Portable terminal accessory module having detachable means

A portable terminal accessory module having a detachable means, which makes it easy to attach or detach various accessory units to or from a rear surface of a portable terminal and stably maintains attachment/detachment coupling forces, the portable terminal accessory module comprising:

• a fixing unit including a fixing plate having a plate shape and one surface coupled to any one of the portable terminal and the accessory unit, a plate-shaped protrusion protruding from an outer circumferential surface of the fixing plate, and an attachment means configured to generate an attachment force of the fixing plate;
• a mounting unit detachably coupled to the fixing plate and including a mounting plate having a plate shape and one surface on which the fixing unit is seated, and a coupling slot protruding from the mounting plate and configured such that the plate-shaped protrusion is detachably fitted with the coupling slot by rotation;
• and
• an accessory unit coupled to the mounting plate,
• wherein the attachment means is an attachment member having one surface and the other surface onto which an adhesive agent is applied, one surface of the attachment member is attached to the fixing plate, and the other surface of the attachment member is attached to the portable terminal,
• wherein a first tapered portion is formed on one side surface of the plate-shaped protrusion that comes into contact with the mounting unit, and a second tapered portion is formed on an inner surface of the mounting unit which faces the first tapered portion such that a press-fitting force is generated when the plate-shaped protrusion is fastened, and
• wherein the plate-shaped protrusion has a catching projection protruding from an end of a side of the mounting unit based on a fastening direction, and when the mounting unit rotates, a lateral surface of the coupling slot is caught by the catching projection, such that the catching projection prevents the mounting plate from excessively rotating or restricts the fastening direction of the mounting unit.