CN202003762U

CN202003762U - Cross-shaped network cable

Info

Publication number: CN202003762U
Application number: CN2010206871145U
Authority: CN
Inventors: 潘俊业
Original assignee: CALEB CABLE INDUSTRIAL Ltd
Current assignee: CALEB CABLE INDUSTRIAL Ltd
Priority date: 2010-12-29
Filing date: 2010-12-29
Publication date: 2011-10-05
Anticipated expiration: 2020-12-29

Abstract

The utility model discloses a cross-shaped network cable, which comprises an insulating sheath, an isolating framework and four groups of twisted pairs, wherein the isolating framework is arranged in an inner cavity of the insulating sheath and used for dividing the inner cavity of the insulating sheath into four cavities, and the four groups of twisted pairs are arranged in the cavities respectively. The isolating framework is provided with a first partition portion and a second partition portion crossed with the first partition portion; the first partition portion and the second partition portion are perpendicular to each other and divided equally; two ends of the first partition portion are provided with two opposite first blocking portions; two ends of the second partition portion are provided with two opposite second blocking portions; and the twisted pairs are abutted to the insides of the first blocking portions or the second blocking portions respectively. Therefore, the transmission performance of the cross-shaped network cable is improved, and manufacturing cost is reduced.

Description

Cross type grid line

Technical field

The utility model relates to a kind of grid line, especially relates to the good cross type grid line of a kind of laser propagation effect.

Background technology

Along with the continuous development of information communication, users increase fast to the demand of information, such as the multimedia communication that utilizes computer, video telephone and video conferencing etc.Grid line 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.

See also Fig. 4 to Fig. 5, what be used widely at present is six class grid lines, and it is criss-cross plastic insulation skeleton that described six class grid lines are typically provided with a cross section, is the center with this crossing skeleton, four groups of twisted pair wires of symmetric arrangement.Under this structural condition, insulating sleeve directly forces on the described twisted pair wire usually, causes easily that respectively to organize between the twisted pair wire symmetry of fixed position not enough, thereby has reduced the stability of described grid line.By Fig. 4 and shown in Figure 5ly can learn to the test data of described six class grid lines that by network analyzer described six class grid line transmission frequencies are for can only reach 250MHz.If want described six class grid lines are promoted to the level that surpasses six class lines, promptly transmission frequency reaches 500MHz, generally need add extra shielding construction, as described in the skin bag of twisted pair wire establish aluminium foil or add wire braid etc., cost is higher relatively.

The utility model content

The utility model is to provide a kind of laser propagation effect good cross type grid line at the defective that the above-mentioned background technology exists.

For achieving the above object, the utility model discloses a kind of cross type grid line, it comprises that an insulating sleeve, is located at isolation skeleton and the four groups of twisted pair wires in the described insulating sleeve inner chamber, described isolation skeleton is separated into four cavitys with described insulating sleeve inner chamber, and described four groups of twisted pair wires are arranged at respectively in the described cavity; Described isolation skeleton has one first obstruct section and one and second obstruct section that intersects of described first obstruct section, described first obstruct section and described second obstruct section are orthogonal and divide equally, the both ends of described first obstruct section are provided with the two first relative stop parts, the both ends of described second obstruct section are provided with the two second relative stop parts, and described twisted pair wire is resisted against the inboard of corresponding first stop part or second stop part respectively.

Further, the width of the cross section of described first stop part diminishes from the inside to the outside successively, described first stop part near the face of insulating sleeve, with the two sides smooth connection of first stop part; Described second stop part has a base portion vertical with second obstruct section, an and extension that is connected in the center of base portion, described extension near the face of insulating sleeve, with the two sides smooth connection of described extension.

Further, described cross type grid line is helical form and its cross section ovalize, the center of described cross type grid line cross section is 2.50～3.00mm to the distance of the end of described first stop part, and the center of described cross type grid line cross section to the distance of the end of described second stop part is 3.75～4.25mm.

Further, described twisted pair wire is by two stranded forming of heart yearn, described heart yearn comprises metallic conductor and is wrapped in the insulating barrier in the metallic conductor outside, that the color of described eight heart yearns is respectively is blue between blue, white, orange, green between orange, green, white between white, coffee, in vain between coffee, described eight heart yearns according to coffee between green between orange, green-Bai between blue between indigo plant-Bai, orange-Bai, coffee-Bai carry out four groups stranded, between described indigo plant-Bai between blue twisted pair wire and green-Bai green twisted pair wire be the diagonal angle setting.

Further, the described lay of respectively organizing twisted pair wire is: coffee 8.50～9.50mm between green 9.00～10.00mm, coffee-Bai between orange 7.00～8.00mm, green-Bai between blue 10.00～11.00mm, orange-Bai between indigo plant-Bai.

In sum, the utility model is fixed in described twisted pair wire in the cavity that described isolation skeleton isolates, and described twisted-pair feeder is resisted against the inboard of described first stop part or second stop part, make the structure of described twisted pair wire keep stable, thereby not only promoted the transmission performance of described cross type grid line, and reduced cost of manufacture.

Description of drawings

Fig. 1 is the schematic cross-section of a kind of embodiment of the utility model;

Fig. 2 is the curve chart by network analyzer test the utility model gained pad value;

Fig. 3 is the curve chart by network analyzer test the utility model gained near-end cross value;

Fig. 4 is the curve chart by the grid line gained pad value of network analyzer test prior art;

Fig. 5 is the curve chart by the grid line gained near-end cross value of network analyzer test prior art.

Embodiment

For further understanding feature of the present utility model, technological means and the specific purposes that reached, function, the utility model is described in further detail below in conjunction with accompanying drawing and embodiment.

See also Fig. 1, the utility model cross type grid line 1 comprises that an insulating sleeve 10, is located at isolation skeleton 20 and the four groups of twisted pair wires 30 in described insulating sleeve 10 inner chambers.

Please continue to consult Fig. 1, described isolation skeleton 20 is separated into four cavitys 40 with described insulating sleeve 10 inner chambers, and described four groups of twisted pair wires 30 are arranged at respectively in the described cavity 40.Described isolation skeleton 20 has one first obstruct section 21 and one and second obstruct section 22 that intersects of described first obstruct section 21.Described first obstruct section 21 is orthogonal and divide equally with described second obstruct section 22.The both ends of described first obstruct section 21 are provided with the two first relative stop parts 23, and the both ends of described second obstruct section 22 are provided with the two second relative stop parts 24.Described twisted pair wire 30 is resisted against the inboard of corresponding first stop part 23 or second stop part 24 respectively.

Please continue to consult Fig. 1, the cross section of described isolation skeleton 20 is a crux.The end of the end of two first stop parts, 23 cross sections and two second stop parts, 24 cross sections linked to each other successively can form a rhombus.In the present embodiment, the width of the cross section of described first stop part 23 diminishes from the inside to the outside successively.Described first stop part 23 near the face of insulating sleeves 10, with the two sides smooth connection of first stop part 23.Described second stop part 24 has a base portion 241 vertical with second obstruct section 22, an and extension 242 that is connected in the center of base portion 241.In the present embodiment, described extension 242 near the face of insulating sleeves 10, with the two sides smooth connection of described extension 242.In the present embodiment, described cross type grid line 1 is helical form and its cross section ovalize; The center of described cross type grid line 1 cross section is 2.50～3.00mm to the distance of the end of described first stop part 23, and the center of described cross type grid line 1 cross section to the distance of the end of described second stop part 24 is 3.75～4.25mm.

Please continue to consult Fig. 1, described twisted pair wire 30 is by two heart yearns, 31 stranded forming.Described heart yearn 31 comprises metallic conductor 311 and is wrapped in the insulating barrier 312 in metallic conductor 311 outsides.Because described cross type grid line 1 comprises four groups of twisted pair wires 30 altogether, described cross type grid line 1 has eight heart yearns 31 altogether.That the color of described eight heart yearns 31 is respectively is blue between blue, white, orange, green between orange, green, white between white, coffee, in vain between coffee.Described eight heart yearns 31 according to coffee between green between orange, green-Bai between blue between indigo plant-Bai, orange-Bai, coffee-Bai carry out four groups stranded, between described indigo plant-Bai between blue twisted pair wire 30 and green-Bai green twisted pair wire 30 be the diagonal angle setting.Between described indigo plant-Bai between blue twisted pair wire 30, orange-Bai between orange twisted pair wire 30, green-Bai between green twisted pair wire 30, coffee-Bai coffee twisted pair wire 30 in described insulating sleeve 10, be counterclockwise sequence arrangement.In the present embodiment, the described lay of respectively organizing twisted pair wire 30 is: coffee 8.50～9.50mm between green 9.00～10.00mm, coffee-Bai between orange 7.00～8.00mm, green-Bai between blue 10.00～11.00mm, orange-Bai between indigo plant-Bai.

See also Fig. 1 to Fig. 3, the stable of described heart yearn 31 structures is the key factor that influences network transmission performance.The utility model is fixed in described twisted pair wire 30 in the described cavity 40, and is resisted against the inboard of described first stop part 23 or second stop part 24, thereby described twisted pair wire 30 can well be fixed in the cavity 40 that described isolation skeleton 20 isolated.Since described first stop part 23 near the face of insulating sleeves 10, with the two sides smooth connection of first stop part 23; And described extension 242 near the face of insulating sleeves 10, with the two sides smooth connection of described extension 242, thereby the cross sectional shape that not only can keep grid line 1, and help keeping respectively organizing symmetric relation between the twisted pair wire 30, improved the structural stability of described heart yearn 31, reduce respectively to organize crosstalking between the twisted pair wire 30, and then make that the transmission performance of described cross type grid line 1 is promoted.Described cross type grid line 1 is helicoidal structure and its cross section ovalize, thereby has the space between line and the line, thereby adjacent cables interferes with each other when having significantly reduced wiring, i.e. the probability of alien cross-talk.And because the direction of rotation of adjacent cables is not quite similar, crosstalk, also increased the probability of cancelling out each other greatly even produce.What Fig. 2 and Fig. 3 showed is to test the pad value of described cross type grid line 1 gained and the curve chart of near-end cross value by network analyzer.By diagram as can be known, transmission frequency rises to present 500Mhz by the 250Mhz before improving, and has promptly been risen to the level of category 6+network 1 by the level of six class grid lines 1.Among Fig. 2 and Fig. 3, what described red line was represented is that normal data is an extreme value, and what described blue line was represented is measured value.As seen from the figure, all in normal data, the pad value and the near-end cross value of promptly described cross type grid line 1 have all reached requirement for the pad value of described cross type grid line 1 and the measured data of near-end cross value.Other numerical value such as return loss that described network analyzer is tested described cross type grid line 1 gained have also all reached requirement.Because the utility model only need replace to original cross mould the mould of making described isolation skeleton 20 and get final product, and need not add extra shielding construction, such as wire braid of aluminium foil or tin-coated copper etc., thereby not only reduced cost of manufacture greatly but also reduced production process, saved Production Time.

In sum, the utility model is fixed in described twisted pair wire 30 in the cavity 40 that described isolation skeleton 20 isolates, and described twisted pair wire 30 is resisted against the inboard of described first stop part 23 or second stop part 24, make the structure of described twisted pair wire 30 keep stable, thereby not only promoted the transmission performance of described cross type grid line 1, and reduced cost of manufacture.

The above embodiment has only expressed a kind of execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model scope.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with claims.

Claims

1. cross type grid line, it comprises that an insulating sleeve (10), is located at isolation skeleton (20) and the four groups of twisted pair wires (30) in described insulating sleeve (10) inner chamber, it is characterized in that: described isolation skeleton (20) is separated into four cavitys (40) with described insulating sleeve (10) inner chamber, and described four groups of twisted pair wires (30) are arranged at respectively in the described cavity (40); Described isolation skeleton (20) has one first obstruct section (21) and one and second obstruct section (22) that intersects of described first obstruct section (21), described first obstruct section (21) and described second obstruct section (22) are orthogonal and divide equally, the both ends of described first obstruct section (21) are provided with two relative first stop parts (23), the both ends of described second obstruct section (22) are provided with two relative second stop parts (24), and described twisted pair wire (30) is resisted against the inboard of corresponding first stop part (23) or second stop part (24) respectively.

2. cross type grid line according to claim 1, it is characterized in that: the width of the cross section of described first stop part (23) diminishes from the inside to the outside successively, described first stop part (23) near the face of insulating sleeve (10), with the two sides smooth connection of first stop part (23); Described second stop part (24) has a base portion (241) vertical with second obstruct section (22), an and extension (242) that is connected in the center of base portion (241), described extension (242) near the face of insulating sleeve (10), with the two sides smooth connection of described extension (242).

3. cross type grid line according to claim 2, it is characterized in that: described cross type grid line is helical form and its cross section ovalize, the center of described cross type grid line cross section is 2.50～3.00mm to the distance of the end of described first stop part (23), and the center of described cross type grid line cross section to the distance of the end of described second stop part (24) is 3.75～4.25mm.

4. cross type grid line according to claim 3, it is characterized in that: described twisted pair wire (30) is by stranded the forming of two heart yearns (31), described heart yearn (31) comprises metallic conductor (311) and is wrapped in the insulating barrier (312) in metallic conductor (311) outside, it is blue that the color of described eight heart yearns (31) is respectively, blue between white, orange, orange between white, green, green between white, coffee, coffee between white, described eight heart yearns (31) are according to blue between indigo plant-Bai, orange between orange-Bai, green between green-Bai, between coffee-Bai coffee carry out four groups stranded, between described indigo plant-Bai between blue twisted pair wire (30) and green-Bai green twisted pair wire (30) be the diagonal angle setting.

5. cross type grid line according to claim 4 is characterized in that: the described lay of respectively organizing twisted pair wire (30) is: coffee 8.50～9.50mm between green 9.00～10.00mm, coffee-Bai between orange 7.00～8.00mm, green-Bai between blue 10.00～11.00mm, orange-Bai between indigo plant-Bai.