The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 05, 2024
Filed:
Dec. 15, 2021
Grundfos Holding A/s, Bjerringbro, DK;
Steen Mikkelsen, Bjerringbro, DK;
Keld Folsach Rasmussen, Ans, DK;
GRUNDFOS HOLDING A/S, Bjerringbro, DK;
Abstract
An electric pump drive motor three-phase stator assembly () includes three sets of stator segments (S), configured in a ring about a stator axis (R). Each set includes n≥2 stator segments arranged in an n-fold rotational symmetry about the stator axis. Each stator segment includes a coil () having a first coil wire end and a second coil wire end. A plurality of 3n−3 connection wires (W) connect coils of a respective set of stator segments in series. A first and a second interposed stator segment are arranged in circumferential direction between the two connected coils of the respective set of stator segments. 3n−5 of the connection wires span across the first interposed stator segment at a distance (r) to the stator axis and across the second interposed stator segment at a second distance (r) to the stator axis (R). The second distance is larger than the first distance.