High-temperature-resistant double-layer co-extrusion insulation photovoltaic cable

Abstract

The high-temperature-resistant double-layer co-extrusion insulation photovoltaic cable comprises an outer insulation layer and an inner insulation layer, the outer insulation layer is sleeved on the outer wall of the inner insulation layer, the inner wall of the inner insulation layer is fixedly connected with a plurality of groups of partition plates, an installation sleeve is installed between every two of the plurality of groups of partition plates, heat conduction grooves are arranged in the partition plates, and the heat conduction grooves are communicated with the heat conduction grooves. And the plurality of groups of heat discharge pipes are respectively communicated with the interiors of the adjacent heat conduction grooves. According to the utility model, the plurality of groups of partition plates and the mounting sleeves are designed, and the electric wires are independently placed in the mounting sleeves, so that the effective isolation between the electric wires is ensured, and the direct contact between the electric wires is avoided. Heat generated by the electric wire in the electric energy transmission process can be rapidly conducted to the heat conduction grooves in the partition plate through the installation sleeve made of heat conduction plastic and then conducted to the external heat exhaust pipe through the heat conduction plate. The heat transfer and dissipation mechanism greatly improves the heat dissipation performance of the cable, reduces the risk of heat accumulation, and ensures the safety and stability of the cable in a high-load working state.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic cable technical field especially relates to a high temperature resistant double -layer co -extrusion insulation photovoltaic cable. BACKGROUND

[0002] With the rapid development of photovoltaic power generation this clean energy, the demand of photovoltaic cable is also in the rapid upward trend, and the cable is a kind of electric energy or signal transmission device, usually by several or several groups of wires, for transmitting power.

[0003] The utility model discloses a double -layer co -extrusion cable, the device is when using, co -extrusion wire is all set in the heat -insulating layer inside, there is certain defect in specific use, wire will occur certain heat when transmitting electric energy, the wire in the device and wire adhesion contact, heat will gather at the contact, and the heat dissipation effect is poor, leads to the temperature rise inside the cable, and the accumulation of this heat can reduce the insulation performance of wire, and even cause overheating or failure, therefore needs to be redesigned in this regard to the above problems a high temperature resistant double -layer co -extrusion insulation photovoltaic cable. UTILITY MODEL CONTENTS

[0004] The utility model discloses a high temperature resistant double -layer co -extrusion insulation photovoltaic cable to solve the shortcomings in the prior art.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme:

[0006] A kind of high temperature resistant double -layer co -extrusion insulation photovoltaic cable, including outer insulation layer and inner insulation layer, the outer insulation layer is sleeved in inner insulation layer outer wall, the inner insulation layer inner wall is fixedly connected with multiple groups of partition plates, multiple the partition plates between two installations are equipped with mounting sleeve, the partition plate is equipped with heat conduction groove, the mounting sleeve both sides outer wall is fixedly connected with connecting portion, the connecting portion penetrates partition plate outer wall and is connected with heat conduction plate, the outer insulation layer outer wall is fixedly connected with multiple groups of heat dissipation pipe, multiple The heat dissipation pipe is respectively communicated with the heat conduction groove inside adjacent to it.

[0007] Preferably, the mounting sleeve is made of heat-conducting plastic material, and the heat-conducting plate and the connecting portion are made of heat-conducting silica gel material.

[0008] Preferably, the outer insulation layer is made of flame-retardant silane cross-linked polyethylene material, and the inner insulation layer is made of silane cross-linked polyethylene material.

[0009] Preferably, multiple heat dissipation pipes are distributed at both ends of the outer insulation layer, and each heat dissipation pipe is fixedly connected with a filter plate.

[0010] Preferably, the plurality of mounting sleeves are annularly distributed inside the inner insulation layer.

[0011] The utility model has the advantages of the following:

[0012] 1. The utility model discloses a plurality of partition plates and mounting sleeves are designed, and the wires are placed in the mounting sleeves separately, which ensures the effective isolation between the wires and avoids the direct contact between the wires. The heat generated by the wires during the transmission of electric energy can be rapidly conducted to the heat conduction groove in the partition plate through the mounting sleeve made of heat-conducting plastic and then conducted to the external heat exhaust pipe through the heat-conducting plate. This heat transfer and dissipation mechanism greatly improves the heat dissipation performance of the cable, reduces the risk of heat accumulation and ensures the safety and stability of the cable under high load working conditions.

[0013] 2. The utility model discloses that the outer insulation layer and the inner insulation layer are respectively made of flame-retardant silane cross-linked polyethylene and silane cross-linked polyethylene material, which has good high-temperature resistance and flame retardance, ensuring the safe operation of the cable in high-temperature environments. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The utility model provides a kind of structure diagram of double-layer co-extrusion insulation photovoltaic cable of high temperature resistance.

[0015] Figure 2 For Figure 1 Structure diagram of partition plate, mounting sleeve and other components.

[0016] Figure 3 For Figure 2 Structure diagram.

[0017] Figure 4 For Figure 1 Sectional view of heat exhaust pipe.

[0018] In the drawing: 1, outer insulation layer; 2, inner insulation layer; 3, heat exhaust pipe; 4, partition plate; 5, mounting sleeve; 6, heat-conducting plate; 7, heat-conducting groove; 8, filter plate. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described 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.

[0020] Refer to Figures 1-4The utility model discloses a high temperature resistant double -layer co -extrusion insulation photovoltaic cable, including outer insulation layer 1 and inner insulation layer 2, outer insulation layer 1 is set in the inner wall of inner insulation layer 2, and the inner wall of inner insulation layer 2 is fixedly connected with multiple groups of partition plate 4, and the installation sleeve 5 is installed between two two multiple groups of partition plate 4, and the heat conduction groove 7 is seted up in partition plate 4, and the both sides outer wall of installation sleeve 5 is fixedly connected with the connecting portion, and the connecting portion passes through the outer wall of partition plate 4 and is connected with heat conduction plate 6, and the outer wall of outer insulation layer 1 is fixedly connected with multiple groups of heat removal pipe 3, and multiple groups of heat removal pipe 3 are communicated with the inside of its adjacent heat conduction groove 7 respectively,

[0021] Specific use, through the design of partition plate 4 and installation sleeve 5, avoid the heat accumulation between the wire, improve the heat dissipation performance, simultaneously, the design of heat conduction groove 7 and heat conduction plate 6 further enhances the heat dissipation effect inside the cable, reduces the risk of cable overheating.

[0022] Installation sleeve 5 is made of heat-conducting plastic material, heat conduction plate 6 and connecting part are made of heat-conducting silica gel material, outer insulation layer 1 is made of flame-retardant silane cross-linked polyethylene material, inner insulation layer 2 is made of silane cross-linked polyethylene material, multiple groups of heat removal pipe 3 are distributed at both ends of outer insulation layer 1, filter plate 8 is fixedly connected in heat removal pipe 3, and multiple groups of installation sleeve 5 are annularly distributed in the inside of inner insulation layer 2; The design of annular distribution makes the wire evenly distributed, further reduces the heat accumulation between the wire.

[0023] In the utility model, when used, a single wire is placed in the installation sleeve 5, the wires are isolated from each other by the design of the partition plate 4 and the installation sleeve 5, direct contact and heat accumulation between the wires are avoided, thereby improving the overall safety of the cable. The heat generated during the transmission of electric energy is first conducted to the heat conduction groove 7 in the partition plate 4 through the installation sleeve 5 made of heat-conducting plastic, then effectively conducted to the heat removal pipe 3 outside through the heat conduction plate 6, and finally dissipated to the external environment through the heat removal pipe 3. The design of the flame-retardant material of the outer insulation layer 1 ensures the safety of the cable in a high-temperature environment. Even if overheating occurs, the cable can effectively avoid self-ignition or fire accidents.

[0024] As the cable operates, the filter plate 8 of the heat removal pipe 3 continuously keeps the heat removal channel unobstructed, prevents external impurities from affecting the heat dissipation performance, and ensures that the cable maintains good heat dissipation status under long-time high load.

[0025] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered within the protection scope of the utility model.

Claims

1. A high temperature resistant double layer co-extruded insulated photovoltaic cable comprising an outer insulating layer (1) and an inner insulating layer (2), characterized in that, The outer insulation layer (1) is sleeved on the outer wall of the inner insulation layer (2), a plurality of partition plates (4) are fixedly connected to the inner wall of the inner insulation layer (2), a mounting sleeve (5) is mounted between every two of the plurality of partition plates (4), a heat conduction groove (7) is formed in the partition plate (4), a connecting portion is fixedly connected to the outer wall of the mounting sleeve (5), the connecting portion penetrates through the outer wall of the partition plate (4) and is connected with a heat conduction plate (6), a plurality of heat dissipation pipes (3) are fixedly connected to the outer wall of the outer insulation layer (1), and the plurality of heat dissipation pipes (3) are respectively communicated with the heat conduction grooves (7) adjacent thereto.

2. A high temperature resistant, double layer co-extruded insulated photovoltaic cable according to claim 1, characterized in that, The mounting sleeve (5) is made of heat-conducting plastic material, and the heat conduction plate (6) and the connecting portion are made of heat-conducting silica gel material.

3. A high temperature resistant, double layer co-extruded insulated photovoltaic cable according to claim 2, characterized in that, The outer insulation layer (1) is made of flame-retardant silane cross-linked polyethylene material, and the inner insulation layer (2) is made of silane cross-linked polyethylene material.

4. A high temperature resistant, double layer co-extruded insulated photovoltaic cable according to claim 3, characterized in that, The plurality of heat dissipation pipes (3) are distributed at two ends of the outer insulation layer (1), and a filter plate (8) is fixedly connected in each of the heat dissipation pipes (3).

5. A high temperature resistant, double layer co-extruded insulated photovoltaic cable according to claim 4, characterized in that, The plurality of mounting sleeves (5) are annularly distributed in the inner insulation layer (2).

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