CN106533106A - Permanent magnet motor and electric tool using same - Google Patents
Permanent magnet motor and electric tool using same Download PDFInfo
- Publication number
- CN106533106A CN106533106A CN201610416278.6A CN201610416278A CN106533106A CN 106533106 A CN106533106 A CN 106533106A CN 201610416278 A CN201610416278 A CN 201610416278A CN 106533106 A CN106533106 A CN 106533106A
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- Prior art keywords
- magnetic core
- magnetic
- magneto
- permanent magnet
- equal
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- 238000004804 winding Methods 0.000 claims abstract description 13
- 230000002093 peripheral Effects 0.000 claims description 15
- 230000000875 corresponding Effects 0.000 claims description 7
- 241000763859 Dyckia brevifolia Species 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 2
- 230000003442 weekly Effects 0.000 claims 1
- 230000001939 inductive effect Effects 0.000 abstract 1
- 230000005284 excitation Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000005755 formation reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000005301 magnetic effect Effects 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
Classifications
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
- H02K1/2766—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect
- H02K1/2773—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect consisting of tangentially magnetized radial magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Abstract
The invention provides a permanent magnet motor and an electric tool using the same. The permanent magnet motor comprises a stator and a rotor which can mounted to the stator in a rotatable manner, wherein one of the stator and the rotor comprises an annular first magnetic core and a plurality of permanent magnets embedded in the first magnetic core, and the plurality of permanent magnets are distributed along the circumferential direction of the first magnetic core, so that a plurality of magnetic poles with alternately distributed polarities are formed on the inner circumferential surface of the first magnetic core; the other of the stator and the rotor comprises a second magnetic core and a winding, the second magnetic core is accommodated in the first magnetic core and comprises a plurality of teeth extending towards the first magnetic core, and the winding is wound on the teeth; and the first magnetic core can serve as the motor rotor, and the second magnetic core can serve as the motor stator. By embedding the permanent magnets into the magnetic core, the permanent magnets are prevented from falling off; and the permanent magnets and the magnetic core form more intensive magnetic poles after mutual induction, thereby improving power density. The permanent magnet motor is suitable for a wide range of application environments, including but not limited to electric saws.
Description
Technical field
The present invention relates to motor, more particularly, to a kind of magneto, the magneto is particularly suited for the electricity such as electric saw
In power driven tools.
Background technology
Traditional magneto includes stator and rotor.Stator includes the shell of annular, is installed to shell inner peripheral surface
Some permanent magnets, the end cap for being installed to shell shaft end.Rotor includes rotating shaft, the rotor core for being fixed to rotating shaft, coiling to rotor
Winding on the tooth of iron core.The end cap of stator installs bearing to be used for supporting the rotating shaft of rotor, rotor is turned relative to stator
It is dynamic.One of the conventional motors has the disadvantage that power density is low, and permanent magnet is possible to come off so as to cause electrical fault.Additionally, using
Family also wants to motor with bigger power density.
The content of the invention
For overcoming the shortcoming of prior art, one aspect of the present invention to provide a kind of magneto and be provided with the permanent magnetism
The electric tool of motor, the magneto include stator and are pivotally mounted to the rotor of stator.The stator and rotor
One of which some permanent magnets for including in the first magnetic core of annular, embedded first magnetic core, some permanent magnets are along described
Circumferentially distributed, some magnetic poles for arranging the first magnetic core inner peripheral surface formation alternating polarity of the first magnetic core.The stator
Include the second magnetic core and winding with the another one of rotor, second magnetic core is contained in first magnetic core and with towards first
Some teeth that magnetic core stretches out, the winding technique is in the tooth.
Magneto that the present invention is provided, permanent magnet is embedded in magnetic core, it is to avoid permanent magnet comes off.Also, permanent magnet
Higher magnetic pole is formed after being sensed with magnetic core mutually, so as to improve power density.This kind of magneto is suitable for various electronic
Instrument, including but not limited to electric saw.
In order to be able to be further understood that feature and the technology contents of the present invention, refer to below in connection with the detailed of the present invention
Illustrate and accompanying drawing, but institute's accompanying drawing only provides with reference to and illustrates to use, not for being any limitation as to the present invention.
Description of the drawings
Fig. 1 is a kind of structured flowchart of electric tool that the present invention is provided；
Fig. 2 is the schematic cross-section of the magneto that the first embodiment of magneto of the present invention is provided；
Fig. 3 is the schematic cross-section of the magneto that the second embodiment of magneto of the present invention is provided.
Fig. 4 is the schematic partial cross-sectional view of the magneto that the 3rd embodiment of magneto of the present invention is provided.
Fig. 5 is a kind of schematic diagram of mode that magneto of the present invention realizes non-homogeneous air gap.
Fig. 6 is the schematic diagram of the another way that magneto of the present invention realizes non-homogeneous air gap.
Specific embodiment
With reference to Fig. 1, the electric tool that the present invention is provided is an electric saw, and which includes magneto 20 and saw blade 10, Permanent Magnet and Electric
Machine 20 drives saw blade 10 to move by actuating device such as deceleration device (not shown) etc..Because the present invention's is mainly improved by electricity
Machine, electric saw can adopt traditional electric saw, therefore the present invention no longer describes the concrete structure of electric saw.
With reference to Fig. 2, in the first embodiment of magneto of the present invention, magneto 20 includes excitation part 30 and armature
Part 50.Excitation division point includes annular first magnetic core 31 and some permanent magnets 35 in motor axially embedded first magnetic core 31.
Armature portion 50 includes the second magnetic core 53.Second magnetic core 53 is provided with some teeth 55.Each tooth 55 is included for for winding winding
Tooth body and it is arranged on the pole shoe of tooth body end.Second magnetic core 53 is contained in the first magnetic core 31.
If the first magnetic core 31 can be formed along motor is axially stacked by dried layer stalloy, every layer of stalloy is designed with permanent magnet peace
Dress hole 33, in order to insert for permanent magnet 35 after stacked.Preferably, each permanent magnet 35 is circular arc, the circular arc
Opening is towards the second magnetic core 53.It is to be appreciated that each permanent magnet 35 can also be tabular, can be uniform thickness or non-
Uniform thickness, in order to be fitted to the first magnetic core 31.Permanent magnet 35 is fitted to inside magnetic core, can avoid or reduce permanent magnet 35
The risk for coming off.
In the first embodiment, each permanent magnet 35 polarizes along its thickness direction.In the present embodiment, every block of permanent magnetism
Body 35 is correspondingly formed a magnetic pole, the opposite polarity of adjacent permanent magnetic poles.Circumference point of some permanent magnets 35 along the first magnetic core 31
Cloth, and the polarity of 35 inner surface of permanent magnet is alternately arranged along the circumference of the first magnetic core 31 in N poles, S poles, so as in the first magnetic core
31 inner peripheral surface forms some N poles being alternately arranged, S poles.It is to be appreciated that in other embodiments, each permanent-magnet pole
Can be made up of polylith permanent magnet.During using embedded structure, motor excitation part 50 can adopt larger sized permanent magnet,
So as to increase the power density of motor, it is possible to increase the effectiveness of performance of motor.
The quantity for differring primarily in that permanent magnet 35 of the magneto provided with reference to Fig. 3, second embodiment of the invention, shape
Shape, arrangement position.Specifically, 35 quantity of permanent magnet being embedded in the first magnetic core 31 is equal to and is formed at 31 inner peripheral surface of the first magnetic core
2 times of number of magnetic poles, form a magnetic pole per 2 permanent magnets in 31 inner peripheral surface of the first magnetic core, two permanent magnets surround V
Shape, the angle theta of V-arrangement are less than or equal to 170 ° more than or equal to 90 °.The second magnetic core 53 of the V-arrangement opening direction, and two permanent magnets
There is identical polarity towards the surface of the second magnetic core 53 such that it is able in will be the first magnetic core 31 corresponding with the V-arrangement opening
Perimeter surface is magnetized into a magnetic pole.The magnetic pole of excitation part is arranged such, with poly- magnetic effect.In order to reach preferably poly- magnetic effect
Fruit rationally utilization space, raising power density are low, and the scope of angle theta is more preferably 120 °≤θ≤170 °, more preferably
120°≤θ≤150°。
Apply in example second, each permanent magnet 35 is tabular.It is to be appreciated that permanent magnet 35 can also be arc, or
The thin ellipse in person's thick middle two ends.
In a second embodiment, the inner peripheral surface per 2 permanent magnets 35 in the first magnetic core 31 forms a magnetic pole；Can manage
Xie Di, in other embodiments, each magnetic pole can be formed by 3 or greater number of permanent magnet.Therefore, it is embedded in the first magnetic core
35 quantity of permanent magnet in 31 is equal to n times of the number of magnetic poles for being formed at 31 inner peripheral surface of the first magnetic core, and n is the integer more than 0.
Referring to Fig. 2 and 3, in above-mentioned first and second embodiment, the inner surface of the first magnetic core 31 is in per adjacent magnetic pole
Between form a groove 37, and form magnetic bridge 38 in corresponding groove 37 so that these magnetic bridges 38 are circumferentially distributed along motor, and often
Individual magnetic bridge 38 is located between corresponding two adjacent poles.Magnetic bridge 38 has very big magnetic resistance, and magnetic flux can be reduced or avoided from this
Place passes through, and promotes the magnetic flux that permanent magnet is produced to enter the second magnetic core 51 as much as possible via the first magnetic core 31, so as to further change
Kind motor performance.
In first and second embodiment, the radial depth of groove 37 accounts for the 1/3 or so of the radial thickness of the first magnetic core 31.
It is to be appreciated that the radial depth of groove 37 as needed, can be arranged on the 1/5 to 2/3 of the radial thickness of the first magnetic core 31
Scope.
In first and second embodiment, groove 37 is along the axially consecutive extension of motor.Alternatively, groove 37 is along motor axial direction
It is discontinuous, i.e. a magnetic bridge is formed along the axially spaced groove of motor by some sections.
Preferably, in the inner peripheral surface of the first magnetic core 31, the region beyond magnetic bridge is all located on same circumference, changes speech
It, the inner surface of the magnetic pole of the first magnetic core 31 is all located on same periphery, thus, the air gap between magnetic pole of the stator and rotor
Thickness is uniform, and such electric machine structure is simple, is easy to processing.
As shown in figure 4, in the third embodiment, the pole shoe of the inner peripheral surface of first magnetic core 31 and the second magnetic core 53
Between can also form non-homogeneous air gap, wherein maximum air gap thickness AmaxWith minimal air gap thickness AminRatio be less than or equal to 4.
Cogging torque can be effectively reduced using non-homogeneous air gap, the purpose of running noise of motor is reduced.It is appreciated that to electricity
Machine has two-way startup ability, can form symmetrical non-homogeneous air gap, i.e., when the magnetic of the pole shoe and the first magnetic core 31 of the second magnetic core 53
Extremely to timing, the air gap is symmetrical with regard to the centrage of the magnetic pole, and the centrage refers to that the circumferential midpoint of the magnetic pole and motor revolve
Turn the line between center.Contrary, if desired motor has unilateral initiative ability, can form asymmetric non-homogeneous air gap.
As shown in figure 5, a kind of mode that the non-homogeneous gas of formation is attacked is the correspondence on the periphery of the inner side of the first magnetic core 31
One end of each magnetic pole or two ends form cutting plane.One is formed between the cutting plane and the centrage of corresponding magnetic pole
Angle β, the scope of the angle β are to be less than or equal to 100 ° more than or equal to 60 °, are preferably greater than less than or equal to equal to 70 °
90°。
As shown in fig. 6, a kind of mode that the non-homogeneous gas of formation is attacked is the one of the outside of each pole shoe in the second magnetic core 53
End or two ends form cutting face.The cutting face can be cambered surface S2, and it is S1 that the middle part on the outside of pole shoe is cambered surface.Cambered surface S1 and arc
Face S2 is tangent and the curvature of cambered surface S1 less than cambered surface S1 curvature.
In above-described embodiment, motor is external-rotor-type brushless electric machine, the first magnetic core 31 and permanent magnet 33 turning as motor
The stator of son, the second magnetic core 53 and winding thereon as motor.It is to be appreciated that the first magnetic core 31 and permanent magnet 33 can also
Stator as motor, and the second magnetic core 53 and winding thereon are also used as the rotor of motor.Now, the motor is interior turn
In the present embodiment, the armature winding can connect into three-phase windings so as to form three phase electric machine to sub-motor.
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (21)
1. a kind of magneto, including stator and the rotor for being pivotally mounted to stator, it is characterised in that：
The one of which of the stator and rotor includes some permanent magnets in the first magnetic core of annular, embedded first magnetic core, institute
Some permanent magnets are stated along the circumferentially distributed of first magnetic core, makes the first magnetic core inner peripheral surface form alternating polarity arrangement
Some magnetic poles；
The another one of the stator and rotor includes the second magnetic core and winding, and second magnetic core is contained in first magnetic core
And with some teeth stretched out towards the first magnetic core, the winding technique is on the tooth.
2. magneto as claimed in claim 1, it is characterised in that first magnetic core and permanent magnet are used as rotor, described
Second magnetic core and winding are used as stator.
3. magneto as claimed in claim 1, it is characterised in that first magnetic core forms some magnetic bridges, described some
Magnetic bridge is circumferentially distributed along motor, and each magnetic bridge is located between corresponding two adjacent poles.
4. magneto as claimed in claim 3, it is characterised in that first magnetic core is corresponding to forming recessed at each magnetic bridge
Groove.
5. magneto as claimed in claim 4, it is characterised in that the groove forms the interior table with first magnetic core
Face, the radial depth of each groove are less than or equal to 2/3 with the ratio of the radial thickness of first magnetic core more than or equal to 0.
6. magneto as claimed in claim 1, it is characterised in that the inner surface of some magnetic poles is located at same circumference
On face.
7. magneto as claimed in claim 1, it is characterised in that the permanent magnet quantity being embedded in first magnetic core is equal to
The quantity of the magnetic pole of the first magnetic core inner peripheral surface is formed at, each permanent magnet forms one in the first magnetic core inner peripheral surface
Individual magnetic pole.
8. magneto as claimed in claim 7, it is characterised in that each permanent magnet is circular arc, the opening of the circular arc
Towards the second magnetic core.
9. magneto as claimed in claim 1, it is characterised in that the permanent magnet quantity being embedded in first magnetic core is equal to
N times of number of magnetic poles of the first magnetic core inner peripheral surface is formed at, wherein n is the integer more than 1；Per n permanent magnet in institute
State the first magnetic core inner peripheral surface and form a magnetic pole.
10. magneto as claimed in claim 9, it is characterised in that each permanent magnet is tabular, arc or thick middle
The thin ellipse in two ends.
11. magnetoes as claimed in claim 10, it is characterised in that per 2 permanent magnets in first magnetic core weekly form
Face forms a magnetic pole, and two permanent magnets surround V-arrangement, and the V-arrangement opening is more than or equal to towards the second magnetic core, the angle theta of V-arrangement
90 ° are less than or equal to 170 °.
12. magnetoes as claimed in claim 11, it is characterised in that the scope of angle theta is 120 °≤θ≤170 °.
13. magnetoes as claimed in claim 12, it is characterised in that the scope of angle theta is 120 °≤θ≤150 °.
14. magnetoes as claimed in claim 1, it is characterised in that the first magnetic core inner peripheral surface and the second magnetic core
Non-homogeneous air gap, wherein maximum air gap thickness A is formed between outer surfacemaxWith minimal air gap thickness AminRatio be less than or equal to
4。
15. magnetoes as claimed in claim 14, it is characterised in that the air gap with regard to the centrage of magnetic pole it is symmetrical or
It is asymmetric.
16. magnetoes as claimed in claim 14, it is characterised in that correspondence on the periphery of the inner side of first magnetic core
One end of each magnetic pole or two ends form cutting face, form one and press from both sides between the cutting plane and the centrage of corresponding magnetic pole
Angle beta, the scope of the angle β are to be less than or equal to 100 ° more than or equal to 60 °.
17. magnetoes as claimed in claim 16, it is characterised in that the scope of the angle β is little more than or equal to 70 °
In equal to 90 °.
18. magnetoes as claimed in claim 14, it is characterised in that the one end in the outside of each pole shoe of the second magnetic core or
Person two ends form cutting face.
19. magnetoes as claimed in claim 18, it is characterised in that the cutting face be cambered surface S2, on the outside of pole shoe in
It is S1 that portion is cambered surface, cambered surface S1 and cambered surface S2 be tangent and the curvature of cambered surface S1 less than cambered surface S1 curvature.
20. a kind of electric tools, it is characterised in that include the magneto as described in any one in claim 1 to 19.
21. electric tools as claimed in claim 20, it is characterised in that the electric tool is electric saw, including saw blade, described
Motor is used for driving the saw blade.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016116883.1A DE102016116883A1 (en) | 2015-09-11 | 2016-09-08 | Permanent magnet motor and power tool using the same |
| US15/260,772 US20170077773A1 (en) | 2015-09-11 | 2016-09-09 | Permanent magnet motor and power tool using same |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510580299 | 2015-09-11 | ||
| CN2015105802997 | 2015-09-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106533106A true CN106533106A (en) | 2017-03-22 |
Family
ID=58358073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610416278.6A Pending CN106533106A (en) | 2015-09-11 | 2016-06-13 | Permanent magnet motor and electric tool using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106533106A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109104014A (en) * | 2018-09-21 | 2018-12-28 | 江苏大学 | A kind of four phase double winding vernier motors |
| CN109412294A (en) * | 2018-10-31 | 2019-03-01 | 山东理工大学 | A kind of permanent magnet synchronous motor of electric car Asymmetric V-type magnet steel |
| CN110114960A (en) * | 2017-03-24 | 2019-08-09 | 宝马股份公司 | Pole shoe, motor and the vehicles |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1169051A (en) * | 1996-03-31 | 1997-12-31 | 三洋电机株式会社 | Permanent magnet stator of motor |
| TW382160B (en) * | 1997-04-02 | 2000-02-11 | Ind Tech Res Inst | Brush-less motor stator and arc modification method thereof |
| JP2002010602A (en) * | 2000-06-19 | 2002-01-11 | Toshiba Digital Media Engineering Corp | Permanent magnet motor and elevator |
| JP2002233122A (en) * | 2001-02-05 | 2002-08-16 | Matsushita Electric Ind Co Ltd | Outer rotor motor, manufacturing method of the motor, and electric vehicle mounting the motor |
| CN1790870A (en) * | 2004-11-25 | 2006-06-21 | 株式会社东芝 | Permanent magnet motor and washing machine provided therewith |
| US20070252465A1 (en) * | 2006-04-27 | 2007-11-01 | Kokusan Denki Co., Ltd. | Outer-rotor-type magneto generator |
| CN101917076A (en) * | 2010-08-26 | 2010-12-15 | 苏州工业园区和鑫电器有限公司 | Permanent magnet drive motor for solar tracking system |
| CN102624180A (en) * | 2012-04-16 | 2012-08-01 | 华域汽车电动系统有限公司 | Concentrated-winding permanent-magnetic synchronous motor |
-
2016
- 2016-06-13 CN CN201610416278.6A patent/CN106533106A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1169051A (en) * | 1996-03-31 | 1997-12-31 | 三洋电机株式会社 | Permanent magnet stator of motor |
| TW382160B (en) * | 1997-04-02 | 2000-02-11 | Ind Tech Res Inst | Brush-less motor stator and arc modification method thereof |
| JP2002010602A (en) * | 2000-06-19 | 2002-01-11 | Toshiba Digital Media Engineering Corp | Permanent magnet motor and elevator |
| JP2002233122A (en) * | 2001-02-05 | 2002-08-16 | Matsushita Electric Ind Co Ltd | Outer rotor motor, manufacturing method of the motor, and electric vehicle mounting the motor |
| CN1790870A (en) * | 2004-11-25 | 2006-06-21 | 株式会社东芝 | Permanent magnet motor and washing machine provided therewith |
| US20070252465A1 (en) * | 2006-04-27 | 2007-11-01 | Kokusan Denki Co., Ltd. | Outer-rotor-type magneto generator |
| CN101917076A (en) * | 2010-08-26 | 2010-12-15 | 苏州工业园区和鑫电器有限公司 | Permanent magnet drive motor for solar tracking system |
| CN102624180A (en) * | 2012-04-16 | 2012-08-01 | 华域汽车电动系统有限公司 | Concentrated-winding permanent-magnetic synchronous motor |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110114960A (en) * | 2017-03-24 | 2019-08-09 | 宝马股份公司 | Pole shoe, motor and the vehicles |
| US11374446B2 (en) | 2017-03-24 | 2022-06-28 | Bayerische Motoren Werke Aktiengesellschaft | Pole shoe, electric motor, and vehicle |
| CN109104014A (en) * | 2018-09-21 | 2018-12-28 | 江苏大学 | A kind of four phase double winding vernier motors |
| CN109104014B (en) * | 2018-09-21 | 2020-06-26 | 江苏大学 | Four-phase double-winding vernier motor |
| CN109412294A (en) * | 2018-10-31 | 2019-03-01 | 山东理工大学 | A kind of permanent magnet synchronous motor of electric car Asymmetric V-type magnet steel |
| CN109412294B (en) * | 2018-10-31 | 2021-06-29 | 山东理工大学 | Permanent magnet synchronous motor of asymmetric V-shaped magnetic steel of electric automobile |
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Application publication date: 20170322 |