Rotorstruktur und Motor

Details

Veröffentlichungs-Nr.

EP4765586

Anmeldetag

29. August 2024

Veröffentlichung

1. Mai 2025

Rechtsraum

EP

Abstract

Provided are a rotor structure and a motor. The rotor structure includes a rotor core (11), first permanent magnets (12) and a second permanent magnet (21), wherein the rotor core (11) is provided with mounting slots, the first permanent magnets (12) are mounted in the mounting slots respectively, and in an axial direction of the rotor core (11), an axial height of each of the first permanent magnets (12) is greater than an axial height of the rotor core (11); grooves (213) are disposed on the second permanent magnet (21), a part of the each of the first permanent magnets (12) protruding from the rotor core (11) in the axial direction is inserted into a corresponding groove of the grooves (213), the first permanent magnets (12) are magnetized in a radial direction and/or a tangential direction of the rotor core (11), and the second permanent magnet (21) is magnetized in the axial direction of the rotor core (11). According to the rotor structure of the present invention, the magnetizing effect of an electric motor is able to be improved, and the magnetic leakage of an axial end portion of a first permanent magnet is reduced; in addition, the number of components is small, the assembling steps are fewer, the assembling is simple, and the production cost is low.

Anmelder

Firmen

Gree Electric Appliances, Inc. of Zhuhai
Zhuhai Kaibang Motor Manufacture Co., Ltd.

Land

🇨🇳 China