Magnetic pole module of rotor, assembly method thereof and rotor

Abstract

The invention provides a magnetic pole module, an assembly method thereof and a rotor. The magnetic pole module provided by the present invention includes a magnetic pole core, a magnetic steel container is connected to one side of the magnetic pole core through a connecting piece, and a magnetic steel is arranged between the magnetic pole core and the magnetic steel container. The magnetic pole module provided by the present invention buckles the magnetic steel on one side of the magnetic pole core by using the magnetic steel containing part, and uses the connecting part to connect the magnetic steel containing part and the magnetic pole core to form an integral module. The structure is stable and the integrity is not affected by temperature. , It is beneficial to realize the long-term reliability of the magnetic steel fixing, the magnetic leakage is small, and the utilization rate of the magnetic steel is high. The rotor provided by the present invention includes a rotor bracket on which a plurality of positioning keys are fixed, and each positioning key is connected with a plurality of magnetic pole modules, and the magnetic pole core of the magnetic pole module is provided with positioning key slots matching the positioning keys , the positioning keyway is located in the middle of the side of the magnetic pole core opposite to the magnetic steel holder, and the positioning key is located in the positioning keyway.

Description

technical field [0001] The invention relates to a magnetic pole and a rotor, in particular to a magnetic pole module of the rotor, an assembly method thereof and the 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...

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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