Mobile terminal

A mobile terminal comprising

• a front case comprising a keypad-accommodating portion;
• a rear case detachably coupled to the front case at a rear surface of the front case with a component accommodating space, in which a main printed circuit board (PCB) is arranged, therebetween;
• a keypad of a flexible material accommodated in the keypad-accommodating portion of the front case and provided with a plurality of key buttons;
• and
• a power key unit coupled to one side of the main PCB and turning on/off operation of the main PCB,
• the keypad comprising a water-resistant blade placed at an edge thereof and extending toward the keypad-accommodating portion, and the keypad-accommodating portion comprising a blade-insertion rail placed on a bottom thereof and partially inserting the water-resistant blade therein,
• wherein the power key unit comprises
• a power-key tact switch provided at one side of the main PCB;
• a first switch shield passing the power-key tact switch therethrough while supporting and surrounding the power-key tact switch;
• a power-key water-resistant cap of a flexible material inserted in the first switch shield, airtightly sealing the first switch shield, and having a first protrusion shielding end portion adjacent to the power-key tact switch;
• and
• a power key inserted in and coupled to the power-key water-resistant cap and substantially pressing the power-key tact switch.