CN103001424A - Axial-radial excitation permanent magnet brushless outward turning motor - Google Patents

Axial-radial excitation permanent magnet brushless outward turning motor Download PDF

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Publication number
CN103001424A
CN103001424A CN2012105917963A CN201210591796A CN103001424A CN 103001424 A CN103001424 A CN 103001424A CN 2012105917963 A CN2012105917963 A CN 2012105917963A CN 201210591796 A CN201210591796 A CN 201210591796A CN 103001424 A CN103001424 A CN 103001424A
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Prior art keywords
axial
stator
radial
rotor
fixed
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CN2012105917963A
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CN103001424B (en
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曹玉和
刘晋权
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SHENZHEN SHUANGHUAN QX MOTOR CO Ltd
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SHENZHEN SHUANGHUAN QX MOTOR CO Ltd
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Abstract

The invention belongs to the field of motors and provides an axial-radial excitation permanent magnet brushless motor. The motor comprises a first axial rotor, a second axial rotor, a radial rotor and a stator component, the stator component comprises a fixing shaft, a radial stator support, a first axial stator, a second axial stator, a radial stator, a first folding winding and a second folding winding, the radial stator support is fixed on the fixing shaft, and the first axial stator, the second axial stator and the radial stator are fixed on the radial stator support. The first axial rotor and the second axial rotor are arranged at two ends of the fixing shaft in a penetrating mode and oppositely arranged, and permanent magnets are arranged in the rotors respectively. The first axial rotor, the second axial rotor and the radial rotor form an enclosed cavity, and the stator component is fixed on the fixing shaft in the enclosed cavity. By means of the axial-radial excitation permanent magnet brushless motor, the space in the motor can be utilized to the hilt, the magnetic field intensity distribution of the motor is improved, and thereby the efficiency of the motor is improved.

Description

The diameter of axle is rotating motor outside the excitation brushless, permanently
Technical field
The present invention relates to electric motors, more particularly, relate to the diameter of axle to the excitation permanent magnet brushless electromotor.
Background technology
The diameter of axle is a kind of electromechanical energy conversion device to the excitation permanent magnet brushless electromotor, and it is widely used in the walking instrument, and the applied motor of walking instrument has its distinctive performance requirement: starting torque is large, stepless time adjustment, electric current is little, power density is large etc.The traveling sparetime university of being expert at requires the high accuracy constant speed to drive more, and is more and more higher in the requirement of the aspects such as low vibration, low noise in addition; Therefore except the electromagnetic torque pulsation that requires current of electric to produce want little, also require to reduce the magnetic response moment variations that permanent magnetic field and core structure produce little.Trend when the structure of magneto commonly used is passed air gap by magnetic flux is divided into radial flux column permanent-magnet motor and axial magnetic flux disc-type permanent magnet motor, the structure of every kind of independent type motor is compact not enough, can not the Effective Raise power density, for example, for radial flux column permanent-magnet motor, when the motor draw ratio hour, winding overhang length accounts for the large percentage of motor axial length, and bottom land is not utilized to a big chunk space of between centers; And for the axial magnetic flux disc-type permanent magnet motor, have a big chunk space to be wasted on the winding of end at internal diameter unshakable in one's determination and external diameter.
Summary of the invention
The invention provides a kind of diameter of axle to the excitation permanent magnet brushless electromotor, purpose is to solve that motor internal space utilization in the prior art is not enough and magnetic field intensity that cause is not high, and then causes the not high problem of electric efficiency.
In order to address the above problem, the technical solution used in the present invention is:
The diameter of axle is to the excitation permanent magnetic brushless, comprise: the first axial rotor, the second axial rotor, radial rotor and be provided with the stator module of fixed axis, described the first axial rotor and the second axial rotor are located in the two ends of described fixed axis, and described radial rotor is arranged between the first axial rotor and the second axial rotor; Described the first axial rotor, the second axial rotor and radial rotor form an enclosed cavity, described stator module is fixed on the described fixed axis that is in the described enclosed cavity, described stator module also comprises: the radial stator support, the first axial stator, the second axial stator, radial stator, first fold lap winding and the second folding winding, described radial stator support vertical is fixed on the described fixed axis, described the first axial stator, the second axial stator and radial stator are fixed on the described radial stator support, and described first fold lap winding and the second folding winding are wrapped in respectively described the first axial stator, on the second axial stator.
Further: described the first axial rotor comprises: the first axial permanent magnetic iron, the first end cap, the first magnetic conductive disk and the first rolling bearing; Described the first end cap by the first rolling bearing be connected an end of fixed axis and connect; It is inboard that described the first magnetic conductive disk is fixed on described the first end cap, and it is inboard that described the first axial permanent magnetic body is fixed on described the first magnetic conductive disk; Described the second axial rotor also comprises: the second axial permanent magnetic iron, the second end cap, the second magnetic conductive disk and the second rolling bearing; Described the second end cap by the second rolling bearing be connected the other end of fixed axis and connect; It is inboard that described the second magnetic conductive disk is fixed on the second end cap, and it is inboard that described the second axial permanent magnetic body is fixed on the second magnetic conductive disk.。
Further: described radial rotor comprises: radial permanent magnet iron, casing and magnetic guiding loop; Described casing is cylindric, and its both ends of the surface are fixed with the first axial rotor, the second axial rotor respectively; Described magnetic guiding loop is fixed on described internal side of shell, and it is inboard that described radial permanent magnet body is fixed on described magnetic guiding loop.
Further: described radial stator support be hollow tubular and be connected the fixed axis square crossing and connect; Described radial stator is fixed in the both ends of the surface of described radial stator support, and described the first axial stator and the second axial stator are fixed on described radial stator support excircle and symmetrical with respect to described fixed axis axial line.
Further: described the first axial rotor and the second axial rotor are oppositely arranged.
Further: also comprise three phase mains lead-in wire, described three phase mains lead-in wire is connected the second folding winding connection with the first fold lap winding.
Technology provided by the invention beneficial effect compared with prior art is: the present invention is by arranging respectively the first axial stator, the second axial stator and at the radial stator bracket end face radial rotor being set on the circumference side of the radial stator support of open circles tubulose, and in the first axial stator, the second axial stator first fold lap winding and the second folding winding are set respectively, utilized to greatest extent the space of motor internal, improve the magnetic density of motor internal, therefore also improved the power of motor.
Description of drawings
The diameter of axle that Fig. 1 provides for the embodiment of the invention is to excitation permanent magnet brushless electromotor structural representation;
The diameter of axle that Fig. 2 provides for the embodiment of the invention is to the first axial rotor structure schematic diagram of excitation permanent magnet brushless electromotor;
The diameter of axle that Fig. 3 provides for the embodiment of the invention is to the radial rotor structural representation of excitation permanent magnet brushless electromotor;
The diameter of axle that Fig. 4 provides for the embodiment of the invention is to the stator module structural representation of excitation permanent magnet brushless electromotor.
Embodiment
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.With reference to figure 1 and in conjunction with Fig. 2, Fig. 3, Fig. 4.The diameter of axle that Fig. 1 provides for the embodiment of the invention is to excitation permanent magnet brushless electromotor structural representation.Fig. 2 is the structural representation of the first axial rotor 1, and it is identical with the second axial rotor 2 structures.
With reference to figure 1, this diameter of axle is comprised of the first axial rotor 1, the second axial rotor 2, radial rotor 3, stator module 4 to the excitation permanent magnet brushless electromotor.Stator module 4 includes the respectively relative fixed axis 46 that passes of fixed axis 46, the first axial rotors 1 and the second axial rotor 2, and is oppositely arranged on the two ends of fixed axis 46.3 of radial rotor are set on the fixed axis 46, and it is the open circles tubular on the whole, its two end faces respectively with the inboard fixed seal connection of inboard and second axial rotor 2 of the first axial rotor 1.Therefore, the first axial rotor 1, the second axial rotor 2 and radial rotor 3 have consisted of a cylindrical cavity that is enclosed within on the fixed axis 46.Stator module 4 also includes the first axial stator 41, radial stator support 42, radial stator 43, first fold lap winding 44, the second folding winding 48, the second axial stator 45, fixed axis 46.Radial stator support 42 is the open circles tubulose, its axial line and fixed axis 46 vertical distribution.The first axial stator 41, the second axial stator 45 are fixed on the radial stator support 42 sidewall circumference, and first fold lap winding 44 and the second folding 48 of windings be wrapped in respectively the first axial stator 41, above the second axial stator 45.And at the two ends of radial stator support 42, then be fixed with radial stator 43.The design main points of said structure are, utilize the finite length of radial stator support 42, as much as possible twine folding winding more, improve the utilance in motor internal space, lifting motor power.
With reference to figure 1 and in conjunction with Fig. 2, Fig. 3.The first axial rotor 1 comprises: the first end cap 11, the first magnetic conductive disk 12, the first axial permanent magnetic body 13, the first rolling bearing 14.The first magnetic conductive disk 12 is fixed on the inboard of the first end cap 11, and the first axial permanent magnetic body 13 is fixed on the inboard of the first magnetic conductive disk 12, and the first end cap 11 is connected to an end of fixed axis 46 by clutch shaft bearing 14.Because structure and first axial rotor of the second axial rotor 2 are identical, namely comprise: the second end cap 21, the second magnetic conductive disk 22, the second axial permanent magnetic body 23, the second bearing 24; The inboard that is fixed on the second end cap 21 of the second magnetic conductive disk 22, the second axial permanent magnetic body 23 is fixed on the inboard of the second magnetic conductive disk 22.The second end cap 21 is connected to the other end of fixed axis 46 by clutch shaft bearing 24.Because the first axial rotor 1 and the second axial rotor 2 are oppositely arranged on respectively the two ends of fixed axis 46, therefore the first axial permanent magnetic body 13 and the second axial permanent magnetic body 23 are oppositely arranged.
With reference to figure 1 and in conjunction with Fig. 3, Fig. 3 is the structural representation of radial rotor 3.Radial rotor 3 comprises: casing 31, magnetic guiding loop 32, radial permanent magnet body 33.Casing 31 is cylindric, and magnetic guiding loop 32 is fixed on the inboard of casing 31, and radial permanent magnet body 33 is fixed on the inboard of magnetic guiding loop 32.The both ends of the surface of radial rotor 3 respectively be connected axial rotor 1 the first end cap 11 be connected the second end cap 21 usefulness bolt (not shown) removable seals of axial rotor 2 and connect.Therefore the first axial rotor 1, the second axial rotor 2 and radial rotor 3 have consisted of the columnar cavity of a sealing, and the inside circumference of this cavity is provided with radial permanent magnet body 33, two bottoms and then is provided with the first axial permanent magnetic body 13 and the second axial permanent magnetic body 23.The inboard that is equivalent to whole cavity all has been covered with magnetic field, and this provides necessary magnetic field environment for the motor generation current.
With reference to figure 4, in order more effectively to utilize the confined space of motor internal, the first axial stator 41 and the second axial stator 45 are symmetrical with respect to fixed axis 46 axial lines.Because first fold lap winding 44 and the second folding winding 48 are wrapped in the first axial stator 41 and the second axial stator 45 outsides, therefore, first fold lap winding 44 and the second folding winding 48 are also symmetrical with respect to the axial line of fixed axis 46, it is more even that this structure distributes coil windings, can utilize to greatest extent the magnetic flux of motor internal.
With reference to figure 4, in addition, for the electric current that motor is produced effectively transfers out, also comprise three phase mains lead-in wire 47, it is connected with the first fold lap winding or the second folding winding 48 connects, and connects with the electrical energy storage of being connected by fixed axis 46.In order to reach the steady reliability service of motor, the apolegamy of magnetic pole logarithm and number of stator slots is extremely important.Q (every extremely every phase groove number) equals integer, is integer groove winding; Equal mark, be fractional slot winding.If in permagnetic synchronous motor, adopt integer groove winding, the magnetic pole that tends to produce the tooth of stator and rotor is inhaled mutually and is produced the phenomenon of " the tooth utmost point aligns " of similar and stepping motor, the namely pulsation that causes of slot effect, operation produces harmful effect to motor, therefore adopts fractional slot winding here.
One of advantage of fractional slot winding can stagger the tooth on the stator and epitrochanterian magnetic pole mutually exactly, thereby has improved the runnability of motor.
According to formula q=Z/2pm, when q is integer, claim integer groove winding; When q is mark, claim fractional slot winding.Wherein: q-every extremely every phase groove number; Z-groove number; 2P-number of pole-pairs; M-number of phases.In the present embodiment, motor adopts fractional slot winding.The groove of fractional slot winding and magnetic pole cooperate a lot, mainly see integrated motor technical indicator, particularly rotating speed, and high rotating speed magnetic pole apolegamy is few; The apolegamy of low speed magnetic pole is more.As: m=3, Z=36, P=20, q=Z/2pm=3/10 is applicable to slowspeed machine; M=3, Z=12, P=7, q=Z/2pm=2/7 is applicable to middle slowspeed machine.The design is 8 pairs of magnetic poles, both 16 utmost points, then: q=Z/2pm=18/16*3=3/8 this be one can not be about mark, so it is a fractional slot winding motor.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.

Claims (5)

1. the diameter of axle is to the excitation permanent magnetic brushless, it is characterized in that: comprising: the first axial rotor, the second axial rotor, radial rotor and the stator module that is provided with fixed axis, described the first axial rotor two ends of being located at described fixed axis relative to the second axial rotor, described radial rotor is arranged between the first axial rotor and the second axial rotor, make described the first axial rotor, the second axial rotor and radial rotor form an enclosed cavity, described stator module is in this enclosed cavity, described stator module also comprises: the radial stator support, the first axial stator, the second axial stator, radial stator, first fold lap winding and the second folding winding, described radial stator support vertical is fixed on the described fixed axis, described the first axial stator, the second axial stator and radial stator are fixed on the described radial stator support, and described first fold lap winding and the second folding winding are wrapped in respectively described the first axial stator, on the second axial stator.
2. the diameter of axle as claimed in claim 1 is characterized in that to the excitation permanent magnetic brushless: described the first axial rotor comprises: the first axial permanent magnetic iron, the first end cap, the first magnetic conductive disk and the first rolling bearing; Described the first end cap by the first rolling bearing be connected an end of fixed axis and connect; It is inboard that described the first magnetic conductive disk is fixed on described the first end cap, and it is inboard that described the first axial permanent magnetic body is fixed on described the first magnetic conductive disk; Described the second axial rotor comprises: the second axial permanent magnetic iron, the second end cap, the second magnetic conductive disk and the second rolling bearing, described the second end cap by the second rolling bearing be connected the other end of fixed axis and connect; It is inboard that described the second magnetic conductive disk is fixed on the second end cap, and it is inboard that described the second axial permanent magnetic body is fixed on the second magnetic conductive disk.
3. the diameter of axle as claimed in claim 1 is characterized in that to the excitation permanent magnetic brushless: described radial rotor comprises: radial permanent magnet iron, casing and magnetic guiding loop; Described casing is cylindric, and its both ends of the surface are fixed with the first axial rotor, the second axial rotor respectively; Described magnetic guiding loop is fixed on described internal side of shell, and it is inboard that described radial permanent magnet body is fixed on described magnetic guiding loop.
4. the diameter of axle as claimed in claim 1 is characterized in that to the excitation permanent magnetic brushless: described radial stator support be hollow tubular and be connected the fixed axis square crossing and connect; Described radial stator is fixed in the both ends of the surface of described radial stator support, and described the first axial stator and the second axial stator are fixed on described radial stator support excircle and symmetrical with respect to described fixed axis axial line.
5. the diameter of axle as claimed in claim 1 is characterized in that to the excitation permanent magnetic brushless: also comprise three phase mains lead-in wire, described three phase mains lead-in wire is connected the second folding winding connection with the first fold lap winding.
CN201210591796.3A 2012-12-31 2012-12-31 The outer rotating motor of Axial and radial excitation brushless, permanently Active CN103001424B (en)

Priority Applications (1)

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CN201210591796.3A CN103001424B (en) 2012-12-31 2012-12-31 The outer rotating motor of Axial and radial excitation brushless, permanently

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CN201210591796.3A CN103001424B (en) 2012-12-31 2012-12-31 The outer rotating motor of Axial and radial excitation brushless, permanently

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104753292A (en) * 2015-04-22 2015-07-01 哈尔滨工业大学 Mixed-magnetic-circuit, permanent-magnet-synchronous and outer-rotor motor
CN104753287A (en) * 2015-04-22 2015-07-01 哈尔滨工业大学 Mixed-magnetic-circuit, permanent-magnet-synchronous and inner-rotor motor
CN106712349A (en) * 2017-01-13 2017-05-24 江苏金飞达电动工具有限公司 Servo permanent magnet motor
JP6316470B1 (en) * 2017-03-15 2018-04-25 鼎朋企業股▲ふん▼有限公司 Electric motor for electric bicycle
WO2018179736A1 (en) * 2017-03-30 2018-10-04 日本電産テクノモータ株式会社 Rotor, and motor with rotor

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CN203135664U (en) * 2012-12-31 2013-08-14 深圳市双环全新机电股份有限公司 Axial-radial excitation permanent magnet brushless motor

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US20090021096A1 (en) * 2005-06-10 2009-01-22 Kazutaka Tatematsu Rotary electric machine
CN2850121Y (en) * 2005-12-06 2006-12-20 浙江大学 Compound permanent magnet electric machine
CN101345440A (en) * 2008-05-21 2009-01-14 哈尔滨工业大学 Permanent magnet motor with shaft radial folding winding
CN101667768A (en) * 2009-10-01 2010-03-10 哈尔滨工业大学 Brushless feed claw-pole composite motor
CN203135664U (en) * 2012-12-31 2013-08-14 深圳市双环全新机电股份有限公司 Axial-radial excitation permanent magnet brushless motor

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104753292A (en) * 2015-04-22 2015-07-01 哈尔滨工业大学 Mixed-magnetic-circuit, permanent-magnet-synchronous and outer-rotor motor
CN104753287A (en) * 2015-04-22 2015-07-01 哈尔滨工业大学 Mixed-magnetic-circuit, permanent-magnet-synchronous and inner-rotor motor
CN106712349A (en) * 2017-01-13 2017-05-24 江苏金飞达电动工具有限公司 Servo permanent magnet motor
JP6316470B1 (en) * 2017-03-15 2018-04-25 鼎朋企業股▲ふん▼有限公司 Electric motor for electric bicycle
JP2018153052A (en) * 2017-03-15 2018-09-27 鼎朋企業股▲ふん▼有限公司 Electric motor used for electric bicycle
WO2018179736A1 (en) * 2017-03-30 2018-10-04 日本電産テクノモータ株式会社 Rotor, and motor with rotor

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