Composite type high-speed permanent magnet motor rotor and manufacturing method therefor

A technology of permanent magnet motor and manufacturing method, which is applied in the manufacture of motor generators, magnetic circuit rotating parts, stator/rotor bodies, etc., which can solve the problems of low manufacturing efficiency, difficult assembly, complicated manufacturing process, etc., and achieve the reduction of material And manpower waste, simple assembly, high precision effect

Pending Publication Date: 2018-03-13
天津飞旋高速电机科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems of complicated manufacturing process, low manufacturing efficiency, and difficult and dangerous assembly of permanent magnet motor rotors in the prior art, the invention discloses a simpler and safer rotor manufacturing method and a rotor with reasonable structure

Method used

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  • Composite type high-speed permanent magnet motor rotor and manufacturing method therefor
  • Composite type high-speed permanent magnet motor rotor and manufacturing method therefor
  • Composite type high-speed permanent magnet motor rotor and manufacturing method therefor

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Embodiment 1

[0040] like figure 2 , 3 As shown, this embodiment discloses a method for manufacturing a rotor of a composite high-speed permanent magnet motor, and a product produced according to the method. The steps of its production are as follows:

[0041] The shaft 1 is made of magnetically conductive material. In this embodiment, No. 45 steel is used. figure 2 The structure shown in , there is a concave part in the middle, and bosses are left on both sides, and its function is the same as that of the end plate 5 in the prior art (such as figure 1 ), which can block the left and right movement of the middle part, which is very important for high-speed rotating structures.

[0042] In this solution, the permanent magnet block 2 is composed of several small permanent magnet blocks, and the small permanent magnet blocks are arc-shaped structures, and the number in the circumferential direction and the axial direction is pasted according to the requirements. The permanent magnet bloc...

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Abstract

The invention relates to a composite type high-speed permanent magnet motor rotor and a manufacturing method therefor. The rotor consists of a shaft, a permanent magnet block, a copper foil and carbonfibers; the shaft body is packaged and fixed with the permanent magnet block, the copper foil and the high-intensity carbon fibers from inside to outside in sequence; a part, used for fixing the permanent magnet block, of the shaft body is processed by a lathe to form a concave part, and lug bosses for limiting the permanent magnet block are manufactured at the two ends; and the process is different from the prior art, wherein an end part is formed through interference fit in the prior art. In the manufacturing method of the invention, left and right movement of a middle part can be blocked by the lug bosses at the two ends, which is of great importance to a high-speed rotation structure; and by virtue of the integrally formed production process, the overall structural stability of the rotor is greatly reinforced.

Description

technical field [0001] The invention belongs to the field of high-speed motors, and in particular relates to a composite high-speed permanent magnet motor rotor and a manufacturing method thereof. Background technique [0002] The mainstream structure of the current high-speed permanent magnet motor rotor is as follows: figure 1 As shown, the outer surface of the magnetic shaft 1 is glued to the permanent magnet block 2, and then the outer ring is followed by a metal shielding sleeve 3 (aluminum sleeve or copper sleeve) and a carbon fiber sheath 4, and the last two ends are added with a non-magnetically conductive pressure plate 5 The compression is used to protect the permanent magnet block 2 . The main disadvantages of this structure are: [0003] (1) The metal shielding sleeve and the carbon fiber sheath outside the permanent magnet need to be made separately, and then through the interference fit, the method used often requires the rotor to be cooled by liquid nitrogen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/27H02K15/03
CPCH02K1/278H02K15/03
Inventor 毕刘新
Owner 天津飞旋高速电机科技有限公司
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