CN218332089U - Photovoltaic cable - Google Patents

Abstract

The utility model relates to a photovoltaic cable technical field just discloses a photovoltaic cable, including the optic fibre inner core, the fixed cover of surface of optic fibre inner core has connect the insulating layer, the fixed cover of surface of insulating layer has connect the stabilizer layer, the fixed cover of surface of stabilizer layer has connect the protective sheath, the side channel has been seted up to the surface of insulating layer, the annular has been seted up to the surface of stabilizer layer, a hole has been seted up to the inside of stabilizer layer. The utility model discloses a set up certain degree of depth side channel on the surface of insulating layer for the side channel constantly is close optic fibre inner core department, and the stabilizer layer department in the insulating layer outside sets up the annular, and make a hole and the annular of stabilizer layer be linked together, the annular of seting up through the side channel and the annular that utilize certain degree of depth, shorten inside local protection thickness, improve heat diffusion rate, reduce the hindrance of heat diffusion, thereby actual fiber optic cable's self radiating effect has been improved greatly, avoid the fiber optic cable damage that local overheat caused, excellent in use effect.

Description

Photovoltaic cable

Technical Field

The utility model relates to a photovoltaic cable technical field, more specifically say, the utility model relates to a photovoltaic cable.

Background

Solar energy technology will become one of green energy technology in the future, solar energy or Photovoltaic (PV) is widely applied in China, besides the rapid development of photovoltaic power plants supported by governments, private investors are actively building factories and planning to put in production of solar modules sold in the world, the characteristics of a photovoltaic cable are determined by special insulating materials and sheathing materials for the cable, namely cross-linked PE, and after irradiation of an irradiation accelerator, the molecular structure of the cable material is changed, so that the performance of the photovoltaic cable in various aspects 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.

Photovoltaic cable among the prior art, in the use, because photovoltaic cable need carry out better insulation protection, add insulating layer and protective layer in proper order in the outside of optic fibre inner core usually, however under duplicate protection, the optic fibre inner core is stable sealed in the inside of protective layer and insulating layer, nevertheless optic fibre has certain heat in the use, receive the influence of parcel layer upon layer, under the higher condition of optic fibre inner core department temperature, the actual radiating effect is relatively poor, be difficult to timely effectual reduction inner core temperature, thereby make local high temperature, arouse optic fibre information transport's stoppage failure, the in-service use effect is not good.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a photovoltaic cable has the advantage that improves the radiating effect and improves structural stability.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a photovoltaic cable, includes the optic fibre inner core, the fixed external surface cover of optic fibre inner core has connect the insulating layer, the fixed external surface cover of insulating layer has connect the stabilizer layer, the fixed external surface cover of stabilizer layer has connect the protective sheath, the side channel has been seted up to the surface of insulating layer, the annular has been seted up to the surface of stabilizer layer, a hole has been seted up to the inside of stabilizer layer, a hole is linked together with the annular, the collar has been cup jointed in the internal surface activity of annular.

As a preferred technical scheme of the utility model, the arc groove has been seted up to the surface of insulating layer, the internal fixed surface in arc groove has cup jointed the enhancement strip.

Through the arc groove that utilizes the insulating layer surface to set up for strengthen the strip and have the fixed inside of cup jointing in the arc groove of sufficient area, improve the installation stability of strengthening the strip, utilize the enhancement strip that the annular distributes to improve fiber cable's overall stability simultaneously, avoid too soft and do not have the support nature.

As an optimal technical scheme of the utility model, the quantity of strengthening the strip is four, four strengthen the equidistant distribution in the outside of insulating layer of strip annular, four strengthen the strip and be made.

By utilizing the reinforcing strips made of four Mn, the reinforcing strips have good and stable elasticity, provide sufficient bending deformation capacity under the operation of bending and the like, and after the external force is relieved, the optical fiber cable has a good recovery effect, the form stability of the optical fiber cable is kept, and the using effect is improved.

As an optimal technical scheme of the utility model, the stabilizer layer is made for epoxy, the internal surface and the enhancement strip fixed connection of stabilizer layer.

Through the stabilizer layer that utilizes epoxy to make, reinforcing whole anticorrosive and water-proof effects guarantee that protective sheath surface damages the back, and fiber optic cable is inside to have good protection and anticorrosive ability at all, has improved fiber optic cable's in-service use tolerance greatly, improves the stability in use to through with enhancement strip fixed connection, further improve the stability of enhancement strip, avoid the enhancement strip to take out at will.

As a preferred technical scheme of the utility model, no. two holes have all been seted up to the internal surface and the surface of collar, no. two holes and a hole one-to-one.

Through utilizing inside hollow collar, realize the support of annular, avoid local cavity, and utilize hollow collar to reduce the heat dissipation and block, guarantee that the heat dissipation is good, and the cooperation is with No. two holes that No. one hole corresponds, improves the radiating effect.

As an optimal technical scheme of the utility model, the collar is made for the iron-carbon alloy, the linear equidistant distribution of collar is on the surface of stabilizer layer.

Through the collar that utilizes iron carbon alloy to make for the collar improves the local rigidity of fiber cable, when arranging the position to installing especially, adopts the collar to contact, improves and supports and resistance to compression effect.

As an optimized technical solution of the present invention, the number of the side grooves is twelve, twelve every three side grooves is a group and is divided into four groups, four groups the side grooves and the reinforcing bars are alternately distributed.

Through utilizing the side channel that multiunit annular distributes, reduce the heat dissipation and hinder, improve the radiating rate, guarantee to have good radiating effect.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a set up certain degree of depth side channel on the surface of insulating layer, make the side channel constantly be close optic fibre inner core department, and the stabilizer layer department in the insulating layer outside sets up the annular, and make a hole of stabilizer layer be linked together with the annular, the annular of seting up through the side channel and the annular of utilizing certain degree of depth, shorten inside local protection thickness, improve heat diffusion rate, reduce the hindrance of heat diffusion, thereby actual fiber optic cable's self radiating effect has been improved greatly, avoid the fiber optic cable damage that local overheat caused, excellent in use effect.

2. The utility model discloses a set up the spout at the surface of insulating layer to add the enhancement strip in the spout, utilize the enhancement strip of elasticity material, the annular distributes in fiber optic cable's inside, when improving structural strength, effectively utilizes elasticity down, after the circumstances such as crooked, has good and quick speed of recovering, avoids the crooked condition that appears the fracture damage after using a period of time of pipeline cable, has prolonged fiber optic cable's life greatly.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

FIG. 4 is an exploded view of the reinforcing strip of the present invention between the insulating layer;

fig. 5 is an exploded view of the present invention between the stabilizer and the mounting ring.

In the figure: 1. an optical fiber inner core; 2. an insulating layer; 3. a stabilizing layer; 4. a protective sleeve; 5. a side groove; 6. an arc groove; 7. a reinforcing strip; 8. a ring groove; 9. a first hole; 10. a mounting ring; 11. and a second hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 5, the utility model provides a photovoltaic cable, including optic fibre inner core 1, optic fibre inner core 1's fixed surface has cup jointed insulating layer 2, and the fixed surface of insulating layer 2 has cup jointed stabilizer layer 3, and stabilizer layer 3's fixed surface has cup jointed protective sheath 4, and side channel 5 has been seted up to insulating layer 2's surface, and annular 8 has been seted up to stabilizer layer 3's surface, and a hole 9 has been seted up to stabilizer layer 3's inside, and a hole 9 is linked together with annular 8, and the interior surface activity of annular 8 has cup jointed collar 10.

Wherein, the outer surface of insulating layer 2 is seted up arc groove 6, and the internal surface of arc groove 6 is fixed to be cup jointed and is strengthened strip 7.

Through the arc groove 6 that utilizes 2 surfaces of insulating layer to set up for strengthen the strip 7 and have the fixed cover of sufficient area and connect in the inside of arc groove 6, improve the installation of strengthening the strip 7 stably, utilize the enhancement strip 7 of annular distribution to improve fiber cable's overall stability simultaneously, avoid too soft and do not have the support nature.

The number of the reinforcing strips 7 is four, the four reinforcing strips 7 are annularly distributed on the outer side of the insulating layer 2 at equal intervals, and the four reinforcing strips 7 are made of 65 Mn.

By utilizing the four reinforcing strips made of 65Mn, the reinforcing strips 7 have good and stable elasticity, provide sufficient bending deformation capacity under the operation of bending and the like, have good recovery effect after the external force is relieved, keep the form of the optical fiber cable stable and improve the use effect.

Wherein, the stable layer 3 is made of epoxy resin, and the inner surface of the stable layer 3 is fixedly connected with the reinforcing strip 7.

Through utilizing the stable layer 3 that epoxy made, reinforcing whole anticorrosive and water-proof effects guarantee that protective sheath 4 surface damage back, the inside good protection and the anticorrosive ability of having of optical fiber cable anyhow has improved optical fiber cable's in-service use tolerance greatly, improve the stability in use to through with strengthen 7 fixed connection, further improve the stability of strengthening 7, avoid strengthening 7 to take out at will.

Wherein, the internal surface and the surface of collar 10 all have seted up No. two holes 11, no. two holes 11 and a hole 9 one-to-one.

Through utilizing inside hollow collar 10, realize the support of annular 8, avoid local cavity, and utilize hollow collar 10 to reduce the heat dissipation and block, guarantee that the heat dissipation is good, and the cooperation is with No. two holes 11 that No. 9 correspond, improve the radiating effect.

Wherein, the mounting ring 10 is made of iron-carbon alloy, and the mounting ring 10 is linearly distributed on the outer surface of the stabilizing layer 3 at equal intervals.

Through the collar 10 of utilizing iron carbon alloy to make for collar 10 improves the local rigidity of fiber optic cable, when arranging the position to installing especially, adopts collar 10 to contact, improves support and resistance to compression effect.

The number of the side grooves 5 is twelve, every three side grooves 5 are divided into four groups, and the four groups of side grooves 5 and the reinforcing strips 7 are alternately distributed.

Through utilizing the side channel 5 that multiunit annular distributes, reduce the heat dissipation and hinder, improve the radiating rate, guarantee to have good radiating effect.

The utility model discloses a theory of operation and use flow: when the optical fiber cable is bent, the multiple groups of reinforcing strips 7 are elastically bent, and after the reinforcing strips are in contact with external force, the elastic reinforcing strips 7 are quickly restored, so that the shape of the optical fiber cable is restored; when the optical fiber cable is locally overheated, heat is quickly dissipated through the side groove 5 at the insulating layer 2, enters the inner part of the ring groove 8 through the first hole 9 at the stabilizing layer 3 after contacting the stabilizing layer 3, penetrates through the mounting ring 10 to contact with the protective sleeve 4, and gradually dissipates heat outwards.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. A photovoltaic cable comprising an optical fiber inner core (1), characterized in that: insulating layer (2) have been cup jointed to the external fixed surface of optic fibre inner core (1), the external fixed surface of insulating layer (2) has cup jointed stabilizer layer (3), the external fixed surface of stabilizer layer (3) has cup jointed protective sheath (4), side channel (5) have been seted up to the surface of insulating layer (2), annular (8) have been seted up to the surface of stabilizer layer (3), hole (9) have been seted up to the inside of stabilizer layer (3), hole (9) are linked together with annular (8), collar (10) have been cup jointed in the internal surface activity of annular (8).

2. A photovoltaic cable according to claim 1, wherein: an arc groove (6) is formed in the outer surface of the insulating layer (2), and a reinforcing strip (7) is fixedly sleeved on the inner surface of the arc groove (6).

3. A photovoltaic cable according to claim 2, wherein: the number of the reinforcing strips (7) is four, the four reinforcing strips (7) are annularly distributed on the outer side of the insulating layer (2) at equal intervals, and the four reinforcing strips (7) are made of 65 Mn.

4. The photovoltaic cable of claim 1, wherein: the stabilizing layer (3) is made of epoxy resin, and the inner surface of the stabilizing layer (3) is fixedly connected with the reinforcing strip (7).

5. A photovoltaic cable according to claim 1, wherein: no. two holes (11) are formed in the inner surface and the outer surface of the mounting ring (10), and the No. two holes (11) correspond to the No. one holes (9) one to one.

6. The photovoltaic cable of claim 1, wherein: the mounting ring (10) is made of iron-carbon alloy, and the mounting ring (10) is linearly distributed on the outer surface of the stabilizing layer (3) at equal intervals.

7. A photovoltaic cable according to claim 1, wherein: the number of the side grooves (5) is twelve, every three side grooves (5) are divided into four groups, and the four groups of the side grooves (5) and the reinforcing strips (7) are alternately distributed.

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