CN218513195U - Special cable for photovoltaic power generation - Google Patents

Abstract

The utility model relates to the technical field of photovoltaic cables, in particular to a special cable for photovoltaic power generation, which improves the service life of the cable and ensures the normal use of the cable in a long-term working state; the conductor comprises a conductor, insulating layers, hot melt adhesive layers, stretch-resistant layers, isolating layers and protective layers, wherein the insulating layers are sleeved outside the conductor, the hot melt adhesive layers are sleeved outside a plurality of groups of insulating layers, the stretch-resistant layers are sleeved outside the hot melt adhesive layers, the isolating layers are sleeved outside the stretch-resistant layers, and the protective layers are sleeved outside the isolating layers; the protective layer is made of excellent radiation cross-linked polyolefin material.

Description

Cable special for photovoltaic power generation

Technical Field

The utility model relates to a photovoltaic cable's technical field especially relates to a photovoltaic power generation private cable.

Background

The characteristics of the photovoltaic cable are determined by the special insulating material and the special sheathing material of the cable, which are called as cross-linked PE, and after the cable is irradiated by an irradiation accelerator, the molecular structure of the cable material can be changed, so that the performance of the cable in one aspect is provided. Mechanical load resistance in fact, during installation and maintenance, the cables can be routed on sharp edges of the roof structure, while the cables must withstand pressure, bending, tension, cross tensile loads and strong impacts. If the cable sheath is not strong enough, the cable insulation layer will be damaged seriously, thereby affecting the service life of the whole cable, or causing the problems of short circuit, fire hazard, personnel injury danger and the like.

The special photovoltaic cable is mainly used for connecting a solar photovoltaic system and is often used in severe environments such as high-temperature, ultraviolet radiation and humid environments. For materials, it is necessary to satisfy weather resistance, ozone resistance, flame retardancy, moisture and heat resistance, acid and alkali resistance, and the like.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an improve the life of cable, guarantee a photovoltaic power generation private cable of cable normal use under long-term operating condition.

The utility model discloses a special cable for photovoltaic power generation, which comprises a conductor, an insulating layer, a hot melt adhesive layer, a stretch-proof layer, an isolation layer and a protective layer, wherein the insulating layer is sleeved outside the conductor, the hot melt adhesive layer is sleeved outside a plurality of groups of insulating layers, the stretch-proof layer is sleeved outside the hot melt adhesive layer, the isolation layer is sleeved outside the stretch-proof layer, and the protective layer is sleeved outside the isolation layer; the protective layer is made of excellent radiation cross-linked polyolefin material.

The utility model discloses a photovoltaic power generation private cable, the inoxidizing coating includes interior lag, outer lag and a supporting beam, and interior lag and outer lag are connected through a supporting beam of multiunit.

The utility model discloses a photovoltaic power generation private cable still includes the carbon fiber support, and the carbon fiber support mounting is at multiunit insulating layer middle part to separate the multiunit insulating layer one by one.

The utility model discloses a photovoltaic power generation private cable, multiunit insulating layer and hot melt adhesive layer are connected the clearance packing and are had the talcum powder.

The utility model discloses a photovoltaic power generation private cable, be provided with multiunit V type groove on the interior protective sheath, V type groove contained angle is less than 30, and V type groove is provided with the fillet.

The utility model discloses a photovoltaic power generation private cable, the stretch-proofing layer is worked out by copper wire and cellosilk and is formed.

The utility model discloses a photovoltaic power generation private cable, outer lag outside equipment has multiunit marking line.

The utility model discloses a photovoltaic power generation private cable, the conductor adopts IEC 60228's naked copper conductor transposition of 5 types or 6 types.

Compared with the prior art, the beneficial effects of the utility model are that: make the conductor carry out insulation protection and isolation through the insulating layer, make multiunit insulating layer play waterproof sealing's effect through hot melt adhesive layer, make the whole stretch-proofing effect of cable increase the improvement intensity through stretch-proofing layer, make multiunit conductor protect against radiation through the isolation layer and keep apart, adopt excellent irradiation cross-linking polyolefin material through the inoxidizing coating, this material has characteristics such as fine weatherability, resistant ozone, fire-retardant, resistance to heat and humidity, acid and alkali-resistance, the life of cable has been improved, guarantee the normal use of cable under long-term operating condition.

Drawings

Fig. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic side view of the present invention;

fig. 3 is a schematic cross-sectional structure of the present invention;

FIG. 4 is an enlarged view of the portion A of FIG. 3;

in the drawings, the reference numbers: 1. a conductor; 2. an insulating layer; 3. a hot melt adhesive layer; 4. a stretch resistant layer; 5. an isolation layer; 6. a protective layer; 7. an inner protective sleeve; 8. an outer protective sleeve; 9. a support beam; 10. a carbon fiber support; 11. talc powder; 12. and a V-shaped groove.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1 to 4, the utility model discloses a special cable for photovoltaic power generation, which comprises a conductor 1, an insulating layer 2, a hot melt adhesive layer 3, a stretch-proof layer 4, an isolation layer 5 and a protection layer 6, wherein the insulating layer 2 is sleeved outside the conductor 1, the hot melt adhesive layer 3 is sleeved outside a plurality of groups of insulating layers 2, the stretch-proof layer 4 is sleeved outside the hot melt adhesive layer 3, the isolation layer 5 is sleeved outside the stretch-proof layer 4, and the protection layer 6 is sleeved outside the isolation layer 5; the protective layer 6 is made of excellent irradiation cross-linked polyolefin material; make conductor 1 carry out insulation protection and isolation through insulating layer 2, make multiunit insulating layer 2 play waterproof sealing's effect through hot melt adhesive layer 3, make the whole stretch-proofing effect of cable increase the improvement intensity through stretch-proofing layer 4, make multiunit conductor 1 protect against radiation through isolation layer 5 and keep apart, adopt excellent irradiation cross-linking polyolefin material through inoxidizing coating 6, this material has fine weatherability, ozone-resistant, fire-retardant, resistance to heat and humidity, characteristics such as acid and alkali-resistance, the life of cable has been improved, guarantee the normal use of cable under long-term operating condition.

The utility model discloses a special cable for photovoltaic power generation, the protective layer 6 comprises an inner protective cover 7, an outer protective cover 8 and a supporting beam 9, and the inner protective cover 7 and the outer protective cover 8 are connected through a plurality of groups of supporting beams 9; supporting beam 9 makes interior lag 7 and outer lag 8 support through the multiunit and form well cavity when guaranteeing intensity, makes the whole resistance to compression of cable through well cavity, and anti impact strength increases, improves the cable and uses place adaptability.

The utility model discloses a special cable for photovoltaic power generation, which also comprises a carbon fiber support 10, wherein the carbon fiber support 10 is arranged in the middle of the plurality of groups of insulating layers 2 and separates the plurality of groups of insulating layers 2 one by one; make multiunit insulating layer 2 carry out alternate segregation through carbon fiber support 10, prevent mutual interference between the conductor 1 that the insulating layer 2 damage caused, prevent the wearing and tearing that insulating layer 2 direct contact caused, use and play the buffering guard action.

The utility model discloses a special cable for photovoltaic power generation, the connecting gaps of a plurality of groups of insulating layers 2 and hot melt adhesive layers 3 are filled with talcum powder 11; the talcum powder 11 mainly has the functions of filling agent, high temperature resistance, fire prevention, flame retardance, wear resistance, corrosion resistance, insulation, isolation and lubrication, and reduces the peeling difficulty of the cable.

The utility model relates to a special cable for photovoltaic power generation, a plurality of groups of V-shaped grooves 12 are arranged on the inner protective sleeve 7, the included angle of the V-shaped grooves 12 is less than 30 degrees, and the V-shaped grooves 12 are provided with fillets; the cable is difficult to strip by arranging the V-shaped groove 12, the round angle and the included angle which are arranged through the V-shaped groove 12 are smaller than 30 degrees, so that the cable is prevented from being cracked when being extruded or bent, and the integral strength of the cable is improved.

In the utility model, the anti-stretching layer 4 is woven by copper wires and fiber wires; the whole strength of the cable is increased through the anti-stretching layer 4, and the cable is prevented from being damaged when being pulled strongly.

The utility model discloses a special cable for photovoltaic power generation, a plurality of groups of marking lines are arranged outside an outer protective sleeve 8; the cable is more striking and convenient to notice in time through the marking line, the hollow cavity position is convenient to find through the notice, and the wire stripping difficulty is reduced.

The utility model discloses a special cable for photovoltaic power generation, conductor 1 adopts 5 or 6 bare copper conductors of IEC60228 to strand; the conductor 1 is stranded by 5 or 6 bare copper conductors of IEC60228, so that the softness of the whole conductor 1 is improved.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (8)

1. The photovoltaic power generation special cable is characterized by comprising a conductor (1), an insulating layer (2), a hot melt adhesive layer (3), a stretch-resistant layer (4), an isolating layer (5) and a protective layer (6), wherein the insulating layer (2) is sleeved outside the conductor (1), the hot melt adhesive layer (3) is sleeved outside a plurality of groups of insulating layers (2), the stretch-resistant layer (4) is sleeved outside the hot melt adhesive layer (3), the isolating layer (5) is sleeved outside the stretch-resistant layer (4), and the protective layer (6) is sleeved outside the isolating layer (5);

the protective layer (6) is made of an excellent irradiation crosslinking polyolefin material.

2. The cable special for photovoltaic power generation as claimed in claim 1, wherein the protective layer (6) comprises an inner protective sleeve (7), an outer protective sleeve (8) and supporting beams (9), and the inner protective sleeve (7) and the outer protective sleeve (8) are connected through a plurality of groups of supporting beams (9).

3. The special cable for photovoltaic power generation as claimed in claim 1, further comprising a carbon fiber support (10), wherein the carbon fiber support (10) is installed in the middle of the multiple groups of insulating layers (2) and separates the multiple groups of insulating layers (2) one by one.

4. The cable special for photovoltaic power generation as claimed in claim 1, wherein a plurality of groups of connecting gaps between the insulating layer (2) and the hot melt adhesive layer (3) are filled with talcum powder (11).

5. The cable special for photovoltaic power generation as claimed in claim 2, wherein a plurality of groups of V-shaped grooves (12) are arranged on the inner protective sleeve (7), the included angle of the V-shaped grooves (12) is less than 30 degrees, and the V-shaped grooves (12) are provided with round corners.

6. The cable special for photovoltaic power generation as claimed in claim 1, wherein the tensile layer (4) is woven by copper wires and fiber wires.

7. The cable special for photovoltaic power generation as claimed in claim 2, wherein the outer side of the outer protective sleeve (8) is provided with a plurality of groups of marking lines.

8. The special cable for photovoltaic power generation as claimed in claim 1, wherein the conductor (1) is stranded by 5 or 6 bare copper conductors of IEC 60228.

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