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Printed circuit board securing structure and tuner unit

A printing substrate and structure technology, applied in the field of tuning units, can solve problems such as waste, and achieve the effect of improving production efficiency and responding flexibly

Inactive Publication Date: 2009-04-01
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, even when the circuit is changed slightly, the entire printed circuit board 101 before the circuit change is sometimes replaced, which wastes a lot of time.

Method used

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  • Printed circuit board securing structure and tuner unit
  • Printed circuit board securing structure and tuner unit
  • Printed circuit board securing structure and tuner unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] figure 1 It is a perspective view showing a schematic configuration of a tuning unit 1 having a printed circuit board fixing structure 10A according to Embodiment 1 of the present invention. This printed circuit board fixing structure 10A has a base 12 on which a printed circuit board 11 is fixed.

[0039] The illustrated printed circuit board 11 is, for example, a printed circuit board having a high-frequency circuit such as a printed circuit board for receiving television. The printed circuit board 11 has a rectangular shape, and components such as resistors and capacitors not shown, air-core coils and surface acoustic wave filters not shown, for example, are mounted on the circuit board 11 .

[0040] The base 12 has a base frame 13 and a shield plate 14 . The base frame 13 is a metal frame surrounding the outer surface 111 of the printed circuit board 11 . The illustrated base frame 13 is formed to cover the outer surface 111 of the printed circuit board 11 from ...

Embodiment 2

[0064] Image 6 It is a perspective view showing a schematic structure of a printed circuit board fixing structure 10B according to Embodiment 2 of the present invention.

[0065] exist Image 6 In the printed circuit board fixing structure 10B shown, the components substantially the same as those in the printed circuit board fixing structure 10A of the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

[0066] The printed circuit board 11 is divided into a size slightly smaller than the compartments partitioned by the shield plates 14 . In the illustrated embodiment, the printed circuit board 11 is divided into four divided substrates 11a to 11d. Each divided substrate 11 a to 11 d is arranged in a compartment partitioned by a shield plate 14 .

[0067] On the inner wall surface 131 of the base frame 13 and the wall surface 141 of the shield plate 14, a substrate fixing portion capable of fixing the divided substrates 11a t...

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PUM

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Abstract

In one embodiment of a printed circuit board securing structure and a tuner unit according to the present invention, a chassis comprises a chassis frame that surrounds the lateral faces of a printed circuit board and a shield plate that partitions the space within the chassis frame, and circuit board holding parts for holding the printed circuit board between the circuit board holding parts and the shield plate are disposed on inner wall faces of the chassis frame. The circuit board holding parts are configured to be able to secure the printed circuit board from both faces.

Description

[0001] This application claims the priority of Japanese Patent Application No. 2007-249550 filed in Japan on September 26, 2007. It is mentioned here that it is included in this application in its entirety. technical field [0002] The present invention relates to a printed board fixing structure for fixing a printed board such as a tuner board for receiving high frequency to a chassis, and a tuner unit having the structure. Background technique [0003] A printed circuit board installed in an electric device is usually held in a housing of the electric device in a state of being fixedly arranged on a frame or the like. When the printed board has a high-frequency circuit and is fixed like a printed board installed in a tuner for high-frequency reception such as a TV tuner, the printed board is fixed and held on a base frame having an outer surface surrounding the printed board. physically. [0004] For example, in Japanese Patent Publication No. 3-48284, Japanese Patent Pu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K7/14H05K9/00
CPCH05K9/006H05K9/002
Inventor 岸田朋杖板屋刚
Owner SHARP KK