Magnetic module as well as assembly method and rotor thereof

Abstract

The invention provides a magnetic module as well as an assembly method and a rotor thereof. The magnetic module comprises a magnetic iron core, wherein a magnetic steel accommodating piece is connected to one side of the magnetic iron core through a connection piece, and magnetic steel is arranged between the magnetic iron core and the accommodating piece. The magnetic module buckles the magnetic steel on one side of the magnetic iron core through the magnetic steel accommodating piece, and the magnetic steel accommodating piece and the magnetic iron core are connected into a whole module through the connection piece, so that the structure is stable, the integrity is not affected by the temperature, longtime reliability of magnetic steel fixation is realized, leaked magnetism is small, and the genetic steel utilization rate is high. According to the magnetic module as well as the assembly method and the rotor thereof, the rotor comprises a rotor support, a plurality of positioning keys are fixed on the rotor support, a plurality of magnetic modules are connected to each positioning key, a positioning key groove matched with each positioning key is formed in the magnetic iron core of the magnetic module and is located in the middle position of one side, opposite to the magnetic steel accommodating piece, of the magnetic iron core, and the positioning keys are located in the positioning key grooves.

Description

technical field [0001] The invention relates to a magnetic pole and a rotor, in particular to a magnetic pole module, an assembly method thereof and a rotor. Background technique [0002] In the prior art, the magnetic steel in the rotor is mostly fixed on the rotor bracket by means of surface-mounted fixing. Generally, the magnetic steel is fixed on the inner surface of the rotor bracket by vacuum glue filling, and some poles are fixed first. The spacer bars are positioned on the rotor bracket, and the magnets are then pushed into the area between the spacer bars before vacuum potting. Since the glue plays a major role in fixing the magnetic steel, and the performance and stability of the glue are easily affected by temperature, the long-term reliability of the existing surface-mounted magnetic steel fixing method has a great risk. [0003] In order to facilitate the installation, disassembly and maintenance of the rotor magnetic poles, there is also a built-in magnetic st...

AI Technical Summary

Problems solved by technology

[0005] The existing surface-mounted magnetic steel fixing method cannot meet the long-term reliability requirements of the magnetic steel fixing method, and the existing built-in magnetic steel fixing method, the magnetic steel in the magnetic pole module is built-in, and the magnetic flux leakage is relatively large, resulting in magnetic The utilization rate of steel is low, and there is no stable connection between the magnetic steel and the magnetic pole core, the integrity of the structure is not good, and the magnetic steel is prone to the phenomenon that the magnetic pole core expands when it is magnetized

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