Rotor and motor
A technology for motors and rotors, applied in electric components, manufacturing stator/rotor bodies, electrical components, etc., can solve problems such as difficulty in improving magnet position accuracy, influence of rotor magnetic characteristics on position accuracy, and stable rotor magnetic characteristics
Pending Publication Date: 2022-04-12
TOSHIBA LIFESTYLE PROD & SERVICES CORP +1
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
In such a rotor, the positional accuracy of the magnet has a large influence on the magnetic characteristics of the rotor
However, in the prior art, it is difficult to improve the positional accuracy of the magnet and stabilize the magnetic characteristics of the rotor.
Method used
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Embodiment Construction
[0016] Hereinafter, the rotor, the motor, and the method of manufacturing the rotor according to the embodiments will be described with reference to the drawings. In the following description, structures having the same or similar functions are denoted by the same reference numerals. Furthermore, overlapping descriptions of these structures may be omitted.
[0017] figure 1 It is a sectional view of the washing machine provided with the electric motor of this embodiment.
[0018] In the following description, the vertically lower side which is the installation surface side of the washing machine is referred to as the lower side of the washing machine, and the vertically upper side which is the opposite side to the installation surface is referred to as the upper side of the washing machine. Further, left and right are defined based on a direction in which the washing machine is viewed from a user standing in front of the washing machine. In addition, the side closer to the ...
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Abstract
Provided is a rotor which has stable magnetic characteristics and can be manufactured inexpensively. A rotor according to an embodiment is a rotor that is provided to a motor, faces a stator, and rotates about a rotation axis. The rotor includes first magnets and second magnets alternately arranged in a circumferential direction. One of the first magnet and the second magnet is a main magnet, and the other is an auxiliary magnet. The main magnets are magnetically oriented in the radial direction. The auxiliary magnets are magnetically oriented in the circumferential direction. The first magnet has a pair of first circumferential end surfaces. The pair of first circumferential end faces respectively face two circumferential sides. The second magnet has a pair of second peripheral end surfaces. The pair of second circumferential end faces respectively face two circumferential sides. The second peripheral end surface is in surface contact with the first peripheral end surface of the adjacent first magnet. A pair of second peripheral end surfaces of the one second magnet are parallel to each other.
Description
technical field [0001] Embodiments of the present invention relate to a rotor and an electric motor. Background technique [0002] There is known a motor in which the drive torque is improved by arranging the magnets of the rotor in a Halbach array. In such a rotor, the positional accuracy of the magnets has a large influence on the magnetic characteristics of the rotor. However, in the prior art, it is difficult to improve the positional accuracy of the magnets, and it is difficult to stabilize the magnetic characteristics of the rotor. [0003] Prior technical literature: [0004] Patent documents: [0005] Patent Document 1: International Publication No. 2013 / 008284 Contents of the invention [0006] The problem to be solved by the present invention is to provide a rotor and a motor that have stable magnetic properties and can be manufactured at low cost. [0007] The rotor in the embodiment is provided in the motor, faces the stator, and rotates around the rotatin...
Claims
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Login to View More IPC IPC(8): H02K1/274H02K15/03
Inventor 矶永贤金田至功横山光之中山忠弘
Owner TOSHIBA LIFESTYLE PROD & SERVICES CORP