CN103001424B - The outer rotating motor of Axial and radial excitation brushless, permanently - Google Patents
The outer rotating motor of Axial and radial excitation brushless, permanently Download PDFInfo
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- CN103001424B CN103001424B CN201210591796.3A CN201210591796A CN103001424B CN 103001424 B CN103001424 B CN 103001424B CN 201210591796 A CN201210591796 A CN 201210591796A CN 103001424 B CN103001424 B CN 103001424B
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Abstract
The present invention is applicable to machine field, it is provided that a kind of Axial and radial excitation permanent magnetic brushless, including: the first axial rotor, the second axial rotor, radial rotor and stator module. Stator module includes: fixing axle, be fixed on the radial stator support of fixing axle, the first axial stator, the second axial stator, radial stator, the first folding winding and the second folding winding, and the first axial stator, the second axial stator and radial stator are fixed on radial stator support. First axial rotor and the second axial rotor are arranged in described fixing axle two ends and are oppositely arranged, and are provided with permanent magnet in each rotor. Being formed a closing cavity by the first axial rotor, the second axial rotor and radial rotor, described stator module is fixed on the described fixing axle being in described closing cavity. The present invention can utilize the space of motor internal to greatest extent, improves the magnetic field distribution of motor, thus improving the efficiency of motor.
Description
Technical field
The present invention relates to electric motors, more particularly, it relates to Axial and radial excitation permanent magnet brushless electromotor.
Background technology
Axial and radial excitation permanent magnet brushless electromotor is a kind of electromechanical energy conversion device, and it is widely used in walking instrument, and the motor that walking instrument is applied has its distinctive performance requirement: starting torque is big, stepless time adjustment, electric current is little, power density is big. Being expert at, traveling sparetime university requires high accuracy constant-speed drive, additionally requires more and more higher in low vibration, low noise etc.; Therefore except require produced by current of electric electromagnetic torque pulsation want little except, also require to reduce permanent magnetic field and magnetic response moment variations that core structure produces be little. The trend when structure of conventional magneto is by magnetic flux traverse air gap 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, power density can not be effectively improved, such as, for radial flux column permanent-magnet motor, when motor draw ratio is less, 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 axial magnetic flux disc-type permanent magnet motor, have a big chunk space waste on End winding at internal diameter unshakable in one's determination and external diameter.
Summary of the invention
The invention provides a kind of Axial and radial excitation permanent magnet brushless electromotor, it is therefore intended that solve that motor internal space utilization in prior art is not enough and that cause magnetic field intensity is not high, and then cause the problem that electric efficiency is not high.
In order to solve the problems referred to above, the technical solution used in the present invention is:
Axial and radial excitation permanent magnetic brushless, including: the first axial rotor, the second axial rotor, radial rotor and be provided with the stator module of fixing axle, described first axial rotor and the second axial rotor are located in the two ends of described fixing axle, and described radial rotor is arranged between the first axial rotor and the second axial rotor;Described first axial rotor, second axial rotor and radial rotor composition one closing cavity, described stator module is fixed on the described fixing axle being in described closing cavity, described stator module also includes: radial stator support, first axial stator, second axial stator, radial stator, first folding winding and the second folding winding, described radial stator support vertical is fixed on described fixing axle, described first axial stator, second axial stator and radial stator are fixed on described radial stator support, described first folding winding and the second folding winding are respectively wound around described first axial stator, in second axial stator.
Further: described first axial rotor includes: the first axial permanent magnetic ferrum, the first end cap, the first magnetic conductive disk and the first rolling bearing; Described first end cap is connected by one end of the first rolling bearing and described fixing axle; Described first magnetic conductive disk is fixed on inside described first end cap, and described first axial permanent magnetic body is fixed on inside described first magnetic conductive disk; Described second axial rotor also includes: the second axial permanent magnetic ferrum, the second end cap, the second magnetic conductive disk and the second rolling bearing; Described second end cap is connected by the other end of the second rolling bearing and described fixing axle; Described second magnetic conductive disk is fixed on inside the second end cap, and described second axial permanent magnetic body is fixed on inside the second magnetic conductive disk. .
Further: described radial rotor includes: radial permanent magnet ferrum, casing and magnetic guiding loop; Described casing is cylindric, and its both ends of the surface respectively with the first axial rotor, the second axial rotor are fixed; Described magnetic guiding loop is fixed on described internal side of shell, and described radial permanent magnet body is fixed on inside described magnetic guiding loop.
Further: described radial stator support is hollow tubular and connects with described fixing axle square crossing; Described radial stator is fixed on the both ends of the surface of described radial stator support, and described first axial stator and the second axial stator are fixed on described radial stator support excircle and symmetrical relative to described fixing axle axial line.
Further: described first axial rotor and the second axial rotor are oppositely arranged.
Further: also include three phase mains lead-in wire, described three phase mains lead-in wire and the first folding winding or the second folding winding connects.
Technology provided by the invention having the beneficial effects that compared with prior art: the present invention by being respectively provided with the first axial stator, the second axial stator and arranging radial rotor at radial stator bracket end face on the circumference side of the radial stator support of open circles tubulose, and respectively the first folding winding and the second folding winding are set in the first axial stator, the second axial stator, make use of the space of motor internal to greatest extent, improve the magnetic density of motor internal, therefore also improve the power of motor.
Accompanying drawing explanation
The Axial and radial excitation permanent magnet brushless electromotor structural representation that Fig. 1 provides for the embodiment of the present invention;
First axial rotor structure schematic diagram of the Axial and radial excitation permanent magnet brushless electromotor that Fig. 2 provides for the embodiment of the present invention;
The radial rotor structural representation of the Axial and radial excitation permanent magnet brushless electromotor that Fig. 3 provides for the embodiment of the present invention;
The stator member structure schematic diagram of the Axial and radial excitation permanent magnet brushless electromotor that Fig. 4 provides for the embodiment of the present invention.
Detailed description of the invention
In order to make the technical problem to be solved, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated. Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention. With reference to Fig. 1 and in conjunction with Fig. 2, Fig. 3, Fig. 4.The Axial and radial excitation permanent magnet brushless electromotor structural representation that Fig. 1 provides for the embodiment of the present invention. Fig. 2 is the structural representation of the first axial rotor 1, and it is identical with the second axial rotor 2 structure.
With reference to Fig. 1, this Axial and radial excitation permanent magnet brushless electromotor is made up of first axial rotor the 1, second axial rotor 2, radial rotor 3, stator module 4. Stator module 4 includes fixing axle 46, the fixing axle 46 of traverse that the first axial rotor 1 is relative respectively with the second axial rotor 2, and is oppositely arranged on the two ends of fixing axle 46. Radial rotor 3 is then set on fixing axle 46, and it is hollow cylindrical, the inner side of its two end face respectively with the first axial rotors 1 and the inner side fixed seal connection of the second axial rotor 2 on the whole. Therefore, first axial rotor the 1, second axial rotor 2 and radial rotor 3 constitute a cylindrical cavity being enclosed within fixing axle 46. Stator module 4 also includes the first axial stator 41, radial stator support 42, the folding winding of radial stator 43, first 44, second folding winding 48, the second axial stator 45, fixing axle 46. Radial stator support 42 is open circles tubulose, its axial line and fixing axle 46 vertical distribution. First axial stator the 41, second axial stator 45 is fixed on radial stator support 42 sidewall circumference, and the first folding winding 44 and the second folding winding 48 are then respectively wound around above first axial stator the 41, second axial stator 45. And at the two ends of radial stator support 42, then it is fixed with radial stator 43. The designing points of said structure is in that, utilizes the finite length of radial stator support 42, is as much as possible wound around folding windings more, improves the utilization rate in motor internal space, lifting motor power.
With reference to Fig. 1 and in conjunction with Fig. 2, Fig. 3. First axial rotor 1 includes: first end cap the 11, first magnetic conductive disk the 12, first axial permanent magnetic body the 13, first rolling bearing 14. First magnetic conductive disk 12 is fixed on the inner side of the first end cap 11, and the first axial permanent magnetic body 13 is fixed on the inner side of the first magnetic conductive disk 12, and the first end cap 11 is connected to one end of fixing axle 46 by clutch shaft bearing 14. Owing to the structure of the second axial rotor 2 is identical with the first axial rotor, namely include: second end cap the 21, second magnetic conductive disk the 22, second axial permanent magnetic body the 23, second bearing 24; The inner side being 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 inner side of the second magnetic conductive disk 22. Second end cap 21 is connected to the other end of fixing axle 46 by clutch shaft bearing 24. Owing to the first axial rotor 1 and the second axial rotor 2 are oppositely arranged on the two ends of fixing axle 46 respectively, therefore the first axial permanent magnetic body 13 and the second axial permanent magnetic body 23 are oppositely arranged.
With reference to Fig. 1 and in conjunction with the structural representation that Fig. 3, Fig. 3 are radial rotor 3. Radial rotor 3 includes: casing 31, magnetic guiding loop 32, radial permanent magnet body 33. Cylindrically, magnetic guiding loop 32 is fixed on the inner side of casing 31 to casing 31, and radial permanent magnet body 33 is fixed on the inner side of magnetic guiding loop 32. First end cap 11 of both ends of the surface respectively with the first axial rotor 1 of radial rotor 3 and the second end cap 21 of the second axial rotor 2 connect with bolt (not shown) removable seal. Therefore first axial rotor the 1, second axial rotor 2 and radial rotor 3 constitute a columnar cavity sealed, and the inside circumference of this cavity is provided with radial permanent magnet body 33, and two bottoms are then provided with the first axial permanent magnetic body 13 and the second axial permanent magnetic body 23.The inner side being equivalent to whole cavity has all been covered with magnetic field, and this produces electric current for motor and provides the magnetic field environment of necessity.
With reference to Fig. 4, for the significantly more efficient confined space utilizing motor internal, the first axial stator 41 and the second axial stator 45 are symmetrical relative to fixing axle 46 axial line. Owing to the first folding winding 44 and the second folding winding 48 are wrapped in outside the first axial stator 41 and the second axial stator 45, therefore, first folding winding 44 and the second folding winding 48 are symmetrical also relative to the axial line of fixing axle 46, this structure makes coil windings distribution more uniform, can utilize the magnetic flux of motor internal to greatest extent.
With reference to Fig. 4, additionally, in order to effectively be transferred out by the electric current that motor produces, also include three phase mains lead-in wire 47, it and the first folding winding 44 or the second folding winding 48 connect, and are connected by fixing axle 46 and outside electrical energy storage. 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 (MgO-ZrO_2 brick), equal to integer, is integer groove winding; Equal to mark, it is fractional-slot winding. If adopting integer groove winding in permagnetic synchronous motor, the tooth often producing stator is attracting with the magnetic pole of rotor and produces the phenomenon of similar " aliging in tooth pole " with stepping motor, the pulsation that namely slot effect causes, motor running is produced harmful effect, therefore adopts fractional-slot winding here.
One of advantage of fractional-slot winding can stagger the tooth on stator and the magnetic pole on rotor mutually exactly, thus improving 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 MgO-ZrO_2 brick; Z groove number; 2P number of pole-pairs; The m number of phases. In the present embodiment, motor adopts fractional-slot winding. The groove of fractional-slot winding and magnetic pole coordinate a lot, mainly see integrated motor technical specification, particularly rotating speed, and the apolegamy of high rotating speed magnetic pole is few; The apolegamy of low speed magnetic pole is more. As: m=3, Z=36, P=20, q=Z/2pm=3/10, it is adaptable to slowspeed machine; M=3, Z=12, P=7, q=Z/2pm=2/7, it is adaptable to middle slowspeed machine. The design is that magnetic pole 8 is right, both 16 pole, then: q=Z/2pm=18/16*3=3/8 this be one can not mark about again, so it is a fractional-slot winding motor.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent replacement and improvement etc. made within the spirit and principles in the present invention, should be included within protection scope of the present invention.
Claims (4)
1. Axial and radial excitation permanent magnetic brushless, it is characterized in that: including: the first axial rotor, second axial rotor, radial rotor and the stator module being provided with fixing axle, described first axial rotor and the second axial rotor are located at the two ends of described fixing axle relatively, described radial rotor is arranged between the first axial rotor and the second axial rotor, make described first axial rotor, second axial rotor and radial rotor composition one closing cavity, described stator module is in this closing cavity, described stator module also includes: the radial stator support in hollow tubular, first axial stator, second axial stator, radial stator, first folding winding and the second folding winding, described radial stator support vertical intersection is fixed on described fixing axle, described first axial stator and the second axial stator are separately fixed on the excircle of described radial stator support and symmetrical relative to described fixing axle axial line, described radial stator is fixed in the both ends of the surface of described radial stator support, described first folding winding and the second folding winding are respectively wound around described first axial stator, on the outside of the second axial stator, and described first folding winding and the second folding winding symmetrical relative to the axial line of described fixing axle, described first folding winding and the second folding winding are fractional-slot winding.
2. Axial and radial excitation permanent magnetic brushless as claimed in claim 1, it is characterised in that: described first axial rotor includes: the first axial permanent magnetic body, the first end cap, the first magnetic conductive disk and the first rolling bearing;Described first end cap is connected by one end of the first rolling bearing and described fixing axle; Described first magnetic conductive disk is fixed on inside described first end cap, and described first axial permanent magnetic body is fixed on inside described first magnetic conductive disk; Described second axial rotor includes: the second axial permanent magnetic body, the second end cap, the second magnetic conductive disk and the second rolling bearing, and described second end cap is connected by the other end of the second rolling bearing and described fixing axle; Described second magnetic conductive disk is fixed on inside the second end cap, and described second axial permanent magnetic body is fixed on inside the second magnetic conductive disk.
3. Axial and radial excitation permanent magnetic brushless as claimed in claim 1, it is characterised in that: described radial rotor includes: radial permanent magnet body, 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 described radial permanent magnet body is fixed on inside described magnetic guiding loop.
4. Axial and radial excitation permanent magnetic brushless as claimed in claim 1, it is characterised in that: also include three phase mains lead-in wire, described three phase mains lead-in wire and the first folding winding or the second folding winding connects.
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| Application Number | Priority Date | Filing Date | Title |
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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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| CN103001424A CN103001424A (en) | 2013-03-27 |
| CN103001424B true CN103001424B (en) | 2016-06-15 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| 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 |
| JP2020096396A (en) * | 2017-03-30 | 2020-06-18 | 日本電産テクノモータ株式会社 | Rotor and motor with the same |
| CN113595286A (en) * | 2021-08-20 | 2021-11-02 | 广东白云学院 | Car hub motor |
| CN114776585B (en) * | 2022-04-26 | 2024-05-17 | 西南石油大学 | An oil-gas-sand three-phase mixed transport pump driven by an embedded permanent magnet synchronous motor |
| CN119154615A (en) * | 2024-10-08 | 2024-12-17 | 杭州宝岳电气技术有限公司 | Variable-power energy-saving direct-driving force device |
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| 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 Folded Windings |
| CN101667768A (en) * | 2009-10-01 | 2010-03-10 | 哈尔滨工业大学 | Brushless feed claw-pole composite motor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101199103B (en) * | 2005-06-10 | 2012-08-08 | 丰田自动车株式会社 | Electric rotating machine |
| 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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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 Folded Windings |
| CN101667768A (en) * | 2009-10-01 | 2010-03-10 | 哈尔滨工业大学 | Brushless feed claw-pole composite motor |
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