CN201638602U

CN201638602U - Super six categories unshielded data cable

Info

Publication number: CN201638602U
Application number: CN2010200496998U
Authority: CN
Inventors: 姚金龙; 周红平; 倪冬华; 叶国强; 姚云涛
Original assignee: ZHEJIANG ZHAOLONG CABLE CO Ltd
Current assignee: ZHEJIANG ZHAOLONG CABLE CO Ltd
Priority date: 2010-01-11
Filing date: 2010-01-11
Publication date: 2010-11-17
Anticipated expiration: 2020-01-11

Abstract

The utility model relates to a data cable in the technical field of electronic information, in particular to a high-speed transmission data cable used for data signals of audio, video, images, and the like. The super six categories unshielded data cable comprises an outer insulated protecting jacket, a cross insulated framework and four groups of unshielded wire pairs, wherein the inner circle of the outer insulated protecting jacket is provided with a saw-toothed groove; the cross insulated framework is a foaming type; the inner cavity of the outer insulated protecting jacket is separated into four cavities by the cross insulated framework; the four groups of unshielded wire pairs are respectively arranged in the four cavities, and a tearing wire is arranged in one cavity; and each unshielded wire pair consists of two leads, and each lead consists of a copper conductor and an insulated layer coated on the copper conductor. The data cable improves the cross talk resistance, the cross talk property among the wire pairs and the attenuation allowance.

Description

A kind of super-six type unshielded data cable

Technical field

The utility model relates to the data cable of electronic information technical field, relates in particular to the high speed transmission data cable of data-signals such as being used for audio frequency, video, image.

Background technology

Along with the continuous development of information network, information communication is more and more frequent, and the information exchange capacity is also increasing.Data cable is the important transmission medium of the network information, is faced with new technological change and innovation, will improve transmission rate on the one hand, satisfies the transmission and the exchange of big capacity information, will improve transmission stability on the other hand, guarantees the quality of message transmission.

Ethernet came out over more than 30 year, network transmission speed has improved nearly thousand times, FDX Ethernet (10Mbps), 100 m ethernet (100Mbps), 802.3u Fast Ethernet (1000Mbps) have been experienced, ten thousand mbit ethernets (10Gbps) till now, also will develop to 100,000 mbit ethernets (100Gbps) future.From present information transmission technology development, ten thousand mbit ethernets will be the direction and the trend of the networking coming years, and the demand that is fit to the high-speed data transmission cable of ten thousand mbit ethernets in the coming five years will increase fast.

The development of the research and development of data cable and manufacturing and Ethernet synchronously, manufacturer releases 3 classes (10Mbps) earlier, 5 classes (100Mbps) surpass 5 classes and 6 classes (1000Mbps), for information network construction and upgrading play an important role.Have now and surpass 6 class data cables generally with solid skeleton and smooth type jacket structure, such structural design, cause easily in use inside and outside interference signal go here and there mutually around and the problem of decay surplus deficiency, thereby the every performance when influencing ten thousand mbit ethernet networks and using.

Summary of the invention

For solve inside and outside interference signal go here and there mutually around and the problem of decay surplus deficiency, the purpose of this utility model provides a kind of super-six type unshielded data cable, this data cable improves the anti-cross-talk performance of cable, improved line to the cross-talk performance, improved the decay surplus.

In order to realize above-mentioned purpose, the utility model has adopted following technical scheme:

A kind of super-six type unshielded data cable; this data cable isolates skeleton by insulation outer jointing jacket, cross and four groups of non-shielded pairs constitute; the inner ring of insulation outer jointing jacket is provided with and is the sawtooth pattern groove; cross is isolated skeleton and is adopted the expansion type cross to isolate skeleton; cross is isolated will the insulate inner chamber of outer jointing jacket of skeleton and is isolated into four cavitys; four groups of non-shielded pairs are separately positioned in four cavitys; and in a cavity, tear line is set; described non-shielded pair is made of two leads, and lead is made of copper conductor and the insulating barrier that is wrapped on the copper conductor.

As preferably, described insulating barrier adopts the HDPE insulating material.

As preferably, the foam degrees that skeleton isolated in described cross is 15%～35%.Preferred again, the foam degrees that skeleton isolated in described cross is 15%～25%.As further improvement, the length that skeleton isolated in described cross is 4.0～6.0mm, and cross is isolated the wideest portion of skeleton and is of a size of 0.4～0.8mm.

As preferably, the facewidth A of described groove is 1.0～2.0mm, and tooth depth is that H is 0.4～0.8mm, and groove is 0.3～0.6mm apart from the thinnest distance h of insulation outer jointing jacket outer wall.

As preferably, the pitch proportioning value of described four groups of non-shielded pairs is 13.0～13.5,9.0～9.4,16.0～16.5,10.0～10.5, and four groups of non-shielded pair pitch proportioning numerical value, the vertical mean pitch value of control twisted wire maximum deviation are below 1.5%.Above-mentioned structure reduced the error of pitch numerical value and actual pitch value, widened line to difference, improved the cross-talk index of product.

The utility model has following characteristics owing to adopted above-mentioned technical scheme;

1, the design oversheath adopts the purpose of degree of depth sawtooth pattern groove structure, is in order to make the right position of 4 groups of lines more fixing relatively, the distortion that is not easy to be moved, thereby make line between the distance maintenance more uniform and stable.Simultaneously, also can increase the cable volume inside, improve the anti-cross-talk performance of cable, solve the cable problem of high-frequency signal phase mutual interference between cable in actual applications.

2, skeleton employing foaming structure isolated in cross, can reduce cross and isolate the dielectric constant of skeleton, thereby improve the insulation characterisitic that skeleton isolated in cross, guarantee that cable is under solid insulation and non-shielding construction, improved line to the cross-talk performance, keep the anti-combustion characteristic of safety and enough decay surpluses of product.

3, the pitch system of twisted pair wire process equipment transforms, redesign the right pitch proportioning value of line simultaneously, reduced the error of pitch numerical value and actual pitch value, widened line to difference, further effectively improve the cross-talk performance between cable inside and cable and the cable.

The key technical indexes of product of the present utility model is as follows:

(1) decay (ATT) :≤45.3dB/100m (500MHz)

(2) near-end crosstalk (NEXT): 〉=33.8dB/100m (500MHz)

(3) near-end crosstalk power and (PSNEXT): 〉=31.8dB/100m (500MHz)

(4) return loss (RL): 〉=15.2dB/100m (500MHz)

(5) near-end crosstalk power and (PSANEXT) between cable: 〉=52.0dB/100m (500MHz).

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is made a detailed explanation.

A kind of super-six type unshielded data cable as shown in Figure 1; this data cable isolates skeleton 2 by insulation outer jointing jacket 1, cross and four groups of non-shielded pairs 4 constitute; the inner ring of insulation outer jointing jacket 1 is provided with and is sawtooth pattern groove 3; the facewidth A of groove is 1.5mm; tooth depth is that H is 0.6mm, and groove is 0.5mm apart from the thinnest distance h of insulation outer jointing jacket outer wall.Cross is isolated skeleton 2 and is adopted the expansion type cross to isolate skeleton, and the foam degrees that skeleton 2 isolated in cross is 30%, and the length that skeleton isolated in cross is 5.0mm, and cross is isolated the wideest portion of skeleton and is of a size of 0.6mm.Cross is isolated will the insulate inner chamber of outer jointing jacket 1 of skeleton 2 and is isolated into four cavitys; four groups of non-shielded pairs 4 are separately positioned in four cavitys; and in a cavity, tear line 8 is set; 4 pairs of described non-shielding conductors are made of two leads 5; lead 5 is made of copper conductor 6 and the insulating barrier 7 that is wrapped on the copper conductor 6, and insulating barrier 7 adopts the HDPE insulating material.The pitch proportioning value of four groups of non-shielded pairs 4 is that 13.2,9.21,16.32,10.14, four groups of non-shielded pair 4 pitch proportioning numerical value, the vertical mean pitch value of control twisted wire maximum deviation are below 1.5%.

Claims

1. super-six type unshielded data cable; this data cable is by insulation outer jointing jacket (1); skeleton (2) isolated in cross and four groups of non-shielded pairs (4) constitute; it is characterized in that: the inner ring of insulation outer jointing jacket (1) is provided with the groove (3) that is sawtooth pattern; cross is isolated skeleton (2) and is adopted the expansion type cross to isolate skeleton; cross is isolated will the insulate inner chamber of outer jointing jacket (1) of skeleton (2) and is isolated into four cavitys; four groups of non-shielded pairs (4) are separately positioned in four cavitys; and tear line (8) is set in a cavity; described non-shielded pair (4) is made of two leads (5), and lead (5) is by copper conductor (6) and be wrapped in insulating barrier (7) formation on the copper conductor (6).

2. a kind of super-six type unshielded data cable according to claim 1 is characterized in that: insulating barrier (7) adopts the HDPE insulating material.

3. a kind of super-six type unshielded data cable according to claim 1 is characterized in that: the foam degrees that skeleton (2) isolated in cross is 15%～35%.

4. a kind of super-six type unshielded data cable according to claim 3 is characterized in that: the foam degrees that skeleton (2) isolated in cross is 15%～25%.

5. according to claim 3 or 4 described a kind of super-six type unshielded data cables, it is characterized in that: the length that skeleton (2) isolated in cross is 4.0～6.0mm, and cross is isolated the wideest portion of skeleton (2) and is of a size of 0.4～0.8mm.

6. according to claim 1 or 2 or 3 or 4 described a kind of super-six type unshielded data cables; it is characterized in that: the facewidth A of described groove (3) is 1.0～2.0mm; tooth depth is that H is 0.4～0.8mm, and groove (3) is 0.3～0.6mm apart from the thinnest distance h of insulation outer jointing jacket (1) outer wall.

7. according to claim 1 or 2 or 3 or 4 described a kind of super-six type unshielded data cables, it is characterized in that: the pitch proportioning value of four groups of non-shielded pairs (4) is 13.0～13.5,9.0～9.4,16.0～16.5,10.0～10.5, four groups of non-shielded pairs (4) pitch proportioning numerical value, the vertical mean pitch value of control twisted wire maximum deviation is below 1.5%.