Voltage-resistant and ultraviolet-resistant photovoltaic threading pipe

Abstract

The utility model discloses a voltage-withstanding ultraviolet-resistant photovoltaic conduit, which comprises a conduit body for penetration of a photovoltaic cable, the conduit body comprises an inner liner tube and an outer sleeve, and the outer edge of the outer sleeve is coated with a surface coating layer for ultraviolet resistance. And a compression-resistant layer is arranged on the inner side of the surface coating layer of the outer sleeve. The pressure-resistant layer is made of polyolefin materials filled with calcium carbonate or superfine talcum powder and glass fibers, so that the pressure-resistant pipeline is high in strength and rigidity, low in weight and capable of effectively improving pressure resistance of the pipeline. The supporting strength of the pipeline is enhanced, the pipeline is prevented from deforming, loosening or losing stability, and therefore better pressure resistance is provided.

Description

Technical Field

[0001] The utility model relates to a pressure-resistant and ultraviolet-resistant photovoltaic threading tube. Background Art

[0002] Photovoltaic corrugated tubing is a type of protective conduit specifically designed for use in photovoltaic systems, often used to protect photovoltaic cables and lines. Its corrugated appearance and structure effectively protect the cables and lines in photovoltaic systems from damage caused by external environmental factors.

[0003] When used in photovoltaic systems, existing threaded pipes lack sufficient support, causing the pipes to easily deform, loosen, or become unstable. At the same time, photovoltaic systems are usually exposed to ultraviolet radiation, and long-term exposure may cause aging, deterioration, and performance degradation of the pipe material.

[0004] Therefore, a pressure-resistant and UV-resistant photovoltaic threading tube is proposed. Utility Model Content

[0005] The purpose of the present utility model is to provide a pressure-resistant and UV-resistant photovoltaic conduit to solve the problem of insufficient support strength proposed in the above-mentioned background technology, which causes the conduit to be easily deformed, loosened or unstable. At the same time, photovoltaic systems are usually exposed to ultraviolet radiation environments, and long-term exposure may cause aging, deterioration and performance degradation of the conduit material.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a pressure-resistant and UV-resistant photovoltaic threading tube, comprising a threading tube body for inserting photovoltaic cables, the threading tube body comprising an inner lining tube and an outer sleeve, the outer edge surface of the outer sleeve is coated with a surface coating layer for resisting ultraviolet rays, and the outer sleeve is provided with a pressure-resistant layer on the inner side of the surface coating layer.

[0007] Preferably, the surface coating layer is a polyolefin material or epoxy resin or fluorocarbon paint material filled with hindered phenol anti-aging agent, thioester anti-aging agent, ultraviolet absorber, and light stabilizer.

[0008] Preferably, the pressure-resistant layer is made of calcium carbonate or ultrafine talc powder or glass fiber-filled polyolefin material.

[0009] Preferably, a pressure relief cavity is provided between the inner lining tube and the outer sleeve, and the inner wall of the pressure relief cavity is provided with multiple groups of supporting protrusions.

[0010] Preferably, the cross-sectional shape of the supporting protrusion is trapezoidal, and multiple groups of the supporting protrusions are arranged in a ring shape in the pressure relief cavity.

[0011] Preferably, the area of the support protrusion that fits the outer sleeve side is smaller than the area that fits the inner lining side.

[0012] Preferably, the inner diameter of the inner liner tube matches the photovoltaic cable.

[0013] Preferably, the outer edge surface of the outer sleeve tube is provided with corrugations or threads.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] The present utility model adopts a compressive layer, which is a polyolefin material filled with calcium carbonate or ultrafine talcum powder and glass fiber. It has high strength and stiffness, and at the same time has a relatively low weight, which can effectively increase the compressive capacity of the pipeline; enhance the support strength of the pipeline, prevent the pipeline from deforming, loosening or losing stability, thereby providing better pressure resistance performance.

[0016] The outer edge surface of the outer sleeve tube is coated with a surface coating layer for resisting ultraviolet rays, which is a polyolefin material filled with hindered phenol antioxidants, thioester antioxidants, ultraviolet absorbers, light stabilizers or epoxy resin, fluorocarbon paint materials. This surface coating layer has good weather resistance and ultraviolet resistance, can form an effective surface coating layer, provide a barrier protection against ultraviolet rays, and can effectively prevent the aging, deterioration and performance decline of the threading pipe material caused by ultraviolet radiation, and extend the service life of the threading pipe.

[0017] By providing an inner liner tube and an outer sleeve tube, the structure of the threading pipe is more stable.

[0018] A pressure relief cavity is provided between the inner liner tube and the outer sleeve tube of the threading pipe body, and multiple groups of support protrusions are provided on its inner wall. Through the provided pressure relief cavity, its inner wall is sealed. When the threading pipe body is under pressure, the pressure relief cavity is squeezed by the outer sleeve tube, the air pressure in the pressure relief cavity increases, and then a corresponding air pressure is generated to achieve preliminary compression resistance; at the same time, the provided support protrusions are in the shape of a frustum of a pyramid, which can provide a buffering effect when under pressure, reduce the deformation and stress concentration of the pipeline under pressure changes, and improve the stability and durability of the threading pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0020] Figure 2 is a schematic diagram of the threaded outer sleeve tube structure of an embodiment of the present utility model;

[0021] Figure 3 is a schematic cross-sectional structure diagram of an embodiment of the present utility model;

[0022] Figure 4 is a schematic diagram of the support protrusion structure of an embodiment of the present utility model.

[0023] In the figure: 100, the conduit body; 100a, the inner lining tube; 100b, the outer sleeve tube; 200, the surface coating layer; 300, the compressive layer; 400, the pressure relief cavity; 500, the support protrusion. Detailed implementation mode

[0024] In order to facilitate the solution of the problems that the existing corrugated pipes have insufficient support strength, resulting in easy deformation, loosening or instability of the pipes, and at the same time, the photovoltaic system is usually exposed to an environment of ultraviolet radiation, and long-term exposure may cause aging, deterioration and performance decline of the conduit material, the embodiment of the present utility model provides a pressure-resistant and ultraviolet-resistant conduit for photovoltaic use. The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-4 , the present utility model provides a pressure-resistant and ultraviolet-resistant conduit for photovoltaic use, including a conduit body 100 for inserting photovoltaic cables. The conduit body 100 includes an inner lining tube 100a and an outer sleeve tube 100b. The outer edge surface of the outer sleeve tube 100b is provided with corrugations or threads. A surface coating layer 200 for resisting ultraviolet rays is coated on the outer edge surface of the outer sleeve tube 100b. The surface coating layer 200 is a polyolefin material or an epoxy resin or a fluorocarbon paint material filled with a hindered phenol antioxidant, a thioester antioxidant, an ultraviolet absorber, and a light stabilizer.

[0026] A compressive layer 300 is provided inside the outer sleeve tube 100b at the position of the surface coating layer 200. The compressive layer 300 is a polyolefin material filled with calcium carbonate or ultrafine talcum powder and glass fiber.

[0027] A pressure relief cavity 400 is provided between the inner lining tube 100a and the outer sleeve tube 100b. Multiple groups of support protrusions 500 are provided on the inner wall of the pressure relief cavity 400. The cross-sectional shape of the support protrusion 500 is trapezoidal, and multiple groups of the support protrusions 500 are arranged in a ring shape in the pressure relief cavity 400.

[0028] The area of the support protrusion 500 in contact with the outer sleeve tube 100b side is smaller than the area in contact with the inner lining tube 100a. The inner diameter of the inner lining tube 100a is matched with the photovoltaic cable.

[0029] The working principle of a pressure-resistant and ultraviolet-resistant wire pipe for photovoltaic use provided by the present utility model is as follows: A pressure-resistant layer 300 is adopted. The polyolefin material filled with calcium carbonate or ultrafine talcum powder and glass fiber has high strength and stiffness, and at the same time has a relatively low weight, which can effectively increase the pressure resistance of the pipeline; enhance the support strength of the pipeline, prevent the pipeline from deforming, loosening or becoming unstable, and thus provide better pressure resistance performance.

[0030] The outer edge surface of the outer sleeve pipe 100b is coated with a surface coating layer 200 for resisting ultraviolet rays, which is a polyolefin material filled with hindered phenol antioxidants, thioester antioxidants, ultraviolet absorbers, light stabilizers or epoxy resin, fluorocarbon paint materials. This surface coating layer 200 has good weather resistance and ultraviolet resistance, can form a firm surface coating layer 200, provide a barrier protection against ultraviolet rays, can effectively prevent the aging, deterioration and performance degradation of the wire pipe material caused by ultraviolet radiation, and extend the service life of the wire pipe.

[0031] By providing the inner sleeve pipe 100a and the outer sleeve pipe 100b, the structure of the wire pipe is more stable.

[0032] A pressure relief cavity 400 is provided between the inner sleeve pipe 100a and the outer sleeve pipe 100b of the wire pipe body 100, and multiple groups of support protrusions 500 are provided on its inner wall. Through the provided pressure relief cavity 400, the inner wall thereof is hermetically arranged. When the wire pipe body 100 is pressurized, the pressure relief cavity 400 is extruded by the outer sleeve pipe 100b, and the air pressure in the pressure relief cavity 400 increases, and then a corresponding air pressure is generated to achieve initial pressure resistance; at the same time, the provided support protrusions 500 are in the shape of a frustum of a pyramid, and can provide a buffering effect when pressurized, reduce the deformation and stress concentration of the pipeline under pressure changes, and improve the stability and durability of the wire pipe.

[0033] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A pressure-resistant and ultraviolet-resistant conduit for photovoltaic applications, characterized in that: It includes a pipe body (100) for the penetration of photovoltaic cables. The pipe body (100) includes an inner lining pipe (100a) and an outer sleeve pipe (100b). A surface coating layer (200) for resisting ultraviolet rays is coated on the outer edge surface of the outer sleeve pipe (100b), and a compressive layer (300) is provided inside the outer sleeve pipe (100b) at the surface coating layer (200).

2. A pressure-resistant and ultraviolet-resistant conduit for photovoltaic use according to claim 1, characterized in that: A pressure relief cavity (400) is provided between the inner lining pipe (100a) and the outer sleeve pipe (100b), and multiple groups of support protrusions (500) are provided on the inner wall of the pressure relief cavity (400).

3. A pressure-resistant and ultraviolet-resistant conduit for photovoltaic use according to claim 2, characterized in that: The cross-sectional shape of the support protrusion (500) is trapezoidal, and multiple groups of the support protrusions (500) are arranged in a ring shape in the pressure relief cavity (400).

4. A pressure-resistant and ultraviolet-resistant conduit for photovoltaic use according to claim 3, characterized in that: The area of the support protrusion (500) in contact with the outer sleeve pipe (100b) side is smaller than the area in contact with the inner lining pipe (100a).

5. The anti-pressure and ultraviolet-resistant conduit for photovoltaic use according to claim 1, characterized in that: The inner diameter of the inner lining pipe (100a) is matched with the photovoltaic cable.

6. The anti-pressure and anti-ultraviolet thread tube for photovoltaic use according to claim 1, wherein: The outer edge surface of the outer sleeve pipe (100b) is provided with corrugations or threads.

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