WO2015165131A1 - 一种电机转子结构及其应用的电机 - Google Patents

一种电机转子结构及其应用的电机 Download PDF

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Publication number
WO2015165131A1
WO2015165131A1 PCT/CN2014/077348 CN2014077348W WO2015165131A1 WO 2015165131 A1 WO2015165131 A1 WO 2015165131A1 CN 2014077348 W CN2014077348 W CN 2014077348W WO 2015165131 A1 WO2015165131 A1 WO 2015165131A1
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Prior art keywords
end plate
rotor
outer end
inner end
motor
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PCT/CN2014/077348
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English (en)
French (fr)
Inventor
张敬才
杨文波
李亮亮
刘智勇
张庆华
向其相
李镇良
Original Assignee
大洋电机新动力科技有限公司
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Application filed by 大洋电机新动力科技有限公司 filed Critical 大洋电机新动力科技有限公司
Publication of WO2015165131A1 publication Critical patent/WO2015165131A1/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/04—Balancing means

Definitions

  • the utility model relates to a motor rotor structure and an electric motor thereof.
  • the existing motor rotor includes a rotating shaft 1 1 , a rotor core 12 , a plurality of permanent magnets 13 , an inner end plate 14 and an outer end plate 15 .
  • the rotor core 12 is sleeved outside the rotating shaft 11 and has a plurality of permanent magnets. 1 3 is mounted on the rotor core 12, and the inner end plate 14 is set on the rotating shaft 11 at both ends of the rotor core 12, and the outer end plate 15 is set on the outer side of the inner end plate 14, because the rotor unbalance amount of the direct drive motor Large, the existing solution is to install a weighting block 16 on the outer end face of the outer end plate 15 for calibration.
  • the motor rotor of this structure has the following problems: 1) Since the weighting block is located on the outer end surface of the outer end plate, the weighting block has a risk of falling off, and the reliability is poor; 2) or the copper end with a higher density is used.
  • the board replaces the existing aluminum end plate to rebalance, but the price of copper is higher and it is difficult to promote it.
  • the purpose of the utility model is to provide a motor rotor structure and a motor for the same, the rotor structure is simple, the balance correction is convenient, the balance column is not easy to fall off from the outer end plate, and is firm and reliable, the motor has a simple structure, and the balance adjustment of the rotor is convenient. , strong and reliable.
  • a rotor structure of a motor comprising a rotating shaft, a rotor core, a plurality of permanent magnets, an inner end plate and an outer end plate, wherein the rotor core is set outside the rotating shaft, and a plurality of permanent magnets are mounted on the rotor core at both ends of the rotor core,
  • the inner shaft plate is set on the rotating shaft, and the outer end plate is set on the outer side of the inner end plate.
  • the outer end plate is provided with a plurality of mounting holes on the outer edge of the bottom surface of the outer end plate, and a balance column is installed in the mounting hole.
  • the outer side wall surface of the outer end plate described above is provided with a plurality of grooves in the radial direction.
  • a rotor sleeve is nested outside the rotating shaft as described above, and the rotor core is sleeved outside the rotor sleeve.
  • the bottom surface of the outer end plate described above is recessed to form an annular step, and the top surface of the inner end plate is supported on the annular step.
  • the inner end plate described above is attached to the end face of the rotor core by screws, and the outer end plate is attached to the outer side of the inner end plate by screws.
  • the inner end plate and the outer end plate described above are made of aluminum and the balance column is made of copper.
  • An electric motor includes a rotor assembly, a stator assembly, a casing and an end cover.
  • the stator assembly and the casing are connected together and nested outside the rotor assembly, and the end covers are respectively installed at two ends of the casing
  • the rotor assembly includes a rotating shaft, a rotor core, a plurality of permanent magnets, an inner end plate and an outer end plate, the rotor core is set outside the rotating shaft, and a plurality of permanent magnets are mounted on the rotor core, and the inner end plates are set on both ends of the rotor core and the rotating shaft,
  • the outer end plate is provided with an outer end plate, and the two ends of the rotating shaft are respectively supported on the bearings of the two end covers, and the utility model is characterized in that: a plurality of mounting holes are formed on the outer edge of the bottom surface of the outer end plate, and a balance column is installed in the mounting hole.
  • the outer side wall surface of the outer end plate described above is provided with a plurality of grooves in the radial direction.
  • a rotor sleeve is nested outside the rotating shaft as described above, and the rotor core is sleeved outside the rotor sleeve.
  • the bottom surface of the outer end plate described above is recessed to form an annular step, and the top surface of the inner end plate is supported on the annular step.
  • the utility model has the following effects: 1) a plurality of mounting holes are formed on the outer edge of the bottom surface of the outer end plate, and a balance column is installed in the mounting hole, the structure is simple, the balance correction is convenient, and the balance column is not easy It is detached from the outer end plate and is firm and reliable. 2)
  • the outer side wall surface of the outer end plate is provided with a plurality of grooves in the radial direction, which can also balance the rotor, and is opened in the axial direction from the top surface of the outer end plate.
  • the structure of the groove, the depth of the groove of the structure is deeper, and the larger unbalance of the rotor can be corrected; 3) the bottom surface of the outer end plate is recessed to form an annular step, and the top surface of the inner end plate is supported on the annular step, and the structure is simple.
  • the installation is convenient and firm; 4)
  • the inner end plate and the outer end plate are made of aluminum, which is lower in cost, and the balance column is made of copper, which can correct the large unbalance of the rotor; 5) the motor has a simple structure.
  • the balance correction of the rotor is convenient, and the balance column is not easy to fall off from the outer end plate, and is firm and firm, and has high reliability.
  • Figure 1 is a schematic structural view of a conventional motor rotor
  • Figure 2 is a schematic structural view of the utility model
  • FIG. 3 is an exploded view of the motor of the present invention. detailed description:
  • Embodiment 1 As shown in FIG. 2, the utility model relates to a rotor structure of a motor, comprising a rotating shaft 1, a rotor core 2, a plurality of permanent magnets 3, an inner end plate 4 and an outer end plate 5, and the rotor core 1 is set in Outside the rotating shaft 1, a plurality of permanent magnets 3 are mounted on the rotor core 2.
  • the inner end plate 4 is set on the rotating shaft 1
  • the outer end plate 5 is set on the outer side of the inner end plate 4, at the outer end plate.
  • a plurality of mounting holes 51 are defined in the outer edge of the bottom surface, and a balance column 6 is mounted in the mounting hole 51.
  • a plurality of grooves 52 are formed in the radial direction on the outer wall surface of the outer end plate 5.
  • a rotor sleeve 7 is nested outside the shaft 1, and the rotor core 2 is fitted outside the rotor sleeve 7.
  • the bottom surface of the outer end plate 5 is recessed to form an annular step.
  • the top surface of the inner end plate 4 is supported on the annular step 53.
  • the inner end plate 4 is attached to the end surface of the rotor core 2 by screws 8
  • the outer end plate 5 is attached to the outer side of the inner end plate 4 by screws 8.
  • the inner end plate 4 and the outer end plate 5 are made of aluminum and the balance column 5 is made of copper.
  • the principle of the utility model is: a plurality of mounting holes 51 are formed on the outer edge of the bottom surface of the outer end plate 5, and a balance column 6 is installed in the mounting hole 51.
  • the rotor structure is simple, the balance correction is convenient, and the balance column 6 is not easy to be from the outer end.
  • the board 5 is detached and is firm and reliable.
  • Embodiment 2 As shown in FIG. 2 and FIG. 3, the utility model relates to an electric motor, comprising a rotor assembly 9, a stator assembly 10, a casing 11 and an end cover 12, and the stator assembly 10 and the casing 11 are connected and nested together. Outside the rotor assembly 9, end caps 12 are respectively mounted at the ends of the casing 11, the rotor assembly 9 including a rotating shaft 1, a rotor core 2, a plurality of permanent magnets 3, an inner end plate 4 and an outer end plate 5, rotor iron The core 2 is set outside the rotating shaft 1, and a plurality of permanent magnets 3 are mounted on the rotor core 2.
  • the rotating shaft 1 is provided with an inner end plate 4, and the outer end plate 4 is provided with an outer end plate 5
  • the two ends of the rotating shaft 1 are respectively supported on the bearings of the two end covers 12, and a plurality of mounting holes 51 are formed on the outer edge of the bottom surface of the outer end plate 5, and a balance column 6 is mounted in the mounting hole 51.
  • a plurality of grooves 52 are formed in the radial direction on the outer wall surface of the outer end plate 5.
  • a rotor sleeve 7 is nested outside the shaft 1, and the rotor core 2 is fitted outside the rotor sleeve 7.
  • the bottom surface of the outer end plate 5 is recessed in the middle to form an annular step 53, and the top surface of the inner end plate 4 is supported on the annular step 53.
  • the inner end plate 4 is attached to the end surface of the rotor core 1 by screws 8, and the outer end plate 5 is attached to the outer side of the inner end plate 4 by screws 8.
  • the inner end plate 4 and the outer end plate 5 are made of aluminum, and the balance column 5 is made of copper.
  • the principle of the utility model is that a plurality of mounting holes 51 are formed on the outer edge of the bottom surface of the outer end plate 5, and a balance column 6 is installed in the mounting hole 51.
  • the rotor structure is simple, the balance correction is convenient, and the balance column 6 is not easy to be from the outer end.
  • the board 5 is detached and is firm and reliable.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

一种电机转子结构，包括转轴（1）、转子铁芯（2）、若干永磁体（3）、内端板（4）和外端板（5），转子铁芯（4）套装在转轴（1）外面，若干永磁体（3）安装在转子铁芯（2）上，在转子铁芯（2）两端、转轴（1）上套装有内端板（4），在内端板（4）外侧套装有外端板（5），其特征在于，在外端板（5）底面的外侧边缘上开设有若干安装孔（51），在安装孔（51）里面安装有平衡柱（6）。该转子结构的结构简单，平衡校正方便，平衡柱不易从外端板上脱落，牢固可靠。还公开了一种应用该电机转子结构的电机。

Description

一种电机转子结构及其应用的电机 技术领域：
本实用新型涉及一种电机转子结构及其应用的电机。
背景技术：
如图 1所示， 现有的电机转子包括转轴 1 1、 转子铁芯 12、 若干永磁体 1 3、 内端板 14和外端板 15， 转子铁芯 12套装在转轴 11外面， 若干永磁体 1 3安装 在转子铁芯 12上， 在转子铁芯 12两端、 转轴 1 1上套装有内端板 14， 在内端板 14外侧套装有外端板 15， 由于直驱电机的转子不平衡量很大， 现有的解决办法 就是在外端板 15的外侧端面上安装加重块 1 6用于校平衡。 但是这种结构的电 机转子存在如下几个问题： 1 ) 由于加重块位于外端板的外侧端面上， 加重块存 在脱落的风险， 可靠性较差； 2 )或者釆用密度更大的铜端板代替现有的铝端板 去重校平衡， 但是铜的价格更高， 难以推广使用。
发明内容：
本实用新型的目的是提供一种电机转子结构及其应用的电机， 该转子结构 简单， 平衡校正方便， 平衡柱不易从外端板上脱落， 牢固可靠， 该电机结构简 单， 转子的平衡校正方便， 结实牢固， 可靠性高。
本实用新型的目的是通过下述技术方案予以实现的。
一种电机转子结构， 包括转轴、 转子铁芯、 若干永磁体、 内端板和外端板， 转子铁芯套装在转轴外面， 若干永磁体安装在转子铁芯上， 在转子铁芯两端、 转轴上套装有内端板， 在内端板外侧套装有外端板， 其特征在于： 在外端板底 面的外侧边缘上开设有若干安装孔， 在安装孔里面安装有平衡柱。
上述所述的外端板的外侧壁面沿径向上开设有若干凹槽。
上述所述的转轴外面嵌套有转子套筒， 转子铁芯套装在转子套筒外面。 上述所述的外端板的底面中间凹陷形成环形台阶， 内端板的顶面支承在环 形台阶上。 上述所述的内端板通过螺钉安装在转子铁芯的端面上， 外端板通过螺钉安 装在内端板的外侧。
上述所述的内端板和外端板是釆用铝制造的， 平衡柱是釆用铜制造的。
一种电机， 包括转子组件、 定子组件、 机壳和端盖， 定子组件和机壳连接 在一起嵌套在转子组件外面， 端盖分别安装在机壳两端， 所述的转子组件包括 转轴、 转子铁芯、 若干永磁体、 内端板和外端板， 转子铁芯套装在转轴外面， 若干永磁体安装在转子铁芯上， 在转子铁芯两端、 转轴上套装有内端板， 在内 端板外侧套装有外端板， 转轴两端分别支承在两端盖的轴承上， 其特征在于： 在外端板底面的外侧边缘上开设有若干安装孔， 在安装孔里面安装有平衡柱。
上述所述的外端板的外侧壁面沿径向上开设有若干凹槽。
上述所述的转轴外面嵌套有转子套筒， 转子铁芯套装在转子套筒外面。
上述所述的外端板的底面中间凹陷形成环形台阶， 内端板的顶面支承在环 形台阶上。
本实用新型与现有技术相比， 具有如下效果： 1 )在外端板底面的外侧边缘 上开设有若干安装孔， 在安装孔里面安装有平衡柱， 该结构简单， 平衡校正方 便， 平衡柱不易从外端板上脱落， 牢固可靠； 2 )外端板的外侧壁面沿径向上开 设有若干凹槽， 同样可以对转子进行较平衡， 相比于传统从外端板顶面沿轴向 方向开设凹槽的结构， 本结构凹槽的深度更深， 能校正转子较大的不平衡量； 3 ) 外端板的底面中间凹陷形成环形台阶， 内端板的顶面支承在环形台阶上， 结构 简单， 安装方便、 牢固； 4 ) 内端板和外端板是釆用铝制造的， 成本更低， 平衡 柱是釆用铜制造的， 能校正转子较大的不平衡量； 5 )该电机结构简单， 转子的 平衡校正方便， 平衡柱不易从外端板上脱落， 结实牢固， 可靠性高。
附图说明：
图 1 是现有电机转子的结构示意图；
图 2 是本实用新型的结构示意图；
图 3 是本实用新型电机的分解图。 具体实施方式：
下面通过具体实施例并结合附图对本实用新型作进一步详细的描述。
实施例一： 如图 2所示， 本实用新型是一种电机转子结构， 包括转轴 1、 转 子铁芯 2、 若干永磁体 3、 内端板 4和外端板 5， 转子铁芯 1套装在转轴 1外面， 若干永磁体 3安装在转子铁芯 2上， 在转子铁芯 2两端、 转轴 1上套装有内端 板 4， 在内端板 4外侧套装有外端板 5， 在外端板 5底面的外侧边缘上开设有若 干安装孔 51， 在安装孔 51里面安装有平衡柱 6。 在外端板 5的外侧壁面沿径向 上开设有若干凹槽 52。 在转轴 1外面嵌套有转子套筒 7， 转子铁芯 2套装在转 子套筒 7外面。 外端板 5的底面中间凹陷形成环形台阶 53， 内端板 4的顶面支 承在环形台阶 53上。 内端板 4通过螺钉 8安装在转子铁芯 2的端面上， 外端板 5通过螺钉 8安装在内端板 4的外侧。 内端板 4和外端板 5是釆用铝制造的， 平 衡柱 5是釆用铜制造的。
本实用新型的原理是： 在外端板 5底面的外侧边缘上开设有若干安装孔 51， 在安装孔 51里面安装有平衡柱 6， 该转子结构简单， 平衡校正方便， 平衡柱 6不 易从外端板 5上脱落， 牢固可靠。
实施例二： 如图 2和图 3所示， 本实用新型是一种电机， 包括转子组件 9、 定子组件 10、 机壳 11和端盖 12， 定子组件 10和机壳 11连接在一起嵌套在转 子组件 9外面，端盖 12分别安装在机壳 11两端，所述的转子组件 9包括转轴 1、 转子铁芯 2、 若干永磁体 3、 内端板 4和外端板 5， 转子铁芯 2套装在转轴 1外 面， 若干永磁体 3安装在转子铁芯 2上， 在转子铁芯 2两端、 转轴 1上套装有 内端板 4， 在内端板 4外侧套装有外端板 5， 转轴 1两端分别支承在两端盖 12 的轴承上， 在外端板 5底面的外侧边缘上开设有若干安装孔 51， 在安装孔 51里 面安装有平衡柱 6。 在外端板 5的外侧壁面沿径向上开设有若干凹槽 52。 在转 轴 1外面嵌套有转子套筒 7， 转子铁芯 2套装在转子套筒 7外面。 外端板 5的底 面中间凹陷形成环形台阶 53， 内端板 4的顶面支承在环形台阶 53上。 内端板 4 通过螺钉 8安装在转子铁芯 1的端面上， 外端板 5通过螺钉 8安装在内端板 4 的外侧。 内端板 4和外端板 5是釆用铝制造的， 平衡柱 5是釆用铜制造的。 本实用新型的原理是：在外端板 5底面的外侧边缘上开设有若干安装孔 51， 在安装孔 51里面安装有平衡柱 6， 该转子结构简单， 平衡校正方便， 平衡柱 6 不易从外端板 5上脱落， 牢固可靠。
以上实施例为本发明的较佳实施方式， 但本发明的实施方式不限于此， 其 他任何未背离本发明的精神实质与原理下所作的改变、 修饰、 替代、 组合、 简 化， 均为等效的置换方式， 都包含在本发明的保护范围之内。

Claims

权利要求
1、 一种电机转子结构， 包括转轴（1)、 转子铁芯 （2)、 若干永磁体（3)、 内端板（ 4 )和外端板（ 5 )， 转子铁芯 （ 2 )套装在转轴 （ 1 )外面， 若干永磁体
( 3 )安装在转子铁芯 （ 2 )上， 在转子铁芯 （ 2 ) 两端、 转轴（ 1 )上套装有内 端板（ 4 )， 在内端板（ 4 )外侧套装有外端板（ 5 ), 其特征在于： 在外端板（ 5 ) 底面的外侧边缘上开设有若干安装孔（ 51 )， 在安装孔（ 51 )里面安装有平衡柱
( 6)。
2、 根据权利要求 1所述的一种电机转子结构， 其特征在于： 在外端板（5) 的外侧壁面沿径向上开设有若干凹槽 （52)。
3、 根据权利要求 1或 2所述的一种电机转子结构，其特征在于：在转轴（ 1 ) 外面嵌套有转子套筒 （7)， 转子铁芯 （2)套装在转子套筒 （7)外面。
4、 根据权利要求 3所述的一种电机转子结构， 其特征在于： 外端板（5) 的底面中间凹陷形成环形台阶（53)， 内端板（4) 的顶面支承在环形台阶（53) 上。
5、 根据权利要求 4所述的一种电机转子结构， 其特征在于： 内端板（4) 通过螺钉（ 8 )安装在转子铁芯 （ 2 ) 的端面上， 外端板（ 5 )通过螺钉（ 8 )安 装在内端板（4) 的外侧。
6、 根据权利要求 1或 2所述的一种电机转子结构，其特征在于： 内端板（ 4 ) 和外端板（5)是釆用铝制造的， 平衡柱 (5)是釆用铜制造的。
7、 一种应用权利要求 1至 6所述的任何一项电机转子结构的电机， 包括转 子组件（ 9 )、 定子组件（ 10 )、 机壳 （ 11 )和端盖 （ 12 )， 定子组件（ 10 )和机 壳（ 11 )连接在一起嵌套在转子组件（ 9 )外面， 端盖（ 12 )分别安装在机壳（ 11 ) 两端， 所述的转子组件（9) 包括转轴（1)、 转子铁芯 （2)、 若干永磁体（3)、 内端板（ 4 )和外端板（ 5 )， 转子铁芯 （ 2 )套装在转轴 （ 1 )外面， 若干永磁体
( 3 )安装在转子铁芯 （ 2 )上， 在转子铁芯 （ 2 ) 两端、 转轴（ 1 )上套装有内 端板（ 4 )， 在内端板（ 4 )外侧套装有外端板（ 5 ), 转轴 （ 1 ) 两端分别支承在 两端盖（12) 的轴承上， 其特征在于： 在外端板（5)底面的外侧边缘上开设有 若干安装孔（ 51 )， 在安装孔（ 51 )里面安装有平衡柱 ( 6 )。
8、 根据权利要求 7所述的一种电机， 其特征在于： 在外端板（5) 的外侧 壁面沿径向上开设有若干凹槽（52)。
9、 根据权利要求 7或 8所述的一种电机转子结构，其特征在于：在转轴（ 1 ) 外面嵌套有转子套筒 （7)， 转子铁芯 （2)套装在转子套筒 （7)外面。
10、 根据权利要求 9所述的一种电机转子结构， 其特征在于： 外端板（5) 的底面中间凹陷形成环形台阶（53)， 内端板（4) 的顶面支承在环形台阶（53) 上。
PCT/CN2014/077348 2014-04-30 2014-05-13 一种电机转子结构及其应用的电机 WO2015165131A1 (zh)

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