CN103971847A - Framework type data transmission cable of transponder - Google Patents
Framework type data transmission cable of transponder Download PDFInfo
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- CN103971847A CN103971847A CN201410121045.4A CN201410121045A CN103971847A CN 103971847 A CN103971847 A CN 103971847A CN 201410121045 A CN201410121045 A CN 201410121045A CN 103971847 A CN103971847 A CN 103971847A
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- skeleton
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- transmission cable
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Abstract
The invention relates to the technical field of cables for transmitting message data and electric energy of land electronic units (LEU for short) on railway tracks, in particular to a framework type data transmission cable of a transponder. The framework type data transmission cable comprises four copper conductors, a taped layer and a framework. Insulating layers wrap the copper conductors, the section of the framework is 'crossed'-shaped, connecting lines of four corners of the framework are of regular square structures, a regular square is formed by the four copper conductors in an encircled manner, and the four copper conductors are respectively arranged on frames of the framework; the taped layer, a single-surface aluminum-plastic tape layer, a first lining layer, an aluminum sheath, a second lining layer, an armor layer and an outer sheath sequentially wrap the four insulating layers from the inside to the outside; two leakage copper wires are arranged between the taped layer and the single-surface aluminum-plastic tape layer. When the framework type data transmission cable is used, the uniformity and the symmetry of cable core structures can be guaranteed, the transmission performance of the cable can be improved, and excessively high characteristic impedance deviation between two working groups can be prevented. The framework type data transmission cable has the advantages of simple structure, reasonableness in setting, low manufacturing cost and the like.
Description
Technical field
The present invention relates to for transmitting railroad track upper ground surface electronic unit message data and the cable technology field of electric energy, particularly a kind of skeleton answering machine data transmission cable of (being called for short LEU).
Background technology
Answering machine data transmission cable is for being connected of transponder and LEU, message data and the electric energy of transmission LEU.As everyone knows, when the characteristic impedance of electric wire self is not mated with the load impedance of terminal, the reflection that can produce signal, thereby the transmission performance of reduction cable.
Because conductor and the outer insulation diameter of answering machine data transmission cable are bigger than normal, self the internal stress effect that is subject to produce in stranded process, make cable core that deformation easily occur in stranded process, the structure that assumes diamond in shape (the copper conductor line of centres of four insulated single wires assumes diamond in shape), the structural asymmetry that causes cable core, the characteristic impedance characteristic impedance bigger than normal, another group working group of a pair of working group of regular appearance is less than normal, and deviation generally reaches 5-10 Ω.Because answering machine data transmission cable is 120 ± 5 Ω in the characteristic impedance of 1.8MHz, the standard-required margin of tolerance is little, so the asymmetric cable transmission performance index that causes of cable core structure is not up to standard.
Therefore be necessary the structure of existing cable to carry out technological innovation further.
Summary of the invention
The object of the invention is to defect and deficiency for prior art, provide a kind of simple in structure, skeleton answering machine data transmission cable reasonable in design, easy to use.
For achieving the above object, the technical solution used in the present invention is:
A kind of skeleton answering machine data transmission cable of the present invention, comprise four insulated single wires, tape wrap layer and two earial drainage copper conductors, the insulating barrier that insulated single wire by copper conductor and copper conductor outer wrapping forms, it also comprises the skeleton at the center of being arranged on, the cross section of skeleton is " ten " word shape, four angle lines of skeleton are positive tetragonal structure, and four insulated single wires surround positive square shape, and four copper conductors are separately positioned on the frame-saw of skeleton; Tape wrap layer is wrapped in four insulated single wires, tape wrap layer is wrapped with one side plastic-aluminum belt, the aluminium material surface of one side plastic-aluminum belt inwardly arranges, one side plastic-aluminum belt is wrapped with inner covering one, inner covering one is wrapped with aluminium sheath, aluminium sheath is wrapped with inner covering two, and inner covering two is wrapped with armour, and armour is wrapped with oversheath; Between tape wrap layer and one side plastic-aluminum belt; Two earial drainage copper conductors are arranged between tape wrap layer and one side plastic-aluminum belt.
Further, four outer surfaces of described skeleton are arc shape, and the arc diameter of this outer surface and the length of side of skeleton should equate with insulated single wire external diameter, are 3.75mm; The arc degree of each outer surface is 90 degree.
Further, the centre of described skeleton is provided with through hole.
Adopt after said structure, beneficial effect of the present invention is: a kind of skeleton answering machine data transmission cable of the present invention, comprise four copper conductors, tape wrap layer and two earial drainage copper conductors, copper conductor is all wrapped in insulating barrier outward, it also comprises the skeleton at the center of being arranged on, and the cross section of skeleton is " ten " word shape, and four angle lines of skeleton are positive tetragonal structure, four insulated single wires surround positive square shape, and four insulated single wires are separately positioned on the frame-saw of skeleton; Tape wrap layer is wrapped in four insulating barriers, tape wrap layer is wrapped with one side plastic-aluminum belt, the aluminium material surface of one side plastic-aluminum belt inwardly arranges, one side plastic-aluminum belt is wrapped with inner covering one, inner covering one is wrapped with aluminium sheath, aluminium sheath is wrapped with inner covering two, and inner covering two is wrapped with armour, and armour is wrapped with oversheath; Two earial drainage copper conductors are arranged between tape wrap layer and one side plastic-aluminum belt.Using when of the present invention, by " ten " font skeleton just, fixing four insulated single wires, making the position of insulated single wire more firm; Four angle lines of skeleton are positive tetragonal structure, can strengthen like this balance of skeleton, make cable core structure stable; Guarantee the property symmetrically of cable core structure, improved the transmission performance of cable, avoided the characteristic impedance deviation between Liao Liangge working group excessive; Composite construction by multilayer carrys out firm and protection cable simultaneously, makes the internal structure of cable compacter, and on traditional cable basis, increases new construction layer, does not all increase the outside diameter of cable, thereby can significantly not promote manufacturing cost.The advantages such as the present invention has simple in structure, arranges rationally, and cost of manufacture is low.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of skeleton;
Description of reference numerals:
1, insulating barrier; 2, copper conductor; 3, skeleton; 3-1, through hole; 3-2, outer surface; 4, tape wrap layer; 5, one side plastic-aluminum belt; 6, inner covering one; 7, aluminium sheath; 8, inner covering two; 9, armour; 10, oversheath; 11, earial drainage copper conductor; L, the length of side.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.
As shown in Figure 1-2, a kind of skeleton answering machine data transmission cable of the present invention comprises four copper conductors 2, tape wrap layer 4 and two earial drainage copper conductors 11, the outer insulating barrier 1 that is all wrapped in of copper conductor 2, the insulating barrier 1 that insulated single wire by copper conductor 2 and copper conductor outer wrapping forms, it also comprises the skeleton 3 at the center of being arranged on, and the cross section of skeleton 3 is " ten " word shape, and four angle lines of skeleton 3 are positive tetragonal structure, can strengthen the balance of skeleton 3 like this, make cable core structure stable.
Four insulated single wires that copper conductor 2 and insulating barrier 3 form surround positive square shape, and four insulated single wires that copper conductor 2 and insulating barrier 3 form are separately positioned on the frame-saw of skeleton 3; Tape wrap layer 4 is wrapped in four insulating barriers 1, and tape wrap layer 4 is wrapped with one side plastic-aluminum belt 5; Two earial drainage copper conductors 11 are arranged between tape wrap layer 4 and one side plastic-aluminum belt 5.When cable produces eddy current static under strong-electromagnetic field environment, the aluminium material surface of one side plastic-aluminum belt 5 inwardly arranges, and can allow like this aluminium material surface be connected with earial drainage copper conductor 11, thereby play earial drainage effect.
One side plastic-aluminum belt 5 is wrapped with inner covering 1, and inner covering 1 is wrapped with aluminium sheath 7, and aluminium sheath 7 is wrapped with inner covering 28, and inner covering 28 is wrapped with armour 9, and armour 9 is wrapped with oversheath 10.Skeleton 3 adopts PE material to make, and dielectric constant is relatively low.
As a kind of optimal way of the present invention, four outer surface 3-2 of described skeleton 3 are arc shape, and the arc diameter of this outer surface 3-2 and the length of side L of skeleton 3 should equate with the external diameter of insulating barrier 1, are 3.75mm; The arc degree of outer surface 3-2 is 90 degree.The outer surface 3-2 of this arc shape can allow four insulating barriers 1 more can be adjacent to the outer surface 3-2 of skeleton 3, makes cable core structure more stable.
Do not increasing on the basis of the outside diameter of cable, the centre of described skeleton 3 is provided with through hole 3-1, and the diameter of this through hole 3-1 is 0.8mm, by increasing air sectional area, reduces the relative dielectric constant of cable, thereby effectively reduces the impact of skeleton 3 on electric property.
Using when of the present invention, by " ten " font skeleton just, fixing four insulating barriers, making the position of insulating barrier more firm, by the centre at skeleton, be provided with through hole, can increase air sectional area, can effectively reduce the impact of skeleton on electric property; Guarantee the property symmetrically of cable core structure, improved the transmission performance of cable, avoided the characteristic impedance deviation between Liao Liangge working group excessive; Composite construction by multilayer carrys out firm and protection cable simultaneously, makes the internal structure of cable compacter, and on traditional cable basis, increases new construction layer, does not all increase the outside diameter of cable, thereby can significantly not promote manufacturing cost.The advantages such as the present invention has simple in structure, arranges rationally, and cost of manufacture is low.In addition, this is simple in structure, reasonable in design, low cost of manufacture.
The above is only better embodiment of the present invention, and the equivalence of doing according to structure, feature and principle described in patent claim of the present invention therefore all changes or modifies, and is included in patent claim of the present invention.
Claims (3)
1. a skeleton answering machine data transmission cable, it is characterized in that: comprise four copper conductors (2), tape wrap layer (4) and two earial drainage copper conductors (11), the outer insulating barrier (1) that is all wrapped in of copper conductor (2), it also comprises the skeleton (3) at the center of being arranged on, the cross section of skeleton (3) is " ten " word shape, four angle lines of skeleton (3) are positive tetragonal structure, four insulated single wires that are comprised of copper conductor (2) and insulating barrier (1) surround positive square shape
Tape wrap layer (4) is wrapped in four insulating barriers (1), tape wrap layer (4) is wrapped with one side plastic-aluminum belt (5), the aluminium material surface of one side plastic-aluminum belt (5) inwardly arranges, one side plastic-aluminum belt (5) is wrapped with inner covering one (6), inner covering one (6) is wrapped with aluminium sheath (7), aluminium sheath (7) is wrapped with inner covering two (8), inner covering two (8) is wrapped with armour (9), and armour (9) is wrapped with oversheath (10); Two earial drainage copper conductors (11) are arranged between tape wrap layer (4) and one side plastic-aluminum belt (5).
2. a kind of skeleton answering machine data transmission cable according to claim 1, it is characterized in that: four outer surfaces (3-2) of described skeleton (3) are arc shape, the length of side (L) of the arc diameter of this outer surface (3-2) and skeleton (3) should equate with the external diameter of insulating barrier (1), be 3.75mm; The arc degree of outer surface (3-2) is 90 degree.
3. according to the arbitrary described a kind of skeleton answering machine data transmission cable of claim 1 or 2, it is characterized in that: the centre of described skeleton (3) is provided with through hole (3-1), the diameter of this through hole (3-1) is 0.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410121045.4A CN103971847A (en) | 2014-03-28 | 2014-03-28 | Framework type data transmission cable of transponder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410121045.4A CN103971847A (en) | 2014-03-28 | 2014-03-28 | Framework type data transmission cable of transponder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103971847A true CN103971847A (en) | 2014-08-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410121045.4A Pending CN103971847A (en) | 2014-03-28 | 2014-03-28 | Framework type data transmission cable of transponder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103971847A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104392783A (en) * | 2014-12-02 | 2015-03-04 | 安徽渡江电缆集团有限公司 | Compact anti-extrusion cable |
| CN114388183A (en) * | 2022-01-05 | 2022-04-22 | 通鼎互联信息股份有限公司 | Tensile shielding light high-frequency digital communication cable |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2664125Y (en) * | 2003-10-20 | 2004-12-15 | 西安西电光电缆有限责任公司 | Data-transmission cable for point type responder |
| DE202007010032U1 (en) * | 2007-07-19 | 2008-11-27 | Leoni Kabel Holding Gmbh & Co. Kg | Data transmission line |
| CN202275664U (en) * | 2011-10-17 | 2012-06-13 | 安徽新宇缆业集团有限公司 | Point type responser data transmission cable |
| CN202930091U (en) * | 2012-08-14 | 2013-05-08 | 江苏通鼎光电科技有限公司 | Full inflaming retarding transponder data transmission cable |
| CN203760211U (en) * | 2014-03-28 | 2014-08-06 | 江苏通鼎光电科技有限公司 | Skeleton balise data transmission cable |
-
2014
- 2014-03-28 CN CN201410121045.4A patent/CN103971847A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2664125Y (en) * | 2003-10-20 | 2004-12-15 | 西安西电光电缆有限责任公司 | Data-transmission cable for point type responder |
| DE202007010032U1 (en) * | 2007-07-19 | 2008-11-27 | Leoni Kabel Holding Gmbh & Co. Kg | Data transmission line |
| CN202275664U (en) * | 2011-10-17 | 2012-06-13 | 安徽新宇缆业集团有限公司 | Point type responser data transmission cable |
| CN202930091U (en) * | 2012-08-14 | 2013-05-08 | 江苏通鼎光电科技有限公司 | Full inflaming retarding transponder data transmission cable |
| CN203760211U (en) * | 2014-03-28 | 2014-08-06 | 江苏通鼎光电科技有限公司 | Skeleton balise data transmission cable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104392783A (en) * | 2014-12-02 | 2015-03-04 | 安徽渡江电缆集团有限公司 | Compact anti-extrusion cable |
| CN114388183A (en) * | 2022-01-05 | 2022-04-22 | 通鼎互联信息股份有限公司 | Tensile shielding light high-frequency digital communication cable |
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Application publication date: 20140806 |