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Electromagnetic interference shielding structure and method

A shielding structure and electromagnetic technology, applied in the direction of magnetic field/electric field shielding, shielding, electrical equipment construction parts, etc., can solve the problems of hard fixing of magnetic core, increase of product weight, occupying wiring space, etc.

Inactive Publication Date: 2010-04-21
QUANTA COMPUTER INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the use of magnetic cores in electronic information products not only increases product weight and occupies wiring space, but also increases manufacturing costs. In addition, the magnetic core is not easy to fix, and it is easy to collide with other components when handling or carrying.
The use of shielded conductive cloth and pigtail grounding can only suppress the electromagnetic radiation interference caused by the signal transmission line itself, and cannot simultaneously solve the electromagnetic interference caused by the broadband noise of the power supply

Method used

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  • Electromagnetic interference shielding structure and method
  • Electromagnetic interference shielding structure and method
  • Electromagnetic interference shielding structure and method

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Embodiment Construction

[0023] The purpose of the present invention is to provide a shielding structure and method for suppressing electromagnetic interference, which can shield and block an electromagnetic emission source inside electronic information products, and at the same time suppress the interference of other electromagnetic noises .

[0024] In order to make the above and other purposes, features, and advantages of the present invention more comprehensible, a preferred embodiment is specifically cited below, together with the accompanying drawings, as follows:

[0025] In a preferred embodiment of the present invention, a notebook computer is used to illustrate the shielding structure for suppressing electromagnetic interference inside the electronic information product of the present invention.

[0026] Please refer to figure 1 , figure 1 is a partially disassembled schematic diagram of a notebook computer according to a preferred embodiment of the present invention. In this embodiment, ...

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Abstract

A shielding structure of electromagnetic interference is prepared as electric-connecting frame to earthing loop of electronic information product, wrapping conductive cloth on each transmission conductive wire, electric-connecting shell to frame and setting shell between emission source of electromagnetic interference and those transmission conductive wires as shell being electric-connected with said conductive cloth wrapped on those transmission conductive wires.

Description

technical field [0001] The invention relates to a shielding structure for suppressing electromagnetic interference (EMI) noise, and in particular to a shielding structure used in portable electronic information products for suppressing electromagnetic interference noise. Background technique [0002] When a motor or an electronic device is in operation, it often emits electromagnetic waves through several parts (such as power supply, transmission wires, and electronic components, etc.). When more than one component or device emits electromagnetic waves at the same time, it often causes individual devices during operation The condition of generating noise (Noise) interference, this phenomenon is generally called electromagnetic interference. [0003] With the ever-changing performance of electronic information products (such as notebook computers, mobile phones, Personal Digital Assistants, PDAs, etc.), the speed and frequency of data transmission continue to increase. For ex...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K9/00H05K7/00G12B17/02
Inventor 谢昌正吴康
Owner QUANTA COMPUTER INC