CN107659102A - A kind of Circular Winding birotor permanent magnetic synchronous motor - Google Patents
A kind of Circular Winding birotor permanent magnetic synchronous motor Download PDFInfo
- Publication number
- CN107659102A CN107659102A CN201710964915.8A CN201710964915A CN107659102A CN 107659102 A CN107659102 A CN 107659102A CN 201710964915 A CN201710964915 A CN 201710964915A CN 107659102 A CN107659102 A CN 107659102A
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- Prior art keywords
- stator
- synchronous motor
- permanent magnetic
- winding
- magnetic synchronous
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
- H02K21/227—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos having an annular armature coil
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/02—Machines with one stator and two or more rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/46—Motors having additional short-circuited winding for starting as an asynchronous motor
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a kind of Circular Winding birotor permanent magnetic synchronous motor and self-starting Circular Winding birotor permanent magnetic synchronous motor.The permagnetic synchronous motor includes：Stator core, the element of winding, outer rotor and internal rotor composition.A kind of its internal rotor of self-starting Circular Winding birotor permanent magnetic synchronous motor is cage rotor.The Circular Winding birotor permanent magnetic synchronous motor of the present invention has the advantages that simple in construction, perfect heat-dissipating, efficiency and power factor are high, and the winding mode reduces winding overhang length, reduces copper loss, improves around line use ratio.The beneficial effect of self-starting Circular Winding permagnetic synchronous motor provided by the invention is to eliminate frequency-converter device, it is possible to achieve the self-starting of motor, is effectively reduced the overall volume and manufacturing cost of motor.
Description
Technical field
The present invention relates to motor device technical field, more particularly to a kind of Circular Winding birotor permanent magnetic synchronous motor and from
Start Circular Winding birotor permanent magnetic synchronous motor.
Background technology
With the development of science and technology, modern industrial technology increasingly develops towards intelligentized direction, and people are for motor
Performance requirement also constantly improving.For in general birotor permanent magnetic synchronous motor, its stator winding generally use
Two kinds of traditional approach of stacked winding and chain type winding.The shortcomings that traditional winding method, is long end and winding connecting line,
So that the tip lengths increase of machine winding, overall volume increase；Each phase winding end turn intersects, each phase winding it
Between insulating process it is more complicated, add difficulty to heat dissipation technology；Each stator winding embed two neighboring stator tooth it
Between stator slot in, groove inner wire is absolutely unsafe, in fact it could happen that the phenomenon that conductor skids off.Must be reserved in traditional winding process around
The space of line mechanism, cause copper factor low, and then make the overall performance of motor low.
China Patent Publication No. discloses a kind of exist for CN205389143U " a kind of permanent-magnetic synchronous motor stator structure "
A pair of shunting tooth is set inside each stator tooth, and shunts the permanent magnet motor stator that separation layer between tooth and stator tooth be present,
Effectively reduce permanent magnet excitation leakage field, so as to realize the purpose of the weak magnetic speed-up when base speed operates above, but its winding overhang compared with
It is long, and individual phase around insulating process it is complex, add difficulty to heat dissipation technology.
" a kind of new-energy automobile permagnetic synchronous motor " that China Patent Publication No. is CN205509727U is using in electric machine casing
On by fin, water circulation system and the self cooling combination of fan, improve the integral heat sink performance of motor, accelerate the radiating effect of motor
Rate, but because the structure of the motor is more complicated, heat abstractor influence and little on the temperature of stator interior.
The content of the invention
For above-mentioned weak point, the invention aims to provide a kind of Circular Winding birotor permanent magnetic synchronous motor.
The motor has the advantages that small volume, high efficiency, power factor height, perfect heat-dissipating.
Present invention also offers a kind of self-starting Circular Winding permagnetic synchronous motor.The motor eliminates converter plant, can
To realize the self-starting of motor, the volume and manufacturing cost of motor are effectively reduced.
A kind of Circular Winding birotor permanent magnetic synchronous motor, mainly including stator core, the element of winding, outer rotor and interior turn
Son.Two sides is provided with the stator slot that several are located at same radial direction inside and outside the stator core；The stator slot is along stator inner surface
The circumferential direction of circumference and outer surface circumference is uniformly distributed；The stator core between internal rotor and outer rotor, and with it is inside and outside
Certain air gap is left between rotor；Embedded positioned at two stator slots of same radial direction and be placed with the same element of winding；It is described
Internal rotor is located inside outer rotor, and is rotated coaxially together with outer rotor.
Preferably, stator is convexed to form between two circumferentially adjacent stator slots of the stator core outer surface
Tooth；Stator tooth under convexing to form between two circumferentially adjacent stator slots of the inner surface of the stator core.
Preferably, both ends are circumferentially protruded at the top of the upper stator tooth, form stator pole shoes.
Preferably, the thickness of the stator pole shoes is gradually increased by pole tip to the upper stator tooth.
A kind of self-starting Circular Winding birotor permanent magnetic synchronous motor, including stator core described above, the element of winding,
Outer rotor and internal rotor.Two sides is provided with the stator slot that several are located at same radial direction inside and outside the stator core；It is described
Stator slot is uniformly distributed along stator inner surface circumference and outer surface circumference；Circumferentially adjacent two in stator core outer surface
Stator tooth is convexed to form between stator slot, is convexed to form down between two circumferentially adjacent stator slots of stator core inner surface
Stator tooth, and the top both ends of upper stator tooth are circumferentially protruded, and form stator pole shoes；The thickness of the stator pole shoes by pole tip extremely
The upper stator tooth gradually increases；The stator core is arranged between inner and outer rotors, and one is left between inner and outer rotors
Fixed air gap；Embedded positioned at the stator slot of same radial direction and be placed with the same element of winding；The internal rotor is located at outer rotor
Inside, and rotated coaxially with outer rotor；The internal rotor is cage rotor, including multiple squirrel-cage bars, left end ring and right-hand member
Ring；The squirrel-cage bar is circumferentially uniformly arranged between left end ring and right-hand member ring.
The beneficial effect of the invention is：1st, Circular Winding birotor permanent magnetic synchronous motor structure is simple, radiating is convenient, defeated
Go out that torque is big, efficiency high.
2nd, self-starting Circular Winding birotor permanent magnetic synchronous motor eliminates converter plant, can realize opening certainly for motor
It is dynamic, reduce the overall volume and manufacturing cost of motor.
Brief description of the drawings
Fig. 1 is the overall structure diagram of Circular Winding birotor permanent magnetic synchronous motor of the present invention.
Fig. 2 is the full sectional view of Circular Winding birotor permanent magnetic synchronous motor of the present invention.
Fig. 3 is the stator structure schematic diagram of Circular Winding birotor permanent magnetic synchronous motor of the present invention
Fig. 4 is the overall structure diagram of self-starting Circular Winding birotor permanent magnetic synchronous motor of the present invention.
Fig. 5 is the full sectional view of self-starting Circular Winding birotor permanent magnetic synchronous motor of the present invention
Fig. 6 is the inner rotor core schematic diagram of self-starting Circular Winding birotor permanent magnetic synchronous motor of the present invention
It is labeled as in figure：1st, stator, 2, stator core, 3, the element of winding, 4, outer rotor, 5, internal rotor, 6, air gap, 7, stator
Tooth, 8, stator slot, 9, pole shoe, 10, left end ring, 11, right-hand member ring, 12, squirrel-cage bar.
Embodiment
Embodiment is illustrated with reference to accompanying drawing.
Obviously, creative work premise is not being made based on the embodiment in the present invention, those of ordinary skill in the art
Under to all any modification, equivalent and improvement for being made etc., should be included in the scope of the protection.
Embodiment 1
Circular Winding birotor permanent magnetic synchronous motor as Figure 1-3, mainly include stator core 2, the element of winding 3, turn outside
Son 4 and internal rotor 5.Two sides is provided with the stator slot 8 that several are located at same radial direction inside and outside the stator core 2；The stator slot 8
It is uniformly distributed along the circumferential direction of stator inner surface circumference and outer surface circumference；The stator core 2 is internal rotor 5 and outer rotor
Between 4, and certain air gap 6 is left between inner and outer rotors；Positioned at two stator slots 8 of same radial direction it is embedded be placed with it is same
The individual element of winding 3；The internal rotor 5 is located inside outer rotor 4, and is rotated coaxially together with outer rotor 4.
Stator tooth 701 is convexed to form between two circumferentially adjacent stator slots 8 of the outer surface of stator core 2；
Stator tooth 702 under convexing to form between two circumferentially adjacent stator slots of the inner surface of the stator core 2.
The top both ends of upper stator tooth 702 are circumferentially protruded, and form stator pole shoes 9.
The thickness of the stator pole shoes 9 is gradually increased by pole tip to the upper stator tooth 701.
The element of winding is to be uniformly and symmetrically distributed in stator core, and its operation principle is：
Symmetrical three-phase alternating current is passed to the element of winding, according to the right-hand rule, stator will produce one and be offset with synchronous rotational speed
Rotating excitation field, its main flux is divided into two-way and enters rotor core across inside and outside air gap, when motor stabilizing is run, turn stator with
Rotor keeps geo-stationary between the two, by interacting and producing electromagnetic torque.
Embodiment 2
A kind of self-starting Circular Winding birotor permanent magnetic synchronous motor as seen in figures 3-6, including described stator core 2, around
Set of pieces 3, outer rotor 4 and internal rotor 5.Two sides is provided with several and is located at same radial direction inside and outside the stator core 2
Stator slot 8；The stator slot 8 is uniformly distributed along stator inner surface circumference and outer surface circumference；The outer surface edge of stator core 2
Convex to form stator tooth 701 between two circumferentially-adjacent stator slots, stator core inner surface circumferentially adjacent two is fixed
Lower stator tooth 702 is convexed to form between pilot trench, and the top both ends of upper stator tooth 701 are circumferentially protruded, and form stator pole shoes 9；
The thickness of the stator pole shoes 9 is gradually increased by pole tip to the upper stator tooth；The stator core 2 be arranged on inner and outer rotors it
Between, and certain air gap 6 is left between inner and outer rotors；Positioned at the stator slot 8 of same radial direction it is embedded be placed with it is same
The element of winding 3；The internal rotor 5 is located at the inside of outer rotor 4, and is rotated coaxially with outer rotor 4；The internal rotor 5 is mouse cage
Formula rotor, including multiple squirrel-cage bars 12, left end ring 10 and right-hand member ring 11；The squirrel-cage bar 12 is circumferentially uniformly arranged on left end
Between ring 10 and right-hand member ring 11.
Symmetrical three-phase current is passed to the element of winding, rotating excitation field is produced, using electromagnetic induction theorem, in cage rotor
Induced current in winding, producing electromagnetic torque by air-gap field and rotor inductive currentses interaction rotates cage rotor,
When cage rotor reaches close to synchronous rotational speed, travelling-magnetic-field caused by stator reaches synchronous with outer rotor interaction and turned
Speed, stator rotating excitation field keeps geo-stationary with outer rotor main frame magnetic field, by interacting and producing electromagnetic torque.
The stator magnetic circuit feature of this structure is to make the axial length needed for stator yoke shorter, is advantageous to improve motor
Power density；Circular Winding makes two faces of stator be working face, improves the utilization rate of winding；Because the winding overhang is tight
Patch is unshakable in one's determination, and end is greatly shortened, and the resistance and leakage reactance of winding are small, reduces end copper loss and end wastes, improve motor
Efficiency and power factor.
Claims (5)
- A kind of 1. Circular Winding birotor permanent magnetic synchronous motor, it is characterised in that：Including stator core, the element of winding, outer rotor And internal rotor；Two sides is provided with the stator slot that several are located at same radial direction inside and outside the stator core；The stator slot edge Circumferentially it is uniformly distributed；The stator core is arranged between outer rotor and internal rotor, and is left necessarily between inner and outer rotors Air gap；Embedded positioned at two stator slots of same radial direction and be placed with the same element of winding；The internal rotor turns positioned at outer It is sub internal, and rotated coaxially with outer rotor.
- 2. Circular Winding birotor permanent magnetic synchronous motor according to claim 1, it is characterised in that：Stator core outer surface Stator tooth is convexed to form between two circumferentially adjacent stator slots, and stator core inner surface circumferentially adjacent two is fixed Stator tooth under convexing to form between pilot trench, and the both ends at the top of the upper stator tooth are circumferentially protruded, and form stator pole shoes.
- 3. Circular Winding birotor permanent magnetic synchronous motor according to claim 2, it is characterised in that：The thickness of the pole shoe Gradually increased by its pole tip to the upper stator tooth.
- 4. a kind of self-starting Circular Winding birotor permanent magnetic synchronous motor, including as described in claim 1-3 is any, its feature exists In：The internal rotor is cage rotor.
- 5. self-starting Circular Winding birotor permanent magnetic synchronous motor according to claim 4, it is characterised in that：Turn in described Attached bag includes multiple cage bars, left end ring and right-hand member ring, and the cage bar is circumferentially uniformly between two end ring in left and right.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710964915.8A CN107659102A (en) | 2017-10-17 | 2017-10-17 | A kind of Circular Winding birotor permanent magnetic synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710964915.8A CN107659102A (en) | 2017-10-17 | 2017-10-17 | A kind of Circular Winding birotor permanent magnetic synchronous motor |
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| Publication Number | Publication Date |
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| CN107659102A true CN107659102A (en) | 2018-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710964915.8A Pending CN107659102A (en) | 2017-10-17 | 2017-10-17 | A kind of Circular Winding birotor permanent magnetic synchronous motor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108512380A (en) * | 2018-05-10 | 2018-09-07 | 哈尔滨理工大学 | A kind of Circular Winding birotor permanent magnetic synchronous motor with electromagnetism linkage |
| CN109660098A (en) * | 2019-02-28 | 2019-04-19 | 郑州大学 | A kind of covert two-rotor axial magnetic flux Circular Winding synchronous motor of pole-changing |
| CN113162350A (en) * | 2021-04-15 | 2021-07-23 | 深圳绿食宝科技有限公司 | High torque motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101710769A (en) * | 2009-12-16 | 2010-05-19 | 南京航空航天大学 | Inner-outer birotor doubly salient brushless direct current motor |
| CN101964571A (en) * | 2010-10-27 | 2011-02-02 | 南京航空航天大学 | Inner and outer double-rotor hybrid excitation doubly salient pole machine |
| WO2011083530A1 (en) * | 2010-01-06 | 2011-07-14 | 株式会社神戸製鋼所 | Axial gap type brushless motor |
| CN104184284A (en) * | 2014-01-25 | 2014-12-03 | 赵晓东 | Double-magnetic-circuit asynchronous-starting permanent magnet synchronous motor rotor |
| CN106787570A (en) * | 2016-12-13 | 2017-05-31 | 冶金自动化研究设计院 | A kind of inner-outer birotor asynchronous starting permagnetic synchronous motor |
-
2017
- 2017-10-17 CN CN201710964915.8A patent/CN107659102A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101710769A (en) * | 2009-12-16 | 2010-05-19 | 南京航空航天大学 | Inner-outer birotor doubly salient brushless direct current motor |
| WO2011083530A1 (en) * | 2010-01-06 | 2011-07-14 | 株式会社神戸製鋼所 | Axial gap type brushless motor |
| CN101964571A (en) * | 2010-10-27 | 2011-02-02 | 南京航空航天大学 | Inner and outer double-rotor hybrid excitation doubly salient pole machine |
| CN104184284A (en) * | 2014-01-25 | 2014-12-03 | 赵晓东 | Double-magnetic-circuit asynchronous-starting permanent magnet synchronous motor rotor |
| CN106787570A (en) * | 2016-12-13 | 2017-05-31 | 冶金自动化研究设计院 | A kind of inner-outer birotor asynchronous starting permagnetic synchronous motor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108512380A (en) * | 2018-05-10 | 2018-09-07 | 哈尔滨理工大学 | A kind of Circular Winding birotor permanent magnetic synchronous motor with electromagnetism linkage |
| CN108512380B (en) * | 2018-05-10 | 2024-04-12 | 哈尔滨理工大学 | Annular winding double-rotor permanent magnet synchronous motor with electromagnetic linkage device |
| CN109660098A (en) * | 2019-02-28 | 2019-04-19 | 郑州大学 | A kind of covert two-rotor axial magnetic flux Circular Winding synchronous motor of pole-changing |
| CN113162350A (en) * | 2021-04-15 | 2021-07-23 | 深圳绿食宝科技有限公司 | High torque motor |
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