Axialspaltmotor, Gebläsevorrichtung und Klimaanlage

Details

Veröffentlichungs-Nr.

EP4742508

Anmeldetag

23. Mai 2024

Veröffentlichung

9. Januar 2025

Rechtsraum

EP

IPC

H02K5/24, H02K7/14

Abstract

During driving of an axial gap-type motor, an abnormal noise having a peak of a sound pressure level at a frequency near a natural frequency of an air gap between a rotor and a stator is generated by minute vibration in an axial direction of the rotor. A motor (40) includes a rotor (50, 60) and a stator (70). The rotor (50, 60) has a disk shape. The stator (70) faces the rotor (50, 60) across an air gap (G1, G2) in the axial direction of the rotor (50, 60). The stator (70) includes a plurality of stator cores (71) and a coil (72) wound around each of the stator cores (71). A plurality of the stator cores (71) is annularly arranged when viewed from the axial direction of the rotor (50, 60). The rotor (50, 60) has a plurality of through holes (54, 64) penetrating in the axial direction of the rotor (50, 60). The plurality of through holes (54, 64) is provided on a radially inner side of the rotor (50, 60) with respect to the coils (72) when viewed from the axial direction of the rotor (50, 60).

Anmelder

Firma

Daikin Industries, Ltd.

Land

🇯🇵 Japan

Fachgebiete