CN1050954A - Rare-earth permanent-magnetic double-stator synchronous motor with cup type rotor - Google Patents
Rare-earth permanent-magnetic double-stator synchronous motor with cup type rotor Download PDFInfo
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- CN1050954A CN1050954A CN 89102454 CN89102454A CN1050954A CN 1050954 A CN1050954 A CN 1050954A CN 89102454 CN89102454 CN 89102454 CN 89102454 A CN89102454 A CN 89102454A CN 1050954 A CN1050954 A CN 1050954A
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- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
A kind of rare-earth permanent-magnetic double-stator synchronous motor with cup type rotor, because adopt radially watt shape permanent magnetism cup-shaped rotor and radially inside and outside double-stator structure, permanent magnetic material can make full use of, cup-shaped rotor can be done very thinly, easily make square wave, inside and outside stator is identical with common electric machine.Advantages such as it is little to have volume, in light weight, and moment of inertia is little, and power is big, and armature reaction is little, and structure and technology are simple.In Aero-Space, Digit Control Machine Tool, flexible manufacturing system (FMS), automatic control system will be used widely in the industrial circles such as robot.
Description
Rare-earth permanent-magnetic double-stator synchronous motor with cup type rotor of the present invention belongs to electricity field.
At present, in field of motor manufacturing, adopted rare earth permanent-magnetic material to make motor widely.In synchronous machine, press the permanent magnet magnetization direction and the different of pattern are installed, tangential, radial and axial three kinds of structures are arranged.The rotor of cutting orientation structure magneto has the intensive effect in magnetic field, and air gap flux density is higher, but leakage field is bigger, and quadrature axis armature reaction is big, and the rotor complex process is generally made single stator structure.The permanent magnet of the synchronous machine of this structure and the volume of motor can not be fully utilized, and therefore, volume and weight can't further reduce, and are difficult to reach its requirement when especially requiring to make the special low magneto of being used to, and application is restricted.The stator of the magneto of axial arrangement can become to do double-stator structure, the rotor that its permanent magnet constitutes is the cake formula, though the motor of this structure is fully used the permanent magnetism physical efficiency, but there is following shortcoming in it: the cake formula rotor of (1) axial arrangement, trans D is big, is difficult for satisfying special low inertia requirement; (2) two stator cores are rolling, and fluting is inconvenient, processing difficulties, complex process; (3) rotor pole face and rotating shaft are installed perpendicularity and are required height, otherwise easily swing; (4) since the stator winding width of cloth to placement, tooth and yoke portion magnetic are close inhomogeneous, permeability magnetic material is underutilized, and the interior outer end portion cloth of stator winding is also inhomogeneous, the inner end cooling difficulty.
In view of the problem that exists in the above-mentioned prior art, task of the present invention is that design a kind ofly can make full use of its permanent magnetic material, and motor volume is little, and armature reaction and moment of inertia are little and easy to process, permanent magnet double-stator synchronous machine simple in structure.
Technical solution of the present invention is to adopt radially watt shape permanent magnetism cup-shaped rotor and radially inside and outside stator structure.Its rotor is the multipole cup-shaped rotor that is combined by watt shape permanent magnetic steel and on-magnetic support and rotating shaft; Radially inside and outside stator is identical with common electric machine.
Below in conjunction with accompanying drawing concrete structure of the present invention and requirement are described.
Accompanying drawing 1 is a kind of specific constructive form schematic diagram of rare-earth permanent-magnetic double-stator synchronous motor with cup type rotor of the present invention.Be fixedly full-enclosed type air-cooled structure of flange, also can make open type certainly, external form can be made the garden cartridge type, band footing formula is air-cooled, or self cool or other water-cooleds, versions such as oil cooling or oil spout cooling.With accompanying drawing 1 is example, it is made of casing (1), external stator core (2), permanent magnet (3,10), inner-stator iron core (4), bearing cap (5), bearing (6), end cap (7), external stator winding (8), internal stator winding (9), front end housing (11), fan (12), rotor (13) etc.Its rotor (13) is formed multipole cup-shaped rotor by a watt shape permanent magnetic steel (3), on-magnetic support (16) and rotating shaft (17).Other high performance permanent magnetic materialses such as watt available SmCo of shape permanent magnet (3), neodymium iron boron make monoblock watt shape or piece constitutes.Rotor field spider (16) is made integral expression or composite type by the higher nonmagnetic substance of intensity.Reasonably select width, length, thickness and the on-magnetic support (16) of permanent magnetic steel (3), can obtain needed waveform (as rectangular wave, sine wave, trapezoidal wave etc.) and satisfy the rotor strength requirement.For reliably, the lining (15) and the protection collar (14) can be set the inside and outside garden week of rotor magnetic steel respectively.The purpose that lining (15) is set is installation and the location for the ease of magnet steel (3).It is to be used for protecting rotor that the protection collar (14) is set, and damages rotor because of centrifugal force when preventing the rotor rotation, is indispensable to high-speed electric expreess locomotive especially.Cup-shaped rotor (13) can single-endedly be fixed in the rotating shaft, also can be fixed in the rotating shaft by an end, the other end by bearing fixing on the sleeve (18) of internal stator (4), to improve the intensity of rotor.Shown in the accompanying drawing 1 is the former, and fan is installed on rotor, between (16) and sleeve (18) and the rotating shaft (17) air duct is arranged on its support.Fixedly in the square casing of external stator core, four jiaos also have air duct, and left and right sides end cap also is provided with corresponding ventilation hole, constitute good air path system in motor.If during with other types of cooling, also be convenient to constitute corresponding cooling.
The equal available silicon steel drift of the armature core of inside and outside stator is pressed and is formed.Structure and technology are all simple.Place stator winding in the groove, winding can be repeatedly winding or wave winding, integer groove or fractional slot winding, and the single or multiple lift winding, the single-phase or three-phase or the polyphase windings of whole distance or short distance, the angle between inside and outside stator winding axis can be selected arbitrarily, general mutual coincidence.Winding overhang is evenly distributed, good heat dissipation.
The present invention compares with existing synchronous motor and has the following advantages:
1. rotor is made cup-shapedly by high performance rare earth permanent-magnetic material magnet steel, can do very thinly, and its rotary inertia is very little, this be existing other synchronous motor can't than;
2. compare with single stator permasyn motor, same using under material and the volume weight, exerting oneself of permanent magnet double-stator cup-shaped rotor synchronous machine will improve more than 30%;
3. double-stator synchronous motor with cup type rotor is easily made square wave, and under the situation identical with material, square-wave motor is exerted oneself than sinusoidal wave motor again and improved 10%;
4. the magnetic capacity μ of cup-shaped rotor watt shape magnet steel
mWith air magnetic capacity μ
OClose, the effective air gap of motor is very big, and armature reaction is very little, is about 20～30% of common electric machine armature reaction, and X
Ag≈ X
Ad, the electric property of motor is better than existing magneto performance.
5. when being used as the brushless DC motor use, square-wave motor does not have torque pulsation, and when doing not have the DC generator use of commutation, square-wave motor obtains DC power supply very stably by the bridge diode rectification, makes the filter simplification;
6. inside and outside stator structure is identical with common electric machine, and structure and technology are all simple.
In view of permanent-magnetic double-stator synchronous motor with cup type rotor of the present invention has above advantage, will be in Aero-Space, the Digit Control Machine Tool machining center, flexible manufacturing system (FMS), automatic control system is used widely in the industrial circles such as robot.
Claims (3)
1, a kind of rare-earth permanent-magnetic double-stator synchronous motor with cup type rotor, constituted by casing (1), external stator core (2), permanent magnet (3), inner-stator iron core (4), bearing cap (5), bearing (6), end cap (7), external stator winding (8), internal stator winding (9), front end housing (11), fan (12), rotor (13) and rotating shaft (17), be it is characterized in that rotor (13) adopts radially watt shape permanent magnetism cup-shaped structure and radially inside and outside double-stator structure.
2, rare-earth permanent-magnetic double-stator synchronous motor with cup type rotor according to claim 1 is characterized in that rotor (13) is combined into multipole cup-shaped rotor by the contour performance permanent magnetic steel of watt shape rare earth (3) and on-magnetic support (16) and rotating shaft (17).
3, want 1 or 2 described rare-earth permanent-magnetic double-stator synchronous motor with cup type rotor according to right, it is characterized in that between support (16) and sleeve (18) and the rotating shaft (17) air duct being arranged, fixedly four jiaos in the square casing of external stator core and left and right sides end cap are provided with respective vent, constitute the air path system of motor or constitute the cooling system of other types of cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89102454 CN1050954A (en) | 1989-10-07 | 1989-10-07 | Rare-earth permanent-magnetic double-stator synchronous motor with cup type rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89102454 CN1050954A (en) | 1989-10-07 | 1989-10-07 | Rare-earth permanent-magnetic double-stator synchronous motor with cup type rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1050954A true CN1050954A (en) | 1991-04-24 |
Family
ID=4854727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89102454 Pending CN1050954A (en) | 1989-10-07 | 1989-10-07 | Rare-earth permanent-magnetic double-stator synchronous motor with cup type rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1050954A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004091076A1 (en) * | 2003-04-09 | 2004-10-21 | Zhengfeng Zhu | An outer magnetic circuit bias magnetic bias reluctance machine with permanent magnets |
| CN101847918A (en) * | 2009-03-24 | 2010-09-29 | 通用汽车环球科技运作公司 | Be used for optimized electric machine for smart actuators |
| US7830064B2 (en) | 2007-04-05 | 2010-11-09 | Samsung Electronics Co., Ltd | Motor and drum washing machine having the same |
| CN102290937A (en) * | 2011-08-05 | 2011-12-21 | 国电联合动力技术有限公司 | Large direct-drive double-stator switched reluctance wind driven generator supported by double bearings |
| CN106451971A (en) * | 2016-11-29 | 2017-02-22 | 湘潭电机股份有限公司 | Permanent magnet motor with double-stator structure |
| CN106712420A (en) * | 2016-11-30 | 2017-05-24 | 上海电机学院 | Permanent magnet synchronous motor |
| WO2019097243A3 (en) * | 2017-11-17 | 2019-06-20 | Cummins Generator Technologies Limited | Excitation system |
| CN111674918A (en) * | 2020-06-02 | 2020-09-18 | 无锡城市职业技术学院 | Intelligent grabbing and lifting device for real-time thickness measurement of differential capacitance sensor |
-
1989
- 1989-10-07 CN CN 89102454 patent/CN1050954A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004091076A1 (en) * | 2003-04-09 | 2004-10-21 | Zhengfeng Zhu | An outer magnetic circuit bias magnetic bias reluctance machine with permanent magnets |
| US7830064B2 (en) | 2007-04-05 | 2010-11-09 | Samsung Electronics Co., Ltd | Motor and drum washing machine having the same |
| CN101847918A (en) * | 2009-03-24 | 2010-09-29 | 通用汽车环球科技运作公司 | Be used for optimized electric machine for smart actuators |
| CN101847918B (en) * | 2009-03-24 | 2015-06-03 | 通用汽车环球科技运作公司 | Optimized electric machine for smart actuators |
| CN102290937A (en) * | 2011-08-05 | 2011-12-21 | 国电联合动力技术有限公司 | Large direct-drive double-stator switched reluctance wind driven generator supported by double bearings |
| CN106451971A (en) * | 2016-11-29 | 2017-02-22 | 湘潭电机股份有限公司 | Permanent magnet motor with double-stator structure |
| CN106451971B (en) * | 2016-11-29 | 2019-04-09 | 湘潭电机股份有限公司 | A kind of magneto of double-stator structure |
| CN106712420A (en) * | 2016-11-30 | 2017-05-24 | 上海电机学院 | Permanent magnet synchronous motor |
| WO2019097243A3 (en) * | 2017-11-17 | 2019-06-20 | Cummins Generator Technologies Limited | Excitation system |
| US11777385B2 (en) | 2017-11-17 | 2023-10-03 | Cummins Generator Technologies Limited | Excitation system |
| CN111674918A (en) * | 2020-06-02 | 2020-09-18 | 无锡城市职业技术学院 | Intelligent grabbing and lifting device for real-time thickness measurement of differential capacitance sensor |
| CN111674918B (en) * | 2020-06-02 | 2021-05-25 | 无锡城市职业技术学院 | Intelligent grabbing and lifting device for real-time thickness measurement of differential capacitance sensor |
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