CN110535266A - A kind of efficient permanent magnet motor with rotation laminated type rotor - Google Patents
A kind of efficient permanent magnet motor with rotation laminated type rotor Download PDFInfo
- Publication number
- CN110535266A CN110535266A CN201910566828.6A CN201910566828A CN110535266A CN 110535266 A CN110535266 A CN 110535266A CN 201910566828 A CN201910566828 A CN 201910566828A CN 110535266 A CN110535266 A CN 110535266A
- Authority
- CN
- China
- Prior art keywords
- magnetic bridge
- rotor
- iron core
- bridge portion
- interior
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The present invention provides a kind of efficient permanent magnet motors with rotation laminated type rotor, in such a way that interval separates leakage magnetic circuit up and down, reduce the sectional area of leakage magnetic circuit, improve leakage field situation, then it is laminated by the way of being laminated using rotation, and rotor structure has suitable intensity, no structural failure risk.On the other hand, core stamping of the invention design is not necessarily to new die, and cost input is low, and response is fast.
Description
Technical field
The present invention relates to a kind of rotor cores for magneto, laminate the rotor that mode manufactures especially by rotation
Iron core, and the magneto with the rotor-support-foundation system.
Background technique
Permanent magnet synchronous motor is not necessarily to rotor additional excitation winding, motor entirety copper loss because it uses permanent magnet excitation
It significantly reduces, performance advantage is obvious, has been used widely.With the raising to performance requirement, surface-mount type ferrite permanent-magnet
The performance of motor is unable to satisfy use demand already.Though and use the materials such as neodymium iron boron that can obtain higher performance, due to neodymium
Iron boron material is rare, expensive, and competitiveness is limited, therefore embedded ferrite magnetic material magneto comes into being, and becomes electricity
The inexorable trend of machine development history.
Built-in permanent magnetic motor in the prior art, there are leakage magnetic circuits for core structure, and the part of magnetic property is caused to waste.
Though having many engineers and technicians proposes solution, the presence of leakage magnetic circuit is not completely eliminated yet.The prior art
It is electrically studied with Wolong more in patent document, more solution is proposed, as application No. is 201811379937.9
Chinese invention patent application, this patent document proposes to replace using two kinds of punchings laminate by the way of, a kind of punching can be preferably
Leakage magnetic circuit inside rotor core is eliminated, however another punching still has the presence of leakage magnetic circuit, and the integral strength to guarantee rotor,
There are the major parts of the core stamping of leakage magnetic circuit still accounting rotor.For another example application No. is 201811379943.4 Chinese invention is special
Benefit application, scheme and effect are similar to above scheme.
Summary of the invention
The purpose of the present invention is to provide a kind of rotation laminated type rotor core and its manufacturing methods, and have rotation folded
The magneto of pressure type rotor.
Technical scheme is as follows.
First aspect present invention provides a kind of rotor iron core lamination, including interior core stamping portion, outer iron core punching portion, outside every
Magnetic bridge portion and interior magnetic bridge portion；
Shown interior core stamping portion includes interior main body portion substantially annular in shape, and is distributed on the outside of the interior main body portion
Protruding portion；
Outer iron core punching portion includes multiple substantially in cricoid outer main part is fanned, and the multiple outer main part circumference is equal
Cloth arrangement；
The outer magnetic bridge portion is formed between adjacent outer main part；The interior magnetic bridge portion is formed in the interior iron core
Between punching portion and outer iron core punching portion, and it is alternately arranged with the outer magnetic bridge portion；
The outer magnetic bridge portion includes the outer magnetic bridge portion separated and the outer magnetic bridge portion not separated.
Preferably, the outer magnetic bridge portion of the partition and the outer magnetic bridge portion not separated are alternately arranged.
Preferably, the interior magnetic bridge portion includes the interior magnetic bridge portion separated and the interior magnetic bridge portion not separated.
Preferably, the outer magnetic bridge portion that the interior magnetic bridge portion of each partition does not separate with one at least is adjacent.
Second aspect of the present invention provides a kind of rotor core, including multiple according to any one of above technical scheme
Rotor iron core lamination；The rotor core is laminated along its axial-rotation by the multiple rotor iron core lamination and is formed.
Preferably, in the multiple rotor iron core lamination, the angle rotated between two neighboring rotor iron core lamination isWherein S is the number of poles of the rotor core, n 0,1,2 ...
Preferably, the outer magnetic bridge portion of the partition of each rotor iron core lamination not separating by adjacent rotor core stamping
Outer magnetic bridge portion covering.
Preferably, the interior magnetic bridge portion of the partition of each rotor iron core lamination not separating by adjacent rotor core stamping
Interior magnetic bridge portion covering.
Third aspect present invention provides a kind of manufacturing method of rotor core, includes the following steps:
Multiple rotor iron core laminations are provided, the rotor iron core lamination includes magnetic bridge portion；
The magnetic bridge portion of each rotor iron core lamination is separated at intervals；
The multiple rotor iron core lamination is laminated along its axial-rotation so that the partition of each rotor iron core lamination every
Magnetic bridge is covered by the magnetic bridge that do not separate of adjacent rotor core stamping respectively.
Fourth aspect present invention provides a kind of magneto, including permanent magnet, and appoints according in above technical scheme
Rotor core and stator module described in one.
Compared with prior art, the efficient permanent magnet motor with rotation laminated type rotor of the invention has the following advantages.
On the one hand, for the present invention by the reasonable partition to leakage magnetic circuit, the production technology laminated using rotation reaches drop leakage
The effect of magnetic, and rotor structure has suitable intensity, no structural failure risk.
On the other hand, core stamping of the invention design is carried out improving in prior art basis and be can be realized, without new
Mold, cost input is low, and response is fast.Simple production process, cost is without rising appreciably.
Detailed description of the invention
Fig. 1 is rotor iron core lamination schematic diagram in the prior art.
Fig. 2 is rotor iron core lamination schematic diagram according to the present invention.
Fig. 3 is that rotor iron core lamination two panels according to the present invention laminates schematic diagram.
Fig. 4 is the scheme schematic diagram of alternate embodiment according to the present invention.
Fig. 5 is effect picture after the three pieces of alternate embodiment scheme according to the present invention are rotor iron core laminated.
Specific embodiment
Term " rotation laminates " herein refers to rotor punching when laminating, and needs to rotate certain angle between piece and piece
Degree.
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments
It can be combined with each other at conflict.
Shown in FIG. 1 is rotor iron core lamination structure in the prior art, is leaked for the program in drop at two indicated in Fig. 1
Design improvement in terms of magnetic.Improvement 1, while guaranteeing rotor strength, the width of constriction magnetic bridge as far as possible, every magnetic
The place that circle marks at bridge, that is, improvement 1, that is, the path that leakage field passes through, make magnetic bridge be easier magnetic saturation, so that it may
The quantity by the magnetic line of force herein is reduced, guarantees load capacity.Improvement 2, principle is similar to improvement 1, and makes to leak
Magnetic circuit is narrower, and the length of the magnetic bridge of narrower width is longer also beneficial to leakage field is improved, so there is setting for improvement 2
Meter.
For scheme shown in FIG. 1 while considering leakage field design, although ensure that the intensity of rotor entirety, leakage magnetic circuit is still
There is improved space, exactly be directed to its shortcoming is made that improvement to the present invention.
As shown in Fig. 2, rotor core according to the present invention is laminated by rotor iron core lamination and is constituted.The rotor iron core lamination
Including interior core stamping portion, outer iron core punching portion, outer magnetic bridge portion and interior magnetic bridge portion；
Shown interior core stamping portion includes interior main body portion substantially annular in shape, and is distributed on the outside of the interior main body portion
Protruding portion；
Outer iron core punching portion includes multiple substantially in cricoid outer main part is fanned, and the multiple outer main part circumference is equal
Cloth arrangement；
The outer magnetic bridge portion is formed between adjacent outer main part；The interior magnetic bridge portion is formed in the interior iron core
Between punching portion and outer iron core punching portion, and it is alternately arranged with the outer magnetic bridge portion；
The outer magnetic bridge portion includes the outer magnetic bridge portion separated and the outer magnetic bridge portion not separated.
In a preferred embodiment, the outer magnetic bridge portion of the partition and the outer magnetic bridge portion not separated are alternately arranged
Column.
In a preferred embodiment, the interior magnetic bridge portion include partition interior magnetic bridge portion and do not separate it is interior every
Magnetic bridge portion.
In a preferred embodiment, the interior magnetic bridge portion of each partition does not separate with one at least outer every magnetic
Bridge portion is adjacent.
Rotor scheme according to Fig.2, outer magnetic bridge have 8, and interior magnetic bridge also has 8, inside and outside alternately partition
The mode of magnetic bridge achievees the effect that reduce leakage field to reduce the number of vias of leakage magnetic circuit.The mode of the present embodiment partition magnetic bridge
To separate an outer magnetic bridge, then separate an interior magnetic bridge, then in one outer magnetic bridge of partition, and so on, most end form
At design of the invention.It can be seen that the present invention, while realizing reduces leakage field effect, rotor punching changes more reasonable, punching
Mold slightly improves on original mold, is not necessarily to new die, and cost input is low, and response is fast.
It will be appreciated by those skilled in the art that although the present invention is by taking radially slotting magnet steel, 8 pole embedded rotors as an example, this
Invention is not limited to this.Technical solution of the present invention is not limited to the mode and number of poles limitation of such slotting magnet steel, is also extrapolated to
In other schemes.
After the rotor punching of such as Fig. 2 has designed, when production, staggered successively by way of rotating and laminating partition every magnetic
Bridge, the rotor core finally laminated are as shown in Figure 3.
In a preferred embodiment, it is revolved between two neighboring rotor iron core lamination in the multiple rotor iron core lamination
Turn angle beWherein S is the number of poles of the rotor core, n 0,1,2 ...
In a preferred embodiment, the outer magnetic bridge portion of the partition of each rotor iron core lamination is by adjacent rotor iron core
The outer magnetic bridge portion covering of punching not separated.
In a preferred embodiment, the interior magnetic bridge portion of the partition of each rotor iron core lamination is by adjacent rotor iron core
The interior magnetic bridge portion covering of punching not separated.
The rotation angle of embodiment as Figure 2-3 is 45 °, i.e.,Therein 8 be the pole of rotor
Number, n can be 0,1,2 ...
From figure 3, it can be seen that rotation laminate after each partition of rotor core magnetic bridge, by adjacent punching not every
Disconnected magnetic bridge is covered, thus structural strength in terms of can guarantee it is close with the scheme in Fig. 1-2, without having to worry about the reliable of structure
Property problem.
The design of rotor punching is in addition to the above design, the mode of similar interval partition, and the mode that rotation laminates
It is thought of as alternate embodiment of the invention.
Shown in Fig. 4 is a kind of alternate embodiment of the invention, and rotation laminates angle when being 45 °, after three pieces iron core laminated
Effect picture is as shown in figure 5, close with Fig. 3 effect.
In an embodiment similar with Fig. 4, when it is 90 ° that rotation, which laminates angle, two panels laminates rear effect picture also class
The magnetic bridge that the magnetic bridge shown in Fig. 5, that is, separated is not separated by adjacent punching is similar to cover.
To sum up it can be said that all similar embedded rotor permanent magnet motors of the invention, are separated using certain aturegularaintervals every magnetic
Bridge, rotate by a certain angle the scheme laminated, can be considered alternate embodiment of the invention.
Claims (10)
1. a kind of rotor iron core lamination, including interior core stamping portion, outer iron core punching portion, outer magnetic bridge portion and interior magnetic bridge
Portion；
Shown interior core stamping portion includes interior main body portion substantially annular in shape, and is distributed in prominent on the outside of the interior main body portion
Portion out；
Outer iron core punching portion includes multiple basic in the cricoid outer main part of fan, the multiple outer main part circumference uniform distribution row
Column；
The outer magnetic bridge portion is formed between adjacent outer main part；The interior magnetic bridge portion is formed in the interior core stamping
Between portion and outer iron core punching portion, and it is alternately arranged with the outer magnetic bridge portion；
The outer magnetic bridge portion includes the outer magnetic bridge portion separated and the outer magnetic bridge portion not separated.
2. rotor iron core lamination according to claim 1, which is characterized in that the outer magnetic bridge portion of the partition and do not separate
Outer magnetic bridge portion be alternately arranged.
3. rotor iron core lamination according to claim 1 or 2, which is characterized in that the interior magnetic bridge portion includes partition
Interior magnetic bridge portion and the interior magnetic bridge portion not separated.
4. rotor iron core lamination according to claim 3, which is characterized in that the interior magnetic bridge portion of each partition is at least
It is adjacent with the outer magnetic bridge portion that one is not separated.
5. a kind of rotor core, including multiple rotor iron core laminations described in any one of -4 according to claim 1；The rotor
Iron core is laminated along its axial-rotation by the multiple rotor iron core lamination and is formed.
6. rotor core according to claim 5, which is characterized in that two neighboring in the multiple rotor iron core lamination
The angle rotated between rotor iron core lamination isWherein S is the number of poles of the rotor core, n 0,1,
2……
7. rotor core according to claim 5 or 6, which is characterized in that the partition of each rotor iron core lamination it is outer every
Magnetic bridge portion is covered by the outer magnetic bridge portion of adjacent rotor core stamping not separated.
8. rotor core according to claim 7, which is characterized in that the interior magnetic bridge of the partition of each rotor iron core lamination
Portion is covered by the interior magnetic bridge portion of adjacent rotor core stamping not separated.
9. a kind of manufacturing method of rotor core, includes the following steps:
Multiple rotor iron core laminations are provided, the rotor iron core lamination includes magnetic bridge portion；
The magnetic bridge portion of each rotor iron core lamination is separated at intervals；
The multiple rotor iron core lamination is laminated along its axial-rotation so that the partition of each rotor iron core lamination every magnetic
Bridge is covered by the magnetic bridge that do not separate of adjacent rotor core stamping respectively.
10. a kind of permanent magnet machine rotor, including permanent magnet, and the rotor core according to any one of claim 5-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910566828.6A CN110535266A (en) | 2019-06-27 | 2019-06-27 | A kind of efficient permanent magnet motor with rotation laminated type rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910566828.6A CN110535266A (en) | 2019-06-27 | 2019-06-27 | A kind of efficient permanent magnet motor with rotation laminated type rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110535266A true CN110535266A (en) | 2019-12-03 |
Family
ID=68659641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910566828.6A Pending CN110535266A (en) | 2019-06-27 | 2019-06-27 | A kind of efficient permanent magnet motor with rotation laminated type rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110535266A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111463935A (en) * | 2020-04-26 | 2020-07-28 | 安美科(安徽)汽车电驱有限公司 | Rotor core and rotor and motor with same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2568578A2 (en) * | 2011-09-07 | 2013-03-13 | Samsung Electronics Co., Ltd. | Motor and washing machine having the same |
| CN103973003A (en) * | 2014-04-24 | 2014-08-06 | 广东威灵电机制造有限公司 | Rotor punching sheet, rotor core with same and motor |
| CN104079092A (en) * | 2014-06-24 | 2014-10-01 | 广东威灵电机制造有限公司 | Rotor core and motor with same |
| CN108768022A (en) * | 2018-07-13 | 2018-11-06 | 卧龙电气集团股份有限公司 | A kind of rotor punching, rotor core and motor |
-
2019
- 2019-06-27 CN CN201910566828.6A patent/CN110535266A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2568578A2 (en) * | 2011-09-07 | 2013-03-13 | Samsung Electronics Co., Ltd. | Motor and washing machine having the same |
| CN103973003A (en) * | 2014-04-24 | 2014-08-06 | 广东威灵电机制造有限公司 | Rotor punching sheet, rotor core with same and motor |
| CN104079092A (en) * | 2014-06-24 | 2014-10-01 | 广东威灵电机制造有限公司 | Rotor core and motor with same |
| CN108768022A (en) * | 2018-07-13 | 2018-11-06 | 卧龙电气集团股份有限公司 | A kind of rotor punching, rotor core and motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111463935A (en) * | 2020-04-26 | 2020-07-28 | 安美科(安徽)汽车电驱有限公司 | Rotor core and rotor and motor with same |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20191203 |