CN213815612U - Solar cable - Google Patents

Abstract

The utility model discloses a solar cable, including the wire with in proper order the cladding shielding layer, supporting layer, insulating layer and restrictive coating outside the wire, the supporting layer includes annular support ring of circle, the inner wall subsides of support ring are applied in the outside of shielding layer, a plurality of breachs have been seted up to the outer wall circumference of support ring, the outer wall cladding of support ring has the silica gel layer, the silica gel layer extends to the breach in and packs in the breach. The utility model discloses a supporting layer supports the protection to the wire, improves the anti side pressure ability of cable through setting up the support ring to through setting up breach and silica gel layer outside the support ring, make the cable have certain flexibility, guarantee that the cable can carry out the acute angle and buckle and lay, and adopt the insulating layer to carry out the temperature with cable inner structure and outside and separate, make the cable can use under high temperature insolate, solar radiation's harsh environment, can not make the inside wire temperature of cable rise.

Description

Solar cable

Technical Field

The utility model relates to a cable structure designs the field, concretely relates to solar cable.

Background

With the shortage of traditional non-renewable energy, solar energy technology has become one of the popular alternative energy sources, and more attention is paid. Solar energy system often can use under adverse circumstances condition, except high temperature and ultraviolet radiation's the condition, still often bear mechanical load, during installation and maintenance, the cable need be laid on roof structure's sharp limit, the cable must bear pressure simultaneously, buckle, tension, cross tensile load and powerful impact, if cable self intensity is not enough, the cable will receive serious damage, even the conductor is broken string and is caused the open circuit, thereby influence whole photovoltaic system's safe handling, or lead to the short circuit, the emergence of conflagration and personnel injury danger scheduling problem.

Therefore, the solar cable needs to adopt a special cable, can be used in a high-temperature exposure and sunlight radiation harsh environment, has high mechanical loading capacity and certain flexibility, can be normally installed and used, and meanwhile, once an accident happens, the solar cable needs to have certain flame retardant property, so that the fire spreading is prevented.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a solar cable, at the special cable in photovoltaic field, can be when using under high temperature insolate, the harsh environment of solar radiation to not only will have higher mechanical loading ability, still will have certain flexibility.

In order to solve the technical problem, the utility model provides a solar cable, include the wire and cladding shielding layer, supporting layer, insulating layer and restrictive coating outside the wire in proper order, the supporting layer includes annular support ring of circle, the inner wall subsides of support ring apply in the outside of shielding layer, a plurality of breachs have been seted up to the outer wall circumference of support ring, the outer wall cladding of support ring has the silica gel layer, the silica gel layer extends to the breach in and fills in the breach.

In a preferred embodiment of the present invention, the wire further comprises a wire or at least two conductors twisted and wound.

In a preferred embodiment of the present invention, the conductor further comprises a copper conductive core and an insulating layer covering the copper conductive core.

The utility model discloses a preferred embodiment, further include the shielding layer includes compound area of plastic-aluminum and nylon woven mesh, compound area of plastic-aluminum and nylon woven mesh indulge the package outside the wire.

In a preferred embodiment of the present invention, the heat insulation layer is made of teflon.

The utility model discloses a preferred embodiment, further include the restrictive coating includes the fire-retardant layer of setting in the restrictive coating inboard, sets up the radioresistance layer in the restrictive coating outside.

In a preferred embodiment of the present invention, the flame retardant layer is made of pearl wool.

In a preferred embodiment of the present invention, it is further included that the radiation-resistant layer is made of a radiation-crosslinked polyolefin material.

In a preferred embodiment of the present invention, the protective layer is further coated with a waterproof layer.

The utility model has the advantages that:

the utility model discloses a supporting layer supports the protection to the wire, improves the anti side pressure ability of cable through setting up the support ring to through setting up breach and silica gel layer outside the support ring, make the cable have certain flexibility, guarantee that the cable can carry out the acute angle and buckle and lay, and adopt the insulating layer to carry out the temperature with cable inner structure and outside and separate, make the cable can use under high temperature insolate, solar radiation's harsh environment, can not make the inside wire temperature of cable rise.

Drawings

Fig. 1 is a schematic structural diagram of a solar cable according to the present invention;

fig. 2 is a schematic structural diagram of an embodiment of the solar cable of the present invention.

The reference numbers in the figures illustrate: 1. a wire; 11. a copper wire; 12. an insulating layer; 2. a shielding layer; 21. an aluminum-plastic composite tape; 22. nylon mesh weaving; 3. a support layer; 31. a support ring; 32. a notch; 33. a silica gel layer 4 and a heat insulation layer; 5. a sheath layer; 51. a flame retardant layer; 52. a radiation-resistant layer; 6. and a waterproof layer.

Detailed Description

The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

Referring to fig. 1, the solar cable of the present invention comprises a wire 1, and a shielding layer 2, a supporting layer 3, a heat insulating layer 4 and a sheath layer 5 sequentially coated outside the wire 1, wherein the shielding layer 2 can prevent signal crosstalk between the wires 1 in different cables, the supporting layer 3 includes a circular ring-shaped supporting ring 31, an inner wall of the supporting ring 31 is attached to the outer side of the shielding layer 2, a plurality of notches 32 are circumferentially formed on the outer wall of the supporting ring 31, the outer wall of the supporting ring 31 is coated with a silica gel layer 33, the silica gel layer 33 extends into the notches 32 and is filled in the notches, the supporting layer 3 is adopted to support and protect the wires, the lateral pressure resistance of the cable is improved by arranging the supporting ring 31, and the notches 32 and the silica gel layer 33 outside the supporting ring 31 are used to make the cable have a certain flexibility, so as to ensure that the cable can be bent and laid at an acute angle, and adopt insulating layer 4 to carry out temperature separation with the outside with cable inner structure, make the cable can use under the harsh environment of high temperature insolate, solar radiation, can not make the inside wire 1 temperature of cable rise.

Referring to fig. 2, in this embodiment, the conductive wire 1 is formed by twisting and weaving three conductors by using single wires, each conductor includes a copper conductive core 11 and an insulating layer 12 covering the copper conductive core 11, crosstalk does not occur between adjacent conductors through the insulating layer 12, and the copper conductive core 11 is a 5-class or 6-class bare copper soft wire; in other embodiments, the lead 1 may be made of one conductor or a plurality of conductors twisted according to actual requirements.

Specifically, shielding layer 2 includes compound area of plastic-aluminum 21 and nylon mesh grid 22, compound area of plastic-aluminum 21 and nylon mesh grid 22 indulge the package outside wire 1, compound area of plastic-aluminum 21 can play electromagnetic shield's effect, and it is fixed to its cladding through nylon mesh grid 22, nylon mesh grid 22 is woven by single line nylon vertically and horizontally staggered and is formed, and nylon mesh grid 22 has that elasticity is good, wear-resisting characteristic.

Specifically, the thermal insulation layer 4 is made of polytetrafluoroethylene, which is a poor thermal conductor, and has good characteristics of high temperature resistance, low temperature resistance, corrosion resistance, weather resistance and the like, so that heat transfer can be effectively blocked, and a thermal insulation effect is achieved.

Specifically, the sheath layer 5 comprises a flame retardant layer 51 arranged on the inner side of the sheath layer 5 and a radiation resistant layer 52 arranged on the outer side of the sheath layer 5, wherein the radiation resistant layer 51 is made of a radiation cross-linked polyolefin material, and the flame retardant layer 52 is made of a pearl cotton material.

The radiation-resistant layer 51 made of radiation cross-linked polyolefin has the characteristics of wide temperature resistance range, battery acid resistance, softness, flame resistance, long service life and the like, and ensures that the cable can be normally used in severe environments such as high-temperature exposure and solar radiation.

The flame retardant layer 52 made of a pearl wool material has excellent flame retardancy and antistatic properties, as well as flexibility and cushioning properties, low thermal conductivity, excellent heat insulation properties, almost no water absorption, excellent water resistance, no corrosion, no influence from various weather conditions, and excellent weather resistance.

In this embodiment, in order to enable the cable to have a certain waterproof effect, a waterproof layer 6 is further coated outside the sheath layer 5, and the waterproof layer 6 is coated outside the sheath layer 5 by waterproof paint.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.

Claims (9)

1. The utility model provides a solar cable, its characterized in that includes the wire and cladding shielding layer, supporting layer, insulating layer and restrictive coating outside the wire in proper order, the supporting layer includes annular support ring of circle, the inner wall subsides of support ring are applied in the outside of shielding layer, a plurality of breachs have been seted up to the outer wall circumference of support ring, the outer wall cladding of support ring has the silica gel layer, the silica gel layer extends to the breach and fills in the breach.

2. The solar cable of claim 1, wherein the conductive wire comprises one wire or at least two conductors twisted and wound.

3. The solar cable of claim 2, wherein the conductor comprises a copper core and an insulating layer surrounding the copper core.

4. The solar cable of claim 1, wherein the shielding layer comprises an aluminum-plastic composite tape and a nylon woven mesh, and the aluminum-plastic composite tape and the nylon woven mesh are longitudinally wrapped outside the conductor.

5. The solar cable of claim 1, wherein the insulation layer is made of polytetrafluoroethylene.

6. The solar cable of claim 1, wherein the sheathing layer comprises a flame retardant layer disposed inside the sheathing layer, and a radiation resistant layer disposed outside the sheathing layer.

7. The solar cable of claim 6, wherein the flame retardant layer is made of a pearl wool material.

8. The solar cable of claim 6, wherein the radiation resistant layer is made of a radiation crosslinked polyolefin material.

9. The solar cable of claim 1, wherein the jacket layer is further coated with a water barrier layer.

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