High-temperature-resistant anti-cracking power cable

Abstract

The utility model relates to the technical field of power cables, in particular to a high-temperature-resistant anti-cracking power cable. A high-temperature-resistant anti-cracking power cable comprises a fixing frame, a plurality of mounting grooves are formed in the outer wall of the fixing frame, wire cores are arranged in the mounting grooves, the outer side of the fixing frame is wrapped with an insulating layer, the outer side of the insulating layer is wrapped with a heat conduction layer, and the outer side of the heat conduction layer is wrapped with an inner protection sleeve. The outer side of the inner protective sleeve is wrapped with a steel wire mesh layer, and the outer side of the steel wire mesh layer is wrapped with an outer protective sleeve. According to the utility model, the whole cable can be reinforced through the fixed frame and the steel wire mesh layer, the anti-fracture performance of the cable is improved, and the filling material arranged around the wire cores is the high-temperature-resistant glass yarn filling material, so that the high-temperature-resistant and heat-insulating effects are achieved, and the service life of the cable is prolonged. And the cable can maintain sufficient cable signal and electric energy transmission performance in a high-temperature environment.

Description

Technical Field

[0001] The utility model relates to the technical field of power cables, in particular to a high temperature resistant and crack resistant power cable. Background Art

[0002] With the development of science and technology, the fields of industry are also progressing rapidly, which has led to an increase in the use of cables. Cables are usually a rope-like cable with several or several groups of wires, each group of at least two wires twisted together. Each group of wires is insulated from each other and often twisted around a center, with a highly insulating covering on the outside. There are many types of cables, which can be used in many fields, and the use environment in different fields is different, so there are different requirements for cables.

[0003] In a high temperature environment, the heat generated by the cable itself will affect the cable signal or power transmission performance, shortening the service life of the cable. Moreover, when the cable works in a high temperature environment for a long time, cracks are prone to occur, especially in the bending parts of the cable, which will eventually cause the cable to break. Utility Model Content

[0004] The utility model aims to provide a high temperature resistant and crack resistant power cable, so as to solve the problem that high temperature will affect the transmission performance of the cable and the cable is prone to breakage.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A high-temperature resistant and crack-proof power cable comprises a fixing frame, a plurality of installation grooves are opened on the outer wall of the fixing frame, a wire core is arranged in the installation groove, an insulating layer is wrapped on the outer side of the fixing frame, a heat-conducting layer is wrapped on the outer side of the insulating layer, an inner protective sleeve is wrapped on the outer side of the heat-conducting layer, a steel mesh layer is wrapped on the outer side of the inner protective sleeve, and an outer protective sleeve is wrapped on the outer side of the steel mesh layer.

[0007] A further technical solution is that a filling material is provided between the fixing frame and the wire core in the insulating layer.

[0008] A further technical solution is that the filling material is a high temperature resistant glass yarn filler.

[0009] A further technical solution is that the wire core is made of tinned copper material.

[0010] A further technical solution is to provide a waterproof coating layer on the outer wall of the outer protective sleeve.

[0011] A further technical solution is to evenly arrange a plurality of fixing rings on the outside of the steel mesh layer.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] In the utility model, the fixing frame and the wire mesh layer are arranged to reinforce the cable as a whole, thereby improving the cable's anti-fracture performance. The filling material arranged around the core is a high-temperature resistant glass yarn filler, which plays a role of high-temperature resistance and heat insulation, so that the cable can maintain sufficient cable signal and power transmission performance in a high-temperature environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the steel wire mesh layer in the utility model.

[0017] Icon: 100-cable body, 1-wire core, 2-fixing frame, 3-filling material, 4-insulating layer, 5-thermal conductive layer, 6-inner protective sheath, 7-wire mesh layer, 8-outer protective sheath, 9-fixing ring, 10-cable body. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] Figures 1 to 3 This is an embodiment of the utility model.

[0020] Example 1

[0021] A high temperature resistant and crack resistant power cable comprises a fixing frame 2, a plurality of mounting grooves 3 are provided on the outer wall of the fixing frame 2, a wire core 1 is provided in the mounting groove 3, an insulating layer 4 is wrapped on the outer side of the fixing frame 2, a heat conducting layer 5 is wrapped on the outer side of the insulating layer 4, an inner protective sleeve 6 is wrapped on the outer side of the heat conducting layer 5, a steel mesh layer 7 is wrapped on the outer side of the inner protective sleeve 6, and an outer protective sleeve 8 is wrapped on the outer side of the steel mesh layer 7. The cable can work normally in an external high temperature environment, and the high temperature generated by the cable itself will not affect its own cable signal or power transmission performance, and the cable will not break due to material changes caused by high temperature.

[0022] Example 2

[0023] On the basis of Example 1, a filling material 10 is provided between the fixing frame 2 and the wire core 1 in the insulating layer 4. After the filling material 10 is provided in the gap inside the fixing frame 2, it plays a role of supporting and preventing the wire core 1 from shaking inside the fixing frame 2, and the shape of the cable body 100 will be more rounded.

[0024] Example 3

[0025] Based on Example 2, the filling material 10 is a high temperature resistant glass yarn filler. The high temperature resistant glass yarn filler is used for filling to improve the high temperature resistance of the cable body 100 and prevent the cable from being damaged due to high temperature during operation.

[0026] Example 4

[0027] On the basis of Example 3, the wire core 1 is made of tinned copper material. The wire core 1 made of tinned copper material can improve the electrical conductivity of the cable and accelerate the transmission rate.

[0028] Example 5

[0029] On the basis of Embodiment 4, a waterproof coating layer is provided on the outer wall of the outer protective sheath 8, so as to improve the waterproof property of the cable and prevent liquid from penetrating into the interior of the cable body 100 and affecting the service life.

[0030] Example 6

[0031] On the basis of Example 5, a plurality of fixing rings 9 are evenly arranged outside the steel mesh layer 7. The toughness of the steel mesh layer 7 can be enhanced and the fracture resistance can be improved.

[0032] Working principle: When in use, the outer protective sleeve 8 plays a role in wear resistance. A waterproof coating layer is arranged on the outer protective sleeve 8 to prevent external liquids and rainwater from penetrating into the interior of the cable body. The wire mesh layer 7 and the fixing ring 9 can improve the cable's anti-fracture performance. The inner protective sleeve 6 is used to protect and isolate the interior. The thermal conductive layer 5 can have a good heat dissipation effect. The insulating layer 4 ensures that the transmitted current will not leak when the cable is working. The set fixing frame 2 not only has good anti-fracture performance, but also facilitates the installation of the core 1 during cable production. The use of high-temperature resistant glass yarn filler to fill the gap inside the fixing frame 2 can prevent the high temperature generated when the core 1 is energized from damaging the inside of the cable.

[0033] Although the utility model is described herein with reference to a plurality of illustrative embodiments of the utility model, it should be understood that those skilled in the art may devise many other modifications and implementations that fall within the scope and spirit of the principles disclosed herein. More specifically, within the scope of the drawings and claims disclosed herein, various modifications and improvements may be made to the components and / or layout of the subject combination layout. In addition to the modifications and improvements made to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. A high temperature resistant and crack resistant power cable, characterized in that: The invention comprises a fixing frame (2), a plurality of mounting grooves (3) are formed on the outer wall of the fixing frame (2), a wire core (1) is arranged in the mounting groove (3), an insulating layer (4) is wrapped on the outer side of the fixing frame (2), a heat conducting layer (5) is wrapped on the outer side of the insulating layer (4), an inner protective sleeve (6) is wrapped on the outer side of the heat conducting layer (5), a steel wire mesh layer (7) is wrapped on the outer side of the inner protective sleeve (6), and an outer protective sleeve (8) is wrapped on the outer side of the steel wire mesh layer (7).

2. A high temperature resistant and crack resistant power cable according to claim 1, characterized in that: A filling material (10) is provided between the fixing frame (2) and the wire core (1) in the insulating layer (4).

3. A high temperature resistant and crack resistant power cable according to claim 2, characterized in that: The filling material (10) is a high temperature resistant glass yarn filler.

4. A high temperature resistant and crack resistant power cable according to claim 1, characterized in that: The wire core (1) is made of tinned copper material.

5. A high temperature resistant and crack resistant power cable according to claim 1, characterized in that: A waterproof coating layer is provided on the outer wall of the outer protective sleeve (8).

6. A high temperature resistant and crack resistant power cable according to claim 1, characterized in that: A plurality of fixing rings (9) are evenly arranged outside the steel wire mesh layer (7).

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