Electronically commutated electric motor and method for production thereof

• Main Authors: Seidler Siegfried, Nickel-Jetter Matthias
• Format: Patent
• Language: English
• Published: 22.11.2016
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERATION; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

An electronically commutated electric motor has an internal stator (18) and an external rotor (24). They are separated by an air gap (23). A circuit board (68) equipped with openings (58′, 70′, 72′) is arranged on the internal stator (18). The internal stator (18) has a lamination stack (22) that is equipped with a winding arrangement (60; 86, 88) whose terminals are implemented at least in part as wire segments (86E, 88E, 90). The lamination stack (22) of the internal stator (18) is covered, at least locally, by an insulating layer (20) made of a thermally stable plastic. Implemented on said layer are supporting elements (58; 70, 72) that project from the internal stator (18) toward the circuit board (68) and serve to secure wire segments (86E, 88E, 90) of the winding arrangement (86, 88). These supporting elements (58, 70, 72), with the wire segments mounted thereon, are each arranged in an associated opening (58′, 70′, 72′) of the circuit board (68) and are there soldered thereto.