Permanent magnet synchronous motor and assembling method thereof
A permanent magnet synchronous motor and magnetic steel technology, applied in the field of electric motors, can solve the problems such as difficult processing of the cogging of the iron core, easy falling off of the magnetic steel, and difficulty in automation, etc., to achieve simple and fast assembly, strong magnetic field driving force, and improve assembly efficiency. Effect
Inactive Publication Date: 2017-06-06
AAC TECH PTE LTD
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Problems solved by technology
[0005] The stator of a permanent magnet synchronous motor usually includes a rotor and a stator, and the stator core of a permanent magnet synchronous motor in the related art is provided with cogging for positioning the coil windings, but the cogging of the above-mentioned iron core is not easy to process and there are output torque fluctuations , it is difficult to achieve high-precision speed and position control; at the same time, the rotor magnet of the permanent magnet synchronous motor is a split structure distributed in the rotor core, and the magnet is easy to fall off during work, and the processing and assembly process of the rotor magnet cumbersome, not easy to automate production
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[0037] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0038] Please also refer to Figure 1-Figure 3 ,in, figure 1 It is the three-dimensional structural diagram of the permanent magnet synchronous motor of the present invention; figure 2 for figure 1 The three-dimensional structure exploded view of the permanent magnet synchronous motor shown; image 3 for along figure 1 The cross-sectional view of the A-A line in the middle. The permanent magnet synchronous motor 200 includes a rotor 1 and a stator 2 driving the rotor 1 to rotate.
[0039] The rotor 1 includes a rotating shaft 11 and a cylindrical magnetic steel 12 arranged around the rotating shaft 11 . The magnetic steel 12 is in the shape of a hollow cylinder. By arranging the magnetic steel 12 in a cylindrical shape, the processing of the magnetic steel 12 is facilitated, and the assembly of the rotating shaft 11 and the magnetic steel 12 is ...
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The present invention provides a permanent magnet synchronous motor. The permanent magnet synchronous motor comprises a rotor and a stator. The rotor comprises a rotating shaft and cylindrical magnetic steel arranged around the rotating shaft. The stator comprises a substrate, a cylindrical iron core held in the substrate and arranged around the magnetic steel and a coil winding assembling with the iron core. The coil winding is in axial symmetry arrangement about the center of the iron core. The coil winding comprises three coils inserted into the iron core, each three coil comprises a body portion and an extension portion extended from the two ends of the body portion. The three body portions are partially overlapped in the iron core, the three extension portions are extended along the radial direction of the iron core and are fixed at two end faces of the iron core. The three extension portions are mutually partially overlapped and are distributed in the step mode. The permanent magnet synchronous motor rotor magnetic steel and the stator iron core are arranged to be hollow cylindrical structures, the processing is convenient, and the assembling is simple.
Description
[0001] 【Technical field】 [0002] The invention relates to the technical field of motors, in particular to a permanent magnet synchronous motor and an assembly method thereof. [0003] 【Background technique】 [0004] Due to its compact structure, high power density, high work efficiency, and remarkable benefits in energy saving and consumption reduction, permanent magnet synchronous motors have been widely used in the fields of motors and generators. In recent years, there has been an increasing demand in the industrial field for equipment that uses permanent magnet synchronous motors to directly drive loads. The wide application of these permanent magnet motor direct drive equipment will produce immeasurable energy-saving benefits. [0005] The stator of a permanent magnet synchronous motor usually includes a rotor and a stator, and the stator core of a permanent magnet synchronous motor in the related art is provided with cogging for positioning the coil windings, but the cog...
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IPC IPC(8): H02K21/14H02K21/02H02K15/02H02K15/00H02K3/28
CPCH02K3/28H02K15/00H02K15/02H02K21/02H02K21/14H02K3/04H02K3/47H02K15/045H02K15/061
Inventor 李林珍储著明
Owner AAC TECH PTE LTD