Switched reluctance motor for constructing magnetic circuit based on modularizing way

Abstract

The invention relates to a switched reluctance motor for constructing a magnetic circuit based on a modularizing way, which comprises a shell (200), a front end cover (310), a back end cover (320), a stator (400) and a rotor (500), wherein a concentrated winding is wound on each magnetic pole of the stator (400); the rotor (500) has a salient pole structure; a magnetic circuit part (520) of the rotor (500) is tightly matched or fixed on a crankshaft (510) by a connecting key; and salient poles on the magnetic circuit part (520) are not wound on the winding in any form. Particularly, an iron core part (420) of the stator (400) and / or the magnetic circuit part (520) of the rotor (500) are respectively constructed by N respective noncrystal alloy stator modules (422) and M noncrystal alloy rotor modules (522). The stator magnetic circuit and the rotor magnetic circuit of the switched reluctance motor of the invention are made of noncrystal alloy, thereby reducing the iron loss of the switched reluctance motor, being free from the limitation of the maximal width of a noncrystal alloy belt material and expanding the application range of the switched reluctance motor.

Description

technical field [0001] The present invention relates to switched reluctance motors, in particular to switched reluctance motors which use amorphous alloy laminations to construct stator and / or rotor magnetic circuits. Background technique [0002] The prior art reluctance synchronous motor is a synchronous motor which utilizes the unequal reluctance of the direct axis and the quadrature axis of the rotor to generate reluctance torque. Switched Reluctance Motor, referred to as SRM, is a synchronous motor developed since the mid-1980s on the basis of the reluctance synchronous motor, including a stator and a rotor with a salient pole structure. For the structure of sheet 420' and rotor punching sheet 520' see Figure 10 . The structure of the SRM is simple and strong, without any form of winding on the rotor, and problems such as poor cage casting and use of interrupted bars in the manufacturing process of the squirrel cage induction motor will not occur; at the same time, it...

AI Technical Summary

Problems solved by technology

However, due to technical limitations in manufacturing amorphous alloy strips, the maximum width of amorphous alloy strips can only reach 84mm at present. If the above-mentioned stator core preparation method is used to manufacture switched reluctance motors, the stator and / or Or the magnetic circuit part of the rotor can only be made very small, and its maximum diameter will not exceed 84mm. This switched reluctance motor is too small to meet the requirements of all traction motors used in electric vehicles and rail high-speed EMUs. Greatly restricts the development trend of switched reluctance motors using amorphous alloys as stator and / or rotor magnetic circuit parts

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