CN103595215A - Axial magnetic field permanent magnet brushless direct current motor - Google Patents

Axial magnetic field permanent magnet brushless direct current motor Download PDF

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CN103595215A
CN103595215A CN201310588805.8A CN201310588805A CN103595215A CN 103595215 A CN103595215 A CN 103595215A CN 201310588805 A CN201310588805 A CN 201310588805A CN 103595215 A CN103595215 A CN 103595215A
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stator
end cover
motor
permanent magnet
fixed
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杨凯
张�浩
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Huazhong University of Science and Technology
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Abstract

本发明公开了一种轴向磁场永磁无刷直流电机,包括转轴、轴承、前端盖、后端盖、机壳、转子盘、永磁体、定子、固定环、传感器磁环和控制电路板,其中定子铁心采用硅钢片和软磁复合材料组合构成,本发明的轴向磁场永磁无刷直流电机既能发挥电枢有铁心电机节省材料的优势,又能够具有铁心加工工艺简单、绕线简单、槽满率高的优点。

Figure 201310588805

The invention discloses an axial magnetic field permanent magnet brushless DC motor, which comprises a rotating shaft, a bearing, a front end cover, a rear end cover, a casing, a rotor disc, a permanent magnet, a stator, a fixed ring, a sensor magnetic ring and a control circuit board. The stator core is composed of silicon steel sheets and soft magnetic composite materials. The axial magnetic field permanent magnet brushless DC motor of the present invention can not only take advantage of the material-saving advantages of the armature iron core motor, but also have the advantages of simple core processing technology and simple winding. , The advantages of high slot full rate.

Figure 201310588805

Description

一种轴向磁场永磁无刷直流电机An axial field permanent magnet brushless DC motor

技术领域technical field

本发明涉及电机技术领域,具体涉及一种轴向磁场永磁无刷直流电机。The invention relates to the technical field of motors, in particular to an axial magnetic field permanent magnet brushless DC motor.

背景技术Background technique

现有的轴向磁场永磁无刷直流电机主要分为两种,分别为电枢无铁心和电枢有铁心电机。The existing axial magnetic field permanent magnet brushless DC motors are mainly divided into two types, which are armature ironless motors and armature iron core motors.

在现有技术中,实用新型专利201020696399.9公开了一种双转子盘式无刷电动机,该电机的定子为盘式的定子绕组,无铁心;配有两个转子,分别安装在轴上,第一转子位于前端盖与定子绕组之间,第二转子位于后端盖与定子绕组之间。每个转子上固定有若干对永磁极,定子绕组表面与第一、第二转子的永磁极表面之间保持均匀气隙。该电机的电枢无铁心,无齿槽效应,加工简单,轴向尺寸小,但是功率一般较小;在同等功率下,较有铁心电机而言,其径向尺寸大,永磁体用量增加。In the prior art, the utility model patent 201020696399.9 discloses a double-rotor disc-type brushless motor. The stator of the motor is a disc-type stator winding without iron core; it is equipped with two rotors, which are respectively installed on the shaft. The rotor is located between the front end cover and the stator winding, and the second rotor is located between the rear end cover and the stator winding. Several pairs of permanent magnet poles are fixed on each rotor, and a uniform air gap is maintained between the surface of the stator winding and the surfaces of the permanent magnet poles of the first and second rotors. The armature of this motor has no iron core, no cogging effect, simple processing, small axial size, but generally lower power; at the same power, compared with iron core motors, its radial size is larger and the amount of permanent magnets is increased.

实用新型专利200420079912.4公布了一种低压大功率永磁无刷直流盘式电机,该电机的定子部件由定子铁心和Y型三相绕组线圈组成,在定子铁心的端面均匀地设有若干条用于镶嵌绕组线圈的端面径向槽,三相绕组线圈按Y型的分布原理相互绝缘地镶嵌在径向槽内。有铁心电机由于减小了有效气隙,可以节省材料,但是定子铁心为硅钢片经过冲卷工艺制作而成,其加工较复杂,加工效率也比较低,并且绕线比较困难,槽满率低。Utility model patent 200420079912.4 discloses a low-voltage high-power permanent magnet brushless DC disc motor. The stator part of the motor is composed of a stator core and a Y-shaped three-phase winding coil. The radial grooves on the end faces of the inlaid winding coils, and the three-phase winding coils are inlaid in the radial grooves insulated from each other according to the Y-shaped distribution principle. The iron core motor can save material because the effective air gap is reduced, but the stator core is made of silicon steel sheet through punching and rolling process, the processing is more complicated, the processing efficiency is relatively low, and the winding is more difficult, and the slot filling rate is low. .

发明内容Contents of the invention

本发明的目的在于克服现有技术的不足,提供一种既能发挥电枢有铁心电机节省材料的优势,又能够具有铁心加工工艺简单、绕线简单、槽满率高的优点的一种轴向磁场永磁无刷直流电机。The purpose of the present invention is to overcome the deficiencies of the prior art and provide a shaft that can not only take advantage of the material-saving advantages of the armature iron core motor, but also have the advantages of simple core processing technology, simple winding, and high slot fill rate. Magnetic field permanent magnet brushless DC motor.

为实现上述目的,本发明采用的技术方案如下:To achieve the above object, the technical scheme adopted in the present invention is as follows:

一种轴向磁场永磁无刷直流电机,包括转轴、轴承、前端盖、后端盖、机壳、转子盘、永磁体、定子、固定环、传感器磁环和控制电路板,所述永磁体粘结在转子盘上,构成主磁极,所述转子盘固定在所述转轴上,所述定子固定在固定环上,固定环固定在机壳上,前端盖、后端盖和机壳构成电机的外壳,转轴的一端通过轴承安装在前端盖上,转轴的另一端通过轴承安装在后端盖上;控制电路板固定在后端盖上,所述传感器磁环设置在固定环和控制电路板之间并固定在所述转轴上。An axial magnetic field permanent magnet brushless DC motor, including a rotating shaft, a bearing, a front end cover, a rear end cover, a casing, a rotor disk, a permanent magnet, a stator, a fixed ring, a sensor magnetic ring and a control circuit board, the permanent magnet Bonded on the rotor disk to form the main magnetic pole, the rotor disk is fixed on the shaft, the stator is fixed on the fixed ring, the fixed ring is fixed on the casing, the front end cover, the rear end cover and the casing constitute the motor One end of the rotating shaft is installed on the front end cover through a bearing, and the other end of the rotating shaft is installed on the rear end cover through a bearing; the control circuit board is fixed on the rear end cover, and the magnetic ring of the sensor is arranged on the fixed ring and the control circuit board between and fixed on the shaft.

其中,所述定子由定子齿、定子轭部、衬套和绕组组成,所述绕组为集中绕组,直接绕在衬套上,衬套为绝缘材料并套装在所述定子齿上,定子齿插入定子轭部的槽内。Wherein, the stator is composed of stator teeth, stator yoke, bushings and windings, the windings are concentrated windings, which are directly wound on the bushings, the bushings are made of insulating material and fitted on the stator teeth, and the stator teeth are inserted into the slot in the stator yoke.

其中,所述定子齿由软磁复合材料经粉末冶金的方法加工而成,定子轭部为硅钢片。Wherein, the stator teeth are made of soft magnetic composite material through powder metallurgy, and the stator yoke is silicon steel sheet.

其中,所述传感器磁环通过与集成在控制电路板上的霍尔位置传感器的配合来检测转子的位置,控制电路板给绕组通电以实现对电机的驱动与控制。Wherein, the sensor magnetic ring detects the position of the rotor by cooperating with the Hall position sensor integrated on the control circuit board, and the control circuit board energizes the winding to realize the driving and control of the motor.

本发明所取得的有益效果如下:由于定子为有铁心结构,减小了有效气隙,可以节省永磁材料的用量;定子齿由软磁复合材料经粉末冶金的方法加工而成,加工简单同时可以节省原材料;定子铁心由定子齿和材料为硅钢片的定子轭部构成,装配工艺简单;绕组为集中绕组,直接绕在衬套上,绕线简单、槽满率高,可以提高电机的效率;控制电路板和电机集成在一起,提高了系统的紧凑性。The beneficial effects obtained by the present invention are as follows: because the stator has an iron core structure, the effective air gap is reduced, and the amount of permanent magnet materials can be saved; the stator teeth are processed by soft magnetic composite materials through powder metallurgy, and the processing is simple and at the same time Raw materials can be saved; the stator core is composed of stator teeth and a stator yoke made of silicon steel sheets, and the assembly process is simple; the winding is a concentrated winding, directly wound on the bushing, the winding is simple, the slot fill rate is high, and the efficiency of the motor can be improved ; The control circuit board and the motor are integrated together, which improves the compactness of the system.

附图说明Description of drawings

图1为本发明轴向磁场永磁无刷直流电机结构示意图;Fig. 1 is the structure schematic diagram of axial magnetic field permanent magnet brushless DC motor of the present invention;

图2为本发明轴向磁场永磁无刷直流电机中的定子齿示意图;Fig. 2 is a schematic diagram of the stator teeth in the axial magnetic field permanent magnet brushless DC motor of the present invention;

图3为本发明轴向磁场永磁无刷直流电机中的衬套示意图;Fig. 3 is a schematic diagram of the bushing in the axial magnetic field permanent magnet brushless DC motor of the present invention;

图4为本发明轴向磁场永磁无刷直流电机中的定子示意图。Fig. 4 is a schematic diagram of the stator in the axial field permanent magnet brushless DC motor of the present invention.

图中:1-转轴、2-轴承、3-前端盖、4-转子盘、5-永磁体、6-定子、7-固定环、8-机壳、9-传感器磁环、10-控制电路板、11-后端盖、12-定子轭部、13-定子齿、14-衬套、15-线圈In the figure: 1-rotating shaft, 2-bearing, 3-front cover, 4-rotor disc, 5-permanent magnet, 6-stator, 7-fixing ring, 8-casing, 9-sensor magnetic ring, 10-control circuit Plate, 11-rear end cover, 12-stator yoke, 13-stator tooth, 14-bush, 15-coil

具体实施方式Detailed ways

为了使本发明的目的、技术方案及优点更加清楚明白,以下结合附图对本发明进行进一步详细说明。In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

如图1所示,本发明的电机结构为:电机由转轴1、轴承2、前端盖3、后端盖11、机壳8、转子盘4、永磁体5、定子6、固定环7、传感器磁环9和控制电路板10组成。永磁体5粘结在转子盘4上,构成主磁极,转子盘4固定在转轴1上,定子6固定在固定环7上,固定环7固定在机壳8上,前端盖3、后端盖11和机壳8构成电机的外壳,转轴1的一端通过轴承2安装在前端盖3上,转轴1的另一端通过轴承2安装在后端盖11上。控制电路板10固定在后端盖11上,传感器磁环9在固定环7和控制电路板10之间并固定在转轴1上。传感器磁环9通过与集成在控制电路板10上的霍尔位置传感器的配合来检测转子的位置,控制电路板10给绕组通电以实现对电机的驱动与控制。As shown in Figure 1, the motor structure of the present invention is: motor is made of rotating shaft 1, bearing 2, front end cover 3, rear end cover 11, casing 8, rotor disk 4, permanent magnet 5, stator 6, fixed ring 7, sensor The magnetic ring 9 and the control circuit board 10 are composed. The permanent magnet 5 is bonded to the rotor disk 4 to form the main magnetic pole. The rotor disk 4 is fixed on the rotating shaft 1, the stator 6 is fixed on the fixed ring 7, and the fixed ring 7 is fixed on the casing 8. The front end cover 3 and the rear end cover 11 and casing 8 constitute the shell of motor, and one end of rotating shaft 1 is installed on the front end cover 3 by bearing 2, and the other end of rotating shaft 1 is installed on the rear end cover 11 by bearing 2. The control circuit board 10 is fixed on the rear end cover 11 , and the magnetic sensor ring 9 is fixed on the rotating shaft 1 between the fixed ring 7 and the control circuit board 10 . The sensor magnetic ring 9 detects the position of the rotor by cooperating with the Hall position sensor integrated on the control circuit board 10, and the control circuit board 10 energizes the winding to realize the drive and control of the motor.

图2示出本发明轴向磁场永磁无刷直流电机中的定子齿,图3示出本发明轴向磁场永磁无刷直流电机中的衬套。如图4所示,定子6由定子齿13、定子轭部12、衬套14和绕组15组成。绕组15为集中绕组,其直接绕在衬套14上,衬套14为绝缘材料并套在定子齿13上,定子齿13插入定子轭部12的槽内。Fig. 2 shows the stator teeth in the axial field permanent magnet brushless DC motor of the present invention, and Fig. 3 shows the bushing in the axial field permanent magnet brushless direct current motor of the present invention. As shown in FIG. 4 , the stator 6 is composed of stator teeth 13 , a stator yoke 12 , a bush 14 and a winding 15 . The winding 15 is a concentrated winding, which is directly wound on the bushing 14 , the bushing 14 is made of insulating material and fitted on the stator teeth 13 , and the stator teeth 13 are inserted into the slots of the stator yoke 12 .

尽管上面结合附图对本发明的优选实例进行了描述,但是本发明并不局限于上述的具体实施方式,上述的具体实施方式仅仅是示意性的,并不是限制性的,本领域的普通技术人员在本发明的启示下,在不脱离本发明宗旨和权利要求所保护的范围情况下,还可以作出很多形式,这些均属于本发明的保护范围之内。Although the preferred examples of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are only illustrative and not restrictive. Those of ordinary skill in the art Under the enlightenment of the present invention, many forms can also be made without departing from the gist of the present invention and the protection scope of the claims, and these all belong to the protection scope of the present invention.

Claims (4)

1.一种轴向磁场永磁无刷直流电机,包括转轴、轴承、前端盖、后端盖、机壳、转子盘、永磁体、定子、固定环、传感器磁环和控制电路板,所述永磁体粘结在转子盘上,构成主磁极,所述转子盘固定在所述转轴上,所述定子固定在固定环上,所述固定环固定在机壳上,前端盖、后端盖和机壳构成电机的外壳,所述转轴的一端通过所述轴承安装在前端盖上,所述转轴的另一端通过轴承安装在后端盖上;控制电路板固定在后端盖上,所述传感器磁环设置在固定环和控制电路板之间并固定在所述转轴上。1. An axial magnetic field permanent magnet brushless DC motor, comprising a rotating shaft, a bearing, a front end cover, a rear end cover, a casing, a rotor disk, a permanent magnet, a stator, a retaining ring, a sensor magnetic ring and a control circuit board, the The permanent magnets are bonded on the rotor disc to form the main magnetic poles, the rotor disc is fixed on the rotating shaft, the stator is fixed on the fixed ring, the fixed ring is fixed on the casing, the front end cover, the rear end cover and the The casing constitutes the shell of the motor, one end of the rotating shaft is installed on the front end cover through the bearing, and the other end of the rotating shaft is installed on the rear end cover through the bearing; the control circuit board is fixed on the rear end cover, and the sensor The magnetic ring is arranged between the fixed ring and the control circuit board and fixed on the rotating shaft. 2.根据权利要求1所述的无刷直流电机,其中,所述定子由定子齿、定子轭部、衬套和绕组组成,所述绕组为集中绕组,直接绕在衬套上,衬套为绝缘材料并套装在所述定子齿上,定子齿插入定子轭部的槽内。2. The brushless DC motor according to claim 1, wherein the stator is composed of stator teeth, a stator yoke, a bushing and a winding, the winding is a concentrated winding directly wound on the bushing, and the bushing is Insulation material is also fitted over said stator teeth, which are inserted into slots in the stator yoke. 3.根据权利要求2所述的无刷直流电机,其中,所述定子齿由软磁复合材料经粉末冶金的方法加工而成,定子轭部为硅钢片。3. The brushless DC motor according to claim 2, wherein the stator teeth are made of soft magnetic composite material through powder metallurgy, and the stator yoke is silicon steel sheet. 4.根据权利要求2和3所述的无刷直流电机,其中,所述传感器磁环通过与集成在控制电路板上的霍尔位置传感器的配合来检测转子的位置,控制电路板给绕组通电以实现对电机的驱动与控制。4. The brushless DC motor according to claims 2 and 3, wherein the magnetic ring of the sensor detects the position of the rotor by cooperating with the Hall position sensor integrated on the control circuit board, and the control circuit board energizes the winding In order to realize the drive and control of the motor.
CN201310588805.8A 2013-11-20 2013-11-20 Axial magnetic field permanent magnet brushless direct current motor Pending CN103595215A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106921228A (en) * 2017-04-19 2017-07-04 山东大学 A kind of stator, the manufacture method of stator and permanent magnetic brushless
CN107947528A (en) * 2015-01-26 2018-04-20 项富宏 Body-building generator
WO2020108250A1 (en) * 2018-11-27 2020-06-04 深圳核心医疗科技有限公司 Disc-type electric motor
WO2021008075A1 (en) * 2019-07-15 2021-01-21 珠海凯邦电机制造有限公司 Motor stator assembly and motor

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4952830A (en) * 1988-09-22 1990-08-28 Mitsubishi Denki Kabushiki Kaisha Brushless motor with hall elements
CN1304575A (en) * 1999-05-11 2001-07-18 赫加奈斯公司 Stator with teeth formed from soft magnetic powder material
CN2556843Y (en) * 2002-06-18 2003-06-18 上海安乃达驱动技术有限公司 Brushless dc otor for electric motor car
JP2009022146A (en) * 2007-07-13 2009-01-29 Sumitomo Electric Ind Ltd Axial motor
CN103346638A (en) * 2013-07-03 2013-10-09 中国科学院电工研究所 Disc-type motor
CN203589994U (en) * 2013-11-20 2014-05-07 华中科技大学 Axial magnetic field permanent magnet brushless DC motor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4952830A (en) * 1988-09-22 1990-08-28 Mitsubishi Denki Kabushiki Kaisha Brushless motor with hall elements
CN1304575A (en) * 1999-05-11 2001-07-18 赫加奈斯公司 Stator with teeth formed from soft magnetic powder material
CN2556843Y (en) * 2002-06-18 2003-06-18 上海安乃达驱动技术有限公司 Brushless dc otor for electric motor car
JP2009022146A (en) * 2007-07-13 2009-01-29 Sumitomo Electric Ind Ltd Axial motor
CN103346638A (en) * 2013-07-03 2013-10-09 中国科学院电工研究所 Disc-type motor
CN203589994U (en) * 2013-11-20 2014-05-07 华中科技大学 Axial magnetic field permanent magnet brushless DC motor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107947528A (en) * 2015-01-26 2018-04-20 项富宏 Body-building generator
CN106921228A (en) * 2017-04-19 2017-07-04 山东大学 A kind of stator, the manufacture method of stator and permanent magnetic brushless
CN106921228B (en) * 2017-04-19 2023-05-23 山东大学 Stator, manufacturing method of stator and permanent magnet brushless motor
WO2020108250A1 (en) * 2018-11-27 2020-06-04 深圳核心医疗科技有限公司 Disc-type electric motor
WO2021008075A1 (en) * 2019-07-15 2021-01-21 珠海凯邦电机制造有限公司 Motor stator assembly and motor

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Application publication date: 20140219