CN218384604U

CN218384604U - Radio frequency coaxial cable

Info

Publication number: CN218384604U
Application number: CN202222033782.1U
Authority: CN
Inventors: 常国强
Original assignee: Guangdong Longlan Cable Co ltd
Current assignee: Guangdong Longlan Cable Co ltd
Priority date: 2022-08-03
Filing date: 2022-08-03
Publication date: 2023-01-24
Anticipated expiration: 2032-08-03

Abstract

The utility model discloses a radio frequency coaxial cable, including the outer jacket, the compound functional layer of inner wall fixedly connected with of outer jacket, the inner wall fixedly connected with shielding layer of compound functional layer, the inner wall fixedly connected with inner core layer of shielding layer, compound functional layer is including fire-retardant layer, the fixed surface on fire-retardant layer is connected with the resistance to pressure layer, the inner core layer includes the sandwich layer, the fixed surface on sandwich layer is connected with the protective layer. The utility model discloses an outer jacket, compound functional layer, shielding layer, inner core layer, fire-retardant layer, resistance to compression layer, sinle silk layer and protective layer's cooperation is used, can effectual solution traditional radio frequency coaxial cable at the in-process that uses, it is relatively poor to resist the bending effect, the rupture phenomenon appears easily, the problem that leads to cable life to descend, the device can guarantee the mechanical strength of cable, avoid appearing the phenomenon of bending, the insulating nature and the fire resistance of very big increase cable have improved cable life.

Description

Radio frequency coaxial cable

Technical Field

The utility model relates to the technical field of cables, specifically a radio frequency coaxial cable.

Background

The high-performance low-loss phase-stable radio-frequency coaxial cable is widely applied to high-end weapon equipment, satellite communication equipment, radar navigation and the like internationally, particularly radio-frequency coaxial cable products used by systems such as phased array radars and the like, the low-loss phase-stable radio-frequency coaxial cable is required to be used for ensuring the normal conduction of radio-frequency signals, the low-loss phase-stable radio-frequency coaxial cable is an essential key component in aviation, aerospace and new-generation weapon equipment, the conventional radio-frequency coaxial cable is poor in bending effect at present, is easy to break, and causes the service life of the cable to be reduced, and meanwhile, the flame-retardant insulation property is poor, so that the use requirement cannot be met.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a radio frequency coaxial cable possesses the advantage that improves life, and it is relatively poor to have solved present traditional radio frequency coaxial cable bending effect, very easily breaks, leads to cable life to descend, and flame retardant insulation is relatively poor simultaneously, can't satisfy user demand's problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a radio frequency coaxial cable, includes the outer jacket, the compound functional layer of inner wall fixedly connected with of outer jacket, the inner wall fixedly connected with shielding layer of compound functional layer, the inner wall fixedly connected with inner core layer of shielding layer, compound functional layer includes fire-retardant layer, the fixed surface of fire-retardant layer is connected with the pressure resistance layer, inner core layer includes the sandwich layer, the fixed surface of sandwich layer is connected with the protective layer.

Preferably, the outer sheath is made of an insulating sleeve, and the insulating sleeve is formed by wrapping a low-density polytetrafluoroethylene thin film.

Preferably, the shielding layer is made of aluminum foil, and the aluminum foil is of a woven structure.

Preferably, the flame-retardant layer is made of aluminum silicate material containing mica, and the pressure-resistant layer is made of metal woven mesh.

Preferably, the wire core layer adopts a metal wire core, and the metal wire core adopts seven mutually-twisted wires.

Preferably, the protective layer is made of polyethylene material, and the surface of the core layer is sleeved with the protective layer.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses an outer jacket, compound functional layer, shielding layer, inner core layer, fire-retardant layer, resistance to compression layer, sinle silk layer and protective layer's cooperation is used, can effectual solution traditional radio frequency coaxial cable at the in-process that uses, it is relatively poor to resist the bending effect, the rupture phenomenon appears easily, the problem that leads to cable life to descend, the device can guarantee the mechanical strength of cable, avoid appearing the phenomenon of bending, the insulating nature and the fire resistance of very big increase cable have improved cable life.

2. The utility model discloses a set up the outer jacket, adopt the insulating cover that low density polytetrafluoroethylene thin film formed around the package, can effectually play insulating effect, through setting up the shielding layer, adopt the aluminium foil material to weave and form, can effectually improve the shielding effect of preventing of this cable, through setting up fire-retardant layer, adopt the aluminium silicate material that contains mica to make, the flame retardant ability of this cable of improvement that can be very big, through setting up the resistance to pressure layer, adopt the metal mesh grid, can improve the resistance to compression and the resistant effect of bending of this cable, through setting up the protective layer, adopt the polyethylene material to make, can play the purpose of effective protection sandwich layer.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the composite functional layer of the present invention;

fig. 3 is a schematic view of the structure of the inner core layer of the present invention.

In the figure: 1. an outer jacket; 2. a composite functional layer; 201. a flame retardant layer; 202. a pressure-resistant layer; 3. a shielding layer; 4. an inner core layer; 401. a core layer; 402. and a protective layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a radio frequency coaxial cable includes an outer sheath 1, the outer sheath 1 is made of an insulating sleeve, the insulating sleeve is formed by wrapping a low-density polytetrafluoroethylene film, the inner wall of the outer sheath 1 is fixedly connected with a composite functional layer 2, the inner wall of the composite functional layer 2 is fixedly connected with a shielding layer 3, the shielding layer 3 is made of aluminum foil, the aluminum foil is of a woven structure, the inner wall of the shielding layer 3 is fixedly connected with an inner core layer 4, the composite functional layer 2 includes a flame-retardant layer 201, the flame-retardant layer 201 is made of aluminum silicate material containing mica, the pressure-resistant layer 202 is made of a metal woven mesh, the surface of the flame-retardant layer 201 is fixedly connected with a pressure-resistant layer 202, the inner core layer 4 includes a core layer 401, the core layer 401 is made of metal wire core, the metal wire core is made of seven wires twisted with each other, the surface of the core layer 401 is fixedly connected with a protective layer 402, the protective layer 402 is made of polyethylene material, the protective layer 402 is sleeved on the surface of the wire core layer 401, the insulating sleeve formed by winding a low-density polytetrafluoroethylene thin film is adopted by arranging the outer protective layer 1, the insulating effect can be effectively achieved, the shielding layer 3 is arranged and woven by adopting an aluminum foil material, the anti-shielding effect of the cable can be effectively improved, the flame-retardant layer 201 is arranged and made of an aluminum silicate material containing mica, the flame-retardant capability of the cable can be greatly improved, the pressure-resistant layer 202 is arranged and a metal woven net is adopted, the compression-resistant and bending-resistant effects of the cable can be improved, the protective layer 402 is arranged and made of a polyethylene material, the purpose of effectively protecting the wire core layer 401 can be achieved, and the protective layer 1, the composite functional layer 2, the shielding layer 3, the inner core layer 4, the flame-retardant layer 201, the pressure-resistant layer 202, the wire core layer 401 and the protective layer 402 are matched, the device can effectively solve the problems that the traditional radio frequency coaxial cable is poor in pressure-resistant anti-bending effect and easy to break, the service life of the cable is shortened, the mechanical strength of the cable can be guaranteed, the bending phenomenon is avoided, the insulativity and the fire resistance of the cable are greatly increased, and the service life of the cable is prolonged.

During the use, through outer jacket 1, adopt the thin membrane of low density polytetrafluoroethylene to wind the insulating cover that the package formed, can effectually play insulating effect, through shielding layer 3, adopt the aluminium foil material to weave and form, can effectually improve the shielding effect of preventing of this cable, through fire-retardant layer 201, adopt the aluminium silicate material that contains mica to make, the flame retardant efficiency of this cable of improvement that can be very big, through withstand voltage layer 202, adopt the metal mesh grid, can improve the resistance to compression and the resistant effect of bending of this cable, through protective layer 402, adopt the polyethylene material to make, can play the purpose of effective protection sandwich layer 401.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A radio frequency coaxial cable comprising an outer sheath (1), characterized in that: the inner wall fixedly connected with composite function layer (2) of outer jacket (1), the inner wall fixedly connected with shielding layer (3) of composite function layer (2), the inner wall fixedly connected with inner core layer (4) of shielding layer (3), composite function layer (2) are including fire-retardant layer (201), the fixed surface of fire-retardant layer (201) is connected with pressure resistance layer (202), inner core layer (4) include bobbin layer (401), the fixed surface of bobbin layer (401) is connected with protective layer (402).

2. A radio frequency coaxial cable as claimed in claim 1, wherein: the outer protective layer (1) is made of an insulating sleeve, and the insulating sleeve is formed by wrapping a low-density polytetrafluoroethylene thin film.

3. A radio frequency coaxial cable as claimed in claim 1, wherein: the shielding layer (3) is made of aluminum foil, and the aluminum foil is of a woven structure.

4. A radio frequency coaxial cable as claimed in claim 1, wherein: the flame-retardant layer (201) is made of aluminum silicate material containing mica, and the pressure-resistant layer (202) is made of metal woven mesh.

5. A radio frequency coaxial cable as claimed in claim 1, wherein: the wire core layer (401) adopts a metal wire core, and the metal wire core adopts seven mutually-twisted wires.

6. A radio frequency coaxial cable as claimed in claim 1, wherein: the protective layer (402) is made of polyethylene materials, and the protective layer (402) is sleeved on the surface of the core layer (401).