CN215868760U

CN215868760U - Fire-resistant computer cable

Info

Publication number: CN215868760U
Application number: CN202122188193.6U
Authority: CN
Inventors: 丁丽萍; 张春友
Original assignee: Quantong Cable Ltd By Share Ltd
Current assignee: Quantong Cable Ltd By Share Ltd
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2022-02-18
Anticipated expiration: 2031-09-10

Abstract

The utility model relates to a fire-resistant type computer cable relates to the cable field, and it includes many sinle silks, and every sinle silk includes two at least wires of pair twist, all is provided with first flame retardant coating outside every sinle silk, and the outer parcel of all sinle silks has the second flame retardant coating, and the cavity in the second flame retardant coating, outside the first flame retardant coating is fire-retardant chamber, and fire-retardant intracavity is provided with many heat conduction silks, and the outer parcel of second flame retardant coating has shielding layer, insulating layer and protective layer. Insulating layer and protective layer, the shielding layer can be anti-interference, the insulating layer reduces cable current or electricity ripples flow direction external, and the protective layer reduces the cable and receives mechanical damage, through setting up the heat conduction silk in first flame retardant coating, second flame retardant coating and the fire-retardant intracavity, and then when the cable meets naked light or high temperature, this application has can be through the heat conduction silk to the local quick heat conduction of being heated, and then reduces the inside high temperature of cable and lead to the effect of spontaneous combustion.

Description

Fire-resistant computer cable

Technical Field

The application relates to the field of cables, in particular to a fire-resistant computer cable.

Background

The computer cable is mainly used for circuit connection or signal transmission between an automatic control system taking an electronic computer as a main part and instruments and meters, and because the computer cable is widely applied to places such as various large buildings, subways, large supermarkets and other places with dense personnel, whether the computer cable can normally operate within a certain time or not plays an important role in escape and disaster relief when a fire disaster occurs.

Most computer cables in the related art are only directly wrapped with a fire-resistant material outside a conductor, but when the cable is partially exposed to open fire and heated, the heated part of the cable is easily heated by high heat and spontaneously burns, and further the cable is damaged.

In view of the above-mentioned related technologies, the inventor believes that the temperature inside the heated portion of the computer cable is easily raised to cause spontaneous combustion after the computer cable is exposed to open fire or high temperature, and further, the whole computer cable is damaged and cannot be used.

SUMMERY OF THE UTILITY MODEL

In order to reduce the situation that the internal spontaneous combustion of the computer cable part is subjected to high heat, the application provides a fire-resistant computer cable.

The application provides a fire-resistant type computer cable adopts following technical scheme:

the utility model provides a fire-resistant type computer cable, includes many sinle silks, every the sinle silk includes two at least wires of pair twist, every all be provided with first flame retardant coating outside the sinle silk all the outer parcel of sinle silk has the second flame retardant coating, in the second flame retardant coating, the outer cavity of first flame retardant coating is fire-retardant chamber, fire-retardant intracavity is provided with many heat conduction wires, the second flame retardant coating wraps up shielding layer, insulating layer and protective layer outward in proper order.

By adopting the technical scheme, the first fire-resistant layer is arranged outside the wire cores, the second fire-resistant layer is wrapped outside all the wire cores, the heat conducting wires are arranged in the fire-resistant cavity, the shielding layer, the insulating layer and the protective layer are wrapped outside the second fire-resistant layer, the shielding layer can resist interference, the insulating layer reduces the current or electric measuring wave of the cable to flow to the outside, the protective layer reduces the mechanical damage to the cable, and then when the cable is exposed to open fire or high temperature, the heat conducting wires can rapidly conduct the heat of the heated part, so that the temperature of the heated part reaches the ignition point, and the situation that the cable part of the computer is subjected to high heat and then leads to spontaneous combustion is reduced.

Optionally, the number of the wire cores is three, the number of the heat conduction wires is four, the three wire cores are uniformly distributed along the circumferential direction of one of the heat conduction wires, and the other three heat conduction wires are uniformly distributed along the circumferential direction of the heat conduction wire in the center of the wire core and are arranged at intervals with the wire core.

Through adopting above-mentioned technical scheme, through setting up three sinle silks, four heat conduction silks, the sinle silk winds a heat conduction silk circumference evenly distributed, and all the other heat conduction silks distribute around the sinle silk, and then are favorable to making cable inner structure comparatively stable to diversely dispel the heat to the sinle silk, further promote the heat conduction efficiency to the position sinle silk that heats.

Optionally, a positioning protrusion is fixed on the inner side wall of the second refractory layer, and the positioning protrusion is used for positioning the heat conducting wires.

Through adopting above-mentioned technical scheme, protruding through setting up the location, be favorable to reducing the heat conduction silk and moved away from the sinle silk to reduce the circumstances to the radiating effect of sinle silk.

Optionally, the positioning protrusion has elasticity.

Through adopting above-mentioned technical scheme, it is protruding to have elastic location through the setting, and then after sinle silk, heat conduction silk thermal expansion, can be through the protruding space in the fire-retardant chamber of increase of extrusion location, and then alleviate the pressure to the second flame retardant coating.

Optionally, two ends of the flame-retardant cavity in the length direction are closed, and the flame-retardant cavity is filled with flame-retardant gas.

Through adopting above-mentioned technical scheme, through filling fire-retardant gas in fire-retardant intracavity, and then be favorable to reducing the inside spontaneous combustion's of cable condition because of reaching the ignition point.

Optionally, the shielding layer is a double-layer shielding structure.

Through adopting above-mentioned technical scheme, through setting up double-deck shielding structure, can further promote the shielding effect of cable.

Optionally, a cavity formed inside the first refractory layer and outside the wire is filled with a flame retardant.

By adopting the technical scheme, the flame retardant is filled in the cavity in the first flame retardant coating, so that the possibility of spontaneous combustion of the conducting wire due to heating is reduced.

Optionally, the outer side wall of the second refractory layer is serrated.

Through adopting above-mentioned technical scheme, be the second flame retardant coating of cockscomb structure through setting up the lateral wall, and then be favorable to increasing the area of second flame retardant coating lateral wall, improve the fire resistance of second flame retardant coating to outside naked light.

In summary, the present application includes at least one of the following beneficial technical effects:

by arranging the plurality of heat conducting wires in the flame-retardant cavity, when the cable part is exposed to open fire or high temperature, the heat conducting wires can quickly transfer heat along the length direction of the cable, so that the situation that the interior of the heated part quickly reaches an ignition point and then spontaneously ignites is reduced, and the fire resistance of the cable is favorably improved;

due to the arrangement of the elastic positioning bulges, excessive pressure on the side wall of the second flame retardant coating after the cable core and the heat conducting wire are heated and expanded in the cable is reduced;

and flame-retardant gas is filled in the flame-retardant cavity, so that the situation of spontaneous combustion caused by temperature rise in the cable is reduced.

Drawings

FIG. 1 is a schematic cross-sectional view of a fire-resistant computer cable according to an embodiment of the present application.

Description of reference numerals: 1. a wire core; 2. a first refractory layer; 21. a flame retardant; 3. a second refractory layer; 31. a flame retardant cavity; 32. positioning the projection; 4. heat conducting wires; 5. a shielding layer; 6. an insulating layer; 7. and a protective layer.

Detailed Description

The present application is described in further detail below with reference to fig. 1.

The embodiment of the application discloses a fire-resistant computer cable. Referring to fig. 1, the fire-resistant computer cable comprises three wire cores 1, a second fire-resistant layer 3 wraps the three wire cores 1, a fire-resistant cavity 31 is formed by the inner side wall of the second fire-resistant layer 3 and the outer side wall of the wire cores 1, and four heat-conducting wires 4 penetrate through the fire-resistant cavity 31. The second refractory layer 3 is sequentially wrapped with a shielding layer 5, an insulating layer 6 and a protective layer 7.

Every sinle silk 1 is formed by two wire pair twists, and the material of wire is metallic conductor such as copper, and two outer parcel of wire have first flame retardant coating 2, and the material of first flame retardant coating 2 is novel polymer refractory material like ceramic silicon rubber etc. and the intussuseption of the inside cavity of first flame retardant coating 2 is filled with fire-retardant thing 21, and fire-retardant thing 21 is fire-retardant glass silk etc. and then is favorable to reducing the condition of spontaneous combustion after the wire is heated and reaches spontaneous combustion temperature.

Wear to be equipped with four heat conduction silks 4 in the fire-retardant chamber 31, the material of heat conduction silk 4 is superconducting material for example pure copper etc. three sinle silk 1 are article word form and arrange to around 4 circumference evenly distributed of one of them heat conduction silk, and rather than lateral wall butt, 4 same heat conduction silks 4 circumference evenly distributed around the heat conduction silk in the middle of sinle silk 1 in addition, all the other three heat conduction silks 4 are interval form distribution and with the lateral wall butt of two adjacent sinle silks 1 with sinle silk 1. The two ends of the flame-retardant cavity 31 are sealed by adhesive, flame-retardant gas is filled in the flame-retardant cavity 31, and the flame-retardant gas is carbon dioxide and the like, so that the possibility of internal combustion of the cable is reduced.

The material of second flame retardant coating 3 is novel polymer refractory material such as ceramic silicon rubber, and the inner wall fixedly connected with of second flame retardant coating 3 fixes a position protruding 32, fixes a position protruding 32 along the circumference evenly distributed of second flame retardant coating 3 and correspond the position of heat conduction silk 4, and the lateral wall that second flame retardant coating 3 was kept away from to protruding 32 in location is convex and with the lateral wall looks butt of heat conduction silk 4, and then plays the positioning action to heat conduction silk 4. The positioning protrusion 32 is made of an elastic material, and when the heat conducting wire 4 and the wire core 1 are heated and expanded, the positioning protrusion 32 is contracted after being extruded to increase the space of the flame-retardant cavity 31, so that the pressure of the heat conducting wire 4 and the wire core 1 on the side wall of the second flame-retardant layer 3 is reduced.

A plurality of trapezoidal teeth are integrally fixed on the outer wall of the second flame retardant coating 3, and are uniformly distributed along the circumferential direction of the second flame retardant coating 3, so that the outer wall of the second flame retardant coating 3 is of a saw-toothed shape, the area of the outer side wall of the second flame retardant coating 3 is increased, and the fire resistance of the second flame retardant coating 3 is improved. The shielding layer 5 is of a double-layer structure and is formed by wrapping a metal belt and weaving a metal wire. The insulating layer 6 adopts a plastic insulating mode, is made of cross-linked polyethylene and the like, and further reduces the current or electromagnetic wave transmitted by the wire core 1 to flow to the outside. The protective layer 7 is a rubber and plastic protective layer 7, and has a protective effect on the inside of the cable, so that damage to the inside of the cable caused by external mechanical damage is reduced.

The implementation principle of the fire-resistant computer cable in the embodiment of the application is as follows: wear to establish heat conduction silk 4 through in fire-retardant chamber 31 to with heat conduction silk 4 interval distribution in sinle silk 1 other, and then when the cable part is heated, heat conduction silk 4 can conduct the heat along cable length direction, and then is favorable to reducing the cable part and is heated the condition that the high temperature leads to the spontaneous combustion.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A fire-resistant computer cable, comprising: including many sinle silks (1), every sinle silks (1) include the wire of two at least pair twists, every sinle silks (1) all are provided with first flame retardant coating (2), all the outer parcel of sinle silks (1) has second flame retardant coating (3), cavity in second flame retardant coating (3), outside first flame retardant coating (2) is fire-retardant chamber (31), be provided with many heat conduction silk (4) in fire-retardant chamber (31), second flame retardant coating (3) wraps up shielding layer (5), insulating layer (6) and protective layer (7) outward in proper order.

2. A fire-resistant computer cable as claimed in claim 1, wherein: the heat-conducting wire is characterized in that the number of the wire cores (1) is three, the number of the heat-conducting wires (4) is four, the three wire cores (1) are uniformly distributed along the circumferential direction of one of the heat-conducting wires (4), and the other three heat-conducting wires (4) are uniformly distributed along the circumferential direction of the heat-conducting wire (4) in the center of the wire core (1) and are arranged at intervals with the wire core (1).

3. A fire-resistant computer cable as claimed in claim 2, wherein: and a positioning bulge (32) is fixed on the inner side wall of the second refractory layer (3), and the positioning bulge (32) is used for positioning the heat-conducting wire (4).

4. A fire-resistant computer cable as claimed in claim 3, wherein: the positioning protrusion (32) has elasticity.

5. A fire-resistant computer cable as claimed in claim 1, wherein: the two ends of the flame-retardant cavity (31) in the length direction are sealed, and flame-retardant gas is filled in the flame-retardant cavity (31).

6. A fire-resistant computer cable as claimed in claim 1, wherein: the shielding layer (5) is of a double-layer shielding structure.

7. A fire-resistant computer cable as claimed in claim 6, wherein: and a cavity formed by the inner part of the first flame retardant coating (2) and the outer part of the lead is filled with a flame retardant (21).

8. A fire-resistant computer cable as claimed in claim 1, wherein: the outer side wall of the second refractory layer (3) is in a sawtooth shape.