ROTOR SHAFT ASSEMBLY, ROTOR, AND MOTOR - GREE ELECTRIC APPLIANCES INC ZHUHAI

Title:

ROTOR SHAFT ASSEMBLY, ROTOR, AND MOTOR

Document Type and Number:

WIPO Patent Application WO/2019/141035

Kind Code:

A1

Abstract:

Provided are a rotor shaft assembly, rotor, and motor, said rotor shaft assembly comprising: a magnetic core (10); a first end shaft (20); a second end shaft (30); a protective cover (40), the protective cover (40) being provided, in sequence, with a first through-hole (41), a second through-hole (42), and a third through-hole (43); the first end shaft (20) is set inside the first through-hole (41), at least part of the magnetic core (10) is arranged inside the second through-hole (42), and the second end shaft (30) is set inside the third through-hole (43); the minimum distance between the center line of the protective cover (40) and the hole wall of the first through-hole (41) is a, the minimum distance between the center line of the protective cover (40) and the hole wall of the second through-hole (42) is b, and the minimum distance between the center line of the protective cover (40) and the hole wall of the third through-hole (43) is c, wherein at least one of a and c is not equal to b. The rotor shaft assembly solves the problem in the prior art of a rotor shaft assembly being prone to off-center axial alignment when assembling the end shaft with a magnet.

Inventors:

PENG LIMING (CN)
JIA JINXIN (CN)
ZHANG XIAOBO (CN)
LIU JIANNING (CN)
ZHANG FANG (CN)
LI GUANGHAI (CN)
GUO CHANGGUANG (CN)
WEI QIONG (CN)
LI ZHONGYU (CN)
YAN JIN (CN)
LIANG JIANDONG (CN)
XIONG BOWEN (CN)
WANG ZEYE (CN)

Application Number:

PCT/CN2018/121458

Publication Date:

July 25, 2019

Filing Date:

December 17, 2018

Export Citation:

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Assignee:

GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)

International Classes:

H02K7/00; F16C3/02

Foreign References:

CN108054867A	2018-05-18
CN207819654U	2018-09-04
CN106100182A	2016-11-09
CN105449920A	2016-03-30
CN201298773Y	2009-08-26
CN103511444A	2014-01-15
US20150084464A1	2015-03-26

Other References: