Abstract: Disclosed is a sensing magnet apparatus for an motor, the apparatus including a disk-shaped plate centrally inserted by a rotation shaft, a ring-shaped sensing magnet so installed as to surface-contact an upper surface of the plate, formed at a position near to a periphery with a main magnet, and formed at a position near to a through hole with a sub magnet, and a separation inhibition unit physically coupling the plate and the sensing magnet to maintain the coupled state between the plate and the sensing magnet.

Abstract: A motor is provided, the motor including a housing, a stator mounted inside the housing, a rotor rotatably installed at a center of the stator by a rotation shaft, and a pulley rotating in association with the rotation shaft, wherein the pulley includes a belt gear coupled by a belt at a periphery, a flange formed at one side of the belt gear to have a diameter greater than that of the belt gear, and a relief groove formed between the belt gear and the flange to distance the belt gear from the flange.

Abstract: A vibration motor includes: a rotor having an eccentric gravity center; a shaft inserted through a bearing of the rotor; a magnet provided at a position facing the rotor, at least one commutator circumferentially formed on a lower surface of the rotor; at least one pair of brushes being in contact with the commutator; a first terminal and a second terminal connected with the one pair of brushes and exposed to the external at their lower sides so as to be in contact with an electric line; and a base as a mold for fixing the first terminal and/or the second terminal thereto.

Abstract: A vibration motor includes: a rotor having an eccentric gravity center; a shaft inserted through a bearing of the rotor; a magnet provided at a position facing the rotor, at least one commutator circumferentially formed on a lower surface of the rotor; at least one pair of brushes being in contact with the commutator; a first terminal and a second terminal connected with the one pair of brushes and exposed to the external at their lower sides so as to be in contact with an electric line; and a base as a mold for fixing the first terminal and/or the second terminal thereto.