CN212113281U - Cross-linked polyethylene insulation low-smoke halogen-free computer cable - Google Patents

Abstract

The utility model discloses an insulating low smoke and zero halogen computer cable of crosslinked polyethylene, including a plurality of pencil, centre frame and surrounding layer, the pencil includes a plurality of electrically conductive cores, insulating cover and shielding layer, insulating cover parcel is on the surface of electrically conductive core, the surface at insulating cover is wrapped up in to the shielding layer, the centre of pencil is equipped with the centre frame, the pencil is the surface of annular fixed connection at the centre frame, the surface coating of pencil has the surrounding layer, the surrounding layer includes band, crosslinked polyethylene insulating layer and low smoke and zero halogen sheath, the band winding parcel is on the surface of pencil, the crosslinked polyethylene insulating layer is located the surface of band, low smoke and zero halogen sheath cup joints the surface at the crosslinked polyethylene insulating layer. The utility model discloses a center department at the pencil is equipped with the centre frame, conveniently fixes the pencil, improves the pencil stability each other, avoids the cable to shift or damage in the emergence of extrusion or the in-process of collision, improves the security that the cable used.

Description

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

Technical Field

The utility model relates to the technical field of cables, specifically a low smoke and zero halogen computer cable of crosslinked polyethylene insulation.

Background

In the last 60 years, traditional PVC insulated control cables and signal cables are adopted in large-scale engineering construction and automatic control systems, and the main functions of the traditional PVC insulated control cables and signal cables are to connect relays, circuit breakers, pointer instruments, signal lamps and the like. With the continuous development of automatic control, computer network and remote measuring and controlling technology, the cable is widely applied to the fields of power generation, metallurgy, mine, petrochemical industry, traffic, science and technology, national defense and the like, and is used as a cable for connecting a computer network (DCS), a detection device of an automatic control system and instruments. Due to the close connection between such cables and computer control systems, the names of the cables gradually evolve from "control and instrument cables", "data transmission control and instrument cables" and "control cables for computers" to "computer cables". Unlike computer network cables such as 5-, 6-and 7-cables for digital communication, computer cables generally fall under the category of electrical equipment wires, and are suitable for use in applications requiring high interference resistance, such as ac rated voltage 450/750V and dc rated voltage 1000V or less.

At present, many including many pencil in the computer cable in the market, because lack the structure of fixed stay between the pencil, lead to the cable to lead to the inner core to damage when receiving external force extrusion easily, bring the potential safety hazard in the use, and the outer rubber of cable can discharge toxic gas when the burning. For this reason, a new technical solution needs to be designed for solution.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an insulating low smoke and zero halogen computer cable of crosslinked polyethylene has solved that the sinle silk in the cable among the prior art lacks fixedly, and produces toxic gas's problem when the overcoat burns.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an insulating low smoke and zero halogen computer cable of crosslinked polyethylene, includes a plurality of pencil, centre frames and surrounding layer, the pencil includes a plurality of electrically conductive cores, insulating cover and shielding layer, insulating cover parcel is on the surface of electrically conductive core, the surface at insulating cover is wrapped up in to the shielding layer, the centre of pencil is equipped with the centre frames, the pencil is annular fixed connection on the surface of centre frames, the surface coating of pencil has the surrounding layer, the surrounding layer includes band, crosslinked polyethylene insulating layer and low smoke and zero halogen sheath, the band winding parcel is on the surface of pencil, the crosslinked polyethylene insulating layer is located the surface of band, low smoke and zero halogen sheath cup joints the surface at the crosslinked polyethylene insulating layer.

As an improvement of the technical scheme, the wrapping tape is obliquely and uniformly wrapped on the surface of the wire harness at an angle of 45 degrees, and the wrapping tape is uniformly wound on the surface of the wire harness in the clockwise direction.

As the improvement of the technical scheme, the cross-linked polyethylene insulating layer is embedded and connected with the drainage wire, and the drainage wire is annularly distributed at the edge of the outer side of the wire harness.

As an improvement of the technical scheme, the thickness of the crosslinked polyethylene insulating layer is 1.2-1.5mm, and the inside of the crosslinked polyethylene insulating layer is provided with uniformly distributed bubble holes.

As an improvement of the technical scheme, the end face of the center frame is triangular, the side edge of the center frame is provided with an arc-shaped groove, and the center of the center frame is provided with a hollow groove.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses a center department at the pencil is equipped with the centre frame, conveniently fixes the pencil, improves the stability of pencil each other, avoids the cable to shift or damage in the emergence of extrusion or the in-process of collision, improves the security of cable use, is equipped with low smoke and zero halogen sheath through the surface at the cable, reduces the toxic gas that discharges in the cable combustion process, improves the security of cable use.

Drawings

FIG. 1 is a schematic cross-sectional view of the cross-linked polyethylene insulated low smoke zero halogen computer cable of the present invention;

fig. 2 is the overall structure schematic diagram of the center frame of the present invention.

In the figure: the cable comprises a wire harness-1, a center frame-2, an outer cladding-3, a conductive core-4, an insulating sleeve-5, a shielding layer-6, a wrapping tape-7, a crosslinked polyethylene insulating layer-8, a low smoke zero halogen sheath-9, a drainage wire-10, a bubble hole-11, an arc-shaped groove-12 and a hollow groove-13.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides an insulating low smoke and zero halogen computer cable of crosslinked polyethylene, includes a plurality of pencil 1, centre frame 2 and surrounding layer 3, pencil 1 includes a plurality of electrically conductive cores 4, insulating cover 5 and shielding layer 6, insulating cover 5 parcel is on the surface of electrically conductive core 4, shielding layer 6 parcel is on the surface of insulating cover 5, the centre of pencil 1 is equipped with centre frame 2, pencil 1 is annular fixed connection on the surface of centre frame 2, the surface coating of pencil 1 has surrounding layer 3, surrounding layer 3 includes band 7, crosslinked polyethylene insulating layer 8 and low smoke and zero halogen sheath 9, band 7 twines the parcel on the surface of pencil 1, crosslinked polyethylene insulating layer 8 is located the surface of band 7, low smoke and zero halogen sheath 9 cup joints the surface at crosslinked polyethylene insulating layer 8.

Further improved, the wrapping tape 7 is uniformly wrapped on the surface of the wiring harness 1 in a 45-degree inclined mode, the wrapping tape 7 is uniformly wound on the surface of the wiring harness 1 in a clockwise mode, the wrapping tape 7 which is inclined by 45 degrees and wound in the clockwise mode is arranged on the surface of the wiring harness 1, and the tightness of connection between the wiring harness 1 is improved.

In a further improvement, as shown in fig. 1, the drainage wire 10 is embedded and connected in the crosslinked polyethylene insulating layer 8, the drainage wire 10 is annularly distributed at the outer edge of the wire harness 1, and the drainage wire 10 is embedded and connected in the crosslinked polyethylene insulating layer 8, so that the current interference in the cable conveying process is reduced.

In a further improvement, as shown in fig. 1, the thickness of the crosslinked polyethylene insulation layer 8 is 1.2-1.5mm, the crosslinked polyethylene insulation layer 8 is provided with uniformly distributed bubble holes 11 inside, and by providing uniformly distributed bubble holes 11 inside the crosslinked polyethylene insulation layer 8, the weight of the cable is reduced, and the flexibility of the cable is improved.

Specifically, as shown in fig. 2, the end face of the center frame 2 is triangular, the side of the end face is provided with an arc-shaped groove 12, the center of the center frame 2 is provided with a hollow groove 13, the arc-shaped groove 12 is provided on the side of the center frame 2, the wiring harnesses 1 are conveniently fixed, the connection stability between the wiring harnesses 1 is improved, the hollow groove 13 is provided in the center of the center frame 2, the weight of the center frame 2 is reduced, and the production cost is saved.

The utility model discloses a pencil-1, centre frame-2, surrounding layer-3, conductive core-4, insulating cover-5, shielding layer-6, band-7, crosslinked polyethylene insulating layer-8, low smoke and zero halogen sheath-9, drainage-10, bubble hole-11, arc wall-12, fretwork groove-13, the part is general standard component or the part that technical staff in this field know, its structure and principle all can be known through the technical manual or through conventional experimental method, the utility model discloses through being equipped with centre frame 2 in the center of pencil 1, conveniently fix pencil 1, improve pencil 1 stability each other, avoid the cable to shift or damage in the process of extrusion or collision, improve the security that the cable used, through be equipped with low smoke and zero halogen sheath 9 on the surface of cable, the toxic gas discharged in the cable combustion process is reduced, and the use safety of the cable is improved.

The utility model discloses when production, at the insulating cover of surface parcel 5 of electrically conductive core 4, place many electrically conductive cores 4 side by side and at its surface parcel shielding layer 6, accomplish the production of single pencil 1, place many pencil 1 in proper order on the surface of centre frame 2, use band 7 to wrap up pencil 1 and centre frame 2 fixedly, wrap up crosslinked polyethylene insulating layer 8 and low smoke and zero halogen sheath 9 in proper order on the surface of band 7 at last and can accomplish the production of cable.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (5)

1. The utility model provides an insulating low smoke and zero halogen computer cable of crosslinked polyethylene, includes a plurality of pencil (1), centre frame (2) and surrounding layer (3), its characterized in that: pencil (1) includes a plurality of conductive core (4), insulating cover (5) and shielding layer (6), insulating cover (5) parcel is on the surface of conductive core (4), shielding layer (6) parcel is on the surface of insulating cover (5), the centre of pencil (1) is equipped with centre frame (2), pencil (1) is annular fixed connection on the surface of centre frame (2), the surface coating of pencil (1) has surrounding layer (3), surrounding layer (3) are including band (7), crosslinked polyethylene insulating layer (8) and low smoke and zero halogen sheath (9), band (7) winding parcel is on the surface of pencil (1), crosslinked polyethylene insulating layer (8) are located the surface of band (7), low smoke and zero halogen sheath (9) cup joint the surface at crosslinked polyethylene insulating layer (8).

2. The cross-linked polyethylene insulated low smoke zero halogen computer cable according to claim 1, characterized in that: the wrapping tape (7) is obliquely and uniformly wrapped on the surface of the wire harness (1) at an angle of 45 degrees, and the wrapping tape (7) is uniformly wound on the surface of the wire harness (1) in the clockwise direction.

3. The cross-linked polyethylene insulated low smoke zero halogen computer cable according to claim 1, characterized in that: the inside embedding of crosslinked polyethylene insulating layer (8) is connected with drainage wire (10), drainage wire (10) are the annular and distribute in the outside edge of pencil (1).

4. The cross-linked polyethylene insulated low smoke zero halogen computer cable according to claim 1, characterized in that: the thickness of the crosslinked polyethylene insulating layer (8) is 1.2-1.5mm, and the inside of the crosslinked polyethylene insulating layer (8) is provided with uniformly distributed bubble holes (11).

5. The cross-linked polyethylene insulated low smoke zero halogen computer cable according to claim 1, characterized in that: the end face of the central frame (2) is triangular, the side edge of the central frame is provided with an arc-shaped groove (12), and the center of the central frame (2) is provided with a hollow groove (13).

Images