Patent · US Active

Multi-tooth coil winding for a three-phase rotating field machine

US11791683B2 · kind B2 · utility

0Cited by

1References

5Claims

0Family size

Assignee

ebm-papst Mulfingen GmbH & Co. KG · DE

Inventors

Gerhard Huth · Stuttgart, DE
Jens Krotsch · Niederstetten, DE

Key dates

Filing date	Dec 3, 2018
Grant date	Oct 17, 2023
Priority date	—
Expiry date	May 22, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH02K3/12
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A 3-strand rotating field machine with a 2p-pole stator with winding teeth (Z), formed with a winding arrangement in tooth coil technology, has three winding strands (W1, W2, W3). The winding arrangement is formed from wound coil groups (G) with coils that are multiply interleaved. The partial coils (T) of the coil groups (G) are arranged so they concentrically enclose one another from inside to outside and surround two or more winding teeth (Z). The respective coil winding numbers in the grooves (N) between the winding teeth (Z) are provided. Thus, in each case a substantially equal occupancy of each groove (N) is provided with the same effective total conductor cross section of the coils per groove cross section.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.