High-strength damage-resistant cable structure used in photovoltaic field

Abstract

The utility model discloses a high-strength anti-damage cable structure used in the photovoltaic field, which comprises an anti-compression base core, a stranded cable, an insulating outer anti-compression sleeve, an anti-compression conductor and a wear-resistant rubber layer which are sequentially arranged from inside to outside, the stranded cable is attached to the outer surface of the anti-compression base core, the anti-compression conductor is attached to the outer surface of the insulating outer anti-compression sleeve, and the wear-resistant rubber layer is attached to the outer surface of the anti-compression base core. An insulating layer is filled between the compression-resistant base core and the insulating outer compression-resistant sleeve to wrap the stranded cable, and an insulating layer is filled between the compression-resistant conductor and the wear-resistant rubber layer to wrap the compression-resistant conductor. Through the structure of the compression-resistant base core and the compression-resistant sleeve which are arranged on the inner layer and the outer layer, external impact on the cable is buffered and unloaded through an elastic structure, the cable cores are protected, and the impact brought by a severe environment is resisted through multiple structures.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable technical field especially a high strength anti -damage cable structure for photovoltaic field. BACKGROUND

[0002] As an important part of photovoltaic power generation system, photovoltaic cable undertakes the important task of power transmission. Since photovoltaic power stations are usually built outdoors, the environment is harsh, and the cable is exposed to sunlight, rain, high temperature, low temperature, ultraviolet radiation and other conditions for a long time, which is prone to aging, cracking, insulation performance degradation and other problems, seriously affecting the safe and stable operation of the photovoltaic system. The existing photovoltaic cable is generally composed of tinned copper core conductor and hinged polyethylene theater material, which has the characteristics of small size, light weight, good mechanical properties, strong chemical stability, etc. It can be used in harsh environmental conditions, such as high temperature and ultraviolet radiation, and has good corrosion resistance, high temperature resistance, acid and alkali resistance, wear resistance and anti-aging performance.

[0003] Because the existing photovoltaic power station has various site types, and faces some harsh natural environment, the photovoltaic cable used for transmission may encounter various types of torque impact, so the cable in these environments needs to have very high anti-damage characteristics, but the existing photovoltaic cable cannot meet the above requirements. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide a high-strength anti-damage cable structure for the photovoltaic field, which solves the problem that the existing photovoltaic cable cannot meet the high-strength impact in harsh use environment and is easy to cause damage.

[0005] To solve the above technical problems, the utility model adopts the technical scheme of:

[0006] A high-strength anti-damage cable structure for the photovoltaic field, comprising a compression-resistant base core, a stranded cable, an insulating outer compression-resistant sleeve, a compression-resistant conductor and a wear-resistant rubber layer arranged in order from inside to outside, the stranded cable is attached to the outer surface of the compression-resistant base core, the compression-resistant conductor is attached to the outer surface of the insulating outer compression-resistant sleeve, the compression-resistant base core and the insulating outer compression-resistant sleeve are filled with an insulating layer wrapping the stranded cable, and the compression-resistant conductor and the wear-resistant rubber layer are filled with an insulating layer wrapping the compression-resistant conductor.

[0007] The compression-resistant base core is filled with a buffer insulating layer.

[0008] The compression-resistant base core is composed of a plurality of arc-shaped concave compression-resistant plates intersecting with each other, and the outer surface of the arc-shaped concave compression-resistant plate is attached to the stranded cable.

[0009] The above-mentioned stranded cable is composed of a plurality of stranded twisted wire cores after being stranded and wrapped by an inner insulation sleeve, each twisted wire core is stranded by a plurality of conductive wire cores, and the surface of the inner insulation sleeve is attached to the surface of the arc-shaped inner concave compression plate.

[0010] The above-mentioned insulation outer compression sleeve is composed of a plurality of arc-shaped outer convex compression plates intersecting with each other, the elastic pressure-bearing concave surface is formed at the joint of adjacent arc-shaped outer convex compression plates and is attached to the compression conductor.

[0011] The above-mentioned compression conductor is powered by a power taking clamp at the cable end.

[0012] The above-mentioned power taking clamp comprises a power taking sleeve, the power taking sleeve is tubular, the lower surface of the power taking sleeve is attached to the lower convex surface of the compression conductor, a space is arranged between the upper surface of the power taking sleeve and the upper arc surface of the compression conductor, a screwing clamp is arranged on the upper end surface of the power taking sleeve for clamping the compression conductor, and a power taking terminal is arranged on the outer side of the power taking sleeve.

[0013] The above-mentioned screwing clamp comprises a threaded hole sleeve arranged on the upper surface of the power taking sleeve, a clamping screw is threadedly connected with the threaded hole sleeve, the lower end of the clamping screw is rotationally connected with a clamping plate, and one side of the clamping plate is matched with the upper arc surface of the compression conductor.

[0014] The high-strength damage-resistant cable structure for the photovoltaic field provided by the utility model buffers and releases force of the impact on the cable from the outside by the elastic structure, and protects the wire core by using the multiple structures to resist the impact from the harsh environment. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model will be further described in connection with the drawings and embodiments:

[0016] Figure 1 It is the cable structure schematic diagram of the utility model;

[0017] Figure 2 It is the structure schematic diagram of the compression core;

[0018] Figure 3 It is the insulation outer compression sleeve structure schematic diagram;

[0019] Figure 4 It is the compression conductor and power taking clamp connection schematic Figure 1 ;

[0020] Figure 5 It is the compression conductor and power taking clamp connection schematic Figure 2 .

[0021] In the diagram: 1. Pressure-resistant core, 101. Arc-shaped concave pressure-resistant plate, 2. Pressure-resistant filler, 3. Stranded cable, 4. Stranded wire core, 5. Inner insulating sleeve, 6. Insulating outer pressure-resistant sleeve, 601. Arc-shaped convex pressure-resistant plate, 602. Elastic pressure-bearing concave surface, 7. Pressure-resistant conductor, 8. Wear-resistant rubber layer, 9. Power-taking clamp, 91. Power-taking sleeve, 92. Screw hole sleeve, 93. Clamping plate, 94. Clamping screw, 95. Power-taking terminal. Detailed Implementation

[0022] Example 1:

[0023] like Figures 1-5 As shown, a high-strength, damage-resistant cable structure for use in the photovoltaic field is characterized by comprising a pressure-resistant core 1, a stranded cable 3, an insulating outer pressure-resistant sleeve 6, a pressure-resistant conductor 7, and an abrasion-resistant rubber layer 8 arranged sequentially from the inside out. The stranded cable 3 is bonded to the outer surface of the pressure-resistant core 1, the pressure-resistant conductor 7 is bonded to the outer surface of the insulating outer pressure-resistant sleeve 6, an insulating layer is filled between the pressure-resistant core 1 and the insulating outer pressure-resistant sleeve 6 to wrap the stranded cable 3, and an insulating layer is filled between the pressure-resistant conductor 7 and the abrasion-resistant rubber layer 8 to wrap the pressure-resistant conductor 7.

[0024] The external pressure is buffered by the elastic deformation of the insulating outer pressure-resistant sleeve 6 to prevent damage to the pressure-resistant conductor 7. The inner layer prevents external force from damaging the stranded cable 3 through the elastic deformation of the pressure-resistant core 1. This high-pressure-resistant cable structure is suitable for situations where the cable needs to be subjected to external impact for a long time but it is inconvenient to install cable supports. The cable can be buried directly underground, and the cable can be laid in a straight line or with slight bends.

[0025] The aforementioned pressure-resistant core 1 is filled with a buffer insulation layer.

[0026] The aforementioned pressure-resistant core 1 is formed by the intersection of multiple arc-shaped concave pressure-resistant plates 101, and the outer surface of the concave arc plate of the arc-shaped concave pressure-resistant plate 101 is in contact with the stranded cable 3.

[0027] The concave arc-shaped pressure-resistant plate 101 can be made of metal with low hardness and good ductility, or of insulating plastic material with good elasticity. It can be bent to a certain extent. The ductility of the metal or the elasticity of the plastic, as well as the internal buffer filler, provide a good buffering and stress relief effect for external extrusion or impact.

[0028] The aforementioned stranded cable 3 is composed of multiple stranded cores 4 twisted together and then wrapped with an inner insulating sleeve 5. Each stranded core 4 is made of multiple strands of conductive cores twisted together. The surface of the inner insulating sleeve 5 is in contact with the surface of the arc-shaped concave pressure-resistant plate 101.

[0029] The aforementioned insulating outer pressure-resistant sleeve 6 is formed by the intersection of multiple arc-shaped outwardly convex pressure-resistant plates 601. The joint of adjacent arc-shaped outwardly convex pressure-resistant plates 601 forms an elastic pressure-bearing concave surface 602, which is in contact with the pressure-resistant conductor 7.

[0030] The above-mentioned compression-resistant conductor 7 is powered by a power clip 9 at the end of the cable.

[0031] The above-mentioned power clip 9 comprises a power sleeve 91, which is tubular, and the lower surface of the power sleeve 91 is attached to the lower convex surface of the compression-resistant conductor 7, and the upper surface of the power sleeve 91 is spaced apart from the upper arc surface of the compression-resistant conductor 7, and the upper end surface of the power sleeve 91 is provided with a screw clamp for clamping the compression-resistant conductor 7, and the outer side of the power sleeve 91 is provided with a power terminal 95.

[0032] The above-mentioned screw clamp comprises a threaded hole sleeve 92 provided on the upper surface of the power sleeve 91, and a clamping screw 94 is threadedly connected with the threaded hole sleeve 92, and the lower end of the clamping screw 94 is rotatably connected with a clamping plate 93, and one side of the clamping plate 93 is matched with the upper arc surface of the compression-resistant conductor 7.

Claims

1. A high-strength, damage-resistant cable structure for use in the photovoltaic field, characterized in that, It consists of a pressure-resistant core (1), a stranded cable (3), an insulating outer pressure-resistant sleeve (6), a pressure-resistant conductor (7), and a wear-resistant rubber layer (8) arranged sequentially from the inside out. The stranded cable (3) is attached to the outer surface of the pressure-resistant core (1), the pressure-resistant conductor (7) is attached to the outer surface of the insulating outer pressure-resistant sleeve (6), and an insulating layer is filled between the pressure-resistant core (1) and the insulating outer pressure-resistant sleeve (6) to wrap the stranded cable (3). An insulating layer is filled between the pressure-resistant conductor (7) and the wear-resistant rubber layer (8) to wrap the pressure-resistant conductor (7).

2. The high-strength, damage-resistant cable structure for photovoltaic applications according to claim 1, characterized in that, The pressure-resistant core (1) is filled with a buffer insulation layer.

3. A high-strength, damage-resistant cable structure for photovoltaic applications according to claim 1, characterized in that, The pressure-resistant core (1) is formed by the intersection of multiple arc-shaped concave pressure-resistant plates (101), and the outer surface of the concave arc plate of the arc-shaped concave pressure-resistant plate (101) is in contact with the stranded cable (3).

4. A high-strength, damage-resistant cable structure for photovoltaic applications according to claim 3, characterized in that, The stranded cable (3) is composed of multiple stranded cores (4) twisted together and then wrapped with an inner insulating sleeve (5). Each stranded core (4) is made of multiple strands of conductive cores twisted together. The surface of the inner insulating sleeve (5) is in contact with the surface of the arc-shaped concave pressure-resistant plate (101).

5. A high-strength, damage-resistant cable structure for photovoltaic applications according to claim 1, characterized in that, The insulating outer pressure-resistant sleeve (6) is formed by the intersection of multiple arc-shaped outward convex pressure-resistant plates (601), and the joint of adjacent arc-shaped outward convex pressure-resistant plates (601) forms an elastic pressure-bearing concave surface (602) which is in contact with the pressure-resistant conductor (7).

6. A high-strength, damage-resistant cable structure for photovoltaic applications according to claim 5, characterized in that, The pressure-resistant conductor (7) is powered by a power-taking clamp (9) at the end of the cable.

7. A high-strength, damage-resistant cable structure for photovoltaic applications according to claim 6, characterized in that, The power-taking clip (9) includes a power-taking shell (91), which is tubular. The lower surface of the power-taking shell (91) is in contact with the lower convex surface of the pressure-resistant conductor (7). There is a gap between the upper surface of the power-taking shell (91) and the upper arc surface of the pressure-resistant conductor (7). A tightening clamp is provided on the upper end face of the power-taking shell (91) for clamping the pressure-resistant conductor (7). A power-taking terminal (95) is provided on the outside of the power-taking shell (91).

8. A high-strength, damage-resistant cable structure for use in the photovoltaic field according to claim 7, characterized in that, The tightening clamp includes a screw hole sleeve (92) on the upper surface of the power take-up housing (91), a clamping screw (94) is threadedly connected to the screw hole sleeve (92), the lower end of the clamping screw (94) is rotatably connected to the clamping plate (93), and one side of the clamping plate (93) matches the upper arc surface of the pressure-resistant conductor (7).

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