A manufacturing method of a rotor, a repairing method of the rotor, the rotor and a motor

A manufacturing method and rotor technology, applied in the field of rotors and motors, can solve the problems of generator failure, resin paste failure, stator and rotor wear, etc., to achieve high mechanical strength, avoid jumping out, and ensure reliability.

Active Publication Date: 2019-07-02
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

This will cause the resin to stick to the magnets and cause the rusted magnets to jump out along the radial direction of the rotor under the mutual repulsion between the magnets, which will eventually cause the stator and rotor to wear out, and even cause serious failure of the generator

Method used

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  • A manufacturing method of a rotor, a repairing method of the rotor, the rotor and a motor
  • A manufacturing method of a rotor, a repairing method of the rotor, the rotor and a motor
  • A manufacturing method of a rotor, a repairing method of the rotor, the rotor and a motor

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Embodiment Construction

[0034] Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings. In the drawings, the shapes, dimensions, etc. of components may be exaggerated for clarity.

[0035] Below, will refer to Figure 1 to Figure 9 A method of manufacturing a rotor according to an embodiment of the present invention will be described in detail.

[0036] According to an embodiment of the present invention, the manufacturing method of the rotor may include: pasting the magnet 21 on the rotor yoke 10 to form the magnetic pole 20 (S10); The height of the cover 30 in the radial direction of the rotor is smaller than the height of the magnetic pole 20 in the radial direction of the rotor, so that a radial gap (S20) is formed between the protective cover 30 and the rotor yoke 10; A gap is reserved between the part of the cover 30 away from the pouring port 34 and the rotor yoke 10 as an air outlet (S30); pouring resin into the protective cover 30 through ...

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Abstract

The invention provides a manufacturing method of a rotor, a repairing method of the rotor, the rotor and a motor. The manufacturing method includes the following steps: pasting magnets on a rotor magnet yoke to form magnetic poles; using protective covers to cover the magnetic poles, wherein each protective cover is provided with a filling port and the height of the protective covers along a radial direction of the rotor is less than the height of the magnetic poles along the radial direction of the rotor so as to form radial gaps between the protective covers and the rotor magnet yoke; sealing peripheries of the protective covers and leaving gaps between the parts, being away from the filling ports, of the protective covers and the rotor magnet yoke as gas outlets; filling the protectivecovers with resin through the filling ports and curing the resin; and completely sealing the peripheries of the protective covers. According to the invention, the speed of resin filling can be conveniently controlled, the cavity can be ensured to be filled with the resin, and the integrity of the rotor magnet yoke, the magnetic poles, the protective covers and the resin can be ensured so as to effectively fix the magnets.

Description

technical field [0001] The invention relates to the field of motors, more specifically, to a method for manufacturing a rotor, a method for repairing a rotor, a rotor and a motor. Background technique [0002] The motor includes a rotor and a stator, and the rotor includes a rotor yoke and magnetic poles fixed to the rotor yoke. The magnetic poles are mainly fixed on the surface of the rotor yoke in two ways: surface mount type and plug-in type. [0003] The surface-mounted fixing method refers to fixing the magnet on the surface of the rotor yoke through resin bonding. For the wind turbines of wind turbines, since the magnets fixed by the surface-mounted fixing method are only fixed on the surface of the rotor yoke by resin bonding force, once a weak point of the seal appears during the process execution, it will be difficult for the wind turbine to grow. Under high temperature and high humidity operating conditions, the magnet will rust and pulverize due to insufficient ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K15/02H02K15/12H02K1/18
CPCH02K1/18H02K15/02H02K15/12
Inventor 宋佺王栋
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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