Disc type motor rotor

Abstract

The invention relates to the technical field of motors, and particularly relates to a disc type motor rotor which comprises a rotor bracket, multiple pieces of magnetic steel and an annular hoop, wherein the rotor bracket comprises a bracket body, the bracket body is of a circular-plate-shaped structure, a shaft hole is formed in the center of the bracket body, a plurality of sinking grooves are correspondingly formed in the upper end face and the lower end face of the bracket body, the sinking grooves are distributed in the circumferential direction of the bracket body, the sinking groove is formed in the axial direction of the bracket body and extends to the outer edge of the bracket body, an opening is formed in the outer edge of the bracket body, and the sinking groove is a dovetail groove; the multiple pieces of magnetic steel are matched with the sinking grooves in shape, and each piece of magnetic steel is inserted into the corresponding sinking groove from the opening; the annular hoop is fixedly arranged on the outer periphery of the rotor bracket in a sleeving mode, a first extension plate and a second extension plate are arranged around the outer edges of the upper end face and the lower end face of the annular hoop respectively, first fan blades are arranged on the upper end face of the first extension plate, and second fan blades are arranged on the lower end face of the second extension plate. The disc type motor rotor is convenient and fast to install, the magnetic steel is not prone to falling off, and the heat dissipation effect is good.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a rotor of a disc motor. Background technique [0002] 1. Most of the rotors of traditional disc permanent magnet motors use label structure and screw fastening to fix the magnetic steel. The magnetic steel of the former structure is bonded to the forehead of the rotor with special glue, and the accuracy of the layout position is not high. In this state, the temperature of the rotor heating and the high-speed rotation of the rotor may cause the magnet to fall off; the latter requires opening holes in the magnet, which will affect the performance of the magnet, and the magnet is prone to brittle collapse due to its high hardness and burst. [0003] Patent No. CN102624114A is a disk motor rotor, which discloses a disk motor rotor used in a permanent disk motor with axial magnetic flux, including a disk-shaped rotor bracket and a rotor bracket arranged on the rotor A plurality of m...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: the magnetic steel is easy to fall off when the rotor of the sticker type disc motor in the prior art rotates, and the screw-fastened motor rotor fixes the opening of the magnetic steel, which affects the performance of the magnetic steel. And the high-speed rotation of the disc motor rotor in the prior art leads to high temperature affecting its service life, and the technical problems that light and fine objects are easily adsorbed to the magnetic steel during the rotation process, thereby affecting the performance of the magnetic steel

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