CN217361176U - Single core cable of high strength transmission signal - Google Patents

Abstract

The utility model belongs to the technical field of single core cable, especially, relate to a high strength transmission signal's single core cable. In order to meet the technical requirements on the tensile strength performance of a single-core signal cable in different environments, the cable structure is improved and the tensile strength is enhanced to overcome the defects of the technical tensile strength of the existing single-core cable, so that the technical problems of the single-core signal transmission cable product on the use requirements in different environments are met. The single-core signal cable comprises a copper wire, a layer of protection tube is added on the original basis of the existing single-core signal cable structure, a layer of high-strength steel wire is stranded on the periphery of the protection tube, the tensile resistance and the compressive resistance of the cable are enhanced, the steel wire can be a phosphatized steel wire, a stainless steel wire, a galvanized steel wire and the like, a layer of sheath material is extruded outside the steel wire, the cable is further protected in a reinforced mode, and the sheath material can be made of materials which are suitable for meeting the environment according to different use occasions, such as the cable is used outdoors.

Description

Single core cable of high strength transmission signal

Technical Field

The utility model belongs to the technical field of single core cable, especially, relate to a high strength transmission signal's single core cable.

Background

Single core cable conductor has BV cable conductor, RV cable conductor, BVV cable conductor, and the BVR cable conductor is multicore formula cable conductor, and raw and other materials are softer, have several little copper core twists and be in the same place, and universal single core electric wire colour has: red, yellow, blue, green, black, white, multicolored (yellow, green), brown. Because the cross section proportion is small, the material is not easy to be oxidized, and the short circuit capacity damage resistance is realized, so that the service life of the material is relatively long. The transmission line is hard, and the single core means that only one conductor is arranged in one insulating layer. When the voltage exceeds 35kV, most of the single-core cables are adopted, and the relationship between the wire core of the single-core cable and the metal shielding layer can be regarded as the relationship between the coil and the iron core in the primary winding of the transformer. When the single-core cable core passes through current, a magnetic line of force interlinkage aluminum packet or a metal shielding layer exists, so that induced voltage appears at two ends of the single-core cable core. The existing single-core cable adopts a two-end grounding mode at the voltage level of 35kV and below, and basically has no magnetic linkage outside an aluminum package or a metal shielding layer, so that no induced voltage basically exists at two ends of the aluminum package or the metal shielding layer, and no induced current flows through the aluminum package or the metal shielding layer after the two ends are grounded; in the prior art, the tensile strength of a single-core signal transmission cable cannot meet the use requirement in actual use, and the product has high requirement on the tensile strength of the single-core signal cable in many occasions in use in different environments;

the patent number is CN200810019701.4 high pressure crosslinked single core cable for wind power generation, specifically says that a wind is corrosion-resistant high pressure crosslinked single core cable for wind power generation, and the span of laying of cable can increase this cable by including conductive core, conductor shield, insulating layer, outer screen and copper strips shielding layer, non-woven fabrics and inner liner to and the oversheath, evenly be equipped with multiunit steel wire reinforcement core tied in a bundle in the oversheath along the circumferencial direction. Four groups, six groups or eight groups of bunched steel wire reinforced cores are uniformly arranged in the outer sheath along the circumferential direction, and four groups of bunched steel wire reinforced cores are preferably and uniformly arranged in the outer sheath, but the technical scheme also has the condition that the tensile strength of the cable can not meet the use requirement, and the product has high requirements on the tensile strength of a single-core signal cable in many occasions when used in different environments, so that the existing product has the technical defects, the structure of the cable is unreasonable, and the technical performance of the tensile strength of the cable can not meet the technical requirements of actual use;

the cable is characterized in that the cable is provided with a patent number CN201620392738.1 and comprises a wire, wherein a plurality of support rings are arranged on the outer wall of the wire at equal intervals, an outer protective sleeve is fixedly connected to the outer wall of each support ring, a temperature-sensitive resistance wire mounting hole is formed in the side surface of each support ring, a temperature-sensitive resistance wire is fixedly connected to the inner wall of each temperature-sensitive resistance wire mounting hole, a flame-retardant pipe mounting hole is formed in the side surface of each support ring, a flame-retardant pipe is fixedly connected to the inner wall of each flame-retardant pipe mounting hole, flame-retardant gas is arranged inside each flame-retardant pipe, the wire comprises a shielding layer, an insulating layer and a conductor core, the outer wall of the conductor core is sleeved with the insulating layer, the outer wall of the insulating layer is sleeved with the shielding layer, and the outer wall of the shielding layer is fixedly connected with the support rings; however, the technical scheme also has the condition that the tensile strength of the cable can not meet the use requirement, the product is used in different environments, the tensile strength of the single-core signal cable has high requirement on many occasions, the existing product has the technical defects that the structure of the cable is unreasonable, and the technical performance of the tensile strength of the cable can not meet the technical requirement of actual use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high strength transmission signal's single core cable, to the technical requirement of single core signal cable's tensile strength performance in order to satisfy different environment uses, to the technical tensile strength of current single core cable have a defect, improve cable structure, strengthen its tensile strength to satisfy the technical problem of single core signal transmission cable product at different environment operation requirements.

In order to achieve the above object, the utility model discloses a single core cable of high strength transmission signal's concrete technical scheme as follows:

the single-core cable for high-strength signal transmission comprises copper wires, wherein an insulating layer, a protective tube, a steel wire layer and an outer sheath layer are sequentially arranged on the copper wires from inside to outside.

Further, the steel wire layer includes solid rubber layer and steel wire, and the protection tube outside cladding has solid rubber layer, is provided with the high strength steel wire that stranded circumference evenly set up in the solid rubber layer.

Further, the outer sheath layer includes heat-conducting layer and fire-retardant layer, the cladding of hard rubber layer outside has the heat-conducting layer, and the cladding of heat-conducting layer outside has fire-retardant layer.

Further, the heat-conducting layer includes heat conduction silicone grease layer, the cladding in the hard rubber layer outside has heat conduction silicone grease layer, and the heat conduction silicone grease layer outside is provided with the heat pipe, and circumference evenly is provided with the stranded thermoscope line between heat conduction silicone grease layer and the heat pipe, and fire-retardant layer cladding is in the heat pipe outside.

Further, the flame-retardant layer comprises a flame-retardant medium layer, the flame-retardant medium layer is wrapped on the outer side of the heat conduction pipe, and a flame-retardant layer pipe is arranged on the outer side of the flame-retardant medium layer.

Furthermore, the flame-retardant dielectric layer is a material which is solidified at low temperature and dissolved at high temperature.

Further, the solidification point of the flame-retardant medium layer is higher than the highest heat conduction temperature of the heat conduction silicone grease layer.

The utility model has the advantages that:

the utility model discloses an increase one deck protection tube on current single core signal cable structure original foundation, and strand a layer of high strength steel wire in the periphery of protection tube, with the stretching resistance and the compressive resistance of reinforcing cable, the steel wire can use phosphating steel wire, stainless steel wire, galvanized steel wire etc. extrude a layer of sheath material again outside the steel wire, further strengthen the protection to the cable, the sheath material can use the material that is fit for satisfying the environment according to the use occasion difference, if the cable uses outdoors, should use black polyethylene material as the cable sheathing, use low smoke and zero halogen material in indoor use, polyvinyl chloride material, polyurethane material etc. to reach safety, environmental protection, satisfy the technical performance requirement that the product used in different environment; the heat-conducting silicone grease layer can rapidly guide the temperature in the cable to the outside; the change of the internal temperature of the heat-conducting silicone grease layer can be monitored through a temperature measuring line; the flame-retardant dielectric layer can prevent the cable from spontaneous combustion at high temperature, thereby protecting the cable.

Drawings

Fig. 1 is a schematic view of the overall structure of a single-core cable for high-strength signal transmission according to the present invention;

fig. 2 is a schematic diagram of a steel wire layer structure of a single core cable for high-strength signal transmission according to the present invention;

fig. 3 is a schematic structural view of a heat conduction layer of a single core cable for high-strength signal transmission according to the present invention;

fig. 4 is a schematic structural view of a flame retardant layer of a single core cable for high strength signal transmission according to the present invention;

the symbols in the figure illustrate:

1 of copper wire; an insulating layer 2; a protective tube 3; a steel wire layer 4; 4-1 of steel wires; a hard rubber layer 4-2; an outer jacket layer 5; a heat conducting layer 5-1; the heat conduction pipe 5-1-1; 5-1-2 of temperature measuring line; 5-1-3 of a heat-conducting silicone grease layer; 5-2 of a flame-retardant layer; 5-2-1 of a flame-retardant layer pipe; and 5-2-2 of a flame-retardant dielectric layer.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

EXAMPLE 1

As shown in fig. 1, the single-core cable for high-strength signal transmission comprises a copper wire 1, wherein the copper wire 1 is sequentially provided with an insulating layer 2, a protective tube 3, a steel wire layer 4 and an outer sheath layer 5 from inside to outside, and the steel wire layer 4 can be formed. The tensile resistance and the compressive resistance of the cable are enhanced, the outer sheath layer 5 can further strengthen and protect the cable, the sheath material can be made of materials which are suitable for meeting the environment according to different uses of use occasions, if the cable is used outdoors, black polyethylene materials are used as cable sheaths, low-smoke halogen-free materials, polyvinyl chloride materials, polyurethane materials and the like can be used indoors, so that the safety and the environmental protection are achieved, and the technical performance requirements of the product used in different environments are met.

EXAMPLE 2

As shown in fig. 2, the steel wire layer 4 includes a hard rubber layer 4-2 and steel wires 4-1, the hard rubber layer 4-2 is coated outside the protection tube 3, a plurality of high strength steel wires 4-1 are uniformly arranged in the hard rubber layer 4-2 in the circumferential direction, the high strength steel wires 4-1 are stranded on the periphery of the protection tube 3 to enhance the tensile strength and the compressive strength of the cable, and phosphated steel wires, stainless steel wires, galvanized steel wires, etc. can be used as the steel wires 4-1.

EXAMPLE 3

As shown in fig. 1, the outer sheath layer 5 includes a heat conduction layer 5-1 and a flame retardant layer 5-2, the heat conduction layer 5-1 is coated outside the hard rubber layer 4-2, and the flame retardant layer 5-2 is coated outside the heat conduction layer 5-1;

the outer sheath layer 5 can be to the further enhancement protection of cable, and the sheath material can be according to the different materials that are fit for satisfying the environment of using of use occasion, if the cable uses in the open air, should use black polyethylene material to make cable sheathing, uses the low smoke and zero halogen material in indoor, polyvinyl chloride material, polyurethane material etc. to reach safety, environmental protection, satisfy the technical performance requirement that the product used in different environment.

EXAMPLE 4

As shown in fig. 3, the heat conducting layer 5-1 comprises a heat conducting silicone layer 5-1-3, the heat conducting silicone layer 5-1-3 is coated outside the hard rubber layer 4-2, the heat conducting pipe 5-1-1 is arranged outside the heat conducting silicone layer 5-1-3, a plurality of temperature measuring lines 5-1-2 are uniformly arranged between the heat conducting silicone layer 5-1-3 and the heat conducting pipe 5-1-1 in the circumferential direction, and the flame retardant layer 5-2 is coated outside the heat conducting pipe 5-1-1;

the temperature measuring line 5-1-2 can be a metal wire with larger resistance change along with the temperature;

the heat-conducting silicone layer 5-1-3 can rapidly guide the temperature in the cable to the outside; the change in the internal temperature of the thermally conductive silicone grease layer 5-1-3 can be monitored by the temperature measurement line 5-1-2.

EXAMPLE 5

As shown in fig. 4, the flame retardant layer 5-2 includes a flame retardant medium layer 5-2-2, the flame retardant medium layer 5-2-2 covers the outer side of the heat conducting pipe 5-1-1, and a flame retardant layer pipe 5-2-1 is arranged on the outer side of the flame retardant medium layer 5-2-2; the flame-retardant dielectric layer 5-2-2 is a material which is solidified at a low temperature and dissolved at a high temperature; the solidification point of the flame-retardant medium layer 5-2-2 is higher than the highest heat conduction temperature of the heat conduction silicone grease layer 5-1-3;

the flame-retardant dielectric layer 5-2-2 can prevent the cable from spontaneous combustion at high temperature, thereby protecting the cable.

The working principle is as follows:

a layer of high-strength steel wire 4-1 is stranded on the periphery of the protection tube 3 to enhance the tensile resistance and the compressive resistance of the cable, and the steel wire 4-1 can be a phosphated steel wire, a stainless steel wire, a galvanized steel wire and the like; the outer sheath layer 5 can further strengthen the protection of the cable, the sheath material can be made of materials suitable for meeting the environment according to different use occasions, for example, the cable is used outdoors, black polyethylene materials are used as the cable sheath, and low-smoke halogen-free materials, polyvinyl chloride materials, polyurethane materials and the like can be used indoors, so that the safety and environmental protection are achieved, and the technical performance requirements of the product in different environments are met; the heat-conducting silicone layer 5-1-3 can rapidly guide the temperature in the cable to the outside; the change of the internal temperature of the heat conductive silicone grease layer 5-1-3 can be monitored through the temperature measurement line 5-1-2; the flame-retardant dielectric layer 5-2-2 can prevent the cable from spontaneous combustion at high temperature, thereby protecting the cable.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes or equivalents may be substituted for elements thereof by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.

Claims (1)

1. The utility model provides a single core cable of high strength transmission signal, includes copper wire (1), its characterized in that: the copper wire (1) is sequentially provided with an insulating layer (2), a protective tube (3), a steel wire layer (4) and an outer sheath layer (5) from inside to outside;

the steel wire layer (4) comprises steel wires (4-1) and a hard rubber layer (4-2), the hard rubber layer (4-2) is coated on the outer side of the protection tube (3), and a plurality of high-strength steel wires (4-1) which are uniformly arranged in the circumferential direction are arranged in the hard rubber layer (4-2);

the outer sheath layer (5) comprises a heat conduction layer (5-1) and a flame retardant layer (5-2), the heat conduction layer (5-1) is coated on the outer side of the hard rubber layer (4-2), and the flame retardant layer (5-2) is coated on the outer side of the heat conduction layer (5-1);

the heat conducting layer (5-1) comprises a heat conducting silicone grease layer (5-1-3), the outer side of the hard rubber layer (4-2) is wrapped with the heat conducting silicone grease layer (5-1-3), the outer side of the heat conducting silicone grease layer (5-1-3) is provided with the heat conducting pipe (5-1-1), a plurality of temperature measuring lines (5-1-2) are circumferentially and uniformly arranged between the heat conducting silicone grease layer (5-1-3) and the heat conducting pipe (5-1-1), and the flame retardant layer (5-2) is wrapped on the outer side of the heat conducting pipe (5-1-1);

the flame-retardant layer (5-2) comprises a flame-retardant medium layer (5-2-2), the flame-retardant medium layer (5-2-2) is coated on the outer side of the heat conduction pipe (5-1-1), and a flame-retardant layer pipe (5-2-1) is arranged on the outer side of the flame-retardant medium layer (5-2-2).

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