CN108831604B

CN108831604B - Electromagnetic shielding cable for aircraft

Info

Publication number: CN108831604B
Application number: CN201810779099.8A
Authority: CN
Inventors: 于向阳; 于思佳; 姚凌虹; 张洋; 杨思恩
Original assignee: Qingdao Campus of Naval Aviation University of PLA
Current assignee: Qingdao Campus of Naval Aviation University of PLA
Priority date: 2018-07-16
Filing date: 2018-07-16
Publication date: 2023-09-29
Anticipated expiration: 2038-07-16
Also published as: CN108831604A

Abstract

The invention discloses an electromagnetic shielding cable for an aircraft, which comprises a cable core, wherein an insulating medium layer, an electromagnetic shielding layer and a rubber protective sleeve are sequentially coated outside the cable core, two semicircular protection ring plates are symmetrically hinged at a cable joint corresponding to the rubber protective sleeve, two positioning plates corresponding to the other semicircular protection ring plate are symmetrically and fixedly connected to the outer wall of one semicircular protection ring plate, a plurality of cylindrical grooves corresponding to the positioning plates are formed in the outer wall of the other semicircular protection ring plate, a thrust spring is arranged in each cylindrical groove, one end of the thrust spring is fixedly connected with the inner wall of each cylindrical groove, a limiting rod is fixedly connected to the other end of the thrust spring, a limiting hole corresponding to the limiting rod is formed in the surface of each positioning plate, and the outer wall of each semicircular protection ring plate is fixedly connected with an arc-shaped buffer plate through a plurality of uniformly arranged buffer springs. The invention has better protection to the connection part of the cable.

Description

Electromagnetic shielding cable for aircraft

Technical Field

The invention relates to the technical field of cables, in particular to an electromagnetic shielding cable for an aircraft.

Background

Cables are a generic term for items such as optical cables and electric cables. The cable has a plurality of purposes, is mainly used for controlling multiple functions such as installation, connection equipment, power transmission and the like, and is a common and indispensable thing in daily life. Because the cable is charged, special care is required for installation.

An aircraft refers to an aircraft that flies in the atmosphere heavier than air with a power plant with one or more engines producing forward thrust or tension, and with the fixed wings of the fuselage producing lift. Aircraft are one of the most common types of fixed wing aircraft. According to the type of the engine used, the aircraft can be divided into a jet aircraft and a propeller aircraft, the aircraft belongs to high-precision instruments, most of the used cables are electromagnetic shielding cables, the electromagnetic shielding cables in the prior art are not enough for protecting the connection parts, and the connection parts of the cables are easy to damage.

Disclosure of Invention

The invention aims to solve the problems that the electromagnetic shielding cable in the prior art is insufficient in protection of a connecting position and is easy to damage the connecting position of the cable.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

the utility model provides an electromagnetic shield cable for aircraft, includes the sinle silk, the outside cladding in proper order of sinle silk has insulating medium layer, electromagnetic shield layer and rubber protection cover, the rubber protection cover corresponds cable joint department symmetry hinge connection and has two semicircle protection ring plates, one of them semicircle protection ring plate's outer wall symmetry fixedly connected with two locating plates that correspond with another semicircle protection ring plate, another semicircle protection ring plate's outer wall has seted up a plurality of cylinder grooves that correspond with the locating plate, be equipped with thrust spring in the cylinder groove, thrust spring's one end and the inner wall fixed connection of cylinder groove, thrust spring's the other end fixedly connected with gag lever post, the spacing hole that corresponds with the gag lever post has been seted up to the surface of locating plate, semicircle protection ring plate's outer wall is through a plurality of buffer spring fixedly connected with arc buffer plate that evenly set up.

Preferably, the inner side wall of the semicircular protective ring plate is fixedly provided with a layer of electromagnetic shielding glass.

Preferably, the two limit sliding blocks are symmetrically and fixedly connected to the rod wall of the limit rod, and limit sliding grooves matched with the limit sliding blocks are formed in the inner wall of the cylindrical groove.

Preferably, one end of the limiting rod, which is far away from the cylindrical groove, is fixedly connected with a universal ball.

Preferably, the electromagnetic shielding layer is composed of a plurality of carbon nanotube ropes, each carbon nanotube rope comprises a plurality of carbon nanotube bundle segments growing from a carbon nanotube bundle array, each carbon nanotube bundle segment has a substantially equal length and is composed of a plurality of carbon nanotube bundles parallel to each other, and two ends of the carbon nanotube bundle segments are connected to each other by van der waals force.

Preferably, the material of the insulating medium layer is a copolymer of polyethylene terephthalate, polycarbonate and acrylonitrile-butadiene propylene-styrene.

Compared with the prior art, the invention provides the electromagnetic shielding cable for the aircraft, which has the following beneficial effects:

1. this electromagnetic shield cable for aircraft can make the cable have better electromagnetic shield effect through insulating medium layer and the electromagnetic shield layer that are equipped with, and accords with the user demand on the aircraft, and when connecting through the semicircle protection ring board that is equipped with, upset two semicircle protection ring boards cover the protection to the junction of two cables, and thrust spring promotes the gag lever post, outside pushing out the cylinder groove with the gag lever post, make gag lever post and spacing hole block, can be in the same place the firm connection of two semicircle protection ring boards, have better spacing function, and when the semicircle protection ring board is opened in the needs release locking, press the gag lever post, release the spacing locking to two semicircle protection ring boards outside pushing out the spacing hole with the gag lever post, convenient to use, the junction to the cable has better protectiveness.

2. This electromagnetic shield cable for aircraft, the outer wall through a plurality of buffer spring fixedly connected with's arc buffer board of semicircle protection annular plate, when cable junction received external impact, buffer spring atress compression produced deformation, utilizes the resilience force that buffer spring deformation produced to cushion the shock attenuation, can carry out better protection to cable junction.

3. This electromagnetic shield cable for aircraft, the fixed electromagnetic shield glass who is equipped with of inside wall through semicircle protection ring board can carry out better electromagnetic shield to cable junction, and electromagnetic shield glass's intensity is high, has explosion-proof glass's characteristic, and the protection to cable junction is better.

And the device has the same or can be realized by adopting the prior art, and the invention has better protection on the connecting part of the cable.

Drawings

Fig. 1 is a schematic structural diagram of an electromagnetic shielding cable for an aircraft according to the present invention;

fig. 2 is a schematic structural diagram of a joint of an electromagnetic shielding cable for an aircraft according to the present invention;

fig. 3 is a schematic structural view of a semicircular protection ring plate of an electromagnetic shielding cable for an aircraft according to the present invention;

fig. 4 is a schematic structural view of the portion of fig. 3A.

In the figure: 1 sinle silk, 2 insulating medium layers, 3 electromagnetic shield layers, 4 rubber protective sleeves, 5 semicircle protection annular plates, 6 locating plates, 7 cylinder grooves, 8 thrust springs, 9 gag lever post, 10 spacing holes, 11 buffer springs, 12 arc buffer plates, 13 electromagnetic shield glass, 14 spacing sliders, 15 spacing spouts, 16 universal balls.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.

In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Referring to fig. 1-4, an electromagnetic shielding cable for an aircraft comprises a cable core 1, an insulating medium layer 2, an electromagnetic shielding layer 3 and a rubber protective sleeve 4 are sequentially coated outside the cable core 1, two semicircular protective ring plates 5 are symmetrically hinged at a cable joint corresponding to the rubber protective sleeve 4, two positioning plates 6 corresponding to the other semicircular protective ring plates 5 are symmetrically and fixedly connected to the outer wall of one semicircular protective ring plate 5, a plurality of cylindrical grooves 7 corresponding to the positioning plates 6 are formed in the outer wall of the other semicircular protective ring plate 5, a thrust spring 8 is arranged in each cylindrical groove 7, one end of each thrust spring 8 is fixedly connected with the inner wall of each cylindrical groove 7, a limiting rod 9 is fixedly connected to the other end of each thrust spring 8, a limiting hole 10 corresponding to each limiting rod 9 is formed in the surface of each positioning plate 6, and an arc-shaped buffer plate 12 is fixedly connected to the outer wall of each semicircular protective ring plate 5 through a plurality of uniformly arranged buffer springs 11.

The inner side wall of the semicircular protection ring plate 5 is fixedly provided with the electromagnetic shielding glass 13, so that good electromagnetic shielding can be performed on the cable junction, the electromagnetic shielding glass 13 is high in strength, the characteristics of explosion-proof glass are achieved, and the cable junction is better protected.

Two limit sliding blocks 14 are symmetrically and fixedly connected to the rod wall of the limit rod 9, and limit sliding grooves 15 matched with the limit sliding blocks 14 are formed in the inner wall of the cylindrical groove 7, so that the limit rod 9 can slide more smoothly.

One end of the limiting rod 9, which is far away from the cylindrical groove 7, is fixedly connected with a universal ball 16, so that the limiting rod 9 can slide on the positioning plate 6 more smoothly, and the use is convenient.

The electromagnetic shielding layer 3 is composed of a plurality of carbon nanotube ropes, each carbon nanotube rope includes a plurality of carbon nanotube bundle segments grown from a carbon nanotube bundle array, each carbon nanotube bundle segment has a substantially equal length and is composed of a plurality of carbon nanotube bundles parallel to each other, and both ends of the carbon nanotube bundle segments are connected to each other by van der waals force.

The material of the insulating medium layer 2 is a copolymer of polyethylene terephthalate, polycarbonate and acrylonitrile-butadiene-propylene-styrene.

According to the invention, when the cable is used, the cable can have a good electromagnetic shielding effect through the insulating medium layer 2 and the electromagnetic shielding layer 3, the cable meets the use requirement on an airplane, and when the cables are connected through the semicircular protection ring plates 5, the two semicircular protection ring plates 5 are turned over to cover and protect the connection positions of the two cables, the thrust spring 8 pushes the limiting rod 9, the limiting rod 9 is pushed out of the cylindrical groove 7, the limiting rod 9 is clamped with the limiting hole 10, the two semicircular protection ring plates 5 can be firmly connected together, a good limiting function is achieved, when the semicircular protection ring plates 5 are required to be unlocked, the limiting rod 9 is pressed, the limiting locking of the two semicircular protection ring plates 5 can be released, the cable is convenient to use, the connection positions of the cables have good protectiveness, when the connection positions of the two cables are subjected to external impact force, the buffer spring 11 generates compression force, the elastic force is generated by the buffer spring 11, the cable is stressed, the glass is stressed, the connection positions of the two semicircular protection ring plates are stressed, the glass is better, the electromagnetic protection ring plates are stressed, and the cable is better, the glass is deformed, and the cable is better, and the glass is protected by the electromagnetic protection is better, and the shock-absorbing device is better.

The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims

1. The utility model provides an electromagnetic shield cable for aircraft, includes sinle silk (1), its characterized in that, insulating medium layer (2), electromagnetic shield layer (3) and rubber protective sheath (4) have been wrapped gradually outside sinle silk (1), the symmetrical hinge connection of cable joint department that rubber protective sheath (4) corresponds has two semicircle protection ring plates (5), one of them semicircle protection ring plate (5) outer wall symmetry fixedly connected with two locating plates (6) that correspond with another semicircle protection ring plate (5), another semicircle protection ring plate (5) outer wall has seted up a plurality of cylinder grooves (7) that correspond with locating plate (6), be equipped with thrust spring (8) in cylinder groove (7), thrust spring (8)'s one end and cylinder groove (7) inner wall fixed connection, thrust spring (8) other end fixedly connected with gag lever post (9), limit hole (10) that correspond with gag lever post (9) are seted up on the surface of locating plate (6), semicircle protection ring plate (5) outer wall is through a plurality of evenly set up buffer spring (11) fixedly connected with arc buffer plate (12);

an electromagnetic shielding glass layer (13) is fixedly arranged on the inner side wall of the semicircular protective ring plate (5);

the rod wall of the limiting rod (9) is symmetrically and fixedly connected with two limiting sliding blocks (14), and a limiting sliding groove (15) matched with the limiting sliding blocks (14) is formed in the inner wall of the cylindrical groove (7);

the electromagnetic shielding layer (3) is composed of a plurality of carbon nanotube ropes, each carbon nanotube rope comprises a plurality of carbon nanotube bundle segments growing from a carbon nanotube bundle array, each carbon nanotube bundle segment has approximately equal length and is composed of a plurality of carbon nanotube bundles which are parallel to each other, and two ends of each carbon nanotube bundle segment are connected with each other through van der Waals force.

2. An electromagnetic shielding cable for an aircraft according to claim 1, wherein the end of the limit lever (9) far away from the cylindrical groove (7) is fixedly connected with a universal ball (16).

3. An electromagnetic shielding cable for aircraft according to claim 1, characterized in that the material of the insulating medium layer (2) is a copolymer of polyethylene terephthalate, polycarbonate and acrylonitrile-butadiene-propylene-styrene.