Photovoltaic cable capable of preventing ultraviolet radiation

Abstract

The utility model discloses an ultraviolet radiation-proof photovoltaic cable, which comprises a plurality of wire core assemblies, the surfaces of the plurality of wire core assemblies are provided with a wrapping layer, a filling layer is arranged in a gap between the wrapping layer and the plurality of wire core assemblies, the surface of the wrapping layer is provided with an armor layer, the surface of the armor layer is provided with a second insulating layer, and the surface of the second insulating layer is provided with a first insulating layer. A plurality of annular grooves are formed in the surface of the second insulating layer at equal intervals, and mounting structures are arranged in a manner of being matched with the annular grooves. According to the utility model, the plurality of wire core assemblies, the filling layer, the wrapping layer, the armor layer and the second insulating layer are arranged, the plurality of wire core assemblies are all composed of the conductive wires and the first insulating layers, the conductive wires adopt the galvanized copper wires, the diameter of the conductive wires is reduced, the number of the conductive wires is increased, and the conductive wires are arranged in parallel; and annular grooves are formed in the surface of the second insulating layer at equal intervals, so that the bending resistance of the photovoltaic cable is higher, and the conductivity and the flexibility of the cable are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic cables, in particular to a photovoltaic cable capable of preventing ultraviolet radiation. Background Art

[0002] The new energy photovoltaic power generation industry is developing rapidly at home and abroad. The normal operation of the supporting systems of photovoltaic products is mainly maintained by the conversion of electrical energy collected by photovoltaics, which is converted into the power generation system based on solar power generation. Therefore, the connecting wires and cables between its components are indispensable products for transmitting total power.

[0003] The patent with publication number CN204178756U proposes a dual-core UV radiation-proof photovoltaic cable, whose inner and outer insulation layers are made of low-smoke, halogen-free, flame-retardant, radiation-crosslinked polyolefin insulation layers made of highly flexible UV radiation-proof shielding material. The produced cable has excellent characteristics such as UV protection, low-smoke, halogen-free, soft, weather-resistant, acid- and alkali-resistant, able to withstand large tension, excellent bending performance, easy to use, and long life. However, the cable still has the following disadvantages:

[0004] This cable is the same as the current double-core cable. The internal conductive wire is made of copper. However, in order to ensure the transmission efficiency, the diameter of the conductive wire is relatively thick, which leads to poor flexibility of the cable. When radiating the photovoltaic cable, it is not easy to bend the cable at the bending position. If the conductive wire is made of aluminum, although it is more flexible, the conductivity is relatively low. Secondly, the efficiency of the cable is relatively low during installation and laying, and the positioning and installation of the cable cannot be completed quickly. Therefore, further improvement is needed. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and provides a photovoltaic cable that is resistant to ultraviolet radiation.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a photovoltaic cable with UV radiation protection, comprising a plurality of core components, a plurality of core components are provided with a sheathing layer on the surface, a filling layer is provided in the gap between the sheathing layer and the plurality of core components, an armoring layer is provided on the surface of the sheathing layer, a second insulating layer is provided on the surface of the armoring layer, a plurality of annular grooves are provided on the surface of the second insulating layer at equal distances, a mounting structure is provided to match the annular groove, the mounting structure comprises a first semicircular clamping ring and a second semicircular clamping ring which are clamped in the annular groove, a first side plate is fixed at both ends of the first semicircular clamping ring, a second side plate is fixed at both ends of the second semicircular clamping ring, a connecting component is provided on the upper surface of the first side plate and the lower surface of the second side plate, and a mounting component is fixedly connected to the top of the first semicircular clamping ring.

[0007] Furthermore, the filling layer is made of filling rope, the wrapping layer is made of non-woven fabric, and the armor layer is made of steel belt.

[0008] Furthermore, some of the wire core components include conductive wires, and the conductive wires are made of galvanized copper. A first insulating layer is provided on the surface of the conductive wires, and both the first insulating layer and the second insulating layer are made of low-smoke halogen-free flame-retardant radiation cross-linked polyolefin.

[0009] Furthermore, the diameter of the conductive wires of some of the wire core assemblies is less than 0.3 cm, and some of the wire core assemblies are arranged in parallel.

[0010] Furthermore, the connecting component includes a slot opened on the upper surface of the first side panel and an insert block fixed on the lower surface of the second side panel, the slot is provided with a card hole on the side away from the second insulating layer surface, the insert block is provided with a groove on the side close to the card hole, a spring is fixedly connected to the inner side wall of the groove, and a card rod is fixedly connected to the other end of the spring, and the card rod is inserted into the card hole at one end away from the spring.

[0011] Furthermore, the mounting assembly includes a vertical rod fixed to the top end of the second semicircular clamping ring, and the top end of the vertical rod is fixedly connected to a mounting plate.

[0012] Beneficial effects of the utility model:

[0013] 1. When the utility model is in use, the photovoltaic cable with UV radiation protection is provided with a plurality of core components, a filling layer, a wrapping layer, an armor layer and a second insulating layer. The plurality of core components are composed of a conductive wire and a first insulating layer. The conductive wire is a galvanized copper wire. The cable reduces the diameter of the conductive wire, increases the number of the conductive wires, and arranges the conductive wires in parallel. In combination with the annular grooves equidistantly provided on the surface of the second insulating layer, the photovoltaic cable has a stronger anti-bending ability, which ensures both the conductivity and flexibility of the cable.

[0014] 2. When the utility model is in use, the photovoltaic cable with protection against ultraviolet radiation is provided with a first semicircular clamp ring, a second semicircular clamp ring, a first side plate, a second side plate, a connecting assembly and a mounting assembly to form a mounting structure. The mounting structure can be quickly fixed in the annular groove on the surface of the second insulating layer through the connecting assembly, so that the cable can be quickly installed through the mounting structure during laying, thereby improving the laying efficiency of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 : The overall stereogram of the utility model;

[0017] Figure 2 : An overall cross-sectional view of the utility model;

[0018] Figure 3 :The utility model Figure 2 Enlarged view of point A in the middle.

[0019] The reference numerals are as follows:

[0020] 1. Wire core assembly; 101. Conductive wire; 102. First insulating layer; 2. Filling layer; 3. Wrapping layer; 4. Armor layer; 5. Second insulating layer; 6. Annular groove; 7. First semicircular clamping ring; 8. Second semicircular clamping ring; 9. First side plate; 10. Second side plate; 11. Connecting assembly; 111. Slot; 112. Clamping hole; 113. Insert block; 114. Groove; 115. Spring; 116. Clamping rod; 12. Mounting assembly; 121. Vertical rod; 122. Mounting plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1-Figure 3 As shown, it relates to a photovoltaic cable with UV radiation protection, including a plurality of core components 1, a sheath 3 is provided on the surface of the plurality of core components 1, a filling layer 2 is provided in the gap between the sheath 3 and the plurality of core components 1, an armor layer 4 is provided on the surface of the sheath 3, a second insulating layer 5 is provided on the surface of the armor layer 4, a plurality of annular grooves 6 are provided on the surface of the second insulating layer 5 at equal distances, and a mounting structure is provided to match the annular groove 6, the mounting structure includes a first semicircular clamping ring 7 and a second semicircular clamping ring 8 which are clamped in the annular groove 6, first side plates 9 are fixed at both ends of the first semicircular clamping ring 7, second side plates 10 are fixed at both ends of the second semicircular clamping ring 8, a connecting component 11 is provided on the upper surface of the first side plate 9 and the lower surface of the second side plate 10, and a mounting component 12 is fixedly connected to the top of the first semicircular clamping ring 7.

[0023] like Figure 1 and Figure 2 As shown, the filling layer 2 is made of filling rope, the wrapping layer 3 is made of non-woven fabric, and the armor layer 4 is made of steel belt.

[0024] The filling layer 2 can separate the plurality of wire core components 1 to ensure that there are bending gaps between the wire core components 1. The wrapping layer 3 can wrap the filling layer 2 and the plurality of wire core components 1 together, and the armor layer 4 can protect the wire core components 1.

[0025] The plurality of wire core components 1 include a conductive wire 101 , and the conductive wire 101 is made of galvanized copper. A first insulating layer 102 is disposed on the surface of the conductive wire 101 . Both the first insulating layer 102 and the second insulating layer 5 are made of low-smoke halogen-free flame-retardant radiation cross-linked polyolefin.

[0026] The inner and outer two insulating layers can improve the protection effect of the conductive wire 101, and the low-smoke, halogen-free, flame-retardant, radiation-cross-linked polyolefin used makes the cable have good radiation resistance.

[0027] The diameter of the conductive wires 101 of the plurality of wire core components 1 is less than 0.3 cm, and the plurality of wire core components 1 are arranged in parallel.

[0028] Reducing the diameter of the conductive wire 101 and increasing the number of the conductive wires 101 can make the finished cable easier to bend and improve its flexibility.

[0029] like Figure 1-Figure 3 As shown, the connecting component 11 includes a slot 111 opened on the upper surface of the first side plate 9 and an insert block 113 fixed on the lower surface of the second side plate 10, the slot 111 is provided with a card hole 112 on the side away from the surface of the second insulating layer 5, the insert block 113 is provided with a groove 114 on the side close to the card hole 112, the inner wall of the groove 114 is fixedly connected to a spring 115, the other end of the spring 115 is fixedly connected to a card rod 116, and the end of the card rod 116 away from the spring 115 is inserted into the card hole 112.

[0030] When the first side plate 9 and the second side plate 10 on the same side are fitted together, the plug block 113 is inserted into the slot 111. At this time, under the elastic force of the spring 115, the clamping rod 116 is clamped into the clamping hole 112, so that the plug block 113 is fixed inside the slot 111, realizing the fixed connection between the first side plate 9 and the second side plate 10, and also allowing the first semicircular clamping ring 7 and the second semicircular clamping ring 8 to be fixed inside the annular groove 6.

[0031] The mounting assembly 12 includes a vertical rod 121 fixed to the top of the second semicircular clamping ring 8, and a mounting plate 122 is fixedly connected to the top of the vertical rod 121. The mounting plate 122 is provided with mounting holes, and the mounting structure can be fixed at a specified position through the mounting plate 122.

[0032] Working principle: When installing the cable, take a number of installation structures, and insert the installation structures into the annular groove 6 on the surface of the second insulating layer 5 at intervals, and then fix the installation plate 122 on the cable laying iron tower. During the laying process, since the second insulating layer 5 is provided with a number of annular grooves 6, the cable is easier to bend along the annular grooves 6. During the use of the cable, the second insulating layer 5 on the surface can play a good role in anti-laying.

[0033] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A photovoltaic cable resistant to ultraviolet radiation, characterized in that: The invention comprises a plurality of wire core components (1), wherein a wrapping layer (3) is provided on the surface of the plurality of wire core components (1), a filling layer (2) is provided in the gap between the wrapping layer (3) and the plurality of wire core components (1), an armor layer (4) is provided on the surface of the wrapping layer (3), a second insulating layer (5) is provided on the surface of the armor layer (4), a plurality of annular grooves (6) are provided on the surface of the second insulating layer (5) at equal distances, and a mounting structure is provided to match the annular grooves (6), wherein the mounting structure comprises a first semicircular clamping ring (7) and a second semicircular clamping ring (8) which are clamped in the annular grooves (6), a first side plate (9) is fixed at both ends of the first semicircular clamping ring (7), a second side plate (10) is fixed at both ends of the second semicircular clamping ring (8), a connecting component (11) is provided on the upper surface of the first side plate (9) and the lower surface of the second side plate (10), and a mounting component (12) is fixedly connected to the top of the first semicircular clamping ring (7).

2. The photovoltaic cable with UV radiation protection according to claim 1, characterized in that: The filling layer (2) is made of filling rope, the wrapping layer (3) is made of non-woven fabric, and the armor layer (4) is made of steel belt.

3. The photovoltaic cable with UV radiation protection according to claim 1, characterized in that: The plurality of wire core components (1) comprise a conductive wire (101), wherein the conductive wire (101) is made of galvanized copper, a first insulating layer (102) is provided on the surface of the conductive wire (101), and the first insulating layer (102) and the second insulating layer (5) are both made of low-smoke halogen-free flame-retardant radiation cross-linked polyolefin.

4. The photovoltaic cable with UV radiation protection according to claim 3, characterized in that: The diameter of the conductive wires (101) of the plurality of wire core components (1) is less than 0.3 cm, and the plurality of wire core components (1) are arranged in parallel.

5. The photovoltaic cable with UV radiation protection according to claim 1, characterized in that: The connecting assembly (11) comprises a slot (111) provided on the upper surface of the first side plate (9) and an insert block (113) fixed on the lower surface of the second side plate (10); a clamping hole (112) is provided on the side of the slot (111) away from the surface of the second insulating layer (5); a groove (114) is provided on the side of the insert block (113) close to the clamping hole (112); a spring (115) is fixedly connected to the inner wall of the groove (114); a clamping rod (116) is fixedly connected to the other end of the spring (115); and the clamping rod (116) is clamped into the inside of the clamping hole (112) at one end away from the spring (115).

6. The photovoltaic cable with UV radiation protection according to claim 1, characterized in that: The mounting assembly (12) comprises a vertical rod (121) fixed to the top end of the second semicircular clamping ring (8), and a mounting plate (122) is fixedly connected to the top end of the vertical rod (121).

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