Abstract:
The invention is applied to an electric device comprising a reel (10), whose central hub (11) carries end flanges (12, 13); a coil winding (20); and an outer lamination stack (30). The insulating process comprises the steps of: providing an electric insulating means (40) having at least one electric insulating tape (40a), self-adhesive on at least one face and presenting two retention portions (41, 42), each to be adhered to one of the inner or outer faces (12a, 13a, 12b, 13b) of a respective end flange (12, 13); and a covering portion (43) to cover the whole axial extension of the coil winding (20) regions confronting with an adjacent portion of the lamination stack (30); adhering each of the retention portions (41, 42) to an end flange (12, 13) of the reel (10); and adhering, subsequently to the formation of the coil winding (20), the covering portion (43) on the axial extension of the latter.
Abstract:
The invention relates to the construction of the stator of electronically switched reluctance machines as the essential part of the entire construction with a plurality of U-shaped electromagnets. The stator consists of a frame (5) with an integrated end shield that carries the electromagnets (10). Said electromagnets are fixed by means of a tolerance-adjusting method that allows narrow tolerances in the air gap. The windings of said machines can be produced separately and preferably consist of metal strips. The cross-section of a motor-blower unit shows how the stator is integrated into an operative application.
Abstract:
Low cost motors including specifically two pole (1, 51 and 101) and four pole (201, 251, 278 and 301) motors are provided with magnetically conductive stacked laminations (3 and 203) each having a multi-pole portion with a rotor opening (9 and 209) and spaced and adjacent side legs (7, 7 and 207, 207) extending from circumferentially spaced areas of said multi-pole portion. Each side leg (7, 7 and 207, 207) terminates in an outer free extremity. The combined stacked laminations (3 and 203) provide stacked and adjacent side legs (7, 7 and 207, 207) in circumferentially spaced areas of stacked multi-pole portions with aligned rotor openings (9 and 209) for receiving a rotor (22 and 211). Each of the stacked side legs (7, 7 and 207, 207) having a combined predetermined outer cross-sectional coil winding area (27, 27 and 227, 227) and an electrically conductive coil (35 and 335) is positioned about the coil winding area (27, 27 and 227, 227) of the stacked side legs (7, 7 and 207, 207). Separate magnetically conductive stacked laminations (37 and 237) are provided for attachment to the outer free extremities of the spaced and adjacent stacked side legs (7, 7 and 207, 207). At least one of the separate magnetically conductive stacked laminations (37 and 237) are configured, arranged and dimensioned to be positioned between the spaced and adjacent side legs (7, 7 and 207, 207) during the forming of the laminations.
Abstract:
A four-pole stator assembly comprising: a bobbin assembly; and two c-shaped stator cores, each c-shaped stator core comprising a back and first and second pole arms extending from the back. The bobbin assembly comprises first and second bobbin portions, each bobbin portion comprising two hollow bobbin arms, each bobbin arm defining a slot for receiving a pole arm, and a winding wound around each bobbin arm. The c-shaped stator cores are arranged such that each c-shaped stator core bridges across both bobbin portions with one of the first and second pole arms extending through a slot in the first bobbin portion, and the other of the first and second pole arms extending through a slot in the second bobbin portion, the pole arms being fixed in the slots by adhesive.
Abstract:
An electric motor comprising: a frame; and a stator assembly; the stator assembly comprising a bobbin assembly and at least one c-shaped stator core. The frame comprises at least one lug, the bobbin assembly comprises at least one recess, and the stator assembly is fixed to the frame by fixing the lug inside the recess of the bobbin assembly.
Abstract:
Die Erfindung betrifft ein Verfahren und eine Vorrichtung (2) zum Bewickeln eines gezahnten Motorteils (4) eines Elektromotors unter Verwendung eines Spulendrahtes (8) mit rundem Drahtquerschnitt, wobei der Spulendraht (8) in einem Umformungsprozess in einen Spulendraht (8') mit einem vom runden Drahtquerschnitt abweichenden Drahtquerschnitt überführt und der umgeformte Spulendraht (8') zur Herstellung einer Drehfeldwicklung um die Zähne (6) des Motorteils (4) gewickelt wird.