Photovoltaic multilayer protection sealing cable

Abstract

The utility model discloses a photovoltaic multilayer protection sealing cable, which comprises a cable sling main body and a steel strand arranged in the cable sling main body, the cable sling main body comprises a sealing sliding layer and a wear-resistant layer, and a corrosion-resistant layer is attached to the surface of the steel strand. Through the epoxy resin material of the corrosion-resistant layer, the sealing cable has a good corrosion-resistant effect, and the corrosion resistance of the sealing cable can be well improved, so that the firmness effect of the sealing cable can be better improved. Meanwhile, grease and a wear-resistant layer are additionally arranged on the outer layer of the corrosion-resistant layer, the photovoltaic panel moves under the action of wind power, the wear-resistant layer can move along with the photovoltaic panel under the action of the grease, the internal steel strands are in a static state, and the photovoltaic panel cannot be cracked due to extrusion of the steel strands.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic, in particular to a multi-layer protection sealing cable for photovoltaic use. Background Art

[0002] At present, as a clean energy, photovoltaic power generation is highly regarded globally and has received strong support and development. In recent years, solar flexible photovoltaic system power generation projects have received more and more attention. The flexible system has its unique technical characteristics, so it has broad prospects and competitiveness in the industry.

[0003] In the existing flexible support system, a sealing cable is used to support the photovoltaic panel. The commonly used structures are single-layer double-cable structure and double-layer triple-cable structure. Due to the structural characteristics of the flexible system, it is extremely important to determine whether its wind resistance meets the requirements.

[0004] However, during the use of the photovoltaic sealing cable, when the external wind force is large, the photovoltaic panel will shake on the sealing cable, resulting in friction between the mounting frame on the photovoltaic panel and the sealing cable, reducing the firmness effect of the sealing cable. And due to being exposed to wind, rain and other external factors, the sealing cable is corroded and its firmness is reduced. Therefore, a multi-layer protection sealing cable for photovoltaic use is proposed. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a multi-layer protection sealing cable for photovoltaic use, which solves the problems that the mounting frame on the photovoltaic panel will rub against the steel strand, reducing the firmness effect of the steel strand and being corroded by wind and rain, resulting in reduced firmness of the steel strand.

[0006] To achieve the above purposes, the utility model is realized through the following technical solutions: It consists of a cable sleeve main body and a steel strand arranged inside the cable sleeve main body. The cable sleeve main body includes a tight-sealing sliding layer and a wear-resistant layer. The surface of the steel strand is attached with a corrosion-resistant layer, and the material of the corrosion-resistant layer is epoxy resin.

[0007] Preferably, the steel strand is twisted into a plum blossom shape. There is a PE plum blossom-shaped protective layer arranged outside the gap of the steel strand, and the material of the PE plum blossom-shaped protective layer is HDPE anti-ultraviolet modified plastic.

[0008] Preferably, a sealing sliding layer is arranged between the PE plum blossom-shaped protective layer and the wear-resistant layer, and the material is grease or microcrystalline wax.

[0009] Preferably, the material of the wear-resistant layer is HDPE anti-ultraviolet modified plastic.

[0010] Advantageous Effects

[0011] The present utility model provides a multi-layer protection and sealing cable for photovoltaic applications. Compared with the existing technologies, it has the following beneficial effects:

[0012] (1) The utility model has a good corrosion resistance effect through the epoxy resin material of the corrosion-resistant layer, which can effectively improve the corrosion resistance of the sealing cable, and thus better improve the firmness effect of the sealing cable.

[0013] (2) The utility model improves the sealing effect of the sealing cable through the microcrystalline wax or grease of the sealing sliding layer, effectively preventing moisture damage inside the cable sleeve body, and improving the service life of the sealing cable.

[0014] (3) In the prior art, the photovoltaic panel installed above the steel strand generates displacement due to wind force. The photovoltaic panel drives the steel strand to move. Since the internal and external protective sleeves of the steel strand move synchronously due to the friction force after being stressed, extrusion will occur, resulting in uneven stress on the photovoltaic panel and causing cracking. After improvement, in the present patent, grease and a wear-resistant layer are added to the outer layer of the PE plum blossom-shaped protective layer. When the photovoltaic panel is displaced under the action of wind force, the wear-resistant layer can move together with the photovoltaic panel under the action of the grease, and the internal steel strand remains stationary, so that the photovoltaic panel will not crack due to the extrusion of the steel strand. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the external structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the internal structure of the steel strand, corrosion-resistant layer, PE plum blossom-shaped protective layer, sealing sliding layer and wear-resistant layer of the present utility model;

[0017] Figure 3 is a schematic diagram of the structure of the steel strand and the corrosion-resistant layer of the present utility model.

[0018] In the figure: 1, cable sleeve body; 2, steel strand; 3, PE plum blossom-shaped protective layer; 12, corrosion-resistant layer; 13, sealing sliding layer; 14, wear-resistant layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0020] Please refer to Figures 1 - 3 , the present utility model provides a technical solution: a multi-layer protection and sealing cable for photovoltaic applications, which includes a cable sleeve body 1 and a steel strand 2 arranged inside the cable sleeve body 1, wherein the cable sleeve body 1 includes a sealing layer 13 and a wear-resistant layer 14.

[0021] The steel strand 2 can be a prestressed hot-dip galvanized steel strand or an epoxy-coated prestressed strand. The multi-strand steel strand 2 is twisted into a plum blossom shape, and a corrosion-resistant layer 12 is attached to the surface of the steel strand 2. The material of the corrosion-resistant layer 12 is epoxy resin, so it has a good corrosion-resistant effect, which can well improve the corrosion resistance of the sealed cable, and thus can better improve the firmness effect of the sealed cable.

[0022] Furthermore, in order to improve the sealing effect of the sealed cable, the sealing sliding layer 13 is microcrystalline wax or anti-corrosion grease, which improves the sealing effect of the sealed cable, effectively prevents moisture damage inside the cable sleeve body, and improves the service life of the sealed cable.

[0023] Furthermore, in order to prevent the steel strand 2 from shaking inside the sealed cable, a PE plum blossom-shaped protective layer 3 is provided between the steel strands 2 and on the outside. The material of the PE plum blossom-shaped protective layer 3 is HDPE anti-ultraviolet modified plastic. HDPE anti-ultraviolet modified plastic can resist the erosion of most acids and alkalis, has little water absorption, can still maintain flexibility at low temperatures, and has high electrical insulation.

[0024] During use, the photovoltaic power generation panel is installed on the cable sleeve body 1. When the photovoltaic panel is affected by wind force and moves, the wear-resistant layer can move along with the photovoltaic panel under the action of grease. The internal steel strand is in a static state, and the photovoltaic panel will not crack due to the extrusion of the steel strand. The wear-resistant layer 14 has a good wear-resistant effect, enabling the cable sleeve body 1 to effectively support the photovoltaic power generation panel. The corrosion-resistant layer 12 has a good corrosion-resistant effect, effectively preventing the steel strand 2 inside the cable sleeve body 1 from being corroded and damaged, and through the microcrystalline wax or anti-corrosion grease of the sealing sliding layer 13, it can effectively seal and protect the inside of the cable sleeve body 1.

Claims

1. A multi-layer protection and sealing cable for photovoltaic use, which is composed of a cable sleeve main body (1) and a steel strand (2) arranged inside the cable sleeve main body (1), and is characterized in that: The cable sleeve body (1) includes a sealing and sliding layer (13) and a wear-resistant layer (14), and a corrosion-resistant layer (12) is attached to the surface of the steel strand (2). The material of the corrosion-resistant layer (12) is epoxy resin.

2. The multi-layer protection sealing cable for photovoltaic use according to claim 1, characterized in that: The steel strand (2) is twisted into a plum blossom shape, and a PE plum blossom-shaped protective layer (3) is arranged outside the gaps of the steel strand (2). The material of the PE plum blossom-shaped protective layer (3) is HDPE anti-ultraviolet modified plastic.

3. The multi-layer protection sealing cable for photovoltaic use according to claim 2, wherein: A sealing and sliding layer (13) is arranged between the PE plum blossom-shaped protective layer (3) and the wear-resistant layer (14), and the material is grease or microcrystalline wax.

4. The multi-layer protection sealing cable for photovoltaic use according to claim 3, characterized in that: The material of the wear-resistant layer (14) is HDPE anti-ultraviolet modified plastic.

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