CN201868552U - Physical foaming FEP (fluorinated ethylene propylene) insulating radio-frequency cable - Google Patents

Abstract

The utility model relates to a physical foaming FEP (fluorinated ethylene propylene) insulating radio-frequency cable, comprising an inner conductor, an insulating layer, an inner shielding layer, a shielding layer and a sheath, wherein the inner conductor is formed by stranding a plurality of tinplating copper wires, and is externally extruded with the physical foaming FEP insulating layer; the physical foaming FEP insulating layer is externally and longitudinally wrapped with the inner shielding layer with a polyester aluminium composite film; the inner shielding layer with the polyester aluminium composite film is woven with the shielding layer with the tinplating copper wires; and the shielding layer with the tin-plating copper wires is externally extruded with a layer of the FEP sheath. The physical foaming FEP insulating radio-frequency cable has the benefits that the processing working hour is saved by more than 80%. In order to improve the performance of a product, the dielectric coefficient of material is reduced, so that the attenuation of the cable is reduced, and the weight of the cable is also reduced. In short, the physical foaming FEP insulating radio-frequency cable has excellent electric performances such as high temperature resistance, high shielding, large power and low loss and the like and excellent physical performances such as small size, light weight and good flexibility and the like.

Description

Physical blowing FEP insulating radio frequency cable

Technical field

The utility model relates to a kind of physical blowing FEP insulating radio frequency cable, is widely used in the signal transmission in the higher environment of equipment, antenna inside and some temperature requirements.

Background technology

Present most of temperature resistant grade is at the radio frequency cable more than 100 ℃, and all by wrapped polytetrafluoroethylene film or push that the form of polytetrafluoroethylene realizes, the structure that this dual mode is realized exists the big and processing length of machining period shortcoming such as not grow.

Summary of the invention

In view of the deficiency that prior art exists, the utility model provides a kind of physical blowing FEP insulating radio frequency cable, and this cable adopts physical blowing FEP to extrude the structure of insulating barrier.

The utility model for achieving the above object, the technical scheme of being taked is: a kind of physical blowing FEP insulating radio frequency cable, comprise inner wire, insulating barrier, internal shield, screen, sheath, it is characterized in that: inner wire constitutes by many tinned wirds are stranded, outside inner wire, extrude one deck physical blowing FEP insulating barrier, vertical bag one deck polyester aluminium laminated film internal shield outside physical blowing PEP insulating barrier, outside polyester aluminium laminated film internal shield, weave one deck tinned wird screen, outside the tinned wird screen, extrude one deck perfluoroethylene-propylene sheath.

The beneficial effects of the utility model are: insulating barrier of the present utility model adopts the hot extrude foam forms, and processing length increases greatly, and machining period is saved more than 80% simultaneously.For enhancing product performance, insulating barrier adopts the physical blowing form to reduce the dielectric coefficient of material, thereby reduces the decay of cable, has also alleviated the weight of cable.Good physical property such as have good electric property such as high temperature resistant, high shielding, high-power, low-loss in a word and size is little, in light weight, flexibility is good.

Description of drawings

Fig. 1 is the utility model structural representation.

Embodiment

Shown in Fig. 1, physical blowing FEP insulating radio frequency cable, comprise inner wire 1, insulating barrier 2, internal shield 3, screen 4, sheath 5, inner wire 1 constitutes by many tinned wirds are stranded, outside inner wire 1, extrude one deck physical blowing FEP(perfluoroethylene-propylene copolymer) insulating barrier 2, vertical bag one deck polyester aluminium laminated film (polyester/aluminium laminated film) internal shield 3 outside physical blowing PEP insulating barrier 2, braiding one deck tinned wird screen 4 extrudes one deck perfluoroethylene-propylene sheath 5 outside tinned wird screen 4 outside polyester aluminium laminated film internal shield 3.

Claims (1)

1. physical blowing FEP insulating radio frequency cable, comprise inner wire (1), insulating barrier (2), internal shield (3), screen (4), sheath (5), it is characterized in that: inner wire (1) constitutes by many tinned wirds are stranded, outside inner wire (1), extrude one deck physical blowing FEP insulating barrier (2), vertical bag one deck polyester aluminium laminated film internal shield (3) outside physical blowing PEP insulating barrier (2), braiding one deck tinned wird screen (4) extrudes one deck perfluoroethylene-propylene sheath (5) outside tinned wird screen (4) outside polyester aluminium laminated film internal shield (3).

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