CN220401709U - Testing device for photovoltaic self-cleaning coating - Google Patents
Testing device for photovoltaic self-cleaning coating Download PDFInfo
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- CN220401709U CN220401709U CN202321311673.XU CN202321311673U CN220401709U CN 220401709 U CN220401709 U CN 220401709U CN 202321311673 U CN202321311673 U CN 202321311673U CN 220401709 U CN220401709 U CN 220401709U
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- dust
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- 238000012360 testing method Methods 0.000 title claims abstract description 110
- 238000004140 cleaning Methods 0.000 title claims abstract description 33
- 239000011248 coating agent Substances 0.000 title claims abstract description 32
- 238000000576 coating method Methods 0.000 title claims abstract description 32
- 238000004088 simulation Methods 0.000 claims abstract description 61
- 239000000428 dust Substances 0.000 claims abstract description 38
- 239000007921 spray Substances 0.000 claims description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000002834 transmittance Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 239000011538 cleaning material Substances 0.000 description 5
- 238000010248 power generation Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000023077 detection of light stimulus Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Abstract
The application discloses a testing device for a photovoltaic self-cleaning coating, which comprises a testing box, wherein a testing table for placing a device to be detected is slidably arranged in the testing box; meanwhile, a light source module, a rainwater simulation assembly, a wind speed simulation assembly and a dust simulation assembly are respectively arranged in the test box; meanwhile, a controller is also arranged on the test box, and the light source module, the rainwater simulation assembly, the wind speed simulation assembly and the dust simulation assembly are respectively connected with the controller; when the device to be detected coated with the photovoltaic self-cleaning coating is placed on a test bench in use, the outdoor actual working condition environment is comprehensively simulated through the rainwater simulation component, the wind speed simulation component and the dust simulation component, the light transmittance of the self-cleaning coating under the working conditions is further tested, the dustproof effect of the self-cleaning coating is confirmed through the light transmittance, and therefore the problem that the dustproof and pollution-resistant capability of the photovoltaic panel self-cleaning coating is difficult to detect in the prior art is solved.
Description
Technical Field
The application relates to the technical field of detection equipment, in particular to a testing device for a photovoltaic self-cleaning coating.
Background
At present, photovoltaic power generation represented by green energy is greatly developed, a photovoltaic power generation plate in the prior art is generally arranged in a field environment with sufficient illumination, and after a period of work, the surface of the photovoltaic power generation plate is inevitably stained with pollutants such as dust.
Dust pollutants not only affect the service life of the assembly, but also affect the light transmittance, and further affect the power generation efficiency of the photovoltaic panel. In order not to influence the power generation efficiency and economic benefit of a power station, and also to solve the pollution problem, a plurality of photovoltaic self-cleaning materials are produced, and a plurality of self-cleaning materials applied to photovoltaic glass are already available on the market. The construction process of the self-cleaning material is different in size, and a layer of self-cleaning material is applied to the photovoltaic surface; however, the self-cleaning effect of the self-cleaning material is not good, and the prior art has no corresponding testing method and equipment, so that the testing difficulty is high.
Disclosure of Invention
The main aim of the application is to provide a testing device for a photovoltaic self-cleaning coating, which aims at solving the defect of high testing difficulty in the prior art.
The application realizes the aim through the following technical scheme:
the testing device for the photovoltaic self-cleaning coating comprises a testing box, wherein a testing table for placing a device to be tested is slidably arranged in the testing box;
the light source module is arranged on the test box and provides a simulated light source for the test;
the rainwater simulation assembly is arranged on the test box and sprays simulated rainwater to the solar cell panel to be detected;
the wind speed simulation assembly is arranged on the test box and used for providing simulated wind for the solar cell panel to be detected;
the dust simulation component is arranged on the test box and used for providing simulation dust for the solar cell panel to be detected;
the controller is arranged on the test box, and the light source module, the rainwater simulation assembly, the wind speed simulation assembly and the dust simulation assembly are respectively connected with the controller.
Optionally, an adjusting sliding rail is arranged in the test box, an adjusting sliding seat connected with the test table is arranged on the adjusting sliding rail, and a fixing screw is arranged on the adjusting sliding seat.
Optionally, the test bench comprises a bottom plate and a wedge-shaped bench which are connected with each other, and a light hole and a fastening device for fixing the component to be detected are arranged on the wedge-shaped bench.
Optionally, the fastening device comprises an upper clamping plate, a lower clamping plate and two parallel sliding rails, wherein both ends of the upper clamping plate and the lower clamping plate are respectively connected with the sliding rails through sliding blocks; and the upper clamping plate and the lower clamping plate are respectively provided with a mounting groove and a fastening screw.
Optionally, be provided with a plurality of connecting sleeve on the bottom plate, be provided with adjusting spring in the connecting sleeve, be provided with a plurality of telescopic links on the wedge bench, each the one end of telescopic link inserts respectively in each connecting sleeve, just the telescopic link with adjusting spring butt, still be provided with on the wedge bench with the vibrating motor that the controller links to each other.
Optionally, the light source module comprises a light source emitter and a light source sensor which are respectively arranged at two ends of the test bench, and the light source emitter and the light source sensor are respectively connected with the controller; the both sides of test box all are provided with the printing opacity protection casing, light source transmitter with light source inductor divides to put in two in the protection casing.
Optionally, the rainwater simulation assembly comprises a water storage tank and a spray pipe, wherein the spray pipe is rotationally connected with the test tank, and a plurality of spray heads are arranged on the spray pipe; and a spray pump connected with the spray pipe is further arranged in the water storage tank, and the controller is connected with the spray pump.
Optionally, the wind speed simulation assembly comprises a fan connected with the controller, a connecting lug is arranged on the test box, and the fan is hinged with the connecting lug through a pin shaft; and a fixing nut is further arranged on the pin shaft.
Optionally, the dust simulation assembly comprises a dust box, and a screen and a vibration motor connected with the controller are arranged on the dust box; the dust box is connected with the test box through an elastic module.
Optionally, the elastic module comprises a plurality of groups of mutually matched sliding rods and sliding holes; each sliding hole is arranged on the test box, and each sliding rod is respectively connected with the dust box; the sliding rod is also provided with a pressing nut and a reset spring, and two ends of the reset spring are respectively abutted against the pressing nut and the test box.
Compared with the prior art, the application has the following beneficial effects:
the device comprises a test box, wherein a test bench for placing a device to be detected is slidably arranged in the test box; meanwhile, a light source module, a rainwater simulation assembly, a wind speed simulation assembly and a dust simulation assembly are respectively arranged in the test box; meanwhile, a controller is also arranged on the test box, and the light source module, the rainwater simulation assembly, the wind speed simulation assembly and the dust simulation assembly are respectively connected with the controller;
when in use, the device to be detected coated with the photovoltaic self-cleaning coating is placed on a test bench and fixed; then adjusting the position of the test bench according to experimental requirements, and further controlling the distance between the light source module and the device to be detected;
meanwhile, simulating raining weather through a rainwater simulation assembly, simulating strong wind weather through a wind speed simulation assembly, and forming dust on the surface of a device to be detected through a dust simulation assembly; the field working condition of the photovoltaic panel is simulated through the components, the light transmittance of the self-cleaning coating under the working condition is tested, and the dustproof effect of the self-cleaning coating is confirmed through the light transmittance;
compared with the prior art, the simulation of the field working environment of the photovoltaic panel is realized through the device, so that the problem that the dust-proof and pollution-resistant capability test of the self-cleaning coating of the photovoltaic panel is difficult in the prior art is solved; meanwhile, the field actual working condition environment is formed through comprehensive simulation of the rainwater simulation assembly, the wind speed simulation assembly and the dust simulation assembly, so that the device has higher testing precision.
Drawings
FIG. 1 is a schematic structural view of a testing device for a photovoltaic self-cleaning coating according to an embodiment of the present application;
FIG. 2 is an exploded view of a test device for a photovoltaic self-cleaning coating according to an embodiment of the present application;
FIG. 3 is a cross-sectional view of a test apparatus for a photovoltaic self-cleaning coating provided in an embodiment of the present application;
FIG. 4 is a schematic diagram of a test bench;
FIG. 5 is a schematic diagram of a rain simulation assembly and a wind speed simulation assembly;
reference numerals: the device comprises a 1-test box, a 2-test table, a 3-controller, a 4-adjusting slide rail, a 5-adjusting slide seat, a 6-bottom plate, a 7-wedge-shaped table, an 8-light hole, a 9-upper clamping plate, a 10-lower clamping plate, an 11-slide rail, a 12-slide block, a 13-mounting groove, a 14-connecting sleeve, a 15-adjusting spring, a 16-telescopic rod, a 17-vibrating motor, an 18-light source emitter, a 19-light source sensor, a 20-protective cover, a 21-water storage tank, a 22-spray pipe, a 23-spray head, a 24-spray pump, a 25-fan, a 26-connecting lug, a 27-pin roll, a 28-fixing nut, a 29-dust box, a 30-screen, a 31-sliding rod, a 32-sliding hole, a 33-pressing nut and a 34-reset spring.
The realization of the objects, the functional characteristics and the advantages of the present application will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
Embodiment 1
Referring to fig. 1 to 5, this embodiment, which is an alternative embodiment of the present application, discloses a testing device for a photovoltaic self-cleaning coating, comprising a testing box 1, wherein the testing box 1 is a closed box body, and a sealing door is arranged at one side of the testing box 1 along the length direction of the testing box 1;
the testing device comprises a testing table 2, wherein the testing table 2 comprises a bottom plate 6 and a wedge-shaped table 7 which are connected with each other, the cross section of the wedge-shaped table 7 is a right triangle, and the inclination angle of the wedge-shaped table 7 takes 45 degrees as the optimal inclination angle;
the inclined surface of the wedge-shaped table 7 is provided with a light hole 8 so as to avoid shielding light rays and facilitate detection of light transmittance; the wedge-shaped table 7 is also provided with a fastening assembly, the fastening device comprises an upper clamping plate 9, a lower clamping plate 10 and two parallel sliding rails 11, wherein the two sliding rails 11 are arranged on two sides of the light hole 8 in parallel, the two sliding rails 11 are provided with only sliding blocks 12, and two ends of the upper clamping plate 9 and the lower clamping plate 10 are respectively connected with the sliding rails 11 through the sliding blocks 12; meanwhile, mounting grooves 13 are formed in the upper clamping plate 9 and the lower clamping plate 10, fastening screws are further connected to the upper clamping plate 9 and the lower clamping plate 10 in a threaded manner, one ends of the fastening screws are inserted into the mounting grooves 13, and the device to be detected is fixed by abutting against the surface of the device to be detected;
the device can adapt to the adjustment requirements of the devices to be detected with different specifications and sizes, and can adjust the height position of the devices to be detected according to the requirements; thereby meeting various test requirements;
meanwhile, connecting sleeves 14 are further arranged at four corners of the bottom plate 6, adjusting springs 15 are arranged in the connecting sleeves 14, a plurality of telescopic rods 16 are arranged on the wedge-shaped table 7, one end of each telescopic rod 16 is inserted into each connecting sleeve 14 respectively, the telescopic rods 16 are abutted to the adjusting springs 15, and a vibrating motor 17 connected with the controller 3 is further arranged on the wedge-shaped table 7;
the vibration simulation of the wedge-shaped table 7 is realized through the vibration motor 17, so that the working condition environment which can be simulated by the equipment is further expanded, and the diversified side-looking requirements are met;
two mutually parallel adjusting slide rails 4 are arranged in the test box 1, and the two adjusting slide rails 4 are arranged in parallel along the length direction of the test box 1; the two adjusting slide rails 4 are provided with adjusting slide seats 5 in a sliding manner, and the bottom plate 6 is respectively connected with each adjusting slide seat 5; meanwhile, a fixing screw is also screwed on the side surface of the adjusting slide seat 5;
the position of the test bench 2 is flexibly adjusted by matching the adjusting slide rail 4 with the adjusting slide seat 5, so that the distance between the light source and the device to be tested is adjusted, and various test requirements are met;
meanwhile, two ends of the test box 1 are provided with protective covers 20, the test device further comprises a light source module, the light source module comprises a light source emitter 18 and a light source sensor 19, the light source emitter 18 and the light source sensor 19 are respectively arranged at two sides of the light hole 8, and meanwhile, the light source emitter 18 and the light source sensor 19 are respectively arranged in the two protective covers 20;
it should be noted that the light source emitter 18 and the light source sensor 19 are all detection devices commonly used in the prior art; the light source emitter 18 and the light source sensor 19 are isolated from the test box 1 through the protective cover 20, so that the influence of simulated rainwater and simulated dust on the light source is avoided, namely, the state that sunlight in natural environment is isolated from field environment is simulated, the test progress is improved, and the protection force of the light source module is improved;
the testing device further comprises a rainwater simulation assembly, wherein the rainwater simulation assembly comprises a water storage tank 21 and a spray pipe 22, the water storage tank 21 is arranged at the top of the testing box 1, and two ends of the spray pipe 22 are rotatably connected with the testing box 1; one end of the spray pipe 22 is closed, the other end of the spray pipe is connected with a spray pump 24 arranged at the top of the test box 1 through a water delivery hose made of rubber, and a fastening screw for fixing the spray pipe 22 is further arranged on the test box 1; the spray pipe 22 is also provided with a plurality of spray heads 23;
in order to improve the rainwater simulation capability, the test box 1 is provided with a plurality of spray pipes 22, each spray pipe 22 is respectively connected with the circulating pump, each spray pipe 22 is provided with a plurality of spray heads 23, the spray heads 23 on different spray pipes 22 have different outlet specifications, and meanwhile, one end of each spray pipe 22 connected with the circulating pump is also provided with a regulating valve;
the simulation of rainy days is realized through the device, and the simulation of different rainfall can be realized through the mode of switching the spray pipe 22; meanwhile, the angle of the water outlet is adjusted by rotating the designed spray pipe 22, so that the reality of the pre-examination simulation is improved;
the testing device further comprises a wind speed simulation device, the wind speed simulation assembly comprises a fan 25 connected with the controller 3, a connecting lug 26 is further arranged at the top of the testing box 1, a pin shaft 27 is arranged on the connecting lug 26, the fan 25 is connected with the pin shaft 27, and a fixing nut 28 is further arranged on the pin shaft 27;
the fan 25 is used for simulating the weather of strong wind, and the fan 25 is rotated to adjust the air flow direction, so that the simulation authenticity is improved;
the testing device further comprises a dust simulation assembly, wherein the dust simulation assembly comprises a dust box 29, and a charging hole and a sealing door for sealing the charging hole are arranged on the side surface of the dust box 29; the bottom of the dust box 29 is provided with a material leakage opening, and the material leakage opening is closed by a screen 30; the dust box 29 is also provided with a vibrating motor 17 connected with the controller 3;
meanwhile, an elastic module is arranged between the dust box 29 and the test box 1, and the elastic module comprises a plurality of groups of sliding rods 31 and sliding holes 32 which are matched with each other; each sliding hole 32 is arranged on the test box 1, and each sliding rod 31 is respectively connected with the dust box 29; the sliding rod 31 is further provided with a pressing nut 33 and a return spring 34, and two ends of the return spring 34 respectively abut against the pressing nut 33 and the test box 1.
Meanwhile, a controller 3 is further arranged on the test box 1, the controller 3 is an industrial computer, and the light source emitter 18, the light source sensor 19, the spray pump 24, the fan 25 and the vibration motors 17 are respectively connected with the controller 3.
When the device is used, the device to be detected coated with the photovoltaic self-cleaning coating is placed on a test bench and fixed; then adjusting the position of the test bench according to experimental requirements, and further controlling the distance between the light source module and the device to be detected;
meanwhile, simulating raining weather through a rainwater simulation assembly, simulating strong wind weather through a wind speed simulation assembly, and forming dust on the surface of a device to be detected through a dust simulation assembly; the field working condition of the photovoltaic panel is simulated through the components, the light transmittance of the self-cleaning coating under the working condition is tested, and the dustproof effect of the self-cleaning coating is confirmed through the light transmittance;
compared with the prior art, the simulation of the field working environment of the photovoltaic panel is realized through the device, so that the problem that the dust-proof and pollution-resistant capability of the self-cleaning coating of the photovoltaic panel is difficult to detect in the prior art is solved.
The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the claims, and all equivalent structures or equivalent processes using the descriptions and drawings of the present application, or direct or indirect application in other related technical fields are included in the scope of the claims of the present application.
Claims (10)
1. The testing device for the photovoltaic self-cleaning coating is characterized by comprising a testing box (1), wherein a testing table (2) for placing a device to be tested is slidably arranged in the testing box (1);
the light source module is arranged on the test box (1) and provides an analog light source for test;
the rainwater simulation assembly is arranged on the test box (1) and sprays simulated rainwater to the solar cell panel to be detected;
the wind speed simulation assembly is arranged on the test box (1) and used for providing simulated wind for the solar cell panel to be detected;
the dust simulation component is arranged on the test box (1) and used for providing simulation dust for the solar cell panel to be detected;
the controller (3), the controller (3) set up in on the test box (1), light source module, rainwater simulation subassembly, wind speed simulation subassembly and dust simulation subassembly respectively with the controller (3).
2. The testing device for the photovoltaic self-cleaning coating according to claim 1, wherein an adjusting slide rail (4) is arranged in the testing box (1), an adjusting slide seat (5) connected with the testing table (2) is arranged on the adjusting slide rail (4), and a fixing screw is arranged on the adjusting slide seat (5).
3. Test device for a photovoltaic self-cleaning coating according to claim 2, characterized in that the test bench (2) comprises a base plate (6) and a wedge-shaped bench (7) connected to each other, the wedge-shaped bench (7) being provided with light transmission holes (8) and fastening means for fixing the component to be tested.
4. A testing device for a photovoltaic self-cleaning coating according to claim 3, characterized in that the fastening device comprises an upper clamping plate (9), a lower clamping plate (10) and two parallel sliding rails (11), wherein both ends of the upper clamping plate (9) and the lower clamping plate (10) are respectively connected with the sliding rails (11) through sliding blocks (12); the upper clamping plate (9) and the lower clamping plate (10) are respectively provided with a mounting groove (13) and a fastening screw.
5. A testing device for a photovoltaic self-cleaning coating according to claim 3, characterized in that a plurality of connecting sleeves (14) are arranged on the bottom plate (6), adjusting springs (15) are arranged in the connecting sleeves (14), a plurality of telescopic rods (16) are arranged on the wedge-shaped table (7), one end of each telescopic rod (16) is inserted into each connecting sleeve (14) respectively, the telescopic rods (16) are abutted with the adjusting springs (15), and a vibrating motor (17) connected with the controller (3) is further arranged on the wedge-shaped table (7).
6. The testing device for a photovoltaic self-cleaning coating according to claim 1, wherein the light source module comprises a light source emitter (18) and a light source sensor (19) which are respectively arranged at two ends of the testing table (2), and the light source emitter (18) and the light source sensor (19) are respectively connected with the controller (3); both sides of the test box (1) are provided with light-transmitting protective covers (20), and the light source emitter (18) and the light source sensor (19) are respectively arranged in the two protective covers (20).
7. A testing device for a photovoltaic self-cleaning coating according to claim 1, characterized in that the rain simulation assembly comprises a water storage tank (21) and a spray pipe (22), the spray pipe (22) is rotationally connected with the testing tank (1), and a plurality of spray heads (23) are arranged on the spray pipe (22); and a spray pump (24) connected with the spray pipe (22) is further arranged in the water storage tank (21), and the controller (3) is connected with the spray pump (24).
8. A testing device for a photovoltaic self-cleaning coating according to claim 1, characterized in that said wind speed simulation assembly comprises a fan (25) connected to said controller (3), said testing box (1) being provided with a connection lug (26), said fan (25) being hinged to said connection lug (26) by means of a pin (27); the pin shaft (27) is also provided with a fixing nut (28).
9. A test device for a photovoltaic self-cleaning coating according to claim 1, characterized in that said dust simulation assembly comprises a dust box (29), said dust box (29) being provided with a screen (30) and a vibrating motor (17) connected to said controller (3); the dust box (29) is connected with the test box (1) through an elastic module.
10. A testing device for a photovoltaic self-cleaning coating according to claim 9, characterized in that said elastic module comprises several sets of mutually cooperating sliding bars (31) and sliding holes (32); each sliding hole (32) is arranged on the test box (1), and each sliding rod (31) is respectively connected with the dust box (29); the sliding rod (31) is further provided with a pressing nut (33) and a return spring (34), and two ends of the return spring (34) are respectively abutted against the pressing nut (33) and the test box (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321311673.XU CN220401709U (en) | 2023-05-26 | 2023-05-26 | Testing device for photovoltaic self-cleaning coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321311673.XU CN220401709U (en) | 2023-05-26 | 2023-05-26 | Testing device for photovoltaic self-cleaning coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220401709U true CN220401709U (en) | 2024-01-26 |
Family
ID=89609120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321311673.XU Active CN220401709U (en) | 2023-05-26 | 2023-05-26 | Testing device for photovoltaic self-cleaning coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220401709U (en) |
-
2023
- 2023-05-26 CN CN202321311673.XU patent/CN220401709U/en active Active
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