CN208570186U

CN208570186U - A kind of armouring copper core polyethylene-insulated power cable

Info

Publication number: CN208570186U
Application number: CN201821025807.0U
Authority: CN
Inventors: 潘学权
Original assignee: Hongze Jiangsu Cable Co Ltd
Current assignee: Hongze Jiangsu Cable Co Ltd
Priority date: 2018-06-30
Filing date: 2018-06-30
Publication date: 2019-03-01
Anticipated expiration: 2028-06-30

Abstract

A kind of armouring copper core polyethylene-insulated power cable, including outer pack assembly, several bunchs of cables, intraformational bed and binding strap, every three bunchs of cables constitute a cable group and are bound together by the binding strap, the outer pack assembly is wrapped in the outside of the cable group, the cable group uniform ring is disposed with external sheath layer, armor, buffer layer, outer fire resistant layer, external shielding layer, external insulation layer around the outside for being arranged in the intraformational bed, the outer pack assembly ecto-entad；The cable interior design of the utility model has larger cavity, and the heat that cable core generates timely can dissipate；A part of heat that cable core generates can cooling mechanism rapid divergence by being arranged in bunch of cables into the gap between binding strap and bunch of cables, prevent cable core because can not catching fire caused by rapid cooling.

Description

A kind of armouring copper core polyethylene-insulated power cable

Technical field

The utility model relates to a kind of cables, and in particular to a kind of armouring copper core polyethylene-insulated power cable.

Background technique

Cable is common electric conductor in daily life, and electric power or information are transferred to another place from one, currently, with The development of society, electricity consumption is more and more, and the requirement to cable is also higher and higher, when cable passes through certain load current, one Surely it can generate heat, with the increase of load current in cable, cable surface temperature is higher, without good heat dissipation inside cable When mechanism, the temperature inside cable can be higher and higher, after reaching certain temperature, it is possible to since heat dissipation leads to fire not in time Calamity causes Loss of Life and property, and traditional cable can be generally filled inside cable by inorganic material in production, general Inorganic material heating conduction is poor, is unfavorable for radiating, and sometimes, in order to reach heat dissipation effect, can generally reduce cable core protective layer Thickness reaches heat dissipation effect, but will increase the possibility of cable bad.

Summary of the invention

To solve the above problems, the utility model provides a kind of armouring copper core polyethylene-insulated power cable, mainly solve The problem of be the problems such as existing common cable heat dissipation effect is poor, and cable flexibility is bad.

The technical scheme adopted by the utility model is a kind of armouring copper core polyethylene-insulated power cable, including outsourcing Component, several bunchs of cables, intraformational bed and binding strap, every three bunchs of cables constitute a cable group and are tied up by the binding strap It binds together, the outer pack assembly is wrapped in the outside of the cable group, and the cable group uniform ring is around being arranged in the inner clip The outside of layer, the outer pack assembly ecto-entad are disposed with external sheath layer, armor, buffer layer, outer fire resistant layer, external shield Layer, external insulation layer, the bunch of cables are disposed with inner restrictive coating, interior flame-retardant layer, internal shield, heat dissipating layer, interior from inside to outside Insulating layer, cable core, the cable further include several fill assemblies, a portion filling block be filled in the binding strap with In gap between outer pack assembly, another part filling block is filled in the gap between bunch of cables and binding strap, the cable Core is that more copper wires are entwined.

As the further preferred of the utility model, the intraformational bed is equipped with the arc cooperated with binding strap outer surface Slot, the intraformational bed are made of heat conductive insulating elastomeric material.

As the further preferred of the utility model, a heat-conducting mechanism is equipped in each bunch of cables, it is described thermally conductive Mechanism setting in inner insulating layer outer surface, and the heat-conducting mechanism sequentially pass through the heat dissipating layer, internal shield, interior flame-retardant layer and It is extend into after inner restrictive coating in the gap between bunch of cables and binding strap.

As the further preferred of the utility model, the heat-conducting mechanism includes four thermally conductive sheets, and the thermally conductive sheet is by leading Thermal Ceramics are made.

As the further preferred of the utility model, the external sheath layer is made of high abrasion pvc sheathing compound.

As the further preferred of the utility model, the armor includes armouring part and wrapping layer, and the armouring part is adopted It is designed with flat copper wire, the armouring part is twisted by the copper wire of several rectangular in cross-section, and armouring part surface is zinc-plated, institute Wrapping layer is stated to be made of polyester belt.

As the further preferred of the utility model, the buffer layer is made of multiple shock struts, and described adjacent two subtract It shakes and constitutes "eight" shape shape between pillar, the shock strut is made of silicon rubber.

As the further preferred of the utility model, the fill assembly is made of heat conductive insulating elastomeric material.

As the further preferred of the utility model, the interior flame-retardant layer and outer fire resistant layer are by the two-sided mica of compound fluorine gold Band bilayer is wrapped to be formed.

As the further preferred of the utility model, the external insulation layer and inner insulating layer are by cross-linked polyethylene insulating material It is made, the shielded layer uses section to work out for circular copper wire.

The utility model has the beneficial effects that the cable interior design of (1) the utility model has larger cavity, cable core is produced Raw heat timely can dissipate；(2) a part of heat that cable core generates can be by being arranged in bunch of cables Cooling mechanism rapid divergence prevents cable core because that can not cause due to rapid cooling into the gap between binding strap and bunch of cables Catching fire；(3) fill assembly and intraformational bed are made of heat conductive insulating elastomeric material, and one side can be played to electricity The effect that cable group is reinforced, it is another due to spontaneous excellent heating conduction, the heat inside cable can be further speeded up and shed, together When, heat conductive insulating elastomeric material quality is softer, can play to cable core shock absorbing effect；(4) buffer layer is abundant Consider the external force that cable may be subject to, slows down impact of the external force to cable.

Detailed description of the invention

Fig. 1 is the overall structure diagram of the weighing balance of the utility model；

Fig. 2 is the cable group structural schematic diagram of the utility model；

Fig. 3 is the inner clip schematic diagram of a layer structure of the utility model；

Fig. 4 is the fill assembly structural schematic diagram of the utility model.

Specific embodiment

The utility model is further described below in conjunction with Figure of description and specific preferred embodiment, but not because This and limit the protection scope of the utility model.

As shown in Figs. 1-2, the present embodiment the technical scheme adopted by the utility model is kind armouring copper core polyethylene it is exhausted Edge power cable, including outer pack assembly 1, several bunchs of cables 2, intraformational bed 3 and binding strap 4, every three bunchs of cables 2 constitute an electricity Cable group simultaneously by the binding strap 4 binding together, outer pack assembly 1 is wrapped in the outside of the cable group, cable group uniform ring around It is arranged in the outside of the intraformational bed 3, outer 1 ecto-entad of pack assembly is disposed with external sheath layer 11, armor 12, buffer layer 13, outer fire resistant layer 14, external shielding layer 15, external insulation layer 16, bunch of cables 2 are disposed with inner restrictive coating 21, internal resistance from inside to outside Layer 22, internal shield 23, heat dissipating layer 24, inner insulating layer 25, cable core 26 are fired, cable further includes several fill assemblies 5, wherein A part of filling block is filled in the gap between the binding strap 4 and outer pack assembly 1, and another part filling block is filled in cable In gap between beam 2 and binding strap 4, cable core 26 is that more copper wires are entwined, the cable interior design of the present embodiment There is larger cavity, the heat that cable core generates timely can dissipate.

As shown in figs. 1 and 3, specifically, intraformational bed 3 is equipped with the arc groove 31 cooperated with binding strap outer surface, intraformational bed 3 It is made of heat conductive insulating elastomeric material, the intraformational bed 3, fill assembly 5 and outer pack assembly structure 1, can at position-limit mechanism Effectively fix cable group, wherein heat conductive insulating elastic rubber uses silicon rubber substrate, the ceramic particles such as boron nitride, aluminium oxide For filler, heat-conducting effect is very good, and under equal conditions, thermal impedance is less than other Heat Conduction Materials, has soft, clean, nothing The characteristics of pollution and radioactivity, high-insulativity, glass fibre reinforcing provide good mechanical performance, being capable of anti-puncture, shearing resistance It cuts, tear-proof, buffering external force can be played in the cable of the utility model and accelerates the functions such as rate of heat dispation.

As shown in Fig. 2, the heat-conducting mechanism is arranged in interior insulation specifically, being equipped with a heat-conducting mechanism in each bunch of cables 26 outer surface of layer, and the heat-conducting mechanism sequentially passes through heat dissipating layer 24, internal shield 23, interior flame-retardant layer 22 and inner restrictive coating 21 and extendes back Enter into the gap between bunch of cables 2 and binding strap 4, heat-conducting mechanism includes four thermally conductive sheets 27, which is not limited to make Be made of thermal conductive ceramic, be also possible to copper, in other embodiments, the thermally conductive sheet be other metals or nonmetallic materials, such as Aluminium alloy, graphite etc., the cooling fin 27 itself have excellent heating conduction, and since it is close to cable core 26, energy It is enough that quickly the heat that cable core 26 generates timely is dispersed into the gap between bunch of cables 2 and binding strap 4, prevent electricity Lead to cable catching fire since heat aggregation is excessive at 26 position of cable core.

Further, external sheath layer 11 and inner restrictive coating 21 are made of high abrasion pvc sheathing compound, can allow electricity Cable surface during dragging keeps smooth, after preventing cable from installing, is destroyed inside the exposed cable of breakage by environmental corrosion.

Further, armor 12 includes armouring part 122 and wrapping layer 121, and armouring part 122 is designed using flat copper wire, Armouring part 122 is twisted by the copper wire of several rectangular in cross-section, and 122 surface of armouring part is zinc-plated, and wrapping layer 121 is by polyester belt system At in general, polyester belt can be 200 DEG C of heatproof, and have stronger electrical insulation properties, copper wire armored is to increase cable Tensile strength and external force crush injury, to prevent in cable core insulation because of the damage of the mechanical external forces such as construction.

As shown in Figure 1, specifically, buffer layer 13 is made of multiple shock struts 131, between adjacent two shock strut 131 Constitute "eight" shape shape, shock strut 131 is made of silicon rubber, for buffering impact of the external force to cable, spinning prevent cable because It deforms under external force or the phenomenon that internal separation, guarantees the stability of cable work, fill assembly 5 is by heat conductive insulating Elastomeric material is made, and major function is above-mentioned have been described, and details are not described herein.

In the present embodiment, interior flame-retardant layer 22 and outer fire resistant layer 14 are formed by the two-sided mica tape bilayer of compound fluorine gold is wrapped, Wherein, the wrapping angle of the two-sided mica tape of compound fluorine gold is controlled at 40-45 °, and wrapped bilayer puts up green 50%, closely around leading This kind of mica tape on body can generate the hard insulation project silica of insoluble white, external insulation layer after meeting fire burning 16 and inner insulating layer 25 be made of cross-linked polyethylene insulating material, external shielding layer 15 and internal shield 23 use section to be circular Copper wire is worked out, and internal shield can effectively control the electromagnetism occurred between bunch of cables and electrostatic interference, and external shielding layer The electromagnetism and electrostatic interference inside outer bound pair cable can effectively be controlled.

As described above, although the utility model has been indicated and described referring to specific preferred embodiment, it must not It is construed to the limitation to the utility model itself, in the spirit and scope for not departing from the utility model that appended claims define Under the premise of, various combination variations can be made on device form and in details to it.

Claims

1. a kind of armouring copper core polyethylene-insulated power cable, including outer pack assembly, several bunchs of cables, intraformational bed and binding strap, Every three bunchs of cables constitute a cable group and are bound together by the binding strap, and the outer pack assembly is wrapped in described The outside of cable group, the cable group uniform ring around the outside for being arranged in the intraformational bed, the outer pack assembly ecto-entad according to Secondary to be provided with external sheath layer, armor, buffer layer, outer fire resistant layer, external shielding layer, external insulation layer, the bunch of cables is from inside to outside It is disposed with inner restrictive coating, interior flame-retardant layer, internal shield, heat dissipating layer, inner insulating layer, cable core, which is characterized in that described Cable further includes several fill assemblies, and a portion filling block is filled in the gap between the binding strap and outer pack assembly In, another part filling block is filled in the gap between bunch of cables and binding strap, and the cable core is more copper wire windings It forms.

2. a kind of armouring copper core polyethylene-insulated power cable according to claim 1, which is characterized in that the intraformational bed It is equipped with the arc groove cooperated with binding strap outer surface, the intraformational bed is made of heat conductive insulating elastomeric material.

3. a kind of armouring copper core polyethylene-insulated power cable according to claim 1, which is characterized in that each electricity A heat-conducting mechanism is equipped in cable beam, the heat-conducting mechanism is arranged in inner insulating layer outer surface, and the heat-conducting mechanism is successively worn It is extend into the gap between bunch of cables and binding strap after crossing the heat dissipating layer, internal shield, interior flame-retardant layer and inner restrictive coating.

4. a kind of armouring copper core polyethylene-insulated power cable according to claim 3, which is characterized in that the thermally conductive machine Structure includes four thermally conductive sheets, and the thermally conductive sheet is made of thermal conductive ceramic.

5. a kind of armouring copper core polyethylene-insulated power cable according to claim 1, which is characterized in that the oversheath Layer is made of high abrasion pvc sheathing compound.

6. a kind of armouring copper core polyethylene-insulated power cable according to claim 1, which is characterized in that the armor Including armouring part and wrapping layer, the armouring part using flat copper wire design, the armouring part by several rectangular in cross-section copper Silk is twisted, and armouring part surface is zinc-plated, and the wrapping layer is made of polyester belt.

7. a kind of armouring copper core polyethylene-insulated power cable according to claim 1, which is characterized in that the buffer layer It is made of multiple shock struts, "eight" shape shape is constituted between adjacent two shock strut, the shock strut is by silicon rubber It is made.

8. a kind of armouring copper core polyethylene-insulated power cable according to claim 1, which is characterized in that the filling group Part is made of heat conductive insulating elastomeric material.

9. a kind of armouring copper core polyethylene-insulated power cable according to claim 1, which is characterized in that described interior fire-retardant Layer and outer fire resistant layer are formed by the two-sided mica tape bilayer of compound fluorine gold is wrapped.

10. a kind of armouring copper core polyethylene-insulated power cable according to claim 1, which is characterized in that described outer exhausted Edge layer and inner insulating layer are made of cross-linked polyethylene insulating material, the shielded layer use section for circular copper wire is worked out and At.