| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 310156090 | Keyed to shaft | 7 |
| 20080284268 | ELECTRIC SUBMERSIBLE PUMPS - A method of pumping wellbore fluid, comprising the steps of: installing an electric submersible pump in a wellbore; and operating the pump at more than 4,500 rpm to pump the wellbore fluid. Pumping in this manner provides a number of advantages in use in that the required high-speed motor and pump is shorter for a given power than existing arrangements, and provides increased reliability due to reduced complexity. A much shorter motor/pump combination also allows such equipment to be used in deviated boreholes with a reduction in damage due to mishandling and bending, as well as facilitating assembly and testing in the manufacturer's plant. | 11-20-2008 |
| 20090015091 | Rotating shaft and motor rotor having the same - A rotating shaft disclosed by the present invention includes a plurality of bumps spacedly formed along an outer circumferential surface thereof. The bumps are each formed with two engagement portions extending outwardly and bilaterally and a deformation space therebetween. The engagement portions undergo resilient deformation toward the deformation space when subjected to a force, thus providing stable engagement with a magnetic body, protecting the magnetic body from cracks and damages during assembling, and enhancing yield. The present invention further discloses a motor rotor having the above-described rotating shaft. | 01-15-2009 |
| 20100066189 | Rotor for Motor - A rotor for a motor includes a shaft having an outer periphery with a positioning portion. The positioning portion has non-circular cross sections perpendicular to a longitudinal axis of the shaft. A plastic magnet is formed on the outer periphery of the shaft by injection molding. The plastic magnet includes an inner periphery engaged with the positioning portion. Thus, the plastic magnet is prevented from disengaging from the shaft and from rotating relative to the shaft. As a result, the rotor has enhanced engaging effect between the shaft and the plastic magnet. Furthermore, the rotor has a simple structure to allow easy assembly. | 03-18-2010 |
| 20100289367 | PERMANENT MAGNET ROTOR - A permanent magnet rotor comprising a shaft, a rotor core fixed to the shaft, a magnet disposed around the core, and a linker fixed relative to the shaft and located at one end of the core; wherein an elastic clamping structure is arranged between the linker and the magnet such that rotational torque of the magnet can be transferred to the shaft via the linker. | 11-18-2010 |
| 20110156520 | HEAT DISSIPATION SYSTEM AND FAN THEREOF - A fan including an impeller structure, a rotor structure and a stator structure is disclosed. The impeller structure includes a hub and a plurality of blades disposed around the outer periphery of the hub. The rotor structure includes a shaft and a magnetic element. The shaft is disposed through the magnetic element and connected to the hub. The magnetic element includes at least one terminal surface in the axial direction, and at least one receptacle is formed on the terminal surface. The stator structure is disposed around the outer periphery of the magnetic element. The heat dissipation system and the fan thereof can improve the reliability of the motor at high rotating speed effectively and prolong the lifetime of the shaft. | 06-30-2011 |
| 20130334922 | MOTOR - Disclosed is a motor, the motor according to exemplary embodiments of the present disclosure including an insulator body coupled to a stator core wound with a plurality of coils applied with powers of mutually different polarities to prevent the coil and the stator coil from being short-circuited, a terminal housing coupling unit integrally formed with the insulator body to be coupled to a terminal housing supplying an outside power by being circumferentially protruded, and a coil guide unit formed at the terminal housing coupling unit to prevent coils connected to a terminal of each polarity installed at the terminal housing from being short-circuited. | 12-19-2013 |
| 20150137646 | ROTOR AND PERMANENT-MAGNET EMBEDDED TYPE MOTOR - A rotor includes a plurality of magnets, and an annular rotor core having a plurality of magnet insertion holes formed in a circumferential direction, into which the magnets are respectively inserted, in which each of the magnet insertion holes is formed with a protruding portion A on an inner wall surface on an inner diameter side in a radial direction of the rotor, and each of the magnets is formed with a recessed portion that is fitted to the protruding portion A when the magnet is inserted into the magnet insertion holes. With this configuration, fixation of the magnets is facilitated, and generation of chipping and vibration noise due to a movement of the magnets at the time of activation or rotation can be suppressed, thereby enabling to provide the rotor having high quality and high reliability. | 05-21-2015 |
