Photovoltaic system and transition cable

Abstract

The utility model discloses a photovoltaic system and a transition cable, and belongs to the field of photovoltaic technology. The photovoltaic system comprises: a photovoltaic module; one end of the inverter is electrically connected with the photovoltaic module, and the other end of the inverter is provided with a power generation end connecting plug; the two ends of the transition cable are connected with a first connecting plug and a second connecting plug, the first connecting plug is connected with the power generation end connecting plug in an inserted mode, and the transition cable is used for penetrating indoor and outdoor; one end of the power supply connector is provided with a power supply end connecting plug, and the second connecting plug is connected with the power supply end connecting plug in an inserted mode. According to the photovoltaic system and the transition cable, the transition cable with the connecting plugs at the two ends penetrates indoors and outdoors, so that the transition cable can be quickly disassembled, the photovoltaic system is convenient to maintain, the transition cable penetrates indoors and outdoors through the specific structural design, and it is ensured that the photovoltaic system is convenient to install.

Description

Technical Field

[0001] The present application belongs to the field of photovoltaic technology, and in particular relates to a photovoltaic system and a transition cable. Background Art

[0002] Installing photovoltaic modules on the outdoor balcony of a home and connecting them to the indoor home grid is a common home photovoltaic system. In a home photovoltaic system, outdoor photovoltaic modules and indoor home grid are usually connected by cables. When outdoor cables enter the room, they usually need to pass through doors and windows. Opening and closing doors and windows will squeeze or wear the cables, causing safety problems. Utility Model Content

[0003] The present application aims to solve at least one of the technical problems existing in the related art. To this end, the present application proposes a photovoltaic system and a transition cable, wherein the transition cable with plug connectors at both ends runs through indoors and outdoors, so that the transition cable can be quickly disassembled, and the photovoltaic system is easy to maintain. The transition cable runs through indoors and outdoors through its specific structural design, ensuring that the photovoltaic system is easy to install.

[0004] In a first aspect, the present application provides a photovoltaic system, comprising:

[0005] Photovoltaic panels;

[0006] An inverter, one end of which is electrically connected to the photovoltaic module, and the other end of which is provided with a power generation end plug connector;

[0007] A transition cable, wherein both ends of the transition cable are connected with a first plug connector and a second plug connector, the first plug connector is plugged with the power generation end plug connector, and the transition cable is used to pass through indoors and outdoors;

[0008] A power supply connector, one end of which is provided with a power supply end plug connector, and the second plug connector is plugged with the power supply end plug connector.

[0009] According to the photovoltaic system of the present application, a transition cable with plug connectors at both ends runs through indoors and outdoors, so that the transition cable can be quickly disassembled, and the photovoltaic system is easy to maintain. The transition cable runs through indoors and outdoors through its specific structural design, ensuring easy installation of the photovoltaic system.

[0010] According to one embodiment of the present application, the transition cable includes a wire core and a plurality of layers of wire sheaths covering the wire core, and at least two layers of the wire sheaths have different colors.

[0011] According to one embodiment of the present application, the transition cable includes a wire core, a first wire sheath wrapped outside the wire core, a second wire sheath wrapped outside the first wire sheath, and a third wire sheath wrapped outside the second wire sheath, and the colors of the first wire sheath, the second wire sheath and the third wire sheath are different.

[0012] According to an embodiment of the present application, the cross-section of the transition cable is flat.

[0013] According to one embodiment of the present application, the core of the transition cable includes a plurality of conductors, and the plurality of conductors are woven into a mesh or laid flat.

[0014] According to an embodiment of the present application, the diameter of the wire is d, satisfying: d≤0.15 mm.

[0015] According to one embodiment of the present application, the transition cable is used to extend along the frame surface of the door or window.

[0016] In a second aspect, the present application provides a transition cable for use in a photovoltaic system.

[0017] According to the transition cable of the present application, the design of the plug connectors at both ends of the transition cable makes it easy to install and disassemble the transition cable and has electrical isolation and protection measures. The multi-layer wire sheaths wrapped around the wire core of the transition cable are designed in different colors so that the transition cable can be identified by the naked eye to form a warning after being damaged. At the same time, the flat design of the transition cable allows the transition cable to pass through the gaps in doors and windows and run through indoors and outdoors.

[0018] According to one embodiment of the present application, the transition cable is used to run through indoors and outdoors, and both ends of the transition cable are connected to a first plug connector and a second plug connector. The first plug connector is used to plug into an outdoor power supply end plug connector, and the second plug connector is used to plug into an indoor power supply end plug connector.

[0019] According to one embodiment of the present application, the transition cable includes a wire core and a plurality of layers of wire sheaths covering the wire core, and at least two layers of the wire sheaths have different colors.

[0020] According to an embodiment of the present application, the cross-section of the transition cable is flat.

[0021] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 is a schematic diagram of the structure of a photovoltaic system provided in an embodiment of the present application;

[0024] Figure 2 It is a partial structural schematic diagram of a transition cable provided in an embodiment of the present application;

[0025] Figure 3 It is a schematic diagram of the structure of the transition cable provided in the embodiment of the present application when passing through doors and windows.

[0026] Reference numerals:

[0027] Photovoltaic system 1;

[0028] Photovoltaic module 10;

[0029] Inverter 20, power generation end plug connector 21;

[0030] Transition cable 30, first plug connector 31, second plug connector 32, wire core 33, first wire sheath 34, second wire sheath 35, third wire sheath 36;

[0031] Power supply connector 40;

[0032] Frame of doors and windows 2. DETAILED DESCRIPTION

[0033] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0034] Reference below Figure 1-Figure 3 A photovoltaic system and a transition cable according to embodiments of the present application are described.

[0035] like Figure 1 As shown, the photovoltaic system 1 of the embodiment of the present application includes: a photovoltaic component 10, an inverter 20, a transition cable 30 and a power supply connector 40.

[0036] The photovoltaic assembly 10 is located outdoors and is responsible for converting solar energy into electrical energy. It can be understood that the photovoltaic assembly 10 in the photovoltaic system 1 is used to supply power to a household power grid located indoors.

[0037] like Figure 1 As shown, one end of the inverter 20 is electrically connected to the photovoltaic assembly 10 , and the other end of the inverter 20 is provided with a power generation end plug connector 21 .

[0038] In the photovoltaic system 1, the inverter 20 is responsible for converting the direct current generated by the photovoltaic module 10 into alternating current, and the alternating current converted by the inverter 20 is connected to the home power grid through an appropriate connection device. That is, one end of the inverter 20 is electrically connected to the photovoltaic module 10, ensuring that the electric energy generated by the photovoltaic module 10 can be smoothly transmitted to the inverter 20 for conversion and finally connected to the home power grid.

[0039] The other end of the inverter 20 is provided with a power generation end plug connector 21, so that the inverter 20 can be plugged into the plug connector of the transition cable 30 or other equipment.

[0040] like Figure 1 As shown, the two ends of the transition cable 30 are connected with a first plug connector 31 and a second plug connector 32, and the first plug connector 31 is plugged with the power generation end plug connector 21, as shown in FIG. Figure 3 As shown, the transition cable 30 is used to penetrate indoors and outdoors.

[0041] The design of using plug connectors at both ends of the transition cable 30 simplifies the installation process when the transition cable 30 is connected to the inverter 20 or other devices. When the transition cable 30 needs to be replaced, the transition cable 30 can be removed by simply disconnecting the first plug connector 31 and the second plug connector 32, and the system has high maintainability.

[0042] The first plug connector 31 is plugged into the power generation end plug connector 21 of the inverter 20 , that is, the electric energy generated by the photovoltaic assembly 10 is converted into alternating current by the inverter 20 and can be further transmitted through the transition cable 30 and finally integrated into the household power grid.

[0043] The transition cable 30 is used to run through indoors and outdoors, that is, the transition cable 30 solves the problem that the electric energy generated by the outdoor photovoltaic assembly 10 needs to be safely and effectively transmitted indoors and then incorporated into the household power grid.

[0044] like Figure 3 As shown, the transition cable 30 can be a flat or other shaped structure. For example, the flat transition cable 30 can allow the photovoltaic system 1 to introduce the transition cable 30 into the room through the gaps in doors and windows, so that the transition cable 30 runs through the indoors and outdoors, and no additional holes need to be reserved on the wall for passing the transition cable 30.

[0045] like Figure 1 As shown, one end of the power supply connector 40 has a power supply end plug connector, and the second plug connector 32 is plugged into the power supply end plug connector.

[0046] The power supply connector 40 is the grid connection point for the photovoltaic system 1 to be connected to the home grid. The power supply connector 40 may contain electrical isolation and protection measures to prevent the power of the photovoltaic system 1 from causing impact or damage to the home grid. At the same time, the power supply connector 40 may have the ability to protect the photovoltaic system 1 from electrical faults that may exist in the home grid.

[0047] The plug-in design between the power supply end connector on the power supply connector 40 and the second connector 32 of the transition cable 30 simplifies the installation process when the transition cable 30 is connected to the power supply connector 40, that is, the electrical energy converted into AC power in the transition cable 30 can be selectively incorporated into the home power grid.

[0048] In the related art, in order to solve the problem that the outdoor photovoltaic modules need to supply power to the indoor home grid, some solutions have been designed to connect the cables connected to the inverter of the photovoltaic modules through the wall and then connect to the grid access point of the indoor home grid. The inventor found through research that in the related art, on the one hand, a specific cable passing position is usually set on the wall, such as drilling a round hole, which has high construction costs. On the other hand, when the cable is damaged, it is complicated to disassemble and install, and it is not easy to maintain.

[0049] In actual implementation, in the photovoltaic system 1 provided in the embodiment of the present application, the electric energy generated by the outdoor photovoltaic assembly 10 is transmitted to the indoor home power grid through the inverter 20, the transition cable 30 and the power supply connector 40. The inverter 20 is responsible for converting the direct current generated by the photovoltaic assembly 10 into alternating current, and is connected to the first plug connector 31 of the transition cable 30 through the power generation end plug connector 21. After the first plug connector 31 at one end of the transition cable 30 is connected to the power generation end plug connector 21 of the inverter 20, the transition cable 30 can pass through the indoor and outdoor through the gaps of doors and windows according to its flat shape or other shape structures, and the second plug connector 32 at the other end of the transition cable 30 is connected to the power supply end plug connector of the power supply connector 40, so that the electric energy is transmitted to the home power grid.

[0050] According to the photovoltaic system 1 provided in the embodiment of the present application, the transition cable 30 with plug connectors at both ends runs through the indoor and outdoor, so that the transition cable 30 can be quickly disassembled, and the photovoltaic system 1 is easy to maintain. The transition cable 30 runs through the indoor and outdoor due to its specific structural design, ensuring that the photovoltaic system 1 is easy to install.

[0051] In some embodiments, Figure 2 As shown, the transition cable 30 includes a wire core 33 and a plurality of wire sheaths covering the wire core 33 , and at least two layers of the wire sheaths have different colors.

[0052] The transition cable 30 can be provided with at least two or more layers of sheaths of different colors. When the outer sheath is damaged and the inner sheath is exposed, the color change can be immediately observed by the naked eye, that is, the transition cable 30 can be quickly identified after being damaged, thereby ensuring the safety of the photovoltaic system 1.

[0053] In some embodiments, Figure 2 As shown, the transition cable 30 includes a core 33, a first sheath 34 wrapped around the core 33, a second sheath 35 wrapped around the first sheath 34, and a third sheath 36 wrapped around the second sheath 35. The colors of the first sheath 34, the second sheath 35 and the third sheath 36 are different.

[0054] The first sheath 34 is in contact with the wire core 33 and mainly plays a basic insulating role. The second sheath 35 is coated outside the first sheath 34 to enhance the insulation performance, wherein the second sheath 35 is of a different color from the first sheath 34. The third sheath 36 is located at the outermost layer and can be made of a material with good extrusion resistance and weather resistance, that is, the third sheath 36 can withstand the extrusion when the doors and windows are opened and closed and resist the influence of adverse factors such as ultraviolet rays, high temperature, humidity, etc. The third sheath 36 is of a different color from the first sheath 34 and the second sheath 35.

[0055] Through this color setting, when the third sheath 36 of the cable is damaged, the second sheath 35 is exposed, that is, the sheaths of different colors can be observed by the naked eye, forming a warning to attract the attention of relevant personnel. When the second sheath 35 is damaged, the first sheath 34 can be observed by the naked eye. The color of the first sheath 34 can be red or other eye-catching colors, warning relevant personnel that the transition cable 30 must be replaced.

[0056] That is, through the different colors of cable sheaths, relevant personnel can quickly observe the location and extent of cable damage and take corresponding maintenance measures.

[0057] In some embodiments, Figure 1 and Figure 2 As shown, the cross section of the transition cable 30 is flat.

[0058] The cross section of the transition cable 30 is flat, which can be achieved by the arrangement of the conductors in the battery core and the shape of the outer sheath. The conductor can be a thin wire, and multiple conductors can be woven into a mesh or laid flat to reduce the overall thickness of the transition cable 30, while the battery core can maintain the necessary width to accommodate a sufficient number of conductors. The shape of the multi-layer sheath wrapped around the outside of the core 33 is designed according to the shape of the core 33 to ensure that the overall shape of the transition cable 30 is flat.

[0059] The cross section of the transition cable 30 is flat, and can easily pass through low spaces such as door and window gaps to penetrate indoors and outdoors, without the need to drill additional holes in the wall, thereby reducing construction difficulty and cost. At the same time, the flat cable can be laid along a flat surface such as a wall, which can keep the exterior wall clean.

[0060] In some embodiments, Figure 2 As shown, the core 33 of the transition cable 30 includes a plurality of conductors, and the plurality of conductors are woven into a mesh.

[0061] In the wire core 33, the wires may be overlapped or laid flat in a specific manner to form a mesh or strip structure. The specific weaving method may be plain weaving, twill weaving, or laying flat. By weaving multiple wires into a mesh or laying flat, a flat design of the wire core 33 may be achieved.

[0062] At the same time, because the wires are woven into a mesh structure, this structure can maintain good stability when subjected to external forces and can adapt to a certain degree of bending and extrusion.

[0063] In some embodiments, Figure 2 As shown, the diameter of the wire is d, satisfying: d≤0.15mm.

[0064] The thinner the diameter of the wire is, the easier it is to weave it into a mesh structure. When the thin wire is woven, the gap is small, the wires in the wire core 33 are tight, and the unevenness that may occur during the weaving process is also reduced.

[0065] At the same time, thin wires are usually highly flexible, that is, the wire core 33 of the transition cable 30 can be bent to adapt to various angles more easily, and is not likely to cause the wire to break or be damaged.

[0066] In some embodiments, Figure 3 As shown, the transition cable 30 is used to extend along the surface of the frame 2 of the door or window.

[0067] The transition cable 30 extends along the surface of the frame 2 of the door and window, which can reduce the safety risks caused by accidents such as people colliding with the transition cable 30. At the same time, the transition cable 30 extends along the surface of the frame 2, which makes the arrangement of the transition cable 30 more orderly, and relevant personnel can more easily find and approach the transition cable 30, which is convenient for subsequent replacement or maintenance of the transition cable 30.

[0068] It is understandable that the transition cable 30 can pass through the gaps at the door and window frames and penetrate indoors and outdoors according to its flat shape.

[0069] The embodiment of the present application also provides a transition cable 30 .

[0070] In some embodiments, Figure 1 As shown, a transition cable 30 is applied to a photovoltaic system 1. The transition cable 30 is used to run through indoors and outdoors. Both ends of the transition cable 30 are connected with a first plug connector 31 and a second plug connector 32. The first plug connector 31 is used to plug with an outdoor power supply end plug connector, and the second plug connector 32 is used to plug with an indoor power supply end plug connector.

[0071] It can be understood that the transition cable 30 is used to transmit the electrical energy of the photovoltaic assembly 10 to the household power grid.

[0072] The transition cable 30 used for the photovoltaic system 1 adopts the design of the first plug connector 31 and the second plug connector 32, so that the transition cable 30 can be quickly connected to the inverter 20 of the outdoor photovoltaic component 10 of the photovoltaic system 1 and the indoor power supply connector 40. No additional installation tools are used, and the connection can be achieved by inserting the corresponding plug connectors. The transition cable 30 is easy to install and remove.

[0073] At the same time, the first plug connector 31 and the second plug connector 32 of the transition cable 30 can be designed to include electrical isolation and protection measures. For example, the plug connector can provide overcurrent, overvoltage and other protection functions. When overcurrent or overvoltage is identified, the plug connector can automatically disconnect to ensure the safety of the photovoltaic system 1.

[0074] In some embodiments, Figure 2 As shown, the transition cable 30 includes a wire core 33 and a plurality of wire sheaths covering the wire core 33 , and at least two layers of the wire sheaths have different colors.

[0075] It is understandable that the transition cable 30 has the function of identifying damage by different colors. That is, after the outer layer of the cable sheath is damaged, the color of the inner layer of the cable sheath can be observed by naked eyes, which can serve as a warning to relevant personnel to disassemble and replace the transition cable 30.

[0076] In some embodiments, Figure 1 and Figure 2 As shown, the cross section of the transition cable 30 is flat.

[0077] It is understandable that the transition cable 30 is flat in shape and can pass through the gaps of doors and windows or other low spaces when passing through indoors and outdoors, and there is no need to set additional holes on the wall for the transition cable 30 to pass through.

[0078] According to the transition cable 30 of the embodiment of the present application, the design of the plug connectors at both ends of the transition cable 30 makes it easy to install and disassemble the transition cable 30 and has electrical isolation and protection measures. The multi-layer wire sheaths wrapped around the wire core 33 of the transition cable 30 are designed in different colors so that the transition cable 30 can be identified by the naked eye after being damaged to form a warning. At the same time, the flat design of the transition cable 30 allows the transition cable 30 to pass through the gaps in doors and windows and run through indoors and outdoors.

[0079] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0080] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0081] In the description of this application, "first feature" or "second feature" may include one or more of the features.

[0082] In the description of the present application, “plurality” means two or more.

[0083] In the description of the present application, a first feature being “on” or “under” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.

[0084] In the description of the present application, “above”, “over” and “above” a first feature to a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0085] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0086] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A photovoltaic system, characterized in that: include: Photovoltaic panels; An inverter, one end of which is electrically connected to the photovoltaic module, and the other end of which is provided with a power generation end plug connector; A transition cable, wherein both ends of the transition cable are connected with a first plug connector and a second plug connector, the first plug connector is plugged with the power generation end plug connector, and the transition cable is used to pass through indoors and outdoors; A power supply connector, one end of which is provided with a power supply end plug connector, and the second plug connector is plugged with the power supply end plug connector.

2. The photovoltaic system according to claim 1, characterized in that: The transition cable includes a wire core and a plurality of wire sheaths covering the wire core, and at least two layers of the wire sheaths have different colors.

3. The photovoltaic system according to claim 1, characterized in that: The transition cable includes a wire core, a first wire sheath wrapped outside the wire core, a second wire sheath wrapped outside the first wire sheath, and a third wire sheath wrapped outside the second wire sheath, and the first wire sheath, the second wire sheath, and the third wire sheath have different colors.

4. The photovoltaic system according to claim 1, characterized in that: The cross section of the transition cable is flat.

5. The photovoltaic system according to claim 4, characterized in that: The core of the transition cable includes a plurality of conductive wires, and the plurality of conductive wires are woven into a mesh or laid flat.

6. The photovoltaic system according to claim 5, characterized in that: The diameter of the wire is d, satisfying: d≤0.15 mm.

7. The photovoltaic system according to any one of claims 1 to 6, characterized in that: The transition cable is used to extend along the frame surface of the door and window.

8. A transition cable, applied to a photovoltaic system, characterized in that: The transition cable is used to run through indoors and outdoors. Both ends of the transition cable are connected with a first plug connector and a second plug connector. The first plug connector is used to plug with an outdoor power supply end plug connector, and the second plug connector is used to plug with an indoor power supply end plug connector.

9. The transition cable according to claim 8, characterized in that: The transition cable includes a wire core and a plurality of wire sheaths covering the wire core, and at least two layers of the wire sheaths have different colors.

10. The transition cable according to claim 8, characterized in that: The cross section of the transition cable is flat.

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