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Electronic device

A technology for electronic equipment and circuit boards, which is applied to structural components of electrical equipment, electrical components, magnetic field/electric field shielding, etc., can solve the problem of a large number of components, and achieve the effect of reducing the number of components and reducing material costs

Inactive Publication Date: 2011-08-24
MITSUMI ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the number of parts to be processed is large

Method used

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Embodiment Construction

[0047] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, the scope of the present invention is not limited to the illustrated examples.

[0048] First, refer to Figure 7 ~ Figure 9 , the device configuration of the shield box 2 used in the electronic equipment of this embodiment will be described. Figure 7 It shows the three-dimensional structure of the shielding box 2. Figure 8 The planar structure of the frame 40 is shown. Figure 9 A planar structure of the circuit board 70 is shown.

[0049]The electronic device of this embodiment has a shield case 2 and a circuit board 70 . The shield case 2 accommodates the circuit board 70 . The circuit board 70 is a circuit board on which a tuner of an in-vehicle satellite broadcasting receiver is mounted. The shielding box 2 protects the circuit board 70 from external electric fields and external magnetic fields. However, the present invention is not limite...

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Abstract

Provided is an electronic device that can reduce a material cost and the number of members to eliminate complex processing. The electronic device has a circuit board on which circuit elements are provided, and a shield case that accommodates the circuit board. The shield case has a frame. The frame has a side plate part having side plates for holding and covering the outer periphery of the circuit board, coupling parts extending parallel to a plane of the circuit board and connecting with at least two of the side plates, and contact parts connected to the coupling parts and directly contacting the circuit elements. The shield case releases the heat produced from the circuit elements via the contact parts and the coupling parts.

Description

technical field [0001] The present invention relates to an electronic device having a shield case for protecting an electronic circuit board. Background technique [0002] Conventionally, electronic circuit boards of electronic devices such as satellite broadcast tuners are housed in shielding boxes that protect them from external electric fields and external magnetic fields. The shield case is mainly composed of a container-type case that holds and covers the side surfaces of the electronic circuit board, and a cover portion for covering the opening of the electronic circuit board mounted in the container-type case. [0003] Here, refer to Figure 1 to Figure 6 , and the structure of a shield box used in a conventional electronic device will be described. figure 1 The three-dimensional structure of the conventional container-type case 10 is shown. figure 2 The planar structure of the conventional container-type case 10 is shown. image 3 The planar structure of the con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K5/04H05K7/20H05K9/00
CPCH05K9/006H05K7/20436
Inventor 近藤直人佐藤敏
Owner MITSUMI ELECTRIC CO LTD