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1. CN111371212 - Motor rotor suitable for suspension bearing, compressor and air conditioning equipment

Office
China
Application Number 201811593752.8
Application Date 25.12.2018
Publication Number 111371212
Publication Date 03.07.2020
Publication Kind A
IPC
H02K 1/22
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
1Details of the magnetic circuit
06characterised by the shape, form or construction
22Rotating parts of the magnetic circuit
H02K 7/00
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
7Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
H02K 1/32
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
1Details of the magnetic circuit
06characterised by the shape, form or construction
22Rotating parts of the magnetic circuit
32with channels or ducts for flow of cooling medium
H02K 9/06
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
9Arrangements for cooling or ventilating
02by ambient air flowing through the machine
04having means for generating a flow of cooling medium
06with fans or impellers driven by the machine shaft
F04D 25/06
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
25Pumping installations or systems specially adapted for elastic fluids
02Units comprising pumps and their driving means
06the pump being electrically driven
F04D 29/057
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
29Details, component parts, or accessories
05Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
056Bearings
057hydrostatic; hydrodynamic
CPC
F04D 25/06
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
25Pumping installations or systems
02Units comprising pumps and their driving means
06the pump being electrically driven
F04D 29/057
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
29Details, component parts, or accessories
05Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
056Bearings
057hydrostatic; hydrodynamic
F04D 29/284
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
29Details, component parts, or accessories
26Rotors specially for elastic fluids
28for centrifugal or helico-centrifugal pumps ; for radial-flow or helico-centrifugal pumps
284for compressors
F04D 29/441
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
29Details, component parts, or accessories
40Casings; Connections of working fluid
42for radial or helico-centrifugal pumps
44Fluid-guiding means, e.g. diffusers
441especially adapted for elastic fluid pumps
H02K 1/22
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
1Details of the magnetic circuit
06characterised by the shape, form or construction
22Rotating parts of the magnetic circuit
H02K 1/32
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
1Details of the magnetic circuit
06characterised by the shape, form or construction
22Rotating parts of the magnetic circuit
32with channels or ducts for flow of cooling medium
Applicants GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI
珠海格力电器股份有限公司
Inventors LIU HUA
刘华
ZHANG ZHIPING
张治平
ZHONG RUIXING
钟瑞兴
LI HONGBO
李宏波
CHEN YUHUI
陈玉辉
YE WENTENG
叶文腾
QI JINGLI
亓静利
Agents 中国国际贸易促进委员会专利商标事务所 11038
Title
(EN) Motor rotor suitable for suspension bearing, compressor and air conditioning equipment
(ZH) 适用于悬浮轴承的电机转子、压缩机和空调设备
Abstract
(EN)
The invention relates to a motor rotor suitable for a suspension bearing, a compressor and air conditioning equipment. The motor rotor comprises: a magnetic part (1), wherein the magnetic part rotatesunder the action of an electrified coil; and a shaft body (2) connected with the magnetic part (1) and extending away from the magnetic part (1) in the axial direction of the motor rotor, wherein theshaft body (2) comprises a cavity (3) extending in the axial direction of the shaft body (2) and a connecting part (5) used for being connected with a compression working member, and the connecting part (5) and the cavity (3) are arranged at intervals. According to the technical scheme, the cavity is formed in the shaft body of the motor rotor, so that the problem that in the prior art, the critical rotating speed is low due to the fact that the weight of the motor rotor is large is solved; the cavity and the connecting part used for being connected with the compression working member are arranged in a spaced mode, and the motor rotor is provided with the weight-reducing cavity while the connecting part used for installing the compression working member is reserved; and the motor rotor has the advantages of being simple in structure, easy to machine and low in manufacturing cost.

(ZH)
本发明涉及一种适用于悬浮轴承的电机转子、压缩机和空调设备,电机转子包括:磁性部(1),用于在通电线圈的作用下转动;以及轴体(2),与磁性部(1)连接并沿电机转子的轴向远离磁性部(1)延伸,轴体(2)包括沿其轴向延伸的空腔(3)和用于连接压缩工作部件的连接部(5),连接部(5)和空腔(3)间隔设置。应用本申请的技术方案,电机转子的轴体上设有空腔,改善了现有技术中存在的电机转子因重量较大而导致的临界转速低的问题。进一步地,空腔与用于连接压缩工作部件的连接部间隔设置,电机转子在设置有减重的空腔的同时保留了用于安装压缩工作部件的连接部,电机转子具有结构简单、易于加工和制造成本低的优点。

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