CN102646479A - Twisted wire and cable - Google Patents
Twisted wire and cable Download PDFInfo
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- CN102646479A CN102646479A CN2012101270795A CN201210127079A CN102646479A CN 102646479 A CN102646479 A CN 102646479A CN 2012101270795 A CN2012101270795 A CN 2012101270795A CN 201210127079 A CN201210127079 A CN 201210127079A CN 102646479 A CN102646479 A CN 102646479A
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Abstract
The invention belongs to the technical field of communication wires and provides a twisted wire and a cable. The cable comprises a plurality of groups of twisted wires, an inner layer, a shielding layer and an outer layer, wherein each group of twisted wires comprises two core wire groups, each core wire group comprises a conductor and insulated layers coated at the outer side of the conductor respectively, a partition body is twisted between the two core wire groups, an isolated support is arranged in the inner layer, containing chambers with the number being equal to the number of the groups of the twisted wires are formed between the isolated support and the inner layer, one group of twisted wires can be placed in each containing chamber, the shielding layer is coated at the outer side of the inner layer, and the outer layer is coated at the outer side of the shielding layer. The twisted wire and the cable have the advantages that the partition body is twisted between the two core wire groups, thereby changing the traditional mode that the impedance is determined by conductors and insulation; as the thickness of the partition body can be regulated freely, the impedance characteristic can be regulated; and the isolated support is in a cross shape, so that the gaps of air surrounding the conductors can be maximized, thereby realizing the stable impedance performance, improving the attenuation performance and ensuring the high transmission performance of the cable.
Description
Technical field
The invention belongs to communication wire rod technical field, relate to a kind of twisted pair wire and cable.
Background technology
Power cable and communication cable are the second largest pillar products of China's exported product; Big cable by many or many to little twisted pair wire with certain stranded forming of spiral distance; As shown in Figure 1, be twisted pair wire of the prior art, each strand twisted pair wire is formed by two heart yearn group 1 pair twists; Heart yearn group 1 comprises the insulating barrier 12 in the conductor 11 and difference coating conductor 11 outsides; The high-performance of data cable again with three relevant good difference correlations that are respectively impedance, decay and cross-talk index of important parameter, the characteristic impedance of cable mainly is the influence that receives the external diameter of conductor 11 material around dielectric constants, insulating barrier 12 and conductor 11 self, also receives the influence of unit length twist number simultaneously; And the practical impedance of cable is associated with spacing between the conductor 12 by conductor diameter, heart yearn group 1 mutual alignment relation and conductor 12 to a great extent; Not only inner conductor 11 copper wires are thick for the construction of cable in the prior art, not only very waste of manufacturing materials like this, and can cause deterioration such as indexs such as impedance, decay and cross-talks; Seriously restricting the raising of data cable operating frequency and data transmission bauds, therefore be necessary the existing construction of cable is improved.
Summary of the invention
Technical problem to be solved by this invention is the present situation to prior art, and a kind of stable and reliable structure is provided, and under the transmission conditions of high frequency, has the twisted pair wire of more excellent electric property.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of twisted pair wire; Comprise that mutual pair twist is twisted into spiral helicine two heart yearn groups; Described every heart yearn group comprises the insulating barrier in the conductor and the difference coating conductor outside, and it is characterized in that: between two heart yearn groups, going back pair twist has spacer body.
The measure of taking for the optimization such scheme specifically comprises:
In above-mentioned a kind of twisted pair wire, described conductor is solid copper cash or zinc-plated copper cash, perhaps is twisted into one by many fine copper wires.
In above-mentioned a kind of twisted pair wire, described insulating barrier is the thermoplastic plastic, and the thermoplastic plastic is made up of polyethylene or polyolefine material.
The present invention also provides a kind of stable and reliable structure of being made up of the plural groups twisted pair wire, the cable that under the transmission conditions of high frequency, has more excellent electric property.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of cable; It is characterized in that; Comprise plural groups twisted pair wire, internal layer, screen and skin, each group twisted pair wire comprises that mutual pair twist is twisted into spiral helicine two heart yearn groups, and described every heart yearn group comprises the insulating barrier in the conductor and the difference coating conductor outside; Between two heart yearn groups, go back pair twist spacer body is arranged; In internal layer, be provided with isolation mount, form and the same number of accommodation chamber of twisted pair wire group between described isolation mount and the internal layer, place one group of twisted pair wire in each accommodation chamber and make between the twisted pair wire group and isolate each other and stationary positioned; Screen is coated on the outside of internal layer, and skin is coated on the outside of screen.
In above-mentioned a kind of cable, described twisted pair wire group number is 4 groups.
In above-mentioned a kind of cable, described skin is a polythene material, and described internal layer is a transparent plastic paper.
In above-mentioned a kind of cable, described isolation mount is cross.Here through isolation mount that the twisted pair wire group is separated from one another; Eliminate nested possibility between the twisted pair wire group, and distance is maximized, improved crosstalk performance; Isolation mount is cross makes conductor ambient air gap maximize; Stable impedance behavior is provided like this, has improved fade performance
Compared with prior art, the invention has the advantages that through pair twist between two heart yearn groups has spacer body, has changed impedance traditionally by the mode of conductor with the insulation decision; Through freely adjusting the thickness of spacer body; Can adjust impedance operator, and isolation mount is set is cross and makes and conductor ambient air gap maximization stable impedance behavior is provided like this; Improve fade performance, guaranteed the high-transmission performance of cable.
Description of drawings
Fig. 1 is a twisted pair wire sectional structure sketch map of the prior art;
Fig. 2 is the perspective view of this twisted pair wire;
Fig. 3 is the sectional structure sketch map of Fig. 2;
The cable sectional structure sketch map that Fig. 4 is made up of Fig. 3.
Embodiment
Below be specific embodiment of the present invention and combine accompanying drawing, technical scheme of the present invention is done further to describe, but the present invention is not limited to these embodiment.
Among the figure, heart yearn group 1; Conductor 11; Insulating barrier 12; Spacer body 3; Internal layer 4; Outer 5; Isolation mount 6; Accommodation chamber 6a; Screen 7
As shown in Figures 2 and 3; This twisted pair wire comprises that mutual pair twist is twisted into spiral helicine two heart yearn groups 1, and every heart yearn group 1 comprises the insulating barrier 12 in the conductor 11 and difference coating conductor 11 outsides; Conductor 11 is solid copper cash or zinc-plated copper cash, perhaps is twisted into one by many fine copper wires; For the transmission performance that guarantees that twisted pair wire is good, insulating barrier 12 is the thermoplastic plastic, and the thermoplastic plastic is made up of polyethylene or polyolefine material.
The maximum innovation part of the present invention is between two heart yearn groups 1, to go back pair twist spacer body 13 is arranged; Here also prior art is compared and has been increased spacer body 13; Changed impedance traditionally by the mode of conductor 11,, can adjust impedance operator through freely adjusting the thickness of spacer body 13 with the insulation decision.
As shown in Figure 4; Utilize twisted pair wire among Fig. 3 to produce the cable of newtype, comprise plural groups twisted pair wire, internal layer 4, screen 7 and outer 5, each group twisted pair wire comprises that mutual pair twist is twisted into spiral helicine two heart yearn groups 1; Every heart yearn group 1 comprises the insulating barrier 12 in the conductor 11 and difference coating conductor 11 outsides; Between two heart yearn groups 1, going back pair twist has spacer body 13, and twisted pair wire group number is preferably 4 groups here, also can adopt other group number.
In internal layer 4, be provided with isolation mount 6, form and the same number of accommodation chamber 6a of twisted pair wire group between isolation mount 6 and the internal layer 4, place one group of twisted pair wire in each accommodation chamber 6a and make between the twisted pair wire group and isolate each other and stationary positioned; Isolation mount 6 is cross; Here through isolation mount 6 that the twisted pair wire group is separated from one another, eliminated nested possibility between the twisted pair wire group, and made between line group-line group apart from being maximized; Improved crosstalk performance; Isolation mount 6 is cross makes conductor 11 ambient air gaps maximize, and stable impedance behavior is provided like this, has improved fade performance.
Specific embodiment described herein only is that the present invention's spirit is illustrated.Person of ordinary skill in the field of the present invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the defined scope of spirit of the present invention.
Claims (7)
1. twisted pair wire; Comprise that mutual pair twist is twisted into spiral helicine two heart yearn groups (1); Described every heart yearn group (1) comprises the insulating barrier (12) in the conductor (11) and difference coating conductor (11) outside, and it is characterized in that: between two heart yearn groups (1), going back pair twist has spacer body (3).
2. a kind of twisted pair wire according to claim 1 is characterized in that, described conductor (11) is solid copper wire or zinc-plated copper cash, perhaps is twisted into one by many fine copper wires.
3. a kind of twisted pair wire according to claim 1 is characterized in that, described insulating barrier (12) is the thermoplastic plastic, and the thermoplastic plastic is made up of polyethylene or polyolefine material.
4. cable; It is characterized in that; Comprise plural groups twisted pair wire, internal layer (4), screen (7) and skin (5), each group twisted pair wire comprises that mutual pair twist is twisted into spiral helicine two heart yearn groups (1), and described every heart yearn group (1) comprises the insulating barrier (12) in the conductor (11) and difference coating conductor (11) outside; Between two heart yearn groups (1), go back pair twist spacer body (3) is arranged; In internal layer (4), be provided with isolation mount (6), form and the same number of accommodation chamber of twisted pair wire group (6a) between described isolation mount (6) and the internal layer (4), place one group of twisted pair wire in each accommodation chamber (6a) and make between the twisted pair wire group and isolate each other and stationary positioned; Screen (7) is coated on the outside of internal layer (4), and outer (5) are coated on the outside of screen (7).
5. a kind of cable according to claim 4 is characterized in that, described twisted pair wire group number is 4 groups.
6. a kind of cable according to claim 4 is characterized in that, described skin (5) is a polythene material, and described internal layer (4) is a transparent plastic paper.
7. a kind of cable according to claim 4 is characterized in that, described isolation mount (6) is cross.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101270795A CN102646479A (en) | 2012-04-26 | 2012-04-26 | Twisted wire and cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101270795A CN102646479A (en) | 2012-04-26 | 2012-04-26 | Twisted wire and cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102646479A true CN102646479A (en) | 2012-08-22 |
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ID=46659255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101270795A Pending CN102646479A (en) | 2012-04-26 | 2012-04-26 | Twisted wire and cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN102646479A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103050183A (en) * | 2013-01-05 | 2013-04-17 | 浙江一舟电子科技股份有限公司 | UTP (unshielded twisted paired) category 6 straight skeleton cable |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005027148A1 (en) * | 2003-09-13 | 2005-03-24 | Eugene Howe | Cable and apparatus for forming the same |
| CN201340759Y (en) * | 2008-12-30 | 2009-11-04 | 上海端翔机电有限公司 | Category six digital communication local area network cable for warship |
| CN201732191U (en) * | 2010-04-02 | 2011-02-02 | 东捷光电科技(苏州)有限公司 | Flexible type fully-armored waterproof tail cable |
| CN101978434A (en) * | 2008-03-19 | 2011-02-16 | 北卡罗来纳康姆斯科普公司 | Separator tape for twisted pair in lan cable |
| CN102074283A (en) * | 2010-11-16 | 2011-05-25 | 江苏河阳线缆有限公司 | Symmetrical cable capable of keeping capacitance constant and manufacturing method thereof |
| CN202042277U (en) * | 2011-04-02 | 2011-11-16 | 张家港特恩驰电缆有限公司 | CAT6A data shielding cable |
| CN202512955U (en) * | 2012-04-26 | 2012-10-31 | 浙江一舟电子科技股份有限公司 | Twisted pair wire and cable |
| CN202601313U (en) * | 2012-04-26 | 2012-12-12 | 浙江一舟电子科技股份有限公司 | Cable |
-
2012
- 2012-04-26 CN CN2012101270795A patent/CN102646479A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005027148A1 (en) * | 2003-09-13 | 2005-03-24 | Eugene Howe | Cable and apparatus for forming the same |
| CN101978434A (en) * | 2008-03-19 | 2011-02-16 | 北卡罗来纳康姆斯科普公司 | Separator tape for twisted pair in lan cable |
| CN201340759Y (en) * | 2008-12-30 | 2009-11-04 | 上海端翔机电有限公司 | Category six digital communication local area network cable for warship |
| CN201732191U (en) * | 2010-04-02 | 2011-02-02 | 东捷光电科技(苏州)有限公司 | Flexible type fully-armored waterproof tail cable |
| CN102074283A (en) * | 2010-11-16 | 2011-05-25 | 江苏河阳线缆有限公司 | Symmetrical cable capable of keeping capacitance constant and manufacturing method thereof |
| CN202042277U (en) * | 2011-04-02 | 2011-11-16 | 张家港特恩驰电缆有限公司 | CAT6A data shielding cable |
| CN202512955U (en) * | 2012-04-26 | 2012-10-31 | 浙江一舟电子科技股份有限公司 | Twisted pair wire and cable |
| CN202601313U (en) * | 2012-04-26 | 2012-12-12 | 浙江一舟电子科技股份有限公司 | Cable |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103050183A (en) * | 2013-01-05 | 2013-04-17 | 浙江一舟电子科技股份有限公司 | UTP (unshielded twisted paired) category 6 straight skeleton cable |
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Application publication date: 20120822 |