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Cable and manufacturing method thereof

By spraying a magnetic material layer outside the metal shielding layer, the cable design solves the problems of troublesome installation of ferrite cores and poor shielding effect in the existing technology, and achieves a simple structure, low cost and efficient EMI prevention effect.

Inactive Publication Date: 2008-05-07
FOXCONN (KUNSHAN) COMPUTER CONNECTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the metal shielding layer 14 is braided by metal wires, its weaving tightness will be different, so gaps will be generated on the braided layer, and these large and small gaps will reduce the effectiveness of suppressing unnecessary radiation or coupling, thereby Affect the effect of cable anti-EMI

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] see figure 1 The cable 1 of the present invention consists of several conductors 10 from inside to outside, a first insulating layer 20 covering the conductor 10, a metal shielding layer 30 covering the first insulating layer 20, and a metal shielding layer 30 sprayed on the metal shielding layer. 30 outside the magnetic material layer 40 and the second insulating layer 50 wrapped outside the magnetic material layer 40 .

[0013] Several conductors 10 are arranged in a ring inside the cable 1. The conductors 10 can be one of materials such as copper, silver, copper-plated steel and silver-plated steel. These materials have excellent electrical conductivity, high mechanical durability and excellent Excellent corrosion resistance, so it is widely used as an electrical conductor.

[0014] The first insulating layer 20 can be coated on the outside of the conductor 10 by extrusion molding, and the conductor 10 is separated from the metal shielding layer 30. The main purpose...

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PUM

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Abstract

The invention discloses a cable and a manufacturing method thereof. The cable comprises a plurality of conductors, a first insulating layer covering the outer surface of the conductors, a metal shielding layer covering the outer surface of the first insulating layer, and a metal shielding layer formed on the outer surface of the cable. As for the second insulating layer of the outer layer, a magnetic material layer is provided on the outer surface of the metal shielding layer of the cable. The cable manufacturing method includes the following steps: the first step: providing several conductors; the second step: extruding an insulating layer outside the several conductors; the third step: braiding a metal shielding layer outside the insulating layer; The fourth step: spraying the magnetic material on the outside of the metal shielding layer; the fifth step: extruding and forming an insulating layer on the outer surface of the magnetic material layer. The cable manufacturing method may also include the following steps: the first step: providing a plurality of conductors; the second step: forming an insulating layer outside the plurality of conductors; the third step: braiding a metal shielding layer outside the insulating layer; Step 4: Extrude and form an insulating layer containing magnetic material outside the metal shielding layer.

Description

【Technical field】 [0001] The invention relates to an anti-electromagnetic interference (EMI) cable and a manufacturing method thereof, in particular to a cable with a magnetic material layer (Magnetic Material) on the surface of a metal shielding layer and a manufacturing method thereof. 【Background technique】 [0002] The existing anti-electromagnetic interference cable discloses that a ferrite core (FerriteCore) technical solution is arranged on the outer surface of the cable. The ferrite core is arranged near the end of the cable connector to prevent the external electromagnetic field from interfering with the signal of the central conductor. , It can also prevent the center conductor from radiating the electromagnetic field outward. However, it is troublesome to install the ferrite core to the cable, and in some applications it will be limited by space, and at the same time increase the weight and cost of the cable. Since the ferrite core protrudes from the outer surface...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B11/06H01B7/17H01B13/00H01B13/14H01B13/26
CPCB32B15/02B05D1/265H01B11/1083B05D2256/00B05D1/02B05D7/58
Owner FOXCONN (KUNSHAN) COMPUTER CONNECTOR CO LTD