CN203673846U - Cable containing precision metal wires and plastic material which can become ceramic in burning - Google Patents

Abstract

The utility model relates to a cable containing precision metal wires and a plastic material which can become ceramic in burning. The cable comprises a triangle star-shaped support, precision metal wire cores, insulating layers, a plastic material layer which can become ceramic in burning, a cable inner protection layer, a calcium oxide layer and a cable outer sheath layer. The triangle star-shaped support supports the whole cable and separates the three precision metal wire cores. Each insulating layer coats one of the precision metal wire cores. The plastic material layer fills gaps between the triangle star-shaped support and the precision metal wire cores. The cable inner protection layer is attached to the precision metal wire cores. The calcium oxide layer is attached to the cable inner protection layer. The cable outer sheath layer is attached to the calcium oxide layer. Each precision metal wire core is formed by stranding main wires, edge gap wires and middle gap wires. Cross sections of the main wires, the middle gap wires and the edge gap wires are round. The cable is effectively improved in conductivity and fireproof performance.

Description

Contain the cable that precision metallic wire rod and burning can ceramic plastic materials

Technical field

The utility model relates to cable technology field, relates to or rather a kind of cable that contains precision metallic wire rod and burning can ceramic plastic material.

Background technology

Cable conduction is realized by metal material, cable metal material is to be that circular metal wire rod spiral winding is made by many sliver transvers sections, by extrusion die, multiply metal wire rod is extruded distortion, twists cross section processed and be the strand structure processed of the shapes such as fan-shaped, watt shape, circle.Circular metal wire rod strand is built in together, in the middle of adjacent wire rod, can there is space, because space can cause metal wire rod chap, the outer jacket of outside and the material usage of cao layers also increase thereupon, cause cable to become heavily chap, improve cable cost, improved logistics cost, increased difficulty of construction.Edge at cable with metal material, the cross section of metal wire rod is rounded, and edge just there will be the irregularly shaped of fluctuating, and in high-tension environment for use, the projection at edge easily causes point discharge, causes accident.On the other hand, in the middle of adjacent wire rod, can there is space, can hinder electric current flowing between adjacent wire, weaken the electric conductivity of metal material, in cable, the gap of conductor is plastic material, plastic material volume in combustion process can dwindle and powder, can make to come in contact and cause short circuit between adjacent conductor, like this, often fire and short circuit become two positive correlation factors in cable fault process, that is to say, fire causes short circuit, short circuit simultaneously causes again fire, and both promote by mutual forward.

As can be seen here, above-mentioned existing cable still has many defects, and is urgently improved.

Because the defect that above-mentioned existing cable exists, the design people is based on being engaged in this type of product design manufacture for many years, amass and have abundant practical experience and professional knowledge, actively research and innovation in addition, to founding a kind of cable that contains precision metallic wire rod and burning can ceramic plastic material, can improve the general molding structure of existing cable on the market, make it have more competitiveness.Through constantly research, design, and after repeatedly studying sample and improving, finally create the utility model having practical value.

Summary of the invention

Technical problem underlying to be solved in the utility model is, overcomes the defect that existing cable exists, and improves tightness degree and the electric conductivity of cable, overcomes fire in existing cable and causes short circuit, short circuit simultaneously to cause again the defect of fire.

The utility model solves its technical problem underlying and realizes by the following technical solutions.According to a kind of cable that contains precision metallic wire rod and burning can ceramic plastic material the utility model proposes, comprise triangle star supporter, precision metallic wire rod inner core, insulating barrier, burning can ceramic plastic material layer, cable sheath, cao layers and cable jacket layer, the whole cable of triangle star support body supports is also separated three precision metallic wire rod inner cores, insulating barrier parcel precision metallic wire rod inner core, the space of triangle star supporter and precision metallic wire rod inner core can ceramic plastic material layer be filled in burning, cable sheath is close to precision metallic wire rod inner core, cao layers is close to cable sheath, cable jacket layer is close to cao layers, precision metallic wire rod inner core is made up of strand wire strand system, precision metallic wire rod inner core is by electric main, edge voids electric wire and intermediate gaps electric wire strand system composition, electric main cross section is rounded, intermediate gaps wire cross-section is rounded, intermediate gaps electric wire is positioned at the position, space of adjacent three electric mains, edge voids electric wire is rounded, edge voids electric wire is positioned at the position, space of the electric main of adjacent two edges edge.

The cable that contains precision metallic wire rod and burning can ceramic plastic material described in the utility model, the beneficial effect of its generation is: triangle star supporter is a kind of glass fiber compound material skeleton, in the time of breaking out of fire, play the effect of supporting and isolating, can ensure not bump not by short circuit between each core simultaneously, triangle star structure can play good flexible effect, guarantees that supporter can not affect the flexibility of cable; Burning can adopt the burning silastic material of ceramic afterwards by ceramic plastic material layer, and this material shows the flexility of plastic material under normal operation, silicon rubber ceramic after burning, and volume can not subside, and therefore can play a supporting role; The material of cao layers is calcium oxide, using after certain time limit, and the outside plastic material breakage of cable, calcium oxide is absorbing after water and carbon dioxide and can harden, and plays and extends the cable effect of service life; In precision metallic wire rod inner core strand process processed, can there is corresponding deformation in each strand of electric wire, space between each strand material is further reduced, adopt the position, space of adjacent three electric mains of intermediate gaps wire pair to fill, effectively improve the tightness degree of metal material, and then improved the electric conductivity of cable, and adopt the position, space of the electric main of edge voids wire pair adjacent two edges edge to fill, effectively improve the smooth of the edge degree of metal wire rod strand structure processed.

Brief description of the drawings

Fig. 1 is the schematic cross-section of embodiment of the present utility model.

Fig. 2 is the schematic cross-section of precision metallic wire rod inner core of the present utility model.

Description of reference numerals: 1, precision metallic wire rod inner core; 2, insulating barrier; 3, burning can ceramic plastic material layer; 4, cable sheath; 5, cao layers; 6, cable jacket layer; 7, electric main; 8, edge voids electric wire; 9, intermediate gaps electric wire; 10, triangle star supporter.

Embodiment

Below in conjunction with accompanying drawing and preferred embodiment, to its embodiment, structure, feature and effect thereof according to the utility model proposes, be described in detail as follows.

Refer to shown in Fig. 1 and Fig. 2, a kind of cable that contains precision metallic wire rod and burning can ceramic plastic material of the present utility model, comprise triangle star supporter 10, precision metallic wire rod inner core 1, insulating barrier 2, burning can ceramic plastic material layer 3, cable sheath 4, cao layers 5 and cable jacket layer 6, triangle star supporter 10 supports whole cable and separates three precision metallic wire rod inner cores 1, insulating barrier 2 wraps up precision metallic wire rod inner core 1, the space of triangle star supporter 10 and precision metallic wire rod inner core 1 can ceramic plastic material layer 3 be filled in burning, cable sheath 4 is close to precision metallic wire rod inner core 1, cao layers 5 is close to cable sheath 4, cable jacket layer 6 is close to cao layers 5, precision metallic wire rod inner core 1 is made up of strand wire strand system, precision metallic wire rod inner core 1 is by electric main 7, edge voids electric wire 8 and intermediate gaps electric wire 9 strand system compositions, electric main 7 cross sections are rounded, intermediate gaps electric wire 9 cross sections are rounded, intermediate gaps electric wire 9 is positioned at the position, space of adjacent three electric mains 7, edge voids electric wire 8 is rounded, edge voids electric wire 8 is positioned at the position, space of the electric main 7 of adjacent two edges edge.

The above, it is only preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction, any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all still belong in the scope of technical solutions of the utility model.

Claims (1)

1. contain the cable that precision metallic wire rod and burning can ceramic plastic materials, it is characterized in that, describedly contain the cable that precision metallic wire rod and burning can ceramic plastic material and comprise triangle star supporter, precision metallic wire rod inner core, insulating barrier, burning can ceramic plastic material layer, cable sheath, cao layers and cable jacket layer, the whole cable of described triangle star support body supports is also separated three precision metallic wire rod inner cores, described insulating barrier parcel precision metallic wire rod inner core, the space of triangle star supporter and precision metallic wire rod inner core can ceramic plastic material layer be filled in described burning, described cable sheath is close to precision metallic wire rod inner core, described cao layers is close to cable sheath, described cable jacket layer is close to cao layers, described precision metallic wire rod inner core is made up of strand wire strand system, described precision metallic wire rod inner core is by electric main, edge voids electric wire and intermediate gaps electric wire strand system composition, described electric main cross section is rounded, described intermediate gaps wire cross-section is rounded, described intermediate gaps electric wire is positioned at the position, space of adjacent three electric mains, described edge voids electric wire is rounded, described edge voids electric wire is positioned at the position, space of the electric main of adjacent two edges edge.

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