CN103441595A - 一种电机转子 - Google Patents

一种电机转子 Download PDF

Info

Publication number
CN103441595A
CN103441595A CN2013103917785A CN201310391778A CN103441595A CN 103441595 A CN103441595 A CN 103441595A CN 2013103917785 A CN2013103917785 A CN 2013103917785A CN 201310391778 A CN201310391778 A CN 201310391778A CN 103441595 A CN103441595 A CN 103441595A
Authority
CN
China
Prior art keywords
mandrel
permanent magnet
rotor
eddy current
sleeve pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN2013103917785A
Other languages
English (en)
Other versions
CN103441595B (zh
Inventor
熊伟华
李健
董继勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Cigu Technology Co Ltd
Original Assignee
Nanjing Cigu Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nanjing Cigu Technology Co Ltd filed Critical Nanjing Cigu Technology Co Ltd
Priority to CN201310391778.5A priority Critical patent/CN103441595B/zh
Publication of CN103441595A publication Critical patent/CN103441595A/zh
Application granted granted Critical
Publication of CN103441595B publication Critical patent/CN103441595B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

一种电机转子，其包括芯轴、位于芯轴局部外围的涡流套及安装于芯轴上的永磁体，所述芯轴内部设置有通道，所述通道中设置有气液芯，所述通道与所述涡流套相通，所述永磁体沿着芯轴长度延伸方向的末端分别设有一隔磁环，所述永磁体和隔磁环的外围套设有一护套筒，所述涡流套位于所述护套筒的外侧且与所述护套筒之间留有间隙，所述涡流套、护套筒和芯轴的通道形成一个密闭空腔。本发明电机转子能够有效的降低转子（永磁体）温度，减小电机功耗进而提高电机效率。

Description

一种电机转子
技术领域
本发明涉及一种电机转子，尤其涉及一种大功率高速电机转子。
背景技术
现有的高速转子结构主要由护套筒、永磁体及芯轴等结构组成。其中护套筒材料通常选用如下两种：一种为金属护套筒，另一种为纤维套筒，其中金属护套筒中金属护套和永磁体材料均为导电材料，用于电机运行时电枢反应谐波磁场作用，在转子护套筒表面层产生主要涡流，使得转子温度升高。而纤维套筒无涡流产生，但是永磁体、芯轴会产生一定量涡流，温度也会升高，通过纤维套筒很难将热量导出，使得转子温度升高。
由于上述原因及现有转子散热条件有限，转子温度会逐步升高，当转子在高温工作或温度升高超过一定数值时，将会引起永磁体不可逆退磁衰减，电机性能逐步下降，进而丧失了永磁同步高速电机的节能优势。
因此，确有必要对现有技术进行改进以解决现有技术之不足。
发明内容
本发明提供一种电机转子，其能够有效解决磁悬浮永磁同步高速电机转子的发热问题。
本发明采用如下技术方案：一种电机转子，其包括芯轴、位于芯轴局部外围的涡流套及安装于芯轴上的永磁体，所述芯轴内部设置有通道，所述通道中设置有气液芯，所述通道与所述涡流套相通，所述永磁体沿着芯轴长度延伸方向的末端分别设有一隔磁环，所述永磁体和隔磁环的外围套设有一护套筒，所述涡流套位于所述护套筒的外侧且与所述护套筒之间留有间隙，所述涡流套、护套筒和芯轴的通道形成一个密闭空腔。
所述通道的长度延伸方向与所述芯轴的长度延伸方向相一致
本发明具有如下有益效果：本发明中当转子温度升高到一定温度时，在转子的密闭空腔内，灌装的工质开始气化，迅速将温度从高温部位传导至低温部位(轴两端)，遇冷后工质由气态变成液态，液态沿着涡流套，护套筒及芯轴内壁面流到发热高温部位，工质沿着壁面返回的过程是对转子热源冷却的过程，本发明电机转子能够有效的降低转子（永磁体）温度，减小电机功耗进而提高电机效率。
附图说明
图1为本发明电机转子的结构示意图。
具体实施方式
请参照图1所示，本发明电机转子包括芯轴1、位于芯轴1局部外围的涡流套2，芯轴1上设置有通道3，该通道3与涡流套2相通。芯轴1的通道3中还设置有气液芯4，该气液芯4用来控制气体单方向流动作用和护套筒外壁，涡流套、芯轴内壁液体的流量比值。其中通道3的长度延伸方向与所述芯轴1的长度延伸方向相一致。本发明电机转子还包括有安装于芯轴1上的永磁体5，该永磁体5沿着芯轴1长度延伸方向的两末端分别设有一隔磁环6，在永磁体5和隔磁环6的外围套设有一护套筒7。护套筒7和涡流套2之间留有空隙，其中涡流套2、护套筒7和芯轴1的通道3形成一个密闭空腔。
本发明电机转子的工作过程如下：电机工作时，转子高速旋转，磁场作用下在涡流套2和护套筒7内产生涡流（主热量），涡流套2外产生风摩热量，进而使得转子涡流套2和护套筒7温度升高。护套筒7热量通过永磁体5传递到芯轴1。转子温度升高使得灌装在涡流套2、护套筒7和芯轴1的通道3形成的密闭空腔中的工质开始气化，迅速将温度从高温部位传导至低温部位(轴两端)，遇冷后工质由气态变成液态，液态沿着涡流套2，护套筒7及芯轴1内壁面流到发热高温部位，工质沿着壁面返回的过程是对转子热源冷却的过程，工质在转子的涡流套2、护套筒7及芯轴1的通道3形成的密闭空腔内进行气化-液化，热传导最终达到降低转子（永磁体）温度的目的。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下还可以作出若干改进，这些改进也应视为本发明的保护范围。

Claims (2)

1.一种电机转子，其包括芯轴（1）、位于芯轴（1）局部外围的涡流套（2）及安装于芯轴（1）上的永磁体（5），其特征在于：所述芯轴（1）内部设置有通道（3），所述通道（3）中设置有气液芯（4），所述通道（3）与所述涡流套（2）相通，所述永磁体（5）沿着芯轴（1）长度延伸方向的末端分别设有一隔磁环（6），所述永磁体（5）和隔磁环（6）的外围套设有一护套筒（7），所述涡流套（2）位于所述护套筒（7）的外侧且与所述护套筒（7）之间留有间隙，所述涡流套（2）、护套筒（7）和芯轴（1）的通道（3）形成一个密闭空腔。
2.如权利要求1所述的一种电机转子，其特征在于：所述通道（3）的长度延伸方向与所述芯轴（1）的长度延伸方向相一致。
CN201310391778.5A 2013-09-02 2013-09-02 一种电机转子 Active CN103441595B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310391778.5A CN103441595B (zh) 2013-09-02 2013-09-02 一种电机转子

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310391778.5A CN103441595B (zh) 2013-09-02 2013-09-02 一种电机转子

Publications (2)

Publication Number Publication Date
CN103441595A true CN103441595A (zh) 2013-12-11
CN103441595B CN103441595B (zh) 2015-12-02

Family

ID=49695277

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310391778.5A Active CN103441595B (zh) 2013-09-02 2013-09-02 一种电机转子

Country Status (1)

Country Link
CN (1) CN103441595B (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105356667A (zh) * 2015-12-09 2016-02-24 南京磁谷科技有限公司 磁悬浮风机中隔离转子的内冷却结构
CN108757735A (zh) * 2018-08-30 2018-11-06 南京磁谷科技有限公司 一种磁悬浮电机转子的复合型轴套结构

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57186950A (en) * 1981-05-08 1982-11-17 Hitachi Ltd Electric rotary machine
CN1398452A (zh) * 2000-12-11 2003-02-19 三菱重工业株式会社 发电机的冷却结构
CN2759049Y (zh) * 2004-12-21 2006-02-15 温州市工科所磁传动设备厂 高速磁力传动装置
CN102598486A (zh) * 2009-10-28 2012-07-18 西门子公司 电机

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57186950A (en) * 1981-05-08 1982-11-17 Hitachi Ltd Electric rotary machine
CN1398452A (zh) * 2000-12-11 2003-02-19 三菱重工业株式会社 发电机的冷却结构
CN2759049Y (zh) * 2004-12-21 2006-02-15 温州市工科所磁传动设备厂 高速磁力传动装置
CN102598486A (zh) * 2009-10-28 2012-07-18 西门子公司 电机

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105356667A (zh) * 2015-12-09 2016-02-24 南京磁谷科技有限公司 磁悬浮风机中隔离转子的内冷却结构
CN105356667B (zh) * 2015-12-09 2018-09-25 南京磁谷科技有限公司 磁悬浮风机中隔离转子的内冷却结构
CN108757735A (zh) * 2018-08-30 2018-11-06 南京磁谷科技有限公司 一种磁悬浮电机转子的复合型轴套结构
WO2020042998A3 (zh) * 2018-08-30 2020-05-14 南京磁谷科技有限公司 一种磁悬浮电机转子的复合型轴套结构

Also Published As

Publication number Publication date
CN103441595B (zh) 2015-12-02

Similar Documents

Publication Publication Date Title
CN203481950U (zh) 一种电机转子
CN103812247B (zh) 具有双层护套结构的高速永磁电机转子
CN103683778A (zh) 背绕式水内冷定子绕组、空实心隔热转子护套的永磁电机
CN103441595A (zh) 一种电机转子
CN103441594A (zh) 一种电机转子
CN203481953U (zh) 一种电机转子
CN104279743A (zh) 一种永磁热水器
CN106685180B (zh) 一种以高速液态金属为发电工质的脉冲磁流体发电机
CN203071777U (zh) 无铁芯永磁电机
CN204761178U (zh) 一种混合冷却的直驱风力发电机
CN204291433U (zh) 加热金属件的电感应加热器
CN203743355U (zh) 一种滚珠丝杠副
CN203225907U (zh) 电磁感应加热系统
CN202737724U (zh) 一种磁性联轴器
CN105072728B (zh) 一种磁屏蔽管式电磁感应加热装置
CN201726228U (zh) 电动车驱动电机的冷却结构
CN204761273U (zh) 新型高温超导电机
CN102943158A (zh) 一种电磁式磁场与加热同步双隧道节能退火炉
CN203667894U (zh) 一种具有双冷却功能的电磁涡流刹车主体
CN207766582U (zh) 一种电磁加热芯装置
CN203708030U (zh) 一种电机转子铸铝装置
CN204887509U (zh) 一种磁屏蔽管式电磁感应加热装置
CN202334970U (zh) 磁铝感应加热装置
CN206574563U (zh) 一种超导磁滚筒导冷装置
CN205610365U (zh) 一种液体冷却电机定子

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: Motor rotor mounting and positioning structure

Effective date of registration: 20160912

Granted publication date: 20151202

Pledgee: Bank of Beijing, Limited by Share Ltd, Nanjing branch

Pledgor: Nanjing CIGU Limited Corporation

Registration number: 2016320000014

PLDC Enforcement, change and cancellation of contracts on pledge of patent right or utility model
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20170926

Granted publication date: 20151202

Pledgee: Bank of Beijing, Limited by Share Ltd, Nanjing branch

Pledgor: Nanjing CIGU Limited Corporation

Registration number: 2016320000014

PC01 Cancellation of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: Motor rotor mounting and positioning structure

Effective date of registration: 20171019

Granted publication date: 20151202

Pledgee: Bank of Beijing, Limited by Share Ltd, Nanjing branch

Pledgor: Nanjing CIGU Limited Corporation

Registration number: 2017320000042

PE01 Entry into force of the registration of the contract for pledge of patent right
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20180302

Granted publication date: 20151202

Pledgee: Bank of Beijing, Limited by Share Ltd, Nanjing branch

Pledgor: Nanjing CIGU Limited Corporation

Registration number: 2017320000042

PC01 Cancellation of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: Motor rotor mounting and positioning structure

Effective date of registration: 20180322

Granted publication date: 20151202

Pledgee: Bank of Beijing, Limited by Share Ltd, Nanjing branch

Pledgor: Nanjing CIGU Limited Corporation

Registration number: 2018320000031

PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20190424

Granted publication date: 20151202

Pledgee: Bank of Beijing, Limited by Share Ltd, Nanjing branch

Pledgor: Nanjing CIGU Limited Corporation

Registration number: 2018320000031

PC01 Cancellation of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: Motor rotor mounting and positioning structure

Effective date of registration: 20190521

Granted publication date: 20151202

Pledgee: Bank of Beijing, Limited by Share Ltd, Nanjing branch

Pledgor: Nanjing CIGU Limited Corporation

Registration number: 2019320000238

PE01 Entry into force of the registration of the contract for pledge of patent right
CP03 Change of name, title or address

Address after: No. 99, Jinxin Middle Road, Jiangning District, Nanjing City, Jiangsu Province

Patentee after: Nanjing Cigu Technology Co., Ltd

Address before: Nine No. 211102 Bamboo Road, Jiangning Development Zone, Nanjing, Jiangsu, 100

Patentee before: NANJING CIGU LIMITED Corp.

CP03 Change of name, title or address
PC01 Cancellation of the registration of the contract for pledge of patent right
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20200615

Granted publication date: 20151202

Pledgee: Bank of Beijing Limited by Share Ltd. Nanjing branch

Pledgor: NANJING CIGU Ltd.,Corp.

Registration number: 2019320000238