CN104036851A

CN104036851A - Cable

Info

Publication number: CN104036851A
Application number: CN201410206545.8A
Authority: CN
Inventors: 韩文都; 李斌
Original assignee: Kunshan Liantao Electronics Co Ltd
Current assignee: Kunshan Liantao Electronics Co Ltd
Priority date: 2014-05-16
Filing date: 2014-05-16
Publication date: 2014-09-10

Abstract

The invention relates to a cable. The cable comprises at least one conductor, as well as insulators, a protective layer and an outer wrapping layer which wrap the peripheries of the conductors sequentially; the protective layer comprises a magnetic medium, an adhesive and a Mylar layer; the magnetic medium is adhered on the surface of the Mylar layer by means of the adhesive; and therefore, the EMC performance of the whole cable can be improved, and the cable has excellent EMC performance from the head to the tail.

Description

Cable

Technical field

The present invention relates to a kind of cable.

Background technology

EMC (Electro Magnetic Compatibility, Electro Magnetic Compatibility) be defined as " equipment and system in its electromagnetic environment, can normally work and not to environment in the ability of anything formation electromagnetic disturbance that can not bear ", the meaning that this definition comprises two aspects, first, this equipment should be able to normally be worked under certain electromagnetic environment, and this equipment should possess certain electromagnetic immunity (EMS); Secondly the electromagnetic disturbance that, this equipment self produces can not produce excessive impact to other electronic products, i.e. electromagnetic disturbance (EMI).

For solving the EMC performance of equipment, tradition settling mode is that a shielding magnet ring is set on cable, and shielding magnet ring is generally head or the afterbody of being located at cable, namely input signal or output signal is played to shielding, prevent from harassing the effect of other electronic products, as the cable on keyboard simultaneously.Conventional wire cable is not structurally considered EMC aspect, is in most cases in the time that cable is assembled, to add as required magnet ring.

Summary of the invention

The object of the present invention is to provide a kind of cable that improves EMC performance that has.

For realizing aforementioned object, the present invention adopts following technical scheme: a kind of cable, it comprises at least one conductor, the insulator that is wrapped in successively from inside to outside conductor periphery, overcoat and serving, it is characterized in that: described overcoat comprises that magnetic medium, adhesive and wheat draw layer, described magnetic medium sticks to wheat by adhesive and draws layer surface.

The overcoat of cable of the present invention can improve the EMC performance of cable entirety, make whole piece cable from first to last all there is good EMC performance, the magnetic medium of overcoat sticks to wheat by adhesive and draws layer surface, can avoid magnetic medium to cause EMC performance to weaken because of fracture crisp and that cause in cable processing or use procedure, overcoat handling ease, easy, is conducive to reduce the processing cost of cable.

Brief description of the drawings

Fig. 1 is the generalized section of cable of the present invention.

Fig. 2 is the generalized section of cable protective layer.

Fig. 3 is the generalized section of another execution mode cable of the present invention.

Fig. 4 is the generalized section of another execution mode cable protective layer of the present invention.

Embodiment

Refer to shown in Fig. 1, cable 10 of the present invention is circular, and it comprises that some conductors 11, the insulator 12 that is wrapped in successively from inside to outside conductor 11 peripheries, aluminium foil layer 13, aluminium foil wheat draw layer 14, braid 15, overcoat 16 and serving 17.

Conductor 11 includes power conductor 111 and some to differential signal conductors 112, and each conductor outside 111,112 outer wrap has an insulator 12, and every a pair of differential signal conductors 112 outer wrap have total one deck aluminium foil layer 13.In other embodiments, conductor 11 includes earthing conductor.

Refer to shown in Fig. 2, overcoat 16, between braid 15 and serving 17, is used for improving EMC (Electro Magnetic Compatibility) performance of cable 10 entirety, makes whole piece cable 10 from first to last all have EMC performance.Overcoat 16 is evenly to stick to a wheat by magnetic medium 161 by adhesive 162 to draw layer 163 surface, can avoid magnetic medium 161 cable 10 process or use procedure in because fracture crisp and that cause cause EMC performance to weaken, overcoat 16 handling eases, easy, be conducive to reduce the processing cost of cable 10, wheat draws layer 163 to be positioned at the inner side of overcoat 16, fits with braid 15.

Refer to shown in Fig. 3 to Fig. 4, another execution mode cable 20 of the present invention, it comprises some conductors 21, the insulator 22 that is wrapped in successively from inside to outside conductor 21 peripheries, aluminium foil layer 23, braid 25, overcoat 26 and serving 27.Overcoat 26 is between braid 25 and serving 27, it comprises magnetic medium 261, adhesive 262, wheat and draws layer 263 and aluminium foil layer 264, magnetic medium 261 is evenly to stick to wheat by adhesive 262 to draw layer 263 1 surface, it is also on the bonding aluminium foil layer 264 of adhesive 262 that wheat is drawn layer 263 another surface, aluminium foil layer 264 is positioned at wheat and draws the inner side of layer 263 and fit with braid 25, overcoat 26, owing to having increased aluminium foil layer 261, has been strengthened shield effectiveness.

The overcoat 26 of this cable 20 can improve the EMC performance of cable 10 entirety equally, make whole piece cable 20 from first to last all there is good EMC performance, also can avoid magnetic medium 261 cable 20 process or use procedure in because fracture crisp and that cause cause EMC performance to weaken, overcoat 26 handling eases, easy, are conducive to reduce the processing cost of cable 20.

Although be example object, the preferred embodiment of the present invention is disclosed, but those of ordinary skill in the art will recognize, in the situation that not departing from by the disclosed scope and spirit of the present invention of appending claims, various improvement, increase and replacement are possible.

Claims

1. a cable, it comprises at least one conductor, the insulator that is wrapped in successively from inside to outside conductor periphery, overcoat and serving, it is characterized in that: described overcoat comprises that magnetic medium, adhesive and wheat draw layer, described magnetic medium sticks to wheat by adhesive and draws layer surface.

2. cable according to claim 1, is characterized in that: described cable also comprises aluminium foil wheat and draws layer, and described overcoat draws between layer and serving in aluminium foil wheat.

3. cable according to claim 2, is characterized in that: described cable also comprises and is positioned at aluminium foil wheat and draws the braid in layer outside, and described overcoat is between braid and serving, and described wheat is drawn layer and braid laminating.

4. cable according to claim 1, is characterized in that: described overcoat also comprises aluminium foil layer, and magnetic medium sticks to wheat and draws layer one surface, and aluminium foil layer is to be also bonded in wheat by adhesive to draw another surface of layer.

5. cable according to claim 4, is characterized in that: described cable comprises the braid that is positioned at insulator outside, and described aluminium foil layer is positioned at wheat and draws the inner side of layer and fit with braid.

6. according to the cable described in any one in claim 1-5, it is characterized in that: described conductor includes power conductor and some to differential signal conductors, each conductor external is enclosed with an insulator, and the outer wrap of every a pair of differential signal conductors has total one deck aluminium foil layer.