3results about How to "Increase flux" patented technology

This disclosure relates to a rotor, an electric motor, and a compressor. The rotor includes a rotor core, a plurality of rare-earth permanent magnets, and a plurality of ferrite permanent magnets. The rotor core includes a plurality of core units arranged sequentially along the circumference of the rotor core. Each core unit has two first mounting slots and one second mounting slot arranged circumferentially at intervals. The first mounting slots have openings located on the outer circumferential surface of the core unit. The second mounting slots are located between the two first mounting slots and opposite to the side of the first mounting slots away from the opening. The plurality of rare-earth permanent magnets are fixed one-to-one in all the first mounting slots; the plurality of ferrite permanent magnets are fixed one-to-one in all the second mounting slots. This disclosure can improve motor performance by increasing the amount of inexpensive ferrite permanent magnets while reducing the amount of rare-earth materials used, thereby balancing motor performance and cost.

The utility model discloses a rotor assembly, a motor and a household electrical appliance, and relates to the technical field of motors. The rotor assembly comprises the rotor core and the permanent magnet, and the permanent magnet is integrally injection-molded on the rotor core, so that the assembly of the rotor assembly can be simplified, and the production efficiency is improved. The inner side wall of the rotor core is provided with a plurality of grooves which are arranged around the axis of the rotating shaft of the rotor assembly, the outer side wall of the first magnetic part is provided with convex parts which are the same as the grooves in number, and the convex parts are correspondingly arranged in the grooves. Under the condition that the external dimension of the motor is not changed basically, the size of the permanent magnet can be effectively increased, and then the magnetic flux generated by the permanent magnet is increased. And meanwhile, the outer side wall of the first magnetic part is provided with the convex part, so that the area of the outer side wall of the first magnetic part can be effectively increased, the area of magnetic flux emitted by the rotor assembly is larger than the area of one side close to the air gap, a magnetism gathering effect can be formed, the air gap flux density is improved, the torque density is improved, and the performance of the motor is improved.

A neutron capture therapy system is provided, which can prevent the material of a beam shaping assembly from deformation and damaged, and improve the flux and quality of neutron sources. A boron neutron capture therapy system (100) includes a neutron generating device (10) and a beam shaping assembly (20). The neutron generating device (10) includes an accelerator (11) and a target (T). A charged particle beam (P) generated by the acceleration by the accelerator (11) interacts with the target (T) to generate neutrons. The neutrons form a neutron beam (N). The neutron beam (N) defines a main axis (X). The beam shaping assembly (20) includes a support part (21) and a main part (23) filled within the support part (21).