CN106712343A - Permanent magnet motor and rotor sectionalized oblique pole thereof - Google Patents
Permanent magnet motor and rotor sectionalized oblique pole thereof Download PDFInfo
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- CN106712343A CN106712343A CN201510508360.7A CN201510508360A CN106712343A CN 106712343 A CN106712343 A CN 106712343A CN 201510508360 A CN201510508360 A CN 201510508360A CN 106712343 A CN106712343 A CN 106712343A
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- pole
- permanent magnet
- rotating shaft
- permanent magnets
- rotor segment
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Abstract
The present invention discloses a permanent magnet motor and a rotor sectionalized oblique pole thereof. The rotor sectionalized oblique pole comprises a first rotation shaft end component, a plurality of permanent magnets and a second rotation shaft end component which are coaxially arranged sequentially along the axial direction of the rotor sectionalized oblique pole; the permanent magnets are all in the shape of solid cylinders; a magnetic flux-insulation baffle is arranged between two adjacent permanent magnets; the permanent magnets are fixed oppositely in the circumferential direction; a magnetic pole included angle between the center lines of the magnetic poles of two adjacent permanent magnets is Theta; and the rotor sectionalized oblique pole further comprises a jacket which sleeves the first rotation shaft end component, the permanent magnets and the second rotation shaft end component and is fixedly connected with the first rotation shaft end component, the permanent magnets and the second rotation shaft end component. The structure of the rotor sectionalized oblique pole is properly designed, so that the problem of structural complexity and axial magnetic flux leakage of a rotor sectionalized oblique pole structure can be solved.
Description
Technical field
The present invention relates to technical field of motor manufacture, more specifically to a kind of magneto and its turn
Sub- step skewed pole.
Background technology
Magneto is increasingly widely applied with its control accuracy advantage high in industrial circle,
Its power density and efficiency that can greatly improve motor.Yet with slot effect and the non-sine in magnetic field
Influence, magneto often be accompanied by larger tooth-harmonic emf, cogging torque, leverage electricity
The control accuracy of machine.In order to improve the control accuracy of motor, many magnetoes are using skewed stator slot and turn
Sub tiltedly pole, wherein skewed-rotor are divided into continuous oblique pole and step skewed pole, and the oblique pole low cost of rotor segment is adapted to
A large amount of productions.
The structure of step skewed pole of the prior art is all more complicated, and many step skewed poles all have axle
To the situation of leakage field, the stability of motor is have impact on.
In sum, the problem of the oblique pole complex structure of rotor segment and axial leakage field how is efficiently solved,
It is current those skilled in the art's urgent problem.
The content of the invention
In view of this, first purpose of the invention is to provide a kind of oblique pole of rotor segment, the rotor point
The structure design of the oblique pole of section can efficiently solve asking for the oblique pole complex structure of rotor segment and axial leakage field
Topic, second object of the present invention is to provide a kind of magneto including the oblique pole of above-mentioned rotor segment.
In order to reach above-mentioned first purpose, the present invention provides following technical scheme：
A kind of oblique pole of rotor segment, including along the oblique pole of the rotor segment axial direction sequentially coaxially set
One rotating shaft extremity piece, multiple permanent magnets and the second rotating shaft extremity piece, multiple permanent magnets are solid cylinder
It is provided with every magnetic baffle plate between shape and two adjacent permanent magnets, multiple permanent magnets are circumferentially opposed
Magnetic pole angle between the pole center line of two fixed and adjacent permanent magnets is θ；
Also include being set in the first rotating shaft extremity piece, multiple permanent magnets and the second rotating shaft extremity piece outside simultaneously
The sheath being fixedly connected with first rotating shaft extremity piece, multiple permanent magnets and the second rotating shaft extremity piece.
Preferably, during above-mentioned rotor segment is oblique extremely, the magnetic pole angle
θ=2 π/LCM (Z, 2p) * (N-1)/N, wherein Z are number of stator slots, and p is number of pole-pairs, and N is permanent magnet
Number, LCM (Z, 2p) represent Z and 2p least common multiple.
Preferably, above-mentioned rotor segment tiltedly extremely in, the permanent magnet with the abutting end every magnetic baffle plate
Be provided with the strip groove being radially arranged along it on face, and the both sides every magnetic baffle plate be provided with
The convex tendon that the strip groove coordinates.
Preferably, above-mentioned rotor segment tiltedly extremely in, the convex tendon every magnetic baffle plate both sides be staggered θ angles setting,
And the strip groove on the permanent magnet is vertically arranged with its magnetizing direction.
Preferably, during above-mentioned rotor segment is oblique extremely, the quantity of the permanent magnet is two and respectively first
Permanent magnet and the second permanent magnet.
Preferably, above-mentioned rotor segment tiltedly extremely in, the sheath and first rotating shaft extremity piece, multiple permanent magnets
And second rotating shaft extremity piece be interference fit.
Preferably, above-mentioned rotor segment tiltedly extremely in, the sheath and it is described between magnetic baffle plate for interference is matched somebody with somebody
Close.
Preferably, during above-mentioned rotor segment is oblique extremely, the sheath uses nickel-base alloy, titanium alloy or carbon
Fibrous material makes to be formed.
Preferably, during above-mentioned rotor segment is oblique extremely, the permanent magnet is formed using NdFeB material.
A kind of magneto, including as described above any one of the oblique pole of rotor segment.
The oblique pole of rotor segment that the present invention is provided includes first rotating shaft extremity piece, multiple permanent magnets, the second rotating shaft
Extremity piece, every magnetic baffle plate and sheath.Wherein, first rotating shaft extremity piece, multiple permanent magnets and the second rotating shaft end
Part sets gradually along the axial direction of the oblique pole of the rotor segment, and first rotating shaft extremity piece, multiple permanent magnet and
Second rotating shaft extremity piece is coaxially disposed, i.e. the oblique pole two ends of the rotor segment are respectively first rotating shaft extremity piece and second
One end of rotating shaft extremity piece, first rotating shaft extremity piece and the second rotating shaft extremity piece contacts with permanent magnet, and the other end can be with
It is connected with other parts, the connection of the oblique pole of the rotor segment and other parts is realized with this.
Multiple permanent magnets are filled circles column, and are provided with every magnetic between adjacent two permanent magnets
Baffle plate, the circumferentially opposed fixation of multiple permanent magnets can not be relatively rotated between that is, multiple permanent magnets.Separately
Outward, the magnetic pole angle between the pole center line of two adjacent permanent magnets is θ, and permanent magnet is parallel magnetization,
Its magnetizing direction is perpendicular to the axial direction that the axial direction of permanent magnet is the oblique pole of the rotor segment.Sheath is arranged on first
Rotating shaft extremity piece, multiple permanent magnet and the second rotating shaft extremity piece outside, and sheath and first rotating shaft extremity piece,
Multiple permanent magnets and the second rotating shaft extremity piece are fixedly connected with, and many of the oblique pole of the rotor segment are realized with this
Individual part is relatively fixed.
In the structure of the oblique pole of rotor segment that the present invention is provided, its multiple permanent magnet and two rotating shaft extremity pieces
By being fixedly connected being relatively fixed for the multiple parts for realizing the oblique pole of rotor segment with sheath, so enter
Luggage timing only fixes sheath and first rotating shaft extremity piece, multiple permanent magnets and the second rotating shaft extremity piece
Connection, simple and convenient, simple structure.In addition, being respectively provided between two adjacent permanent magnets
Have every magnetic baffle plate, the magnetic line of force between the permanent magnet that magnetic baffle plate can separate adjacent can so separate
Magnetic field conduction between permanent magnet, reaches axial direction magnetism isolating effect well, it is to avoid the situation of axial leakage field.
In order to reach above-mentioned second purpose, present invention also offers a kind of magneto, the magneto
Including any of the above-described kind of oblique pole of rotor segment.Because above-mentioned rotor segment tiltedly has above-mentioned technique effect,
Magneto with the oblique pole of the rotor segment should also have corresponding technique effect.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to reality
The accompanying drawing to be used needed for example or description of the prior art is applied to be briefly described, it should be apparent that, below
Accompanying drawing in description is only some embodiments of the present invention, for those of ordinary skill in the art,
On the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the explosive view of the oblique pole of rotor segment provided in an embodiment of the present invention；
Fig. 2 is the sectional view of the oblique pole of rotor segment provided in an embodiment of the present invention；
Fig. 3 is permanent magnet provided in an embodiment of the present invention and the explosive view every magnetic baffle plate；
Fig. 4 is the side view of permanent magnet provided in an embodiment of the present invention.
In figures 1-4：
1- first rotating shafts extremity piece, the permanent magnets of 2- first, 3- are every magnetic baffle plate, the permanent magnets of 4- second, second turn of 5-
Shaft end part, 6- sheaths, a- grooves, b- convex tendons.
Specific embodiment
First purpose of the invention is to provide a kind of oblique pole of rotor segment, the knot of the oblique pole of the rotor segment
Structure design can efficiently solve the problem of the oblique pole complex structure of rotor segment and axial leakage field, of the invention
Second purpose is to provide a kind of magneto including the oblique pole of above-mentioned rotor segment.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the invention, and
It is not all, of embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under the premise of creative work, belong to the scope of protection of the invention.
Refer to Fig. 1-Fig. 4, the oblique pole of rotor segment provided in an embodiment of the present invention include first rotating shaft extremity piece 1,
Multiple permanent magnets, the second rotating shaft extremity piece 5, every magnetic baffle plate 3 and sheath 6.Wherein, first rotating shaft extremity piece
1st, multiple permanent magnets and the second rotating shaft extremity piece 5 set gradually along the axial direction of the oblique pole of the rotor segment, and
First rotating shaft extremity piece 1, multiple permanent magnets and the second rotating shaft extremity piece 5 are coaxially disposed, i.e. the oblique pole of the rotor segment
Two ends are respectively the rotating shaft extremity piece 5 of first rotating shaft extremity piece 1 and second, the rotating shaft end of first rotating shaft extremity piece 1 and second
One end of part 5 is contacted with permanent magnet, and the other end can be connected with other parts, and the rotor point is realized with this
The oblique pole of section and the connection of other parts, between the rotating shaft extremity piece 5 of first rotating shaft extremity piece 1 and second and permanent magnet
Should be plane contact, and the rotating shaft extremity piece 5 of first rotating shaft extremity piece 1 and second uses non-magnet material system
Formed.
Multiple permanent magnets are filled circles column, and are provided with every magnetic between adjacent two permanent magnets
Baffle plate 3, the circumferentially opposed fixation of multiple permanent magnets can not be relatively rotated between that is, multiple permanent magnets.Separately
Outward, the magnetic pole angle between the pole center line of two adjacent permanent magnets is θ, and permanent magnet is parallel magnetization,
Its magnetizing direction is perpendicular to the axial direction that the axial direction of permanent magnet is the oblique pole of the rotor segment.Sheath 6 is arranged on
One rotating shaft extremity piece 1, multiple permanent magnets and the outside of the second rotating shaft extremity piece 5, and sheath 6 and first rotating shaft
Extremity piece 1, multiple permanent magnets and the second rotating shaft extremity piece 5 are fixedly connected with, and the rotor segment is realized with this
Multiple parts of oblique pole are relatively fixed.The wherein rotating shaft extremity piece 5 of first rotating shaft extremity piece 1 and second can be only
Be partially located in sheath 6 and be fixedly connected with sheath 6, the rotating shaft end of first rotating shaft extremity piece 1 and second it is another
An outer part exposes to sheath 6 and can be connected with other parts.
In the structure of the oblique pole of rotor segment provided in an embodiment of the present invention, its multiple permanent magnet and two turn
Shaft end part by being fixedly connected being relatively fixed for multiple parts for realizing the oblique pole of rotor segment with sheath 6,
Only by sheath 6 and first rotating shaft extremity piece 1, multiple permanent magnets and the second rotating shaft end when so being assembled
Part 5 is fixedly connected with, simple and convenient, simple structure.In addition, two adjacent permanent magnets it
Between be provided with every magnetic baffle plate 3, the magnetic line of force between the permanent magnet that magnetic baffle plate 3 can separate adjacent, such as
This can separate magnetic field conduction between permanent magnet, reach axial direction magnetism isolating effect well, it is to avoid axial direction
The situation of leakage field.
Wherein, between the pole center line of two adjacent permanent magnets magnetic pole angle theta=2 π/LCM (Z,
2p) * (N-1)/N, wherein Z are number of stator slots, and p is number of pole-pairs, and N is the number of permanent magnet, LCM (Z,
2p) represent the least common multiple of Z and 2p.Certainly, between the pole center line of two adjacent permanent magnets
Magnetic pole angle theta can also be set as predetermined angle, be not limited thereto.
In order to ensure the circumferentially opposed fixation between multiple permanent magnets, wherein can permanent magnet with every magnetic
The strip groove a being radially arranged along it, i.e. strip groove a is provided with the counterface of baffle plate 3 to be located at forever
Magnet with every on the face that magnetic baffle plate 3 is contacted, and strip groove a being radially arranged along permanent magnet, together
The convex tendon b with strip groove a male-female engagements is provided with after the both sides of magnetic baffle plate 3, assembling finishes rear convex tendon
B is fastened in strip groove a, is realized with this circumferentially fixed with the permanent magnet of its both sides every magnetic baffle plate 3, is entered
And ensure that the circumferentially fixed of multiple permanent magnets.
Further, the convex tendon b every the both sides of magnetic baffle plate 3 be staggered θ angles setting, i.e., between two bar shaped convex tendon b
Angle be that strip groove a on θ, and permanent magnet is vertically arranged with its magnetizing direction.So can be with profit
Positioned with the strip groove a on permanent magnet, prevent magnetizing direction from deviateing.
It is of course also possible to every strip groove a is opened up on magnetic baffle plate 3, set recessed with bar shaped on permanent magnet
The convex tendon b that groove a coordinates, is not limited thereto.Or, the projection every the both sides of magnetic baffle plate 3 is square, while
Square groove is set on permanent magnet, is not limited thereto.
In order to reduce production cost, simplify structure, as shown in figure 3, the permanent magnet of the oblique pole of the rotor segment
Quantity can be two, and two permanent magnets are respectively the first permanent magnet 2 and the second permanent magnet 4.In this way,
First rotating shaft extremity piece 1, the first permanent magnet 2, every magnetic baffle plate 3, the second permanent magnet 4 and the edge of the second rotating shaft extremity piece 5
The axial direction for the oblique pole of the rotor segment is sequentially coaxially set.Certainly, the quantity of permanent magnet can also be more
It is individual, such as three, four etc., it is not limited thereto.
Simplify structure in order to further, wherein sheath 6 and first rotating shaft extremity piece 1, multiple permanent magnets and the
Two rotating shaft extremity pieces 5 can be interference fit, so easily facilitate assembling.Certainly, sheath 6 and first turn
Shaft end part 1, multiple permanent magnets and the second rotating shaft extremity piece 5 can also be clamping or threaded connection,
This is not construed as limiting.
Further, in order to improve the intensity of the oblique pole of the rotor segment, sheath 6 and between magnetic baffle plate 3
It can be interference fit.
Wherein, sheath 6 can make to be formed using nickel-base alloy, titanium alloy or carbon fibre material.So
The intensity of sheath 6 can be ensured, allow it to protect the safety high speed of the oblique pole of the rotor segment to run.
Permanent magnet can be formed using NdFeB material, and certain permanent magnet can also have other materials to make
Formed, such as alnico alloy is not limited thereto.
Based on the oblique pole of rotor segment provided in above-described embodiment, present invention also offers a kind of magneto,
The magneto includes the oblique pole of any one rotor segment in above-described embodiment.Because the magneto is used
The oblique pole of rotor segment in above-described embodiment, so the beneficial effect of the magneto refer to above-mentioned reality
Apply example.
Each embodiment is described by the way of progressive in this specification, and each embodiment is stressed
The difference with other embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or use
The present invention.Various modifications to these embodiments will be for those skilled in the art aobvious and easy
See, generic principles defined herein can without departing from the spirit or scope of the present invention,
Realize in other embodiments.Therefore, the present invention is not intended to be limited to the embodiments shown herein,
And it is to fit to the most wide scope consistent with principles disclosed herein and features of novelty.
Claims (10)
1. the oblique pole of a kind of rotor segment, it is characterised in that including along the oblique pole of the rotor segment axially according to
The secondary first rotating shaft extremity piece (1) being coaxially disposed, multiple permanent magnets and the second rotating shaft extremity piece (5) are more
The individual permanent magnet is between filled circles column and two adjacent permanent magnets and is provided with every magnetic baffle plate
(3), the pole center line of multiple circumferentially opposed fixations of the permanent magnet and two adjacent permanent magnets
Between magnetic pole angle be θ；
Also include being set in the first rotating shaft extremity piece (1), multiple permanent magnets and the second rotating shaft extremity piece (5)
Outside simultaneously connects with first rotating shaft extremity piece (1), multiple permanent magnets and the fixation of the second rotating shaft extremity piece (5)
The sheath (6) for connecing.
2. the oblique pole of rotor segment according to claim 1, it is characterised in that the magnetic pole angle
θ=2 π/LCM (Z, 2p) * (N-1)/N, wherein Z are number of stator slots, and p is number of pole-pairs, and N is permanent magnet
Number, LCM (Z, 2p) represent Z and 2p least common multiple.
3. the oblique pole of rotor segment according to claim 1, it is characterised in that the permanent magnet with
It is described every being provided with the strip groove (a) that is radially arranged along it on the counterface of magnetic baffle plate (3),
And the both sides every magnetic baffle plate (3) are provided with the convex tendon (b) coordinated with the strip groove (a).
4. the oblique pole of rotor segment according to claim 3, it is characterised in that described every magnetic baffle plate (3)
The convex tendon (b) of both sides is staggered the setting of θ angles, and strip groove (a) on the permanent magnet magnetizes with it
Direction is vertically arranged.
5. the oblique pole of rotor segment according to claim 1, it is characterised in that the number of the permanent magnet
Measure as two and respectively the first permanent magnet (2) and the second permanent magnet (4).
6. the oblique pole of rotor segment according to claim 1, it is characterised in that the sheath (6)
Interference fit is with first rotating shaft extremity piece (1), multiple permanent magnets and the second rotating shaft extremity piece (5).
7. the oblique pole of rotor segment according to claim 6, it is characterised in that the sheath (6)
With it is described between magnetic baffle plate (3) be interference fit.
8. the oblique pole of rotor segment according to any one of claim 1-7, it is characterised in that described
Sheath (6) makes to be formed using nickel-base alloy, titanium alloy or carbon fibre material.
9. the oblique pole of rotor segment according to claim 8, it is characterised in that the permanent magnet is used
NdFeB material is formed.
10. a kind of magneto, it is characterised in that including turning as claimed in any one of claims 1-9 wherein
Sub- step skewed pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510508360.7A CN106712343B (en) | 2015-08-18 | 2015-08-18 | Magneto and its oblique pole of rotor segment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510508360.7A CN106712343B (en) | 2015-08-18 | 2015-08-18 | Magneto and its oblique pole of rotor segment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106712343A true CN106712343A (en) | 2017-05-24 |
| CN106712343B CN106712343B (en) | 2019-08-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510508360.7A Active CN106712343B (en) | 2015-08-18 | 2015-08-18 | Magneto and its oblique pole of rotor segment |
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| Country | Link |
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| CN (1) | CN106712343B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108462270A (en) * | 2018-03-06 | 2018-08-28 | 华中科技大学 | A kind of high speed permanent magnet motor rotor structure of shell-less |
| CN111725967A (en) * | 2020-07-02 | 2020-09-29 | 浙江省东阳市东磁诚基电子有限公司 | Magnetic pole suitable for columnar vibration motor and implementation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57186967A (en) * | 1981-05-13 | 1982-11-17 | Hitachi Ltd | Rotor with permanent magnet |
| JP2005295722A (en) * | 2004-04-01 | 2005-10-20 | Seiko Precision Inc | Rotor and motor with this rotor |
| CN102684337A (en) * | 2012-05-14 | 2012-09-19 | 浙江大学 | Subsection skewed-pole type permanent magnet synchronous motor rotor |
| CN204886466U (en) * | 2015-08-18 | 2015-12-16 | 珠海格力节能环保制冷技术研究中心有限公司 | Permanent -magnet machine and rotor segmentation is utmost point to one side thereof |
-
2015
- 2015-08-18 CN CN201510508360.7A patent/CN106712343B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57186967A (en) * | 1981-05-13 | 1982-11-17 | Hitachi Ltd | Rotor with permanent magnet |
| JP2005295722A (en) * | 2004-04-01 | 2005-10-20 | Seiko Precision Inc | Rotor and motor with this rotor |
| CN102684337A (en) * | 2012-05-14 | 2012-09-19 | 浙江大学 | Subsection skewed-pole type permanent magnet synchronous motor rotor |
| CN204886466U (en) * | 2015-08-18 | 2015-12-16 | 珠海格力节能环保制冷技术研究中心有限公司 | Permanent -magnet machine and rotor segmentation is utmost point to one side thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108462270A (en) * | 2018-03-06 | 2018-08-28 | 华中科技大学 | A kind of high speed permanent magnet motor rotor structure of shell-less |
| CN111725967A (en) * | 2020-07-02 | 2020-09-29 | 浙江省东阳市东磁诚基电子有限公司 | Magnetic pole suitable for columnar vibration motor and implementation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106712343B (en) | 2019-08-23 |
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Effective date of registration: 20190815 Address after: 519000 Guangdong city of Zhuhai Province Qianshan Co-patentee after: Zhuhai Gree Energy Saving & Refrigerating Technology Resarch Center Co., Ltd. Patentee after: GREE ELECTRIC APPLIANCES Inc. OF ZHUHAI Address before: 519070 Guangdong city of Zhuhai province Rooster Hill Road No. 789 Building 9 (Science Building) Patentee before: Zhuhai Gree Energy Saving & Refrigerating Technology Resarch Center Co., Ltd. |