Permanent-magnet generator rotor and its manufacturing method

A technology of permanent magnet generator and manufacturing method, which is applied in the direction of magnetic circuit rotating parts, manufacturing stator/rotor body, magnetic circuit shape/style/structure, etc., and can solve the problems of inability to eliminate axial magnetization component, magnetic dust blockage, magnetic Large steel volume and other issues, to achieve the effect of reducing the demagnetization effect, avoiding magnetic circuit saturation, and large effective air gap area

Inactive Publication Date: 2006-07-26
XINAN TOOLS GUIZHOU PROV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the claw-pole rotors widely used are solid in structure, but the magnetic circuit is long, and there is an axial magnetization component (some generators have a magnetic isolation sleeve, but the axial magnetization component can only be weakened but not eliminated), and the volume of the magnetic steel is relatively large. Large, the axial component of the magnetic field may cause excessive wear of the bearing, and the small air gap may easily cause blockage of magnetic dust

Method used

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  • Permanent-magnet generator rotor and its manufacturing method
  • Permanent-magnet generator rotor and its manufacturing method
  • Permanent-magnet generator rotor and its manufacturing method

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Embodiment Construction

[0018] Embodiments of the present invention: as attached figure 1 or attached figure 2 As shown, it is composed of a rotating shaft (7), a rotor outer ring (2), a spoke wheel rotor body (1) and 12 straight rare earth magnets (3), and the spoke wheel rotor body (1) is mounted on the shaft On (7), the rotor outer ring (2) is press-fitted on the surface of the spoke-wheel rotor body (1), and several straight lines (5) are rolled on the surface of the spoke-wheel rotor body (1). The body (1) is provided with 6 through holes (6), as attached image 3 As shown, there are 12 dovetail-shaped straight grooves (4) on the surface of the rotor outer ring (2), and the straight grooves (4) are parallel to the axis of the rotor outer ring (2), and the straight rare earth magnets ( 3) has a dovetail-shaped cross section, and 12 straight rare-earth magnets (3) are respectively embedded in 12 dovetail-shaped straight grooves (4). Of course, as attached Figure 4 As shown, the cross-section...

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Abstract

This invention discloses one permanent generating motor rotor and its process method, which adopts straight bar rare earth magnetic steel paralleling to the motor rotor surface to make each steel vertical axis line parallel to the permanent magnetic motor rotor axis line; the rotor is composed of rotor axis, rotor outer ring, radio rotor and two blocks of straight rare earth magnetic steel; the radio rotor is fixed on the axis and the rotor outer ring is fixed on the rotor surface and the rare earth magnetic steel is fixed on the rotor outer ring surface.

Description

Technical field: [0001] The invention relates to a generator rotor and a manufacturing method thereof, in particular to a permanent magnet generator rotor and a manufacturing method thereof. Background technique: [0002] In recent years, with the promotion and application of high-performance NdFeB permanent magnet materials, rare earth permanent magnet alternators (hereinafter referred to as permanent magnet generators) have appeared. Compared with traditional excitation generators, permanent magnet generators are small in size and high in output power, and their brushless structure can increase the service life and have a certain energy-saving effect. However, the magnets of the generator rotor of the prior art are generally a ring-shaped whole, so that the consumption of rare earth magnets is relatively large, and the magnets of the prior art are installed obliquely on the surface of the outer ring of the rotor, so that the mechanical structure of the magnets and the roto...

Claims

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Application Information

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IPC IPC(8): H02K1/27H02K15/03
Inventor 沈家喜
Owner XINAN TOOLS GUIZHOU PROV
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