Disc type motor rotor structure and disc type motor

Abstract

The invention discloses a disc type motor rotor structure and a disc type motor. The disc type motor rotor structure comprises a hub support, an annular clamp and a plurality of permanent magnets, wherein the hub support is in a disc shape, an axle hole is formed in the center of the hub support, an inner limiting ring is installed on the installation face of the hub support and located on the periphery of the axle hole in a protruding mode, the annular clamp is arranged on the periphery of the hub support, a plurality of clamping grooves distributed in the peripheral direction of the annular clamp are formed in the inner side face of the annular clamp, the outer ends of the permanent magnets are correspondingly clamped and limited to the multiple clamping grooves, and the inner ends of the permanent magnets are limited by the inner limiting ring. Due to the fixing structure, the magnetic faces of the permanent magnets are not damaged, the magnetism of the whole magnet is not affected, the structure is simple and convenient to install, the permanent magnets adopt the boltless fixing structure, and the disc type motor rotor structure is suitable for batched production.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a disc motor rotor structure and the disc motor. Background technique [0002] The disc motor has a high torque density and has broad application prospects. The rotor structure of the disc motor can be divided into a support disc and a permanent magnet steel. The rotor support disc is used as the installation support of the permanent magnet. In the prior art, the permanent magnet The steel is fixed on the rotor disk by bonding or screw fastening. When the motor works for a long time, the rotor will generate magnetic loss and generate heat. If the bonding method is adopted, the bonding may fail and the rotor will fall off; if the direct fixing method is used, it will cause Destroying the structure of the magnet causes damage and affects the magnetic circuit. [0003] The existing technical document "Disc Motor Rotor" (Patent No.: 201210049459.1) discloses an installation method in...

AI Technical Summary

Problems solved by technology

[0002] The disc motor has a high torque density and has broad application prospects. The rotor structure of the disc motor can be divided into a support disc and a permanent magnet steel. The rotor support disc is used as the installation support of the permanent magnet. In the prior art, the permanent magnet The steel is fixed on the rotor disk by bonding or screw fastening. When the motor works for a long time, the rotor will generate magnetic loss and generate heat. If the bonding method is adopted, the bonding may fail and the rotor will fall off; if the direct fixing method is used, it will cause Destroy the structure of the magnet to form damage and affect the magnetic circuit

[0003] The existing technical document "Disc Motor Rotor" (Patent No.: 201210049459.1) discloses an installation method in which permanent magnet steel is fixed in the dovetail groove by pressing blocks after processing the dovetail groove on the rotor disk, which can solve the problem of The lack of traditional magnetic steel fixing, but this installation method needs to use a large number of screws to fix the pressing block, the process is complicated, the processing volume is large, and the cost is high, which cannot meet the needs of mass production

Images