CN111953295A - Withstand voltage detecting system of solar cell product - Google Patents
Withstand voltage detecting system of solar cell product Download PDFInfo
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- CN111953295A CN111953295A CN201910411118.6A CN201910411118A CN111953295A CN 111953295 A CN111953295 A CN 111953295A CN 201910411118 A CN201910411118 A CN 201910411118A CN 111953295 A CN111953295 A CN 111953295A
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- withstand voltage
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- elastic conductive
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- 238000012360 testing method Methods 0.000 claims abstract description 62
- 230000005611 electricity Effects 0.000 claims abstract description 10
- 239000010410 layer Substances 0.000 claims description 70
- 238000001514 detection method Methods 0.000 claims description 36
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- 238000005260 corrosion Methods 0.000 claims description 33
- 239000002184 metal Substances 0.000 claims description 32
- 239000006260 foam Substances 0.000 claims description 26
- 239000012790 adhesive layer Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000007689 inspection Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 229920001577 copolymer Polymers 0.000 description 4
- 239000011241 protective layer Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
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- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- KVNRLNFWIYMESJ-UHFFFAOYSA-N butyronitrile Chemical compound CCCC#N KVNRLNFWIYMESJ-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010981 drying operation Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
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- 229920001821 foam rubber Polymers 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
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Classifications
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- 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
-
- 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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- Photovoltaic Devices (AREA)
Abstract
The application provides a withstand voltage detecting system of solar cell product, wherein this withstand voltage detecting system includes: first examine test table, second and examine test table, withstand voltage tester, first examine test table with the second examines test table symmetry setting, wherein first examine test table includes first elasticity conducting layer, the second examines test table and includes second elasticity conducting layer, first elasticity conducting layer with second elasticity conducting layer respectively with withstand voltage tester electricity is connected, withstand voltage tester is connected with the battery product electricity that awaits measuring. This application utilizes the elasticity conducting layer to have the characteristic that can provide good electric conductivity under certain ambient pressure, makes it can closely laminate with the solar cell product for the solar cell product that is surveyed is in comprehensive contact and the even test environment of pressure, can also avoid simultaneously influencing the test result because of the pressure is inhomogeneous, thereby replaces the test environment of water or other medium.
Description
Technical Field
The application relates to the technical field of photovoltaics, in particular to a withstand voltage detection system for a solar cell product.
Background
In the solar cell in the prior art, a solar cell chip with a photoelectric conversion layer is formed by vertically packaging an insulating protective layer and a glue film, and the insulating protective layer can be a plastic film with good light transmittance. During the manufacturing process of the solar cell, the insulating protective layer and the adhesive film are possibly damaged due to misoperation or carrying, so that the service life of the solar cell product is shortened, and even safety accidents occur.
In order to verify the quality and safety of a solar cell product (hereinafter, referred to as a cell product), a withstand voltage test (Hi-Pot test) is required. Specifically, the test method is performed by placing the battery product in a conductive medium (water), and after the test is finished, a drying operation is performed to remove the conductive medium remaining on the surface of the battery product.
However, the current testing methods have the following disadvantages:
1. if the conductive medium is not completely removed, foreign matter residues exist on the surface of the treated product, and the battery product still needs to be cleaned for the second time, so that the testing process is long in time consumption;
2. in the testing process, the conductive medium is remained in the plug interface of the battery product, which easily causes contact corrosion and further influences the delivery quality of the battery product.
Disclosure of Invention
In view of the above, embodiments of the present application provide a withstand voltage detection system for a solar cell product, so as to overcome the above problems in the prior art.
The embodiment of the application provides a withstand voltage detecting system of solar cell product, and this withstand voltage detecting system includes: first examine test table, second and examine test table, withstand voltage tester, first examine test table with the second examines test table symmetry setting, wherein first examine test table includes first elasticity conducting layer, the second examines test table and includes second elasticity conducting layer, first elasticity conducting layer with second elasticity conducting layer respectively with withstand voltage tester electricity is connected, withstand voltage tester is connected with the battery product electricity that awaits measuring.
In an embodiment of the present application, the first inspection station further includes: first conductive bonding layer, first corrosion-resistant metal plate, first insulating plate, upper braced frame, wherein first elasticity conducting layer passes through first conductive bonding layer with first corrosion-resistant metal plate is connected, first corrosion-resistant metal plate with first insulating plate is connected, first insulating plate is fixed in upper braced frame's lower surface.
According to an embodiment of the present application, the second inspection station further comprises: the second elastic conducting layer is connected with the second corrosion-resistant metal plate through the second conducting bonding layer, the second corrosion-resistant metal plate is connected with the second insulating plate, the second insulating plate is fixed on the upper surface of the lower supporting frame, and the limiting strip is fixed at the edge of the second insulating plate.
In an embodiment of the present application, the battery product is disposed between the first elastic conductive layer and the second elastic conductive layer, and the battery product is hermetically wrapped by the first elastic conductive layer and the second elastic conductive layer.
In an embodiment of the present application, the first elastic conductive layer and the second elastic conductive layer are conductive foam.
In an embodiment of the present application, the method further includes: and the driving mechanism is connected with the first detection table and used for controlling the first detection table to move to the second detection table to be in contact with the limiting strip, and compressing the first elastic conducting layer and the second elastic conducting layer.
In an embodiment of the present application, the compressibility of the elastic conductive layer is 30% to 80%.
In an embodiment of the present application, the pressure resistance detection system further includes: and the high-voltage safety protection device is electrically connected with the voltage-withstanding detector and is used for protecting the voltage-withstanding detector and the power utilization safety of the battery product to be detected.
Through the withstand voltage detecting system of solar cell product that this application embodiment provided, utilize the elasticity conducting layer to have the characteristic that can provide good electric conductivity under certain ambient pressure, make it can closely laminate with the solar cell product for the solar cell product that is surveyed is in comprehensive contact and the even test environment of pressure, can also avoid simultaneously influencing the test result because of the pressure is inhomogeneous, thereby replaces the test environment of water or other medium.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a sectional view of a pressure resistance test system provided in an embodiment of the present application;
fig. 2 is a plan view of a pressure resistance detection system provided in an embodiment of the present application;
fig. 3 is a detailed structural view of a pressure resistance detection system provided in an embodiment of the present application;
fig. 4 is a sectional view of a battery product during testing by the voltage withstand testing system according to the embodiment of the present application;
fig. 5 is a structural diagram of pressure resistance detection systems provided in the embodiments of the present application with different limiting heights.
Description of the drawings:
1 first detection table
2 second detection table
3 withstand voltage detector
5 first elastic conductive layer
6 second elastic conductive layer
7 Battery product to be tested
8 first conductive adhesive layer
9 first corrosion-resistant metal plate
10 first insulating plate
11 upper layer supporting frame
12 second conductive adhesive layer
13 second corrosion-resistant metal plate
14 second insulating plate
15 spacing strip
16 lower layer support frame
17 drive mechanism
18 high-voltage safety protection device
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Fig. 1 is a cross-sectional view of a pressure resistance test system according to an embodiment of the present application. Referring to fig. 2, the withstand voltage detecting system of the solar cell product includes: first examine test table 1, the second examine test table 2, withstand voltage detector 3, first examine test table 1 with the second examines test table 2 symmetry setting, wherein first examine test table 1 and include first elasticity conducting layer 5, the second examines test table 2 and includes second elasticity conducting layer 6, first elasticity conducting layer 5 with second elasticity conducting layer 6 respectively with withstand voltage tester 3 electricity is connected, withstand voltage tester 3 is connected with the 7 electricity of the battery product that awaits measuring.
In an embodiment of the present application, the first inspection station 1 further includes: the first elastic conductive layer 5 is connected with the first corrosion-resistant metal plate 9 through the first conductive bonding layer 8, the first corrosion-resistant metal plate 9 is connected with the first insulation plate 10, and the first insulation plate 10 is fixed on the lower surface of the upper support frame 11.
According to an embodiment of the present application, the second inspection station 2 further includes: the flexible printed circuit board comprises a second conductive adhesive layer 12, a second corrosion-resistant metal plate 13, a second insulating plate 14, a limiting strip 15 and a lower supporting frame 16, wherein the second elastic conductive layer 6 is connected with the second corrosion-resistant metal plate 13 through the second conductive adhesive layer 12, the second corrosion-resistant metal plate 13 is connected with the second insulating plate 14, the second insulating plate 14 is fixed on the upper surface of the lower supporting frame, and the limiting strip 15 is fixed at the edge of the second insulating plate 14.
Fig. 4 is a cross-sectional view of a battery product during testing by the voltage withstand testing system according to the embodiment of the present application. In an embodiment of the present application, the battery product 7 to be tested is disposed between the first elastic conductive layer 5 and the second elastic conductive layer, and the battery product is hermetically wrapped by the first elastic conductive layer 5 and the second elastic conductive layer.
In an embodiment of the present application, the first elastic conductive layer 5 and the second elastic conductive layer are conductive foam.
In an embodiment of the present application, the method further includes: and the driving mechanism 17 is connected with the first detection table and used for controlling the first detection table to move to the second detection table to be in contact with the limiting strip 15 so as to compress the battery product.
In an embodiment of the present application, the compressibility of the elastic conductive layer is 30% to 80%.
In an embodiment of the present application, the pressure resistance detection system further includes: and the high-voltage safety protection device 18 is electrically connected with the current detector and is used for protecting the current detector and the electricity utilization safety of the battery product 7 to be detected.
Examples
The present application will be described in detail with reference to a specific embodiment, however, it should be noted that the specific embodiment is only for better describing the present application and should not be construed as an undue limitation on the present application.
Fig. 3 is a detailed structural diagram of the pressure resistance detection system according to the embodiment of the present application. This withstand voltage detecting system of solar cell product includes: the device comprises a first detection table 1, a second detection table 2 and a withstand voltage tester 3, wherein the first detection table 1 and the second detection table 2 are symmetrically arranged;
the first inspection station 1 includes: the first conductive bonding layer 8, the first corrosion-resistant metal plate 9, the first insulating plate 10, the upper layer braced frame 11, wherein the first elastic conductive plate pass through the first conductive bonding layer 8 with the first corrosion-resistant metal plate 9 is connected, the first corrosion-resistant metal plate 9 with the first insulating plate 10 is connected, the first insulating plate 10 is fixed in the lower surface of the upper layer braced frame 11.
The second inspection station includes: the flexible printed circuit board comprises a second conductive bonding layer 12, a second corrosion-resistant metal plate 13, a second insulating plate 14, a limiting strip 15 and a lower layer supporting frame, wherein the second elastic conductive plate is connected with the second corrosion-resistant metal plate 13 through the second conductive bonding layer 12, the second corrosion-resistant metal plate 13 is connected with the second insulating plate 14, the second insulating plate 14 is fixed on the upper surface of the lower layer supporting frame, and the limiting strip 15 is fixed at the edge of the second insulating plate 14.
The first conductive adhesive layer 8 and the second conductive adhesive layer 12 serve to connect the corrosion-resistant metal plate and the elastic conductive layer and uniformly transmit high-voltage current on the corrosion-resistant metal plate to the elastic conductive layer. The elastic conducting layer is used for coating each outer surface of the whole battery product to be tested and forming uniform pressure on each outer surface, so that the current can be uniformly conducted, and the outer surface of the product to be tested is protected from influencing the appearance quality due to testing. When a solar cell product is detected, the cell product to be detected needs to be completely wrapped by two conductive foam (as elastic conductive layers), so that the accuracy of a detection result is ensured.
The first insulating plate 10 and the second insulating plate 14 function to fix the first corrosion-resistant metal plate and the second corrosion-resistant metal plate 13, respectively. In addition, the test system also has the function of insulating and isolating the test system and the shell so as to protect the safety of the whole tester.
The first corrosion-resistant metal plate and the second corrosion-resistant metal plate 13 are respectively electrically connected with the voltage tester 3, and the voltage tester 3 is electrically connected with a battery product to be tested. The corrosion-resistant metal plate is used for bearing the elastic conductive plate and can ensure that high-voltage current is uniformly distributed on the surface of a battery product to be tested.
The different thickness of the stop strips 15 shown in fig. 5 are combined with different thickness of the stop strips (15.1, 15.2, 15.3) according to the different thickness of the solar cell product. In addition, in the actual detection process, the driving mechanism 17 is used for controlling the first detection platform to move to the second detection platform to the limit strip 15 with the preset height and to contact with the second detection platform, the battery product is compressed, and meanwhile, the compression degree of the conductive foam can be controlled. Particularly, when testing solar cell products with different thickness specifications, the compression rate of the conductive foam needs to be in an optimal range of 30% -80%. In addition, in this application embodiment, the spacing strip can be flexible material or rubber with magnetism.
In addition, in the actual detection process, a certain static current may remain in the elastic conductive plates of the first detection table and the second detection table, so in order to ensure the safety of equipment and personnel, a high-voltage safety protection device 18 is arranged on a connecting wire connected with the anode of the voltage-withstanding tester. The main functions of the high-voltage safety protection device 18 are: and during testing, connecting the anode of the voltage-resistant tester with the corrosion-resistant metal plates of the upper test table and the lower test table or the anode and the cathode of the product to be tested.
The conductive foam used in the embodiments of the present application is used as the elastic conductive layer because the material is low in cost and is particularly suitable for use in high performance shielding applications requiring good conformability. In an embodiment of the present application, the conductive foam includes: closed cell polymer foam and a conductive medium dispersed in the closed cell polymer foam. Specifically, the closed cell polymeric foam may be selected from at least one of the following groups: closed-cell polyurethane foam, closed-cell styrene-butadiene rubber foam, closed-cell acrylate foam, closed-cell vinyl acetate foam, closed-cell vinylidene chloride foam, closed-cell butyronitrile foam, closed-cell organosilicon foam, closed-cell acrylamide foam, closed-cell natural rubber foam, closed-cell polyvinyl chloride foam, closed-cell polysulfide rubber foam, closed-cell styrene-acrylate copolymer foam, closed-cell vinyl acetate-acrylate copolymer foam, closed-cell organosilicon-acrylate copolymer foam, and closed-cell modified organosilicon-acrylate copolymer foam. The conductive medium may be selected from at least one of the following groups: conductive particles, conductive fibers, and a conductive mesh.
In the embodiment of the application, the conductivity and the compressibility of the conductive foam are utilized to enable the conductive foam to be tightly attached to a solar cell product, and the withstand voltage detection method is also suitable for withstand voltage test of a special-shaped product. For a waterproof layer, an insulating protective layer, an adhesive film and the like on a solar cell product, leakage current generated by damage to any part can be led out and detected, so that the accuracy of voltage-resistant detection is effectively improved.
Through the withstand voltage detecting system of solar cell product that this application embodiment provided, utilize the electrically conductive bubble cotton to have the characteristic that can provide good electric conductivity under certain ambient pressure, make it can closely laminate with the solar cell product for the solar cell product that is surveyed is in comprehensive contact and the even test environment of pressure, can also avoid simultaneously influencing the test result because of the pressure is inhomogeneous, thereby replaces the test environment of water or other medium. The application range of the detection method is not limited to the detection of photovoltaic modules or products, and the detection method can also be applied to other products needing insulation and voltage resistance tests.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. Withstand voltage detecting system of solar cell product, its characterized in that includes: first examine test table (1), the second examines test table (2), withstand voltage tester (3), first examine test table (1) and the second examines test table (2) symmetry setting, wherein first examine test table (1) including first elasticity conducting layer (5), the second examines test table (2) and includes second elasticity conducting layer (6), first elasticity conducting layer (5) with second elasticity conducting layer (6) respectively with withstand voltage tester (3) electricity is connected, withstand voltage tester (3) are connected with the battery product (7) electricity that awaits measuring.
2. The pressure-resistant test system according to claim 1, wherein the first test stand (1) further comprises: first conductive bonding layer (8), first corrosion-resistant metal plate (9), first insulating plate (10), upper braced frame (11), wherein first elastic conducting layer (5) pass through first conductive bonding layer (8) with first corrosion-resistant metal plate (9) are connected, first corrosion-resistant metal plate (9) with first insulating plate (10) are connected, first insulating plate (10) are fixed in the lower surface of upper braced frame (11).
3. The pressure-resistant test system according to claim 1, wherein the second test stage (2) further comprises: the flexible printed circuit board comprises a second conductive adhesive layer (12), a second corrosion-resistant metal plate (13), a second insulating plate (14), a limiting strip (15) and a lower supporting frame (16), wherein the second elastic conductive layer (6) is connected with the second corrosion-resistant metal plate (13) through the second conductive adhesive layer (12), the second corrosion-resistant metal plate (13) is connected with the second insulating plate (14), the second insulating plate (14) is fixed on the upper surface of the lower supporting frame (16), and the limiting strip (15) is fixed at the edge of the second insulating plate (14).
4. The withstand voltage detecting system according to claim 1, wherein the battery product under test (7) is disposed between the first elastic conductive layer (5) and the second elastic conductive layer (6), and the battery product under test (7) is hermetically wrapped by the first elastic conductive layer (5) and the second elastic conductive layer (6).
5. The withstand voltage detecting system according to claim 1, wherein the first elastic conductive layer (5) and the second elastic conductive layer (6) are conductive foam.
6. The pressure resistance test system according to claim 3, further comprising:
and the driving mechanism (17) is connected with the first detection table (1) and used for controlling the first detection table (1) to move to the second detection table (2) to be in contact with the limiting strip (15) and compress the first elastic conductive layer (5) and the second elastic conductive layer (6).
7. The withstand voltage detecting system according to claim 6, wherein the compressibility of the first elastic conductive layer (5) and the second elastic conductive layer is 30% to 80%.
8. The pressure resistance test system according to claim 1, further comprising:
the high-voltage safety protection device (18) is electrically connected with the voltage-withstanding detector (3) and is used for protecting the voltage-withstanding detector (3) and the electricity safety of the battery product (7) to be detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910411118.6A CN111953295A (en) | 2019-05-16 | 2019-05-16 | Withstand voltage detecting system of solar cell product |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910411118.6A CN111953295A (en) | 2019-05-16 | 2019-05-16 | Withstand voltage detecting system of solar cell product |
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| CN111953295A true CN111953295A (en) | 2020-11-17 |
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| CN201910411118.6A Pending CN111953295A (en) | 2019-05-16 | 2019-05-16 | Withstand voltage detecting system of solar cell product |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024245166A1 (en) * | 2023-05-26 | 2024-12-05 | 荣耀终端有限公司 | Conductive foam and manufacturing method therefor, and electronic device |
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2019
- 2019-05-16 CN CN201910411118.6A patent/CN111953295A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024245166A1 (en) * | 2023-05-26 | 2024-12-05 | 荣耀终端有限公司 | Conductive foam and manufacturing method therefor, and electronic device |
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Address after: 100076 6015, 6th floor, building 8, 9 Yingshun Road, Yinghai Town, Daxing District, Beijing Applicant after: Beijing Dingrong Photovoltaic Technology Co.,Ltd. Address before: 3001, room 6, building No. 7, Rongchang East Street, Beijing economic and Technological Development Zone, Beijing, Daxing District 100176, China Applicant before: BEIJING APOLLO DING RONG SOLAR TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20210425 Address after: 518000 Guangdong city of Shenzhen province Qianhai Shenzhen Hong Kong cooperation zone before Bay Road No. 1 building 201 room A (located in Shenzhen Qianhai business secretary Co. Ltd.) Applicant after: Hongyi Technology Co.,Ltd. Address before: 100076 6015, 6th floor, building 8, 9 Yingshun Road, Yinghai Town, Daxing District, Beijing Applicant before: Beijing Dingrong Photovoltaic Technology Co.,Ltd. |
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