Loss-prevention and compression-resistant new energy photovoltaic cable

Abstract

The utility model discloses an anti-damage compression-resistant new energy photovoltaic cable, which belongs to the technical field of cable preparation and comprises a lead, an insulating layer made of TPE (thermoplastic elastomer) materials is wrapped on the outer layer of the lead, a heat-resistant layer is wrapped on the outer side of the insulating layer, a compression-resistant layer is wrapped on the outer side of the heat-resistant layer, and a protective layer is wrapped on the outer side of the compression-resistant layer. According to the utility model, the wear resistance of the cable is enhanced through the wear-resistant layer made of polyvinyl chloride, the anti-pressure capability of the cable is improved through the cylindrical cavity of the anti-pressure layer, after the cable is extruded by an external force, the internal wires can be effectively protected from being damaged, and after the external force disappears, the internal wires can be prevented from being damaged. The outer wall of the cable is restored under the elastic force action of the cylindrical cavity and the thermal insulation layer, the heat resistance of the cable is enhanced through the heat-resistant layer, the probability of fire caused by cable load is reduced, and therefore the cable has good wear-resistant, compression-resistant and high-temperature-resistant effects.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable preparation technical field, concretely relates to a kind of anti-loss pressure-resistant new energy photovoltaic cable. BACKGROUND

[0002] Photovoltaic cable is a kind of cable used in solar photovoltaic power generation system, mainly used to connect solar cell panel, inverter and power grid and other equipment, realize the effective conversion and transmission of solar energy. Photovoltaic cable needs to have good weather resistance, high temperature resistance, corrosion resistance, especially direct current cable, needs to be moisture-proof, sun-proof, cold-resistant, heat-resistant, anti-ultraviolet, and also needs to be acid and alkali resistant in some special environments. In addition, photovoltaic cable also needs to have high electrical performance, such as low resistance, high insulation resistance and voltage resistance, to ensure the transmission efficiency and safety of electric energy.

[0003] Photovoltaic cable is widely used in residential roof photovoltaic power generation system, commercial and industrial fields, public facilities and remote areas. In residential roof photovoltaic power generation system, photovoltaic cable is responsible for transmitting the electric energy generated by photovoltaic module to inverter and other related equipment, reducing the dependence on traditional power and saving electricity bill for family. In commercial and industrial fields, photovoltaic cable meets the needs of large-scale photovoltaic power generation system, providing stable and reliable power supply for these places.

[0004] The existing photovoltaic cable has insufficient pressure resistance, which causes internal wire damage after cable is moved or extruded, but the damage degree cannot be determined by naked eye from the outside of the cable. After being applied to photovoltaic equipment, it can also operate normally, but it causes certain safety hazards for subsequent operation, and causes safety accidents in overload or high temperature environment, so a kind of anti-loss pressure-resistant new energy photovoltaic cable is needed. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the utility model provides a kind of anti-loss pressure-resistant new energy photovoltaic cable.

[0006] The technical scheme of the utility model is: a kind of anti-loss pressure-resistant new energy photovoltaic cable, including wire, the outer layer of the wire is wrapped with the insulation layer made of TPE material, the outer side of the insulation layer is wrapped with heat-resistant layer, the outer side of the heat-resistant layer is wrapped with pressure-resistant layer, the outer side of the pressure-resistant layer is wrapped with wear-resistant layer made of polyvinyl chloride.

[0007] Further, the pressure-resistant layer includes a support pipe body made of PVC material, a plurality of cylindrical cavities parallel to the central axis of the wire are arranged on the circumference of the support pipe body, and a plurality of partition walls are arranged in the cylindrical cavities along the axial direction.

[0008] Description: After the cable is extruded by external force, the cylindrical cavity is deformed, but it will not further extrude the heat-resistant layer, thus enhancing the compression resistance of the cable.

[0009] Further, the heat-resistant layer comprises an aluminum oxide film, the outer side of the aluminum oxide film is wrapped with a flame-retardant film made of halogen-free flame-retardant PC material, and the outer side of the flame-retardant film is wrapped with a high-temperature-resistant tube body made of polytetrafluoroethylene.

[0010] Description: After the circuit load is high temperature, the aluminum oxide film has high-temperature resistance effect, the flame-retardant film prevents the circuit from catching fire, and the high-temperature-resistant tube body supports and protects the aluminum oxide film and the flame-retardant film.

[0011] Further, the heat-resistant layer and the compression-resistant layer are provided with a temperature-insulating layer made of high-temperature-resistant sponge.

[0012] Description: The fiber line in the high-temperature-resistant tube body can enhance the tensile resistance of the cable.

[0013] Further, the heat-resistant layer and the compression-resistant layer are provided with a temperature-insulating layer made of high-temperature-resistant sponge.

[0014] Description: The high-temperature-resistant sponge can not only reduce the heat transfer of external high temperature to the internal high-temperature-resistant layer, but also improve the compression resistance and recovery ability of the cable.

[0015] The beneficial effects of the utility model are:

[0016] The utility model discloses a wear -resisting layer made of polyvinyl chloride enhances the wear resistance of cable, improves the compression resistance of cable through the cylindrical cavity of compression -resistant layer, can effectively protect internal wire after cable is extruded by external force, under the elastic force of cylindrical cavity and temperature -insulating layer, the cable outer wall restores original shape after external force disappears, enhances the heat resistance of cable through heat -resistant layer, reduces the probability of fire caused by cable load, therefore, the utility model has good wear -resisting, compression -resisting, high -temperature -resisting effect. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the radial section structure schematic diagram of the utility model.

[0018] Figure 2 It is the axial structure schematic diagram of the compression -resistant layer of the utility model.

[0019] Among them, 1 - wire, 2 - insulating layer, 3 - heat -resistant layer, 4 - compression -resistant layer, 5 - wear -resisting layer, 41 - support tube body, 42 - cylindrical cavity, 43 - partition wall, 31 - aluminum oxide film, 32 - flame -retardant film, 33 - high-temperature-resistant tube body, 34 - fiber line, 6 - temperature -insulating layer. SPECIFIC EMBODIMENT

[0020] Example 1:

[0021] As shown in Figure 1 A new energy photovoltaic cable with loss prevention and pressure resistance, comprising a wire 1, an insulating layer 2 made of TPE material wrapped outside the wire 1, a heat-resistant layer 3 wrapped outside the insulating layer 2, a pressure-resistant layer 4 wrapped outside the heat-resistant layer 3, and a wear-resistant layer 5 made of polyvinyl chloride wrapped outside the pressure-resistant layer 4.

[0022] The heat-resistant layer 3 comprises an aluminum oxide film 31, an ignition-resistant film 32 made of halogen-free ignition-resistant PC material wrapped outside the aluminum oxide film 31, and a high-temperature-resistant tube body 33 made of polytetrafluoroethylene wrapped outside the ignition-resistant film 32.

[0023] After the circuit load is heated, the aluminum oxide film 31 has a high-temperature-resistant effect, the ignition-resistant film 32 prevents the circuit from catching fire, and the high-temperature-resistant tube body 33 supports and protects the aluminum oxide film 31 and the ignition-resistant film 32.

[0024] Example 2:

[0025] The difference between this embodiment and Example 1 is that, as shown in Figure 2 The pressure-resistant layer 4 comprises a support tube body 41 made of PVC material, a plurality of cylindrical cavities 42 parallel to the central axis of the wire 1 are arranged along the circumference of the support tube body 41, and a plurality of partition walls 43 are arranged along the axial direction of the cylindrical cavities 42. The materials of the support tube body 41 and the partition walls 43 are the same as that of the support tube body 41.

[0026] Compared with Example 1, in this embodiment, the cylindrical cavities 42 deform after the cable is extruded by external force, but do not cause further extrusion to the heat-resistant layer 3, thereby enhancing the pressure resistance of the cable.

[0027] Example 3:

[0028] The difference between this embodiment and Example 2 is that, in this embodiment, a plurality of fiber lines 34 parallel to the central axis of the wire 1 are arranged along the circumference of the high-temperature-resistant tube body 33.

[0029] Compared with Example 2, in this embodiment, the fiber lines 34 in the high-temperature-resistant tube body 33 can enhance the tensile strength of the cable.

[0030] Example 4:

[0031] The difference between this embodiment and Example 3 is that, in this embodiment, a temperature-insulating layer 6 made of high-temperature-resistant sponge is arranged between the heat-resistant layer 3 and the pressure-resistant layer 4.

[0032] Compared with Example 3, in this embodiment, the high-temperature-resistant sponge can not only reduce the heat transfer from the outside high temperature to the internal high-temperature-resistant layer 33, but also improve the pressure resistance and recovery ability of the cable.

[0033] The working principle of the embodiment 4 is as follows:

[0034] The insulation layer 2 provides a good insulation effect for the wire, the aluminum oxide film 31 has a high heat resistance effect, the flame-retardant film 32 will not burn after being heated, thereby playing a flame-retardant effect, the high-temperature-resistant tube body 33 can play a role in protecting the flame-retardant film 32, the fiber wire 34 enhances the tensile strength of the cable, and the cylindrical cavity 42 in the supporting tube body 41 produces deformation, but will not further extrude the heat-resistant layer 3, so that the compression resistance of the cable is enhanced, and the temperature insulation layer 6 can not only reduce the heat transfer of the external high temperature to the internal high-temperature-resistant layer 33, but also improve the compression resistance and recovery ability of the cable.

[0035] It should be noted that the various materials used in the utility model, such as TPE material, polyvinyl chloride, PVC material, the material of the aluminum oxide film 31, halogen-free flame-retardant PC material, polytetrafluoroethylene, the material of the fiber wire 34, high-temperature-resistant sponge and the like, are all materials of the prior art, and a person skilled in the art can select and use them according to the needs, and no special limitation is made herein.

Claims

1. A new energy photovoltaic cable with anti-damage and pressure resistance, characterized in that, The utility model relates to a kind of wire, including wire (1), the outer layer of wire (1) is wrapped with the insulating layer (2) made of TPE material, the outer side of insulating layer (2) is wrapped with heat-resistant layer (3), the outer side of heat-resistant layer (3) is wrapped with pressure-resistant layer (4), the outer side of pressure-resistant layer (4) is wrapped with wear-resistant layer (5) made of polyvinyl chloride.

2. A kind to be prevented as claimed in claim 1 loss pressure type new energy photovoltaic cable, with, The pressure-resistant layer (4) includes a support tube (41) made of PVC material, the inside of the support tube (41) is provided with a plurality of cylindrical cavities (42) parallel to the central axis of the wire (1) along its circumference, and a plurality of partition walls (43) are arranged in the cylindrical cavities (42) along their axial direction.

3. The anti-damage and pressure-resistant new energy photovoltaic cable according to claim 1, characterized in that, The heat-resistant layer (3) includes an aluminum oxide film (31), the outer side of the aluminum oxide film (31) is wrapped with a flame-retardant film (32) made of halogen-free flame-retardant PC material, and the outer side of the flame-retardant film (32) is wrapped with a high-temperature resistant tube (33) made of polytetrafluoroethylene.

4. The anti-damage and pressure-resistant new energy photovoltaic cable of claim 3, wherein, The high-temperature resistant tube (33) is provided with a plurality of fiber lines (34) parallel to the central axis of the wire (1) along its circumference.

5. The anti-damage and pressure-resistant new energy photovoltaic cable according to claim 1, characterized in that, A temperature insulation layer (6) made of high-temperature resistant sponge is arranged between the heat-resistant layer (3) and the pressure-resistant layer (4).

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