公开(公告)号：US5138207A

公开(公告)日：1992-08-11

申请号：US680533

申请日：1991-04-04

Applicant: Mohamed A. Hilal ,  Jerry D. Lloyd ,  Alan D. Crapo

Inventor： Mohamed A. Hilal ,  Jerry D. Lloyd ,  Alan D. Crapo

IPC: H02K55/04

CPC classification number: H02K55/04

Abstract: A superconductor motor (10) comprises a stator assembly (14) which includes a plurality of solenoids (40-44). A rotor assembly (12) includes a disk (20) of superconductive material in which are entrapped magnetic lines of flux which cause the rotor to function as a magnet. The lines of flux tend to creep throughout the disk over time thereby reducing the magnetic properties of the rotor assembly and decreasing motor performance. A plurality of coils (48a-48l) are carried by the disk. The stator solenoids are energized to produce rotation of the rotor, and the coils are energized in a predetermined manner to compensate for the flux creep in the disk and to restore the rotor assembly's magnetic properties thus to prevent deterioration in motor performance.

Abstract translation: 超导体电动机（10）包括定子组件（14），其包括多个螺线管（40-44）。 转子组件（12）包括超导材料盘（20），其中夹带磁通线，使转子起磁体的作用。 磁通线会随着时间的推移在整个磁盘中蠕变，从而降低转子组件的磁性能并降低电机性能。 多个线圈（48a-481）由盘承载。 定子螺线管被通电以产生转子的旋转，并且线圈以预定的方式被激励以补偿盘中的磁通蠕变并且恢复转子组件的磁性，从而防止电动机性能的劣化。

公开(公告)号：US4845837A

公开(公告)日：1989-07-11

申请号：US916005

申请日：1986-10-06

Applicant: Jerry D. Lloyd

Inventor： Jerry D. Lloyd

IPC: H01F7/02 ,  H01F41/02 ,  H02K1/17 ,  H02K1/27 ,  H02K15/03 ,  H02K21/10 ,  H02K21/46 ,  H02K23/04

CPC classification number: H02K1/276 ,  H02K1/17 ,  H02K1/2766 ,  H02K15/03 ,  H02K21/46 ,  H02K23/04 ,  H02K2201/06 ,  Y10T29/49012 ,  Y10T29/49076

Abstract: A rotor assembly for a permanent magnet motor includes a set of laminatings forming a rotor body, each lamination having a first magnet slot therein. A generally rectangular permanent magnet is disposed in the magnet slot, the magnet slot of each lamination being shaped so as to receive the rectangular permanent magnet through all the skewed laminations with a minimum air gap. A method of making an assembly such as a rotor includes the steps of providing an assembly body made of ferromagnetic material defining at least one magnet slot therein. The slot is at least partially filled with a mixture of magnetizable particles in a binder. The mixture is compressed and then cured to bond the magnetizable particles together in the slot and the bonded particles are then magnetized in the slot to form a magnet in situ in the slot without an air gap.