Abstract:
The motor includes a stator assembly 201 comprising a plurality of pairs of windings 203A-C, each pair of windings 203A-C comprising a first winding for forming a first pole and a second winding for forming a second, opposite, pole, each winding having an input termination 205 and an output termination 207. The stator assembly further comprises a plurality of pairs of identical busbars 209A-C, each pair of busbars being associated with a respective pair of windings 203A-C. Each pair of busbars 209A-C comprises an input busbar 211 connecting the input terminations 205 of the first and second windings in the respective pair of windings, and an output busbar 213 connecting the output terminations 207 of the first and second windings in the respective pair of windings 203A. A tab 215 associated with each bushbar connects to the control modules for selectively energising pairs of windings and an insulating housing 217fits over the bus bar assembly and includes attachment feet 219 for connection to the stator assembly (fig 6 not shown).
Abstract:
This double stator-type rotary machine is provided with: an annular rotor (2); an outer stator (3) that is disposed on the outer side of the rotor; and an inner stator (4) that is disposed on the inner side of the rotor (2). The rotor (2) is provided with permanent magnets (2d) that are arranged on the inner stator (4) side.
Abstract:
[Problem] Smooth actuations and strong reluctance torques in both rotation directions can be obtained, it is possible to reduce vibrations or noises due to rotation fluctuation, acceleration and deceleration according to the same apparatus operation can be possible, and power generated from regeneration braking can be stored to enhance an energy efficiency. [Solving Means] A rotor having rotation salient poles, a stator having fixed salient poles and formed with a plurality of field winding sets, K control signal output sections outputting control signals by detecting a plurality of sections to be detected formed on a cylindrical body or a disk pivoted to the rotor by a plurality of sensors installed at positions corresponding to the respective fixed salient poles such that the plurality of sections to be detected are opposed to a track formed in a circumferential direction, and a power-feeding control section having control circuits operating according to respective control signals and controlling directions and intensities of excitation currents, where the rotation salient poles are opposed to at least two of the fixed salient poles, and the excitation currents are controlled such that magnetic fields in the same direction occur in rotation salient poles of the respective salient poles advanced by at least one and magnetic fields disappear in rotation salient poles whose trailing ends are opposed to the fixed salient pole.
Abstract:
A double-stator switched reluctance motor (A) includes an annular rotor (10), an outer stator (20) disposed outside the rotor (10), and an inner stator (30) disposed inside the rotor (10). Phases of the salient poles in a rotational direction of the rotor (10) are different from each other in at least one of a set of first stator salient poles (21) and second stator salient poles (31) and a set of first rotor salient poles (12) and second rotor salient poles (13).
Abstract:
A motor including a sealed rotor with at least one salient rotor pole and a stator comprising at least one salient stator pole having an excitation winding associated therewith and interfacing with the at least one salient rotor pole to effect an axial flux circuit between the at least one salient stator pole and the at least one salient rotor pole.
Abstract:
Es wird ein elektromagnetischer Drehantrieb vorgeschlagen, der als Tempelmotor ausgestaltet ist, mit einem Rotor (3), welcher berührungslos magnetisch antreibbar ist, welcher spulenfrei und frei von Permanentmagneten ausgestaltet ist, und welcher einen magnetisch wirksamen Kern (31) umfasst, sowie mit einem Stator (2), mit welchem der Rotor (3) im Betriebszustand berührungslos magnetisch um eine Solldrehachse antreibbar ist, wobei der Stator (2) eine Mehrzahl von Spulenkernen (4) aufweist, von denen jeder einen stabförmigen Längsschenkel (41) umfasst, welcher sich von einem ersten Ende (43) in einer Richtung parallel zur Solldrehachse bis zu einem zweiten Ende (44) erstreckt, wobei alle ersten Enden (43) durch einen Rückschluss (5) verbunden sind, und wobei eine Mehrzahl von Wicklungen (6; 61) zur Erzeugung eines elektromagnetischen Drehfelds vorgesehen ist, von denen jede einen der Längsschenkel (41) umgibt, und wobei die Spulenkerne (4) eine Mehrzahl von Permanentmagneten (45, 46) umfassen, mit welchen ein permanentmagnetischer Vormagnetisierungsfluss generierbar ist. Durch die Erfindung wird ferner ein Stator (2) für einen elektromagnetischen Drehantrieb vorgeschlagen, sowie eine Rotationsvorrichtung zum Fördern, Pumpen, Mischen oder Rühren von Fluiden.
Abstract:
The invention relates to an electric machine (1) comprising noise-reducing means (24) designed so as to obtain a resonance frequency of the electric machine within a resonance frequency range that does not match the range of frequency of the harmonics of the electric machine, more precisely between 1500Hz and 2500Hz.
Abstract:
An electrical motor system comprises a switched reluctance electrical motor comprising a rotor section and a stator section, the rotor section comprising a plurality of rotor teeth and the stator section comprising a plurality of stator teeth, the stator teeth wound with respective coils. Coil driver circuitry is coupled to the coils of the stator teeth and controls an independent phase of electrical power to each coil of the plurality of stator teeth. The coils of the stator teeth each have an inductance which absorbs electrical energy provided to that coil by the coil driver circuitry and subsequently releases at least a portion of the electrical energy back to the coil driver circuitry when that coil is not being actively driven by the coil driver circuitry. The coil driver circuitry comprises an electrical energy store configured to store the portion of the electrical energy released back from the inductance of each coil and the electrical energy provided to each coil of the stator teeth by the coil driver circuitry is augmented by the electrical energy stored in the electrical energy store.