CN108880029A - A kind of permanent magnet motor magnetic pole arrangement architecture can produce sinusoidal magnetic flux - Google Patents
A kind of permanent magnet motor magnetic pole arrangement architecture can produce sinusoidal magnetic flux Download PDFInfo
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- CN108880029A CN108880029A CN201710322894.XA CN201710322894A CN108880029A CN 108880029 A CN108880029 A CN 108880029A CN 201710322894 A CN201710322894 A CN 201710322894A CN 108880029 A CN108880029 A CN 108880029A
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- 230000004907 flux Effects 0.000 title claims abstract description 12
- 239000000178 monomer Substances 0.000 claims abstract description 68
- 230000008859 change Effects 0.000 claims description 7
- 238000004804 winding Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 238000005457 optimization Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 241000397426 Centroberyx lineatus Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- H02K1/278—Surface mounted magnets; Inset magnets
-
- 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
- H02K1/24—Rotor cores with salient poles ; Variable reluctance rotors
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
A kind of permanent magnet motor magnetic pole arrangement architecture can produce sinusoidal magnetic flux, including magnetic conduction backboard and multiple monomer magnetic poles, monomer magnetic pole is in have certain thickness laminated structure, with top surface, bottom surface and four side portions, first side portion is opposite with third side portion to be arranged in parallel, in planar with identical size, along the length direction of magnetic conduction backboard, successively continuous equidirectional lays flat and is fixed on magnetic conduction backboard multiple monomer magnetic poles, the first side portion of multiple monomer magnetic poles is with third side portion each parallel to the length direction of magnetic conduction backboard, length of each monomer magnetic pole in the width direction vertical with the length direction of magnetic conduction backboard changes in the sinusoidal rule of first half cycle, the internal magnetic field of two neighboring monomer magnetic pole is contrary, the internal magnetic field direction of the multiple monomer magnetic pole is vertical with magnetic conduction backboard.Permanent magnet motor magnetic pole arrangement architecture of the present invention generates the magnetic flux by sinusoidal variations in armature winding, improves the stationarity of motor electromagnetic torque.
Description
Technical field
The present invention relates to motor fields, and in particular to a kind of permanent magnet motor magnetic pole arrangement architecture that can produce sinusoidal magnetic flux,
Motor field more particularly to magneto electromagnetic design suitable for electrical engineering.
Background technique
Currently, rotor field waveform caused by rotor structure used by most of magneto is in square,
In contain a large amount of higher hamonic wave.The higher hamonic wave in magnetic field can generate adverse effect to magneto performance, mainly include：(1)
High frequency iron loss is generated in electric machine iron core, reduces electric efficiency；(2) increase the back-emf harmonic content of motor, influence motor
Control precision；(3) motor electromagnetic torque is made to generate larger fluctuation；(4) higher hamonic wave disperses magnetic pole and magnetic field energy, weakens fundamental wave energy
Amount reduces magnet steel utilization rate.Therefore, the sine degree for improving rotor field is of great significance to magneto performance is improved.
In motor rotor construction design, there is document to propose the method optimized to magnetic pole to improve rotor field
Waveform.The mainly rotor structure optimization of the magneto including two kinds of rotor types：
(1) built-in permanent magnetic motor
For magnet steel built-in permanent magnetic motor, to improve rotor field sine degree, the method mainly used includes in adjustment
The magnetic pole angle of embedded magnet steel, number, the methods of the magnetic pole number of plies and change rotor silicon steel sheet shape.Such method is only capable of to spy
The motor of scale cun is designed, if motor size parameter change, corresponding optimized variable also will accordingly change, therefore not have
There is versatility, the development cost of design of electrical motor can be improved.While motor operation, since rotor silicon steel sheet is issuable full
And effect, air-gap field can generate distortion, can not reach identified sine degree when design.At the same time, for embedded
The magnetic field optimization of magneto will increase the complexity of electric machine structure, cause the increase of motor difficulty of processing, improve motor processing
Cost.
(2) surface-mounted permanent magnet machine
For surface-mounted permanent magnet machine, to improve rotor field sine degree, the method mainly used at present includes using
Halbach array of magnetic dipoles uses the segmented array of magnetic dipoles for being similar to PWM waveform.Wherein, Halbach type magnet steel magnetizes difficulty
Greatly, yield rate is low, and the magnet steel scale of construction needed is larger, will cause the raising of motor cost.For the magnetic pole row of PWM waveform segmentation
Column method, magnetic field optimization variable is more, and optimization difficulty is larger, and Optimal Parameters change with motor size, does not have equally general
Property.
Summary of the invention
In order to solve the above technical problems, changing the permanent magnet flux to be interlinked in each phase winding in sinusoidal form, mention
The counter potential waveform sine degree of high motor, improves the smoothness of electromagnetic torque.The present invention by the shape to surface-mount type magnet steel into
Row particular constraints propose a kind of magnetic pole row of novel surface-mounted permanent magnet machine that sinusoidal magnetic flux can be generated in armature winding
Array structure.
The permanent magnet motor magnetic pole arrangement architecture that can produce sinusoidal magnetic flux of the invention includes magnetic conduction backboard and multiple monomer magnetic
Pole, it is characterised in that：The monomer magnetic pole is in have certain thickness laminated structure, respectively has top surface, bottom surface and four sides
Edge, top and bottom are substantially in quadrangle, and four side portions are vertical with top and bottom respectively, first side portion and third side
Edge is oppositely arranged and is parallel to each other, in planar with identical size,
Along the length direction of magnetic conduction backboard, successively continuous equidirectional lays flat and is fixed on magnetic conduction backboard multiple monomer magnetic poles, multiple
The first side portion of monomer magnetic pole and third side portion each parallel to magnetic conduction backboard length direction,
Length of each monomer magnetic pole in the width direction vertical with the length direction of magnetic conduction backboard is in first half cycle
Sinusoidal rule variation, the internal magnetic field of two adjacent monomer magnetic poles is contrary, the internal magnetic field of the multiple monomer magnetic pole
Direction is vertical with magnetic conduction backboard.
Further, second side edge of monomer magnetic pole is oppositely arranged with four side portion, is in the curved surface protruded outward,
The boundary line of each side portion is each perpendicular to top and bottom.
Further, in the monomer magnetic pole, by between first side portion and second side edge boundary line and third side
The plane that boundary line between edge and four side portion limits is perpendicular to first side portion and third side portion.
The present invention also provides a kind of permanent magnet motor magnetic pole arrangement architecture that can produce sinusoidal magnetic flux, including magnetic conduction backboard and more
A magnetic pole, each magnetic pole have the combined shaped of multiple monomer magnetic poles,
Each monomer magnetic pole respectively has top surface, bottom surface and four side portions, top surface in there is certain thickness laminated structure
It is substantially in quadrangle with bottom surface, four side portions are vertical with top and bottom respectively, and first side portion is opposite with third side portion
It is arranged and is parallel to each other, in planar with identical size,
In the width direction vertical with the length direction of magnetic conduction backboard, two neighboring monomer magnetic pole is successively engaged side by side
A respective planar side portion, the combined shaped of magnetic poles,
Along the length direction of magnetic conduction backboard, successively continuous equidirectional lays flat and is fixed on magnetic conduction backboard multiple magnetic poles, and magnetic pole has
Planar side edge be parallel to the length direction of magnetic conduction backboard,
Length of multiple magnetic poles in the width direction vertical with the length direction of magnetic conduction backboard is in the sine of first half cycle
Rule changes, and the internal magnetic field between adjacent magnetic pole is contrary, and the internal magnetic field direction of the multiple magnetic pole and magnetic conduction are carried on the back
Plate is vertical.
Further, second side edge of monomer magnetic pole is oppositely arranged with four side portion, is in the curved surface protruded outward,
The boundary line of each side portion is each perpendicular to top and bottom.
Further, in the monomer magnetic pole, by between first side portion and second side edge boundary line and third side
The plane that boundary line between edge and four side portion limits is perpendicular to first side portion and third side portion.
Further, each magnetic pole is the combined shaped with two or four monomer magnetic pole.
Pole arrangement structure proposed by the present invention can be realized following beneficial effect：
(1) permanent magnet motor magnetic pole arrangement architecture proposed by the present invention can be generated in armature winding when motor works and be pressed
The magnetic flux of sinusoidal variations improves the steady of motor electromagnetic torque so that counter electromotive force of motor waveform has high sine degree
Property.
(2) permanent magnet shape constraining conditional parameter proposed by the present invention is less, is suitable for various motor sizes, has very strong
Versatility.
Detailed description of the invention
Fig. 1 is the plan view of permanent magnet motor magnetic pole arrangement architecture embodiment 1 of the invention；
Fig. 2 is the perspective view of permanent magnet motor magnetic pole arrangement architecture embodiment 1 of the invention；
Fig. 3 is the perspective view of permanent magnet motor magnetic pole arrangement architecture embodiment 2 of the invention；
Fig. 4 is the perspective view of permanent magnet motor magnetic pole arrangement architecture embodiment 3 of the invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in more detail.But as known to those skilled in the art, the invention is not limited to attached drawings and following reality
Apply example.
Embodiment 1：
In an embodiment of the present invention, as shown in Figure 1, 2, the permanent magnet motor magnetic pole arrangement architecture includes magnetic conduction backboard 1
With multiple monomer magnetic poles, 4 monomer magnetic poles Fig. 1, are illustrated only in 2, the geomery of each monomer magnetic pole is identical, adjacent monomer magnetic
Interpolar setting relationship having the same.
The monomer magnetic pole is in have certain thickness laminated structure, respectively has top surface, bottom surface and four side portions, top
Face and bottom surface are substantially in quadrangle, and four side portions are vertical with top and bottom respectively.By taking monomer magnetic pole 3 as an example, first side
Portion 31 is oppositely arranged and is parallel to each other with third side portion 33, in planar with identical size；Second side edge 32 with
Four side portion 34 is oppositely arranged, and in the curved surface protruded outward, the boundary line of each side portion is each perpendicular to top and bottom,
By the friendship between the boundary line between first side portion 31 and second side edge 32 and third side portion 33 and four side portion 34
The plane that boundary line limits is perpendicular to first side portion 31 and third side portion 33.
Below to adjacent monomer magnetic pole in the present embodiment by taking the first adjacent monomer magnetic pole 2 and second comonomer magnetic pole 3 as an example
Between setting relationship be illustrated.
First monomer magnetic pole 2 and second comonomer magnetic pole 3 are successively laid flat in the same direction along the length direction L of magnetic conduction backboard 1 to be fixed on
On magnetic conduction backboard 1, i.e., in terms of the length direction perpendicular to magnetic conduction backboard 1, the phase of the first monomer magnetic pole 2 and second comonomer magnetic pole 3
Adjacent both ends 4,5 connect, the first side portion of the first monomer magnetic pole 2 and second comonomer magnetic pole 3 and third side portion each parallel to
The length direction L of magnetic conduction backboard 1.Also, the first monomer magnetic pole 2 and second comonomer magnetic pole 3 are in the length direction with magnetic conduction backboard 1
Length on L vertical width direction W changes in the sinusoidal rule of first half cycle.The first adjacent monomer magnetic pole 2 and second is single
The internal magnetic field of body magnetic pole 3 is contrary, and the top surface of the first monomer magnetic pole 2 is the pole N, and bottom surface is the pole S, second comonomer magnetic pole 3
Top surface is the pole S, and bottom surface is the pole N；First monomer magnetic pole 2 hangs down with the internal magnetic field direction of second comonomer magnetic pole 3 and magnetic conduction backboard 1
Directly.
In embodiments of the present invention, four tactic examples of monomer magnetic pole are illustrated only, those skilled in the art can
To understand, can shown in Fig. 1,2 end to end the outside splicing sequence straight line of two monomer magnetic poles be arranged side by side it is multiple identical
Monomer magnetic pole, the arrangement mode between monomer magnetic pole is identical as the arrangement mode between the first, second monomer magnetic pole 2,3, can be with
For linear motor；If being used for barrel-shaped motor, monomer magnetic pole encompasses barrel-shaped arrangement.
In the motor course of work, monomer magnetic pole is swept along the direction of motion (direction of motion, that is, magnetic conduction backboard length direction L)
The boundary line of pole shoe is crossed, pole shoe boundary line is generally perpendicular to the direction of motion, due to the length on the width direction W of each monomer magnetic pole
Change in the sinusoidal rule of first half cycle, then the line length of the monomer magnetic pole section of inswept pole shoe boundary line becomes at sinusoidal rule
Change.
Embodiment 2：
Based on previous embodiment, permanent magnet motor magnetic pole arrangement architecture is further constructed, as shown in figure 3, permanent magnet motor magnetic pole
Arrangement architecture has multiple magnetic poles 6, and each magnetic pole 6 has the combined shaped of above-mentioned two monomer magnetic pole, and concrete shape is：It is leading
On the length direction L of magnetic backboard 1 vertical width direction W, a planar side of the first monomer magnetic pole 61 is successively engaged side by side
One planar side on side and second comonomer magnetic pole 62, to constitute the magnetic pole 6 with swallowtail shape.
Multiple magnetic poles 6 successively lay flat in the same direction along the length direction L of magnetic conduction backboard 1 and are fixed on magnetic conduction backboard 1, and magnetic pole 6 has
Some planar side edge 63 are parallel to the length direction L of magnetic conduction backboard 1.Also, multiple magnetic poles 6 are in the length with magnetic conduction backboard 1
Length on direction L vertical width direction W changes in the sinusoidal rule of first half cycle.Inner magnet between adjacent magnetic pole 6
Field direction is opposite；The internal magnetic field direction of multiple magnetic poles 6 is vertical with magnetic conduction backboard 1.
Embodiment 3：
Further, as shown in figure 4, similar to Example 2, permanent magnet motor magnetic pole arrangement architecture can have multiple magnetic poles 7,
There are four the combined shaped of monomer magnetic pole, concrete shape is each tool of magnetic pole 7：In the vertical width of the length direction L of magnetic conduction backboard 1
It spends on the W of direction, two planar sides of a monomer magnetic pole 71 are planar with one of adjacent monomer magnetic pole 72,73 respectively
Side engagement, another planar side of monomer magnetic pole 73 are engaged with a planar side of adjacent monomer magnetic pole 74, from
And constitute the magnetic pole 7 with combined shaped.
Along the length direction L of magnetic conduction backboard 1, successively continuous equidirectional lays flat and is fixed on magnetic conduction backboard 1 multiple magnetic poles 7, i.e., from
Perpendicular to seeing on the length direction of magnetic conduction backboard 1, the adjacent both ends portion of multiple magnetic poles 7 connects, the planar side edge that magnetic pole 7 has
75 are parallel to the length direction L of magnetic conduction backboard 1.Also, multiple magnetic poles 7 are in the width vertical with the length direction L of magnetic conduction backboard 1
Length on the W of direction changes in the sinusoidal rule of first half cycle.Internal magnetic field between adjacent magnetic pole 7 is contrary；It is multiple
The internal magnetic field direction of magnetic pole 7 is vertical with magnetic conduction backboard 1.
More than, embodiments of the present invention are illustrated.But the present invention is not limited to above embodiment.It is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in guarantor of the invention
Within the scope of shield.
Claims (7)
1. a kind of permanent magnet motor magnetic pole arrangement architecture that can produce sinusoidal magnetic flux, including magnetic conduction backboard and multiple monomer magnetic poles,
It is characterized in that：The monomer magnetic pole is in have certain thickness laminated structure, respectively has top surface, bottom surface and four side portions,
Top and bottom are substantially in quadrangle, and four side portions are vertical with top and bottom respectively, first side portion and third side portion
It is oppositely arranged and is parallel to each other, in planar with identical size,
Along the length direction of magnetic conduction backboard, successively continuous equidirectional lays flat and is fixed on magnetic conduction backboard multiple monomer magnetic poles, multiple monomers
The first side portion of magnetic pole and third side portion each parallel to magnetic conduction backboard length direction,
Length of each monomer magnetic pole in the width direction vertical with the length direction of magnetic conduction backboard is in the sine of first half cycle
Rule variation, the internal magnetic field of two adjacent monomer magnetic poles is contrary, the internal magnetic field direction of the multiple monomer magnetic pole
It is vertical with magnetic conduction backboard.
2. permanent magnet motor magnetic pole arrangement architecture as described in claim 1, it is characterised in that：Second side edge of monomer magnetic pole with
Four side portion is oppositely arranged, and in the curved surface protruded outward, the boundary line of each side portion is each perpendicular to top and bottom.
3. permanent magnet motor magnetic pole arrangement architecture as claimed in claim 2, it is characterised in that：In the monomer magnetic pole, by
Boundary line between boundary line between side edge and second side edge and third side portion and four side portion limits flat
Face is perpendicular to first side portion and third side portion.
4. a kind of permanent magnet motor magnetic pole arrangement architecture that can produce sinusoidal magnetic flux, including magnetic conduction backboard and multiple magnetic poles, feature
It is：Each magnetic pole has the combined shaped of multiple monomer magnetic poles,
Each monomer magnetic pole respectively has top surface, bottom surface and four side portions, top surface and bottom in there is certain thickness laminated structure
Face is substantially in quadrangle, and four side portions are vertical with top and bottom respectively, and first side portion is oppositely arranged with third side portion
And be parallel to each other, in planar with identical size,
In the width direction vertical with the length direction of magnetic conduction backboard, the respective of two neighboring monomer magnetic pole is successively engaged side by side
One planar side portion, the combined shaped of magnetic poles,
Along the length direction of magnetic conduction backboard, successively continuous equidirectional lays flat and is fixed on magnetic conduction backboard multiple magnetic poles, and magnetic pole has flat
Surface side edge is parallel to the length direction of magnetic conduction backboard,
Length of multiple magnetic poles in the width direction vertical with the length direction of magnetic conduction backboard is in the sinusoidal rule of first half cycle
Change, the internal magnetic field between adjacent magnetic pole is contrary, and the internal magnetic field direction of the multiple magnetic pole and magnetic conduction backboard hang down
Directly.
5. permanent magnet motor magnetic pole arrangement architecture as claimed in claim 4, it is characterised in that：Second side edge of monomer magnetic pole with
Four side portion is oppositely arranged, and in the curved surface protruded outward, the boundary line of each side portion is each perpendicular to top and bottom.
6. permanent magnet motor magnetic pole arrangement architecture as claimed in claim 5, it is characterised in that：In the monomer magnetic pole, by
Boundary line between boundary line between side edge and second side edge and third side portion and four side portion limits flat
Face is perpendicular to first side portion and third side portion.
7. the permanent magnet motor magnetic pole arrangement architecture as described in one of claim 4-6, it is characterised in that：Each magnetic pole is with two
A or four monomer magnetic poles combined shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710322894.XA CN108880029B (en) | 2017-05-09 | 2017-05-09 | Permanent magnet motor magnetic pole arrangement structure capable of generating sine magnetic flux |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710322894.XA CN108880029B (en) | 2017-05-09 | 2017-05-09 | Permanent magnet motor magnetic pole arrangement structure capable of generating sine magnetic flux |
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| CN108880029A true CN108880029A (en) | 2018-11-23 |
| CN108880029B CN108880029B (en) | 2024-01-02 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2331835A1 (en) * | 1998-05-08 | 1999-11-18 | Juha Pyrhonen | Permanent magnet synchronous machine |
| JP2011147289A (en) * | 2010-01-15 | 2011-07-28 | Honda Motor Co Ltd | Rotary electric machine |
| CN102142725A (en) * | 2011-03-31 | 2011-08-03 | 杭州德伺麦科技有限公司 | Rotor of permanent-magnet alternating current servo motor |
| JP2011217591A (en) * | 2010-03-18 | 2011-10-27 | Yaskawa Electric Corp | Permanent magnet synchronous linear motor and table feeding device using the same |
| CN105262254A (en) * | 2015-09-29 | 2016-01-20 | 河海大学 | Surface-built-in mixed speed-regulating permanent magnet synchronous motor |
| CN105684266A (en) * | 2013-10-30 | 2016-06-15 | 株式会社东芝 | Motor and washing machine |
| CN207166238U (en) * | 2017-05-09 | 2018-03-30 | 合肥硬核派科技有限公司 | A kind of permanent magnet motor magnetic pole arrangement architecture for producing sinusoidal magnetic flux |
-
2017
- 2017-05-09 CN CN201710322894.XA patent/CN108880029B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2331835A1 (en) * | 1998-05-08 | 1999-11-18 | Juha Pyrhonen | Permanent magnet synchronous machine |
| JP2011147289A (en) * | 2010-01-15 | 2011-07-28 | Honda Motor Co Ltd | Rotary electric machine |
| JP2011217591A (en) * | 2010-03-18 | 2011-10-27 | Yaskawa Electric Corp | Permanent magnet synchronous linear motor and table feeding device using the same |
| CN102142725A (en) * | 2011-03-31 | 2011-08-03 | 杭州德伺麦科技有限公司 | Rotor of permanent-magnet alternating current servo motor |
| CN105684266A (en) * | 2013-10-30 | 2016-06-15 | 株式会社东芝 | Motor and washing machine |
| CN105262254A (en) * | 2015-09-29 | 2016-01-20 | 河海大学 | Surface-built-in mixed speed-regulating permanent magnet synchronous motor |
| CN207166238U (en) * | 2017-05-09 | 2018-03-30 | 合肥硬核派科技有限公司 | A kind of permanent magnet motor magnetic pole arrangement architecture for producing sinusoidal magnetic flux |
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| CN108880029B (en) | 2024-01-02 |
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Address after: 313009, No. 585-483, Shiyuan West Road, Dongqian Street, Nanxun District, Huzhou City, Zhejiang Province Patentee after: Huzhou Hardcore Pai Technology Co.,Ltd. Country or region after: China Address before: 230000 Hefei, Anhui economic and Technological Development Zone, east of Hean Road, Pearl Plaza, one of the Nordic street D01 area. Patentee before: HEFEI YINGHEPAI TECHNOLOGY CO.,LTD. Country or region before: China |