CN210925528U

CN210925528U - Graphene composite high-thermal-conductivity polyvinyl chloride sheath signal cable

Info

Publication number: CN210925528U
Application number: CN201921876172.XU
Authority: CN
Inventors: 吴惠明
Original assignee: DONGGUAN MINXING CABLES CO LTD
Current assignee: DONGGUAN MINXING CABLES CO LTD
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-07-03
Anticipated expiration: 2029-10-31

Abstract

The utility model relates to a can save graphite alkene compound high heat conduction polyvinyl chloride sheath signal cable of copper use amount, this cable includes many sinle silks, and every sinle silk all is equipped with aluminium conductor, graphite alkene conducting layer, insulating layer, graphite alkene shielding layer, the inner sheath that wraps in proper order from inside to outside, graphite alkene shielding layer ground connection sets up, the material of inner sheath specifically is general type polyvinyl chloride; the cable is characterized by further comprising a wrapping belt, a filling rope and an outer sheath located on the outer side of the cable, wherein the wire cores are wrapped by the wrapping belt after being gathered together, the filling rope fills the hollow gap on the inner side of the wrapping belt, the outer sheath is made of cross-linked polyvinyl chloride, and the cross-linked polyvinyl chloride is wrapped on the outer side of the wrapping belt.

Description

Graphene composite high-thermal-conductivity polyvinyl chloride sheath signal cable

Technical Field

The utility model relates to a compound high heat conduction polyvinyl chloride sheath signal cable of graphite alkene.

Background

The copper resource in China is seriously lacked, the external dependency degree is up to 75%, the electric wire and cable, as the second major supporting industry in China, accounts for more than 50% of the total copper consumption in China, and from the strategy of energy conservation and emission reduction and the cost consideration of enterprises, the application of a copper conductor in the electric wire and cable is researched, particularly, the electric wire and cable capable of saving the copper consumption is important to research, and the graphene, as a novel two-dimensional carbon nano material, has the heat conductivity coefficient of up to 5300W/m.K, the electron mobility of more than 15000cm 2/V.s at normal temperature, the resistivity of about 10-6 omega.cm, is lower than that of copper or silver, is a material with the smallest resistivity in the world, and has wide application prospects in the field of electric power.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an improve the weak point among the prior art, and provide the compound high heat conduction polyvinyl chloride sheath signal cable of graphite alkene that can save the copper use amount.

Therefore, the graphene composite high-thermal-conductivity polyvinyl chloride sheath signal cable comprises a plurality of wire cores, wherein each wire core is provided with an aluminum conductor, a graphene conducting layer, an insulating layer, a graphene shielding layer and an inner sheath which are sequentially coated from inside to outside, the graphene shielding layer is arranged in a grounding mode, and the inner sheath is made of universal polyvinyl chloride; the cable is characterized by further comprising a wrapping belt, a filling rope and an outer sheath located on the outer side of the cable, wherein the wire cores are wrapped by the wrapping belt after being gathered together, the filling rope fills the hollow gap on the inner side of the wrapping belt, the outer sheath is made of cross-linked polyvinyl chloride, and the cross-linked polyvinyl chloride is wrapped on the outer side of the wrapping belt.

Further, the material of the insulating layer is specifically crosslinked polyethylene.

Further, the wrapping tape is a water-blocking tape.

Further, it is characterized in that: and a steel wire armor is arranged between the wrapping tape and the outer sheath.

Furthermore, an inner protection layer is coated on the outer side of the wrapping tape, and the inner protection layer is attached to the steel wire armor.

Further, the material of the inner sheath layer is specifically cross-linked polyethylene.

Has the advantages that:

the utility model discloses a sinle silk replaces copper with aluminium to make the conductor to at aluminium conductor outside coating graphite alkene conducting layer, utilize graphite alkene to make the electrically conductive effect of conductor excellent, the sinle silk has and sets gradually insulating layer, graphite alkene shielding layer, inner sheath by graphite alkene conducting layer to outside, wherein the insulating layer is used for realizing good electric isolation, graphite alkene shielding layer is used for leading external interference signal especially the interference signal between the adjacent sinle silk to ground, the inner sheath adopts general polyvinyl chloride to wrap up graphite alkene shielding layer, prevent that coating from breaking away from on the one hand, another side makes graphite alkene shielding layer and external insulation; the cable core is wrapped by a wrapping tape and then coated by crosslinked polyvinyl chloride, the corrosion resistance of the cable is enhanced by using the characteristics of oil resistance, strong acid resistance and strong alkali resistance of the crosslinked polyvinyl chloride, the whole cable is free of copper, the using amount of copper can be saved, and the purpose of reducing cost is achieved.

The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the present invention is given.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 shows a schematic cross-sectional structure of the cable of the present invention.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

The cable of the present embodiment is used for transmitting signals, and the cross-sectional structure of the cable is as shown in fig. 1, and includes a plurality of cores 1, and the cores 1 are close to each other.

The conductor of each wire core 1 is an aluminum conductor 11, the resistivity of the conductor is slightly larger than that of copper, a layer of graphene conductive coating is coated on the outer side of the conductor, the graphene conductive layer 12 is formed after the coating is dried, the graphene is a semiconductor with zero energy gap, the heat conductivity coefficient of the graphene is as high as 5300W/m.K, the movement speed of electrons at normal temperature can reach 1/300 of light speed, and is far higher than that of other metal conductors or semiconductors, so that the carrier mobility of the graphene is highest, but the resistivity of the graphene is lower than that of copper or silver, the graphene conductive coating has the characteristic of excellent conductivity, and the graphene conductive coating is coated on the outer side of the aluminum conductor 11 and can.

The outside cladding of graphite alkene conducting layer 12 has insulating layer 13, and the material of insulating layer 13 adopts for crosslinked polyethylene (XLPE), and this place is first to utilize its insulating nature to realize carrying out electrical isolation between aluminium conductor 11 and the external world, and secondly because it has apparent high temperature resistant characteristic concurrently, can support aluminium conductor 11 transmission heavy current, bears the temperature rise that aluminium conductor 11 transmission heavy current arouses, makes the conductor current-carrying capacity margin high.

The outer side of the insulating layer 13 is coated with a layer of graphene conductive coating, the coating is grounded after being dried to form a graphene shielding layer 14, and the graphene shielding layer 14 is used for leading external interference signals, particularly interference signals between adjacent wire cores 1, to the ground, so that stability of data transmission is guaranteed.

The outer side of the graphene shielding layer 14 is coated with an inner sheath 15, the inner sheath 15 is made of universal polyvinyl chloride, and the graphene shielding layer 14 is protected mainly by the vibration resistance, mechanical impact resistance and other properties of the universal polyvinyl chloride, so that the coating is prevented from being separated, and the graphene shielding layer is insulated from the outside by the insulation property of the coating.

Referring to fig. 1, after the wire cores 1 are gathered together, the water blocking tape 2 is used for wrapping, and the water blocking tape 2 absorbs moisture or humidity and rapidly expands to form a gel substance to block a water seepage channel, so that the integral moisture prevention of the wire cores 1 can be realized. Wherein, the gap in the inboard space of 2 inboard spaces of water-blocking tapes is carried out the clearance with packing rope 3 and is filled, makes the cable durable, avoids each sinle silk 1 to move the position.

After the outer side of the water blocking tape 2 is coated by the inner protection layer 4, the steel wire armor 5 is additionally arranged outwards, and the steel wire armor 5 is used for forming metal protection, so that the cable becomes a bendable solid combined body, and the mechanical properties of stretching resistance and the like of the cable are realized. The inner sheath layer 4 is also made of cross-linked polyethylene, so that the abrasion resistance of the inner sheath layer is utilized to prevent the steel wire armor 5 from wearing the water-blocking tape 2, and the high-temperature resistance and flame retardance of the inner sheath layer are utilized to improve the fire-proof grade of the cable.

An outer sheath 6 wraps the outer layer of the steel wire armor 5, the outer sheath 6 serves as the outermost layer of the cable and is made of cross-linked polyvinyl chloride, and the steel wire armor has mechanical properties such as shock resistance, wear resistance and the like, has excellent oil resistance, strong acid resistance and strong alkali resistance, and can enhance the corrosion resistance of the cable.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the protection scope of the present application, and although the present application is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present application without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. The utility model provides a compound high heat conduction polyvinyl chloride sheath signal cable of graphite alkene which characterized in that:

the cable comprises a plurality of cable cores, wherein each cable core is provided with an aluminum conductor, a graphene conducting layer, an insulating layer, a graphene shielding layer and an inner sheath which are sequentially coated from inside to outside, the graphene shielding layer is arranged in a grounding manner, and the inner sheath is made of universal polyvinyl chloride;

the cable is characterized by further comprising a wrapping belt, a filling rope and an outer sheath located on the outer side of the cable, wherein the wire cores are wrapped by the wrapping belt after being gathered together, the filling rope fills the hollow gap on the inner side of the wrapping belt, the outer sheath is made of cross-linked polyvinyl chloride, and the cross-linked polyvinyl chloride is wrapped on the outer side of the wrapping belt.

2. The graphene composite high thermal conductivity polyvinyl chloride sheath signal cable according to claim 1, characterized in that: the insulating layer is made of crosslinked polyethylene.

3. The graphene composite high thermal conductivity polyvinyl chloride sheath signal cable according to claim 1, characterized in that: the wrapping tape is a water-blocking tape.

4. The graphene composite high thermal conductivity polyvinyl chloride sheath signal cable according to claim 1 or 3, wherein: and a steel wire armor is arranged between the wrapping tape and the outer sheath.

5. The graphene composite high thermal conductivity polyvinyl chloride sheath signal cable of claim 4, wherein: the outside cladding of band has interior sheath, and interior sheath pastes and connects the steel wire armor.

6. The graphene composite high thermal conductivity polyvinyl chloride sheath signal cable of claim 5, wherein: the inner protective layer is made of crosslinked polyethylene.