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Rotor assembly

A technology of rotor and assembly, applied in the field of rotor assembly, can solve the problems of reducing the rigidity of the rotor part, maintaining the rigidity of the rotor part, and reducing the performance, etc.

Inactive Publication Date: 2013-10-30
SAMSUNG ELECTRO MECHANICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, the interior permanent magnet motor according to the prior art has problems in using high-performance permanent magnets such as rare-earth magnet components to increase magnetic flux or obtain high-efficiency torque, and in addition to forming built-in permanent holes and restricting embedded permanent magnets. Problems with the design of the magnets to maintain the stiffness of the rotor section
Also, when increasing the embedding number of permanent magnets, there is a problem that the rigidity of the rotor portion may become small due to ensuring an embedding space, and when a small number of permanent magnets are embedding, there is a problem that expensive permanent magnets are required to exhibit higher performance or degraded performance when using ordinary permanent magnets

Method used

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Embodiment Construction

[0029] The purpose, features and advantages of the present invention will be more clearly understood through the following description of the preferred embodiments in conjunction with the accompanying drawings. In all the drawings, the same reference numerals are used to denote the same or similar components, and redundant descriptions of the same or similar components are omitted. In addition, in the following description, the terms "first", "second", "one side", and "the other side" can be used to distinguish one component from another component, but the structure of these components should not be understood as Limited by the above terms. Moreover, in the description of the present invention, when it is determined that the detailed description of the related technology will obscure the gist of the present invention, the detailed description of the related technology is omitted.

[0030] Hereinafter, preferred embodiments of the present invention will be described with referenc...

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Abstract

According to a preferred embodiment of the present invention, in a structure in which a permanent magnet is embedded radially outwardly from a rotor portion, a pair of permanent magnets is embedded in a V-letter shape and a slit in a longitudinal direction is radially formed between the pair of permanent magnets. According to the preferred embodiment of the present invention, it is possible to implement relatively higher torque performance while minimizing the number of permanent magnets embedded in an interior permanent synchronous machine (IPMSM).

Description

[0001] Cross references to related applications [0002] This application claims the priority of a Korean patent application entitled "Rotor Assembly" with the application number No. 10-2012-0040973, the filing date of April 19, 2012, and the entire content of which is hereby incorporated by reference Incorporated into this application. Technical field [0003] The invention relates to a rotor assembly. Background technique [0004] Generally, motors that generate rotational drive power by embedding permanent magnets in a rotor can be classified into permanent magnet surface mount motors and built-in permanent magnet motors according to the connection structure of the permanent magnets installed in the rotor. [0005] As described in Korean Patent No. 2009-0072209, by embedding multiple permanent magnets in the rotor, in addition to using the torque of the permanent magnets, the built-in permanent magnet motor can also be used due to d-axis (magnetic flux) induction and q-axis (Torq...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/27
CPCH02K1/2766H02K1/27
Inventor 金昶成李光贤李在晟杨晛稙裵汉京
Owner SAMSUNG ELECTRO MECHANICS CO LTD