VIBRATIONS-GLEICHSTROMMOTOR UND ANKERSTRUKTUR

The direct current vibration motor comprises a stator (1), a rotor (2) rotatably attached on this stator (1), and a cylindrical cover (3) for sealing the rotor (2). The stator (1) has four permanent magnets (12) arranged in a ring-like configuration and magnetized in an axial direction. The rotor (2) is provided with an armature (22) eccentrically fixed to a portion in the circumferential direction of the rotation shaft. The armature (22) comprises a first coil (24) and a second coil (25). Furthermore, the armature (22) is provided with a pin (28) formed of a magnetic body for regulating the static position so that the first coil and the second coil are fixed at a position where the first coil and the second coil (24 and 25) are deviated from the central position of the magnetic pole of the stator (1). Current is supplied to the coils (24 and 25) with the commutator (23) and the brushes (14) and (15) arranged with the spatial phase angle of 90 DEG .