CN102891636A - Magnetic suspension motor capable of reducing leakage flux - Google Patents
Magnetic suspension motor capable of reducing leakage flux Download PDFInfo
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- CN102891636A CN102891636A CN 201110204260 CN201110204260A CN102891636A CN 102891636 A CN102891636 A CN 102891636A CN 201110204260 CN201110204260 CN 201110204260 CN 201110204260 A CN201110204260 A CN 201110204260A CN 102891636 A CN102891636 A CN 102891636A
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- core
- stator
- magnetic
- suspension motor
- magnetic core
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Abstract
The invention discloses a magnetic suspension motor capable of reducing leakage flux; the magnetic suspension motor comprises a stator and a rotator which are matched with each other; the stator and the rotator respectively comprise a stator magnetic core and a rotator magnetic core; the stator magnetic core consists of an outer cylinder and an inner cylinder which are embedded and sleeved coaxially, wherein one end of the outer cylinder and one end of the inner cylinder are mutually connected by a ring-shaped base plate; the rotator magnetic core is of a circular ring plate shape; a projector of the rotator magnetic core on the stator magnetic core along an axis direction is located between the outer cylinder and the inner cylinder of the stator magnetic core. When the stator magnetic core and the rotator magnetic core in the magnetic suspension motor disclosed by the invention are paired to work, a closed-ring magnetic circuit is formed, and the formed magnetic circuit is short and also is low in leakage flux.
Description
Technical field
The present invention relates to a kind of magnetic suspension motor, relate in particular to stator core and rotor magnetic core in a kind of magnetic suspension motor.
Background technology
Magnetic suspension motor (magnetic floats motor, magnetic motor) is a kind of motor of new structure, and motor itself both can produce torque, can produce again the magnetic suspension force of support rotor, makes rotor can realize machinery-free friction rotation.
In the magnetic suspension motor with the rotor that cooperatively interacts and stator, stator generally comprises stator core and winding, is formed by sintering magnetic materials as the stator core of winding support component, winding coil is wound on the stator core.Also formed by sintering magnetic materials and the agent structure of rotor is rotor magnetic core, match with stator core on the structure.
In the magnetic suspension motor, the shape of stator core and rotor magnetic core has certain impact to the performance of magnetic suspension motor, all have certain leakage field in more existing magnetic suspension motors, so people also improve the shape of stator core and rotor magnetic core always, reducing leakage field with expectation.
Summary of the invention
The invention provides a kind of magnetic suspension motor, the improvement by stator core and rotor magnetic core structure has reduced leakage field.
A kind of magnetic suspension motor that reduces leakage field, the stator and the rotor that comprise cooperation, described stator and rotor have respectively stator core, rotor magnetic core, described stator core is made of coaxial nested urceolus and inner core, one end of wherein said urceolus and inner core interconnects by the base plate of annular, described rotor magnetic core is Circular Plate shape, described rotor magnetic core along axis direction between the urceolus and inner core of the projection on the stator core at stator core.
Base plate and the inner core of annular are structure as a whole in the described stator core.
Symmetrically on the base plate of described annular be distributed with two fairleads, the lead-in wire of winding goes out to draw stator core from this fairlead.
Described fairlead is near the inwall of urceolus.
Stator core and rotor magnetic core form by sintering magnetic materials, and magnetic material itself and moulding process all can adopt prior art.
On the outer wall of inner core, the inwall of inner core defines columniform passage to the stator winding of magnetic suspension motor around the home, and machine shaft passes the inner circle of this columniform passage and rotor magnetic core, and rotor can be suspended and rotation in the axial of stator.
When stator core and rotor magnetic core pairing work, consist of the closed loop magnetic circuit in the magnetic suspension motor of the present invention, the length of magnetic path of formation is shorter, and leakage field is also less.
Description of drawings
Fig. 1 is the structural representation of stator core in the magnetic suspension motor of the present invention;
Fig. 2 is the structural representation of magnetic suspension motor rotor magnetic core of the present invention;
Fig. 3 is the schematic cross-section after stator core and rotor magnetic core cooperate.
Embodiment
Referring to accompanying drawing, the stator core in the magnetic suspension motor of the present invention is made of coaxial nested urceolus 1 and inner core 8, and wherein an end of urceolus 1 and inner core 8 interconnects by the base plate 2 of annular, and base plate 2 is structure as a whole with inner core 1.
Rotor magnetic core 4 in the magnetic suspension motor of the present invention is Circular Plate shape, rotor magnetic core along axis direction between the urceolus 1 and inner core 8 of the projection on the stator core at stator core.
Symmetrically on the base plate 2 be distributed with two fairleads 3,3 position of fairlead is near the inwall of urceolus 1.When laying winding 5, winding 5 is around the home on the outer wall of inner core 8.
The inwall of inner core 8 defines columniform passage 6, and the inner circle 7 of rotor magnetic core is corresponding with passage 6 positions, and the inner circle 7 of passage 6 and rotor magnetic core is passed in the magnetic suspension motor rotating shaft, and rotor can be suspended and rotation in the axial of stator.
Stator core, rotor magnetic core and winding have only been illustrated among the figure, the miscellaneous part of magnetic suspension motor can utilize prior art, when the stator core of magnetic suspension motor of the present invention and rotor magnetic core pairing work, consists of the closed loop magnetic circuit, the length of magnetic path that forms is shorter, and leakage field is also less.
Claims (4)
1. magnetic suspension motor that reduces leakage field, the stator and the rotor that comprise cooperation, described stator and rotor have respectively stator core, rotor magnetic core, it is characterized in that, described stator core is made of coaxial nested urceolus and inner core, one end of wherein said urceolus and inner core interconnects by the base plate of annular, and described rotor magnetic core is Circular Plate shape, described rotor magnetic core along axis direction between the urceolus and inner core of the projection on the stator core at stator core.
2. the magnetic suspension motor that reduces leakage field as claimed in claim 1 is characterized in that, base plate and the inner core of annular are structure as a whole in the described stator core.
3. the magnetic suspension motor that reduces leakage field as claimed in claim 2 is characterized in that, the stator winding of described magnetic suspension motor is around the home on the outer wall of inner core.
4. the magnetic suspension motor that reduces leakage field as claimed in claim 3 is characterized in that, symmetrically on the base plate of described annular is distributed with two fairleads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110204260 CN102891636A (en) | 2011-07-21 | 2011-07-21 | Magnetic suspension motor capable of reducing leakage flux |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110204260 CN102891636A (en) | 2011-07-21 | 2011-07-21 | Magnetic suspension motor capable of reducing leakage flux |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102891636A true CN102891636A (en) | 2013-01-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110204260 Pending CN102891636A (en) | 2011-07-21 | 2011-07-21 | Magnetic suspension motor capable of reducing leakage flux |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102891636A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056574A (en) * | 2019-04-17 | 2019-07-26 | 山东天瑞重工有限公司 | A kind of magnetic bearing of high speed magnetic suspension motor |
| WO2022088698A1 (en) * | 2020-10-29 | 2022-05-05 | 苏州心擎医疗技术有限公司 | Magnetic levitation motor and magnetic levitation blood pump |
-
2011
- 2011-07-21 CN CN 201110204260 patent/CN102891636A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056574A (en) * | 2019-04-17 | 2019-07-26 | 山东天瑞重工有限公司 | A kind of magnetic bearing of high speed magnetic suspension motor |
| WO2022088698A1 (en) * | 2020-10-29 | 2022-05-05 | 苏州心擎医疗技术有限公司 | Magnetic levitation motor and magnetic levitation blood pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130123 |