Power supplying apparatus

A power supplying apparatus comprising:

• a power supply section including
• a first power supply circuit, accommodated in a first cabinet with a box shape, for converting an alternative-current input into a direct-current output;
• an alternative-current power input section provided on said first cabinet;
• and
• a first connection section provided on said first cabinet;
• and
• an output section including
• a second power supply circuit accommodated in a second cabinet with a box shape, for converting the direct-current output into another direct-current output;
• a secondary battery accommodated in said second cabinet;
• a control section accommodated in said second cabinet;
• a direct-current power output section provided on said second cabinet;
• and
• a second connection section provided on said second cabinet to be joined to said first connection section, wherein
• each of said cabinets of said power supply section and said output section can be mounted and dismounted with a high degree of freedom;
• said first connection section is a protrusion protruding out off the front surface of a specific one of said first and second cabinets;
• said second connection section is a hollow created on the front surface of the other one of said first and second cabinets to serve as a hollow to be engaged with said protrusion;
• said protrusion is an approximately oblong-shaped pole having a plurality of contact points;
• said hollow is extended from an opening provided on said front surface of said other one of said first and second cabinets in the inward direction and has a plurality of contact terminals each provided at a location in close proximity to said opening;
• a lock pin is provided at each of four locations in close proximity to edge corners on each of the ceiling and bottom surfaces of said protrusion;
• each of said lock pins is biased by a spring so that each of said lock pins can each appear and sink with a high degree of freedom;
• each of lock projections is provided on the reverse side of said opening of said hollow at a location with which one of said lock pins is brought into contact;
• when said protrusion is inserted into said hollow in an insertion direction, each of said lock pins is engaged with one of said lock projections, inhibiting said protrusion from being pulled from said hollow in a direction opposite to said insertion direction;
• and
• when said protrusion is inclined with respect to the longitudinal direction of said protrusion and said two specific lock pins are unlocked from said two lock projections so that said state of locking is ended.