CN108768298B - Hail impact resistance testing device for photovoltaic module - Google Patents
Hail impact resistance testing device for photovoltaic module Download PDFInfo
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- CN108768298B CN108768298B CN201810885160.7A CN201810885160A CN108768298B CN 108768298 B CN108768298 B CN 108768298B CN 201810885160 A CN201810885160 A CN 201810885160A CN 108768298 B CN108768298 B CN 108768298B
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- Prior art keywords
- photovoltaic module
- ice balls
- testing device
- ice
- hail impact
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- 238000012360 testing method Methods 0.000 title claims abstract description 41
- 238000009863 impact test Methods 0.000 claims abstract description 11
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000001066 destructive effect Effects 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
- H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Photovoltaic Devices (AREA)
- Testing Of Individual Semiconductor Devices (AREA)
Abstract
The invention discloses a hail impact resistance testing device for a photovoltaic module, which has stable speed of an ice hockey ball and is easy to adjust. The utility model provides a photovoltaic module anti-hail impact testing arrangement, includes two at least transfer pulleys and tensioning set up in each transfer belt on the transfer pulley, at least one the transfer pulley is connected with power unit in order to by power unit drive rotates and drives the transfer belt removes, be equipped with the mount pad that is used for loading the puck of analog hail on the transfer belt, photovoltaic module anti-hail impact testing arrangement has the first operating condition of loading the puck and the second operating condition after the puck is launched, when by first operating condition changes to the second operating condition, the puck breaks away from the mount pad and has speed in order to launch forward to the photovoltaic module that awaits measuring.
Description
Technical Field
The invention belongs to the field of solar photovoltaic module testing, and particularly relates to a hail impact resistance testing device for a photovoltaic module.
Background
Various destructive tests, such as mechanical load tests, component breakage tests, cutting tests, hail impact tests, etc., are performed before the photovoltaic components are shipped from the factory to simulate the anti-destructive ability of the photovoltaic components under severe natural conditions. At present, the performance of anti-hail impact of a photovoltaic module is generally tested through hail impact testing equipment. As in chinese patent CN108318208a, a hail impact tester for a photovoltaic module is disclosed, which comprises a tester body, the tester body comprises a frame, a fixing frame, a mechanical moving device, a pneumatic transmitting device and a speed testing device, a high-pressure air source of the pneumatic transmitting device is an air storage tank containing compressed air, a heat exchange tube is arranged in the air storage tank, and the heat exchange tube is connected with a heat exchanger.
However, the hail impact testing devices currently emit the ice hockey through air pressure. Before testing, debugging equipment is needed, after the speed is adjusted, the test can be performed, and the ice hockey is consumed in the debugging process. Because the shape of the ice hockey is not 100% spherical, the emitted speed is still slightly deviated, the ice hockey is not stable enough, the speed of the ice hockey is not easy to control, and the adjustment is not convenient enough. The hail test is usually carried out on the assembly after 1000 hours of hot and humid conditions, if the assembly is broken by the puck with the speed exceeding the standard requirement in the hail test process, the assembly needs to be manufactured again, and the test before the hail test is completed.
Disclosure of Invention
Aiming at the technical problems, the invention aims to provide the hail impact resistance testing device for the photovoltaic module, which has stable speed of the puck and is easy to adjust.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The utility model provides a photovoltaic module anti-hail impact testing arrangement, includes two at least transfer pulleys and tensioning set up in each transfer belt on the transfer pulley, at least one the transfer pulley is connected with power unit in order to by power unit drive rotates and drives the transfer belt removes, be equipped with the mount pad that is used for loading the puck of analog hail on the transfer belt, photovoltaic module anti-hail impact testing arrangement has the first operating condition of loading the puck and the second operating condition after the puck is launched, when by first operating condition changes to the second operating condition, the puck breaks away from the mount pad and has speed in order to launch forward to the photovoltaic module that awaits measuring.
In an embodiment, the upper edges of the two conveying wheels are leveled, when the hail impact resistance testing device of the photovoltaic module is in the first state, the part of the conveying belt provided with the mounting seat is positioned between the upper edges of the two conveying wheels to horizontally extend, and when the first working state is converted into the second working state, the ice hockey puck has the same speed as the conveying belt.
In one embodiment, the number of the conveying wheels is two, and the two conveying wheels are horizontally arranged at intervals.
In an embodiment, the mounting seat is provided with a containing groove for containing the ice hockey, the containing groove is provided with a notch facing forward, and the width of the notch is not smaller than the outer diameter of the ice hockey to allow the ice hockey to be ejected.
In an embodiment, the inner wall of the accommodating groove is an arc curved surface or a hemispherical surface matched with the ice hockey puck.
In one embodiment, the power mechanism is an electric motor.
In an embodiment, the test device further comprises a speed regulating device for regulating the rotational speed of the motor.
In an embodiment, the hail impact resistance testing device for the photovoltaic module further comprises a mounting frame, wherein the mounting frame is provided with a mounting area for arranging the photovoltaic module to be tested, and the mounting area is positioned in front of one of the conveying wheels.
In one embodiment, the upper edges of the two conveying wheels are leveled, when the hail impact resistance testing device of the photovoltaic module is in the first state, the part of the conveying belt provided with the mounting seat is positioned between the upper edges of the two conveying wheels to horizontally extend, and the mounting area is positioned right in front of the horizontally extending part of the conveying belt.
In one embodiment, when the hail impact resistance testing device of the photovoltaic module is in the first state, the notch of the accommodating groove faces the mounting area.
Compared with the prior art, the invention has the following advantages:
the mechanical transmission is adopted to shoot out the ice hockey, so that the speed of the ice hockey can be accurately controlled, the time for debugging the speed of the ice hockey is reduced, and the device can be used for hail tests of different sizes.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a hail impact resistance testing device for a photovoltaic module according to the present invention;
Fig. 2 is a top view of the conveyor belt and mounting base of fig. 1.
Wherein, 1, a conveying wheel; 11. a rotating wheel; 12. driven wheel; 2. a conveyor belt; 21. a portion between the upper edges of the transfer wheels; 3. a mounting base; 30. a mounting groove; 4.A mounting frame; 5. a photovoltaic module.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the attached drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art. The description of these embodiments is provided to assist understanding of the present invention, but is not intended to limit the present invention. In addition, technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
The invention provides a hail impact resistance testing device for a photovoltaic module, which is used for testing the hail impact resistance of the photovoltaic module. Referring to fig. 1, the hail impact resistance testing device for the photovoltaic module comprises at least two conveying wheels 1 and a conveying belt 2 matched with the conveying wheels 1, wherein the conveying belt 2 is tensioned on each conveying wheel 1 so as to be capable of being conveyed forwards. At least one of the conveying wheels 1 is connected with a power mechanism so as to be driven by the power mechanism to rotate, and then the conveying belt 2 is driven to move. The conveyor belt 2 is fixedly provided with a mounting seat 3, the mounting seat 3 is provided with an ice ball simulating hail, and the ice ball can be separated from the mounting seat 3 to shoot to the photovoltaic module 5to be tested. The hail impact resistance testing device of the photovoltaic module is provided with a first working state in which the puck is loaded and a second working state after the puck is ejected, and when the first working state is converted into the second working state, the puck is separated from the mounting seat 3 and has a speed to be emitted forward to the photovoltaic module 5to be tested (the direction indicated by an arrow in fig. 1, and the puck has a speed v). In this embodiment, the azimuth term "front" corresponds to the right side of the paper surface in fig. 1.
When the installation seat 3 loaded with the ice balls moves to the tangent point of the conveyor belt 2 at the front conveyor wheel 1, the ice balls fly out by self inertia, and the anti-hail impact testing device of the photovoltaic module is switched from the first working state to the second working state. The ice hockey puck flies out at an initial speed that is proportional to the conveying speed of the conveyor belt 2.
In particular, in the present embodiment, the number of the transfer wheels 1 is two, and the two transfer wheels 1 are horizontally spaced apart. The power mechanism is specifically a motor (not shown in the figure), one of the transmission wheels 1 is a rotating wheel 11 driven by the power mechanism to rotate, the other is a driven wheel 12, and the rotating wheel 11 is positioned in front of the driven wheel 12. The portion 21 of the conveyor belt 2 between the upper edges of both the runner 11 and the driven pulley 12 extends back and forth, preferably horizontally, and correspondingly the upper edge of the runner 11 is flush with the upper edge of the driven pulley 12. When the anti-hail impact testing device of the photovoltaic module is in the first state, the part of the conveyor belt 2 provided with the mounting seats 3 is positioned between the upper edges of the two conveyor wheels 1 to horizontally extend, when the first working state is switched to the second working state, the mounting seats 3 loaded with the ice balls are moved to the position of the contact point of the horizontally extending parts 21 of the conveyor belt 2 and the rotating wheels 11, the ice balls are separated from the mounting seats 3 and the conveyor belt 2, and the ice balls have the same speed as the conveyor belt 2. That is, when the first operation state is switched to the second operation state, the speed v=2pi Rn when the puck breaks away from the conveyor belt 2 and the mounting seat 3 thereon, wherein 2pi R is the circumference, R is the sum of the radius of the runner 11 and the thickness of the conveyor belt 2, and n is the rotational speed of the runner 11; since the portion 21 of the conveyor belt 2 extends horizontally, the speed of the puck is identical to the speed of the conveyor belt 2, i.e., v is equal to the speed of the conveyor belt 2, and the speed of the puck that is ejected is always stable. In other embodiments, the portion of the conveyor belt 2 is disposed obliquely, and the speed at which the puck exits the conveyor belt 2 is related to the speed of the conveyor belt 2 and its own weight, the inclination of the portion of the conveyor belt 2.
The test device also comprises a speed regulating device for regulating the rotating speed of the motor, such as a controller electrically connected with the motor. The purpose of adjusting the speed of the conveyor belt 2 is achieved by adjusting the rotating speed of the motor, so that the speed of the ice hockey, which is directed to the photovoltaic module 5, is adjusted, and the speed of the ice hockey is easy to control and convenient.
The mounting seat 3 is provided with a containing groove 30 for containing the ice ball, the containing groove 30 is provided with a notch facing forward, the width of the notch is not smaller than the outer diameter of the ice ball so as to allow the ice ball to be ejected, and when the mounting seat 3 moves to the upper edge of the rotating wheel 11, the ice ball is ejected forward from the notch. Also to be described is: the receiving groove 30 extends downward to the surface of the conveyor belt 2, and the puck is actually placed on the conveyor belt 2 and is restrained from rolling in other directions (e.g., backward or left and right sides) by the mounting seat 3. Preferably, the inner wall of the receiving groove 30 is an arc curved surface or a hemispherical surface to be matched with the ice hockey puck.
The hail impact resistance testing device for the photovoltaic module further comprises a mounting frame 4, wherein the mounting frame 4 is provided with a mounting area for arranging the photovoltaic module 5 to be tested, and the mounting area is positioned in front of one of the conveying wheels 1 (namely the rotating wheel 11). The photovoltaic module 5 is mounted in the mounting area, that is, the mounted photovoltaic module 5 is located in front of the rotating wheel 11. When the hail impact resistance testing device for the photovoltaic modules is in the first state, the installation area and the photovoltaic modules 5 in the installation area are positioned right in front of the horizontal extension part of the conveyor belt 2, and the notch of the accommodating groove 30 is right opposite to the installation area and the photovoltaic modules 5 in the installation area.
The working process of the hail impact resistance testing device of the photovoltaic module is as follows:
The motor drives the rotating wheel 11 to rotate so as to drive the conveying belt 2 to move, when the mounting seat 3 moves to the position above the rotating wheel 11 and the driven wheel 12, the ice ball is placed in the mounting seat 3, the conveying belt 2 drives the ice ball to move forwards together, when the ice ball moves to the tangent point of the rotating wheel 11, the conveying belt 2 rotates downwards, and the ice ball has inertia and breaks away from a notch of the mounting groove and is provided with a photovoltaic module 5 which is shot onto the mounting frame 4 at the same speed as the conveying belt 2. Therefore, the invention can accurately adjust the speed of the ice hockey, reduce the time for adjusting the speed of the ice hockey, and can be used for hail tests with different sizes.
The above-described embodiments are provided for illustrating the technical concept and features of the present invention, and are intended to be preferred embodiments for those skilled in the art to understand the present invention and implement the same according to the present invention, not to limit the scope of the present invention. All equivalent changes or modifications made according to the principles of the present invention should be construed to be included within the scope of the present invention.
Claims (5)
1. The hail impact resistance testing device for the photovoltaic module is characterized by comprising at least two conveying wheels and a conveying belt which is arranged on each conveying wheel in a tensioning mode, wherein the upper edges of the two conveying wheels are leveled, at least one conveying wheel is connected with a power mechanism to be driven to rotate by the power mechanism so as to drive the conveying belt to move, a mounting seat for loading hail-simulating ice balls is arranged on the conveying belt, a containing groove for containing the ice balls is formed in the mounting seat, the inner wall of the containing groove is an arc-shaped curved surface or a hemispherical surface matched with the ice balls so as to limit the ice balls to roll backwards or left and right sides and allow the ice balls to be emitted forwards, the containing groove is provided with a notch facing forwards, the width of the notch is not smaller than the outer diameter of the ice balls so as to allow the ice balls to be emitted, the hail impact resistance testing device for the photovoltaic module is provided with a first working state of the ice balls and a second working state of the ice balls after the ice balls are emitted, when the hail impact resistance testing device for the photovoltaic module is in the first state, the conveying seat is provided with a containing groove for containing the ice balls, the inner wall of the containing groove is formed in the receiving groove is matched with the ice balls, the arc-shaped curved surface or hemispherical surface is matched with the ice balls, the ice balls roll backwards or left and right and allow the ice balls to be emitted forwards, the ice balls are not smaller than the outer diameter of the ice balls, and the ice balls are arranged at the same level than the position of the ice balls, and the position of the ice balls to be detected, and the position is at the position of the speed of the ice balls;
The power mechanism comprises a motor, the hail impact resistance testing device of the photovoltaic module further comprises a speed regulating device, the speed of the ice hockey is consistent with that of the transmission belt, and the speed regulating device is configured to regulate the rotating speed of the motor so as to regulate the speed of the ice hockey to the photovoltaic module.
2. The hail impact resistance testing device for a photovoltaic module according to claim 1, wherein the number of the conveying wheels is two, and the two conveying wheels are horizontally arranged at intervals.
3. The device for testing the hail impact of a photovoltaic module according to claim 1, further comprising a mounting frame, wherein the mounting frame is provided with a mounting area for setting the photovoltaic module to be tested, and the mounting area is positioned in front of one of the transmission wheels.
4. A hail impact resistance testing device for a photovoltaic module according to claim 3, wherein the upper edges of the two conveying wheels are leveled, and when the hail impact resistance testing device for a photovoltaic module is in the first state, the portion of the conveying belt provided with the mounting seat is positioned between the upper edges of the two conveying wheels to extend horizontally, and the mounting area is positioned right in front of the horizontally extending portion of the conveying belt.
5. The hail impact testing device of a photovoltaic module of claim 4, wherein the slot opening of the receiving slot is opposite the mounting area when the hail impact testing device of a photovoltaic module is in the first state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810885160.7A CN108768298B (en) | 2018-08-06 | 2018-08-06 | Hail impact resistance testing device for photovoltaic module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810885160.7A CN108768298B (en) | 2018-08-06 | 2018-08-06 | Hail impact resistance testing device for photovoltaic module |
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| Publication Number | Publication Date |
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| CN108768298A CN108768298A (en) | 2018-11-06 |
| CN108768298B true CN108768298B (en) | 2024-05-14 |
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| CN201810885160.7A Active CN108768298B (en) | 2018-08-06 | 2018-08-06 | Hail impact resistance testing device for photovoltaic module |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114252267B (en) * | 2020-09-23 | 2024-05-24 | 中国航发商用航空发动机有限责任公司 | Borneol emission device and method |
| CN116296932B (en) * | 2023-05-25 | 2023-08-04 | 江苏福明太阳能有限公司 | Physical load photovoltaic module test equipment |
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