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Printed circuit board

A technology of printed circuit boards and connecting parts, applied in the directions of printed circuits, printed circuits, printed circuit components, etc., can solve problems such as interference

Inactive Publication Date: 2014-10-08
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the influence of electromagnetic radiation generated by high-frequency signals, edge effects will occur on these signal transmission lines, causing interference to other signal transmission lines on the printed circuit board

Method used

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  • Printed circuit board
  • Printed circuit board
  • Printed circuit board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] see figure 1 with figure 2 A preferred embodiment of the printed circuit board 10 of the present invention includes a top surface 11 , a bottom surface 12 , a first side 13 , a second side 14 , a third side 15 , and a fourth side 16 . A signal transmission line 20 is arranged on the printed circuit board 10 close to the third side 15 . Four corners of the printed circuit board 10 respectively define a through hole 17 .

[0014] A metal sheet 30 is disposed on the printed circuit board 10 . The metal sheet 30 includes a first connecting portion 31 , a second connecting portion 32 , a third connecting portion 33 , and a fourth connecting portion 34 connected end to end. The first connecting portion 31, the second connecting portion 32, the third connecting portion 33, and the fourth connecting portion 34 are respectively in close contact with the first side 13, the second side 14, the third side 15, And the fourth side 16. A fixing portion 35 extends from the upper ...

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PUM

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Abstract

The invention provides a printed circuit board which comprises a top face, a bottom face, a first side, a second side, a third side and a fourth side. A signal transmission line is laid on the printed circuit board. A metal sheet is arranged on the printed circuit board. The metal sheet comprises a first connecting part, a second connecting part, a third connecting part and a fourth connecting part, wherein the first connecting part, the second connecting part, the third connecting part and the fourth connecting part are connected head to tail, and are respectively close to the first side, the second side, the third side and the fourth side of the printed circuit board. The first connecting part, the second connecting part, the third connecting part and the fourth connecting part block electromagnetic radiation produced by the signal transmission line, on the printed circuit board, which transmits a high frequency signal.

Description

technical field [0001] The invention relates to a printed circuit board, in particular to a printed circuit board capable of reducing electromagnetic radiation. Background technique [0002] The printed circuit board is usually equipped with signal transmission lines for transmitting high-speed signals. Due to the limitation of the interface position, some signal transmission lines for high-frequency signal transmission on the printed circuit board, such as audio signal transmission lines, are generally arranged near the edge of the printed circuit board. location. Due to the influence of electromagnetic radiation generated by high-frequency signals, edge effects will be generated on these signal transmission lines, resulting in interference to other signal transmission lines on the printed circuit board. Contents of the invention [0003] In view of the above, it is necessary to provide a printed circuit board that can reduce electromagnetic radiation. [0004] A printe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K1/02
CPCH05K1/023H05K2201/10371H05K1/0245H05K2201/10446
Inventor 林有旭欧光峰
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD