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Rotor assembly and motor

A component and rotor technology, applied in the field of rotor components and motors, can solve the problems of obstructing the flow of magnetic flux in the q-axis direction, low output power and efficiency, and insignificant difference in magnetic flux, so as to improve output power and efficiency, smooth magnetic flux, The effect of magnetic flux difference is obvious

Pending Publication Date: 2018-10-26
GREE ELECTRIC APPLIANCES INC
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  • Abstract
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Problems solved by technology

[0005] However, in this patent, since the slots are radially arranged at equal intervals, the direction of the magnetic flux between the slots is perpendicular to the radial flow of the rotor surface, and the slots hinder the flow of the magnetic flux in the q-axis direction, especially the closer to d In the slot part of the shaft, the q-axis magnetic flux is hindered more obviously, and the d-axis magnetic flux flows more smoothly, so the difference between the d-axis and q-axis magnetic flux is not obvious, and the salient pole ratio is not large, resulting in low output power and efficiency

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Embodiment Construction

[0048] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0049] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embo...

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Abstract

The invention provides a rotor assembly and a motor. The rotor assembly comprises a rotor body, wherein a plurality of slit grooves are formed in the rotor body; on the cross section vertical to the axis of the rotor body, the slit grooves extend along the straight line in the direction vertical to the d axis so that a magnetic flux passage parallel to q axis is formed in every two adjacent slit grooves. The rotor motor has the advantages of reasonable design and low cost, the magnetic flux of q axis can be smoother, the difference of magnetic fluxes of d axis and q axis is more obvious. And then the output power and efficiency are improved.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a rotor assembly and a motor. Background technique [0002] The direct start synchronous reluctance motor combines the structural characteristics of the induction motor and the synchronous reluctance motor. The torque is generated by the squirrel cage induction to realize the start, and the reluctance torque is generated by the rotor inductance gap to realize the constant speed operation. It can be directly connected to the power supply to realize the start operation. . Compared with the direct start permanent magnet motor, the direct start synchronous reluctance motor has no rare earth permanent magnet material, and there is no demagnetization problem, the motor cost is low, and the reliability is good; compared with the asynchronous motor, the efficiency is high and the speed is constant. [0003] The traditional synchronous reluctance motor requires a driver to start and contr...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/22H02K1/32
CPCH02K1/22H02K1/32
Inventor 史进飞陈彬肖勇李权锋
Owner GREE ELECTRIC APPLIANCES INC