Latch mechanism for a battery unit and electronic device having the same

A latch mechanism for locking and releasing a battery unit, comprising:

• a locking mechanism having a main body movably selectable between a locking position and a released position, the locking mechanism having at least one tenon and at least one ramp structure extended from the main body toward substantially the same direction,
• wherein the ramp structure defines an inclined surface slopping downward in the direction from the locking position toward the released position;
• an engaging mechanism, fixedly arranged on the battery unit, having at least one mortise formed toward the locking mechanism for engaging the tenon in the locking position;
• and
• at least one abutting portion fixedly arranged on the battery unit having a contacting surface corresponding to the ramp structure for establishing sliding contact there-with, the contacting surface being substantially parallel to the inclined surface of the ramp structure;
• wherein when the locking mechanism is moved away from the locking position to the released position, the tenon disengages the engaging mechanism and the ramp structure raises the abutting portion in a manner that assists the extraction of the battery unit.