The positioning disk 71 is fixedly sleeved on the rotating shaft 31 where the gear 311 is located. The positioning disk 71 has several positioning holes 711. A positioning assembly is provided on the machine base 1. The positioning assembly includes a connecting frame 72, which is fixed to the side of the machine base 1. A first sealing cylinder 73 is fixed on the connecting frame 72. An exhaust hole 731 is provided on the outer circumferential surface of the first sealing cylinder 73. A first sliding plug 74 is slidably connected to the inside of the first sealing cylinder 73. A positioning rod 76 is fixed to the side of the first sliding plug 74. The end of the positioning rod 76 away from the first sliding plug 74 extends... The first sealing cylinder 73 is inserted into one of the positioning ports 711. The side of the first sealing cylinder 73 is provided with a clearance opening for the positioning rod 76. The positioning rod 76 passes through the clearance opening and is slidably connected to the clearance opening. The first sliding plug 74 is connected to the first sealing cylinder 73 by a first spring 75. A cylinder 61 is installed on the base 1. A second magnetic block 62 is fixed to the telescopic end of the cylinder 61, and the second magnetic block 62 is set directly opposite to the first magnetic block 511. The magnetic poles of the first magnetic block 511 and the second magnetic block 62 are opposite poles. A fixing plate 63 is fixedly sleeved on the telescopic end of the cylinder 61.

[0023] An air supply assembly is provided on the base 1. The air supply assembly includes a second slide rail 86, which is fixed to the base 1. A second slide block 87 is slidably mounted on the second slide rail 86. A second sealing cylinder 81 is fixed on the second slide block 87. A second sliding plug 83 is slidably connected to the inside of the second sealing cylinder 81. A push rod 85 is fixed to the side of the second sliding plug 83. The end of the push rod 85 away from the second sliding plug 83 extends to the outside of the second sealing cylinder 81 and is positioned directly opposite the fixing plate 63. A clearance opening for the push rod 85 is provided on the side of the second sealing cylinder 81. The push rod 85 passes through the clearance opening and is aligned with the clearance opening. The port is slidably connected, and the second sliding plug 83 is connected to the second sealing cylinder 81 by the second spring 84. The second sealing cylinder 81 is connected to the machine base 1 by the tension spring 88. Two air pipes 82 are connected to the second sealing cylinder 81, and each air pipe 82 is equipped with a one-way valve 821. The two one-way valves 821 have opposite flow restriction directions. One one-way valve 821 restricts gas to enter the second sealing cylinder 81, and the other one-way valve 821 restricts gas to flow out of the second sealing cylinder 81. The end of the air pipe 82 used for exhaust is connected to the first sealing cylinder 73.

[0024] When conducting wind resistance tests on photovoltaic panels, staff can adjust the arrangement angle of the photovoltaic panels to simulate actual usage conditions. Specifically, after installing the photovoltaic panels on the frame 41, the staff activates cylinder 61. When cylinder 61 operates, it moves the first magnetic block 511. Simultaneously, the fixing plate 63 moves accordingly. Before the first magnetic block 511 contacts the second magnetic block 62, the fixing plate 63 pushes the push rod 85, causing the push rod 85 to move the second sliding plug 83. As the second sliding plug 83 moves, it can force gas through the exhaust pipe 82 into the first sealing cylinder 73. After the gas enters the first sealing cylinder 73, it can push the first sliding plug 74 to move. When the first sliding plug 74 moves, it drives the positioning rod 76 to move until the positioning rod 76 moves from the corresponding positioning port. Once detached from 711 and freed from the constraint of the positioning rod 76, the positioning disk 71 and the corresponding rotating shaft 31 can rotate freely, allowing the frame 41 to rotate. Furthermore, when the second sliding plug 83 moves to its limit position, it will drive the second sealing cylinder 81 to move. When the second sealing cylinder 81 moves, the second slide rail 86 and the second sliding seat 87 provide a limit for it. The movable characteristic of the second sealing cylinder 81 can prevent the second sealing cylinder 81 from obstructing the smooth extension of the cylinder 61's telescopic end, thus avoiding motion interference. Next, the first magnetic block 511 will contact the second magnetic block 62 and push the rack 51 to move. When the rack 51 moves, it will mesh with the gear 311 and drive the gear 311 to rotate, ultimately causing the frame 41 to drive the photovoltaic panel to rotate.

[0025] After the photovoltaic panel is adjusted to a specific angle, cylinder 61 stops operating. The first sealing cylinder 73 has an exhaust port 731. During the gas supply phase, the speed at which gas enters the first sealing cylinder 73 is much greater than the speed at which gas exits through the exhaust port 731. This allows the gas to smoothly push the first sliding plug 74 to move. When the gas supply stops, the gas slowly exits through the exhaust port 731, causing the first sliding plug 74 to slowly reset under the action of the first spring 75. When the first sliding plug 74 resets, the positioning rod 76 also resets until it is inserted into the corresponding positioning port 711. Therefore, when the photovoltaic panel is adjusted to a specific angle, the positioning rod 76 will again provide positioning for the photovoltaic panel, preventing it from shaking or rotating during testing and ensuring the accuracy of the test results. It should be noted that when the photovoltaic panel is adjusted to a specific angle and the positioning rod 76 is inserted into the corresponding positioning port 711, the gas... When the telescopic end of cylinder 61 retracts, the gear 311 cannot rotate and the rack 51 cannot move because the positioning rod 76 has been inserted into the positioning port 711. Therefore, when the telescopic end of cylinder 61 retracts, the first magnetic block 511 and the second magnetic block 62 will separate. When the telescopic end of cylinder 61 is fully retracted, the fixing plate 63 will separate from the push rod 85. This allows the second sliding plug 83 to reset under the action of the second spring 84. During the reset process, the second sliding plug 83 can perform a suction action through the air pipe 82 used for suction, so that gas is supplied to the interior of the second sealing cylinder 81. In summary, the air supply action will be performed first before each adjustment of the photovoltaic panel angle, thereby releasing the positioning effect of the positioning rod 76 on the photovoltaic panel. This design can not only flexibly adjust the arrangement angle of the photovoltaic panel, but also ensure the stability of the photovoltaic panel during the test. The whole process only requires one cylinder 61 to achieve the effect, without the need to set up multiple power sources, and achieves the linkage effect.

[0026] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A photovoltaic module wind uplift resistance testing equipment, characterized in that, The device includes a base (1), on which an installation port (11) is provided on the side. A duct (2) is fixed inside the installation port (11). The duct (2) has an L-shaped structure. The air vent of the duct (2) at one end inside the base (1) faces upward. An installation assembly is provided above the base (1) for installing photovoltaic panels. The installation assembly includes a frame (41), which is arranged above the base (1). Several pressure plates (42) are arranged on the side of the frame (41). Each pressure plate (42) has an L-shaped structure and is detachably mounted on the frame (41).

2. The photovoltaic module wind uplift test equipment according to claim 1, characterized in that, Two mounting seats (3) are fixed on the base (1) and the two mounting seats (3) are arranged facing each other. A rotating shaft (31) is rotatably mounted on each mounting seat (3). Both rotating shafts (31) are fixedly connected to the frame (41). A gear (311) is fixedly sleeved on one of the rotating shafts (31). A moving component is provided on the base (1). The moving component is used to drive the gear (311) to rotate. A cylinder (61) is installed on the base (1).

3. The photovoltaic module wind uplift test equipment according to claim 2, characterized in that, The moving component includes a first slide rail (52), which is fixed on the base (1). A first slide block (53) is slidably disposed on the first slide rail (52). A rack (51) is fixed on the first slide block (53). The rack (51) will mesh with a gear (311) during movement. A first magnet (511) is fixed at one end of the rack (51). When the cylinder (61) is running, it drives the rack (51) to move. During the movement of the rack (51), it meshes with the gear (311) and drives the gear (311) to rotate.

4. The photovoltaic module wind uplift test equipment according to claim 3, characterized in that, A positioning disk (71) is provided on one side of the gear (311). The positioning disk (71) is fixedly sleeved on the shaft (31) where the gear (311) is located. The positioning disk (71) has several positioning holes (711). A positioning component is provided on the base (1). A second magnetic block (62) is fixed on the telescopic end of the cylinder (61), and the second magnetic block (62) is set directly opposite the first magnetic block (511). A fixing plate (63) is fixedly sleeved on the telescopic end of the cylinder (61). An air supply component is provided on the base (1).

5. The photovoltaic module wind uplift test equipment according to claim 4, characterized in that, The positioning assembly includes a connecting frame (72), which is fixed to the side of the base (1). A first sealing cylinder (73) is fixed on the connecting frame (72). An exhaust hole (731) is opened on the outer peripheral surface of the first sealing cylinder (73). A first sliding plug (74) is slidably connected inside the first sealing cylinder (73). A positioning rod (76) is fixed on the side of the first sliding plug (74). One end of the positioning rod (76) away from the first sliding plug (74) extends to the outside of the first sealing cylinder (73) and is inserted into one of the positioning ports (711).

6. The photovoltaic module wind uplift test equipment according to claim 4, characterized in that, The magnetic poles of the first magnetic block (511) and the second magnetic block (62) are opposite poles.

7. The photovoltaic module wind uplift test equipment according to claim 5, characterized in that, The air supply assembly includes a second slide rail (86), which is fixed on the base (1). A second slide block (87) is slidably disposed on the second slide rail (86). A second sealing cylinder (81) is fixed on the second slide block (87). A second sliding plug (83) is slidably connected to the inside of the second sealing cylinder (81). A push rod (85) is fixed on the side of the second sliding plug (83). One end of the push rod (85) away from the second sliding plug (83) extends to the outside of the second sealing cylinder (81) and is positioned opposite to the fixing plate (63). The second sliding plug (83) and the second sealing cylinder (81) are connected by a second spring (84). The second sealing cylinder (81) and the base (1) are connected by a tension spring (88). Two air pipes (82) are connected to the second sealing cylinder (81). Each air pipe (82) is equipped with a one-way valve (821). The flow limiting directions of the two one-way valves (821) are opposite.

8. The photovoltaic module wind uplift test equipment according to claim 7, characterized in that, One of the one-way valves (821) restricts gas to enter the second sealing cylinder (81), and the other one-way valve (821) restricts gas to flow out of the second sealing cylinder (81). The end of the gas pipe (82) used for exhaust is connected to the first sealing cylinder (73) away from the second sealing cylinder (81).

9. The photovoltaic module wind uplift test equipment according to claim 7, characterized in that, The trachea (82) is a flexible tube.

10. The photovoltaic module wind uplift test equipment according to claim 1, characterized in that, The frame (41) is fixed with a mounting bracket (43).

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