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Slotless motor rotor

A slotless motor and rotor technology, applied in the field of rotors, can solve the problems of large iron loss, high energy consumption, and low magnetic permeability of the rotor, and achieve the effects of optimizing magnetic permeability, improving efficiency, and enhancing the strength of the excitation magnetic field.

Inactive Publication Date: 2007-02-14
肖振霞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because only the magnetic poles consistent with the magnetic orientation direction of the silicon steel sheet have the highest magnetic permeability, and the magnetic poles perpendicular to the magnetic orientation direction of the silicon steel sheet have the lowest magnetic permeability, and the magnetic permeability of the magnetic poles that form an angle with the magnetic orientation direction of the silicon steel sheet varies with the size of the included angle. The larger the included angle, the lower the magnetic permeability, so the rotors of the two patents have large iron loss, high energy consumption, and low power generation efficiency

Method used

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  • Slotless motor rotor
  • Slotless motor rotor
  • Slotless motor rotor

Examples

Experimental program
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Embodiment Construction

[0020] Referring to the accompanying drawings, the slotless motor rotor described in this embodiment includes a rotating shaft 1 with a built-in pulley 2, two pole plates 3 and a slip ring 5 in contact with the carbon brush 4 on the rotating shaft 1. The rotating shaft 1 is cylindrical and stepped , the middle section between the two pole disks 3 is the thickest, and the two end sections are the thinnest. Each pole disk 3 includes 8 magnetic poles 6 arranged radially and uniformly. It is arc-shaped, and each magnetic pole 6 is superimposed with oriented silicon steel sheets with a thickness of 0.25mm-0.35mm and fixed together with easy-to-cure glue or other methods. Each oriented silicon steel sheet is made according to the orientation direction, and each magnetic pole 6 is wound There are exciting coils 7, and the winding directions of the exciting coils 7 on adjacent magnetic poles 6 are opposite. In order to firmly fix each magnetic pole 6 with the rotating shaft 1, two pai...

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Abstract

Structure of the rotor is as follows. A belt pulley and two polar disks are fixed on a rotating shaft. Each polar disk includes even pieces of magnetic poles arranged evenly in radiating. Inner segments of each magnetic pole are adjacent closely, and outer end is in cambered surface. Stacking and fixing multiple pieces of oriented silicon steel sheet manufacture each magnetic pole. Each oriented silicon steel sheet is prepared according to oriented direction. Exciting coil connected to exciting mechanism electrically is enwound on each magnetic pole. Directions of adjacent exciting coils are reversed. The rotor takes full advantage of characters of high magnetic conductivity and low iron loss of cold rolling oriented silicon steel sheet. Thus, efficiency of rotor is raised, and dissipation of energy is reduced. Moreover utilization rate of materials is raised.

Description

technical field [0001] The invention relates to a rotor for generators and motors, more specifically to a slotless motor rotor. Background technique [0002] Traditional generators and motors mainly include stator and rotor. The stator core is laminated with low-silicon steel sheets that can punch grooves and have large iron loss. Several grooves need to be punched on each laminate. , the stator coil is embedded in the groove; the rotor includes a rotating shaft, and the rotating shaft is equipped with a rotor pole punched and laminated with a silicon steel sheet or a steel plate, and an excitation coil is wound on the rotor pole. The generators and motors of this traditional structure have disadvantages such as large volume, high iron loss, low efficiency, low material utilization rate, and difficult maintenance. In order to overcome the above disadvantages, the patent No. 97242398.2 slotless static excitation synchronous generator and the patent No. 97242399.0 slotless sy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/24H02K3/04
Inventor 肖振霞
Owner 肖振霞