KR20120057182A - Utp cable improved in separator structure - Google Patents

Abstract

The present invention includes at least one pair of wire pairs formed by spirally twisting at least two strands of insulated coated wires; A separator provided in the wire pair to separate the insulating coated wires from each other, and having a body capable of forming an air gap between the insulating coated wires; And an insulator jacket surrounding the wire pair.

Description

UTP cable with improved structure of separator {UTP CABLE IMPROVED IN SEPARATOR STRUCTURE}

The present invention relates to a communication cable, and more particularly to a UTP (Unshielded Twisted Pair) cable is provided with a separator (Separator) for the separation of the conductors in a spirally twisted wire pair.

In general, UTP cable is a non-shielded twisted pair cable widely used for the construction of a communication network such as a LAN, for example, in which two strands of insulated sheathed conductors 11 and 12 are twisted in a spiral manner as shown in FIG. 1. The pair 10 is provided in an aggregate form in an insulator jacket (see 14 in FIG. 2).

Important characteristics that determine communication quality when using UTP cable include propagation delay and near end cross talk (NEXT). These characteristics exist between the two wires that make up a pair of UTP cable. It is greatly influenced by coupling loss, mutual inductance and pitch.

In order to improve the characteristics of the UTP cable, most of the current UTP cable is a separator is interposed between the insulated conductors constituting the wire pair, and a cross filler is inserted between neighboring wire pairs.

As shown in FIG. 2, the separator 13 generally has a film structure in which a cross section is curved in a substantially 'S' shape. The separator 13 having a film structure extends along the longitudinal direction of the conductive wire pair 10 and is interposed so as to surround the two strands of the insulation coated conductive wires 11 and 12 in a zigzag form. As patent documents which disclose the separator 13 of a film structure, US 6,506,976, US 2009/0236120, etc. are mentioned.

However, the UTP cable having the separator 13 having a film structure has a high dielectric constant because the space between the two strands of insulated conductors 11 and 12 is filled with a dielectric film. For this reason, the conventional UTP cable is limited in reducing the outer diameter of the insulation coating conductors 11 and 12, and also has a limit in reducing the association pitch of the conductor pairs 10.

The present invention has been made to solve the above problems, and an object thereof is to provide a UTP cable having a separator having a structure capable of reducing the dielectric constant between two strands of insulated conductors forming a wire pair. .

In order to achieve the above object, the present invention provides at least one pair of at least one wire pair formed by twisting at least two strands of the insulation coating conductor; A separator provided in the conductive wire pair to separate the insulating coated wires from each other, and having a body capable of forming an air gap between the insulating coated wires; And an insulator jacket surrounding the wire pair.

The separator may be provided in the form of a wire rod wound on at least one of the insulated coated wires of the wire pair.

The wire rod is preferably a yarn or a synthetic wire.

The separator may be provided in a form having a plurality of ribs extending in multiple axes.

The separator may be formed in the form of a cross formed by the combination of the inclined ribs, or in the form of a horizontal rib connected to the vertical rib or the inclined rib.

The UTP cable may further include four wire pairs in the insulator jacket, and a cross filler to insulate the plurality of wire pairs from each other in the insulator jacket.

According to the present invention, by forming an air gap between the insulating coated conductors constituting the wire pair, the dielectric constant can be significantly reduced. Therefore, the outer diameter of the insulated coated conductor can be made very small while maintaining high performance without defects such as propagation delay, and it is possible to reduce the twist pitch of the conductor pair.

According to the present invention, it is possible to form the separator uniformly along the longitudinal direction of the conductor pair, there is an advantage that the performance change is small.

In addition, when the separator is configured in the form of a yarn or a wire transversely wound on the insulation coating conductor, it is convenient to manufacture, increase the flexibility of the cable, there is an advantage that can easily form an air gap.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description of the invention given below, serve to further the understanding of the technical idea of the invention. And should not be construed as limiting.
1 is a perspective view showing a wire pair provided in a general UTP cable,
2 is a cross-sectional view showing the configuration of a UTP cable according to the prior art;
3 is a cross-sectional view showing the configuration of a UTP cable according to a preferred embodiment of the present invention;
4 to 8 are cross-sectional views showing the configuration of a separator provided according to another embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

3 is a cross-sectional view showing the configuration of a UTP cable according to a preferred embodiment of the present invention.

Referring to FIG. 3, a UTP cable according to a preferred embodiment of the present invention includes a wire pair 100 having a structure in which at least two strands of insulated conductors 101 and 102 are twisted in a spiral shape, and two strands of insulated conductors 101 and 102. A separator 105 forming an air gap therebetween, and an insulator jacket 114 surrounding the conductive wire pair 100 from the outside.

Each of the insulating coated conductors 101 and 102 constituting the conductive wire pair 100 has a structure in which the conductor core 103 is covered with the insulator 104.

Preferably, the present invention may be configured such that the four wire pairs 100 are collected in the insulator jacket 114, but the number of the wire pairs in the insulator jacket 114 is not limited thereto and may be variously modified. .

In the present invention, as the conductor core 103 forming each conductor line, an AWG24 standard copper wire used for a conventional UTP cable may be used. In addition, polyethylene (PE) or high density polyethylene (HDPE) may be used as the insulator 104 coated on the conductor core 103.

The separator 105 has a wire structure that is transversely wound on the insulation coated conductive wires 101 and 102 of the conductive wire pair 100. The separator 105 of the wire structure may be transversely wound on any one or both of the insulation coated conductors 101 and 102 constituting the conductor pair 100. Here, the wire rod constituting the separator 105 is preferably a synthetic resin wire such as yarn or plastic. Since the separator 105 of the wire structure is installed in the conductive wire pair 100 by the lateral winding, the installation process is simple and the air gap can be uniformly formed along the longitudinal direction of the conductive pair.

4 to 8 show the configuration of the separators 106 to 110 provided according to another embodiment of the present invention. The separators 106 to 110 shown in FIGS. 4 to 8 have a plurality of ribs adjacent to each other by having a plurality of ribs extending in at least two different Axis directions, that is, multi-axis directions. An air gap is formed between the 101 and 102 layers, and the insulation leads are separated from each other.

In detail, FIG. 4 illustrates a separator 106 having a cross shape as a whole by a combination of inclined ribs 111 inclined in opposite directions. In FIG. 5, a plurality of horizontal lines are formed on the inclined ribs 111. A separator 107 is shown having a structure in which ribs 112 are connected.

6 illustrates a separator 108 having a structure in which a plurality of horizontal ribs 112 are connected to portions except both ends of the vertical ribs 113, and in FIG. 7, horizontal ribs are provided at both ends of the vertical ribs 113. A separator 109 is shown connected to 112, and FIG. 8 shows a separator 110 having a structure in which horizontal ribs 112 are connected to one end of a vertical rib 113.

In addition, a cross filler 115 is inserted into the insulator jacket 114 to isolate the plurality of wire pairs 100 from each other.

As described above, the present invention has a structure in which an air gap is formed between the insulating coated conductors 101 and 102 by the separator 105 of the wire rod form or the multi-rib rib type separators 106-110 which are transversely wound on the insulating coated conductors 101 and 102. Provides a UTP cable with.

UTP cable according to the present invention has a very small dielectric constant due to the air gap, so that the outer diameter of the insulated sheathed wire can be formed very small, for example, 0.8 mm or less while maintaining high performance without occurrence of defects such as propagation delay, conductor pair It is possible to reduce the twist pitch of the conventional one.

Although the present invention has been described above by means of limited embodiments and drawings, the present invention is not limited thereto and will be described below by the person skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of the claims.

100: conductor pair 101, 102: insulated coating conductor
103: conductor core 104: insulator
105 to 110: Separator 111: Inclined rib
112: horizontal rib 113: vertical rib
114: insulator jacket 115: cross filler

Claims (7)

At least one pair of wire pairs formed by helically twisting at least two strands of insulated conductors;
A separator provided in the wire pair to separate the insulation coating wires from each other, and having a body capable of forming an air gap between the wire coating wires; And
UTP cable comprising an insulator jacket surrounding the wire pair. The method of claim 1,
And the separator has a wire rod structure transversely wound on at least one of the insulated conductors of the conductor pair. The method of claim 2,
The wire is UTP cable, characterized in that the yarn or synthetic wire. The method of claim 1,
And the separator has a plurality of ribs extending in multiple axes. The method of claim 4, wherein
And the separator has a cross structure formed by a combination of slanted ribs. The method of claim 4, wherein
The separator is a UTP cable, characterized in that the horizontal ribs are connected to the vertical ribs or inclined ribs. The method of claim 1,
Four conductor pairs are collected in the insulator jacket,
And a cross filler inserted into the insulator jacket to insulate the plurality of wire pairs from each other.

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