CN201540755U

CN201540755U - Electromagnetic absorbing cable

Info

Publication number: CN201540755U
Application number: CN2009201864640U
Authority: CN
Inventors: 杨趁芬; 佘晨; 芮金利; 章新能; 许栋; 程安六; 张小伟; 朱桂宝
Original assignee: Wuhu Spaceflight Special Cable Factory Co Ltd
Current assignee: Wuhu Spaceflight Special Cable Factory Co Ltd
Priority date: 2009-07-17
Filing date: 2009-07-17
Publication date: 2010-08-04
Anticipated expiration: 2019-07-17

Abstract

The utility model discloses an electromagnetic absorbing cable comprising conductors, an insulating layer, an absorbing layer and an outer protective sleeve layer. The electromagnetic absorbing cable is provided with a plurality of conductors which are externally wrapped with the insulating layer; the insulating layer is externally wrapped with the absorbing layer which is externally provided with the outer protective sleeve layer, and also externally weaved with a metal shielding layer; and the metal weaving shielding layer is externally provided with the outer protective sleeve layer; and a plurality of cables with the described structure can be used as elements to be combined into a multi-core cable according to the needs, and the protective layer is added. The electromagnetic absorbing cable utilizes the principle of compatibility in the similar material structure to design the shielding layer and the insulating layer into an integral structure, thus not only guaranteeing the shielding effect of the cable, simultaneously but also reducing the size of the cable greatly, reducing the weight and saving effective weight and volume for the whole equipment and system.

Description

The electromagnetic absorption cable

Technical field:

The utility model relates to the electric wire field, is wiring electromagnetic absorption cable in vehicle-mounted, airborne radar and the large aircraft storehouse specifically.

Background technology:

Often very responsive to electromagnetic interference in vehicle-mounted, airborne radar and large aircraft storehouse, common cable in the past adopts metal screen layer, to not influence of electromagnetic interference.

Summary of the invention:

For solving the problem that prior art exists, the spy provides a kind of electromagnetic absorption cable, adopt nonmetal shielding material to replace traditional metal screen layer, solve cable satisfies low pass filter in the system wiring in vehicle-mounted, airborne radar and large aircraft storehouse function, promptly allow the normal transmission of signal down, and cable attenuation increases suddenly under higher frequency, so that with signal intercept in frequency (10-100MHz), filter the above electromagnetic interference of 100MHz, and reduce sensitivity electromagnetic interference.

The technical solution adopted in the utility model:

The electromagnetic absorption cable comprises conductor, insulating barrier, absorbed layer, external sheath layer, it is characterized in that: have plurality of conductors, the conductor outer wrapping insulating barrier, and the insulating barrier outer wrapping absorbed layer, and absorbed layer has external sheath layer outward; Metal knitted screen is perhaps arranged outside absorbed layer, outside metal knitted screen, external sheath layer is arranged.

Described many electromagnetic absorption cable combination become multicore cable, add protective layer.

Described plurality of conductors is 7 and reaches with upper conductor that described conductor material is silver-plated copper alloy silk or tinned copper wire or silver-gilt copper wire or nickel plating copper wire; Described insulating layer material is cross-linking radiation ethylene-tetrafluoroethylene copolymer (XETFE) or cross-linking radiation Kynoar (PVDF); Described absorbed layer material is a ferrite; Described metal knitted polymeric barrier layer materials is silver-plated copper alloy silk or tinned copper wire or silver-gilt copper wire or nickel plating copper wire; The external sheath layer material is cross-linking radiation ethylene-tetrafluoroethylene copolymer (XETFE); The material of described protective layer is cross-linking radiation ethylene-tetrafluoroethylene copolymer (XETFE).

Advantage of the present utility model:

The utility model utilizes the principle of " similar compatibility " that screen and insulating barrier are designed to integral structure, promptly guaranteed the effective shield effectiveness of cable, reduced greatly simultaneously cable size, alleviated weight, for equipment or entire system save effective weight and volume.

Description of drawings:

Fig. 1 is construction of cable schematic diagram of the utility model;

Fig. 2 is the another kind of structural representation of cable of the utility model;

Fig. 3 is combined into the multi-core cable structure schematic diagram for the utility model;

Fig. 4 is combined into the another kind of structural representation of multicore cable for the utility model.

Embodiment:

Below in conjunction with accompanying drawing, the utility model is further described by embodiment.

The electromagnetic absorption cable comprises conductor 1, insulating barrier 2, absorbed layer 3, external sheath layer 5, it is characterized in that: have plurality of conductors 1, conductor 1 outer wrapping insulating barrier 2, and insulating barrier 2 outer wrapping absorbed layer 3, and external sheath layer 5 is arranged outside the absorbed layer 3; Also can be outside absorbed layer 3 braided metal screen 4, outside metal knitted screen 4, external sheath layer 5 is arranged; Also can as required many structural cables 7 described above be done elements combination becomes multicore cable, adds protective layer 6.

Described plurality of conductors is 7 and reaches with upper conductor 1 that described conductor 1 material is silver-plated copper alloy silk or tinned copper wire or silver-gilt copper wire or nickel plating copper wire; Described insulating barrier 2 materials are cross-linking radiation ethylene-tetrafluoroethylene copolymer (XETFE) or cross-linking radiation Kynoar (PVDF); Described absorbed layer 3 materials are ferrite; Described metal knitted screen 4 materials are silver-plated copper alloy silk or tinned copper wire or silver-gilt copper wire or nickel plating copper wire; Oversheath 5 layer materials are cross-linking radiation ethylene-tetrafluoroethylene copolymer (XETFE); The material of described protective layer 6 is cross-linking radiation ethylene-tetrafluoroethylene copolymer (XETFE).

Claims

1. the electromagnetic absorption cable comprises conductor, insulating barrier, absorbed layer, external sheath layer, it is characterized in that: have plurality of conductors, the conductor outer wrapping insulating barrier, and the insulating barrier outer wrapping absorbed layer, and absorbed layer has external sheath layer outward; Metal knitted screen is perhaps arranged outside absorbed layer, outside metal knitted screen, external sheath layer is arranged.

2. electromagnetic absorption cable according to claim 1 is characterized in that: described many electromagnetic absorption cable combination are become multicore cable, add protective layer.

3. electromagnetic absorption cable according to claim 1 is characterized in that: described plurality of conductors is 7 and reaches with upper conductor that described conductor material is silver-plated copper alloy silk or tinned copper wire or silver-gilt copper wire or nickel plating copper wire; Described insulating layer material is cross-linking radiation ethylene-tetrafluoroethylene copolymer or cross-linking radiation Kynoar; Described absorbed layer material is a ferrite; Described metal knitted polymeric barrier layer materials is silver-plated copper alloy silk or tinned copper wire or silver-gilt copper wire or nickel plating copper wire; The external sheath layer material is the cross-linking radiation ethylene-tetrafluoroethylene copolymer; The material of described protective layer is the cross-linking radiation Ethylene/tetrafluoroethylene.