Portable apparatus

Abstract

The invention provides a portable apparatus in the following structure, inhibiting electromagnetic radiation from the inside of the apparatus, and inhibiting galvanic action generated between different kinds of metals. The portable apparatus (1) has: a first component (7) which is a component as the external component of the portable apparatus and is made of a first metal; a second component (3) which is a component as the external component of the portal apparatus, is electrically connected with the first component, and is made of a second metal different from the first metal; a third component (11) which is a component as the external component of the portable apparatus, is made of a material that is a third metal the same as or different from the second metal, the external surface being applied by finishing and is electrically insulated with the first component and the second component; and a fourth component (13) which is configured between the second component and the third component, electrically connected with the second component, and electrically insulated with the third component.

Description

technical field [0001] The present invention relates to a portable device, and more particularly, to a structure for suppressing electromagnetic radiation and galvanic corrosion in a portable device that uses a plurality of metal parts to form exterior parts. Background technique [0002] Conventionally, in portable devices such as digital cameras, as a measure for suppressing electromagnetic radiation generated by electronic control circuits and the like provided therein, for example, metal components are used as exterior components, and this structure has been widely used. [0003] In this case, various metals can be used for the metal used in the equipment depending on the site used and the application. Therefore, different types of metals may be mixed in the exterior parts of one device, and the parts may be arranged close to each other. [0004] On the other hand, in portable devices such as digital cameras in recent years, for example, a structure having a waterproof ...

AI Technical Summary

Problems solved by technology

[0010] However, when adopting the solutions disclosed in the above-mentioned Japanese Patent Laid-Open No. 2005-350733, for example, there is a problem that unnecessary electromagnetic radiation may be generated from the position where the insulating member is provided.

[0011] On the other hand, in equipment whose exterior parts are made of different types of metals, if galvanic corrosion occurs between the different types of metals, rust may occur, and as a result, the parts used on the outermost side of the exterior parts may be damaged. The appearance treatment such as surface coating and printing peels off, or the appearance treatment of the non-rust parts peels off by itself, which will damage the appearance of the equipment.

Therefore, if components are selected in consideration of suppression of galvanic corrosion, there is a problem that the types of metals that can be used as exterior components are limited.

This will speed up the degradation of the device, limit the expansion of the types of cosmetic decoration that can be achieved with the device's cosmetic treatment, and become a disadvantage especially in portable devices for ordinary consumers

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