CN2919556Y

CN2919556Y - UHF low consumption watertight cable

Info

Publication number: CN2919556Y
Application number: CN 200620026144
Authority: CN
Inventors: 张立伟; 杨光; 杜红杰; 王景海; 徐晓川; 杨华; 张国菊; 候谭斌
Original assignee: Tianjin No609 Cable Co Ltd
Current assignee: Tianjin No609 Cable Co Ltd
Priority date: 2006-05-25
Filing date: 2006-05-25
Publication date: 2007-07-04
Anticipated expiration: 2016-05-25

Abstract

The utility model relates to a coaxial RF cable, in particular to a UHF low-loss watertight cable which is applicable to transmit high-power RF signals and connect with instruments and meters in ship. The utility model comprises an inner conductor, an insulation layer, an outer conductor and a sheath; and is characterized in that: which is composed of an isolated layer and fillers as well, wherein the inner conductor is covered with the insulation layer, the outer conductor is meshed on the surface of the insulation layer and fillers is filled in the gap in the outer conductor, and then which wraps the isolated layer, the sheath is pressed on the surface. The utility model has the characteristics of: high transmission frequency, less power losses, low standing wave ratio, and high watertightness, strong adaptable capacity in severe environment, good wear resistance and anti-torsion. The utility model is extremely suitable to be used in transmitting high-power RF signals in ship.

Description

UHF low-loss watertight cable

Technical field

The utility model relates to a kind of radio frequency coaxial-cable, the UHF low-loss watertight cable that particularly a kind of naval vessel is connected with instrument and meter with transmission high-power RF signal.

Background technology

Decay under high frequency greatly with the common radio frequency cable of transmitting radio frequency signal in the naval vessel at present, be unfavorable for high-frequency high-power transmission use, and the radio frequency coaxial-cable of general physical blowing is harder, is unfavorable for the alternating bending use, and do not possess watertightness, be unsuitable for the naval vessel environment and use.

Summary of the invention

For solving the problem that prior art exists, the utility model provides a kind of UHF low-loss watertight cable.The technical scheme that the utility model is taked for achieving the above object is: a kind of UHF low-loss watertight cable includes inner wire, insulating barrier, outer conductor, sheath; It is characterized in that: also include separator, filler; Described inner wire outside extruded insulation layer, insulating barrier outside braided outer conductor and behind place, outer conductor slit coating filler wrapped again separator, outermost is extruded with sheath.

Owing to adopted said structure to the utlity model has following beneficial effect: 1. transmission frequency height (can reach 2000MHZ), because insulating barrier has adopted physical blowing " skin-bubble-Pi " structure, have less dielectric constant and dielectric dissipation factor, even under high frequency, still have lower power loss, be suitable for the high power transmission radiofrequency signal.2. watertightness height (can reach 4.4Mpa), insulating barrier is physical blowing " skin-bubble-Pi " structure, outer conductor is braiding structure intermediate gaps place's filled silicon rubber and water uptake expansion material, therefore skin is surrounded by the wear-resisting type polyurethane jacket again, is a kind of naval vessel under water with the high radio frequency cable of low-loss watertightness.3. flexibility is good, can alternating bending (can reach 2000 times), and its bending radius little (can reach 100mm), after standing alternating bending, conductor does not rupture, and sheath does not ftracture.4. the adverse environment resistant adaptive capacity is strong, can stand low temperature, high temperature, damp and hot tandem test.

Description of drawings

Fig. 1 is the utility model structural representation and as Figure of abstract.

Fig. 2 is the utility model outer conductor layer schematic diagram.

Among the figure: 1. inner wire, 2. insulating barrier, 3. outer conductor, 4. separator, 5. sheath, 6. filler.

Embodiment

By Fig. 1, shown in Figure 2, the inner wire 1 of UHF low-loss watertight cable is to draw the conductor wire core that forms and pass through anneal by oxygen-free copper bar, the outside of inner wire 1 extrudes the insulating barrier 2 of polythene physics foaming " skin-bubble-Pi " structure, braiding tough pitch copper outer conductor 3 outside insulating barrier 2, and at its braiding slit place's coating greasy for preventing water or silicon rubber filling thing 6.And then the wrapped intumescent separator 4 that blocks water, extrude polyurethane elastomer sheathing 5 at last.

Claims

1. a UHF low-loss watertight cable includes inner wire (1), insulating barrier (2), outer conductor (3), sheath (5), it is characterized in that: also include separator (4), filler (6); Described inner wire (1) outside extruded insulation layer (2), braided outer conductor (3) insulating barrier (2) outside, and behind outer conductor (3) slit place's coating filler (6) wrapped again separator (4), outermost is extruded with sheath (5).