Multi-center iron core coil-free permanent magnet motor

Abstract

The invention discloses a multi-center iron core coil-free permanent magnet motor and belongs to the technical field of new energy or energy-saving motors. The motor comprises permanent magnets, movable discs, x middle movable discs and n stationary discs, wherein the discs are fixedly superposed on a spindle 5 according to a sequence from a first movable disc, a stationary disc, a middle movabledisc, the stationary disc, ..., to a second movable disc; a stator winding is arranged in each stationary disc; and the stator windings are connected through leads and are led out to be connected with a controller. The motor is characterized in that: each pole is wound into (2+y) coil sheets of which central coils are horizontally parallel through an enameled wire; 24 or (24+e) coil sheets are connected in series into a layer in one phase; and a three-phase motor has three layers or 3k layers which are uniformly distributed in circle areas of the stationary discs according to an electric phase angle. By changing the connection mode of serial connection or parallel connection of the (2+y) coil sheets in each pole so as to widen the application range of the needed voltage or current, the number of turns of the coils and the induced flux of each pair of magnetic poles are increased by (2+y) times; therefore, the output power of motors with the same diameter is improved by (2+y) times.

Description

technical field [0001] The invention relates to a permanent magnet motor with multi-center coreless coils, which belongs to the technical field of new energy or energy-saving motors, in particular to a permanent magnet motor with high efficiency coreless coils that can be used as a wind power generator. Background technique [0002] In the prior art, disc-type coreless permanent magnet generators generally have the problems of large motor diameter, high speed, and low power generation efficiency; for example, Japanese JP2007-336784A and JP2007-336783A disclose a permanent magnet generator respectively , its shortcoming is that due to the limitation of the area of ​​the radial circle, when making a high-power multi-pole, low-speed, high-voltage, high-frequency generator, the diameter of the motor will be designed to be very large to meet the requirements of setting permanent magnets. And the radial area required by the coreless coil, and the structure is relatively complicate...

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Problems solved by technology

[0002] In the prior art, disc-type coreless permanent magnet generators generally have the problems of large motor diameter, high speed, and low power generation efficiency; for example, Japanese JP2007-336784A and JP2007-336783A disclose a permanent magnet generator respectively , its shortcoming is that due to the limitation of the area of ​​the radial circle, when making a high-power multi-pole, low-speed, high-voltage, high-frequency generator, the diameter of the motor will be designed to be very large to meet the requirements of setting permanent magnets. And the radial area required by the coreless coil, and the structure is relatively complex, the volume is large, and the production cost is high, so it is difficult to promote in practical applications

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