Manufacturing method of skewed pole rotor
A manufacturing method and rotor technology, which is applied in the manufacture of motor generators, stator/rotor bodies, magnetic circuit rotating parts, etc., can solve the problems of poor manufacturability of oblique rotors, and achieve the effect of simplifying manufacturability
Active Publication Date: 2020-03-17
GUANGDONG WELLING ELECTRIC MACHINE MFG +1
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- Application Information
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Problems solved by technology
[0003] The purpose of the present invention is to overcome the problem of poor manufacturability of the oblique rotor in the prior art, and provide a manufacturing method of the oblique rotor, which can effectively reduce the production cost in the manufacturing process of the oblique rotor and improve production efficiency
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[0030] In the present invention, it should be understood that the orientation or positional relationship indicated by the terms "inner", "outer", "axial", "radial", "circumferential" etc. is based on the orientation or position shown in the drawings relationship, and also corresponds to the orientation or positional relationship actually used, is only for the convenience of describing the present invention and simplification of the description, and does not indicate that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the invention.
[0031] The invention provides a manufacturing method of a skewed pole rotor, the manufacturing method of the skewed pole rotor includes:
[0032] Step 1. Manufacturing the rotor stamping sheet by die stamping, so that the rotor stamping sheet includes a central axis hole 103, a plurality of permanent magnet installation ...
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The invention relates to the motor field, and discloses a skewed pole rotor manufacturing method comprising the following steps: 1, making rotor punching sheets, wherein the punching sheet comprises a central axis hole, a plurality of permanent magnet mounting through holes arranged at intervals on the periphery and an outer protruding portion; the outer protruding portion has a central angle bisector, and the corresponding permanent magnet mounting through hole vertical line and the central angle bisector form an angle therein; 2, correspondingly stacking the plurality of punching sheets and connecting same, thus respectively forming a first rotor core section and a second rotor core section, wherein the rotor core section comprises a first surface and a second surface, and the corresponding permanent magnet mounting through hole vertical line is arranged in the central angle bisector clockwise direction on the first surface; 3, allowing the first rotor core section first surface to be opposite to the second rotor core section second surface, enabling corresponding permanent magnet mounting through hole vertical lines in the first and second rotor core sections to overlap, thus forming a permanent magnet slot; 4, inserting the permanent magnets in all permanent magnet slots.
Description
technical field [0001] The invention relates to the technical field of motors, in particular to a manufacturing method of a skew pole rotor. Background technique [0002] For motors, especially permanent magnet motors, complex space harmonic magnetic fields will be generated due to the limitation of pole-slot fit selection, slot opening and local saturation, which will cause induced voltage harmonics and torque ripple of motor windings, which is not conducive to Smooth control and operation of the motor. In view of the above problems, in practice, the way of rotor skew, that is, the way of rotor skew, is usually used to weaken the influence of air gap harmonics. However, due to the special structure of the interior permanent magnet (IPM) rotor, it is not possible to use the continuous oblique pole method in which each punching piece is rotated axially at a fixed angle in turn. Usually, only the permanent magnet and the rotor core can be segmented separately. The form of in...
Claims
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IPC IPC(8): H02K15/03H02K1/27
CPCH02K1/2773H02K15/03
Inventor 吴迪陈金涛诸自强
Owner GUANGDONG WELLING ELECTRIC MACHINE MFG