CN204348366U - Adopt the cable core of new material and new construction - Google Patents

Abstract

The utility model relates to a kind of cable core adopting new material and new construction, cross section is isosceles trapezoid, adopt the cable core of new material and new construction by conductive core line, puncture nail and ceramoplastic layer composition, conductive core line is wrapped up by ceramoplastic layer, conductive core line is made up of 15 strands of main cored wire conductors and ten strands of space cored wire conductors, from cross section, 12 strands of main cored wire conductors arrange along the four edges of isosceles trapezoid, three strands of main cored wire conductors are in the centre position of isosceles trapezoid, space cored wire conductor is positioned at the clearance position of main cored wire conductor, the position of continuous three puncture nails puncture is respectively the first puncture position, second puncture position and the 3rd puncture position.The beneficial effect that the utility model produces is: simplify the production technology of cable core and reduce cost, improve the fire resistance of cable.

Description

Adopt the cable core of new material and new construction

Technical field

The utility model relates to field of cable technology, relates to a kind of cable core adopting new material and new construction or rather.

Background technology

Cable core often adopts stranded conductor system of twisting to form, therefore need large-scale equipment carry out strand system, investment is large, costly, in addition, current cable core often adopts plastic material to wrap up, limit the application of cable under fire hazard environment, make cable inside often easily occur the phenomenon of short circuit, and then under the environment burnt, short circuit is often conducive to the expansion of the intensity of a fire, limits the application security of cable.

As can be seen here, above-mentioned existing cable heart yearn still existing defects, and urgently improved.

Summary of the invention

Technical problem underlying to be solved in the utility model is, overcomes the defect that existing cable core exists, and provides a kind of cable core adopting new material and new construction, overcome the defect of existing cable, improves the fire resistance of cable core.

The utility model solves its technical problem underlying and realizes by the following technical solutions.The cable core of the employing new material that foundation the utility model proposes and new construction, the cross section adopting the cable core of new material and new construction is isosceles trapezoid, adopt the cable core of new material and new construction by conductive core line, puncture nail and ceramoplastic layer composition, conductive core line is wrapped up by ceramoplastic layer, conductive core line is made up of 15 strands of main cored wire conductors and ten strands of space cored wire conductors, from cross section, 12 strands of main cored wire conductors arrange along the four edges of isosceles trapezoid, three strands of main cored wire conductors are in the centre position of isosceles trapezoid, space cored wire conductor is positioned at the clearance position of main cored wire conductor, the position of continuous three puncture nails puncture is respectively the first puncture position, second puncture position and the 3rd puncture position, at the first puncture position, article three, puncture nail is parallel to each other and direction along the parallel base of isosceles trapezoid is punctured through the main cored wire conductor being positioned at same linear position respectively, at the second puncture position, article two, puncture nail punctures through the main cored wire conductor of the hypotenuse being positioned at isosceles trapezoid respectively, , a parallel base for the vertical isosceles trapezoid of puncture nail, puncture through the main cored wire conductor of the symmetrical axis being positioned at isosceles trapezoid, at the 3rd puncture position, article three, the nail that punctures is parallel to each other and the direction on the parallel base of vertical isosceles trapezoid is punctured through the main cored wire conductor being positioned at same linear position respectively, second puncture position is between the first puncture position and the 3rd puncture position.

Better, above-mentioned puncture nail circular in cross-section, the fluted ring in surface of puncture nail.

Better, in the position of three puncture nails puncture of continuous adjacent, the longitudinal separation distance of puncture nail is 1.5 times to 3 times of the square root numerical value of conductive core line cross-sectional area.

Better, the A/F of above-mentioned groove ring is 0.05 times of the square root numerical value of conductive core line cross-sectional area to 0.09 times.

Better, the axis direction that the direction that above-mentioned puncture nail punctures extends perpendicular to conductor.

Better, above-mentioned puncture nail has sharp-pointed most advanced and sophisticated position.

Better, above-mentioned main cored wire conductor is made up of conductive copper wire system of twisting.

Better, above-mentioned space cored wire conductor is made up of conductive copper wire system of twisting.

The cable core of employing new material described in the utility model and new construction, its beneficial effect produced is: ceramoplastic is a kind of high temperature resistant baked wheaten cake and has good flexible new material, ceramoplastic is adopted to carry out conductive core line wrapping up the destruction that effectively can completely cut off and burn conductive core line, conductive core line adopts conductor composition arranged in parallel instead of strand system, this reduces the cost that strand operation processed is brought, it also avoid strand simultaneously and make the internal stress brought to conductive core line, the conductor burning Fracture is avoided to destroy outer field ceramoplastic owing to twisting the release of stress processed, with the fixing each stock conductor of puncture nail, the movement of conductor at horizontal direction can be retrained, conductor can be given again in longitudinally certain degree of freedom, so just can avoid the concentrated release at cable bend position stress, also conductor can be reduced to ceramoplastic stress, evade the defect of ceramoplastic be full of cracks.。

Accompanying drawing explanation

Fig. 1 is the schematic diagram of show cross section plane position of the present utility model.

Fig. 2 is that Fig. 1 is at the schematic cross-section of nail position A that do not puncture.

Fig. 3 is the schematic cross-section of Fig. 1 first puncture nail position B in three continuously puncture nail position.

Fig. 4 is the schematic cross-section of Fig. 1 second puncture nail position C in three continuously puncture nail position.

Fig. 5 is the schematic cross-section of Fig. 1 the 3rd puncture nail position D in three continuously puncture nail position.

Fig. 6 is the schematic diagram of puncture nail of the present utility model.

Description of reference numerals: 1, main cored wire conductor; 2, ceramoplastic layer; 3, puncture nail; 4, the opening of groove ring; 5, space cored wire conductor.

Embodiment

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

Refer to shown in Fig. 1 to Fig. 6, the cable core of employing new material of the present utility model and new construction, the cross section adopting the cable core of new material and new construction is isosceles trapezoid, adopt the cable core of new material and new construction by conductive core line, puncture nail 3 and ceramoplastic layer 2 form, conductive core line is wrapped up by ceramoplastic layer 2, conductive core line is made up of nine strands of main cored wire conductors 1 and four strands of space cored wire conductors 5, from cross section, the main cored wire conductor 1 of stereotyped writing arranges along the four edges of isosceles trapezoid, one main cored wire conductor 1 is in the center of isosceles trapezoid, space cored wire conductor 5 is positioned at the intermediate gaps position that four strands of main cored wire conductors 1 surround, in the position that same puncture nail 3 punctures, article three, the nail 3 that punctures is parallel to each other and direction along an isosceles trapezoid limit is punctured through three strands that are positioned at same linear position main cored wire conductors 1 respectively, the direction being positioned at the puncture nail 3 of the position of three puncture nails puncture of continuous adjacent is mutually vertical, puncture nail 3 circular in cross-section, the fluted ring in surface of puncture nail 3, in the position that two puncture nails 3 of continuous adjacent puncture, the longitudinal separation distance of puncture nail 3 is 1.5 times to 3 times of the square root numerical value of conductive core line cross-sectional area, opening 4 width of groove ring is 0.05 times of the square root numerical value of conductive core line cross-sectional area to 0.09 times, the axis direction that the direction that puncture nail 3 punctures extends perpendicular to conductor, puncture nail 3 has sharp-pointed most advanced and sophisticated position, main cored wire conductor 1 is made up of conductive copper wire system of twisting, space cored wire conductor 5 is made up of conductive copper wire system of twisting.

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

Claims (8)

1. adopt the cable core of new material and new construction, it is characterized in that: the cross section of the cable core of described employing new material and new construction is isosceles trapezoid, the cable core of described employing new material and new construction is by conductive core line, puncture nail and ceramoplastic layer composition, described conductive core line is wrapped up by ceramoplastic layer, described conductive core line is made up of 15 strands of main cored wire conductors and ten strands of space cored wire conductors, from cross section, 12 strands of main cored wire conductors arrange along the four edges of isosceles trapezoid, three strands of main cored wire conductors are in the centre position of isosceles trapezoid, described space cored wire conductor is positioned at the clearance position of main cored wire conductor, the position of continuous three puncture nails puncture is respectively the first puncture position, second puncture position and the 3rd puncture position, at the first puncture position, article three, puncture nail is parallel to each other and direction along the parallel base of isosceles trapezoid is punctured through the main cored wire conductor being positioned at same linear position respectively, at the second puncture position, article two, puncture nail punctures through the main cored wire conductor of the hypotenuse being positioned at isosceles trapezoid respectively, , a parallel base for the vertical isosceles trapezoid of puncture nail, puncture through the main cored wire conductor of the symmetrical axis being positioned at isosceles trapezoid, at the 3rd puncture position, article three, the nail that punctures is parallel to each other and the direction on the parallel base of vertical isosceles trapezoid is punctured through the main cored wire conductor being positioned at same linear position respectively, second puncture position is between the first puncture position and the 3rd puncture position.

2. the cable core of employing new material according to claim 1 and new construction, is characterized in that: described puncture nail circular in cross-section, the fluted ring in surface of described puncture nail.

3. the cable core of employing new material according to claim 1 and new construction, it is characterized in that: in the position of three puncture nails puncture of continuous adjacent, the longitudinal separation distance of described puncture nail is 1.5 times to 3 times of the square root numerical value of conductive core line cross-sectional area.

4. the cable core of employing new material according to claim 2 and new construction, is characterized in that: the A/F of described groove ring is 0.05 times of the square root numerical value of conductive core line cross-sectional area to 0.09 times.

5. the cable core of employing new material according to claim 1 and new construction, is characterized in that: the axis direction that the direction that described puncture nail punctures extends perpendicular to conductor.

6. the cable core of employing new material according to claim 1 and new construction, is characterized in that: described puncture nail has sharp-pointed most advanced and sophisticated position.

7. the cable core of employing new material according to claim 1 and new construction, is characterized in that: described main cored wire conductor is made up of conductive copper wire system of twisting.

8. the cable core of employing new material according to claim 1 and new construction, is characterized in that: described space cored wire conductor is made up of conductive copper wire system of twisting.