CN209980850U

CN209980850U - Double-layer shielding communication cable

Info

Publication number: CN209980850U
Application number: CN201921244847.9U
Authority: CN
Inventors: 郑鲜莉; 张姚伟; 姚佩根; 顾富祥
Original assignee: Zhejiang Hai Yan Electronic Cable Co Ltd
Current assignee: Zhejiang Hai Yan Electronic Cable Co Ltd
Priority date: 2019-08-02
Filing date: 2019-08-02
Publication date: 2020-01-21
Anticipated expiration: 2029-08-02

Abstract

The utility model provides a double-deck shielding communication cable, including shielded wire, shielding layer and restrictive coating have shielding layer and restrictive coating in proper order outside after the shielded wire pair is twisted into a beam, the shielding layer is tinned wire woven shield, the shielded wire includes insulating heart yearn, polyester area and aluminium foil shielding layer, insulating heart yearn is twisted into a beam and is wrapped polyester area and aluminium foil shielding layer in proper order outside, insulating heart yearn includes conductor, first insulating layer, second insulating layer and third insulating layer are wrapped in proper order outside the conductor; the utility model discloses a communication cable is provided with the double-layer shielding structure of the aluminum foil shielding layer and the tinned wire braided shielding layer, the shielding effect is good, and the anti-interference performance is strong; the communication cable insulating layer is of a three-layer insulating structure, wherein the middle layer is a foamed PE layer, so that the quality of the communication cable is reduced, and the cable is convenient to install.

Description

Double-layer shielding communication cable

Technical Field

The utility model relates to a communication cable field, concretely relates to double-deck shielding communication cable.

Background

A communications cable is a cable that transmits telephone, telegraph, facsimile documents, television and radio programs, data and other electrical signals. Is formed by twisting more than one pair of mutually insulated wires. With the rapid development of the internet, the demand of people on network bandwidth is more and more increased, and although the ultra-six types of network cables can support ten-trillion internet access, the maximum bandwidth can only reach 500MHZ, the shielding anti-interference performance is poor, and the transmission requirement of higher bandwidth is difficult to meet;

the prior art communication cable has two disadvantages:

1. the cable adopts single-layer shielding, so that the shielding effect is poor, and the anti-interference performance is poor;

2. the cable insulation adopts a solid structure, so that the cable has large mass and is inconvenient to install;

based on the circumstances, the utility model provides a double-deck shielding communication cable can effectively solve above problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a double-deck shielding communication cable. The utility model discloses a communication cable is provided with the double-layer shielding structure of the aluminum foil shielding layer and the tinned wire braided shielding layer, the shielding effect is good, and the anti-interference performance is strong; the communication cable insulating layer is of a three-layer insulating structure, wherein the middle layer is a foamed PE layer, so that the quality of the communication cable is reduced.

The utility model discloses a following technical scheme realizes:

a double-shield communication cable is characterized in that: including shielded wire, shielding layer and restrictive coating, the shielded wire pair is twisted into the back and has shielding layer and restrictive coating in the outside cladding in proper order, the shielding layer is tinned wire woven shield layer.

The shielded wire comprises an insulating core wire, a polyester belt and an aluminum foil shielding layer, the insulating core wire is twisted into a beam and sequentially coated with the polyester belt and the aluminum foil shielding layer on the outer side, the insulating core wire comprises a conductor, a first insulating layer, a second insulating layer and a third insulating layer, and the first insulating layer, the second insulating layer and the third insulating layer are sequentially coated on the outer side of the conductor.

The utility model discloses a communication cable is provided with aluminium foil shielding layer and tin-plated wire and weaves shielding layer double-deck shielding structure, and it shields effectually, and interference immunity is strong.

Preferably, two insulating core wires are arranged in the shielding wire, and the two insulating core wires are twisted with each other to form a twisted wire pair.

The utility model discloses a mode that two insulating heart yearns adopted the transposition not only can resist partly electromagnetic interference from the external world, also can reduce the mutual interference between many pairs of stranded conductor to make communication cable transmission signal's quality higher, more stable.

Preferably, four shielding wires are arranged in the communication cable, and the four shielding wires are twisted with each other to form twisted pairs.

The utility model discloses a mode that four shielded wires adopted the transposition can improve communication cable bending property and tensile strength to can reduce the cable size, make the cable more round and more complete, the outward appearance is more beautiful.

Preferably, the first insulating layer is a solid HDPE layer.

Preferably, the second insulating layer is a foamed PE layer.

Preferably, the third insulating layer is a solid HDPE layer.

The utility model discloses communication cable's insulating heart yearn is provided with three insulating layer, and wherein middle insulation layer sets up to foaming PE layer, and both sides insulating layer sets up to solid HDPE layer, and the three-layer insulation system who designs like this can effectually alleviate communication cable's quality for communication cable's installation is more convenient.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

the utility model discloses a communication cable is provided with the double-layer shielding structure of the aluminum foil shielding layer and the tinned wire braided shielding layer, the shielding effect is good, and the anti-interference performance is strong; the communication cable insulating layer is of a three-layer insulating structure, wherein the middle layer is a foamed PE layer, so that the quality of the communication cable is reduced, and the cable is convenient to install.

Drawings

Fig. 1 is a schematic structural diagram of the communication cable of the present invention;

fig. 2 is a schematic structural view of the shielding wire of the present invention;

fig. 3 is a schematic structural view of the insulated core wire of the present invention;

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the following description of the preferred embodiments of the present invention is given with reference to the accompanying examples, but it should be understood that the drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of illustrating the present embodiments, certain portions of the drawings may be enlarged or reduced and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

Example 1:

as shown in fig. 1 to 3, a double-layer shielding communication cable comprises a shielding wire 1, a shielding layer 2 and a sheath layer 3, wherein the shielding wire 1 is twisted into a bundle and sequentially coated with the shielding layer 2 and the sheath layer 3 on the outer side, and the shielding layer 2 is a tinned wire braided shielding layer.

Shielded wire 1 includes insulating heart yearn 11, polyester area 12 and aluminium foil shielding layer 13, insulating heart yearn 11 is to the stranding back and in the outside in proper order cladding polyester area 12 and aluminium foil shielding layer 13, insulating heart yearn includes conductor 111, first insulating layer 112, second insulating layer 113 and third insulating layer 114, the conductor 111 outside wraps first insulating layer 112, second insulating layer 113 and third insulating layer 114 in proper order.

The sheath layer 3 can be made of polyethylene material or other common materials.

Two insulating core wires 11 are arranged inside the shielded wire 1, and the two insulating core wires 11 are mutually twisted to form a twisted wire pair.

Four shielding wires 1 are arranged in the communication cable, and the four shielding wires 1 are twisted with each other to form a twisted pair.

The first insulating layer 112 is a solid HDPE layer.

The second insulating layer 113 is a foamed PE layer.

The third insulating layer 114 is a solid HDPE layer.

Claims

1. A double shielded communication cable, comprising: the twisted shielding wire comprises a shielding wire (1), a shielding layer (2) and a sheath layer (3), wherein the shielding wire (1) is twisted into a beam and is sequentially coated with the shielding layer (2) and the sheath layer (3) on the outer side, and the shielding layer (2) is a tinned wire braided shielding layer;

shielded wire (1) is including insulating heart yearn (11), polyester area (12) and aluminium foil shielding layer (13), insulating heart yearn (11) are to strand into the back and in the outside in proper order cladding polyester area (12) and aluminium foil shielding layer (13), insulating heart yearn (11) are including conductor (111), first insulating layer (112), second insulating layer (113) and third insulating layer (114), conductor (111) outside cladding first insulating layer (112), second insulating layer (113) and third insulating layer (114) in proper order.

2. The double shielded communication cable of claim 1, wherein: two insulating core wires (11) are arranged inside the shielded wire (1), and the two insulating core wires (11) are mutually twisted to form a twisted wire pair.

3. The double shielded communication cable of claim 1, wherein: the four shielding wires (1) are arranged, and the four shielding wires (1) are mutually twisted to form a twisted pair.

4. The double shielded communication cable of claim 1, wherein: the first insulating layer (112) is a solid HDPE layer.

5. The double shielded communication cable of claim 1, wherein: the second insulating layer (113) is a foamed PE layer.

6. The double shielded communication cable of claim 1, wherein: the third insulating layer (114) is a solid HDPE layer.