CN207166238U - A kind of permanent magnet motor magnetic pole arrangement architecture for producing sinusoidal magnetic flux - Google Patents
A kind of permanent magnet motor magnetic pole arrangement architecture for producing sinusoidal magnetic flux Download PDFInfo
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- CN207166238U CN207166238U CN201720508757.0U CN201720508757U CN207166238U CN 207166238 U CN207166238 U CN 207166238U CN 201720508757 U CN201720508757 U CN 201720508757U CN 207166238 U CN207166238 U CN 207166238U
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- 230000004907 flux Effects 0.000 title claims abstract description 12
- 239000000178 monomer Substances 0.000 claims abstract description 66
- 230000008859 change Effects 0.000 claims description 7
- 238000004804 winding Methods 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 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
- 238000012545 processing Methods 0.000 description 2
- 241000397426 Centroberyx lineatus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
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Abstract
A kind of permanent magnet motor magnetic pole arrangement architecture for producing 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 relative with the 3rd side portion to be arranged in parallel, it is in plane with identical size, continuous equidirectional keeps flat and is fixed on magnetic conduction backboard length direction of multiple monomer magnetic poles along magnetic conduction backboard successively, length direction of the first side portion of multiple monomer magnetic poles with the 3rd side portion each parallel to magnetic conduction backboard, length of each monomer magnetic pole on the width 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 in opposite direction, the internal magnetic field direction of the multiple monomer magnetic pole is vertical with magnetic conduction backboard.The utility model permanent magnet motor magnetic pole arrangement architecture produces the magnetic flux by sinusoidal variations in armature winding, improves the stationarity of motor electromagnetic torque.
Description
Technical field
It the utility model is related to machine field, and in particular to a kind of permanent magnet motor magnetic pole arrangement knot for producing sinusoidal magnetic flux
Structure, machine field more particularly to magneto electromagnetic design suitable for electrical engineering.
Background technology
At present, rotor field waveform caused by rotor structure is in square used by most of magneto, its
In contain substantial amounts of higher hamonic wave.The higher hamonic wave in magnetic field can produce harmful effect to magneto performance, mainly include：(1)
High frequency iron loss is produced in electric machine iron core, reduces electric efficiency；(2) increase the back-emf harmonic content of motor, influence motor
Control accuracy；(3) motor electromagnetic torque is made to produce larger fluctuation；(4) higher hamonic wave disperses magnetic pole and magnetic field energy, weakens fundamental wave energy
Amount, reduce magnet steel utilization rate.Therefore, the sine degree for improving rotor field is significant to improving magneto performance.
In motor rotor construction design, there is document to propose to optimize magnetic pole the method for design to improve rotor field
Waveform.The rotor structure optimization of the main magneto for 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 is included in adjustment
The methods of magnetic pole angle of embedded magnet steel, number, the magnetic pole number of plies and change rotor silicon steel sheet profile.Such method is only capable of to spy
The motor being sized 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, because rotor silicon steel sheet is issuable full
And effect, air-gap field can produce distortion, it is impossible to reach identified sine degree during design.At the same time, for embedded
The magnetic field optimization of magneto can 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 types magnet steel magnetizes difficulty
Greatly, yield rate is low, and the magnet steel scale of construction needed is larger, can cause the raising of motor cost.Arranged for the magnetic pole of PWM waveform segmentation
Row method, magnetic field optimization variable is more, and optimization difficulty is larger, and Optimal Parameters change with motor size, equally without general
Property.
Utility model content
In order to solve the above technical problems, the permanent magnet flux for making to be interlinked in each phase winding changes in sinusoidal form, carry
The counter potential waveform sine degree of high motor, improve the smoothness of electromagnetic torque.The utility model passes through to the outer of surface-mount type magnet steel
Shape carries out particular constraints, proposes a kind of magnetic for the new surface-mounted permanent magnet machine that sinusoidal magnetic flux can be produced in armature winding
Pole arrangement architecture.
The permanent magnet motor magnetic pole arrangement architecture of the present utility model for producing sinusoidal magnetic flux includes magnetic conduction backboard and multiple lists
Body magnetic pole, it is characterised in that：The monomer magnetic pole is in there is certain thickness laminated structure, each with top surface, bottom surface and four
Individual side portion, top surface and bottom surface are substantially in quadrangle, four side portions respectively with top surface and plane perpendicular, first side portion and the
Three side portions are oppositely arranged and are parallel to each other, be in it is plane with identical size,
Continuous equidirectional keeps flat and is fixed on magnetic conduction backboard length direction of multiple monomer magnetic poles along magnetic conduction backboard successively, multiple
Length direction of the first side portion of monomer magnetic pole with the 3rd side portion each parallel to magnetic conduction backboard,
Length of each monomer magnetic pole on the width vertical with the length direction of magnetic conduction backboard is in first half cycle
Sinusoidal rule changes, and the internal magnetic field of adjacent two monomer magnetic poles is in opposite direction, the internal magnetic field of the multiple monomer magnetic pole
Direction is vertical with magnetic conduction backboard.
Further, the second side portion of monomer magnetic pole is oppositely arranged with four side portion, is in the curved surface protruded laterally,
The boundary line of each side portion is each perpendicular to top surface and bottom surface.
Further, in the monomer magnetic pole, by the boundary line between first side portion and second side portion and the 3rd side
The plane that boundary line between edge and four side portion limits is perpendicular to first side portion and the 3rd side portion.
The utility model also provides a kind of permanent magnet motor magnetic pole arrangement architecture for producing sinusoidal magnetic flux, including magnetic conduction backboard
With multiple magnetic poles, each magnetic pole has the combined shaped of multiple monomer magnetic poles,
Each monomer magnetic pole is in there is certain thickness laminated structure, each with top surface, bottom surface and four side portions, top surface
Substantially it is in quadrangle with bottom surface, four side portions are relative with the 3rd side portion with top surface and plane perpendicular, first side portion respectively
Set and be parallel to each other, be in it is plane with identical size,
On the width vertical with the length direction of magnetic conduction backboard, two neighboring monomer magnetic pole is engaged side by side successively
A respective plane side portion, the combined shaped of magnetic poles,
Continuous equidirectional keeps flat and is fixed on magnetic conduction backboard length direction of multiple magnetic poles along magnetic conduction backboard successively, and magnetic pole has
Planar side edge parallel to magnetic conduction backboard length direction,
Length of multiple magnetic poles on the width 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 in opposite direction, and internal magnetic field direction and the magnetic conduction of the multiple magnetic pole are carried on the back
Plate is vertical.
Further, the second side portion of monomer magnetic pole is oppositely arranged with four side portion, is in the curved surface protruded laterally,
The boundary line of each side portion is each perpendicular to top surface and bottom surface.
Further, in the monomer magnetic pole, by the boundary line between first side portion and second side portion and the 3rd side
The plane that boundary line between edge and four side portion limits is perpendicular to first side portion and the 3rd side portion.
Further, each magnetic pole is the combined shaped with two or four monomer magnetic pole.
The utility model proposes pole arrangement structure can realize following beneficial effect：
(1) the utility model proposes permanent magnet motor magnetic pole arrangement architecture can be produced when motor works in armature winding
The raw magnetic flux by sinusoidal variations so that counter electromotive force of motor waveform has high sine degree, improves motor electromagnetic torque
Stationarity.
(2) the utility model proposes permanent magnet shape constraining conditional parameter it is less, be suitable for various motor sizes, have
Very strong versatility.
Brief description of the drawings
Fig. 1 is the plan of permanent magnet motor magnetic pole arrangement architecture embodiment 1 of the present utility model；
Fig. 2 is the stereogram of permanent magnet motor magnetic pole arrangement architecture embodiment 1 of the present utility model；
Fig. 3 is the stereogram of permanent magnet motor magnetic pole arrangement architecture embodiment 2 of the present utility model；
Fig. 4 is the stereogram of permanent magnet motor magnetic pole arrangement architecture embodiment 3 of the present utility model.
Embodiment
For the purpose of this utility model, technical scheme and advantage is more clearly understood, below in conjunction with specific embodiment, and
Referring to the drawings, the utility model is further described.But those skilled in the art know, the utility model is not limited to
Accompanying drawing and following examples.
Embodiment 1：
In embodiment of the present utility model, as shown in Figure 1, 2, the permanent magnet motor magnetic pole arrangement architecture is carried on the back including magnetic conduction
Plate 1 and multiple monomer magnetic poles, 4 monomer magnetic poles are illustrate only in Fig. 1,2, the geomery of each monomer magnetic pole is identical, adjacent list
Between body magnetic pole there is identical to set relation.
The monomer magnetic pole is in there is certain thickness laminated structure, each with top surface, bottom surface and four side portions, top
Face and bottom surface are substantially in quadrangle, four side portions respectively with top surface and plane perpendicular.By taking monomer magnetic pole 3 as an example, first side
Portion 31 is oppositely arranged and is parallel to each other with the 3rd side portion 33, is in plane with identical size；Second side portion 32 with
Four side portion 34 is oppositely arranged, and is each perpendicular to top surface and bottom surface in the curved surface protruded laterally, the boundary line of each side portion,
By the friendship between the boundary line between first side portion 31 and second side portion 32 and the 3rd side portion 33 and four side portion 34
The plane that boundary line limits is perpendicular to the side portion 33 of first side portion 31 and the 3rd.
Adjacent monomer magnetic pole in below by taking the first adjacent monomer magnetic pole 2 and second comonomer magnetic pole 3 as an example to the present embodiment
Between setting relation illustrate.
The length direction L of first monomer magnetic pole 2 and second comonomer magnetic pole 3 along magnetic conduction backboard 1 is kept flat in the same direction successively 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 the 3rd 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 width W vertical L 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 in opposite direction, and the top surface of the first monomer magnetic pole 2 is N poles, and bottom surface is S poles, second comonomer magnetic pole 3
Top surface is S poles, and bottom surface is N poles；Hung down with magnetic conduction backboard 1 in the internal magnetic field direction of first monomer magnetic pole 2 and second comonomer magnetic pole 3
Directly.
In the utility model embodiment, four tactic examples of monomer magnetic pole, people in the art illustrate only
Member is it is appreciated that multiple phases can be arranged side by side in the outside splicing sequence straight line of two monomer magnetic poles end to end shown in Fig. 1,2
With monomer magnetic pole, the arrangement mode between monomer magnetic pole is identical with the arrangement mode between first, second monomer magnetic pole 2,3,
It can be used for linear electric motors；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 is the length direction L of magnetic conduction backboard)
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 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 into 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：Leading
On width W vertical the length direction L of magnetic backboard 1, a plane side of the first monomer magnetic pole 61 is engaged side by side successively
Side and a plane side of second comonomer magnetic pole 62, so as to form the magnetic pole 6 with swallowtail shape.
Length direction L of multiple magnetic poles 6 along magnetic conduction backboard 1 is kept flat in the same direction successively to be fixed on magnetic conduction backboard 1, and magnetic pole 6 has
Length direction L of some planar side edge 63 parallel to magnetic conduction backboard 1.Also, multiple magnetic poles 6 are in the length with magnetic conduction backboard 1
Length on width W vertical direction L 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,
Each magnetic pole 7 has the combined shaped of four monomer magnetic poles, and concrete shape is：In the vertical width of the length direction L of magnetic conduction backboard 1
Spend on the W of direction, two plane sides of a monomer magnetic pole 71 are plane with one of adjacent monomer magnetic pole 72,73 respectively
Side engages, and another plane side of monomer magnetic pole 73 engages with a plane side of adjacent monomer magnetic pole 74, from
And form the magnetic pole 7 with combined shaped.
Continuous equidirectional keeps flat and is fixed on magnetic conduction backboard 1 length direction L of multiple magnetic poles 7 along magnetic conduction backboard 1 successively, i.e., from
Seen 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 parallel to magnetic conduction backboard 1 length direction L.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 in opposite direction；It is multiple
The internal magnetic field direction of magnetic pole 7 is vertical with magnetic conduction backboard 1.
More than, embodiment of the present utility model is illustrated.But the utility model is not limited to above-mentioned implementation
Mode.All any modification, equivalent substitution and improvements within the spirit and principles of the utility model, done etc., should be included in
Within the scope of protection of the utility model.
Claims (7)
1. a kind of permanent magnet motor magnetic pole arrangement architecture for producing sinusoidal magnetic flux, including magnetic conduction backboard and multiple monomer magnetic poles, its
It is characterised by：The monomer magnetic pole is in there is certain thickness laminated structure, each with top surface, bottom surface and four side portions,
Top surface and bottom surface are in quadrangle, and four side portions are relative with the 3rd side portion with top surface and plane perpendicular, first side portion respectively
Set and be parallel to each other, be in it is plane with identical size,
Continuous equidirectional keeps flat and is fixed on magnetic conduction backboard length direction of multiple monomer magnetic poles along magnetic conduction backboard successively, multiple monomers
Length direction of the first side portion of magnetic pole with the 3rd side portion each parallel to magnetic conduction backboard,
Length of each monomer magnetic pole on the width vertical with the length direction of magnetic conduction backboard is in the sine of first half cycle
Rule changes, and the internal magnetic field of adjacent two monomer magnetic poles is in opposite direction, 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 claimed in claim 1, it is characterised in that：The second side portion of monomer magnetic pole with
Four side portion is oppositely arranged, and is each perpendicular to top surface and bottom surface in the curved surface protruded laterally, the boundary line of each side portion.
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 and the 3rd side portion and four side portion between one side portion and second side portion limits flat
Face is perpendicular to first side portion and the 3rd side portion.
4. a kind of permanent magnet motor magnetic pole arrangement architecture for producing sinusoidal magnetic flux, including magnetic conduction backboard and multiple magnetic poles, its feature
It is：Each magnetic pole has the combined shaped of multiple monomer magnetic poles,
Each monomer magnetic pole is in there is certain thickness laminated structure, each with top surface, bottom surface and four side portions, top surface and bottom
Face is in quadrangle, and four side portions are respectively with top surface and plane perpendicular, and first side portion is oppositely arranged with the 3rd side portion and phase
It is mutually parallel, be in it is plane with identical size,
On the width vertical with the length direction of magnetic conduction backboard, the respective of two neighboring monomer magnetic pole is engaged side by side successively
One plane side portion, the combined shaped of magnetic poles,
Continuous equidirectional keeps flat and is fixed on magnetic conduction backboard length direction of multiple magnetic poles along magnetic conduction backboard successively, and magnetic pole has flat
Surface side edge parallel to magnetic conduction backboard length direction,
Length of multiple magnetic poles on the width 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 in opposite direction, and internal magnetic field direction and the magnetic conduction backboard of the multiple magnetic pole hang down
Directly.
5. permanent magnet motor magnetic pole arrangement architecture as claimed in claim 4, it is characterised in that：The second side portion of monomer magnetic pole with
Four side portion is oppositely arranged, and is each perpendicular to top surface and bottom surface in the curved surface protruded laterally, the boundary line of each side portion.
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 and the 3rd side portion and four side portion between one side portion and second side portion limits flat
Face is perpendicular to first side portion and the 3rd 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
Individual or four monomer magnetic poles combined shaped.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108880029A (en) * | 2017-05-09 | 2018-11-23 | 合肥硬核派科技有限公司 | A kind of permanent magnet motor magnetic pole arrangement architecture can produce sinusoidal magnetic flux |
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- 2017-05-09 CN CN201720508757.0U patent/CN207166238U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108880029A (en) * | 2017-05-09 | 2018-11-23 | 合肥硬核派科技有限公司 | A kind of permanent magnet motor magnetic pole arrangement architecture can produce sinusoidal magnetic flux |
| CN108880029B (en) * | 2017-05-09 | 2024-01-02 | 合肥硬核派科技有限公司 | Permanent magnet motor magnetic pole arrangement structure capable of generating sine magnetic flux |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 244000 No.2, building C2, accelerator park for small and medium sized science and technology enterprises, 129 Cuihu fifth road, Tongling City, Anhui Province Patentee after: Tongling hardcore Technology Co.,Ltd. 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. |
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| CP03 | Change of name, title or address | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A permanent magnet motor magnetic pole arrangement structure that can generate sinusoidal magnetic flux Effective date of registration: 20220819 Granted publication date: 20180330 Pledgee: Tongling state credit financing Company limited by guarantee Pledgor: Tongling hardcore Technology Co.,Ltd. Registration number: Y2022980013076 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CP03 | Change of name, title or address |
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: 244000 No.2, building C2, accelerator park for small and medium sized science and technology enterprises, 129 Cuihu fifth road, Tongling City, Anhui Province Patentee before: Tongling hardcore Technology Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |