CN201160240Y - A motor rotor structure - Google Patents

A motor rotor structure Download PDF

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Publication number
CN201160240Y
CN201160240Y CNU2008200440073U CN200820044007U CN201160240Y CN 201160240 Y CN201160240 Y CN 201160240Y CN U2008200440073 U CNU2008200440073 U CN U2008200440073U CN 200820044007 U CN200820044007 U CN 200820044007U CN 201160240 Y CN201160240 Y CN 201160240Y
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CN
China
Prior art keywords
ring body
magnetic ring
rotor structure
inner edge
arc
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.)
Expired - Lifetime
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CNU2008200440073U
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Chinese (zh)
Inventor
鲁楚平
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.)
Zhongshan Broad Ocean Motor Co Ltd
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Zhongshan Broad Ocean Motor Co Ltd
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Application filed by Zhongshan Broad Ocean Motor Co Ltd filed Critical Zhongshan Broad Ocean Motor Co Ltd
Priority to CNU2008200440073U priority Critical patent/CN201160240Y/en
Priority to KR1020080118639A priority patent/KR101002961B1/en
Application granted granted Critical
Publication of CN201160240Y publication Critical patent/CN201160240Y/en
Anticipated expiration legal-status Critical
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22Rotating parts of the magnetic circuit
    • H02K1/27Rotor cores with permanent magnets
    • H02K1/2706Inner rotors
    • H02K1/272Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/2726Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of a single magnet or two or more axially juxtaposed single magnets
    • H02K1/2733Annular magnets
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22Rotating parts of the magnetic circuit
    • H02K1/28Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K15/00Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/03Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

The rotor structure of the motor comprises a rotating shaft (7) and a magnetic ring body, wherein the magnetic ring body is a hollow cylinder structure surrounded by an outer edge (1) and an inner edge (2), the outer edge (1) of the magnetic ring body is provided with a plurality of bulged outer bosses (3) or the outer edge (1) of the magnetic ring body is provided with a plurality of sunken grooves (4). The utility model discloses the wall thickness that makes the magnetic ring body also follows the regular size change of sine wave, suits with the magnetic field change of rotor outside, reaches the effect that operates steadily, the noise is little, operating efficiency is high.

Description

一种电机的转子结构 A motor rotor structure

技术领域: Technical field:

本实用新型涉及一种电机的转子结构。The utility model relates to a rotor structure of a motor.

背景技术: Background technique:

传统塑封直流无刷电机的转子包括转轴和磁环体,大部分转轴和磁环体之间通过转子铁芯连接。如图1、图2所示,磁环体是由外缘M和内缘N所围成的中空柱体结构,外缘M和内缘N都是圆形,所以磁环体的壁厚是处处相等的。这种结构存在如下缺点:因为转子外面的磁场变化是按正弦波的规律变化,这种等厚的磁环体不适应外部磁场环境变化,产生运行不平稳、噪音大、效率低的问题。The rotor of a traditional plastic-encapsulated DC brushless motor includes a rotating shaft and a magnetic ring, and most of the rotating shaft and the magnetic ring are connected by a rotor core. As shown in Figure 1 and Figure 2, the magnetic ring body is a hollow cylindrical structure surrounded by the outer edge M and the inner edge N. The outer edge M and the inner edge N are both circular, so the wall thickness of the magnetic ring body is Everywhere is equal. This structure has the following disadvantages: because the magnetic field outside the rotor changes according to the law of sine waves, this kind of magnetic ring body of equal thickness cannot adapt to the change of the external magnetic field environment, resulting in problems such as unstable operation, high noise and low efficiency.

发明内容: Invention content:

本实用新型的目的是提供一种运行平稳、噪音小、运行效率高的电机的转子结构。The purpose of the utility model is to provide a rotor structure of a motor with stable operation, low noise and high operation efficiency.

本实用新型的技术方案是这样实现的:The technical scheme of the utility model is achieved in that:

一种电机的转子结构,包括转轴和磁环体,磁环体是由外缘和内缘围成的空心柱体结构,所述的磁环体的外缘上设置有多个鼓起的外凸台或者所述的磁环体的外缘上设置有多个凹陷的凹槽。本实用新型使磁环体的壁厚也随正弦波的规律大小变化,与转子外面的磁场变化相适应,达到运行平稳、噪音小、效率高的效果。A rotor structure of a motor, including a rotating shaft and a magnetic ring body. The magnetic ring body is a hollow cylindrical structure surrounded by an outer edge and an inner edge. The outer edge of the magnetic ring body is provided with a plurality of bulging outer rings. A plurality of concave grooves are arranged on the boss or the outer edge of the magnetic ring body. The utility model makes the wall thickness of the magnetic ring body also change with the regular size of the sine wave, adapts to the change of the magnetic field outside the rotor, and achieves the effects of stable operation, low noise and high efficiency.

上述所述的外凸台是弧形,所述的弧形外凸台是中间高,两侧低。符合正弦波的规律变化,且加工容易。弧形可以是指圆弧形或者椭圆弧形。The above-mentioned outer boss is arc-shaped, and the arc-shaped outer boss is high in the middle and low on both sides. It conforms to the regular change of sine wave and is easy to process. The arc may refer to a circular arc or an elliptical arc.

上述所述的外凸台是沿圆周均匀分布,外凸台的数目至少是2个。加工容易,更加符合正弦波的规律变化。所述的内缘是圆形,磁环体是通过转子铁芯与转轴安装连接起来。The above-mentioned outer bosses are evenly distributed along the circumference, and the number of outer bosses is at least two. It is easy to process and more in line with the regular changes of sine waves. The inner edge is circular, and the magnetic ring body is installed and connected with the rotating shaft through the rotor iron core.

上述所述的凹槽是弧形,所述的弧形凹槽是中间低,两侧高,符合正弦波的规律变化,且加工容易。弧形可以是指圆弧形或者椭圆弧形。The above-mentioned groove is arc-shaped, and the arc-shaped groove is low in the middle and high on both sides, conforms to the regular change of sine wave, and is easy to process. The arc may refer to a circular arc or an elliptical arc.

上述所述的凹槽是沿圆周均匀分布,凹槽的数目至少是2个。结构简单,制造方便。所述的内缘是圆形,磁环体是与转轴注塑安装连接起来。The above-mentioned grooves are evenly distributed along the circumference, and the number of grooves is at least two. The structure is simple and the manufacture is convenient. The inner edge is circular, and the magnetic ring body is connected with the rotating shaft by injection molding.

上述内缘设置有多个鼓起的内凸台。结构简单,方便连接装配。The inner edge is provided with a plurality of bulging inner bosses. Simple structure, convenient connection and assembly.

上述所述的内缘上的内凸台与外缘上凹槽或者外凸台的径向位置相对应。The radial position of the above-mentioned inner boss on the inner edge corresponds to the radial position of the groove or the outer boss on the outer edge.

附图说明: Description of drawings:

下面结合附图和实施例对本实用新型进一步说明。Below in conjunction with accompanying drawing and embodiment the utility model is further described.

图1是传统转子上磁环体的结构图;Fig. 1 is a structural diagram of a magnetic ring body on a conventional rotor;

图2是图1的A-A剖视图;Fig. 2 is A-A sectional view of Fig. 1;

图3是本实用新型的磁环体第一种实施结构的示意图;Fig. 3 is a schematic diagram of the first implementation structure of the magnetic ring body of the present utility model;

图4是本实用新型的磁环体第一种实施结构的立体图;Fig. 4 is a perspective view of the first implementation structure of the magnetic ring body of the present invention;

图5是本实用新型第二种实施结构示意图;Fig. 5 is a schematic diagram of the second embodiment of the utility model;

图6是本实用新型第二个实施结构的立体图;Fig. 6 is a perspective view of a second implementation structure of the present utility model;

图7是本实用新型第三个实施结构的示意图;Fig. 7 is the schematic diagram of the third implementation structure of the utility model;

图8是本实用新型第三个实施结构的立体图;Fig. 8 is a perspective view of a third implementation structure of the present utility model;

图9本实用新型第四个实施结构的示意图;Fig. 9 is a schematic diagram of the fourth implementation structure of the utility model;

图10是本实用新型第四个实施结构的立体图;Fig. 10 is a perspective view of a fourth implementation structure of the present utility model;

图11本实用新型第五个实施结构的示意图;Fig. 11 is a schematic diagram of the fifth implementation structure of the utility model;

图12是本实用新型第五个实施结构的立体图;Fig. 12 is a perspective view of a fifth implementation structure of the present utility model;

图13本实用新型第六个实施结构的示意图;Fig. 13 is a schematic diagram of the sixth implementation structure of the utility model;

图14本实用新型第七个实施结构的示意图;Fig. 14 is a schematic diagram of the seventh implementation structure of the utility model;

图15是本实用新型第八个实施结构的示意图;Fig. 15 is a schematic diagram of the eighth implementation structure of the utility model;

图16是本实用新型第八个实施结构的立体图Fig. 16 is a perspective view of the eighth implementation structure of the utility model

具体实施方式: Detailed ways:

实施例1:如图3、图4所示,本实用新型的实施例1中包括转轴7和磁环体,磁环体是由外缘1和内缘2围成的空心柱体结构,所述的磁环体的外缘1上设置有多个鼓起的外凸台3,所述的外凸台3是弧形,所述的弧形外凸台3是中间高,两侧低。所述的外凸台3是沿圆周均匀分布,外凸台3的数目至少是2个。所述的内缘2是圆形,磁环体是通过转子铁芯5与转轴7安装连接起来。Embodiment 1: as shown in Fig. 3, Fig. 4, comprise rotating shaft 7 and magnetic ring body in the embodiment 1 of the present utility model, magnetic ring body is the hollow cylinder structure that is surrounded by outer edge 1 and inner edge 2, so The outer edge 1 of the magnetic ring body is provided with a plurality of bulging outer bosses 3, the outer bosses 3 are arc-shaped, and the arc-shaped outer bosses 3 are high in the middle and low on both sides. The outer bosses 3 are evenly distributed along the circumference, and the number of outer bosses 3 is at least two. The inner edge 2 is circular, and the magnetic ring body is installed and connected with the rotating shaft 7 through the rotor iron core 5 .

实施例2:如图5、图6所示,本实用新型的实施例2中包括转轴7和磁环体,磁环体是由外缘1和内缘2围成的空心柱体结构,所述的磁环体的外缘1上设置有多个凹陷的凹槽4,所述的凹槽4是弧形,所述的弧形凹槽4是中间低,两侧高。所述的凹槽4是沿圆周均匀分布,凹槽4的数目至少是2个。所述的内缘2是圆形,磁环体是与转轴7注塑安装连接起来。即利用磁环体与转轴7之间的空隙进行注塑。Embodiment 2: as shown in Fig. 5, Fig. 6, comprise rotating shaft 7 and magnetic ring body in the embodiment 2 of the present utility model, magnetic ring body is the hollow cylinder structure that is surrounded by outer edge 1 and inner edge 2, so The outer edge 1 of the magnetic ring body is provided with a plurality of concave grooves 4, the grooves 4 are arc-shaped, and the arc-shaped grooves 4 are low in the middle and high on both sides. The grooves 4 are evenly distributed along the circumference, and the number of the grooves 4 is at least two. The inner edge 2 is circular, and the magnetic ring body is connected with the rotating shaft 7 by injection molding. That is, injection molding is performed using the gap between the magnetic ring body and the rotating shaft 7 .

实施例3:如图7和图8所示,与实施例2相比,内缘2设置有多个鼓起的内凸台6。内缘2上的内凸台6与外缘1上凹槽4的径向位置相对应,图中内凸台6与外缘1上凹槽4的在径向是对齐的。磁环体是与转轴7注塑安装成一体连接起来。Embodiment 3: As shown in FIG. 7 and FIG. 8 , compared with Embodiment 2, the inner edge 2 is provided with a plurality of bulging inner bosses 6 . The inner boss 6 on the inner edge 2 corresponds to the radial position of the groove 4 on the outer edge 1. In the figure, the inner boss 6 is aligned with the groove 4 on the outer edge 1 in the radial direction. The magnetic ring body is integrally connected with the rotating shaft 7 by injection molding.

实施例4:如图9、图10所示,与实施例1相比,内缘2设置有多个鼓起的内凸台6,内缘2上的内凸台6与外缘1上外凸台3径向位置相对应,图中内凸台6与外凸台3是错开的,内凸台6跨越相邻两外凸台3。Embodiment 4: As shown in Figure 9 and Figure 10, compared with Embodiment 1, the inner edge 2 is provided with a plurality of bulging inner bosses 6, and the inner bosses 6 on the inner edge 2 are connected with the upper outer edge of the outer edge 1. The radial positions of the bosses 3 are corresponding. In the figure, the inner bosses 6 and the outer bosses 3 are staggered, and the inner bosses 6 straddle two adjacent outer bosses 3 .

实施例5:如图11、图12所示,与实施例1相比,本实用新型的实施例5中外缘1是圆形,内缘2设置有多个鼓起的内凸台6。内凸台6是弧形。Embodiment 5: As shown in Figure 11 and Figure 12, compared with Embodiment 1, the outer edge 1 of Embodiment 5 of the present utility model is circular, and the inner edge 2 is provided with a plurality of bulging inner bosses 6 . The inner boss 6 is arc-shaped.

实施例6:如图13所示,与实施例5相比,本实用新型的实施例5中外缘1是圆形,内缘2设置有多个鼓起的内凸台6。内凸台6是梯形。Embodiment 6: As shown in FIG. 13 , compared with Embodiment 5, in Embodiment 5 of the present utility model, the outer edge 1 is circular, and the inner edge 2 is provided with a plurality of bulging inner bosses 6 . The inner boss 6 is trapezoidal.

实施例7:如图14所示,与实施例6相比,本实用新型的实施例5中外缘1是圆形,内缘2设置有多个鼓起的内凸台6。内凸台6是三角形。Embodiment 7: As shown in FIG. 14 , compared with Embodiment 6, in Embodiment 5 of the present utility model, the outer edge 1 is circular, and the inner edge 2 is provided with a plurality of bulging inner bosses 6 . The inner boss 6 is triangular.

实施例8:如图15、图16所示,与实施例5相比,本实用新型的实施例8中外缘1是圆形,内缘2设置有多个鼓起的梯形内凸台6。内缘2是齿轮状。Embodiment 8: As shown in Figure 15 and Figure 16, compared with Embodiment 5, the outer edge 1 of Embodiment 8 of the present utility model is circular, and the inner edge 2 is provided with a plurality of bulging trapezoidal inner bosses 6 . The inner edge 2 is gear-shaped.

Claims (9)

1, a kind of rotor structure of motor, comprise rotating shaft (7) and magnetic ring body, magnetic ring body is the hollow cylinder structure that is surrounded by outer rim (1) and inner edge (2), it is characterized in that: the outer rim (1) that the outer rim of described magnetic ring body (1) is provided with a plurality of outer lug boss of heaving (3) or described magnetic ring body is provided with the groove (4) of a plurality of depressions.
2, the rotor structure of a kind of motor according to claim 1 is characterized in that: described outer lug boss (3) is an arc, and described arc outer lug boss (3) is high in the middle of being, both sides are low.
3, the rotor structure of a kind of motor according to claim 1 and 2 is characterized in that: described outer lug boss (3) is evenly to distribute along circumference, and the number of outer lug boss (3) is 2 at least.
4, the rotor structure of a kind of motor according to claim 1 and 2 is characterized in that: described inner edge (2) is circular, and magnetic ring body is to install with rotating shaft (7) by rotor core (5) to couple together.
5, the rotor structure of a kind of motor according to claim 1 is characterized in that: described groove (4) is an arc, and described arc groove (4) is low in the middle of being, the both sides height.
6, a kind of rotor structure of motor according to claim 1 or 5, it is characterized in that: described groove (4) is evenly to distribute along circumference, the number of groove (4) is 2 at least.
7, a kind of rotor structure of motor according to claim 1 or 5 is characterized in that: described inner edge (2) is circular, and magnetic ring body is to install with rotating shaft (7) injection moulding to couple together.
8, according to the rotor structure of claim 1,2 or 5 described a kind of motors, it is characterized in that: inner edge (2) is provided with a plurality of inner convex platforms of heaving (6).
9, the rotor structure of a kind of motor according to claim 8 is characterized in that: the inner convex platform (6) on the inner edge (2) is corresponding with the radial position of outer rim (1) upper groove (4) or outer lug boss (3).
CNU2008200440073U 2008-02-05 2008-02-05 A motor rotor structure Expired - Lifetime CN201160240Y (en)

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CNU2008200440073U CN201160240Y (en) 2008-02-05 2008-02-05 A motor rotor structure
KR1020080118639A KR101002961B1 (en) 2008-02-05 2008-11-27 Rotor of electric motor

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CNU2008200440073U CN201160240Y (en) 2008-02-05 2008-02-05 A motor rotor structure

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Cited By (4)

* Cited by examiner, † Cited by third party
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CN103794329A (en) * 2014-02-27 2014-05-14 张家港倍恩特磁塑科技有限公司 Radial magnetization plastic magnet
CN103956839A (en) * 2014-03-28 2014-07-30 湖北立锐机电有限公司 Magnet ring structure and permanent magnetic synchronous motor using same
CN107431420A (en) * 2015-02-26 2017-12-01 美国轮轴制造公司 Brshless DC motor
CN114245960A (en) * 2019-08-12 2022-03-25 博马泰克管理股份公司 Hollow permanent magnet cylinder with at least one groove or gap to reduce eddy currents

Families Citing this family (1)

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RU169538U1 (en) * 2015-12-08 2017-03-22 Федеральное государственное бюджетное учреждение науки Ордена Трудового Красного Знамени Институт химии силикатов им. И.В. Гребенщикова Российской академии наук (ИХС РАН) Permanent Magnet Synchronous Machine Rotor

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JP3586804B2 (en) * 1998-02-17 2004-11-10 三菱電機株式会社 Plastic magnet rotor
JP2003309941A (en) 2002-04-15 2003-10-31 Toyoda Mach Works Ltd Rotor of motor
JP4797431B2 (en) * 2005-05-02 2011-10-19 三菱電機株式会社 Permanent magnet type motor

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103794329A (en) * 2014-02-27 2014-05-14 张家港倍恩特磁塑科技有限公司 Radial magnetization plastic magnet
CN103956839A (en) * 2014-03-28 2014-07-30 湖北立锐机电有限公司 Magnet ring structure and permanent magnetic synchronous motor using same
CN103956839B (en) * 2014-03-28 2016-04-13 湖北立锐机电有限公司 Magnet ring structure and use its permagnetic synchronous motor
CN107431420A (en) * 2015-02-26 2017-12-01 美国轮轴制造公司 Brshless DC motor
CN107431420B (en) * 2015-02-26 2019-12-13 美国轮轴制造公司 Brushless DC motor
US10673290B2 (en) 2015-02-26 2020-06-02 American Axle & Manufacturing, Inc. Brushless DC electric motor
TWI719013B (en) * 2015-02-26 2021-02-21 美商美國輪軸製造公司 Method for forming brushless dc electric motor and method for forming rotor
CN114245960A (en) * 2019-08-12 2022-03-25 博马泰克管理股份公司 Hollow permanent magnet cylinder with at least one groove or gap to reduce eddy currents

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KR20090086020A (en) 2009-08-10
KR101002961B1 (en) 2010-12-21

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Granted publication date: 20081203