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Shielding device of portable DVD player and complete machine having the same

A shielding device and portable technology, applied in the fields of magnetic/electric field shielding, reducing the physical parameters of the carrier, instruments, etc., can solve the problems of increasing production costs, endangering the health of operators, rework, etc., achieving convenient replacement and easy product quality. Guaranteed effect

Inactive Publication Date: 2009-08-12
江苏常州武新产业投资有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantages of this solution are: First, in order to achieve the effect of complete shielding, the electroplating process requires high requirements, and the metal paint on the electroplating must be very uniform. In actual operation, rework is often easy to occur, which affects work efficiency. , Increased production costs; Secondly, in the process of electroplating operations, the damage to the environment is obvious, and it seriously endangers the health of operators

Method used

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  • Shielding device of portable DVD player and complete machine having the same
  • Shielding device of portable DVD player and complete machine having the same
  • Shielding device of portable DVD player and complete machine having the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (the circuit board shielding device of embodiment 1 portable DVD video disk player)

[0023] See figure 1 , the circuit board shielding device 3 comprises a circuit board 32, an upper cover 31, a base 33, a polycarbonate sheet 34 and screws 35; the circuit board 32 is located between the upper cover 31 and the base 33; the polycarbonate sheet 34 is lined on the upper cover 31 and screws 35; the circuit board 32 is located between the loam cake 31 and the base 33; the polycarbonate sheet 34 liner is between the loam cake 31 and the circuit board 32, in order to prevent the conductive elements on the loam cake 31 and the circuit board 32 from contacting , based on the same reason polycarbonate sheet 34 can also be used between the circuit board 32 and the base 33; See figure 2 , the upper cover 31 of the circuit board shielding device 3 is a stamped steel part, has a plane and a vertical side extending downward from the edge of the plane, and the lower edge of the side...

Embodiment 2

[0026] (Embodiment 2 has the portable DVD player of above-mentioned circuit board shielding device)

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Abstract

The present invention relates to a shielding device for a portable DVD video disc player. Its purpose is to provide a circuit board shielding device with reliable performance, which makes its process convenient, high in production efficiency and conducive to environmental protection requirements. The above-mentioned circuit board shielding device has a circuit board. A conductive upper cover and a base are respectively provided above and below, and the upper cover and the base are tightly fastened together so that the circuit board is located between the upper cover and the base; the upper cover or the base is grounded.

Description

technical field [0001] The invention relates to a shielding device for a portable DVD player. Background technique [0002] Most of the casings of portable DVD players on the market are made of plastic, which makes the whole machine lighter and lighter, but it also brings about a problem of electromagnetic shielding. Because the video disk player with a metal casing originally had a shielding function; now that the casing is made of plastic, it is necessary to solve the problem of circuit shielding caused by it. [0003] The current popular method is to electroplate a layer of metal paint on the inside of the casing of the portable DVD player to make it have a shielding function. However, the disadvantages of this solution are: First, in order to achieve the effect of complete shielding, the electroplating process requires high requirements, and the metal paint on the electroplating must be very uniform. In actual operation, rework is often easy to occur, which affects work...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B33/00G11B33/14H05K9/00
Inventor 秦志尚虞立新
Owner 江苏常州武新产业投资有限公司
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