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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Publication number
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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CN
China
Prior art keywords
stator
motor
permanent magnet
circuit board
control circuit
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.)
Pending
Application number
CN201310588805.8A
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Chinese (zh)
Inventor
杨凯
张�浩
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.)
Huazhong University of Science and Technology
Original Assignee
Huazhong University of Science and Technology
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Filing date
Publication date
Application filed by Huazhong University of Science and Technology filed Critical Huazhong University of Science and Technology
Priority to CN201310588805.8A priority Critical patent/CN103595215A/en
Publication of CN103595215A publication Critical patent/CN103595215A/en
Pending legal-status Critical Current

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Abstract

The invention discloses an axial magnetic field permanent magnet brushless direct current motor. The brushless direct current motor comprises a rotary shaft, a bearing, a front end cover, a rear end cover, an enclosure, a rotor disk, a permanent magnet, a stator, a fixed ring, a sensor magnet ring and a control circuit board, wherein an iron core of the stator is formed by silicon steel sheets and soft magnetic composite materials in a combined mode. The axial magnetic field permanent magnet brushless direct current motor not only can play the advantage of saving materials of an armature motor with an iron core, but also can have the advantages of being simple in iron core machining technology and winding process and high in coil space factor.

Description

A kind of axial magnetic field permanent magnet brshless DC motor
Technical field
The present invention relates to technical field of motors, be specifically related to a kind of axial magnetic field permanent magnet brshless DC motor.
Background technology
Existing axial magnetic field permanent magnet brshless DC motor is mainly divided into two kinds, and being respectively armature non iron-core and armature has motor unshakable in one's determination.
In the prior art, utility model patent 201020696399.9 discloses a kind of dual-rotor disc type brushless motor, the stator winding that the stator of this motor is disc type, non iron-core; Be furnished with two rotors, be arranged on respectively on axle, the first rotor is between front end housing and stator winding, and the second rotor is between rear end cap and stator winding.On each rotor, be fixed with somely to permanent-magnet pole, between stator winding surface and the permanent-magnet pole surface of first, second rotor, keep even air gap.The armature non iron-core of this motor, slotless effect, processing is simple, and axial dimension is little, but power is generally less; Under Same Efficieney, compared with there being motor unshakable in one's determination, its radial dimension is large, and permanent magnet consumption increases.
Utility model patent 200420079912.4 has been announced a kind of Brushless direct-flow disc type machine of low pressure and high-power and permanent magnet, the stator component of this motor is comprised of stator core and Y type three-phase winding coil, end face in stator core is provided with some equably for inlaying the end face radial slot of winding coil, three-phase winding coil by the Distribution Principle mutually insulated of Y type be embedded in radial slot.Have motor unshakable in one's determination owing to having reduced effective air gap, can save material, but stator core is silicon steel sheet, through overshoot volume technique, be made, its processing is more complicated, and working (machining) efficiency is also lower, and winding ratio is more difficult, and copper factor is low.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of armature of can bringing into play to have motor unshakable in one's determination to save the advantage of material, can there is again a kind of axial magnetic field permanent magnet brshless DC motor of the advantage that processing technology unshakable in one's determination is simple, coiling is simple, copper factor is high.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of axial magnetic field permanent magnet brshless DC motor, comprise rotating shaft, bearing, front end housing, rear end cap, casing, rotor disk, permanent magnet, stator, retainer ring, transducer magnet ring and control circuit board, described permanent magnet is bonded on rotor disk, form main pole, described rotor disk is fixed in described rotating shaft, described stator is fixed on retainer ring, retainer ring is fixed on casing, front end housing, rear end cap and casing form the shell of motor, one end of rotating shaft is arranged on front end housing by bearing, and the other end of rotating shaft is arranged on rear end cap by bearing; Control circuit board is fixed on rear end cap, and described transducer magnet ring is arranged between retainer ring and control circuit board and is fixed in described rotating shaft.
Wherein, described stator is comprised of stator tooth, stator yoke portion, lining and winding, and described winding is for concentrating winding, and directly, on lining, lining is insulating material and is sleeved on described stator tooth, in the groove of stator tooth insertion stator yoke portion.
Wherein, by soft-magnetic composite material, the method through powder metallurgy processes described stator tooth, and stator yoke portion is silicon steel sheet.
Wherein, described transducer magnet ring is by the position that coordinates to come detection rotor with being integrated in the hall position sensor on control circuit board, and control circuit board switches on to realize the driving of motor and control to winding.
The obtained beneficial effect of the present invention is as follows: because stator is for there being core construction, reduced effective air gap, can save the consumption of permanent magnetic material; By soft-magnetic composite material, the method through powder metallurgy processes stator tooth, and processing is simple can save raw material simultaneously; The stator yoke portion that stator core is silicon steel sheet by stator tooth and material forms, and assembly technology is simple; Winding is for concentrating winding, and directly, on lining, coiling is simple, copper factor is high, can improve the efficiency of motor; Control circuit board and motor integrate, and have improved the compactedness of system.
Accompanying drawing explanation
Fig. 1 is axial magnetic field permanent magnet brushless DC motor structure schematic diagram of the present invention;
Fig. 2 is the stator tooth schematic diagram in axial magnetic field permanent magnet brshless DC motor of the present invention;
Fig. 3 is the lining schematic diagram in axial magnetic field permanent magnet brshless DC motor of the present invention;
Fig. 4 is the stator schematic diagram in axial magnetic field permanent magnet brshless DC motor of the present invention.
In figure: 1-rotating shaft, 2-bearing, 3-front end housing, 4-rotor disk, 5-permanent magnet, 6-stator, 7-retainer ring, 8-casing, 9-transducer magnet ring, 10-control circuit board, 11-rear end cap, 12-stator yoke portion, 13-stator tooth, 14-lining, 15-coil
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the present invention is further elaborated.
As shown in Figure 1, electric machine structure of the present invention is: motor is comprised of rotating shaft 1, bearing 2, front end housing 3, rear end cap 11, casing 8, rotor disk 4, permanent magnet 5, stator 6, retainer ring 7, transducer magnet ring 9 and control circuit board 10.Permanent magnet 5 is bonded on rotor disk 4, form main pole, rotor disk 4 is fixed in rotating shaft 1, stator 6 is fixed on retainer ring 7, retainer ring 7 is fixed on casing 8, front end housing 3, rear end cap 11 and casing 8 form the shell of motor, and one end of rotating shaft 1 is arranged on front end housing 3 by bearing 2, and the other end of rotating shaft 1 is arranged on rear end cap 11 by bearing 2.Control circuit board 10 is fixed on rear end cap 11, and transducer magnet ring 9 is between retainer ring 7 and control circuit board 10 and be fixed in rotating shaft 1.Transducer magnet ring 9 is by the position that coordinates to come detection rotor with being integrated in the hall position sensor on control circuit board 10, and control circuit board 10 switches on to realize the driving of motor and control to winding.
Fig. 2 illustrates the stator tooth in axial magnetic field permanent magnet brshless DC motor of the present invention, and Fig. 3 illustrates the lining in axial magnetic field permanent magnet brshless DC motor of the present invention.As shown in Figure 4, stator 6 is comprised of stator tooth 13, stator yoke portion 12, lining 14 and winding 15.Winding 15 is for concentrating winding, and it is directly on lining 14, and lining 14 is insulating material and is enclosed within on stator tooth 13, in the groove of stator tooth 13 insertion stator yoke portions 12.
Although by reference to the accompanying drawings preferred embodiment of the present invention is described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not departing from the scope situation that aim of the present invention and claim protect, can also make a lot of forms, within these all belong to protection scope of the present invention.

Claims (4)

1. an axial magnetic field permanent magnet brshless DC motor, comprise rotating shaft, bearing, front end housing, rear end cap, casing, rotor disk, permanent magnet, stator, retainer ring, transducer magnet ring and control circuit board, described permanent magnet is bonded on rotor disk, form main pole, described rotor disk is fixed in described rotating shaft, described stator is fixed on retainer ring, described retainer ring is fixed on casing, front end housing, rear end cap and casing form the shell of motor, one end of described rotating shaft is arranged on front end housing by described bearing, the other end of described rotating shaft is arranged on rear end cap by bearing, control circuit board is fixed on rear end cap, and described transducer magnet ring is arranged between retainer ring and control circuit board and is fixed in described rotating shaft.
2. brshless DC motor according to claim 1, wherein, described stator is comprised of stator tooth, stator yoke portion, lining and winding, described winding is for concentrating winding, directly, on lining, lining is insulating material and is sleeved on described stator tooth, in the groove of stator tooth insertion stator yoke portion.
3. brshless DC motor according to claim 2, wherein, by soft-magnetic composite material, the method through powder metallurgy processes described stator tooth, and stator yoke portion is silicon steel sheet.
4. according to the brshless DC motor described in claim 2 and 3, wherein, described transducer magnet ring is by the position that coordinates to come detection rotor with being integrated in the hall position sensor on control circuit board, and control circuit board switches on to realize the driving of motor and control to winding.
CN201310588805.8A 2013-11-20 2013-11-20 Axial magnetic field permanent magnet brushless direct current motor Pending CN103595215A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310588805.8A CN103595215A (en) 2013-11-20 2013-11-20 Axial magnetic field permanent magnet brushless direct current motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310588805.8A CN103595215A (en) 2013-11-20 2013-11-20 Axial magnetic field permanent magnet brushless direct current motor

Publications (1)

Publication Number Publication Date
CN103595215A true CN103595215A (en) 2014-02-19

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Cited By (3)

* 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
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

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

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 (3)

* 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
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

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