WO2012139501A1 - 电机转子 - Google Patents

电机转子 Download PDF

Info

Publication number
WO2012139501A1
WO2012139501A1 PCT/CN2012/073863 CN2012073863W WO2012139501A1 WO 2012139501 A1 WO2012139501 A1 WO 2012139501A1 CN 2012073863 W CN2012073863 W CN 2012073863W WO 2012139501 A1 WO2012139501 A1 WO 2012139501A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
copper
motor
end ring
conductive bar
Prior art date
Application number
PCT/CN2012/073863
Other languages
English (en)
French (fr)
Inventor
王文扬
Original Assignee
Wang Wenyang
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 Wang Wenyang filed Critical Wang Wenyang
Publication of WO2012139501A1 publication Critical patent/WO2012139501A1/zh

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K17/00—Asynchronous induction motors; Asynchronous induction generators
    • H02K17/02—Asynchronous induction motors
    • H02K17/16—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors
    • H02K17/20—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors having deep-bar rotors

Definitions

  • the invention relates to a rotor for an electric machine.
  • a motor is an electromagnetic device that converts or transmits electrical energy according to the law of electromagnetic induction, including a stator and a rotor.
  • cast copper rotors are usually used to cast copper in the guide grooves formed by the overlapping of the rotor sheets, which can reduce the current loop loss and improve the efficiency of the motor.
  • disadvantages such as poor process stability, easy occurrence of bubbles, and the like, which affect the performance of the motor and the high production cost.
  • a copper bar is disposed in a guide groove formed by laminating the rotor sheets, and an end ring is disposed at both ends of the copper bar.
  • the motor rotor disclosed in Patent No.: 200920141813.
  • a copper bar is embedded in the groove formed by the overlapping, and a copper end ring welded and fixed to the copper bar is arranged at both ends of the rotor core, and a ring is arranged on the copper end ring and the bar on the rotor core
  • the slots of the slots are one-to-one correspondingly, and the ends of the copper bars are inserted into the slots and then welded to the copper end rings.
  • This structure has the following deficiencies: First, the use of welded joints, in the welding process, the rotor needs to be heated to a certain temperature to achieve the welding process requirements, so that the copper bar and the copper end ring have a good welding force, or During the welding process, a large amount of heat is generated, which causes the rotor chip to be in an overheated state, which ultimately affects the performance of the motor. Second, different types of motor rotors have different shapes of copper bars, and the grooves on the copper end rings follow the copper. The shape of the bar changes and the process is complicated. The third is that the welding uses manual work, the process is complicated, and the work efficiency is low. Fourth, the copper end ring is used on the high-power motor, and the production cost is high.
  • the object of the present invention is to provide a simple production process, low production cost, and improved motor efficiency.
  • the present invention is implemented as follows:
  • the rotor of the motor is provided with a rotor core in the rotor shaft casing, and an end ring is arranged at both ends of the rotor core, wherein the rotor core is formed by stacking a plurality of rotor punches, and a ring is formed on the rotor punching piece.
  • the uniform guide bar hole, the guide bar hole on the rotor punching piece forms a circle of guide bar groove on the circumferential surface of the rotor core after the rotor punching plate is superposed, and a copper guide bar is tightly arranged in the guide bar groove. Both ends of the copper ring and the two ends of the copper bar are die-cast integrated structures or riveted connections.
  • the above riveted connection is: a through hole corresponding to the shape of the copper bar is opened on the ring at both ends, and both ends of the copper bar are riveted on the through hole.
  • the above end rings are copper end rings or aluminum end rings.
  • the copper component of the above copper bar has a percentage of copper component of 30% to 99.99%.
  • the copper end percentage of the above copper end ring is 30% - 99.99%.
  • the invention is a die-casting integrated structure through the connection of the copper guide bar and the end ring, which is an instant forming, has little influence on the rotor punching piece, and the rotor does not generate overheating reaction, thereby ensuring the performance of the motor, the process is simple, and the working efficiency is high. , reduce manufacturing cost;
  • connection between the copper bar and the end ring of the invention is riveted connection, the process is simple, and the work efficiency is high;
  • the invention adopts a copper bar disposed in the rotor core, and an end ring is fixedly disposed at both ends of the rotor core to achieve energy saving effect;
  • the end ring of the invention is a copper end ring or an aluminum end ring, and the aluminum end ring can be effectively reduced on a high power motor.
  • the invention is applicable to three-phase or single-phase motors.
  • FIG. 1 is a schematic perspective view showing a state in which the guide groove of the present invention is a chute and is an open groove;
  • Figure 2 is a plan view showing the guide groove of the present invention as a chute and without an end ring;
  • FIG. 3 is a schematic perspective view showing a state in which the guide groove of the present invention is a straight groove and is a closed groove;
  • Figure 4 is a plan view showing the guide groove of the present invention in a straight groove and without an end ring;
  • Figure 5 is a partial cross-sectional view showing the end ring of the present invention and the rotor core being riveted;
  • Fig. 6 is a partial cross-sectional view showing the end ring and the rotor core of the present invention integrally formed by die casting.
  • the rotor of the motor is provided with a rotor core 20 on the rotor shaft 10, and an end ring 30 is disposed at both ends of the rotor core 20.
  • the rotor core 20 is formed by stacking a plurality of rotor punches.
  • a uniform strip of guide bars is formed in the rotor punching piece, and the guide strip holes on the rotor punching piece form a circle of guide strip grooves on the circumferential surface of the rotor core 20 after the rotor punching sheets are stacked, and are tightly packed in the guide strip grooves.
  • the copper bar 40 is disposed, and the two ends of the copper ring 30 and the copper bar 40 are die-cast integrated structures or riveted connections.
  • the integrated structure of die-casting is instantaneous molding, which has little effect on the rotor punching, and the rotor does not generate overheating reaction, which ensures the performance of the motor, improves production efficiency and reduces production cost.
  • the above riveted connection is: a through hole corresponding to the shape of the copper bar 40 is opened on the end ring 30, and both ends of the copper bar 40 are riveted on the through hole.
  • the above end ring 30 is a copper end ring or an aluminum end ring, the aluminum end ring and the copper end ring can be applied to a small power motor, and the aluminum end ring is also suitable for a high power motor, which can have a greatly low production cost without affecting the performance of the motor. .
  • the above copper bar 40 has a copper composition percentage of 30% to 99.99%.
  • the copper end percentage of the above copper end ring is 30% - 99.99%.
  • the guide groove of the present invention may be a straight groove or a chute or an open groove or a closed groove.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Induction Machinery (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Description

电机转子 技术领域：
本发明涉及一种电机转子。
背景技术：
电机是指依据电磁感应定律实现电能的转换或传递的一种电磁装置， 包 括有定子及转子。 目前， 通常采用铸铜转子， 在转子冲片叠合形成的导槽内进 行铸铜， 可以降低电流回路损耗， 提高电机效率。 但存在着工艺稳定性差， 容 易产生气泡等现象从而影响电机性能， 生产成本高等不足之处。 为了改善此现 象， 人们采用在转子冲片叠合形成的导条槽内设置铜导条， 在铜导条两端设置 端环， 如专利号： 200920141813. 7公开的电机转子， 在转子冲片叠合形成的导 条槽内嵌插有铜导条， 在转子铁芯的两端设有与铜导条焊接固定的铜端环， 铜 端环上设有一圈与转子铁芯上的导条槽一一对应的槽， 铜导条的端部嵌插入该 槽内再与铜端环焊接。 这种结构存在以下不足之处： 一是采用焊接连接， 在焊 接过程中需要将转子加热至一定温度后才可达到焊接工艺要求， 使铜导条与铜 端环有很好的熔接力， 或在焊接过程中产生大量的热量， 导致转子冲片处于过 热状态而产生影响最终导致电机性能的下降； 二是不同型号的电机转子有不同 形状的铜导条， 铜端环上的槽随着铜导条形状的改变而改变， 工艺复杂； 三是 焊接采用人工作业， 工艺复杂， 工作效率低； 四是采用在大功率电机上使用铜 端环， 生产成本高。
发明内容：
本发明的目的是提供一种生产工艺简单、 生产成本低、 可提高电机效率的 说 明 书
电机转子。
本发明是这样实现的：
电机转子， 在转子轴外套设有转子铁芯， 在转子铁芯的两端设置有端环， 所述的转子铁芯是由若干片转子冲片叠合而成， 在转子冲片上开设有一圈均布 的导条孔， 转子冲片上的导条孔在转子冲片叠合后形成位于转子铁芯圆周面上 的一圈导条槽， 在导条槽内紧配设置有铜导条， 所述的两端环与铜导条的两端 为压铸的一体式结构或铆接连接。
上述的铆接连接为： 在两端环上开设有与铜导条形状相应的通孔， 铜导条 的两端铆接在通孔上。
上述的两端环为铜端环或铝端环。
上述的铜导条的铜成分百分比为 30%— 99.99%。
上述的铜端环的铜成分百分比为 30%— 99.99%。
本发明相比现有技术突出的优点是：
1、 本发明通过铜导条与端环的连接为压铸的一体式结构， 为瞬间成型， 对 转子冲片的影响小， 转子不产生过热反应， 保证了电机的性能， 工艺简单， 工 作效率高， 降低生产成本；
2、 本发明的铜导条与端环的连接为铆接连接， 工艺简单， 工作效率高；
3、 本发明的端环与铜导条在电机转子高速运转过程中， 端环不会与铜导条 分离而影响电机工作；
4、 本发明采用在转子铁芯内设置有铜导条， 在转子铁芯两端固定设置有端 环， 可达到节能的效果；
5、 本发明的端环为铜端环或铝端环， 在大功率电机上使用铝端环可有效降 说 明 书
低生产成本而不影响电机性能；
6、 本发明适用于三相或单相电机。
附图说明：
图 1是本发明的导条槽为斜槽且为开口槽时的立体结构示意图；
图 2是本发明的导条槽为斜槽、 未装端环时的俯视图；
图 3是本发明的导条槽为直槽且为闭口槽时的立体结构示意图；
图 4是本发明导条槽为直槽、 未装端环时的俯视图；
图 5是本发明的端环与转子铁芯为铆接连接的局部剖示意图；
图 6是本发明的端环与转子铁芯为压铸一体成型的局部剖示意图。
具体实施方式：
下面以具体实施例对本发明作进一步描述， 参见图 1一 6:
电机转子， 在转子轴 10外套设有转子铁芯 20， 在转子铁芯 20的两端设置 有端环 30而成， 所述的转子铁芯 20是由若干片转子冲片叠合而成， 在转子冲 片上开设有一圈均布的导条孔， 转子冲片上的导条孔在转子冲片叠合后形成位 于转子铁芯 20圆周面上的一圈导条槽， 在导条槽内紧配设置有铜导条 40， 所述 的两端环 30与铜导条 40的两端为压铸的一体式结构或铆接连接。 压铸的一体 式结构为瞬间成型， 对转子冲片影响小， 转子不产生过热反应， 保证了电机的 性能， 提高了生产效率， 降低生产成本。
上述的铆接连接为： 在两端环 30上开设有与铜导条 40形状相应的通孔， 铜导条 40的两端铆接在通孔上。
上述的两端环 30为铜端环或铝端环，铝端环、铜端环可适用于小功率电机， 铝端环还适用于大功率电机， 可有大大低生产成本而不影响电机性能。 说 明 书
上述的铜导条 40的铜成分百分比为 30%— 99.99%。
上述的铜端环的铜成分百分比为 30%— 99.99%。
本发明的导条槽可为直槽或斜槽或开口槽或闭口槽。
上述实施例仅为本发明的较佳实施例之一， 并非以此限制本发明的 实施范围， 故： 凡依本发明的形状、 结构、 原理所做的等效变化， 均应 涵盖于本发明的保护范围之内。

Claims

权 利 要 求 书
1、电机转子，在转子轴外套设有转子铁芯，在转子铁芯的两端设置有端环， 所述的转子铁芯是由若干片转子冲片叠合而成， 在转子冲片上开设有一圈均布 的导条孔， 转子冲片上的导条孔在转子冲片叠合后形成位于转子铁芯圆周面上 的一圈导条槽， 在导条槽内紧配设置有铜导条， 其特征在于： 所述的两端环与 铜导条的两端为压铸的一体式结构或铆接连接。
2、 根据权利要求 1所述的电机转子， 其特征在于： 所述的铆接连接为： 在 两端环上开设有与铜导条形状相应的通孔， 铜导条的两端铆接在通孔上。
3、 根据权利要求 1所述的电机转子， 其特征在于： 所述的两端环为铜端环 或铝端环。
4、 根据权利要求 1或 2所述的电机转子， 其特征在于： 所述的铜导条的铜 成分百分比为 30%— 99.99%。
5、 根据权利要求 3所述的电机转子， 其特征在于： 所述的铜端环的铜成分 百分比为 30%— 99.99%。
PCT/CN2012/073863 2011-04-12 2012-04-12 电机转子 WO2012139501A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110092206.8 2011-04-12
CN201110092206.8A CN102157996A (zh) 2011-04-12 2011-04-12 电机转子

Publications (1)

Publication Number Publication Date
WO2012139501A1 true WO2012139501A1 (zh) 2012-10-18

Family

ID=44439244

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/073863 WO2012139501A1 (zh) 2011-04-12 2012-04-12 电机转子

Country Status (2)

Country Link
CN (1) CN102157996A (zh)
WO (1) WO2012139501A1 (zh)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102157996A (zh) * 2011-04-12 2011-08-17 王文扬 电机转子
CN102437697A (zh) * 2011-10-31 2012-05-02 南阳防爆集团股份有限公司 铸铜转子
CN102361383A (zh) * 2011-10-31 2012-02-22 南阳防爆集团股份有限公司 隔爆型超高效铸铜转子三相异步电动机
CN102361384A (zh) * 2011-10-31 2012-02-22 南阳防爆集团股份有限公司 高转矩超超高效铸铜转子三相异步电动机
CN104167843A (zh) * 2014-09-05 2014-11-26 珠海凌达压缩机有限公司 电机转子及具有其的空调器
CN105490488A (zh) * 2015-10-13 2016-04-13 常州市武进顶峰铜业有限公司 一种鼠笼式电机铸铝转子
CN107749702A (zh) * 2017-11-02 2018-03-02 新界泵业集团股份有限公司 电机铜条转子坯结构及其加工方法
CN107666224A (zh) * 2017-11-13 2018-02-06 安徽美芝精密制造有限公司 转子及具有其的电机、压缩机和制冷设备
CN109450206A (zh) * 2018-12-28 2019-03-08 重庆永发工业有限公司 一种铸铜式交流异步电机及其制造工艺
CN114825833B (zh) * 2022-06-29 2022-09-02 常州市常华电机有限公司 一种单相电容电机的转子组件、加工设备及其加工方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85201409U (zh) * 1985-04-13 1986-08-20 周宜乃 高效节能抽头调速电风扇
JP2008161024A (ja) * 2006-12-26 2008-07-10 Toyota Industries Corp 回転電機の回転子及び回転電機
CN201365176Y (zh) * 2009-02-25 2009-12-16 艾欧史密斯电气产品（苏州）有限公司 电机转子
CN101602166B (zh) * 2009-06-12 2010-10-13 无锡通伟电力设备有限公司 一种铬锆铜环的加工方法
CN101997348A (zh) * 2009-08-25 2011-03-30 上海日立电器有限公司 一种用插入式铜条替代铝排的制冷压缩机用电机转子
CN102157996A (zh) * 2011-04-12 2011-08-17 王文扬 电机转子
CN202076903U (zh) * 2011-04-12 2011-12-14 王文扬 电机转子

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1897409A (zh) * 2005-07-15 2007-01-17 乐金电子(天津)电器有限公司 电机转子
CN101557149B (zh) * 2008-04-10 2011-09-07 何君 一种高速感应电动机的转子
CN201518436U (zh) * 2009-10-28 2010-06-30 珠海格力电器股份有限公司 压缩机及该压缩机用自启动永磁同步电机转子

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85201409U (zh) * 1985-04-13 1986-08-20 周宜乃 高效节能抽头调速电风扇
JP2008161024A (ja) * 2006-12-26 2008-07-10 Toyota Industries Corp 回転電機の回転子及び回転電機
CN201365176Y (zh) * 2009-02-25 2009-12-16 艾欧史密斯电气产品（苏州）有限公司 电机转子
CN101602166B (zh) * 2009-06-12 2010-10-13 无锡通伟电力设备有限公司 一种铬锆铜环的加工方法
CN101997348A (zh) * 2009-08-25 2011-03-30 上海日立电器有限公司 一种用插入式铜条替代铝排的制冷压缩机用电机转子
CN102157996A (zh) * 2011-04-12 2011-08-17 王文扬 电机转子
CN202076903U (zh) * 2011-04-12 2011-12-14 王文扬 电机转子

Also Published As

Publication number Publication date
CN102157996A (zh) 2011-08-17

Similar Documents

Publication Publication Date Title
WO2012139501A1 (zh) 电机转子
CN104795909B (zh) 一种空压机用高速电机电磁结构
WO2015158256A1 (zh) 一种利用取向硅钢片制作的高效率电机定子
CN102364846A (zh) 永磁无刷直流电机
CN212751926U (zh) 一种铜铝笼型电机转子
CN206820621U (zh) 一种单相罩极异步电机铁芯冲片及单相罩极异步电机
CN202076903U (zh) 电机转子
CN107968509A (zh) 具有扁线定子绕组的交流发电机
CN207588657U (zh) 一种电动机定子
CN209088666U (zh) 用于直流电机的变截面结构电枢线圈
JPWO2014185134A1 (ja) 回転電機のステータ
CN102420476A (zh) 一种大功率高速永磁发电机的转子
CN203747606U (zh) 一种新型定子结构永磁交流伺服电机
CN204597738U (zh) 轴向对磁稀土永磁发电机
CN208691093U (zh) 低速大转矩永磁直驱电机的半总成
CN208028753U (zh) 一种环形绕组双转子永磁同步电机
CN103580421A (zh) 具有风冷散热结构的永磁同步电机
CN102361384A (zh) 高转矩超超高效铸铜转子三相异步电动机
CN202334048U (zh) 一种大功率高速永磁发电机的转子
CN205004851U (zh) 交流永磁直驱力矩电机转子组件
CN114498968B (zh) 一种电机铁芯导磁冲片多方向组合叠压结构
KR100434289B1 (ko) 농형 유도전동기의 회전자
CN202679100U (zh) 一种新型高速永磁无刷直流电机转子
CN213846365U (zh) 一种新型永磁同步电机转子冲片结构
CN202737705U (zh) 磨煤机三相异步电动机转子铁芯

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12771614

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12771614

Country of ref document: EP

Kind code of ref document: A1