CN203232947U - Highly insulated and shielded twin-core radio frequency cable - Google Patents
Highly insulated and shielded twin-core radio frequency cable Download PDFInfo
- Publication number
- CN203232947U CN203232947U CN 201320188684 CN201320188684U CN203232947U CN 203232947 U CN203232947 U CN 203232947U CN 201320188684 CN201320188684 CN 201320188684 CN 201320188684 U CN201320188684 U CN 201320188684U CN 203232947 U CN203232947 U CN 203232947U
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- cable
- core
- layer
- radio frequency
- insulation
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Abstract
The utility model discloses a highly insulated and shielded twin-core radio frequency cable comprising two alloy conductors. The cross section of each of the two alloy conductors is in the shape of a semi-circular arc. Each alloy conductor is successively wrapped with a fire-resistant mica tape insulation layer and a silane crosslinked ethylene-propylene rubber insulation layer outside to form an insulation cable core. The insulation cable cores are oppositely and parallel arranged in a vertical direction to form a cable core, the cable core is successively wrapped with a braided-shield layer and a winding layer outside, the winding layer is formed by spirally wound steel wires, the spirally-twisted distance is less than 3.5 mm, and a sheath layer is extruded on the outer side of the winding layer. The highly insulated and shielded twin-core radio frequency cable comprising the two alloy conductors is novel in structure and design. The design of the double insulation layers, the braided-shield layer and the spirally-twisted layer improves the insulation and shielding performance of the cable and ensures the stability of signals in a transmission process. Besides, the fire-resistant mica tape insulation layer is also capable of improving the fire-resistant performance of the cable, and the spirally-twisted layer is capable of ensuring the distortion-resistant performance of the cable, so the service lifetime of the cable is extended.
Description
Technical field:
The utility model relates to the radio frequency cable field, relates in particular to the high insulation of a kind of twin-core and shielded radio frequency cable.
Background technology:
Radio frequency cable is the cable of electromagnetic energy in the transmission radio-frequency region, and radio frequency cable is indispensable element in range radio communication system and the electronic equipment, and in radio communication and broadcasting, TV, radar, navigation, aspects such as computer and instrument are used widely.The structure of radio frequency cable is diversified, can classify according to different modes and pattern, such as: 1, by the classification of insulation pattern: entity insulated cable, airspace cable, half airspace cable; 2, press construction of cable classification: coaxial radio frequency cable, symmetrical radio frequency cable, spiral radio frequency cable.
The shield effectiveness of general symmetrical insulated cable is relative with insulation property relatively poor, makes to be subjected to external interference on the one hand easily in signals transmission; Insulation does not reach requirement on the other hand, causes transmission stability poor.
The utility model content:
At the prior art problem, the purpose of this utility model provides the high insulation of a kind of twin-core and shielded radio frequency cable, and reasonable in design has improved shielding properties and the insulation property of cable, satisfies in the environment of having relatively high expectations and uses.
The technical solution of the utility model is as follows:
The high insulation of twin-core and shielded radio frequency cable, comprise two alloy conductors, it is characterized in that: described two alloy conductor cross sections are semicircular arc, two alloy conductors are coated with fire-resistant isinglass belt insulating barrier, silane coupling ethylene propylene rubber insulating barrier formation insulated wire cores outward successively, relative and the parallel vertical formation cable core of putting of insulated wire cores, cable core is coated with woven shield, winding layer outward successively, described winding layer adopts the steel wire spiral to twine formation, spiral twines spacing and is not more than 3.5mm, and winding layer outside extrusion moulding has restrictive coating.
The high insulation of described twin-core and shielded radio frequency cable is characterized in that: described restrictive coating adopts the polyvinyl chloride extrusion moulding to constitute.
The high insulation of described twin-core and shielded radio frequency cable is characterized in that: described woven shield adopts copper wire to be woven into netted formation, and count is not less than 87%.
The utility model has the advantages that:
The utility model structural design novelty by the design of double hyer insulation layer and woven shield, spiral winding layer, has improved insulation property and the shielding properties of cable, guarantees the stability in signals transmission; In addition, the fire-resistant isinglass belt insulating barrier also can improve the fire resistance of cable, and the spiral winding layer can guarantee the warp resistance performance of cable, prolongs the useful life of cable.
Description of drawings:
Fig. 1 is structural representation of the present utility model.
Embodiment:
Referring to Fig. 1,
The high insulation of twin-core and shielded radio frequency cable, comprise two alloy conductors 1, two alloy conductor 1 cross sections are semicircular arc, two alloy conductor 1 outer fire-resistant isinglass belt insulating barrier 2, silane coupling ethylene propylene rubber insulating barrier 3 formation insulated wire cores of being coated with successively, relative and the parallel vertical formation cable core of putting of insulated wire cores, cable core is coated with woven shield 4, winding layer 5 outward successively, winding layer 5 adopts the steel wire spiral to twine formation, spiral twines spacing and is not more than 3.5mm, and winding layer 5 outside extrusion moulding have restrictive coating 6.
Woven shield 4 adopts copper wire to be woven into netted formation, and count is not less than 87%.
Claims (3)
1. a twin-core height insulate and the shielded radio frequency cable, comprise two alloy conductors, it is characterized in that: described two alloy conductor cross sections are semicircular arc, two alloy conductors are coated with fire-resistant isinglass belt insulating barrier, silane coupling ethylene propylene rubber insulating barrier formation insulated wire cores outward successively, relative and the parallel vertical formation cable core of putting of insulated wire cores, cable core is coated with woven shield, winding layer outward successively, described winding layer adopts the steel wire spiral to twine formation, spiral twines spacing and is not more than 3.5mm, and winding layer outside extrusion moulding has restrictive coating.
2. the high insulation of twin-core according to claim 1 and shielded radio frequency cable is characterized in that: described restrictive coating employing polyvinyl chloride extrusion moulding formation.
3. twin-core according to claim 1 is high insulate and the shielded radio frequency cable, and it is characterized in that: described woven shield adopts copper wire to be woven into netted formation, and count is not less than 87%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320188684 CN203232947U (en) | 2013-04-15 | 2013-04-15 | Highly insulated and shielded twin-core radio frequency cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320188684 CN203232947U (en) | 2013-04-15 | 2013-04-15 | Highly insulated and shielded twin-core radio frequency cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203232947U true CN203232947U (en) | 2013-10-09 |
Family
ID=49289051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320188684 Expired - Fee Related CN203232947U (en) | 2013-04-15 | 2013-04-15 | Highly insulated and shielded twin-core radio frequency cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203232947U (en) |
-
2013
- 2013-04-15 CN CN 201320188684 patent/CN203232947U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131009 Termination date: 20160415 |