CN210609059U - Photovoltaic joint protection line concentration device - Google Patents
Photovoltaic joint protection line concentration device Download PDFInfo
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- CN210609059U CN210609059U CN201921970090.1U CN201921970090U CN210609059U CN 210609059 U CN210609059 U CN 210609059U CN 201921970090 U CN201921970090 U CN 201921970090U CN 210609059 U CN210609059 U CN 210609059U
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- photovoltaic
- joint
- line concentration
- cable
- clamping
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- 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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Abstract
The utility model discloses a photovoltaic joint protection line concentration device, which comprises two line concentration insulating discs and a joint clamping groove for clamping a photovoltaic joint, wherein each line concentration insulating disc is provided with a guide groove, two ends of the joint clamping groove are respectively positioned at the bottoms of the guide grooves of the two line concentration insulating discs, and the direction of the notch of the joint clamping groove is consistent with that of the guide groove; and a plurality of cable clamping grooves used for clamping the photovoltaic cables are formed in each line concentration insulating disc. The utility model discloses a photovoltaic connects protection line concentration device has simple structure, easy and simple to handle, safe and reliable, to photovoltaic joint and cable carry out advantages such as reliable effective protection.
Description
Technical Field
The utility model relates to a photovoltaic technology field refers in particular to a photovoltaic connects protection line concentration device.
Background
Solar energy is used as a renewable energy source, the development is rapid in recent years, and due to the intermittence of solar power generation, the large-scale centralized photovoltaic power generation gradually shows the defects of large occupied area, high scheduling difficulty, low transmission efficiency and the like. Distributed photovoltaic power generation follows the principle of 'local power generation, local grid connection and local use', embodies the advantages of small impact on a power grid, high utilization rate and the like, and can play an irreplaceable role along with the development of smart power grids, smart micro-grids and active power distribution networks.
Distributed roof photovoltaic power stations are generally installed on concrete plane roofs, color steel tile roofs and glazed tile pitched roofs, and the color steel tile roofs are more. After the direct current electric energy generated by the photovoltaic module installed on the roof is converted into alternating current electric energy by the photovoltaic inverter, the alternating current electric energy is directly or boosted to be finally connected to a power grid. The photovoltaic module arranged on the roof of the color steel tile or the glazed tile adopts a clamp mounting mode to mount the module due to the bearing capacity of the roof, the house structure and the like, and the clamp mounting mode has the characteristics of light weight, low cost, high reliability, convenience in mounting and the like; in order to adapt to the bearing capacity of the roof, save the cost and maximize the installation capacity, the roof can be selectively provided with small-sized guide rails or not provided with the guide rails. The components are connected by adopting MC4 connectors, and the MC4 connectors and the positive and negative electrode lead-out wires of the components are not allowed to directly contact the roof in order to prevent aging of the MC4 connectors and the positive and negative electrode lead-out wires of the components, fire caused by short circuit and the like. Under the condition that a guide rail is usually installed, the MC4 joint and the positive and negative electrode outgoing lines of the assembly are fixed on the guide rail in a surrounding mode through a binding belt, but the binding belt has a certain service life, and is easy to age and fall off under long-term strong sunlight irradiation; under the condition that the guide rail is not installed, the MC4 connector and the anode and cathode outgoing lines of the assembly directly or indirectly contact the roof, so that great potential safety hazards are caused.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in: to the technical problem that prior art exists, the utility model provides a simple structure, easy and simple to handle, safe and reliable, carry out the photovoltaic joint protection line concentration device that protects to joint and cable.
In order to solve the technical problem, the utility model provides a technical scheme does:
a photovoltaic joint protection line concentration device comprises two line concentration insulating discs and a joint clamping groove for clamping a photovoltaic joint, wherein each line concentration insulating disc is provided with a guide groove, two ends of the joint clamping groove are respectively positioned at the bottoms of the guide grooves of the two line concentration insulating discs, and the direction of a notch of the joint clamping groove is consistent with that of the guide groove; and a plurality of cable clamping grooves used for clamping the photovoltaic cables are formed in each line concentration insulating disc.
As a further improvement of the above technical solution:
the line concentration insulating disc is a circular disc.
The line concentration insulating disc is made of polyphenyl ether.
The diameter of the connector clamping groove is matched with the outer diameter of the photovoltaic connector, and the width of the guide groove is smaller than the outer diameter of the photovoltaic connector.
The number of the cable clamping grooves is two, and the two cable clamping grooves are located on the same diameter of the line concentration insulating disc.
The width of the cable clamping groove is smaller than the outer diameter of the photovoltaic cable.
The inside of cable draw-in groove be provided with more than one with the external diameter assorted holding tank of photovoltaic cable.
The number of the accommodating grooves is 2-8.
Compared with the prior art, the utility model has the advantages of:
the utility model discloses a photovoltaic joint protection line concentration device, is provided with the joint draw-in groove between two line concentration insulating discs, is used for blocking the photovoltaic joint (such as photovoltaic MC4 joint), through the support isolation effect of line concentration insulating discs, makes the photovoltaic joint can not contact with the roof; meanwhile, the arrangement of the guide groove facilitates the photovoltaic connector to be clamped into the connector clamping groove through the guide groove, and the operation is convenient; the cable clamping grooves are formed in the line concentration insulating disc and used for clamping cables of positive and negative lead-out lines of the photovoltaic module or other cables, and the cables are enabled not to be in contact with a roof through the supporting and isolating effects of the line concentration insulating disc; the photovoltaic joint protection line concentration device is simple in structure, simple and convenient to operate and capable of protecting the joint and the cable simultaneously.
The utility model discloses a photovoltaic joint protection line concentration device, through specific design structure, three-dimensional framework, standardized the subassembly connecting wire, the fixed state that stews of MC4 joint, fine solution distributed photovoltaic power plant common because of MC4 connects the short circuit that intake and photovoltaic cable is ageing to lead to, lead to various problems such as dc-to-ac converter ground protection trouble, cable scaling loss, agree with the distributed photovoltaic power plant who contains string formula photovoltaic inverter very much and use the scene. In addition, the arrangement mode is flexible, the service life of the device is longer than the design life of a photovoltaic power station, the manufacturing cost is low, and the device has high application value.
Drawings
Fig. 1 is a perspective view of the embodiment of the present invention.
Fig. 2 is a side view structural diagram of the present invention in an embodiment.
Fig. 3 is a front view structural diagram of the present invention in an embodiment.
The reference numbers in the figures denote: 1. a line concentration insulating disc; 2. a connector slot; 3. a guide groove; 4. a cable clamp slot; 5. and (6) accommodating the tank.
Detailed Description
The invention is further described with reference to the drawings and the specific embodiments.
As shown in fig. 1 to 3, the photovoltaic joint protection line concentration device of the present embodiment includes two line concentration insulating discs 1 arranged in parallel with each other and a joint clamping groove 2 for clamping a photovoltaic joint, the section of the joint clamping groove 2 is semicircular or slightly larger than semicircular, each line concentration insulating disc 1 is provided with a guide groove 3, two ends of the joint clamping groove 2 are respectively located at the bottom of the guide grooves 3 of the two line concentration insulating discs 1, and the direction of the groove opening of the joint clamping groove 2 is the same as that of the guide groove 3; each line concentration insulating disc 1 is provided with a plurality of cable clamping grooves 4 used for clamping photovoltaic cables.
The utility model discloses a photovoltaic joint protection line concentration device, is provided with the joint draw-in groove 2 between two line concentration insulating discs 1, is used for blocking the photovoltaic joint (such as photovoltaic MC4 joint), through the support isolation effect of line concentration insulating discs 1, makes the photovoltaic joint can not contact with the roof; meanwhile, the guide groove 3 is arranged, so that the photovoltaic connector can be conveniently clamped into the connector clamping groove 2 through the guide groove 3, and the operation is convenient; the cable clamping grooves 4 are arranged on the line concentration insulating disc 1 and used for clamping cables of positive and negative lead-out lines of the photovoltaic module or other cables, and the cables are prevented from contacting a roof through the supporting and isolating action of the line concentration insulating disc 1; the photovoltaic joint protection line concentration device is simple in structure, simple and convenient to operate and capable of protecting the joint and the cable simultaneously.
In this embodiment, the diameter that connects draw-in groove 2 and the external diameter phase-match that the photovoltaic connects, the length that connects draw-in groove 2 is unanimous with the length that the photovoltaic connects, and the width of guide way 3 is less than the external diameter that the photovoltaic connects. If when carrying out the protection of photovoltaic MC4 photovoltaic joint, the size that MC4 connects is 18.8mm, the internal diameter of joint draw-in groove 2 then sets up to 18.8mm equally, and the width of guide way 3 can set up to 17mm, when installing, go into the entry from guide way 3 with MC4 joint card income, push MC4 joint to joint draw-in groove 2 along guide way 3 again and fix, wherein the width of guide way 3 is less than the external diameter that photovoltaic connects, can play certain limiting displacement to MC4 joint, guarantee its steadiness. Of course, in other embodiments, the sizes of the connector slot 2 and the guide slot 3 are adapted for other types of photovoltaic connectors. Of course, the line concentration insulating disc 1 and the connector clamping groove 2 may be provided separately or integrally.
This implementationIn the example, the number of the cable slots 4 is two, and the two cable slots are located on the same diameter of the line concentration insulating disc 1; the width of the cable clamping groove 4 is smaller than the outer diameter of the photovoltaic cable; more than one accommodating groove 5 matched with the outer diameter of the photovoltaic cable is arranged in the cable clamping groove 4. E.g. for commonly used 4mm2When the photovoltaic cable is designed, 4mm2The external diameter of photovoltaic cable is 5.5-6mm, and the width of cable clamping groove 4 sets up to 4.5mm to set up four holding tanks 5 in cable clamping groove 4, the diameter of holding tank 5 is 6mm, guarantees the steadiness of photovoltaic cable in cable clamping groove 4, also can not have any damage to photovoltaic cable.
In this embodiment, the line concentration insulating disc 1 is a disc, is made of polyphenylene oxide, has the advantages of high heat resistance, flame retardancy, high strength, excellent electrical property and the like, and has the advantages of wear resistance, no toxicity, pollution resistance and the like. Of course, the shape and material are not limited, and in other embodiments, a polygonal shape or other insulating plastic material may be used.
The using method comprises the following steps: after the MC4 connectors of each photovoltaic module are connected, the MC4 connectors are clamped into the guide grooves 3 in proportion by using proper force and plastic tension, and finally the MC4 connectors are pushed into the connector clamping grooves 2 to be fixed. After the MC4 joint is fixed, the photovoltaic cables (including the cables of the lead-out wires of the positive and negative poles of the photovoltaic module) on the left side and the right side of the MC4 joint are respectively surrounded along the cable clamping grooves 4 until the cables do not contact the roof any more, the cables are placed on the roof after installation, and the cables are kept standing by the aid of self gravity.
The utility model discloses a photovoltaic joint protection line concentration device, through specific design structure, three-dimensional framework, standardized the subassembly connecting wire, the fixed state that stews of MC4 joint, fine solution distributed photovoltaic power plant common because of MC4 connects the short circuit that intake and photovoltaic cable is ageing to lead to, lead to various problems such as dc-to-ac converter ground protection trouble, cable scaling loss, agree with the distributed photovoltaic power plant who contains string formula photovoltaic inverter very much and use the scene. In addition, the arrangement mode is flexible, the service life of the device is longer than the design life of a photovoltaic power station, the manufacturing cost is low, and the device has high application value.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The technical solution of the present invention can be used by anyone skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, without departing from the scope of the technical solution of the present invention, using the technical content disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.
Claims (8)
1. The photovoltaic joint protection line concentration device is characterized by comprising two line concentration insulating discs (1) and joint clamping grooves (2) for clamping photovoltaic joints, wherein each line concentration insulating disc (1) is provided with a guide groove (3), two ends of each joint clamping groove (2) are respectively positioned at the bottoms of the guide grooves (3) of the two line concentration insulating discs (1), and the direction of a notch of each joint clamping groove (2) is consistent with that of each guide groove (3); each line concentration insulating disc (1) is provided with a plurality of cable clamping grooves (4) used for clamping photovoltaic cables.
2. The photovoltaic joint protection concentrator according to claim 1, characterized in that the concentrator insulating disk (1) is a circular disk.
3. The photovoltaic joint protection concentrator as claimed in claim 2, wherein the concentrator insulating disk (1) is made of polyphenylene oxide.
4. The photovoltaic joint protection hub device according to claim 1, 2 or 3, wherein the diameter of the joint clamping groove (2) matches with the outer diameter of the photovoltaic joint, and the width of the guide groove (3) is smaller than the outer diameter of the photovoltaic joint.
5. The photovoltaic joint protection concentrator device according to claim 1, 2 or 3, wherein the number of the cable slots (4) is two, and the two cable slots are located on the same diameter of the concentrator insulating disk (1).
6. The photovoltaic joint protection hub device according to claim 1, 2 or 3, wherein the width of the cable slot (4) is smaller than the outer diameter of the photovoltaic cable.
7. The photovoltaic joint protection concentrator of claim 6, wherein the inside of the cable slot (4) is provided with more than one accommodating groove (5) matched with the outer diameter of the photovoltaic cable.
8. The photovoltaic joint protection concentrator according to claim 7, characterized in that the number of said housing grooves (5) is 2-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921970090.1U CN210609059U (en) | 2019-11-14 | 2019-11-14 | Photovoltaic joint protection line concentration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921970090.1U CN210609059U (en) | 2019-11-14 | 2019-11-14 | Photovoltaic joint protection line concentration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210609059U true CN210609059U (en) | 2020-05-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921970090.1U Active CN210609059U (en) | 2019-11-14 | 2019-11-14 | Photovoltaic joint protection line concentration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210609059U (en) |
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2019
- 2019-11-14 CN CN201921970090.1U patent/CN210609059U/en active Active
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