Patent ID: 6969269

Claim:
A battery charger having an AC plug for making connection to an AC power supply and for charging a battery by converting said AC power supply into a DC power supply, said battery charger comprising: a slide shutter configured to slidably cover a charging terminal: a claw configured to lock the battery in place so as to electrically contact said charging terminal; a key-like hold-down member configured to guide the battery when the battery is slid in place; and wherein said AC plug has a first conductive blade, a second conductive blade and a supporting portion for partly supporting said first conductive blade and said second conductive blade, said AC plug is rotatable in a direction perpendicular to plate surfaces of said first conductive blade and said second conductive blade so as to accommodate said AC plug in a case of said battery charger when set in a first position and projecting from said case when set in a second position; said supporting portion comprises an end surface from which a part of said first conductive blade and a part of said second conductive blade project at a substantially right angle, a first surface perpendicular to said end surface and defining a first side surface of said AC plug, a second surface to define a second side surface opposite to said first side surface, a first rotary shaft extending outwardly from said first surface, and a second rotary shaft extending outwardly from said second surface; a first planar contact portion electrically connected to said first conductive blade projects from said first rotary shaft and a second planar contact portion electrically connected to said second conductive blade projects from said second rotary shaft; and a first conductive spring terminal and a second conductive spring terminal respectively having a projecting portion are provided for a circuit board in said case, while said projecting portion of said first conductive spring terminal resiliently contacts with said first planar contact portion and said projecting portion of said second conductive spring terminal resiliently contacts with said second planar contact portion.