Rotor module and assembly method thereof

Abstract

The invention provides a rotor module and an assembling method thereof. The rotor module comprises a rotor module support. A plurality of positioning keys are fixed to the rotor module support. A plurality of magnetic pole modules are connected to each positioning key. Each magnetic pole module comprises a magnetic pole iron core. A positioning key groove matched with the corresponding positioning key is formed in the middle of one side of each magnetic pole iron core, and each positioning key is located in the corresponding positioning key groove. According to the rotor module, the positioning keys are adopted to be connected with the magnetic pole modules, and the positioning key grooves of the magnetic pole iron cores of the magnetic pole modules are formed in the middles of the yoke portions of the magnetic pole iron cores, so that sectioning of a rotor is not restricted by magnetic pole module fixing any longer, and the sectioning design of the rotor is facilitated; meanwhile, the positioning key grooves are formed in the middles of the magnetic core iron core yoke portions, and therefore influences on a rotor magnetic circuit are quite small.

Description

technical field [0001] The present invention relates to a rotor, in particular to a rotor module and an assembly method thereof. 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. In order to facilitate the installation, disassembly and maintenance of the rotor magnetic poles, the prior art proposes a technical solution for modular assembly of the magnetic poles. Each magnetic pole of the rotor adopts a single form (equivalent to a magnetic pole module), and each magnetic pole is single The body includes a pole core (or called a pole core) punched by a pole punch. The magnetic steel is embedded i...

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Problems solved by technology

[0004] With the need of modular development, the rotor needs to adopt a split structure design. However, neither the existing surface-mounted nor built-in magnetic steel fixing methods are conducive to splitting the rotor.

Although the existing technology realizes the modularization of magnetic poles, the fixed structure of assembling the magnetic pole modules on the rotor bracket is not conducive to the splitting of the rotor. The magnetic pole fixing strip is located between the two columns of magnetic pole modules, and the splitting of the rotor cannot Fixed pole fixing strip

At the same time, the magnetic pole fixing strip is located between each column of magnetic pole modules, which greatly affects the magnetic circuit of the rotor

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