GAP-FREE STATOR OF ELECTROMAGNETIC REVERSED MACHINE AND METHOD OF THREE PHASE SINGLE LAYER WINDING APPLICATION ON IT Russian patent published in 2008 - IPC H02K1/12 H02K3/04 H02K15/08 

FIELD: electric engineering.

SUBSTANCE: gap-free stator of electromagnetic reversed machine consists of hollow stepped shaft with abut, stepped cylindrical hub, which is coaxially installed in this shaft with the help of flange, hollow cylindrical laminated packet, which is installed along external generatrix of hub surface, and single-layer three phase winding laid above the packet. According to invention, on two end surfaces of stepped cylindrical hub from two sides of cylindrical laminated packet along its circumference ring guiding sectors are installed with pricks on external radius according to common number of conductors of single-layer three phase winding. External surface of laminated cylindrical packet is installed not higher than the bottom edge of pricks, in both end parts of hub evenly on circumference with radius that is less than the radius of packet internal surface, guiding cylindrical bushings with ring pricks are installed coaxially to shaft, and single-layer three phase winding is installed in pricks of guiding ring sectors and ring pricks of guiding cylindrical bushings. At that every guiding cylindrical bushing is embraced with wires that belong only to two phases. Installation of single-layer three phase winding on this gap-free stator is carried out by means of installation of its phase windings on external cylindrical surface of stator sequentially one after another with three wires so that every wire from the beginning to the end is not broken. Winding is started from initial phase terminal of the first phase, then through ring prick of guiding bushing of final phase terminal the wire is installed on initial guiding cylindrical bushing in the first prick from the hub end, then installed in middle prick between bushings in guiding ring sector, then wire is installed along stator in parallel to stator longitudinal axis of stator through prick in the opposite guiding sector, and further through the first ring prick around nearest guiding bushing from the opposite side on neighbouring bushing in one-dimensional prick, and then installed on guiding sector with pricks on its side with shift that is equal to tripled number of conductors in one section of coil, and further along stator in parallel to stator longitudinal axis through prick in guiding sector around guiding cylindrical bushing through one from the previous on one-dimensional prick around neighbouring bushing by shift direction, and further through pricks in guiding sectors with the same shift to the opposite side, repeating operations until the wire of the first phase does not reach cylindrical bushing, from which installation is started, with outlet to initial bushing wire installation is carried out into neighbouring pricks in sectors and bushings, until set number of conductors in every section of coils is achieved, which corresponds to filling of pricks by one third. Then the second phase wire is installed, performing all operations similar to installation of the first phase winding, at that initial bushing for installation is the bushing that is located through one from the initial bushing of the first phase along with installation direction, after that wire of the third phase is installed, repeating all operations similar to the first phase winding, at that initial bushing for installation is the bushing that is located through one from the second initial bushing along with direction of the second phase installation.

EFFECT: improvement of power and technological characteristics of electromagnetic machines, increase of their reliability by reduction of possibility of occurrence of intercoil short-circuits in the process of stator assembly, and also simplification of manufacturing technology, which allows to expand the area of application of electric machines of this type.

16 cl, 6 dwg