| 摘要 |
According to the present invention, a vibration motor comprises: a case which forms a receiving space inside; a mass which is upwardly and downwardly moved inside the case; a magnet unit which is positioned in a center unit of the receiving space, and forms a magnetic field; a coil unit which is connected to the mass, and forms an electric field by supplying current; a damper which is attached to an upper side of the case, and is arranged between the case and the magnet unit; and a spring wherein one end is fixed to the case, and other end elastically supports the mass by being fixed to the mass. The magnet unit comprises: a plurality of magnet members which is arranged by up and down directions to enable same poles to be adjacent to each other; an interconnection member which is arranged between the magnet members, and includes an opening unit which connects a part of upper side and a part of lower side; an upper part bonding unit which bonds the upper side of the interconnection member, and an upper magnet member positioned on an upper side of the interconnection member among the magnet members; a lower part bonding unit which bonds the lower side of the interconnection member, and a lower magnet member positioned on a lower side of the interconnection member among the magnet members; and a connection bonding unit which bonds the upper magnet member and the lower magnet member by using the opening unit. |
