DC adaptor and electronic apparatus using the same

A technology for electronic equipment and adapters, applied in the direction of converting DC power input to DC power output, instruments, circuits, etc., can solve problems such as inability to accommodate, electronic equipment not working, and inability to ensure the safety of electronic equipment
CN1806378AInactive Publication Date: 2006-07-19SONY CORP
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SONY CORP
Publication Date
2006-07-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

A DC adaptor which can be installed, alternatively to a primary battery or a secondary battery, on a battery receiving section provided in an electronic apparatus. A DC adaptor (3) is connected to an AC / DC converter (35), installed on a battery receiving section (20) of an electric apparatus (1), and supplies DC power to the electric apparatus. In the DC adaptor, an insertion restriction section (41) is formed on an adaptor body (31) with a substantially circular tube shape. When inserted with correct polarities, the insertion restriction section (41) is guided by an insertion guide section (57) in the battery receiving section, and, when inserted with reversed polarities, the insertion restriction section (41) is restricted, by a side wall (58) on the insertion end side of the battery receiving section, from being inserted into the battery receiving section. The insertion restriction section is projected and formed in a rectangular shape on a part of the outer periphery of the adaptor body, the rectangular shape being in the longitudinal direction of the adaptor body. Two sides (41a, 41b) extended from a part of the outer periphery of the DC adaptor and forming the insertion restriction section are formed such that the center angle of a circular arc connecting their base end sections on the adaptor body is less than 90 DEG .
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Description

technical field

[0001] The invention relates to a direct current adapter and electronic equipment using the direct current adapter. The direct current adapter is used for externally supplying direct current power to electronic equipment using dry batteries as the power supply.

[0002] This application claims priority based on Japanese Patent Application No. 2004-148501 filed on May 19, 2004 and Japanese Patent Application No. 2004-378329 filed on December 27, 2004 in Japan, and these applications are hereby incorporated by reference Apply for citations. Background technique

[0003] In the past, electronic devices powered by primary batteries or secondary batteries have been widely used. This type of electronic equipment is provided with a battery housing portion for storing a primary battery or a secondary battery, and is driven by receiving power supply from the battery housed in the battery housing portion. The secondary battery used for this electronic device can be r...

Claims

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