High cold-resistant photovoltaic cable

Abstract

The utility model discloses a highly cold-resistant photovoltaic cable, which comprises a cable body, a protective wear-resistant layer arranged on the outermost side of the cable body, battery cell bodies arranged at the inner center of the protective wear-resistant layer at equal angles, and a wrapping filling layer arranged on the outer walls of the battery cell bodies arranged at equal angles. A rigid isolation layer and an elastic supporting layer are arranged in the cable body, and the elastic supporting layer is arranged on the inner wall of the rigid isolation layer. According to the high-cold-resistance photovoltaic cable, the hard isolation layer in the cable body prevents external low temperature from being transmitted to the interior through direct contact through the polygonal rings and the flexible connecting rings which are distributed in a staggered mode, the cable can adapt to the bending and twisting shape in the embedding and mounting process, and the elastic supporting layer improves the overall compressive strength; and meanwhile, the thermal insulation protection layer and the coating filling layer protect the battery cell to prevent heat dissipation from reducing the cold resistance.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of power cable, concretely is a high cold resistant photovoltaic cable. BACKGROUND

[0002] Power cable is the cable for transmission and distribution of electric energy, is often used in urban underground power network, power station outgoing line occasion, main function and overhead conductor are same, but in power system, power cable can be laid in various environments, has hidden security, is not disturbed by outside climate change and maintains less, durable etc.

[0003] The utility model of publication No. CN205789217U discloses a cold resistant power cable, the armor is steel wire armor, steel wire armor has waterproof, can make cable also can be applied in water, has insulating thermal insulation layer, cold resistant sheath and waterproof armor, make cable can keep good performance under low temperature, have excellent cold resistance, can still have good performance under-30 to-40 degree condition.

[0004] But the high cold resistant photovoltaic cable of above-mentioned disclosure still has following problem in actual use process: although the cable core in the cable is protected through cold resistant sheath, insulating thermal insulation layer, but such power cable in use process because long time is in low temperature environment, the material of its outer coating is easy to lose structural characteristics, and then because the bending, torsional of the arrangement causes the protective layer to crack, can not effectively realize effective protection to the internal electric core.

[0005] Therefore, we propose a high cold resistant photovoltaic cable to solve the problems mentioned above. UTILITY MODEL CONTENTS

[0006] The utility model discloses a high cold resistant photovoltaic cable, and the cable core in the cable is protected through cold resistant sheath, insulating thermal insulation layer, but such power cable in use process because long time is in low temperature environment, the material of its outer coating is easy to lose structural characteristics, and then because the bending, torsional of the arrangement causes the protective layer to crack, can not effectively realize effective protection to the internal electric core.

[0007] To achieve the above object, the utility model provides the following technical scheme: a high cold resistant photovoltaic cable, including cable body and the protective wear layer that sets up in the outermost place of cable body, the electric core body of the inside center position of protective wear layer is arranged at equal angle, and the outer wall of electric core body arranged at equal angle is provided with the cladding filling layer, the hard isolation layer and the elastic support layer are arranged in the cable body, and the elastic support layer is arranged in the inner wall of hard isolation layer.

[0008] Preferably, the hard isolation layer comprises a plurality of ring loops and flexible connecting rings, and the plurality of ring loops and the flexible connecting rings are arranged in an equidistant staggered combination to form the hard isolation layer.

[0009] Preferably, the hard isolation layer comprises a plurality of ring loops and flexible connecting rings, and the plurality of ring loops and the flexible connecting rings are arranged in an equidistant staggered combination to form the hard isolation layer.

[0010] Preferably, the hard isolation layer comprises a plurality of ring loops and flexible connecting rings, and the plurality of ring loops and the flexible connecting rings are arranged in an equidistant staggered combination to form the hard isolation layer.

[0011] Preferably, the hard isolation layer comprises a plurality of ring loops and flexible connecting rings, and the plurality of ring loops and the flexible connecting rings are arranged in an equidistant staggered combination to form the hard isolation layer.

[0012] Preferably, the hard isolation layer comprises a plurality of ring loops and flexible connecting rings, and the plurality of ring loops and the flexible connecting rings are arranged in an equidistant staggered combination to form the hard isolation layer.

[0013] Preferably, the hard isolation layer comprises a plurality of ring loops and flexible connecting rings, and the plurality of ring loops and the flexible connecting rings are arranged in an equidistant staggered combination to form the hard isolation layer.

[0014] Compared with the prior art, the photovoltaic cable has the advantages that: the hard isolation layer in the cable body is arranged in an equidistant staggered combination of a plurality of ring loops and flexible connecting rings, so that the external low temperature is not directly transmitted to the inside, and the bending and twisting of the cable during installation is adapted, the elastic support layer improves the overall compression strength, the heat insulation protective layer and the covering filling layer protect the battery core, prevent heat dissipation and reduce the cold resistance characteristics, and the specific contents are as follows:

[0015] 1. The protective wear-resistant layer protects the overall cable body, improves the strength during dragging and burying, the plurality of ring loops of the hard isolation layer are in contact with the protective wear-resistant layer through the side edges, the external low temperature is not directly transmitted to the inside, the bending and twisting of the cable during installation is adapted through the deformation of the flexible connecting ring, and the strength of the overall cable body is improved.

[0016] 2. The dispersion arc plate is attached to the inner wall of the rigid isolation layer, and the abutting branch separates the elastic support layer and the rigid isolation layer, and the anti-bending strip is filled between the adjacent abutting branches, thereby dispersing during external pressure and preventing pressure on the internal battery body.

[0017] 3. The heat protection layer and the elastic support layer are in contact with each other, thereby avoiding the dispersion of internal heat to the outside, preventing the conduction of external low temperature to the inside, and wrapping the battery body with the wrapping and filling layer to improve the temperature cycle of the battery body during power transmission and prevent heat dispersion and reduce the cold resistance characteristics. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the protective wear-resistant layer of the utility model;

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the rigid isolation layer of the utility model;

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the protective wear-resistant layer of the utility model; Figure 2 It is a schematic diagram of the cross-sectional structure of the protective wear-resistant layer of the utility model;

[0022] Figure 5 It is a schematic diagram of the battery body installation structure of the utility model.

[0023] In the figure: 1, cable body; 2, protective wear-resistant layer; 3, battery body; 4, rigid isolation layer; 5, elastic support layer; 6, multi-edge ring; 7, flexible connecting ring; 8, abutting branch; 9, dispersion arc plate; 10, anti-bending strip; 11, heat protection layer; 12, wrapping and filling layer. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] Please refer to Figures 1-5 The utility model provides the following technical solutions:

[0026] Embodiment 1: In order to solve the problems existing in the use of the existing cold-resistant cable, therefore, the embodiment solves the problems through the following technical scheme, a high cold-resistant photovoltaic cable, comprising a cable body 1, and a protective wear-resistant layer 2 arranged on the outermost side of the cable body 1, a hard isolation layer 4 and an elastic support layer 5 are arranged in the cable body 1, and the elastic support layer 5 is arranged on the inner wall of the hard isolation layer 4.

[0027] The hard isolation layer 4 comprises a plurality of ring-shaped rings 6 and flexible connecting rings 7, and the hard isolation layer 4 is formed by equidistantly interlaced combination between the plurality of ring-shaped rings 6 and the flexible connecting rings 7; the outer diameter of the plurality of ring-shaped rings 6 contained in the hard isolation layer 4 is greater than the outer diameter of the flexible connecting rings 7, and the inner diameter of the plurality of ring-shaped rings 6 is the same as the inner diameter of the flexible connecting rings 7, and the hard isolation layer 4 is arranged on the inner wall of the protective wear-resistant layer 2; the hard isolation layer 4 is in contact with the inner wall of the protective wear-resistant layer 2 through the plurality of ring-shaped rings 6, and the flexible connecting rings 7 contained in the hard isolation layer 4 are not in contact with the inner wall of the protective wear-resistant layer 2, and the hard isolation layer 4 is formed by the interlaced arrangement of the plurality of ring-shaped rings 6 and the flexible connecting rings 7 to form the hard compression resistance and flexible bending effect.

[0028] As shown in Figures 1-2 , the cable body 1 is protected by the protective wear-resistant layer 2 arranged on the outermost side, which improves the strength during dragging and burying, avoids damage to the internal structure, and at the same time, the hard isolation layer 4 arranged on the inner side of the protective wear-resistant layer 2 is interlaced between the plurality of ring-shaped rings 6 and the flexible connecting rings 7, the plurality of ring-shaped rings 6 are in contact with the protective wear-resistant layer 2 through the side edges, which avoids the direct contact of the external low temperature with the internal structure, and the bending and twisting burying mode is adapted through the deformation of the flexible connecting rings 7, so as to improve the strength of the whole cable body 1.

[0029] Embodiment 2: In order to solve the problems existing in the use of the existing cold-resistant cable, therefore, the embodiment solves the problems through the following technical scheme, the outer wall of the elastic support layer 5 is fixedly provided with resistance branches 8 at equal angles, the outer end of the resistance branch 8 is fixedly provided with a dispersion arc plate 9, and the dispersion arc plate 9 arranged at equal angles is connected to the inner wall of the hard isolation layer 4; the outer side of the elastic support layer 5 is provided with anti-bending ribs 10 at equal angles, the anti-bending ribs 10 are filled between adjacent resistance branches 8, and the anti-bending ribs 10 are used to disperse the bending pressure.

[0030] As shown in Figures 3-4 , the elastic support layer 5 is supported by the resistance branches 8 and the dispersion arc plates 9 arranged on the outermost side, the dispersion arc plates 9 are connected to the inner wall of the hard isolation layer 4, and the resistance branches 8 separate the elastic support layer 5 and the hard isolation layer 4, and at the same time, the anti-bending ribs 10 are filled between adjacent resistance branches 8, so as to disperse the external pressure and prevent the internal battery body 3 from being pressed.

[0031] In order to solve the problems existing in the use of the existing cold-resistant cable, the technical scheme is adopted in the embodiment, the electric core body 3 arranged at the equal angle is arranged at the inner center position of the wear-resistant layer 2, the outer wall of the electric core body 3 arranged at the equal angle is provided with the cladding filling layer 12, the outer side of the cladding filling layer 12 is provided with the heat preservation protection layer 11, the outer wall of the heat preservation protection layer 11 is connected with the inner wall of the elastic supporting layer 5 in a mutually adhering mode, and the heat preservation protection layer 11 and the cladding filling layer 12 are used for isolating the external low temperature, so that the cold-resistant effect of the electric core body 3 is ensured.

[0032] As shown in Figure 5 The heat preservation protection layer 11 and the elastic supporting layer 5 are in contact with each other, so that the internal heat can be prevented from being dissipated to the outside, and the external low temperature can be prevented from being conducted to the inside, the cladding filling layer 12 is used for wrapping and protecting the electric core body 3, so that the temperature circulation of the electric core body 3 is improved in the power transmission process, and the heat dissipation is prevented, and the cold-resistant characteristic is improved.

[0033] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement and the like within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A high-cold-resistant photovoltaic cable, comprising a cable body (1) and a protective wear-resistant layer (2) disposed on the outermost side of the cable body (1), wherein a cell body (3) is disposed at an equal angle at the inner center of the protective wear-resistant layer (2), and the outer wall of the cell body (3) disposed at an equal angle is provided with a covering and filling layer (12), characterized in that, The cable body (1) is provided with a rigid isolation layer (4) and an elastic support layer (5), and the elastic support layer (5) is arranged on the inner wall of the rigid isolation layer (4).

2. A highly cold-resistant photovoltaic cable according to claim 1, characterized in that: The rigid isolation layer (4) comprises a plurality of polygonal rings (6) and flexible connecting rings (7), and the polygonal rings (6) and the flexible connecting rings (7) are arranged at equal distances and staggered to form the rigid isolation layer (4).

3. A highly cold-resistant photovoltaic cable according to claim 2, characterized in that: The outer diameter of the polygonal ring (6) is greater than the outer diameter of the flexible connecting ring (7), the inner diameter of the polygonal ring (6) is the same as the inner diameter of the flexible connecting ring (7), and the rigid isolation layer (4) is arranged on the inner wall of the wear-resistant protective layer (2).

4. A highly cold-resistant photovoltaic cable according to claim 3, characterized in that: The rigid isolation layer (4) is in contact with the inner wall of the wear-resistant protective layer (2) through the polygonal ring (6), and the flexible connecting ring (7) of the rigid isolation layer (4) is not in contact with the inner wall of the wear-resistant protective layer (2), and the polygonal ring (6) and the flexible connecting ring (7) arranged staggered form a rigid compression and flexible bending effect.

5. The high cold-resistant photovoltaic cable according to claim 1, characterized in that: The outer wall of the elastic support layer (5) is fixedly provided with a contact branch (8) at equal angles, the outer end of the contact branch (8) is fixedly provided with a dispersion arc plate (9), and the dispersion arc plates (9) arranged at equal angles are connected to the inner wall of the rigid isolation layer (4).

6. A highly cold-resistant photovoltaic cable according to claim 5, characterized in that: The outer side of the elastic support layer (5) is provided with a bending-resistant rib (10) at equal angles, the bending-resistant rib (10) is filled between adjacent contact branches (8), and the bending-resistant rib (10) is used for dispersing the bending pressure.

7. The high cold-resistant photovoltaic cable according to claim 1, characterized in that: The outer side of the covering and filling layer (12) is provided with a heat preservation protective layer (11), the outer wall of the heat preservation protective layer (11) is connected to the inner wall of the elastic support layer (5), and the heat preservation protective layer (11) and the covering and filling layer (12) are used for isolating external low temperature and ensuring the cold resistance effect of the battery body (3).

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