Outer disk motor having barrier stator

Abstract

The present invention provides an outer disk motor having a barrier stator. The outer disk motor comprises a pivot shaft; a plurality of disc type outer rotors arranged in parallel, wherein each disctype outer rotor comprises a disc body and an even number of permanent magnets, the center of each disc body is vertically and fixedly arranged at the pivot shaft, the adjacent permanent magnets are arranged uniformly in a mode of homopolar opposition, the different magnetic poles of the permanent magnets of the disc type outer rotors are opposite to each other; a barrier stator comprising a plurality of strip-shaped iron cores which are parallel to the axial direction and are uniformly arranged and distributed at a round tube by taking the pivot shaft as a center, wherein the two poles of each strip-shaped iron core respectively correspond to the permanent magnets, and the number of the iron cores is greater than one time and less than two times of the number of the permanent magnets; andan enable controller configured to supply alternating current clock rate drive signals to allow each two adjacent clock rate drive signals to have uniform phase difference, wherein the sum of the phase differences of the barrier type stator is a non-zero integral multiple of 360 degrees.

Description

technical field [0001] An outer disk motor, in particular an outer disk motor with a fence stator. Background technique [0002] The common permanent magnet DC servo motor is to set the permanent magnet on the outer rotor, and set the armature coil on the core of the stator. Whether the current passes through the armature coil, it will generate heat due to resistance, or during the commutation process. It is difficult to dissipate the sudden heat when the current jump occurs in the middle; if it is applied to the direct drive system, the high heat at the rotor will be transferred to the drive shaft, and it will gradually cause the deformation of the drive shaft after long-term use; on the contrary, Such as figure 1 In the permanent magnet AC servo motor 9 shown, the stator with the armature coil 91 is arranged on the outer layer of the motor, and the permanent magnet 93 is arranged on the rotor at the core, so the heat dissipation is better and the power to volume ratio is ...

AI Technical Summary

Problems solved by technology

A kind of known disc generator 8, such as figure 2 As shown, although a motor structure with a disk-type outer rotor 81 is disclosed, there is no appropriate answer to the above-mentioned heat generation and energy consumption problems

In addition, if the number of permanent magnets and coils 83 is not properly matched, the magnetic circuit will not act uniformly, and in each action cycle, it may cause uneven rotation with large and small output

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