CN203617799U - Double-DOF (degree of freedom) stator permanent magnet biased permanent magnet type bearingless motor - Google Patents
Double-DOF (degree of freedom) stator permanent magnet biased permanent magnet type bearingless motor Download PDFInfo
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- CN203617799U CN203617799U CN201320861561.1U CN201320861561U CN203617799U CN 203617799 U CN203617799 U CN 203617799U CN 201320861561 U CN201320861561 U CN 201320861561U CN 203617799 U CN203617799 U CN 203617799U
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Abstract
本实用新型公开两自由度定子永磁偏置永磁型无轴承电机，包括电机壳体，电机壳体内设置有转子、定子，所述定子包括定子铁心，定子铁心两侧对称设置有左磁极铁心、右磁极铁心，定子铁心的定子槽内设置转矩绕组、悬浮绕组，定子铁心沿轴向两侧设置有轴向磁化的环形定子永磁体A、环形定子永磁体B；转子包括转子铁心，转子铁心沿轴向设置有径向磁化的环形转子永磁体以及转轴。本实用新型的目的是克服现有的永磁型无轴承电机的不足，提供一种控制简单，悬浮控制、转矩控制相互独立，并可产生更大径向悬浮力的定子永磁偏置永磁型无轴承电机结构。
The utility model discloses a two-degree-of-freedom stator permanent magnet bias permanent magnet type bearingless motor, which includes a motor casing, a rotor and a stator are arranged in the motor casing, and the stator includes a stator core, and left and right sides of the stator core are symmetrically arranged. The magnetic pole core, the right magnetic pole core, the torque winding and the suspension winding are arranged in the stator slot of the stator core, and the axially magnetized annular stator permanent magnet A and the annular stator permanent magnet B are arranged on both sides of the stator core along the axial direction; the rotor includes the rotor core , the rotor core is provided with a radially magnetized annular rotor permanent magnet and a rotating shaft along the axial direction. The purpose of this utility model is to overcome the shortcomings of the existing permanent magnet bearingless motor, to provide a stator permanent magnet bias permanent magnet with simple control, independent suspension control and torque control, and greater radial suspension force. Magnetic type bearingless motor structure.
Description
Technical field
The utility model relates to motor device technical field, is specifically related to a kind of two-freedom stator permanent magnet biasing permanent magnet type non-bearing motor simple, that can produce larger radial suspension force of controlling.
Background technology
Bearing-free motor has without friction without wearing and tearing, without lubricated, be easy to realize higher rotating speed and more high-power operation, particularly permanent magnet type non-bearing motor wherein has simple in structure, the advantage such as operational reliability is high, volume is little, lightweight, efficiency is high and power density is large, has broad application prospects in fields such as flywheel energy storage, high-speed machine tool spindle motor and canned pump, centrifuge, compressor, high-speed micro hard disk drives.
At present, existing permanent magnet type non-bearing motor is the suspending power winding that superposes additional on the torque winding by the stator slot at traditional permagnetic synchronous motor, double winding produces suspending windings magnetic field and the torque winding magnetic field of rotation by the identical three-phase alternating-current supply power supply of frequency respectively, and suspending windings field pole logarithm is that PB, torque winding magnetic field are PM, only have between the two while meeting being related to of PB=PM ± 1, suspending windings magnetic field, torque winding magnetic field and rotor permanent magnet magnetic field triple interaction could produce and stablize controlled radial suspension force.By the radial displacement of radial displacement transducer detection rotor, build suspension closed-loop control system, realize rotor stability and suspend.Because torque is to be produced by torque winding magnetic field and permanent magnet magnetic field interactions, and radial suspension force is mainly to be produced by suspending windings magnetic field and permanent magnet magnetic field interactions, and meanwhile, torque winding magnetic field produces and also has certain influence suspending power.In the time selecting permanent magnet thickness, need consider between the size of radial suspension force and level of torque restricting relation mutually, therefore, limit the generation of radial suspension force; Simultaneously, between suspending windings magnetic field and torque winding magnetic field, there is close coupling, need to adopt complicated decoupling control policy to carry out decoupling zero control to rotary system and suspension system, and suspending power and rotor position angle are closely related, therefore it is less that existing permanent magnet type non-bearing motor has the radial suspension force of generation, control complexity and the lower shortcoming of precision.
Summary of the invention
The purpose of this utility model is the deficiency that overcomes existing permanent magnet type non-bearing motor, provides a kind of and controls simply, and suspension is controlled, torque control is separate, and can produce the stator permanent magnet biasing permanent magnet type non-bearing motor structure of larger radial suspension force.
The utility model is achieved through the following technical solutions:
Two-freedom stator permanent magnet biasing permanent magnet type non-bearing motor, comprise electric machine casing, in electric machine casing, be provided with rotor, stator, it is characterized in that: described stator comprises stator core (5), stator core (5) bilateral symmetry is provided with left pole core (1), right pole core (2), torque winding (6), suspending windings (7) are set in the stator slot of stator core (5), and stator core (5) vertically both sides is provided with the annular stator permanent magnet A(3 of axial magnetized), annular stator permanent magnet B(4);
Described rotor comprises rotor core (9), and rotor core (9) is provided with ring-shaped rotor permanent magnet (8) and the rotating shaft (10) of diametrical magnetization vertically.
The further Technological improvement plan of the utility model is:
Described annular stator permanent magnet A(3), annular stator permanent magnet B(4) provide quiescent biasing magnetic flux (11) for motor, suspending windings (7) is DC power supply, control magnetic flux (12) for motor provides to suspend, rotor is interacted and is produced radial suspension force by quiescent biasing magnetic flux (11), the control magnetic flux (12) that suspends.
The further Technological improvement plan of the utility model is:
Described annular stator permanent magnet A(3), annular stator permanent magnet B(4) and ring-shaped rotor permanent magnet (8) make for rare earth permanent-magnetic material.
The further Technological improvement plan of the utility model is:
Described left pole core (1), right pole core (2), stator core (5) and rotor core (9) are made by permeability magnetic material.
The utility model compared with prior art, there is following obvious advantage, the utility model provides quiescent biasing magnetic flux by the annular stator permanent magnet of two axial magnetizeds, suspending windings is passed through by DC power supply, producing suspends controls magnetic flux, both mutual superpositions, guarantee stator, air gap between rotor is even, realizing rotor stability suspends, suspend and control, torque control is separate, not only can produce larger radial suspension force, and the simple advantage with being easy to realize of control, symmetrical use in pairs in a five degree of freedom suspension support system, can be widely used in flywheel energy storage, various high-speed machine tool spindle motors and canned pump class, centrifuge, compressor, the fields such as high-speed small-size hard disk drive.
Accompanying drawing explanation
Fig. 1 is axial arrangement schematic diagram of the present utility model;
Fig. 2 is that the utility model winding is arranged and radial magnetic circuit schematic diagram.
Embodiment
As shown in Figure 1, 2, the utility model comprises electric machine casing, in electric machine casing, be provided with rotor, stator, described stator comprises stator core 5, stator core 5 bilateral symmetry are provided with left pole core 1, right pole core 2, and torque winding 6, suspending windings 7 are set in the stator slot of stator core 5, and torque winding 6 is positioned at stator slot skin, suspending windings 7 is positioned at stator slot internal layer, and stator core 5 vertically both sides is provided with annular stator permanent magnet A3, the annular stator permanent magnet B4 of axial magnetized, rotor comprises rotor core 9, and rotor core 9 is provided with ring-shaped rotor permanent magnet 8 and the rotating shaft 10 of diametrical magnetization vertically, annular stator permanent magnet A3, annular stator permanent magnet B4 provides quiescent biasing magnetic flux 11 for motor, quiescent biasing magnetic flux 11 magnetic circuits are: magnetic flux is from annular stator permanent magnet A3 or the annular stator permanent magnet B4N utmost point, by left pole core 1 or right pole core 2, air gap, rotor core (9), ring-shaped rotor permanent magnet 8, air gap, annular stator permanent magnet A3 or the annular stator permanent magnet B4S utmost point are got back in stator core 5, suspending windings 7 is DC power supply, for providing to suspend, motor controls magnetic flux 12, the magnetic circuit that suspending windings 7 produces the control magnetic flux 12 that suspends is: motor upside stator core 5, motor upside air gap, rotor, motor downside air gap, motor downside stator core 5, pass through again motor stator yoke, form closed-loop path, rotor is by quiescent biasing magnetic flux 11, suspend and control magnetic flux 12 interaction generation radial suspension forces, annular stator permanent magnet A3, annular stator permanent magnet B4 and ring-shaped rotor permanent magnet 8 adopt rare-earth permanent magnet or the ferrite permanent magnet that magnetic property is good to make, and torque winding 6 and suspending windings 7 all adopt invades paint after the good solenoid coiling of conduction and dry and form, left pole core 1, right pole core 2, stator core 5 and rotor core 9 are made by permeability magnetic material.
As shown in Figure 2, stator slot is outer for torque winding 6, arranges identical with common permagnetic synchronous motor; Suspending windings 7 is divided into x direction control winding and winding is controlled in the suspension of y direction, and x direction control winding comprises winding 1,2,3 and winding 7,8,9, and wherein winding 1,7 is in series, and 2,8 are in series, and 3,9 are in series, and then compose in parallel x direction control winding; The suspension of y direction is controlled winding and is comprised winding 4,5,6 and winding 10,11,12, and wherein winding 4,10 is in series, and 5,11 are in series, and 6,12 are in series, and then compose in parallel y direction control winding.
The utility model does not relate to partly all prior aries that maybe can adopt same as the prior art to be realized.
Claims (4)
1. two-freedom stator permanent magnet biasing permanent magnet type non-bearing motor, comprise electric machine casing, in electric machine casing, be provided with rotor, stator, it is characterized in that: described stator comprises stator core (5), stator core (5) bilateral symmetry is provided with left pole core (1), right pole core (2), torque winding (6), suspending windings (7) are set in the stator slot of stator core (5), and stator core (5) vertically both sides is provided with the annular stator permanent magnet A(3 of axial magnetized), annular stator permanent magnet B(4);
Described rotor comprises rotor core (9), and rotor core (9) is provided with ring-shaped rotor permanent magnet (8) and the rotating shaft (10) of diametrical magnetization vertically.
2. two-freedom stator permanent magnet biasing permanent magnet type non-bearing motor according to claim 1, it is characterized in that: described annular stator permanent magnet A(3), annular stator permanent magnet B(4) provide quiescent biasing magnetic flux (11) for motor, suspending windings (7) is DC power supply, control magnetic flux (12) for motor provides to suspend, rotor is interacted and is produced radial suspension force by quiescent biasing magnetic flux (11), the control magnetic flux (12) that suspends.
3. two-freedom stator permanent magnet according to claim 1 and 2 biasing permanent magnet type non-bearing motor, is characterized in that: described annular stator permanent magnet A(3), annular stator permanent magnet B(4) and ring-shaped rotor permanent magnet (8) make for rare earth permanent-magnetic material.
4. two-freedom stator permanent magnet biasing permanent magnet type non-bearing motor according to claim 1 and 2, is characterized in that: described left pole core (1), right pole core (2), stator core (5) and rotor core (9) are made by permeability magnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320861561.1U CN203617799U (en) | 2013-12-25 | 2013-12-25 | Double-DOF (degree of freedom) stator permanent magnet biased permanent magnet type bearingless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320861561.1U CN203617799U (en) | 2013-12-25 | 2013-12-25 | Double-DOF (degree of freedom) stator permanent magnet biased permanent magnet type bearingless motor |
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| Publication Number | Publication Date |
|---|---|
| CN203617799U true CN203617799U (en) | 2014-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320861561.1U Expired - Lifetime CN203617799U (en) | 2013-12-25 | 2013-12-25 | Double-DOF (degree of freedom) stator permanent magnet biased permanent magnet type bearingless motor |
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| Country | Link |
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| CN (1) | CN203617799U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683571A (en) * | 2013-12-25 | 2014-03-26 | 淮阴工学院 | Two-degree-of-freedom stator permanent magnet biased permanent magnet bearingless motor |
| CN105656228A (en) * | 2016-01-25 | 2016-06-08 | 江苏大学 | Transverse flux permanent magnet motor |
| CN108123562A (en) * | 2017-12-19 | 2018-06-05 | 河北师范大学 | A kind of bearing-free permanent magnet synchronous motor |
| CN108365778A (en) * | 2018-02-26 | 2018-08-03 | 江苏大学 | A kind of flying wheel battery four-degree-of-freedom permanent-magnetic electric machine with bearing |
| CN108847725A (en) * | 2018-06-30 | 2018-11-20 | 淮阴工学院 | A kind of stator permanent-magnet sheet type bearing-free switch reluctance motor |
| CN111022498A (en) * | 2019-12-31 | 2020-04-17 | 淮阴工学院 | Radial mixed magnetic bearing without winding |
| CN116658520A (en) * | 2023-05-05 | 2023-08-29 | 淮阴工学院 | Outer rotor radial six-pole three-degree-of-freedom alternating current-direct current hybrid magnetic bearing and parameter design method |
-
2013
- 2013-12-25 CN CN201320861561.1U patent/CN203617799U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683571B (en) * | 2013-12-25 | 2015-11-04 | 淮阴工学院 | Two degrees of freedom stator permanent magnet bias permanent magnet bearingless motor |
| CN103683571A (en) * | 2013-12-25 | 2014-03-26 | 淮阴工学院 | Two-degree-of-freedom stator permanent magnet biased permanent magnet bearingless motor |
| CN105656228B (en) * | 2016-01-25 | 2018-10-09 | 江苏大学 | A kind of transverse flux permanent magnetic motor |
| CN105656228A (en) * | 2016-01-25 | 2016-06-08 | 江苏大学 | Transverse flux permanent magnet motor |
| CN108123562B (en) * | 2017-12-19 | 2021-04-16 | 河北师范大学 | A bearingless permanent magnet synchronous motor |
| CN108123562A (en) * | 2017-12-19 | 2018-06-05 | 河北师范大学 | A kind of bearing-free permanent magnet synchronous motor |
| CN108365778A (en) * | 2018-02-26 | 2018-08-03 | 江苏大学 | A kind of flying wheel battery four-degree-of-freedom permanent-magnetic electric machine with bearing |
| CN108365778B (en) * | 2018-02-26 | 2019-08-27 | 江苏大学 | A four-degree-of-freedom bearingless permanent magnet motor for a flywheel battery |
| CN108847725A (en) * | 2018-06-30 | 2018-11-20 | 淮阴工学院 | A kind of stator permanent-magnet sheet type bearing-free switch reluctance motor |
| CN111022498A (en) * | 2019-12-31 | 2020-04-17 | 淮阴工学院 | Radial mixed magnetic bearing without winding |
| CN111022498B (en) * | 2019-12-31 | 2023-09-29 | 淮阴工学院 | Radial winding-free hybrid magnetic bearing |
| CN116658520A (en) * | 2023-05-05 | 2023-08-29 | 淮阴工学院 | Outer rotor radial six-pole three-degree-of-freedom alternating current-direct current hybrid magnetic bearing and parameter design method |
| CN116658520B (en) * | 2023-05-05 | 2024-06-11 | 淮阴工学院 | An outer rotor radial six-pole three-degree-of-freedom AC/DC hybrid magnetic bearing and parameter design method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140528 Effective date of abandoning: 20151104 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |