CN212303134U - Cross-linked polyethylene insulation low-smoke halogen-free shielding computer cable - Google Patents

Abstract

The utility model provides a cross-linked polyethylene insulation low smoke and zero halogen shielding computer cable, including cable inner core, elastic skeleton, outer shielding layer, inner sheath, armor and oversheath, the cable inner core is provided with a plurality ofly, and each cable inner core all comprises two pairs of conductors twisted in pairs, insulating layer and pair twist shielding layer, the conductor is equipped with the insulating layer outward, and the outside cladding of insulating layer has pair twist shielding layer; the cable comprises an elastic framework, and is characterized in that a plurality of isolation belts are arranged on the elastic framework and distributed in an annular array manner, a central cavity and a marginal cavity are formed between the centers of the isolation belts and two adjacent isolation belts respectively, any one of the cable inner cores is arranged in the central cavity, the rest cable inner cores are uniformly distributed around the cable inner cores arranged in the central cavity and are located in the marginal cavity, wrapping belts are wound on the peripheries of the cable inner cores and the elastic framework, and an outer shielding layer, an inner sheath, an armor layer and an outer sheath are sequentially arranged outside the wrapping belts.

Description

Cross-linked polyethylene insulation low-smoke halogen-free shielding computer cable

Technical Field

The utility model relates to the technical field of cables, indicate a cross-linked polyethylene insulation low smoke and zero halogen shielding computer cable especially.

Background

The computer cable belongs to a cable for electrical equipment, and is suitable for electronic computers and automatic instruments with the rated voltage of 500V or below and higher requirement on interference resistance. At present, computer cables are widely used in computer systems or automation devices for detection and control in power generation, metallurgy, petroleum, chemical engineering, light textile and other departments, and in general industrial computers.

The existing computer cable has the problems of poor strength performance, poor anti-interference performance, insufficient service life and the like, thereby influencing the use of the cable.

Therefore, the utility model provides an insulating low smoke and zero halogen shielding computer cable of crosslinked polyethylene to solve the problem that above-mentioned exists.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's shortcoming, provide a low smoke and zero halogen shielding computer cable of crosslinked polyethylene insulation.

In order to solve the technical problem, the utility model provides a following technical scheme: a cross-linked polyethylene insulated low-smoke halogen-free shielded computer cable comprises a plurality of cable inner cores, an elastic framework, an outer shielding layer, an inner sheath, an armor layer and an outer sheath, wherein each cable inner core consists of a conductor, an insulating layer and a twisted-pair shielding layer which are twisted in pairs, the insulating layer is arranged outside the conductor, and the twisted-pair shielding layer is wrapped outside the insulating layer; the cable comprises an elastic framework, and is characterized in that a plurality of isolation belts are arranged on the elastic framework and distributed in an annular array manner, a central cavity and a marginal cavity are formed between the centers of the isolation belts and two adjacent isolation belts respectively, any one of the cable inner cores is arranged in the central cavity, the rest cable inner cores are uniformly distributed around the cable inner cores arranged in the central cavity and are located in the marginal cavity, wrapping belts are wound on the peripheries of the cable inner cores and the elastic framework, and an outer shielding layer, an inner sheath, an armor layer and an outer sheath are sequentially arranged outside the wrapping belts.

As an optimized technical scheme, be provided with a plurality of elastomers in the central cavity of elasticity skeleton, a plurality of elastomers evenly distributed are on the inside wall of central cavity, and every elastomer all comprises kicking block and elastic component.

As an optimized technical scheme of the utility model, the median is "X" shape structure, and its inside cavity setting that is has set firmly a body and No. two bodies around the inside of the median of cavity "X" shape structure respectively.

As an optimized technical scheme of the utility model, the conductor is formed by the transposition of many tin-plated thin copper wires.

As an optimized technical proposal of the utility model, the inner sheath and the outer sheath are both made of polyolefin materials.

As a preferred technical solution of the present invention, the insulating layer is made of a cross-linked polyethylene material.

As an optimized technical scheme of the utility model, the elastomer sets firmly on the inside wall of central cavity between two median.

The utility model discloses the beneficial effect who reaches is:

1. the utility model provides a cross-linked polyethylene insulating low smoke and zero halogen shielding computer cable, through the elasticity skeleton that sets up, greatly increased computer cable's compressive property, rethread elasticity skeleton centre and the central cavity and the marginal cavity that the edge set up, can carry on spacingly to the cable inner core, make the position between the cable inner core difficult to take place to move, non-deformable to improve computer cable inner structure's stability, increase the intensity of cable, prolonged computer cable's life;

2. the utility model provides a cross-linked polyethylene insulation low smoke zero halogen shielding computer cable, through the pair twist shielding layer and the outer shielding layer that set up, the anti-interference ability of computer cable has been improved effectively;

3. the utility model provides a pair of insulating low smoke and zero halogen shielding computer cable of crosslinked polyethylene through elastomer, the projectile body and the projectile body No. two that set up, makes to have flexible space between cable inner core and elasticity skeleton and the band layer, can compensate the cable because the volume change that expend with heat and contract with cold produced to computer cable's life has been prolonged.

The present invention will be described in more detail with reference to the accompanying drawings and examples.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the elastic frame structure of the present invention;

FIG. 3 is an enlarged schematic view of A in FIG. 2 according to the present invention;

fig. 4 is an enlarged schematic view of b in fig. 2 according to the present invention;

reference numbers in the figures: 1. an elastic skeleton; 2. an outer shield layer; 3. an inner sheath; 4. an armor layer; 5. an outer sheath; 6. an isolation zone; 7. a central cavity; 8. a rim cavity; 9. a belting layer; 10. a conductor; 11. an insulating layer; 12. a twisted-pair shielding layer; 13. a top block; 14. an elastic member; 15. a first projectile body; 16. a second projectile.

Detailed Description

The terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like in the specification indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b): as shown in fig. 1-4, the utility model provides a cross-linked polyethylene insulating low smoke and zero halogen shielding computer cable, including cable inner core, elastic skeleton 1, outer shielding layer 2, inner sheath 3, armor 4 and oversheath 5, the cable inner core is provided with a plurality ofly, and each cable inner core all comprises two liang of twisted-pair conductor 10, insulating layer 11 and twisted-pair shielding layer 12, be equipped with insulating layer 11 outside conductor 10, the outside cladding of insulating layer 11 has twisted-pair shielding layer 12; the elastic framework 1 is provided with a plurality of isolation belts 6, the isolation belts 6 are distributed in an annular array, a central cavity 7 and a marginal cavity 8 are respectively formed between the center of each isolation belt 6 and two adjacent isolation belts 6, any one of the cable cores is arranged in the central cavity 7, and the rest cable cores are uniformly distributed around the cable cores arranged in the central cavity 7 and are positioned in the marginal cavity 8, so that the cable cores are limited, the positions among the cable cores are not easy to move and deform, the stability of the internal structure of the computer cable is improved, and the strength of the cable is increased; the cable comprises a plurality of cable inner cores and an elastic framework 1, wherein the periphery of the plurality of cable inner cores and the elastic framework 1 is wrapped with a belting layer 9, and an outer shielding layer 2, an inner sheath 3, an armor layer 4 and an outer sheath 5 are sequentially arranged outside the belting layer 9.

Furthermore, a plurality of elastic bodies are arranged in the central cavity 7 of the elastic framework 1 and are uniformly distributed on the inner side wall of the central cavity 7, and each elastic body is composed of a top block 13 and an elastic part 14, so that a telescopic gap is formed between the cable inner core and the elastic framework 1, the volume change of the cable caused by expansion with heat and contraction with cold can be compensated, and the service life of the computer cable is prolonged.

Furthermore, the isolation belt 6 is of an X-shaped structure, the interior of the isolation belt is hollow, a first elastic body 15 and a second elastic body 16 are fixedly arranged in the front of and behind the interior of the isolation belt 6 of the hollow X-shaped structure respectively, so that a telescopic gap is formed between the cable inner core and the elastic framework 1, the volume change of the cable caused by expansion with heat and contraction with cold can be compensated, and the service life of the computer cable is prolonged.

Further, the conductor 10 is formed by stranding a plurality of tin-plated fine copper wires.

Further, the inner sheath 3 and the outer sheath 5 are both made of polyolefin material.

Further, the insulating layer 11 is made of a cross-linked polyethylene material.

Furthermore, the elastic body is fixedly arranged on the inner side wall of the central cavity 7 between the two isolation belts 6.

The above embodiments are merely to describe the preferred embodiments of the present invention, and are not to limit the scope of the present invention, and various modifications and improvements made by the technical solutions of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.

The utility model discloses the part that does not relate to all is the same with prior art or can adopt prior art to realize.

Claims (7)

1. A cross-linked polyethylene insulated low-smoke halogen-free shielding computer cable comprises a cable inner core, an elastic framework (1), an outer shielding layer (2), an inner sheath (3), an armor layer (4) and an outer sheath (5), and is characterized in that the cable inner core is provided with a plurality of cable inner cores, each cable inner core is composed of a conductor (10), an insulating layer (11) and a twisted-pair shielding layer (12), the conductor (10) is externally provided with the insulating layer (11), and the outside of the insulating layer (11) is coated with the twisted-pair shielding layer (12); be equipped with a plurality of median (6) on elastic skeleton (1), a plurality of median (6) are the annular array and distribute, form central cavity (7) and marginal cavity (8) respectively between the center of a plurality of median (6) and two adjacent median (6), and is a plurality of wherein arbitrary one of cable inner core sets up in central cavity (7), and remaining cable inner core evenly distributed around setting up in central cavity (7) lies in marginal cavity (8), the periphery of a plurality of cable inner cores and elastic skeleton (1) is wrapped there is band layer (9), and the outside of band layer (9) is equipped with outer shielding layer (2), inner sheath (3), armor (4) and oversheath (5) in proper order.

2. The computer cable as claimed in claim 1, wherein a plurality of elastomers are disposed in the central cavity (7) of the elastic skeleton (1), the elastomers are uniformly distributed on the inner sidewall of the central cavity (7), and each elastomer is composed of a top block (13) and an elastic member (14).

3. The cross-linked polyethylene insulated low-smoke zero-halogen shielding computer cable according to claim 1, characterized in that the isolation belt (6) is of an X-shaped structure, the inside of the isolation belt is hollow, and a first elastomer (15) and a second elastomer (16) are respectively and fixedly arranged in front of and behind the inside of the isolation belt (6) of the hollow X-shaped structure.

4. The cross-linked polyethylene insulated low smoke zero halogen shielded computer cable according to claim 1, wherein said conductor (10) is stranded of a plurality of tin-plated fine copper wires.

5. A cross-linked polyethylene insulated low smoke zero halogen shielded computer cable according to claim 1, characterized in that said inner sheath (3) and said outer sheath (5) are made of polyolefin material.

6. A cross-linked polyethylene insulated low smoke zero halogen shielded computer cable according to claim 1, characterized in that said insulation layer (11) is made of cross-linked polyethylene material.

7. The cross-linked polyethylene insulated low smoke zero halogen shielded computer cable according to claim 2, wherein the elastomer is fixedly arranged on the inner side wall of the central cavity (7) between the two isolation belts (6).

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