Flat type vibration motor and rotor structure
AssigneeLG Innotek Co., Ltd.
InventorJoo Hyoung Kim
Life of this patent
Estimating the term…
Abstract
The present invention relates to a flat type vibration motor and a rotor structure, which can increase a vibration amount of the vibration motor by the rotor structure adapted to increase a volume of a weight formed on a substrate. The weight is formed with the stepped portion formed on the surface thereof, which is contacted with the substrate and the substrate is formed on an inserting hole or an inserting groove corresponding to the stepped portion, so that the stepped portion can be engaged with the inserting hole or the inserting groove. Alternatively, the weight is formed with a mounting groove and the substrate is formed with the inserting hole or the inserting groove and the fixing bar.
Claims30
A flat type vibration motor, comprising:
- a case;
- a magnet provided in the case;
- a shaft supported between top and bottom of the case;
- and
- a rotor coupled to the shaft and including a base, a substrate formed with an inserting hole or an inserting groove, the substrate arranged between the base and the magnet and supporting the base, a coil connected to the substrate, and a weight formed with a stepped portion protruded from a surface thereof, the stepped portion being inserted into the inserting hole or the inserting groove,
- wherein the base includes a hole formed therein and a portion of the weight other than the stepped portion is inserted into the hole of the base.
A flat type vibration motor, comprising:
- a case;
- a magnet provided in the case;
- a shaft supported between top and bottom of the case;
- and
- a rotor coupled to the shaft and including a base, a coil, a weight formed with a mounting groove formed in a surface thereof, and a substrate formed with an inserting hole or an inserting groove in which the weight is inserted and a fixing bar which is engaged with the mounting groove of the weight.
A rotor structure of a vibration motor, comprising:
- a base;
- a substrate formed with an inserting hole or an inserting groove, the substrate supporting the base;
- a coil connected to the substrate;
- and
- a weight formed with a stepped portion protruded from a surface thereof, the stepped portion being inserted into the inserting hole or the inserting groove of the substrate,
- wherein the upper surface and lower surface of the weight are exposed from the base and the substrate, respectively, the base includes a hole formed therein, and a portion of the weight other than the stepped portion is inserted into the hole of the base.
A rotor structure of a vibration motor, comprising:
- a base;
- a weight formed with a mounting groove formed in a surface thereof;
- a substrate formed with an inserting hole or an inserting groove in which the weight is inserted and a fixing bar which is engaged with the mounting groove of the weight;
- and
- a coil connected to the substrate.
Dependencies are inferred from the claim text.