CN219457191U

CN219457191U - Control cable with double-layer shielding structure

Info

Publication number: CN219457191U
Application number: CN202320623077.9U
Authority: CN
Inventors: 潘泽国; 张志敏; 余琳玲; 何云平; 钟广尧; 林建清; 赵寻; 黄焕新
Original assignee: Guangdong New Yaguang Cable Co ltd
Current assignee: Guangdong New Yaguang Cable Co ltd
Priority date: 2023-03-27
Filing date: 2023-03-27
Publication date: 2023-08-01
Anticipated expiration: 2033-03-27

Abstract

The utility model relates to the technical field of cables and discloses a control cable with a double-layer shielding structure, which comprises a wear-resistant layer, wherein a fireproof layer is compounded in the wear-resistant layer, a toughness reinforcing layer is compounded in the fireproof layer, and a first shielding layer is compounded in the toughness reinforcing layer; according to the utility model, through the design of the wear-resistant layer and the toughness reinforcing layer, the wear-resistant layer and the toughness reinforcing layer are respectively made of nitrile rubber and fluorosilicone rubber, so that the surface of the cable has extremely high wear resistance, the damage of an internal fireproof layer caused by external scraping is prevented, the fireproof performance of the fireproof layer is ensured, the durability is improved, and when the cable encounters a fire condition, the cable can be isolated from external high temperature by designing the heat insulating layer and the heat insulating filler on the cable, the external high temperature is prevented from penetrating into the cable, the insulating layer on the surface of the cable core inside the cable is influenced by high temperature, the insulativity of the cable is ensured, and the use safety of the cable is improved.

Description

Control cable with double-layer shielding structure

Technical Field

The utility model relates to the technical field of cables, in particular to a control cable with a double-layer shielding structure.

Background

The control cable is a polyvinyl chloride insulated and polyvinyl chloride sheath control cable suitable for industrial and mining enterprises, energy transportation departments, occasions such as control and protection circuits with the alternating current rated voltage below 450/750V, the double-layer composite shielding control cable generally adopts good electric conductors as shielding materials, has better protection effect on low-frequency and high-frequency strong electromagnetic field interference areas, and can not be influenced by external fire conditions when in use, and the fire-resistant double-layer composite shielding control cable appears, so that the fire resistance is enhanced when the control cable is in normal use, but the fire-resistant structure of the traditional fire-resistant double-layer composite shielding control cable is generally sprayed with fire-resistant paint on the surface when in use, so that the loss of the surface paint is caused, the fire resistance is reduced, the good fire resistance effect can not be achieved when the fire occurs, and the traditional fire-resistant double-layer composite shielding control cable lacks the temperature insulation structure, although the fire-resistant double-layer composite shielding control cable can not be influenced by external fire conditions, the fire resistance layer on the surface of the cable can be transmitted to the inside of the cable when the fire occurs, so that the insulation cable is easily influenced by the insulation skin, and the insulation performance of the cable is easily influenced when the insulation skin is affected.

Disclosure of Invention

The utility model aims to provide a control cable with a double-layer shielding structure, which has the advantages of good protection effect and high heat insulation effect, and solves the problems that when the traditional fire-resistant double-layer composite shielding control cable is produced, the fire-resistant structure is generally formed by spraying fire-resistant paint on the surface, the surface paint is easily scratched and rubbed during use, the fire-resistant property of the control cable is reduced, when a fire occurs, a good fire-resistant effect cannot be achieved, and the traditional fire-resistant double-layer composite shielding control cable lacks a structure for insulating temperature, although the fire-resistant purpose can be achieved, the high temperature can be transmitted into the cable through the fire-resistant layer on the surface of the cable, so that the insulation skin of the cable in the interior is influenced, such as softening, and the insulation property of the cable is easily deteriorated.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a double-deck shielding structure control cable, includes the wearing layer, the inside complex of wearing layer has the flame retardant coating, the inside complex of flame retardant coating has the toughness enhancement layer, the inside complex of toughness enhancement layer has first shielding layer, the inside complex of first shielding layer has the insulating layer, the inside complex of insulating layer has the second shielding layer, the inside of second shielding layer is provided with the sinle silk, the fixed surface of sinle silk has cup jointed the insulating layer, it has heat insulating filler to fill between insulating layer and the second shielding layer.

The utility model further provides that the wear-resistant layer is made of nitrile rubber, and the toughness reinforcing layer is made of fluorosilicone rubber.

The technical scheme is adopted: the wear resistance of the cable is improved, and the toughness of the cable is improved.

The utility model further provides that the fireproof layer is made of flame-retardant rubber.

The technical scheme is adopted: the fireproof performance of the cable is improved.

The utility model further provides that the first shielding layer and the second shielding layer are respectively a copper mesh woven shielding layer and an aluminum-plastic composite belt wrapping shielding layer.

The technical scheme is adopted: the anti-interference performance of the cable to external electromagnetism is improved.

The utility model further provides that the heat insulation layer and the heat insulation filler are respectively made of polyimide films and glass fibers.

The technical scheme is adopted: the overall heat insulation performance of the cable is improved.

The utility model further provides that the insulating layer is made of PVC plastic.

The technical scheme is adopted: the insulation of the cable is ensured.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, through the design of the wear-resistant layer and the toughness reinforcing layer, the wear-resistant layer and the toughness reinforcing layer are respectively made of nitrile rubber and fluorosilicone rubber, so that the surface of the cable has extremely high wear resistance, the damage of an inner fireproof layer caused by external scraping is prevented, the fireproof performance of the fireproof layer is ensured, and the durability of the cable is improved;

according to the utility model, the heat insulation layer and the heat insulation filler are designed on the cable, so that the cable can insulate external high temperature when encountering fire, the external high temperature is prevented from penetrating into the cable, the insulating layer on the surface of the cable core inside the cable is influenced by high temperature, the insulativity of the cable is ensured, and the use safety of the cable is improved.

Drawings

Fig. 1 is a cross-sectional view of the structure of the present utility model.

In the figure: 1. a wear-resistant layer; 2. a fire-blocking layer; 3. a toughness reinforcing layer; 4. a first shielding layer; 5. a thermal insulation layer; 6. a second shielding layer; 7. a wire core; 8. an insulating layer; 9. and (5) heat insulation filler.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1:

referring to fig. 1, a control cable with a double-layer shielding structure comprises a wear-resistant layer 1, wherein a fireproof layer 2 is compounded in the wear-resistant layer 1, the fireproof layer 2 is made of flame-retardant rubber, the fireproof performance of the cable is improved, a toughness reinforcing layer 3 is compounded in the fireproof layer 2, the wear-resistant layer 1 is made of nitrile rubber, the toughness reinforcing layer 3 is made of fluorosilicone rubber, the wear resistance of the cable is improved, the toughness of the cable is improved, the wear-resistant layer 1 and the toughness reinforcing layer 3 are matched, the wear-resistant layer 1 and the toughness reinforcing layer 3 are respectively made of nitrile rubber and fluorosilicone rubber, the surface of the cable can be enabled to have extremely high wear resistance, the internal fireproof layer 2 is prevented from being damaged due to external scraping, the fireproof performance of the fireproof layer 2 is guaranteed, and the durability of the cable is improved.

The use process is briefly described: through the design of wearing layer 1 and toughness enhancement layer 3 in this cable, cooperation wearing layer 1 and toughness enhancement layer 3 are made by nitrile rubber and for fluoro-silicone rubber respectively, can make this cable surface possess high wear resistance, prevent that outside scraping from causing inside flame retardant coating 2 to appear damaging, ensure flame retardant coating 2's fire behavior, improve its durability.

Example 2:

referring to fig. 1, a control cable with a double-layer shielding structure is shown, a first shielding layer 4 is compounded in the toughness reinforcing layer 3, a heat insulation layer 5 is compounded in the first shielding layer 4, a second shielding layer 6 is compounded in the heat insulation layer 5, the first shielding layer 4 and the second shielding layer 6 are respectively copper mesh woven shielding layers and aluminum plastic composite tape wrapping shielding layers, a wire core 7 is arranged in the second shielding layer 6, the anti-interference performance of the cable on external electromagnetism is improved, an insulating layer 8 is fixedly sleeved on the surface of the wire core 7, a heat insulation filler 9 is filled between the insulating layer 8 and the second shielding layer 6, the heat insulation layer 5 and the heat insulation filler 9 are made of polyimide films and glass fibers respectively, the overall heat insulation performance of the cable is improved, the heat insulation layer 8 is made of PVC plastic, the heat insulation performance of the cable is guaranteed, the heat insulation layer 5 and the heat insulation filler 9 are designed on the cable, when the cable encounters a fire, the heat insulation layer 8 is prevented from penetrating into the cable at external high temperature, the surface of the cable is influenced by the insulating layer 8, the heat insulation layer 8 is guaranteed, the use of the cable is guaranteed, and the safety of the cable is improved.

The use process is briefly described: through design insulating layer 5 and thermal-insulated packing 9 above the cable, can make this cable when meetting the condition of a fire, external high temperature is isolated, prevents that outside high temperature from permeating the inside of cable, causes the insulating layer 8 on the inside sinle silk 7 surface of cable to receive high temperature influence, ensures the insulating nature of cable, improves the security that the cable used.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a double-deck shielding structure control cable, includes wearing layer (1), its characterized in that: the inside complex of wearing layer (1) has flame retardant coating (2), the inside complex of flame retardant coating (2) has toughness enhancement layer (3), the inside complex of toughness enhancement layer (3) has first shielding layer (4), the inside complex of first shielding layer (4) has insulating layer (5), the inside complex of insulating layer (5) has second shielding layer (6), the inside of second shielding layer (6) is provided with sinle silk (7), the fixed surface of sinle silk (7) has cup jointed insulating layer (8), it has heat insulating filler (9) to fill between insulating layer (8) and second shielding layer (6).

2. A double-layer shielding structure control cable according to claim 1, wherein: the wear-resistant layer (1) is made of nitrile rubber, and the toughness reinforcing layer (3) is made of fluorosilicone rubber.

3. A double-layer shielding structure control cable according to claim 1, wherein: the fireproof layer (2) is made of flame-retardant rubber.

4. A double-layer shielding structure control cable according to claim 1, wherein: the first shielding layer (4) and the second shielding layer (6) are respectively a copper mesh woven shielding layer and an aluminum-plastic composite belt wrapping shielding layer.

5. A double-layer shielding structure control cable according to claim 1, wherein: the heat insulation layer (5) and the heat insulation filler (9) are respectively made of polyimide films and glass fibers.

6. A double-layer shielding structure control cable according to claim 1, wherein: the insulating layer (8) is made of PVC plastic.