CN206759192U - 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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- CN206759192U CN206759192U CN201720516336.2U CN201720516336U CN206759192U CN 206759192 U CN206759192 U CN 206759192U CN 201720516336 U CN201720516336 U CN 201720516336U CN 206759192 U CN206759192 U CN 206759192U
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- 238000004804 winding Methods 0.000 abstract description 4
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- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000013461 design Methods 0.000 description 5
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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 magnetic poles, the magnetic pole is in have certain thickness bar lobate, multiple magnetic poles continuously keep flat and are fixed on magnetic conduction backboard successively along respective length direction, length of each magnetic pole on its width vertical with length direction changes in the sinusoidal rule of first half cycle, the internal magnetic field of two adjacent magnetic poles is in opposite direction, and the internal magnetic field direction of the multiple magnetic pole is vertical with magnetic conduction backboard.The utility model proposes permanent magnet motor magnetic pole arrangement architecture magnetic flux by sinusoidal variations can be produced in armature winding when motor works, so that counter electromotive force of motor waveform has high sine degree, improve the stationarity of motor electromagnetic torque, and permanent magnet shape constraining conditional parameter is less, it is suitable for various motor sizes, there is very strong versatility.
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 rotor knot for the surface-mounted permanent magnet machine that sinusoidal magnetic flux can be produced in armature winding
Structure.
The permanent magnet motor magnetic pole arrangement architecture of the present utility model for producing sinusoidal magnetic flux includes magnetic conduction backboard and multiple magnetic
Pole, the magnetic pole are in lobate with certain thickness bar, and multiple magnetic poles continuously keep flat fixation successively along respective length direction substantially
On magnetic conduction backboard, length of each magnetic pole on its width vertical with length direction is in the sinusoidal rule of first half cycle
Change, the internal magnetic field of adjacent two magnetic poles is in opposite direction, and internal magnetic field direction and the magnetic conduction backboard of the multiple magnetic pole hang down
Directly.
Further, multiple pole end piece docking, which set and kept flat successively, is fixed on magnetic conduction backboard.
Wherein, symmetrical structure centered on each magnetic pole, there are top surface, bottom surface and two opposed side portions, two sides
Portion with top surface and plane perpendicular.
Wherein, the both ends of a side portion of each magnetic pole are respectively connected with the both ends of another side portion, form two
In the end of tip-angled shape.
Further, multiple magnetic poles are arranged on magnetic conduction backboard in two rows along its length, and adjacent pole is in its width
On stagger and be arranged in parallel.
Wherein, symmetrical structure centered on each magnetic pole, there are top surface, bottom surface and two opposed side portions, two sides
Portion with top surface and plane perpendicular.
Wherein, the both ends of a side portion of each magnetic pole are respectively connected with the both ends of another side portion, form two
In the end of tip-angled shape.
Further, the side portion has smooth structure.
Further, the side portion has step-like structure.
Further, the side portion has step-like structure, and two ends of each magnetic pole are formed with protrusion flat-head shape
End construction.
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 vertical of the first embodiment of the permanent magnet motor magnetic pole arrangement architecture of the present utility model for producing sinusoidal magnetic flux
Body figure；
Fig. 2 is the vertical of the second embodiment of the permanent magnet motor magnetic pole arrangement architecture of the present utility model for producing sinusoidal magnetic flux
Body figure；
Fig. 3 is the flat of the another embodiment of the permanent magnet motor magnetic pole arrangement architecture of the present utility model for producing sinusoidal magnetic flux
Face figure.
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.
First embodiment：
As shown in figure 1, the utility model proposes the permanent magnet motor magnetic pole arrangement architecture for producing sinusoidal magnetic flux
In one embodiment, the pole arrangement structure includes magnetic conduction backboard 1, the first magnetic pole 2 and the second magnetic pole 3, the first magnetic pole 2 and second
Magnetic pole 3 is in lobate with certain thickness bar, and relative continuously the keeping flat successively in L, end is fixed on magnetic conduction along its length
On backboard 1, i.e., in terms of the length direction perpendicular to magnetic conduction backboard 1, adjacent both ends portion 4 of first magnetic pole 2 with the second magnetic pole 3,5 phases
Connect, the length of the first magnetic pole 2 and the second magnetic pole 3 on its width W vertical with length direction L in first half cycle just
String rule changes, and the internal magnetic field of adjacent the first magnetic pole 2 and the second magnetic pole 3 is in opposite direction, the first magnetic pole 2 and the second magnetic pole 3
Internal magnetic field direction it is vertical with magnetic conduction backboard 1.
Specifically, the first magnetic pole 2 and the second magnetic pole 3 are identical, it is centrosymmetric structure, with top surface, bottom surface and two
Opposed smooth side portion, two side portions with top surface and plane perpendicular, the both ends of a side portion and another side
The both ends in portion are respectively connected with, and form two ends 4,5 in tip-angled shape.The docking of end 4,5 of adjacent two magnetic poles 2,3 is set
Put, the top surface of the first magnetic pole 2 is N poles, and bottom surface is S poles, and the top surface of the second magnetic pole is S poles, and bottom surface is N poles.
In the embodiment in figure 1, two magnetic poles be illustrate only --- first, second magnetic pole 2,3 tactic examples, this
Art personnel are appreciated that can be multiple in first, second magnetic pole 2 shown in Fig. 1,3 both sides splicing sequence straight lines settings
Identical magnetic pole, the arrangement mode between arrangement mode and first, second magnetic pole 2,3 is identical, the inside of two adjacent magnetic poles
Magnetic direction is on the contrary, can be used for linear electric motors；If being used for barrel-shaped motor, magnetic pole encompasses barrel-shaped arrangement.
In the motor course of work, magnetic pole is along the direction of motion (direction of motion is the length direction L of magnetic pole) inswept pole shoe
Boundary line, pole shoe boundary line are generally perpendicular to the direction of motion, because the length on the width W of each magnetic pole is in first half cycle
Sinusoidal rule changes, then the line length of the magnetic pole section of inswept pole shoe boundary line changes into sinusoidal rule.
The lobate magnetic pole of bar in the present embodiment has smooth side portion structure, the sine of caused sinusoidal air-gap field
Degree is more preferable, and magnetic pole is also easier to process.
In addition, in the present embodiment, intersection of the first, second lobate magnetic pole 2,3 in tip-angled shape end can produce Lou
Magnetic, therefore, in order to reduce leakage field, when arranging first, second magnetic pole 2,3, it can stagger and put down on the width W of magnetic pole
Row sets first, second magnetic pole 2,3 so that the end 4,5 of first, second magnetic pole 2,3 can mutually stagger, as shown in Figure 3.It is right
In the situation of multiple magnetic poles, multiple magnetic poles are arranged on magnetic conduction backboard in two rows along its length, and adjacent pole is in its width side
Stagger and be arranged in parallel upwards.Equally, in a second embodiment, similar setting can also be carried out.
Second embodiment：
In another embodiment of the present utility model, as shown in Fig. 2 the pole arrangement structure include magnetic conduction backboard 11,
First magnetic pole 12 and the second magnetic pole 13, first, second magnetic pole 2,3 be in have certain thickness bar it is lobate, along its length L,
Relative the keeping flat successively in end is fixed on magnetic conduction backboard 11, and the first and second magnetic poles 2,3 are in its width vertical with length direction L
The length spent on the W of direction changes in the sinusoidal rule of first half cycle, the inner magnet of the first adjacent magnetic pole 12 and the second magnetic pole 13
Field direction is on the contrary, the first magnetic pole 12 is vertical with magnetic conduction backboard 11 with the internal magnetic field direction of the second magnetic pole 13.
Wherein, unlike first embodiment, the first magnetic pole 12 and the second magnetic pole 13 are respectively provided with top edge from the center
Its length direction L extends to the step-like side portion 16 at both ends, both ends formed with protrusion flat-head shape end 14,
15, the docking of end 14,15 of adjacent two magnetic poles 12,13 is set.
In the embodiment of fig. 2, two magnetic poles be illustrate only --- first, second magnetic pole 12,13 tactic examples,
It will be understood by those skilled in the art that it can be set in first, second magnetic pole 12 shown in Fig. 2,13 both sides splicing sequence straight lines
Multiple identical magnetic poles, the arrangement mode between arrangement mode and first, second magnetic pole 12,13 is identical, can be used for straight-line electric
Machine；If being used for barrel-shaped motor, magnetic pole encompasses barrel-shaped arrangement.
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 (10)
1. 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：The magnetic pole is in lobate with certain thickness bar, and multiple magnetic poles continuously keep flat and are fixed on successively along respective length direction
On magnetic conduction backboard, length of each magnetic pole on its width vertical with length direction becomes in the sinusoidal rule of first half cycle
Change, the internal magnetic field of adjacent two magnetic poles is in opposite direction, and the internal magnetic field direction of the multiple magnetic pole 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 docking of multiple pole end pieces set and
Keep flat and be fixed on magnetic conduction backboard successively.
3. permanent magnet motor magnetic pole arrangement architecture as claimed in claim 2, it is characterised in that：Symmetrical junction centered on each magnetic pole
Structure, has top surface, bottom surface and a two opposed side portions, two side portions with top surface and plane perpendicular.
4. permanent magnet motor magnetic pole arrangement architecture as claimed in claim 3, it is characterised in that：One side portion of each magnetic pole
Both ends and the both ends of another side portion are respectively connected with, and form two ends in tip-angled shape.
5. permanent magnet motor magnetic pole arrangement architecture as claimed in claim 1, it is characterised in that：Multiple magnetic poles are in two along its length
Row is arranged on magnetic conduction backboard, and adjacent pole staggers and be arranged in parallel in the width direction.
6. permanent magnet motor magnetic pole arrangement architecture as claimed in claim 5, it is characterised in that：Symmetrical junction centered on each magnetic pole
Structure, has top surface, bottom surface and a two opposed side portions, two side portions with top surface and plane perpendicular.
7. permanent magnet motor magnetic pole arrangement architecture as claimed in claim 6, it is characterised in that：One side portion of each magnetic pole
Both ends and the both ends of another side portion are respectively connected with, and form two ends in tip-angled shape.
8. the permanent magnet motor magnetic pole arrangement architecture as described in claim 3,4,6 or 7, it is characterised in that：The side portion has
Smooth structure.
9. the permanent magnet motor magnetic pole arrangement architecture as described in claim 3,4,6 or 7, it is characterised in that：The side portion has
Step-like structure.
10. the permanent magnet motor magnetic pole arrangement architecture as described in claim 3 or 6, it is characterised in that：The side portion has step
Shape structure, two ends of each magnetic pole are formed with the end construction in protrusion flat-head shape.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720516336.2U CN206759192U (en) | 2017-05-09 | 2017-05-09 | A kind of permanent magnet motor magnetic pole arrangement architecture for producing sinusoidal magnetic flux |
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| CN201720516336.2U CN206759192U (en) | 2017-05-09 | 2017-05-09 | A kind of permanent magnet motor magnetic pole arrangement architecture for producing sinusoidal magnetic flux |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108231328A (en) * | 2017-12-28 | 2018-06-29 | 合肥硬核派科技有限公司 | A kind of disk type electric motor rotor rotates magnetizing equipment |
-
2017
- 2017-05-09 CN CN201720516336.2U patent/CN206759192U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108231328A (en) * | 2017-12-28 | 2018-06-29 | 合肥硬核派科技有限公司 | A kind of disk type electric motor rotor rotates magnetizing equipment |
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| Date | Code | Title | Description |
|---|---|---|---|
| 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. |
|
| 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: 20171215 Pledgee: Tongling state credit financing Company limited by guarantee Pledgor: Tongling hardcore Technology Co.,Ltd. Registration number: Y2022980013076 |
|
| 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 |