Connection apparatus for electrical connection with a portable device

A connection apparatus for electrical connection with a portable device having a pair of device-side electrodes protruded therefrom, comprising:

• a first electrode having conductivity and magnetic force, the first electrode having a first plane;
• a second electrode having conductivity and magnetic force, the second electrode having a second plane;
• and
• a housing including a fixing member configured to fix the first electrode and the second electrode at an interval corresponding to the pair of device-side electrodes of the portable device, the housing accommodating the first electrode and the second electrode, and the housing including an elongated projecting portion having a planar surface on which a first hole portion and a second hole portion open,
• wherein a first recess of the housing is formed by the first plane of the first electrode and the first hole portion, a second recess of the housing is formed by the second plane of the second electrode and the second hole portion, and the first and second recesses are disposed asymmetrically with respect to a line that passes through a midpoint of a longitudinal direction of the planar surface and extends, within the planar surface, perpendicular to the longitudinal direction,
• wherein the portable device is configured to be positioned with respect to the connection apparatus by inserting one of the device-side electrodes into the first recess, and making surface contact between the one device-side electrode and the first plane of the first electrode, and by inserting the other device-side electrode into the second recess and, making surface contact between the other device-side electrode and the second plane of the second electrode.