CN215265671U - High and low temperature resistant signal cable - Google Patents

Abstract

The utility model discloses a high low temperature resistant signal cable, including the sinle silk, the outside parcel of sinle silk has the insulating layer, one side parcel that the sinle silk was kept away from to the insulating layer has fire-retardant layer, one side parcel that the insulating layer was kept away from on fire-retardant layer has the heat insulating layer, one side parcel that fire-retardant layer was kept away from on the heat insulating layer has the shielding layer, one side parcel that the heat insulating layer was kept away from on the shielding layer has the inoxidizing coating. The utility model discloses a soft polyurethane composite material, it has higher tensile strength, better wearability, the erosion and the electron irradiation resistance performance of all kinds of grease and solvent resistant, is difficult to because of the ageing stiffening fracture of high low temperature environmental factor, leads to the high temperature resistant and the microthermal performance of cable to reduce, under the-60 ℃ low temperature condition, still can keep good bending property, has solved the poor problem of signal cable and resistant high low temperature environmental performance.

Description

High and low temperature resistant signal cable

Technical Field

The utility model relates to an electric power tech field specifically is a high low temperature resistant signal cable.

Background

The cable is a conductor coated with an insulating layer, a protective layer, a shielding layer and the like for transmitting power or signal current and signal voltage, and can be divided into a high-voltage cable and a low-voltage cable according to voltage, the cable is generally composed of a wire core, the insulating layer and the protective layer, the wire core is used for conducting current and is generally formed by stranding a plurality of strands of copper wires or a plurality of strands of aluminum wires, the cable comprises a single core, a double core, a three core, a four core and the like, the double core cable is used for a single-phase line, the three core and the four core cable are respectively used for a three-phase three-wire line and a three-phase four-wire line, the single core cable can be applied to the single-phase line or the three-phase line as required, the existing signal cable has poor high and low temperature resistance, the internal structure can be softened and deformed under the high temperature environment, the cable can cause short circuit failure, the internal lead to be broken due to thermal expansion and cold contraction under the low temperature environment, the cable cannot be applied to an environment with large temperature change, so that how to design a high and low temperature resistant signal cable becomes a problem to be solved currently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a resistant high low temperature signal cable to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: in order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high low temperature resistant signal cable, includes the sinle silk, the outside parcel of sinle silk has the insulating layer, one side parcel that the sinle silk was kept away from to the insulating layer has fire-retardant layer, one side parcel that the insulating layer was kept away from to fire-retardant layer has the heat insulating layer, one side parcel that fire-retardant layer was kept away from to the heat insulating layer has the shielding layer, one side parcel that the heat insulating layer was kept away from to the shielding layer has the inoxidizing coating.

Preferably, the material of the wire core is a silver-plated conductor.

Preferably, the insulating layer is made of a silica gel material.

Preferably, the flame-retardant layer is made of Kevlar mesh woven aramid fiber material.

Preferably, the material of the heat insulation layer is a soft polyurethane composite material.

Preferably, the shielding layer is made of copper or tin-plated copper.

Preferably, the material of the protective layer is a polyurethane material.

Compared with the prior art, the beneficial effects of the utility model are that:

the high and low temperature resistant signal cable protective layer adopts a polyurethane material, the polyurethane material has excellent mechanical property, can bear metal impact and cutting with higher strength, has very high tensile strength, and can also bear long-term repeated bending, the shielding layer adopts copper or tin-plated copper, on one hand, interference signals can be smoothly guided out, on the other hand, the shielding layer has enough bending resistance to avoid metal fragments from influencing other electrical equipment, the temperature insulating layer adopts a soft polyurethane composite material, the high and low temperature resistant signal cable protective layer has higher tensile strength, better wear resistance, resistance to corrosion of various grease and solvents, electron irradiation resistance and other properties, the high and low temperature resistant signal cable protective layer is not easy to age, harden and crack due to high and low temperature environmental factors, the high and low temperature resistant property of the cable is reduced, the good bending property can be still kept under the low temperature condition of minus 60 ℃, and the problem of poor performance of the signal cable and the high and low temperature resistant environment is solved, silica gel is used as an insulating layer, the high insulating property of the silica gel is utilized, the dielectric loss, the voltage resistance, the electric arc resistance, the corona resistance, the volume resistivity, the surface resistivity and the like of the silica gel are listed as the first place in insulating materials, and the electric properties of the silica gel are slightly influenced by temperature and frequency, so that the electric properties and the insulating property of the cable are greatly improved.

Drawings

Fig. 1 is a schematic view of the internal structure of the present invention.

In the figure: 1. a protective layer; 2. a shielding layer; 3. a thermal insulation layer; 4. a flame retardant layer; 5. an insulating layer; 6. and a wire core.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, the present invention provides an embodiment:

the utility model provides a high low temperature resistant signal cable, includes sinle silk 6, and the outside parcel of sinle silk 6 has insulating layer 5, and one side parcel that insulating layer 5 kept away from sinle silk 6 has fire-retardant layer 4, and one side parcel that insulating layer 5 was kept away from to fire-retardant layer 4 has heat insulating layer 3, and one side parcel that fire-retardant layer 4 was kept away from to heat insulating layer 3 has shielding layer 2, and one side parcel that shielding layer 2 kept away from heat insulating layer 3 has inoxidizing coating 1.

Further, the material of the wire core 6 is a silver-plated conductor.

Further, the insulating layer 5 is made of a silica gel material.

Further, the flame-retardant layer 4 is made of Kevlar net-shaped woven aramid fiber material.

Further, the material of the thermal insulation layer 3 is a soft polyurethane composite material.

Further, the material of the shielding layer 2 is copper or tin-plated copper.

Further, the material of the protective layer 1 is polyurethane material.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (7)

1. The utility model provides a resistant high low temperature signal cable, includes sinle silk (6), its characterized in that: the outside parcel of sinle silk (6) has insulating layer (5), one side parcel that sinle silk (6) were kept away from in insulating layer (5) has fire-retardant layer (4), one side parcel that insulating layer (5) were kept away from in fire-retardant layer (4) has heat insulating layer (3), one side parcel that fire-retardant layer (4) were kept away from in heat insulating layer (3) has shielding layer (2), one side parcel that heat insulating layer (3) were kept away from in shielding layer (2) has inoxidizing coating (1).

2. The high and low temperature resistant signal cable of claim 1, wherein: the wire core (6) is made of a silver-plated conductor.

3. The high and low temperature resistant signal cable of claim 1, wherein: the insulating layer (5) is made of a silica gel material.

4. The high and low temperature resistant signal cable of claim 1, wherein: the flame-retardant layer (4) is made of Kevlar mesh woven aramid fiber material.

5. The high and low temperature resistant signal cable of claim 1, wherein: the heat insulation layer (3) is made of soft polyurethane composite material.

6. The high and low temperature resistant signal cable of claim 1, wherein: the shielding layer (2) is made of copper or tin-plated copper.

7. The high and low temperature resistant signal cable of claim 1, wherein: the protective layer (1) is made of a polyurethane material.

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