Elektromotor mit Polverlängerungen

Details

Veröffentlichungs-Nr.

EP4761062

Anmeldetag

12. Dezember 2024

Veröffentlichung

17. Juni 2026

Rechtsraum

EP

IPC

H02K1/02, H02K1/14

Abstract

The inventions refers to an electric motor comprising a stator core (1), a plurality of coils (8) and a permanent-magnet rotor (2), the stator core (1) comprising a yoke (4) having a first axial length (L1), and a number of pole teeth (5) radially extending from the yoke (4) to the rotor (2). Each pole tooth (5) comprises a pole shoe (5b) at a free end directed to the rotor and a pole shaft (5a) extending from the yoke (4) to the pole shoe (5b). Each coil (8) is wound on a coil carrier (7) and each coil carrier (7) is arranged on a pole tooth (5) in that the respective pole tooth (5) extends through the coil carrier (7). The rotor (2) has a second axial length (M2) that is longer than the first axial length (L2), and each pole tooth (5) further comprises at least one pole extension (10a-10d) extending at least the pole shoe (5b) of the respective pole tooth (5) in axial direction beyond the yoke (4) to an axial end of the rotor (2). Additionally, the pole extensions (10a-10d) consist of a soft magnetic composite material. Due to the pole extensions (10a-10d) you can choose the length of the rotor (2) independently from the axial length of the yoke (4).

Anmelder

Firma

Wilo France S.A.S.

Land

🇫🇷 Frankreich

Fachgebiete