CN203444854U - Composite cable for resisting electromagnetic interference - Google Patents
Composite cable for resisting electromagnetic interference Download PDFInfo
- Publication number
- CN203444854U CN203444854U CN201320343405.6U CN201320343405U CN203444854U CN 203444854 U CN203444854 U CN 203444854U CN 201320343405 U CN201320343405 U CN 201320343405U CN 203444854 U CN203444854 U CN 203444854U
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- sheath
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- coated
- copper
- conductor
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Abstract
This utility model discloses a communication composite cable for resisting electromagnetic interference, comprising a steel conductor, a copper axle conductor, a copper axle conductor, eight copper wires and an outer sheath. Four pairs of stranded wires for communication are obtained through eight copper wires stranded pairwise. The outer sheath body comprises a first terminal sheath, a second terminal sheath, and a third terminal sheath. A herringbone connection part is arranged in the center surrounded by the first terminal sheath, the second terminal sheath and the third sheath. The first terminal sheath wraps the outer surface of the steel conductor, the second terminal sheath wraps the outer surface of a first inner sheath layer, and the third terminal sheath wraps the outer surface of a second inner sheath layer. A plurality of metal wires are arranged at interval. One ends of the metal wires are lapped on the surface of the steal conductor, and the other ends of the wires are electrically connected to a copper-wire-woven shielding layer. The communication composite cable for resisting electromagnetic interference avoids the signal mutual interference which affects the performance and greatly enhances the capabilities of resisting signal jamming and stretching.
Description
Technical field
The utility model relates to a kind of telecommunication cable, relates in particular to a kind of communication composite cable of anti-electromagnetic interference.
Background technology
The structure of common single type telecommunication cable: its primary structure of the cable of pair twist structure is that copper conductor extrudes one deck insulation outward, stranding after single line pair twist, outside adopts the structure of polyolefin oversheath, coaxial cable primary structure is that inner wire extrudes outward or the insulation of wrapped one deck, then adopt aluminium foil or weave as polyolefin after outer conductor the structure as oversheath, said structure limitation due to telecommunication cable, in exterior finish distributing system, automated detection system, cause that stretching is large, quality is unstable, it is loaded down with trivial details to connect up, unreliable and affect serviceability.
Summary of the invention
The utility model provides a kind of communication composite cable of anti-electromagnetic interference, and this communication composite cable further reduces cross-talk and the signal of telecommunication delay inequality of the communications cable, and has avoided the power loss of signal, has improved the stability of signal power and performance.
For achieving the above object, the technical solution adopted in the utility model is: a kind of communication composite cable of anti-electromagnetic interference, comprising: steel conductor, copper spindle guide body, eight copper conductor and oversheath bodies that are coated with polyethylene layer; Described copper spindle guide external surface is coated with plastic insulating layer, and this plastic insulating layer outer surface is coated with wire sheathing, and the first inner restrictive coating is coated on described wire sheathing outer surface;
Described eight copper conductors are four pairs of twisted wires pair as information communication of stranded formation between two, described four twisted pair wire centering the first twisted wires to, the second twisted wire to, the 3rd twisted wire to the 4th twisted wire to being arranged in order counterclockwise and stranded formation conduction cable core, the first twisted wire to the 3rd twisted wire pair and the second twisted wire to the 4th twisted wire to alternately, described four twisted pair wires are all coated with foil shielding layer to outer surface separately, one polyester belt is wrapped in described foil shielding layer outer surface, and the second inner restrictive coating is coated on described polyester belt outer surface;
Described oversheath body comprises the first sub-sheath, the second sub-sheath and the 3rd sub-sheath, this first sub-sheath, the second sub-sheath and the 3rd sub-sheath center have one " people " font connecting portion, the first muscle portion of company, second of this " people " font connecting portion connects muscle portion and the 3rd muscle portion of company is connected respectively to described the first sub-sheath, the second sub-sheath and the 3rd sub-sheath, the first sub-sheath is coated on described steel conductor outer surface, the second sub-sheath is coated on described the first inner restrictive coating outer surface, and the 3rd sub-sheath is coated on described the second inner restrictive coating outer surface;
Some plain conductors alternately, this plain conductor one end is wound in described steel conductive surface, and the plain conductor other end connects muscle portion, the 3rd through described the first sub-sheath, first successively and connects muscle portion and the 3rd sub-sheath and be electrically connected to described proof copper-wire braided screen.
In technique scheme, further improve technical scheme as follows:
1, in such scheme, described adjacent 2 plain conductors be spaced apart 2.5 ~ 3.5 of conduction cable core twisting pitch
doubly.
2,, in such scheme, described the first muscle portion of company, second connects muscle portion and the first adjacent angle of muscle portion of company is 120 °.
3, in such scheme, described foil shielding layer is comprised of laminated polyester film and the aluminium foil layer that is positioned at its medial surface, and described polyester film layer thickness is 0.020 ± 0.002mm, and described aluminium foil layer thickness is 0.014 ± 0.002 mm.
Because technique scheme is used, the utility model compared with prior art has following advantages:
The communication composite cable of the anti-electromagnetic interference of the utility model, it comprises some plain conductors alternately, this plain conductor one end is wound in described steel conductive surface, the plain conductor other end connects muscle portion, the 3rd through described the first sub-sheath, first successively and connects muscle portion and the 3rd sub-sheath and be electrically connected to described proof copper-wire braided screen, reduce cross-talk and the signal of telecommunication delay inequality of the communications cable, improved the stability of signal power and performance; Secondly, it comprises some plain conductors alternately, this plain conductor one end is wound in described steel conductive surface, the plain conductor other end connects muscle portion, the 3rd through described the first sub-sheath, first successively and connects muscle portion and the 3rd sub-sheath and be electrically connected to described proof copper-wire braided screen, and described adjacent 2 plain conductors be spaced apart 2.5 ~ 3.5 times of conduction cable core twisting pitch, further reduce cross-talk and the signal of telecommunication delay inequality of the communications cable, and avoided the power loss of signal, improved the stability of signal power and performance.
Accompanying drawing explanation
Accompanying drawing 1 is the communication composite cable structure schematic diagram of the anti-electromagnetic interference of the utility model.
In above accompanying drawing: 1, steel conductor; 2, copper spindle guide body; 3, copper conductor; 31, polyethylene layer; 4, oversheath body; 41, the first sub-sheath; 42, the second sub-sheath; 43, the 3rd sub-sheath; 5, plastic insulating layer; 6, wire sheathing; 7, the first inner restrictive coating; 8, conduction cable core; 81, the first twisted wire pair; 82, the second twisted wire pair; 83, the 3rd twisted wire pair; 84, the 4th twisted wire pair; 9, foil shielding layer; 10, polyester belt; 11, the second inner restrictive coating; 12, " people " font connecting portion; 121, first connects muscle portion; 122, second connects muscle portion; 123, the 3rd connects muscle portion; 13, plain conductor; 14, proof copper-wire braided screen.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described:
Embodiment: a kind of communication composite cable of anti-electromagnetic interference, comprising: steel conductor 1, copper spindle guide body 2, eight copper conductor 3 and oversheath bodies 4 that are coated with polyethylene layer 31; Described copper spindle guide body 2 outer surfaces are coated with plastic insulating layer 5, and these plastic insulating layer 5 outer surfaces are coated with wire sheathing 6, the first inner restrictive coatings 7 and are coated on described wire sheathing 6 outer surfaces;
Described eight copper conductors 3 are four pairs of twisted wires pair as information communication of stranded formation between two, described four twisted pair wire centering the first twisted wires are arranged in order 84 the 83 and the 4th twisted wire the 82, the 3rd twisted wire and stranded formation conduction cable core 8 counterclockwise to the 81, second twisted wire, the first twisted wire to the 81 and the 3rd twisted wire to the 83 and second twisted wire to the 82 and the 4th twisted wire to 84 alternately, described four twisted pair wires are all coated with foil shielding layer 9 to outer surface separately, one polyester belt 10 is wrapped in described foil shielding layer 9 outer surfaces, and the second inner restrictive coating 11 is coated on described polyester belt 10 outer surfaces;
Described oversheath body 4 comprises the first sub-sheath 41, the second sub-sheath 42 and the 3rd sub-sheath 43, this first sub-sheath 41, the second sub-sheath 42 and the 3rd sub-sheath 43 centers have one " people " font connecting portion 12, first of this " people " font connecting portion 12 connects muscle portion 121, the second muscle portion 122 of company and the 3rd connects muscle portion 123 and is connected respectively to described the first sub-sheath 41, the second sub-sheath 42 and the 3rd sub-sheath 43, the first sub-sheath 41 is coated on described steel conductor 1 outer surface, the second sub-sheath 42 is coated on described the first inner restrictive coating 7 outer surfaces, the 3rd sub-sheath 43 is coated on described the second inner restrictive coating 11 outer surfaces,
Between described the 3rd sub-sheath 43 and the first inner restrictive coating 11, be provided with proof copper-wire braided screen 14, both can not increase external diameter, can guarantee again the tractive effort needing, thereby guaranteed the adhesive between the 3rd sub-sheath 43 and the first inner restrictive coating 11, played humidification, there is very large tensile strength, also can eliminate or reduce the stress of cable when mobile or twisting states, the useful life of improving cable; Secondly, further strengthened interference free performance.
Some plain conductors 13 alternately, these plain conductor 13 one end are wound in described steel conductor 1 surface, and plain conductor 13 other ends connect muscle portion 121, the 3rd through described the first sub-sheath 41, first successively and connect muscle portion 123 and the 3rd sub-sheath 43 and be electrically connected to described proof copper-wire braided screen 14; Described adjacent 2 plain conductors 13 be spaced apart 2.5 ~ 3.5 times of conduction cable core 8 twisting pitch.
Above-mentioned four twisted pair wire strands form conduction cable core 8, and these conduction cable core 8 twisting pitch are that the 4th twisted wire is to 10 of 84 pitches times.
Above-mentioned foil shielding layer 9 is comprised of laminated polyester film and the aluminium foil layer that is positioned at its medial surface, and described polyester film layer thickness is 0.020 ± 0.002mm, and described aluminium foil layer thickness is 0.014 ± 0.002 mm; Above-mentioned the first muscle portion of company, second connects muscle portion and the first adjacent angle of muscle portion of company is 120 °; Above-mentioned steel conductor 1 and copper conductor 3 be annealed PROCESS FOR TREATMENT all.
Foregoing is further described below.
The design of aluminum foil material
According to telecommunication cable standard and requirement, shielding is comprised of one deck one side clad aluminum foil and a drain wire, and one side clad aluminum foil requires to refer to following table:
The specification requirement of one side clad aluminum foil
Weave copper wire material used design
According to telecommunication cable standard and requirement, the braided material of armour can be single circular copper wire or tin-plating round copper wire, allows unidirectional sub-thread broken string length to be not more than 150mm, and trimmed is answered in broken string termination
The main performance index of finished cable
Conductor DC resistance (20 ℃) :≤9 6 Ω/km;
The characteristic impedance of paired cable (20 ℃): 100 ± 15 Ω;
The characteristic impedance of coaxial cable (20 ℃): 75 ± 15 Ω;
The insulation resistance of cable: >=10000 M Ω km.
Above-described embodiment is only explanation technical conceive of the present utility model and feature, and its object is to allow person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection range of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection range of the present utility model.
Claims (4)
1. a communication composite cable for anti-electromagnetic interference, is characterized in that: comprising: steel conductor (1), copper spindle guide body (2), eight copper conductor (3) and oversheath bodies (4) that are coated with polyethylene layer (31); Described copper spindle guide body (2) outer surface is coated with plastic insulating layer (5), and this plastic insulating layer (5) outer surface is coated with wire sheathing (6), and the first inner restrictive coating (7) is coated on described wire sheathing (6) outer surface;
Described eight copper conductors (3) are four pairs of twisted wires pair as information communication of stranded formation between two, described four twisted pair wire centering the first twisted wires are to (81), the second twisted wire is to (82), the 3rd twisted wire is to (83) and the 4th twisted wire is arranged in order counterclockwise to (84) and stranded formation conduction cable core (8), the first twisted wire to (81) and the 3rd twisted wire to (83) and the second twisted wire to (82) and the 4th twisted wire to (84) alternately, described four twisted pair wires are all coated with foil shielding layer (9) to outer surface separately, one polyester belt (10) is wrapped in described foil shielding layer (9) outer surface, the second inner restrictive coating (11) is coated on described polyester belt (10) outer surface,
Described oversheath body (4) comprises the first sub-sheath (41), the second sub-sheath (42) and the 3rd sub-sheath (43), this first sub-sheath (41), the second sub-sheath (42) and the 3rd sub-sheath (43) center have one " people " font connecting portion (12), first of this " people " font connecting portion (12) connects muscle portion (121), the second muscle portion (122) of company and the 3rd connects muscle portion (123) and is connected respectively to described the first sub-sheath (41), the second sub-sheath (42) and the 3rd sub-sheath (43), the first sub-sheath (41) is coated on described steel conductor (1) outer surface, the second sub-sheath (42) is coated on described the first inner restrictive coating (7) outer surface, the 3rd sub-sheath (43) is coated on described the second inner restrictive coating (11) outer surface,
Some plain conductors (13) alternately, this plain conductor (13) one end is wound in described steel conductor (1) surface, and plain conductor (13) other end connects muscle portion (121), the 3rd through described the first sub-sheath (41), first successively and connects muscle portion (123) and the 3rd sub-sheath (43) and be electrically connected to proof copper-wire braided screen (14).
2. communication composite cable according to claim 1, is characterized in that: described adjacent 2 plain conductors (13) be spaced apart 2.5 ~ 3.5 times of conduction cable core (8) twisting pitch.
3. communication composite cable according to claim 1, it is characterized in that: described foil shielding layer (9) is comprised of laminated polyester film and the aluminium foil layer that is positioned at its medial surface, described polyester film layer thickness is 0.020 ± 0.002mm, and described aluminium foil layer thickness is 0.014 ± 0.002 mm.
4. communication composite cable according to claim 1, is characterized in that: described the first muscle portion of company, second connects muscle portion and the first adjacent angle of muscle portion of company is 120 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320343405.6U CN203444854U (en) | 2013-06-14 | 2013-06-14 | Composite cable for resisting electromagnetic interference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320343405.6U CN203444854U (en) | 2013-06-14 | 2013-06-14 | Composite cable for resisting electromagnetic interference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203444854U true CN203444854U (en) | 2014-02-19 |
Family
ID=50095882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320343405.6U Expired - Lifetime CN203444854U (en) | 2013-06-14 | 2013-06-14 | Composite cable for resisting electromagnetic interference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203444854U (en) |
-
2013
- 2013-06-14 CN CN201320343405.6U patent/CN203444854U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140219 |
|
| CX01 | Expiry of patent term |