CN219893263U - Fixing device and fixing system of photovoltaic connector and photovoltaic power generation system - Google Patents
Fixing device and fixing system of photovoltaic connector and photovoltaic power generation system Download PDFInfo
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- CN219893263U CN219893263U CN202320935655.2U CN202320935655U CN219893263U CN 219893263 U CN219893263 U CN 219893263U CN 202320935655 U CN202320935655 U CN 202320935655U CN 219893263 U CN219893263 U CN 219893263U
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- 238000010248 power generation Methods 0.000 title claims abstract description 17
- 238000005452 bending Methods 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 5
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000004080 punching Methods 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
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of photovoltaic connectors, in particular to a fixing device and a fixing system of a photovoltaic connector and a photovoltaic power generation system. The fixing device of the photovoltaic connector comprises a first limiting piece, a second limiting piece, a supporting piece and a fixing piece, wherein the fixing piece comprises a bending part, a first strip-shaped part and a second strip-shaped part which are sequentially connected and integrally formed, the second limiting piece is connected with the tail end of the second strip-shaped part, one end of the supporting piece is connected with the first strip-shaped part, the other end of the supporting piece is connected with the first limiting piece, the first limiting piece abuts against the second limiting piece, and the bending part faces the second strip-shaped part. Through with first locating part and second locating part cooperation centre gripping in the fixing device of back cardboard fixed photovoltaic connector, the fixed mode of photovoltaic connector is held in the centre gripping space that support piece and bending part defined, has replaced current adoption nail joint that punches to fix photovoltaic connector's mode, and photovoltaic connector's simple structure, its fixed mode is convenient, makes daily maintenance more convenient.
Description
Technical Field
The utility model relates to the technical field of photovoltaic structures, in particular to a fixing device and a fixing system of a photovoltaic connector and a photovoltaic power generation system.
Background
In photovoltaic power plants, the electrical quantities of a large number of components need to be brought together and then into an inverter, where cables and photovoltaic connectors have to be relied upon. The photovoltaic connector is a key device for mutual connection among all components in the photovoltaic power generation system, the connection effect of the photovoltaic connector is particularly important, and once the joint points among the photovoltaic components are loosened, poor contact is caused, and the direct current arc discharge phenomenon is very easy to occur.
In the prior art, the photovoltaic connector is fixed by adopting a punching and nailing mode, the installation is very troublesome, the structure is very complex, and the assembly is inconvenient to daily maintenance and replacement.
Disclosure of Invention
In view of the above, the utility model provides a fixing device, a fixing system and a photovoltaic power generation system for a photovoltaic connector, which are used for solving the problems of troublesome installation and complex structure of a fixing mode of the photovoltaic connector in the prior art.
In order to solve the technical problems, the technical scheme adopted by the utility model is to provide a fixing device of a photovoltaic connector, which is used for being installed on a back clamping plate of a solar panel and fixing the photovoltaic connector, wherein the fixing device of the photovoltaic connector comprises a first limiting piece, a second limiting piece, a supporting piece and a fixing piece, the fixing piece comprises a bending part, a first strip-shaped part and a second strip-shaped part which are sequentially connected and integrally formed, the second limiting piece is connected with the tail end of the second strip-shaped part, one end of the supporting piece is connected with the first strip-shaped part, the other end of the supporting piece is connected with the first limiting piece, the first limiting piece is abutted against the second limiting piece, and the bending part bends towards the second strip-shaped part; the first limiting piece and the second limiting piece are matched to clamp the back clamping plate of the solar panel, and the supporting piece and the bending portion define a clamping space to clamp the photovoltaic connector.
Preferably, the curved portion is semi-circular in shape.
Preferably, the free end of the curved portion faces the first strip portion.
Preferably, the other end of the support member is height-adjustable on the first bar portion.
Preferably, the first bar-shaped part is provided with a plurality of clamping grooves, different clamping grooves correspond to different heights, and the height of the other end of the supporting piece on the first bar-shaped part is adjusted by inserting different clamping grooves.
Preferably, the support is an elastic sheet.
Preferably, the first limiting member and the second limiting member are cylindrical limiting members.
Preferably, the first limiting piece and the second limiting piece are made of rubber materials.
The utility model also provides a fixing system of the photovoltaic connector, which comprises the photovoltaic connector and the fixing device of the photovoltaic connector, wherein the photovoltaic connector is clamped in the clamping spaces of the two fixing devices.
The utility model further provides a photovoltaic power generation system for solving the technical problems, the photovoltaic power generation system comprises a solar panel and the fixing system of the photovoltaic connector, the solar panel comprises a back clamping plate, and the back clamping plate is clamped between the first limiting piece and the second limiting piece.
Compared with the prior art, the fixing device of the photovoltaic connector provided by the embodiment of the utility model has the following advantages:
1. the fixing device of the photovoltaic connector comprises a first limiting piece, a second limiting piece, a supporting piece and a fixing piece, wherein the fixing piece comprises a bending part, a first strip-shaped part and a second strip-shaped part which are sequentially connected and integrally formed, the second limiting piece is connected with the tail end of the second strip-shaped part, one end of the supporting piece is connected with the first strip-shaped part, the other end of the supporting piece is connected with the first limiting piece, the first limiting piece abuts against the second limiting piece, and the bending part bends towards the second strip-shaped part. The fixing device of the photovoltaic connector is fixed by matching the first limiting piece with the second limiting piece to clamp the back clamping plate of the solar panel, and the photovoltaic connector is clamped by defining a clamping space between the supporting piece and the bending part. This kind of with photovoltaic connector's fixing device centre gripping in solar cell panel's back cardboard and with photovoltaic connector direct centre gripping to its fixed mode in established centre gripping space, replaced current adoption nail joint that punches to fix photovoltaic connector's mode, can make photovoltaic connector's fixed mode installation more convenient, the structure is simpler for it is more convenient that daily maintenance and change the subassembly.
2. According to the fixing device of the photovoltaic connector, the bending part is arranged to be in a semicircular arc shape, so that the shape of the fixing device of the photovoltaic connector is matched with that of the photovoltaic connector, the wrapping performance is stronger, and the fixing of the photovoltaic connector can be firmer.
3. According to the fixing device of the photovoltaic connector, the free end of the semicircular arc-shaped bending part faces the first strip-shaped part, so that the situation that the connector and the fixing device of the photovoltaic connector are loose in the fixing process can be prevented.
4. According to the fixing device of the photovoltaic connector, the height of the other end of the supporting piece on the first strip-shaped part is adjustable, so that the fixing device of the photovoltaic connector can be adapted to various types of photovoltaic connectors, and the adaptability and reusability of the fixing device of the photovoltaic connector are improved.
5. According to the fixing device of the photovoltaic connector, the plurality of clamping grooves are formed in the first strip-shaped part, different clamping grooves correspond to different heights, the heights of the other ends of the supporting pieces on the first strip-shaped part are adjusted through inserting the different clamping grooves, the clamping spaces defined by the supporting pieces and the bending parts are adjusted through inserting the supporting pieces into the different clamping grooves, adjustment is more convenient, and convenience in replacing and fixing the fixing device of the photovoltaic connector in different types of photovoltaic connectors is improved.
6. According to the fixing device of the photovoltaic connector, the supporting piece is the elastic piece, when the photovoltaic connector is installed and inserted between the supporting piece and the inner arc of the bending part, the supporting piece can have enough abdication and buffer space, the nondestructive insertion of the photovoltaic connector is facilitated, and the damage of devices caused by hard collision of the supporting piece and the photovoltaic connector is prevented.
7. According to the fixing device of the photovoltaic connector, the first limiting piece and the second limiting piece are cylindrical limiting pieces, when the fixing device of the photovoltaic connector is installed on the back clamping plate of the solar cell panel, the back clamping plate of the solar cell panel can easily and labor-effectively penetrate through the gap between the first limiting piece and the second limiting piece, and the back clamping plate of the solar cell panel is drawn into the gap between the first limiting piece and the second limiting piece along the cylindrical sliding direction, so that the simplicity of installing the fixing device of the photovoltaic connector is improved.
8. According to the fixing device of the photovoltaic connector, the first limiting piece and the second limiting piece are made of rubber materials, so that the first limiting piece and the second limiting piece have elastic force, when the fixing device of the photovoltaic connector is installed on the back clamping plate of the solar cell panel, buffering force and elastic force are provided for forced insertion of the back clamping plate, and the condition that the clamping force between the first limiting piece and the second limiting piece damages the back clamping plate of the solar cell panel when the forced insertion is installed is prevented.
9. The fixing system of the photovoltaic connector and the photovoltaic power generation system provided by the utility model have the same functions as the fixing device of the photovoltaic connector, and are not described herein.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Wherein:
fig. 1 is a schematic perspective view of a fixing device of a photovoltaic connector according to a first embodiment of the present utility model;
fig. 2 shows a side view of a fixing device of a photovoltaic connector according to a first embodiment of the present utility model;
fig. 3 is a schematic perspective view of a fixing system of a photovoltaic connector according to a second embodiment of the present utility model;
fig. 4 is a schematic perspective view of a photovoltaic power generation system according to a third embodiment of the present utility model;
FIG. 5 shows an enlarged schematic view of A in FIG. 4;
fig. 6 shows a schematic connection diagram of a back clamping plate, a first limiting member and a second limiting member of a photovoltaic power generation system according to a third embodiment of the present utility model.
The attached drawings are used for identifying and describing:
1. a fixing device of the photovoltaic connector; 2. a fixation system for the photovoltaic connector; 3. a photovoltaic power generation system;
11. a first limiting member; 12. a second limiting piece; 13. a support; 14. a fixing member; 15. clamping space
A compartment; 21. a photovoltaic connector; 31. a solar cell panel;
141. a bending portion; 142. a first strip-shaped portion; 143. a second strip-shaped portion; 311. a back clamping plate;
1421. a clamping groove.
Detailed Description
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Embodiments of the utility model are illustrated in the accompanying drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
It will be understood that the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," and/or the like, specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only. In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations. Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "disposed," "configured," "connected," "coupled," and the like are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may 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 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.
Example 1
Referring to fig. 1, a fixing device 1 of a photovoltaic connector is disclosed in a first embodiment of the present utility model, which is used for being mounted on a back clamping board of a solar panel and fixing the photovoltaic connector, the fixing device 1 of the photovoltaic connector includes a first limiting member 11, a second limiting member 12, a supporting member 13 and a fixing member 14, and the fixing member 14 includes a bending portion 141, a first strip portion 142 and a second strip portion 143 which are sequentially connected and integrally formed. Specifically, the head end of the bending portion 141 is a free end, the tail end of the bending portion 141 is connected to the head end of the first strip portion 142, the tail end of the first strip portion 142 is connected to the head end of the second strip portion, and the tail end of the second strip portion 143 is connected to the second stopper 12. One end of the supporting member 13 is connected with the first bar-shaped portion 142, the other end of the supporting member 13 is connected with the first limiting member 11, the first limiting member 11 abuts against the second limiting member 12, and the bending portion 141 is bent toward the second bar-shaped portion 143.
Specifically, the bent portion 141 has a semicircular arc shape, and a free end of the bent portion 141 faces the first bar portion 142. By providing this, the shape of the fixing device 1 of the photovoltaic connector can be matched with the shape of the photovoltaic connector 21, the wrapping property is stronger, and the fixing of the photovoltaic connector can be more stable and compatible.
Specifically, the first limiting member 11 has a slit, and the first limiting member 11 is connected to the other end of the supporting member 13 through the slit. Similarly, the second limiting member 12 has a slit, and the second limiting member 12 is connected to the end of the second strip portion through the slit.
In the embodiment of the utility model, the fixing device 1 of the photovoltaic connector is fixed by matching the first limiting member 11 with the second limiting member 12 to clamp the back clamping plate of the solar panel, and the photovoltaic connector is clamped by defining a clamping space 15 between the supporting member 13 and the bending portion 141. This kind of with photovoltaic connector's fixing device 1 centre gripping in solar cell panel's back cardboard and with photovoltaic connector direct centre gripping to its fixed mode in given centre gripping space 15, replaced current adoption punching nail and connect and fix photovoltaic connector's mode, can make photovoltaic connector's fixed mode install more convenient, and the structure is simpler for daily maintenance and change the subassembly are more convenient.
Further, the height of the other end of the supporting member 13 on the first strip-shaped portion 142 is adjustable, so that the clamping space 15 can be adjusted between the supporting member 13 and the first strip-shaped portion 142, the fixing device 1 of the photovoltaic connector can be adapted to various types of photovoltaic connectors, and the adaptability and reusability of the fixing device 1 of the photovoltaic connector are improved.
Referring to fig. 2, in particular, the first strip portion 142 is provided with a plurality of clamping grooves 1421, and different clamping grooves 1421 correspond to different heights, and the height of the other end of the supporting member 13 on the first strip portion 142 is adjusted by inserting different clamping grooves 1421. Through setting up a plurality of draw-in grooves 1421 on first bar 142, then make support piece 13 insert different draw-in grooves 1421 and adjust the centre gripping space 15 size that support piece 13 and bending part 141 bound, make to adjust more conveniently, improve the convenience when changing the photovoltaic connector of fixing device 1 of photovoltaic connector fixed different models.
Specifically, the supporting member 13 is an elastic piece, and when the photovoltaic connector is installed and inserted between the supporting member 13 and the inner arc of the bending portion 141, the supporting member 13 can have enough abdication and buffering space, which is beneficial to the nondestructive insertion of the photovoltaic connector 21, and prevents the occurrence of damage to the device caused by hard collision between the supporting member 13 and the photovoltaic connector.
Specifically, the supporting piece 13 is made of a rigid material, and the rigid material can enable the supporting piece 13 to have a certain bearing capacity to supply to bear the photovoltaic connector, and can supply the force of the first limiting piece 11 to the second limiting piece 12 when the first limiting piece 11 and the second limiting piece 12 are matched to clamp the back clamping plate of the solar panel, so that clamping is firmer.
Specifically, the first limiting member 11 and the second limiting member 12 are cylindrical limiting members, when the fixing device 1 of the photovoltaic connector is mounted on the back clamping plate of the solar panel, the back clamping plate of the solar panel can easily and laborsaving pass through the gap between the first limiting member 11 and the second limiting member 12, so that the back clamping plate of the solar panel is scratched into the gap between the first limiting member 11 and the second limiting member 12 along the cylindrical sliding direction, and the simplicity of mounting the fixing device 1 of the photovoltaic connector is improved.
Specifically, the first limiting piece 11 and the second limiting piece 12 are made of rubber, the rubber enables the first limiting piece 11 and the second limiting piece 12 to have elastic force, when the fixing device 1 of the photovoltaic connector is installed on the back clamping plate of the solar cell panel, buffering force and elastic force are provided for forced plugging of the back clamping plate of the solar cell panel, and the clamping force between the first limiting piece 11 and the second limiting piece 12 can damage the back clamping plate of the solar cell panel when forced plugging is prevented.
For easy understanding, the embodiment of the present utility model specifically describes how to mount the fixing device 1 of the photovoltaic connector on the back clamping plate of the solar panel and how to fix the photovoltaic connector, when the fixing device 1 of the photovoltaic connector is mounted on the back clamping plate of the solar panel, the fixing device 1 of the photovoltaic connector is first gripped to align the gap between the first limiting member 11 and the second limiting member 12 with the back clamping plate of the solar panel, then the back clamping plate of the solar panel is pressed to be inserted into the gap between the first limiting member 11 and the second limiting member 12, and finally the first limiting member 11 and the second limiting member 12 are respectively located on two sides of the back clamping plate of the solar panel; in fixing the photovoltaic connector, the photovoltaic connector is first lifted to be horizontally aligned with the fixing device 1 of two or more photovoltaic connectors, then inserted from one end of the fixing device 1 of the photovoltaic connector, and finally the photovoltaic connector is fixed in the space between the bent portion 141 of the fixing member 14 and the supporting member 13. It should be noted that, the fixing device 1 of the photovoltaic connector may be installed on the back clamping board of the solar panel, and then the photovoltaic connector is fixed on the basis; the photovoltaic connector can be fixed, and then the fixing device 1 of the photovoltaic connector is arranged on the back clamping plate of the solar panel. The present utility model is not particularly limited thereto.
Example two
Referring to fig. 3, a second embodiment of the present utility model discloses a fixing system 2 for a photovoltaic connector, wherein the fixing system 2 for a photovoltaic connector includes a photovoltaic connector 21 and at least two fixing devices 1 for the photovoltaic connector, and the photovoltaic connector 21 is clamped in a clamping space 15 of the fixing devices 1 for the at least two photovoltaic connectors. The embodiment of the utility model is specifically described with the photovoltaic connector 21 clamped in the clamping space 15 of the fixing device 1 of two photovoltaic connectors, the photovoltaic connector 21 is positioned between the inner arcs of the two bending parts and the two supporting pieces, and the photovoltaic connector 21 needs to be directly inserted into the two side openings of the fixing device 1 of two photovoltaic connectors for installation during installation.
Alternatively, the photovoltaic connector 21 may be an MC3 connector or an MC4 connector. In an embodiment of the present utility model, the photovoltaic connector 21 is an MC4 connector.
The function of the fixing system 2 of the photovoltaic connector according to the second embodiment of the present utility model is the same as that of the fixing device 1 of the photovoltaic connector according to the first embodiment, and will not be described herein.
Example III
Referring to fig. 4 and 5, a photovoltaic power generation system 3 is disclosed in a third embodiment of the present utility model, wherein the photovoltaic power generation system 3 includes a solar panel 31 and a fixing system 2 of a photovoltaic connector, the solar panel 31 includes a back clamping plate 311, and the back clamping plate 311 is clamped between a first limiting member 11 and a second limiting member 12.
The function of the photovoltaic power generation system 3 provided in the third embodiment of the present utility model is the same as that of the fixing system 2 of the photovoltaic connector provided in the second embodiment, and will not be described here again.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (10)
1. The utility model provides a fixing device of photovoltaic connector for install in solar cell panel's back cardboard and fix photovoltaic connector, its characterized in that: the fixing device of the photovoltaic connector comprises a first limiting piece, a second limiting piece, a supporting piece and a fixing piece, wherein the fixing piece comprises a bending part, a first strip-shaped part and a second strip-shaped part which are sequentially connected and integrally formed, the second limiting piece is connected with the tail end of the second strip-shaped part, one end of the supporting piece is connected with the first strip-shaped part, the other end of the supporting piece is connected with the first limiting piece, the first limiting piece abuts against the second limiting piece, and the bending part bends towards the second strip-shaped part;
the first limiting piece and the second limiting piece are matched to clamp the back clamping plate of the solar panel, and the supporting piece and the bending portion define a clamping space to clamp the photovoltaic connector.
2. The photovoltaic connector securing device of claim 1, wherein: the bending part is in a semicircular arc shape.
3. The photovoltaic connector securing device of claim 1, wherein: the free end of the curved portion faces the first strip portion.
4. The photovoltaic connector securing device of claim 1, wherein: the other end of the support member is height-adjustable on the first strip portion.
5. The photovoltaic connector fixture of claim 4, wherein: the first strip-shaped part is provided with a plurality of clamping grooves, different clamping grooves correspond to different heights, and the height of the other end of the supporting piece on the first strip-shaped part is adjusted by inserting different clamping grooves.
6. The photovoltaic connector securing device of claim 1, wherein: the support member is an elastic sheet.
7. The photovoltaic connector securing device of claim 1, wherein: the first limiting piece and the second limiting piece are cylindrical limiting pieces.
8. The photovoltaic connector securing device of claim 1, wherein: the first limiting piece and the second limiting piece are made of rubber materials.
9. A photovoltaic connector securing system, characterized by: the fixing system comprises a photovoltaic connector and at least two fixing devices of the photovoltaic connector according to any one of claims 1-8, the photovoltaic connector being clamped in the clamping spaces of the two fixing devices.
10. A photovoltaic power generation system, characterized in that: the photovoltaic power generation system comprises a solar panel and the photovoltaic connector fixing system as claimed in claim 9, wherein the solar panel comprises a back clamping plate, and the back clamping plate is clamped between the first limiting piece and the second limiting piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320935655.2U CN219893263U (en) | 2023-04-14 | 2023-04-14 | Fixing device and fixing system of photovoltaic connector and photovoltaic power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320935655.2U CN219893263U (en) | 2023-04-14 | 2023-04-14 | Fixing device and fixing system of photovoltaic connector and photovoltaic power generation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219893263U true CN219893263U (en) | 2023-10-24 |
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ID=88410125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320935655.2U Active CN219893263U (en) | 2023-04-14 | 2023-04-14 | Fixing device and fixing system of photovoltaic connector and photovoltaic power generation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219893263U (en) |
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2023
- 2023-04-14 CN CN202320935655.2U patent/CN219893263U/en active Active
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