Abstract: The invention provides a resin component used within a memory disk drive device and a highly reliable memory disk drive device using the resin component, the resin component having excellent flame resistance and minimal outgas. A resin component used inside a memory disk drive device (1), the resin component being an insulating bushing for protecting a lead of a motor (2) when the lead is connected to a circuit board; a carriage (4) being molded integrally with a coil for driving a swing arm (3) provided with a pickup head (3a) for reading or writing information on a memory disk on a distal end thereof, and the carriage adapted for balancing the weight of the swing arm (3); or a ramp (5) for retracting the pickup head (3a) when the memory disk stops.

Abstract: An electric motor apparatus comprising: a stator component and a rotor component rotationally mounted coaxially with and within the stator component. The stator component and the rotor component each comprise windings configured to generate an electromagnetic field from an electric current. The electric motor further comprises an intermediate screening component rotationally mounted between the stator component and the rotor component and configured to provide at least some magnetic screening between the rotor component and the stator component.

Abstract: An electric motor includes: a stator; a shaft; a rotor mounted on the shaft, the rotor having an end ring that is concentric with the shaft; and a flux shield around the shaft inside the end ring.

Abstract: Provided is a stator core for a motor capable of facilitating an assembly work and parts management without increasing the number of components while suppressing leakage of magnetic flux passing through a flange to a coil. A stator core has an annular yoke portion and tooth portions inwardly protruding from an inner periphery of the yoke portion in a radial direction, wherein at a front end of the tooth portion inwardly protruding in the radial direction, a flange portion is provided so as to face a coil wound around the tooth portion and wherein to the flange portion, a compressive residual stress portion M is provided.

Abstract: The present invention relates to an electric commutator motor (1) that comprises a stator (2) and a rotor core (3), wherein the magnetic flux transmittance between the rotor (3)-stator (2) is improved and the noise level is reduced by securing a ferromagnetic rotor sleeve (5) on the outer circumference press-fittingly. The sleeve is made of a ring shaped ferromagnetic laminations.

Abstract: An integrated stator flange assembly is disclosed. In one embodiment, the integrated stator flange assembly may have an outer surface and include: a stator flange; and a flux shield bonded directly to the stator flange, the flux shield forming a portion of the outer surface of the integrated stator flange assembly.

Abstract: The stator of an electric motor includes a stator lamination bundle which is provided with windings which pass through this and which in the regions projecting beyond the stator lamination bundle form end-windings. An end-winding shielding which is electrically conductively connected to the stator lamination bundle is provided. This shielding is formed by segmented and distanced shielding sections which in each case shield at least one end-winding completely or partly.

Abstract: An integrated stator flange assembly is disclosed. In one embodiment, the integrated stator flange assembly may have an outer surface and include: a stator flange; and a flux shield bonded directly to the stator flange, the flux shield forming a portion of the outer surface of the integrated stator flange assembly.

Abstract: A synchronous reluctance motor comprises a stator and a rotor, the rotor comprising: a rotation shaft; a first core having a shaft hole for inserting the rotation shaft at a center thereof, and having a plurality of first flux barrier groups arranged along a circumferential direction of the shaft hole and spacing from each other; and a second core having a receiving hole larger than the shaft hole at a center thereof, and stacked at one side of the first core in an axial line direction. A length of the rotor protruding from a supporting portion can be decreased without reducing a stacked thickness thereof, and a vibration occurrence in a horizontal direction with respect to the rotation shaft can be reduced, thereby enhancing a reliability of the synchronous reluctance motor.

Abstract: A generator rotor core (54) carrying superconducting windings (60) and having a shield (426) over the superconducting windings (60) to prevent external magnetic fields from impinging the windings. Axial shield edges (430/434) mate with corresponding features of the rotor core (54) or with structures affixed to or supported by the core (54) to support the shield (426).