Air pressure type hail impact test device for photovoltaic module

Abstract

The utility model discloses an air pressure type hail impact test device for a photovoltaic module. The air pressure type hail impact test device comprises a bottom frame, a photovoltaic module mounting structure and an ice ball spraying structure, a first moving structure and a second moving structure are arranged on the bottom frame; the ice hockey spraying structure comprises a transverse moving assembly and an ice hockey emitting assembly, and the ice hockey emitting assembly is arranged on the transverse moving assembly so that the ice hockey emitting assembly can move on the transverse moving assembly; the ice hockey launching assembly comprises a high-pressure gas cylinder, launching guns of multiple sizes arranged at the bottom of a gas outlet of the high-pressure gas cylinder, launching pipes arranged at the bottoms of the launching guns and driving air cylinders arranged above the launching guns, and when ice hockeys are placed in the launching guns, the driving air cylinders drive the launching guns to be sealed; and under the action of the high-pressure gas cylinder, the ice balls are emitted from the emission gun and are emitted to a photovoltaic module arranged on the photovoltaic module mounting structure along the emission tube.

Description

Technical Field

[0001] The utility model relates to the technical field of testing devices, in particular to a pneumatic hail impact testing device for photovoltaic components. Background Art

[0002] The hail impact test is used to simulate the performance changes of photovoltaic modules after being impacted by hail for a long time outdoors, so as to detect the anti-hail performance of photovoltaic modules.

[0003] The pneumatic launching device is the core component of the pneumatic hail impact test device. Its power source is air, and an air storage device is required to store air and adjust the pressure.

[0004] The mechanical moving device is a PLC-controlled mechanical transmission device to change the moving position of the gun barrel, wherein the mechanical movement is realized by a stepper motor transmission method. The stepper motor has the advantages of fast and accurate positioning and can complete the positioning requirements in a very short time.

[0005] At present, mainstream hail impact test equipment can only test the impact of small diameter ice balls such as 25mm. There are few equipment that can be compatible with ice ball tests of 35mm, 45mm, 55mm, 65mm, and 75mm diameters. Conventional test equipment is not equipped with a high-pressure gas source generator, and cannot meet the corresponding impact velocity requirements for large diameter ice balls.

[0006] In view of the problems in the related art, the utility model provides a pneumatic hail impact test device for photovoltaic modules. Utility Model Content

[0007] The utility model aims to provide a pneumatic hail impact test device for photovoltaic modules in view of the defects of the prior art.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] A pneumatic hail impact test device for photovoltaic modules, comprising a bottom frame, a photovoltaic module mounting structure arranged on the bottom frame, and an ice ball ejection structure;

[0010] The bottom frame is provided with a first movable structure and a second movable structure adapted to the photovoltaic assembly mounting structure and the ice ball injection structure, so that the photovoltaic assembly mounting structure is movably connected to the bottom frame through the first movable structure, and the ice ball injection structure is movably connected to the ice ball injection structure through the second movable structure;

[0011] The ice ball ejection structure comprises a lateral moving assembly and an ice ball launching assembly, wherein the ice ball launching assembly is arranged on the lateral moving assembly so that the ice ball launching assembly moves on the lateral moving assembly;

[0012] The ice hockey launching assembly includes a high-pressure gas cylinder, launching guns of multiple sizes arranged at the bottom of the gas outlet of the high-pressure gas cylinder, a launching tube arranged at the bottom of the launching gun, and a driving cylinder arranged above the launching gun. When the ice hockey puck is placed in the launching gun, the driving cylinder drives the seal of the launching gun, so that under the action of the high-pressure gas cylinder, the ice hockey puck is launched from the launching gun along the launching tube to the photovoltaic module arranged on the photovoltaic module mounting structure.

[0013] Furthermore, the photovoltaic module mounting structure includes a fixed rod and a mounting plate, and the first movable structure includes a first slide rail and a first slider. The first slide rail is arranged at the top of the wide side and the long side of the bottom frame, and the first slider is arranged on the first slide rail and movably connected to the first slide rail. Both ends of the fixed rod are arranged on the first slide rail at the top of the long side of the bottom frame, and both ends of the mounting plate are arranged on the first slide rail at the top of the short side of the bottom frame, so that the fixed rod and the mounting plate can move along the first slide rail through the corresponding first slider.

[0014] Furthermore, the second moving structure includes a first transmission component, a second transmission component, a first servo motor, a first optical axis, and a second slider; the first servo motor is connected to the first transmission component, the first transmission component and the second transmission component are respectively arranged on the two side surfaces of the long side of the top of the bottom frame, the first optical axis is arranged on the side surface of the short side of the top of the bottom frame, and the first optical axis is also connected to one end of the first transmission component and the second transmission component, and a second slider is arranged on the top of the first transmission component and the second transmission component, and the second slider is connected to the ice ball injection structure, so that when the first servo motor drives the first transmission component to rotate, the first transmission component drives the first optical axis to rotate, and the first optical axis drives the second transmission component to rotate, thereby making the first transmission component and the second transmission component drive the second slider and the ice ball injection structure to move.

[0015] Furthermore, the lateral movement assembly includes a support frame, a third transmission assembly, a second slide rail, and a second servo motor. The second servo motor is connected to the third transmission assembly. Both ends of the third transmission assembly and both ends of the second slide rail are connected to both ends of the support frame. The ice hockey launching assembly is connected to the second slide rail and the third transmission assembly, so that the second servo motor drives the third transmission assembly to rotate, thereby driving the ice hockey launching assembly to move along the second slide rail.

[0016] Furthermore, a proximity switch is also provided on the support frame.

[0017] Furthermore, the ice hockey launching assembly also includes a support rod and a third slider. The support rod is fixedly mounted on the third transmission assembly. The third slider is disposed on the support rod, and the third slider is connected to the second slide rail so that when the third transmission assembly drives the support rod to move, the third slider moves along the second slide rail.

[0018] Furthermore, a launch gun cover is provided on the top of the launch gun, and when the piston rod of the driving cylinder abuts against the launch gun cover, the launch gun cover is sealed on the top of the launch gun.

[0019] Furthermore, the high-pressure gas cylinder is connected to a pressure sensor, an air intake valve, and an exhaust valve through a connecting pipe. The pressure sensor is arranged on the connecting pipe at the bottle mouth of the high-pressure gas cylinder, the air intake valve is arranged on the connecting pipe at the air intake of the high-pressure gas cylinder, and the exhaust valve is arranged on the connecting pipe at the exhaust of the high-pressure gas cylinder.

[0020] Furthermore, the transmitting tube is provided with a photoelectric sensor for measuring speed.

[0021] Furthermore, an air source generating structure is also provided in the bottom frame, and the air source generating structure includes a high-pressure air pump, a micro submersible pump, and a water tank. The micro submersible pump is arranged in the water tank, and one end of the micro submersible pump is connected to the water cooling interface of the high-pressure air pump, and the other end of the micro submersible pump is arranged in the water tank.

[0022] Compared with the prior art, the utility model proposes a switchable integrated pneumatic hail impact test device, which is not only equipped with a high-pressure gas source generating device but also a high-pressure energy storage device, and is portable and convenient; it can also support the impact test requirements of ice balls with 6 diameters, i.e., 25mm, 35mm, 45mm, 55mm, 65mm, and 75mm. It can also monitor the impact pressure of the ice ball and measure and calculate the speed, realize fully automatic testing and record the results, and achieve the purpose of one machine with multiple functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of a pneumatic hail impact test device for photovoltaic modules provided in Example 1;

[0024] Figure 2 is a schematic diagram of the bottom frame provided in Example 1;

[0025] Figure 3 is a schematic diagram of a bottom frame and a first moving structure provided in Embodiment 1;

[0026] Figure 4 is a schematic diagram of a first moving structure provided in Example 1;

[0027] Figure 5 is a schematic diagram of the bottom frame and the second moving structure provided in the first embodiment;

[0028] Figure 6 is a schematic diagram of a second mobile structure provided in Example 1;

[0029] Figure 7 is a schematic diagram of a second mobile structure provided in Example 1;

[0030] Figure 8 is a schematic diagram of the structure of the second moving structure part provided in Example 1;

[0031] Fig. 9 is a schematic diagram of the structure of the second moving structure part provided in Example 1;

[0032] Fig.10 It is a schematic diagram of the gas source generation structure provided in Example 1;

[0033] Fig.11 It is a schematic diagram of the ice ball ejection structure provided in the first embodiment;

[0034] Fig.12 is a schematic diagram of a lateral movement component provided in Example 1;

[0035] Fig.13 is a schematic diagram of a lateral movement component provided in Example 1;

[0036] Fig.14 is a partial structural diagram of a lateral movement component provided in Example 1;

[0037] Fig.15 is a partial structural diagram of a lateral movement component provided in Example 1;

[0038] Fig.16 is a schematic diagram of an ice hockey launching assembly provided in Embodiment 1;

[0039] Fig.17 is a schematic diagram of an ice hockey launching assembly provided in Embodiment 1;

[0040] Fig.18 is a cross-sectional schematic diagram of an ice ball launching assembly provided in the first embodiment;

[0041] Fig.19 It is a partial structural diagram of the ice hockey launching assembly provided in the first embodiment;

[0042] Fig. 20 It is a partial structural diagram of the ice hockey launching assembly provided in the first embodiment;

[0043] Fig.21 It is a partial structural diagram of the ice hockey launching assembly provided in the first embodiment;

[0044] Fig. 22 is a schematic diagram of an ice hockey launching assembly provided in Embodiment 1;

[0045] Fig.23 This is a schematic cross-sectional view of a portion of the structure of the ice hockey launch assembly provided in Example 1.

[0046] Among them, 1. bottom frame; 2. photovoltaic module installation structure; 21. fixing rod; 22. mounting plate; 3. ice ball ejection structure; 31. lateral movement assembly; 311. support frame; 312. third slide rail; 313. second servo motor; 314. third synchronous belt driving wheel; 315. third transmission belt; 316. proximity switch sensor; 32. ice ball ejection assembly; 321. support rod; 322. third slide block; 323. high pressure gas cylinder; 3231. exhaust valve; 3232. intake valve; 3233. pressure sensor; 3234. needle valve; 324. ejection gun; 3 25. Driving cylinder; 326. Launch gun cover; 327. Launch tube; 328. Clamping assembly; 329. First photoelectric sensor; 330. Second photoelectric sensor; 4. First moving structure; 41. First slide rail; 42. First slider; 5. Second moving structure; 51. Second slide rail; 52. Second slider; 53. First servo motor; 54. First optical axis; 55. First synchronous belt driving wheel; 56. First transmission belt; 57. Second synchronous belt driving wheel; 58. Second transmission belt 6. Air source generating structure; 61. High-pressure air pump; 62. Micro submersible pump; 63. Water tank. DETAILED DESCRIPTION

[0047] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0048] The utility model aims to provide a pneumatic hail impact test device for photovoltaic modules in view of the defects of the prior art.

[0049] Embodiment 1

[0050] This embodiment provides a pneumatic hail impact test device for photovoltaic modules, including a bottom frame 1, a photovoltaic module mounting structure 2, an ice ball injection structure 3, and an air source generating structure 6.

[0051] The bottom frame 1 is a rectangular frame formed by welding a plurality of profiles, so that the bottom frame 1 has two long sides and two short sides; a foot with a pulley is provided at the bottom of the bottom frame 1 to facilitate the movement of the frame.

[0052] A first movable structure 4 and a second movable structure 5 are also provided on the bottom frame 1 .

[0053] The first moving structure 4 includes a plurality of first slide rails 41 and a plurality of first slide blocks 42 .

[0054] First slide rails 41 are provided on the inner sides of the tops of the two long sides and the two short sides of the bottom frame 1. In this embodiment, a total of four first slide rails 41 are provided. Multiple first sliders 42 are provided on the first slide rails 41. In this embodiment, three first sliders 42 are provided on each of the first slide rails 41 arranged on the long sides, and two first sliders 42 are provided on each of the first slide rails 41 arranged on the short sides, so that each first slider 42 can slide on the corresponding first slide rail 41.

[0055] The second moving structure 5 includes a plurality of second slide rails 51 , a plurality of second slide blocks 52 , a first transmission assembly, a second transmission assembly, a first servo motor 53 , and a first optical axis 54 .

[0056] Second slide rails 51 are provided on the outer sides of the tops of the two long sides of the bottom frame 1 , and two second slide rails 51 are provided in total in this embodiment; a second sliding block 52 is provided on each second slide rail 51 , and two second sliding blocks are provided in total in this embodiment.

[0057] A first transmission assembly and a second transmission assembly are provided on the top of the sides of the two long sides of the bottom frame 1 .

[0058] The first transmission assembly includes four first synchronous belt driving wheels 55 and two first transmission belts 56. Specifically, the two first synchronous belt driving wheels 55 are arranged perpendicular to the long sides of the bottom frame 1, and one of the first transmission belts 56 is wound around the two first synchronous belt driving wheels 55. The first servo motor 53 is connected to the first first synchronous belt driving wheel 55 arranged near the bottom, and the first servo motor 53 is fixed to the profile of the bottom frame 1 by threaded connection; the first servo motor 53 drives the first first synchronous belt driving wheel 55 to rotate, and then the first first synchronous belt driving wheel 55 drives a first transmission belt 56 to rotate, and the first transmission belt 56 drives the second first synchronous belt driving wheel 55 to rotate.

[0059] The third first synchronous belt driving wheel 55 is fixedly connected with the second first synchronous belt driving wheel 55 by a coaxial connection. The third first synchronous belt driving wheel 55 is arranged at one end of the long side of the bottom frame 1. The fourth first synchronous belt driving wheel 55 is connected to a mounting plate by means of threads or the like. The mounting plate fixes the fourth first synchronous belt driving wheel 55 to the other end of the long side of the bottom frame 1 by means of threads or the like. Another first transmission belt 56 is wound around the third first synchronous belt driving wheel 55 and the fourth first synchronous belt driving wheel 55. The top of the second slider 55 is connected to a mounting plate by means of threads or the like. The mounting plate is also connected to another first transmission belt 56 by means of threads or the like, so that when the second first synchronous belt driving wheel 55 rotates, the third first synchronous belt driving wheel 55 also rotates. The third first synchronous belt driving wheel 55 drives the other first transmission belt 56 to rotate, and the other first transmission belt 56 drives the fourth first synchronous belt driving wheel 55 to rotate, thereby causing the second slider 55 to slide along the second slide rail 51. It should be noted that the specific connection and rotation of the first synchronous belt driving wheel 55 and the first transmission belt 56 can be achieved by using existing technologies, and will not be described in detail in this embodiment.

[0060] The second transmission assembly includes two second synchronous belt driving wheels 57 and one second transmission belt 58; specifically, the two second synchronous belt driving wheels 57 are respectively arranged at the two ends of the other long side surface, and the second transmission belt 58 is wound around the two second synchronous belt driving wheels 57. Another second slider 52 is provided with a mounting plate by means of threads or the like. The mounting plate is fixedly connected to the second transmission belt 58 by means of threads or the like, so that when the second synchronous belt driving wheel 57 rotates, the second transmission belt 58 will be driven to rotate, thereby driving the second slider 52 and the mounting plate to slide along the corresponding second slide rail 51.

[0061] A third first synchronous belt driving wheel 55 and a second synchronous belt driving wheel 57 are on the same side, and a first optical axis 54 is provided on a short side of the bottom frame 1. The first optical axis 54 can be fixed to the side of the short side of the bottom frame 1 through a bearing structure, one end of the first optical axis 54 is fixedly connected to the rotating shaft of the third first synchronous belt driving wheel 55 at a corresponding position, and the other end of the first optical axis 54 is fixedly connected to the rotating shaft of the second synchronous belt driving wheel 57 at a corresponding position, so that when the third first synchronous belt driving wheel 55 rotates, the first optical axis 54 is driven to rotate, and the first optical axis 54 drives the second synchronous belt driving wheel 57 to rotate.

[0062] In this embodiment, a plurality of proximity switch sensors (three in this embodiment) are further provided on the side surfaces of the long sides of the bottom frame for detecting the sliding position of the second slider 52 .

[0063] The photovoltaic assembly mounting structure 2 includes a plurality of fixing rods 21 and a plurality of mounting plates 22 .

[0064] The two ends of the fixing plate 21 are respectively connected to the first slider 42 disposed at the top of the long side of the bottom frame 1 by means of threads or the like, and this embodiment is provided with three fixing rods 21; the two ends of the mounting plate 22 are respectively connected to the first slider 42 disposed at the top of the short side of the bottom frame 1 by means of threads or the like, and this embodiment is provided with two fixing rods 21; so that the first slider 41 can drive the fixing rod 21 and the mounting plate 22 connected thereto to move, and then the distance between each fixing rod 21 and the distance between each mounting plate 22 can be adjusted, and then photovoltaic modules of different sizes can be adapted, so that the photovoltaic modules can be stably installed on the photovoltaic module mounting structure 2. The photovoltaic module mounting structure 2 of this embodiment can be moved to the target by manual means.

[0065] The ice ball ejection structure 3 includes a lateral moving assembly 31 and an ice ball launching assembly 32 ; the ice ball launching assembly 32 is disposed on the lateral moving assembly 31 so that the ice ball launching assembly 32 moves on the lateral moving assembly 31 .

[0066] The transverse moving assembly 31 includes a support frame 311 , a third transmission assembly, a third slide rail 312 , and a second servo motor 313 . The third transmission assembly includes four third synchronous belt driving wheels 314 and two third transmission belts 315 .

[0067] The support frame 311 is composed of two vertical profiles and two horizontal profiles, and the third slide rail 312 is fixedly installed on the same side of the two horizontal profiles by means of threads or the like. The two ends of one horizontal profile are fixedly installed with one end of the two vertical profiles by means of threads or the like, and the two ends of the other horizontal profile are fixedly installed with the two vertical profiles near the middle by means of threads or the like. The other ends of the two vertical profiles are fixedly installed on the mounting plate at the top of the second slider 52 through the triangular support frame and by means of threaded connection or the like, so that the second slider 52 drives the support frame 311 to slide along the direction of the second slide rail 51.

[0068] The second servo motor 313 is arranged on a vertical profile between two horizontal profiles, and the second servo motor 313 is connected to a mounting plate by threads, and the mounting plate is fixedly mounted on the vertical profile by threads or other means. The output shaft of the second servo motor 313 is connected to a third synchronous belt driving wheel 314, and a third transmission belt 315 is wrapped around the third synchronous belt driving wheel 314. A second third synchronous belt driving wheel 314 is provided at the other end of the third transmission belt 315, so that the second servo motor 313 drives the first third synchronous belt driving wheel 314 to rotate, and then the first third synchronous belt driving wheel 314 drives a third transmission belt 315 to rotate, and the third transmission belt 315 drives the second third synchronous belt driving wheel 314 to rotate.

[0069] The rotation axis of the third third synchronous belt driving wheel 314 is coaxial with the rotation axis of the second third synchronous belt driving wheel 314, and the third third synchronous belt driving wheel 314 is fixedly connected to a mounting plate by means of threads or the like, and the mounting plate is fixedly installed on the vertical profile by means of threads or the like, and the fourth third synchronous belt driving wheel 314 is fixedly connected to a mounting plate by means of threads or the like, and the mounting plate is fixedly installed on another vertical profile at a corresponding position by means of threads or the like, another third transmission belt 315 is wound around the third third synchronous belt driving wheel 314 and the fourth third synchronous belt driving wheel 314, and the ice hockey launching assembly 32 is fixedly installed on another third transmission belt 315 and the third slide rail 312; so that when the second third synchronous belt driving wheel 314 rotates, the third third synchronous belt driving wheel 314 is driven to rotate, when the third third synchronous belt driving wheel 314 rotates, the third transmission belt 315 is driven to rotate, and when the third transmission belt 315 rotates, the fourth third synchronous belt driving wheel 314 is driven to rotate, thereby driving the ice hockey launching assembly 32 to slide along the third slide rail 312.

[0070] In this embodiment, a plurality of proximity switch sensors 316 (three in this embodiment) are disposed on one of the third slide rails 312 to detect the position of the ice ball launching assembly 32 .

[0071] It should be noted that the proximity switch sensor involved in this embodiment can be implemented by using an existing proximity switch, which will not be described in detail in this embodiment.

[0072] The ice hockey launching assembly 32 includes a support rod 321 , a third slider 322 , a high-pressure gas cylinder 323 , launching guns 324 of multiple sizes, a driving cylinder 325 , a launching gun cover 326 , and a launching tube 327 .

[0073] The support rod 321 is an aluminum profile, and a mounting plate is installed on one side of the support rod 321 and at a position corresponding to the third transmission belt 315 by means of threads or the like, and the mounting plate is fixedly connected to the third transmission belt 315 by means of threads, clamping or the like; a third slider 322 is fixedly installed on one side of the support rod 321 and at a position corresponding to the third slide rail 312 by means of threads or the like, so that the third slider 322 is clamped on the third slide rail 312, and then the third slider 322 of the support rod 321 is driven to slide along the third slide rail 312 when the third transmission belt 315 rotates.

[0074] The top of the support rod 321 is provided with a mounting plate for mounting the driving cylinder 325 by means of threads or the like, and a mounting opening matched with the piston rod of the driving cylinder 325 is opened on the mounting plate so that the piston rod of the driving cylinder 325 can pass through the mounting opening, and the cylinder body of the driving cylinder 325 is fixedly mounted on the top of the mounting plate by means of threads or the like.

[0075] A launch gun cover 326 is provided below the piston rod of the driving cylinder 325, and a clamping assembly 328 is provided on the launch gun cover 326. The clamping assembly 328 includes a clamping plate, a fixing plate, and a supporting plate. The bottom of the fixing plate is fixedly connected to the tops of both sides of the clamping plate by means of threads or the like, and one side of the fixing plate is clamped in the sliding groove on the side of the supporting rod 321, and the top of the fixing plate is fixedly connected to the supporting plate by means of threads or the like; a downward pressing hole adapted to the piston rod of the driving cylinder 325 is provided on the fixing plate, so that when the piston rod of the driving cylinder 325 moves downward, the piston rod passes through / or abuts against the downward pressing hole, thereby driving the entire clamping assembly 328 to move downward, thereby achieving the clamping of the launch gun cover 326; after the above-mentioned movement is completed, the clamping assembly 328 is restored to its original position by the driving cylinder 325 or manually.

[0076] The launch gun 324 is a cylindrical structure with openings at the top and bottom and a hollow interior. The launch gun cover 326 is disposed on the top of the launch gun 324 so that the launch gun cover 326 can cover the launch gun 324, thereby sealing the launch gun. The launch gun includes launch guns with internal diameters of 25mm, 35mm, 45mm, 55mm, 65mm, and 75mm, which can be sequentially sleeved inside during installation. This embodiment takes launch guns of 35mm, 55mm, and 75mm as examples for explanation. A 55mm launch gun is sleeved outside the 35mm launch gun, and a 75mm launch gun is sleeved outside the 55mm launch gun, thereby replacing ice balls of different sizes according to test requirements.

[0077] A launching tube 327 is sleeved on the outer side of the launching gun 324 near the bottom, and a first fixing plate is fixedly sleeved on the top of the launching tube 327 and the outside of the launching gun 324 by means of gluing or the like, and the first fixing plate is fixedly installed on the support rod 321 through a mounting plate and a threaded connection, so that the launching gun 324 is connected to the support rod 321 through the first fixing plate; a second fixing plate is fixedly sleeved on the outside of the launching tube 327 near the top and the bottom by means of gluing or the like, and the second fixing plate is fixedly installed on the support rod 321 through a mounting plate and a threaded connection, so that the launching tube 327 is connected to the support rod 321 through the first fixing plate; in this embodiment, the first fixing plate, the second fixing plate and the launching tube 327 can all be made of glass material, which makes it easy to observe the ice ball launched from the launching gun 324.

[0078] A first photoelectric sensor 329 is provided near the top of the launch tube 327, and a second photoelectric sensor 330 is provided near the bottom of the launch tube 327, so as to detect the time when the ice ball passes through the first photoelectric sensor 329 and the second photoelectric sensor 330, and calculate the instantaneous speed of the ice ball according to the distance between the first photoelectric sensor 329 and the second photoelectric sensor 330.

[0079] The high-pressure gas cylinder 323 is connected with a DN15 external thread direct connector, an elbow, an exhaust valve 3231, an intake valve 3232, a pressure sensor 3233, and a needle valve 3234.

[0080] The first DN15 external thread direct connector is connected to the second DN15 external thread direct connector at the bottle mouth of the high-pressure gas cylinder 323, the second DN15 external thread direct connector is connected to the third DN15 external thread direct connector, the third DN15 external thread direct connector is connected to one end of the bent pipe, the other end of the bent pipe is connected to the fourth DN15 external thread direct connector, and the other end of the fourth DN15 external thread direct connector is connected to external compressed air, etc.; the first DN15 external thread direct connector is provided with an opening at the top to enable the pressure sensor 3233 to be installed at the opening by welding or the like, the third DN15 external thread direct connector is provided with an opening at the top to enable the needle valve 3234 to be installed at the opening by welding or the like, and the fourth DN15 external thread direct connector is provided with an opening at the top to enable the intake valve 3232 to be installed at the opening by welding or the like.

[0081] An opening is provided on the side of the second DN15 male thread direct connector so that the fifth DN15 male thread direct connector can be installed at the opening, the fifth DN15 male thread direct connector is connected to one end of the bent pipe, the other end of the bent pipe is connected to the sixth DN15 male thread direct connector, and the sixth DN15 male thread direct connector is connected to the seventh DN15 male thread direct connector; an opening is provided on the side of the sixth DN15 male thread direct connector so that the exhaust valve 3231 can be installed at the opening by welding or the like.

[0082] An opening for passing one end of the seventh DN15 male thread direct connector is provided at the corresponding positions of the clamping plate of the clamping assembly 328 and the launching gun cover 326, so that the seventh DN15 male thread direct connector can pass through the opening and then enter the launching gun 324, so that the gas in the high-pressure gas cylinder 323 can enter the launching gun 324 to realize the launching of the ice hockey.

[0083] In this embodiment, the air inlet valve 3232 is opened to allow the external compressed air to pressurize the high-pressure gas cylinder 323 to a preset pressure. At this time, the pressure sensor 3233 will detect the pressure in the high-pressure gas cylinder 323 in real time. After reaching the preset pressure, the air inlet valve 3232 is closed. When it is necessary to launch the ice ball placed in the launch gun 324, the gas pressure in the high-pressure gas cylinder 323 enters the launch gun 324 based on the needle valve 3234, thereby realizing the launch of the ice ball. After the launch is completed, the exhaust can be achieved through the exhaust valve 3231. The above-mentioned specific principles can be implemented according to the existing technology, and this embodiment will not be elaborated in detail.

[0084] The air source generating structure 6 is fixedly installed on the side of the bottom frame 1 close to the bottom by means of a fixing plate, i.e., a threaded connection, etc. The air source generating structure 6 includes a high-pressure air pump 61, a micro submersible pump 62, and a water tank 63. The micro submersible pump 62 is arranged in the water tank, and one end of the micro submersible pump 62 is connected to the water cooling interface of the high-pressure air pump 61 through a hose. The other end of the micro submersible pump 62 is arranged in the water tank through a hose to realize the water cooling circulation of the high-pressure air pump 61. The power supply of the micro submersible pump 62 is connected to the power supply of the external device. After the device is turned on, the micro submersible pump 62 keeps running until the power supply of the device is turned off.

[0085] It should be noted that the proximity switch sensor, servo motor, drive cylinder, photoelectric sensor, etc. involved in this embodiment are all connected to an external PLC and an external power supply device to control the operation of the above-mentioned devices. The specific control method can adopt the existing technology, and this embodiment will not go into details.

[0086] The specific method of using the pneumatic hail impact test device for photovoltaic modules of this embodiment is as follows:

[0087] The gas source generating structure 6 provides a gas source of 0 to 30 MPa for the entire device.

[0088] The user moves the photovoltaic module mounting structure 2 to a suitable position and installs the photovoltaic module on the photovoltaic module mounting structure 2; in the initial state, the launch gun cover 326 does not cover the launch gun 324. At this time, the pressure in the high-pressure gas cylinder 323 is pressurized to a preset pressure through external compressed air, and the required ice ball (such as a 25mm ice ball) is taken out of the refrigerator and placed in the launch gun 324. The piston rod of the driving cylinder 325 is pressed down through the PLC control, so that it drives the clamping assembly 328 and the launch gun cover 326 to be pressed down, and then the launch gun cover 326 is covered on the launch gun 324, so that the launch gun 324 is sealed.

[0089] Then, the first servo motor 53 is controlled by an external PLC to move, so that the first servo motor 53 drives the second moving structure to move, thereby driving the ice ball ejection structure 3 to move to the target position. Then, the PLC controls the second servo motor 313, so that the second servo motor 313 drives the ice ball ejection assembly 32 to move laterally on the lateral moving assembly 31, and then moves to the final target position.

[0090] Finally, the air in the high-pressure gas cylinder 323 drives the ice ball to be launched from the launching gun 324 through the needle valve 3234, and is set on the photovoltaic component along the launching tube 327. At this time, the first photoelectric sensor 329 and the second photoelectric sensor 330 set on the launching tube 327 will record the time when the ice ball passes, thereby realizing the test of the photovoltaic component.

[0091] The utility model proposes a switchable integrated pneumatic hail impact test device, which is not only equipped with a high-pressure gas source generating device but also a high-pressure energy storage device, and is portable and convenient; it can also support the impact test requirements of ice balls with 6 diameters, i.e., 25mm, 35mm, 45mm, 55mm, 65mm, and 75mm. It can also monitor the impact pressure of the ice ball and measure and calculate the speed, thus realizing fully automatic testing and recording the results, and achieving the purpose of one machine with multiple functions.

[0092] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A pneumatic hail impact test device for photovoltaic modules, characterized in that: It includes a bottom frame, a photovoltaic module mounting structure arranged on the bottom frame, and an ice ball injection structure; The bottom frame is provided with a first movable structure and a second movable structure adapted to the photovoltaic assembly mounting structure and the ice ball injection structure, so that the photovoltaic assembly mounting structure is movably connected to the bottom frame through the first movable structure, and the ice ball injection structure is movably connected to the ice ball injection structure through the second movable structure; The ice ball ejection structure comprises a lateral moving assembly and an ice ball launching assembly, wherein the ice ball launching assembly is arranged on the lateral moving assembly so that the ice ball launching assembly moves on the lateral moving assembly; The ice hockey launching assembly includes a high-pressure gas cylinder, launching guns of multiple sizes arranged at the bottom of the gas outlet of the high-pressure gas cylinder, a launching tube arranged at the bottom of the launching gun, and a driving cylinder arranged above the launching gun. When the ice hockey puck is placed in the launching gun, the driving cylinder drives the seal of the launching gun, so that under the action of the high-pressure gas cylinder, the ice hockey puck is launched from the launching gun along the launching tube to the photovoltaic module arranged on the photovoltaic module mounting structure.

2. A pneumatic hail impact test device for photovoltaic modules according to claim 1, characterized in that: The photovoltaic module mounting structure includes a fixed rod and a mounting plate, and the first movable structure includes a first slide rail and a first slider. The first slide rail is arranged at the top of the wide side and the long side of the bottom frame, and the first slider is arranged on the first slide rail and movably connected to the first slide rail. Both ends of the fixed rod are arranged on the first slide rail at the top of the long side of the bottom frame, and both ends of the mounting plate are arranged on the first slide rail at the top of the short side of the bottom frame, so that the fixed rod and the mounting plate can move along the first slide rail through the corresponding first slider.

3. A pneumatic hail impact test device for photovoltaic modules according to claim 2, characterized in that: The second moving structure includes a first transmission component, a second transmission component, a first servo motor, a first optical axis, and a second slider; the first servo motor is connected to the first transmission component, the first transmission component and the second transmission component are respectively arranged on the two side surfaces of the long side of the top of the bottom frame, the first optical axis is arranged on the side surface of the short side of the top of the bottom frame, and the first optical axis is also connected to one end of the first transmission component and the second transmission component, and a second slider is arranged on the top of the first transmission component and the second transmission component, and the second slider is connected to the ice ball injection structure, so that when the first servo motor drives the first transmission component to rotate, the first transmission component drives the first optical axis to rotate, and the first optical axis drives the second transmission component to rotate, thereby making the first transmission component and the second transmission component drive the second slider and the ice ball injection structure to move.

4. A pneumatic hail impact test device for photovoltaic modules according to claim 3, characterized in that: The lateral movement assembly includes a support frame, a third transmission assembly, a second slide rail, and a second servo motor. The second servo motor is connected to the third transmission assembly. Both ends of the third transmission assembly and both ends of the second slide rail are connected to both ends of the support frame. The ice ball launching assembly is connected to the second slide rail and the third transmission assembly, so that the second servo motor drives the third transmission assembly to rotate, thereby driving the ice ball launching assembly to move along the second slide rail.

5. A pneumatic hail impact test device for photovoltaic modules according to claim 4, characterized in that: The support frame is also provided with a proximity switch.

6. A pneumatic hail impact test device for photovoltaic modules according to claim 5, characterized in that: The ice hockey launching assembly also includes a support rod and a third slider. The support rod is fixedly arranged on the third transmission assembly. The third slider is arranged on the support rod, and the third slider is connected to the second slide rail so that when the third transmission assembly drives the support rod to move, the third slider moves along the second slide rail.

7. A pneumatic hail impact test device for photovoltaic modules according to claim 6, characterized in that: A launch gun cover is provided on the top of the launch gun. When the piston rod of the driving cylinder abuts against the launch gun cover, the launch gun cover is sealed on the top of the launch gun.

8. The pneumatic hail impact test device for photovoltaic modules according to claim 7, characterized in that: The high-pressure gas cylinder is connected to a pressure sensor, an air intake valve, and an exhaust valve through a connecting pipe. The pressure sensor is arranged on the connecting pipe at the bottle mouth of the high-pressure gas cylinder, the air intake valve is arranged on the connecting pipe at the air intake of the high-pressure gas cylinder, and the exhaust valve is arranged on the connecting pipe at the exhaust of the high-pressure gas cylinder.

9. The pneumatic hail impact test device for photovoltaic modules according to claim 8, characterized in that: The transmitting tube is provided with a photoelectric sensor for measuring speed.

10. A pneumatic hail impact test device for photovoltaic modules according to claim 9, characterized in that: An air source generating structure is also provided in the bottom frame, and the air source generating structure includes a high-pressure air pump, a micro submersible pump, and a water tank. The micro submersible pump is arranged in the water tank, and one end of the micro submersible pump is connected to the water cooling interface of the high-pressure air pump, and the other end of the micro submersible pump is arranged in the water tank.

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