Abstract: Electrical machines having pole teeth which can be equipped with a permanent magnet are intended to be capable of being assembled more easily. Provision is made for this purpose for two pole tooth halves (1,2) to be provided for each pole tooth, each of which two pole tooth halves has two opposing end sides. At least one end-side plate (3), which connects in each case one end side of the two pole tooth halves (1,2) to one another, is used for forming a pocket (5) between the two pole tooth halves (1,2), into which pocket a permanent magnet can be inserted. A space for the permanent magnet can therefore be kept free during assembly of the pole tooth or during winding thereof. Since the permanent magnet only needs to be inserted into the pocket (5) relatively late, the entire assembly process can be simplified.
Type:
Grant
Filed:
February 19, 2007
Date of Patent:
December 13, 2011
Assignee:
Siemens Aktiengesellschaft
Inventors:
Mark Freudenberg, Markus Jakobi, Josef Maidl, Michael Menhart
Abstract: In some embodiments, an electromagnetic motor/generator may include one or more of the following features: (a) a frame, (b) a magnetic section having an upper magnet, a lower magnet, and a center magnet, coupled to the frame, and (c) at least one solenoid coupled to the frame and the center magnet.
Abstract: In a stator of a vehicle rotary electric machine, a stator winding includes U-shaped conductor segments having a pair of straight portions disposed in a pair of slots spaced apart at a fixed pitch in layers. Each U-shaped conductor segment has a generally rectangular cross section and a width to fit the slot. The U-shaped conductor segments are formed of large size U-shaped conductor segments and small size U-shaped conductor segments, and each of the large size U-shaped conductor segments has a pair of straight portions disposed at radially opposite ends of the layers and have corners whose radius is larger than corners of the small size U-shaped conductor segments. Therefore, it is easy to form rounded corners at portions of the stator winding thereby to provide uniform insulation coating at surfaces of the stator winding exposed to foreign particles.