CN216490400U - Automatic electrical property testing device for double-sided assembly - Google Patents
Automatic electrical property testing device for double-sided assembly Download PDFInfo
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- CN216490400U CN216490400U CN202122088087.0U CN202122088087U CN216490400U CN 216490400 U CN216490400 U CN 216490400U CN 202122088087 U CN202122088087 U CN 202122088087U CN 216490400 U CN216490400 U CN 216490400U
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Abstract
The utility model discloses an automatic electrical property testing device of a double-sided assembly, which comprises a testing box, an upper supporting plate, a lower supporting plate, two rolling curtain type shading assemblies and two stable simulators, wherein the upper supporting plate and the lower supporting plate are arranged in the testing box and used for respectively fixing the upper end and the lower end of a photovoltaic assembly to be tested, the two stable simulators are respectively arranged on two different sides of the photovoltaic assembly to be tested, the two rolling curtain type shading assemblies are respectively arranged on two different sides of the photovoltaic assembly to be tested, and the two shading curtains are respectively used for shading the front side and the back side of the photovoltaic assembly to be tested after being unfolded. The testing device provided by the utility model has the advantages that the testing is simple and easy to implement, the automation is high, the rolling shutter type shading assembly and the steady-state simulator which are respectively positioned on different sides of the photovoltaic assembly to be tested can be used for carrying out single-side equivalent irradiance testing, and the two steady-state simulators can be used for simultaneously completing the synchronous illumination electrical property testing of the double-side assembly, so that the testing requirements of IEC61215-2021 standard can be met, and the testing efficiency and the testing precision are effectively improved.
Description
Technical Field
The utility model relates to the technical field of electrical performance testing of double-sided photovoltaic modules, in particular to an automatic electrical performance testing device of a double-sided module.
Background
In order to promote clean, low-carbon, safe and efficient utilization of energy, reduce carbon emission and realize strategic layout of carbon peak reaching and carbon neutralization targets as early as possible, installed capacity of a photovoltaic power station in new energy is continuously increased. The back of the common crystalline silicon solar cell module adopts the TPT back plate and can not be used for generating electricity, while the back of the double-sided module adopts the transparent back plate to cover and can receive light to generate electricity, so that the double-sided module has larger generating capacity than the common single-sided generating module. Due to the double-sided power generation characteristic of the double-sided assembly, the front side absorbs direct solar light, the back side receives ground reflected light and scattered light in air, and the front side and the back side can generate power, so that the installation direction can be oriented at will, and the installation inclination angle can be set at will. Meanwhile, the double-glass double-sided assembly glass structure is wear-resistant and stronger in corrosion resistance, the water permeability is almost zero, the fire-proof grade is upgraded from the C grade of the common crystal silicon assembly to the A grade, and the double-glass double-sided assembly glass structure is widely suitable for various application environments such as high temperature, high humidity, desert, seaside and the like. Such as complementary power stations of agricultural light, ground power stations, water surface power stations, sunlight rooms, photovoltaic greenhouses, sound-proof walls of highways, curtain walls, carports, BIPV and the like.
The method for testing the electrical property of the double-sided component is controversial in recent years, and recently, the IEC61215-2021 standard is published, and the method for testing the electrical property of the double-sided component is elaborated and divided into a single-sided equivalent irradiance testing method and a double-sided synchronous illumination testing method. The existing electrical property test equipment for the components is one-sided polished, and if the equipment is used for carrying out electrical property test on double-sided components, the test efficiency is low, the automation degree is not high, and different electrical property test methods of customers are difficult to meet.
SUMMERY OF THE UTILITY MODEL
In view of the defects in the prior art, the utility model provides the automatic electric performance testing device for the double-sided assembly, the device is simple and easy to test, has high automation, can simultaneously meet the IEC61215-2021 single-sided equivalent irradiance testing method and the double-sided synchronous illumination testing method according to different requirements of customers, and effectively improves the testing efficiency and the testing precision.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides an automatic testing arrangement of electrical property of two-sided subassembly, includes the test box upper and lower just mounting plate and bottom plate, two roll up curtain formula shading subassembly in the test box to and two steady state simulators, the mounting plate the bottom plate is used for fixing respectively the photovoltaic module's that awaits measuring upper and lower both ends, and two steady state simulators are located respectively on the wall of the photovoltaic module's that is located the awaiting measuring two different sides of test box, every roll up curtain formula shading subassembly includes the window shade and locates being used for of the top internal surface of test box receive and releases the winding mechanism of window shade, two roll up curtain formula shading subassembly and locate respectively the photovoltaic module's that awaits measuring two different sides, two the window shade is used for respectively sheltering from the photovoltaic module's that awaits measuring front, the back after expanding.
As one implementation mode, guide grooves penetrating through first end faces in the respective length directions are formed in the surfaces, facing the photovoltaic module to be tested, of the upper supporting plate and the lower supporting plate; the test box includes the introduction port, the introduction port is close to first terminal surface place side sets up for supply the photovoltaic module that awaits measuring to follow the upper bracket the guide slot of bottom plate inserts.
As one embodiment, the roller blind assembly further comprises a weight bar fixed to a free end of the window blind.
In one embodiment, at least one of the upper and lower trays is height-adjustably set within the test chamber.
As one embodiment, the automatic electrical property testing device of the double-sided assembly further comprises a lead screw and a motor, the lead screw is rotatably arranged on the testing box, and each upper supporting plate and/or each lower supporting plate is/are respectively matched with one lead screw so as to move up and down along the corresponding lead screw under the driving of the motor.
In one embodiment, the inner surface of the test chamber is covered with an anti-reflective layer.
As one embodiment, the automatic electrical performance testing device for the double-sided component further comprises a peripheral light shielding layer, and the peripheral light shielding layer shields the regions between the two ends of the upper supporting plate and the lower supporting plate in the length direction and the inner wall of the testing box.
As one embodiment, the light intensity of one steady-state simulator is in the range of 0-1300W/m2The light intensity of the other steady-state simulator is adjustable and ranges from 0W/m to 1100W/m2Is adjustable.
In one embodiment, the shade has an emissivity of less than 0.7%.
As one of the implementation modes, the automatic electrical property testing device for the double-sided assembly further comprises four clamping rods and a driving mechanism connected with each clamping rod, wherein the clamping rods are respectively arranged on two sides of the upper supporting plate and two sides of the lower supporting plate and are used for tightly supporting the shading curtain on the surface of the photovoltaic assembly to be tested under the driving of the corresponding driving mechanisms.
The device is provided with the steady-state simulators and the rolling shutter type shading assemblies which are respectively arranged on the front side and the back side of the photovoltaic assembly to be tested, the photovoltaic assembly to be tested is placed in the shading test box, the device is simple and convenient to test and high in automation, single-side equivalent irradiance test can be carried out by using the rolling shutter type shading assemblies and the steady-state simulators which are respectively positioned on different sides of the photovoltaic assembly to be tested, and synchronous irradiance electrical property test of a double-side assembly can be simultaneously finished by using the two steady-state simulators, so that an IEC61215-2021 single-side equivalent irradiance test method and a double-side synchronous irradiance test method can be simultaneously met according to different requirements of customers, and the test efficiency and the test precision are effectively improved.
Drawings
Fig. 1 is a schematic structural diagram of an external appearance of an automatic electrical property testing device for a double-sided assembly according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating an internal structure of an apparatus for automatically testing electrical properties of a double-sided device according to an embodiment of the present invention;
FIG. 3 is a perspective view showing the internal structure of an apparatus for automatically testing the electrical characteristics of a double-sided package according to an embodiment of the present invention;
fig. 4 is a partial structural schematic diagram of an electrical property automatic testing apparatus of a double-sided assembly according to an embodiment of the present invention.
Detailed Description
In the present invention, the terms "disposed", "provided" and "connected" are to be understood in a broad sense. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
The terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like, are used in an orientation or positional relationship indicated in the drawings for convenience in describing the application and for simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Referring to fig. 1 to 3, the utility model provides an automatic electrical property testing device for a double-sided assembly, which comprises a testing box 1, an upper supporting plate 11 and a lower supporting plate 12 which are opposite up and down in the testing box 1, two rolling shutter type shading assemblies 13 and two steady-state simulators 14. The upper supporting plate 11 and the lower supporting plate 12 are used for fixing the upper end and the lower end of the photovoltaic module 2 to be tested respectively, and are used as an upper clamping mechanism and a lower clamping mechanism of the photovoltaic module 2 to be tested. The two steady-state simulators 14 are respectively arranged on the walls of the test box 1, which are positioned on two different sides of the photovoltaic module 2 to be tested, and are respectively used for irradiating the front and back sides of the photovoltaic module 2 to be tested, which is arranged between the upper supporting plate 11 and the lower supporting plate 12, and testing the electrical property of the irradiated side. Each roller shutter type shading assembly 13 comprises a shading curtain 130 and a winding mechanism 131 which is arranged on the inner surface of the top of the test box 1 and used for winding and unwinding the shading curtain 130, the two roller shutter type shading assemblies 13 are respectively arranged on two different sides of the photovoltaic assembly 2 to be tested, and the two shading curtains 130 are respectively used for shading the front and the back of the photovoltaic assembly 2 to be tested after being unfolded.
The roller shutter type shading assembly 13 forms an automatic lifting antireflection system, the front side and the back side of the double-sided photovoltaic assembly 2 to be tested are respectively provided with one shading curtain, the emissivity of the shading curtain 130 is less than 0.7%, antireflection cloth can be adopted, and the roller shutter type shading assembly is mainly used for completely shading the front side or the back side of the photovoltaic assembly during electrical performance test so as to meet the requirement in IEC61215-2021 that the requirement on the aspect is not more than 3W/m2The amount of illumination of (a).
In order to reduce the influence of the light reflected by the inner wall of the test box 1 on the test result, the inner surface of the test box 1 of the embodiment is covered with an antireflection layer. The emissivity of the antireflection layer is less than 0.7%, for example, the inner wall of the test box 1 can be wrapped by antireflection cloth to create an atmosphere of a darkroom, so that the electrical performance test error caused by light reflection during the electrical performance test can be reduced.
As one embodiment, the light intensity range of one steady state simulator 14 is adjustable within the range of 0-1300W/m 2, and the light intensity range of the other steady state simulator 14 is adjustable within the range of 0-1100W/m 2, so that the requirement of the front and back surfaces of the double-sided assembly on low irradiation test is met. The spectra of the two steady-state simulators 14 must meet the requirement of AM1.5, and both adopt a high-power xenon lamp with an ultra-long pulse width and a pulse duration of 60ms, so that the requirements of measuring the multi-section scanning electrical performance of various high-power components at present can be met. The steady state simulator 14 may be fixed outside the test chamber 1 and polished through a through hole penetrating the side wall of the test chamber 1.
When the electrical property of the front side of the photovoltaic module 2 to be tested needs to be tested, the shading curtain 130 of the photovoltaic module 2 to be tested needs to be put down through the winding mechanism 131 on the back side, and the steady state simulator 14 facing the front side is used for working and testing. On the contrary, when the electrical performance of the back side of the photovoltaic module 2 to be tested needs to be tested, the window shade 130 needs to be put down by the winding mechanism 131 on the front side of the photovoltaic module 2 to be tested, and the steady-state simulator 14 facing the back side is operated to perform the test. When the electrical properties of the front and back sides of the photovoltaic module 2 to be tested need to be tested simultaneously, the two winding mechanisms 131 simultaneously retract the shading curtains 130 thereof, and the two steady-state simulators 14 are adopted to simultaneously polish, so that the synchronous illumination electrical property test of the double-sided module is completed.
It is understood that the width of the window shade 130 is preferably not less than the length of the upper and lower support plates 11, 12, so as to ensure that the reflected light on the opposite sides of the steady-state simulator 14 does not affect the single-sided equivalent irradiance test result of the photovoltaic module 2 to be tested.
In order to quickly and accurately mount the photovoltaic module 2 to be tested, the guide grooves 110 penetrating through the first end surfaces of the upper supporting plate 11 and the lower supporting plate 12 in the length direction are formed in the surfaces of the photovoltaic module 2 to be tested, and the guide grooves 110 are adapted to the thickness of the photovoltaic module 2 to be tested, so that the photovoltaic module 2 to be tested can be embedded in the guide grooves. Correspondingly, the test box 1 further has a sample inlet 1a, and the sample inlet 1a is disposed near the first end surface and is used for inserting the photovoltaic module 2 to be tested along the guide grooves 110 of the upper supporting plate 11 and the lower supporting plate 12.
As shown in fig. 1, the exposed guide grooves 110 of the upper and lower support plates 11 and 12 can be seen from the sample inlet 1a at the side of the test box 1, and the photovoltaic module 2 to be tested can be smoothly loaded into the test box 1 by aligning the photovoltaic module 2 to be tested at the position between the two guide grooves 110, and the upper and lower support plates 11 and 12 together form a slide rail of the photovoltaic module 2 to be tested. The test box 1 is also provided with a box door 1b for shielding the sample inlet 1a, and the box door 1b is covered on the sample inlet 1a, so that a closed and light-proof environment is formed in the test box 1. Fig. 1 shows a case that the box door 1b is installed at the sample inlet 1a in a vertically sliding manner, a sliding groove for sliding the box door 1b is correspondingly formed on the body of the testing box 1, and an operation block 1c for holding can be further protruded on the box door 1 b.
Further, at least one of the upper supporting plate 11 and the lower supporting plate 12 is arranged in the test box 1 in a height-adjustable manner, so that the distance between the upper supporting plate 11 and the lower supporting plate 12 is adjustable, and photovoltaic modules with different widths can be mounted in the upper supporting plate and the lower supporting plate to meet the test requirements of different specifications.
In the present embodiment, the heights of the upper supporting plate 11 and the lower supporting plate 12 can be freely adjusted. Specifically, the automatic electric performance testing device of two-sided subassembly has a plurality of height adjustment mechanism, and every height adjustment mechanism still includes lead screw 15 and motor 16, and lead screw 15 rotationally sets up on test box 1, and every upper plate 11, bottom plate 12 cooperate with a lead screw 15 respectively to can reciprocate along corresponding lead screw 15 under the drive of motor 16, consequently can the different width's of self-adaptation two-sided photovoltaic module's centre gripping. The lead screw 15 can be a ball screw, which improves the moving smoothness of the upper support plate 11 and the lower support plate 12.
More preferably, peripheral shading layers 17 may be disposed around the to-be-tested photovoltaic module 2 (especially, at two ends of the supporting plate), and the peripheral shading layers 17 shade regions between two ends of the upper supporting plate 11 and the lower supporting plate 12 in the length direction and the inner wall of the test box 1, so as to prevent light from entering the to-be-tested photovoltaic module 2 from the periphery. The upper side and the lower side of the photovoltaic module 2 to be tested are shielded by the upper supporting plate 11 and the lower supporting plate 12, so that the peripheral light shielding layer 17 can be omitted. The peripheral light-shielding layer 17 may be made of the same material as the shade 130.
As shown in fig. 4, in consideration of the flatness of the window shade 130 affecting the shading effect, the roller blind type shading assembly 13 of the present embodiment further includes a weight bar 132, and the weight bar 132 is transversely fixed to the free end of the window shade 130. For example, the ends of the shade 130 may be wrapped around the outer surface of the weight bar 132. Thus, in the natural state, the shade 130 will maintain a vertical effect under the weight bar 132's own weight after deployment.
In order to better ensure the shading effect of the shading curtain 130, the automatic electrical property testing device of the double-sided assembly further comprises four clamping rods 18 and a driving mechanism 19 connected with each clamping rod 18, two sides of the upper supporting plate 11 and the lower supporting plate 12 are respectively provided with one clamping rod 18, the clamping rods 18 can tightly support the shading curtain 130 on the surface of the photovoltaic assembly 2 to be tested under the driving of the corresponding driving mechanism 19, and the attaching effect of the shading curtain 130 is improved.
Here, the driving mechanism 19 may be a pneumatic cylinder or a hydraulic cylinder, and in fig. 4, two driving mechanisms 19 are simultaneously connected to each clamping rod 18, the two driving mechanisms 19 are disposed at intervals in the length direction of the clamping rods 18, and the driving mechanisms 19 may be fixed to the corresponding pallets.
It can be understood that above-mentioned test box 1 can be the temperature control box, is furnished with temperature environmental control system, can program temperature control system, establishes the temperature variation curve, feeds back the temperature that temperature sensor detected to electrical property test system in real time through data acquisition system simultaneously, carries out automatic electrical property measurement to the temperature control point, can realize the measurement of automatic temperature coefficient.
The test process of the automatic electric performance test device of the double-sided assembly is as follows:
(1) the single-sided equivalent irradiance testing method comprises the following steps:
the method comprises the following steps of firstly, testing the electrical property of the front side of the double-sided photovoltaic module:
preheating the equipment for 30min, testing the electrical property of the double-sided photovoltaic assembly after the equipment is stable and the ambient temperature and the assembly temperature reach 25 +/-2 ℃, putting the double-sided photovoltaic assembly into a testing area through the guide grooves 110 of the upper supporting plate 11 and the lower supporting plate 12, and closing the box door 1b of the testing box 1; the winding mechanism 131 on the back side of the double-sided photovoltaic assembly is started through an operation interface outside the test box 1, the counterweight rod 132 downwards moves to cover the back side of the double-sided photovoltaic assembly, and the back side driving mechanism 19 is controlled to work through the operation interface, so that the clamping rod 18 on the back side compresses the shading curtain 130, and the test error caused by light leakage on the back side of the double-sided photovoltaic assembly is avoided; finally, the electrical performance of the front side of the double-sided photovoltaic module is tested by electrical performance testing software using the front side steady state simulator 14.
Step two, measuring the electrical property of the back of the double-sided photovoltaic module:
the winding mechanism 131 on the back side of the double-sided photovoltaic module is started through an operation interface outside the test box 1, the shading curtain 130 on the back side is lifted and rolled up, the winding mechanism 131 on the front side of the double-sided photovoltaic module is started, the counterweight rods 132 of the winding mechanism are pulled down to cover the front side of the double-sided photovoltaic module, and the operation of the driving mechanism 19 on the front side is controlled through the operation interface, so that the clamping rods 18 on the front side compress the reflective cloth, and the test error caused by light leakage on the front side of the double-sided photovoltaic module is avoided; finally, the electrical performance of the back side of the bifacial photovoltaic module is tested by electrical performance testing software using the back side steady state simulator 14.
Step three, testing the single-side equivalent irradiance electrical property of the double-side photovoltaic module:
and (3) calculating the double-side rate of the double-side photovoltaic module, and enabling the illumination irradiance on the back side to be equivalent to the front side test of the photovoltaic module.
(2) The double-side synchronous illumination test method comprises the following steps:
and step one, testing the electrical property of the front side of the double-sided photovoltaic module, wherein the step is completely the same as the single-sided equivalent irradiance testing method, and is omitted.
And step two, measuring the electrical property of the back of the double-sided photovoltaic module, wherein the step is completely the same as the single-sided equivalent irradiance test method, and is omitted here.
Step three, testing the synchronous illumination electrical property of the double-sided assembly:
the irradiation amount required by the back of the double-sided photovoltaic module is calculated by calculating the double-sided rate of the double-sided photovoltaic module according to the IEC61215-2021 test standard, and the synchronous illumination electrical performance test of the double-sided module is completed by simultaneously polishing the two steady-state simulators 14 on the front side and the back side.
In summary, the device has the stable simulators and the rolling shutter type shading assemblies which are respectively arranged on the front side and the back side of the photovoltaic assembly to be tested, the photovoltaic assembly to be tested is placed in the shading test box, the device is simple and convenient to test, the automation is high, the rolling shutter type shading assemblies and the stable simulators which are respectively positioned on different sides of the photovoltaic assembly to be tested can be used for carrying out single-side equivalent irradiance test, and the two stable simulators can be used for simultaneously completing the synchronous lighting electrical performance test of the double-side assembly, so that the IEC61215-2021 single-side equivalent irradiance test method and the double-side synchronous lighting test method can be simultaneously met according to different requirements of customers, and the test efficiency and the test precision are effectively improved.
The foregoing is directed to embodiments of the present application and it is noted that numerous modifications and adaptations may be made by those skilled in the art without departing from the principles of the present application and are intended to be within the scope of the present application.
Claims (10)
1. The utility model provides an automatic testing arrangement of electrical property of two-sided subassembly, its characterized in that, including test box (1), just from top to bottom in test box (1) pop-up board (11) and bottom plate (12), two roll up curtain formula shading subassembly (13) to and two steady state simulators (14), pop-up board (11), bottom plate (12) are used for the upper and lower both ends of the photovoltaic module (2) that fix respectively awaiting measuring, and two steady state simulators (14) are located respectively on the wall of the two different sides that lie in the photovoltaic module (2) that await measuring of test box (1), every roll up curtain formula shading subassembly (13) and include window shade (130) and locate being used for of the top internal surface of test box (1) receive and release winding mechanism (131) of window shade (130), two roll up curtain formula shading subassembly (13) and locate respectively the two different sides of the photovoltaic module (2) that await measuring, the two shading curtains (130) are respectively used for shading the front and the back of the photovoltaic module (2) to be tested after being unfolded.
2. The automatic electrical property testing device of the double-sided assembly according to claim 1, wherein the surfaces of the upper supporting plate (11) and the lower supporting plate (12) facing the photovoltaic assembly (2) to be tested are provided with guide grooves (110) penetrating through the first end surfaces in the respective length directions; the test box (1) includes introduction port (1a), introduction port (1a) is close to first terminal surface place side sets up for supply photovoltaic module (2) that awaits measuring to follow upper plate (11) guide slot (110) of bottom plate (12) insert.
3. The automated testing device for electrical properties of a bifacial assembly as set forth in claim 1, wherein said roller blind assembly (13) further comprises a weight bar (132), said weight bar (132) being secured to a free end of said blind (130).
4. The automated testing device for electrical properties of a two-sided assembly according to claim 1, characterized in that at least one of the upper and lower pallets (11, 12) is height-adjustably arranged within the test chamber (1).
5. The automatic electrical property testing device of a double-sided assembly according to claim 4, further comprising a lead screw (15) and a motor (16), wherein the lead screw (15) is rotatably disposed on the testing box (1), and each of the upper supporting plate (11) and/or the lower supporting plate (12) is/are respectively matched with one of the lead screws (15) to move up and down along the corresponding lead screw (15) under the driving of the motor (16).
6. Automated testing device of the electrical properties of a double-sided assembly according to claim 1, characterized in that the inner surface of the test box (1) is covered with an antireflection layer.
7. The automatic test device for the electrical performance of the double-sided component according to claim 1, further comprising a peripheral light shielding layer (17), wherein the peripheral light shielding layer (17) shields a region between both ends of the upper support plate (11) and the lower support plate (12) in the length direction and the inner wall of the test box (1).
8. The automatic testing device for the electrical performance of a double-sided assembly according to claim 1, wherein the light intensity of one steady-state simulator (14) ranges from 0W/m to 1300W/m2The light intensity of the other steady state simulator (14) is adjustable and ranges from 0W/m to 1100W/m2Is adjustable.
9. The automated testing device of electrical properties of a two-sided assembly of claim 1, wherein the emissivity of the window shade (130) is less than 0.7%.
10. The automatic electrical property testing device of a double-sided assembly according to any one of claims 1 to 9, further comprising four clamping rods (18) and a driving mechanism (19) connected to each clamping rod (18), wherein one clamping rod (18) is respectively arranged on two sides of the upper supporting plate (11) and the lower supporting plate (12) and is used for tightly pressing the light-shielding curtain (130) against the surface of the photovoltaic assembly (2) to be tested under the driving of the corresponding driving mechanism (19).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122088087.0U CN216490400U (en) | 2021-09-01 | 2021-09-01 | Automatic electrical property testing device for double-sided assembly |
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| CN202122088087.0U CN216490400U (en) | 2021-09-01 | 2021-09-01 | Automatic electrical property testing device for double-sided assembly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115764860A (en) * | 2022-10-21 | 2023-03-07 | 国网河北省电力有限公司营销服务中心 | Photovoltaic power generation power prediction analysis device and method |
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2021
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115764860A (en) * | 2022-10-21 | 2023-03-07 | 国网河北省电力有限公司营销服务中心 | Photovoltaic power generation power prediction analysis device and method |
| CN115764860B (en) * | 2022-10-21 | 2024-04-19 | 国网河北省电力有限公司营销服务中心 | Photovoltaic power generation power prediction analysis device and method |
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