CN206149051U - Permanent -magnet machine , rotor and rotor core thereof - Google Patents
Permanent -magnet machine , rotor and rotor core thereof Download PDFInfo
- Publication number
- CN206149051U CN206149051U CN201621137293.9U CN201621137293U CN206149051U CN 206149051 U CN206149051 U CN 206149051U CN 201621137293 U CN201621137293 U CN 201621137293U CN 206149051 U CN206149051 U CN 206149051U
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- Prior art keywords
- permanent magnet
- rotor
- magnet embedded
- embedded groove
- rotor core
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Abstract
The utility model discloses a permanent -magnet machine, rotor and rotor core thereof, rotor core include iron core body (1) and are located a plurality of permanent magnet embedded grooves on iron core body (1), it is a plurality of at least, the permanent magnet embedded groove that includes two kinds of structures and/or variation in size in the permanent magnet embedded groove. The utility model provides a rotor core is owing to include the permanent magnet embedded groove of two kinds of structures and/or variation in size at least for at least including the permanent magnet of two kinds of structures and/or variation in size on the rotor so that the rotor outside the flux distribution of the different amplitudes of circumference appearance. At the rotatory in -process of rotor, stator poles the coil induction play alternating voltage's amplitude is different to in the position that starts moving in -process discernment rotor at the motor, and, can distribute through different permanent magnets and introduce some specific harmonic component, produce some specific frequency's harmonic torque to in making the motor play the effect of adaptation fluctuating load and suppressing vibration and noise.
Description
Technical field
This utility model is related to motor device technical field, more particularly to a kind of magneto, rotor and its rotor core.
Background technology
Magneto is used as a kind of multipole polyphase machine, it has also become one of wide variety of motor.At present, magneto
Magnetic Circuit Design and circuit design are all symmetric design, to guarantee motor operation stability, obtain the optimum runnability of motor.
As shown in Figures 1 and 2, the rotor core of permanent magnet machine rotor include iron core body 1, on iron core body 1 have with
The permanent magnet embedded groove 2 that permanent magnet matches.Wherein, the structure and size all same of multiple permanent magnet embedded grooves 2, also, forever
The structure of magnet matches with the structure of permanent magnet embedded groove 2.Therefore so that the structure of multiple permanent magnets of permanent magnet machine rotor
And size all same.Also, it is distributed relative to the centrosymmetry of the endoporus of iron core body 1.It is with the rotor with four permanent magnets
Example, d axles are 45 ° with the angle of q axles.Wherein, the d axles (d dotted lines in figure) of rotor are the centrage of permanent magnet, and (q is empty in figure for q axles
Line) for two adjacent permanent magnets centrage.
But, due to this symmetry so that rotor outer circle magnetic potential is evenly distributed (as shown in Figure 2), magneto starts
Position detection also be always a complexity logic control process, it is impossible to simply and easily recognize rotor position.Also, by
In the symmetrical of magnetic circuit and circuit so that machine shaft output torque is also cycle even variation, for some eccentric rotary pressures
The fluctuating load of contracting, can because motor exert oneself with load not homophase and occur some vibration and noise.
Therefore, how to be easy to rotor position sensing, adapt to fluctuating load, suppress vibration and noise, be people in the art
Member's problem demanding prompt solution.
Utility model content
In view of this, this utility model provides a kind of rotor core, in order to rotor position sensing, adapts to change negative
Carry, suppress vibration and noise.This utility model additionally provides a kind of rotor with above-mentioned rotor core and magneto.
For achieving the above object, this utility model provides following technical scheme：
A kind of rotor core, including iron core body and the multiple permanent magnet embedded grooves on the iron core body, it is special
Levy and be, two kinds of structures and/or permanent magnet embedded groove of different sizes are at least included in multiple permanent magnet embedded grooves.
Preferably, in above-mentioned rotor core, the two neighboring permanent magnet embedded groove is different permanent magnet embedded grooves.
Preferably, in above-mentioned rotor core, the permanent magnet embedded groove is arcuate groove, bar-shaped trough or fan groove.
Preferably, in above-mentioned rotor core, multiple permanent magnet embedded grooves include two kinds of permanent magnet embedded grooves, respectively
For long permanent magnet embedded groove and short permanent magnet embedded groove.
Preferably, in above-mentioned rotor core, circumference point of multiple permanent magnet embedded grooves along the iron core body endoporus
Cloth.
Preferably, in above-mentioned rotor core, multiple permanent magnet embedded grooves are along the iron core body endoporus centrosymmetry
Distribution.
Preferably, in above-mentioned rotor core, multiple permanent magnet embedded grooves are non-central right along the iron core body endoporus
Claim distribution.
This utility model additionally provides a kind of rotor, including the permanent magnet of rotor core and embedded its permanent magnet embedded groove,
The rotor core is the rotor core as described in above-mentioned any one.
Preferably, in above-mentioned rotor, the permanent magnet is ferrimagnet or rare-earth magnet.
This utility model additionally provides a kind of magneto, including rotor and stator, and the rotor turns for as above
Son.
It can be seen from above-mentioned technical scheme that, the rotor core that this utility model is provided, in multiple permanent magnet embedded grooves
At least include two kinds of structures and/or permanent magnet embedded groove of different sizes.It is being embedded in the permanent magnet embedded groove of rotor core
After the permanent magnet matched with its structure, the rotor of magneto is formed.Due at least including two kinds of structures and/or of different sizes
Permanent magnet embedded groove so that at least include two kinds of structures and/or permanent magnet of different sizes on rotor, in order to outside rotor
There is the magnetic flux distribution of different amplitudes in circumference.In rotor rotation process, magnetic pole of the stator it is coil-induced go out alternating voltage amplitude
It is different, in order to operate in electric motor starting during recognize rotor position；Also, due at least two kinds it is different forever
Magnet, can introduce some specific harmonic components by different permanent magnet distributions, and the harmonic wave for producing some characteristic frequency turns
Square, in order to make motor play the effect for adapting to fluctuating load and suppressing vibration and noise.
This utility model additionally provides a kind of rotor with above-mentioned rotor core and magneto.Due to above-mentioned rotor ferrum
Core has above-mentioned technique effect, and the rotor with above-mentioned rotor core and magneto should also have same technique effect,
This is no longer discussed in detail.
Description of the drawings
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, in the premise for not paying creative work
Under, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is a kind of structural representation of rotor core of the prior art；
Fig. 2 is a kind of rotor outer circle magnetic potential figure of the prior art；
The structural representation of the first rotor core that Fig. 3 is provided for this utility model embodiment；
The first rotor outer circle magnetic potential figure that Fig. 4 is provided for this utility model embodiment；
The structural representation of second rotor core that Fig. 5 is provided for this utility model embodiment；
Second rotor outer circle magnetic potential figure that Fig. 6 is provided for this utility model embodiment.
Specific embodiment
The utility model discloses a kind of rotor core, in order to rotor position sensing, adapts to fluctuating load, suppress vibration
And noise.This utility model additionally provides a kind of rotor with above-mentioned rotor core and magneto.
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of this utility model protection.
As shown in figures 3 to 6, this utility model provides a kind of rotor core, including iron core body 1 and positioned at iron core sheet
Multiple permanent magnet embedded grooves on body 1, at least include two kinds of structures and/or permanent magnetism of different sizes in multiple permanent magnet embedded grooves
Body embedded groove.
The rotor core that this utility model embodiment is provided, at least include in multiple permanent magnet embedded grooves two kinds of structures and/
Or permanent magnet embedded groove of different sizes.The permanent magnetism that matches with its structure is being embedded in the permanent magnet embedded groove of rotor core
After body, the rotor of magneto is formed.Due at least including two kinds of structures and/or permanent magnet embedded groove of different sizes so that
At least include two kinds of structures and/or permanent magnet of different sizes on rotor, in order to there are different amplitudes in rotor outer circle week
Magnetic flux distribution.In rotor rotation process, magnetic pole of the stator it is coil-induced go out alternating voltage amplitude it is different, in order in motor
The position of rotor is recognized during starting operating；Also, due at least two kinds different permanent magnets, can pass through different
Permanent magnet distribution introduces some specific harmonic components, the harmonic torque of some characteristic frequency is produced, in order to play motor
Adapt to fluctuating load and suppress the effect of vibration and noise.
Preferably, two adjacent permanent magnets embedded groove is different permanent magnet embedded grooves.By above-mentioned setting, in order to make
Magnet structure in two adjacent permanent magnets embedded groove and/or of different sizes, and then cause the magnetic pole of two adjacent permanent magnets
It is different, improve the accuracy of the position of identification rotor.By taking two kinds of permanent magnets as an example, two kinds of permanent magnets are arranged in a crossed manner.
Wherein, permanent magnet embedded groove can be arcuate groove, bar-shaped trough or fan groove.Wherein, in permanent magnet embedded groove and its
Magnet structure match, i.e. permanent magnet can be arc, bar shaped or sector.Other structures are may be arranged as, here is not
Tire out one by one again and state and within protection domain.
For the ease of processing, multiple permanent magnet embedded grooves include two kinds of permanent magnet embedded grooves, and respectively long permanent magnet is embedding
Enter groove 2 and short permanent magnet embedded groove 3.It is of course also possible to be set to three kinds or four kinds permanent magnet embedded grooves etc., here is no longer one by one
It is tired to state.
In the present embodiment, circle distribution of multiple permanent magnet embedded grooves along the endoporus of iron core body 1.By above-mentioned setting,
Effectively increase the stability of rotor rotation.
In the first embodiment, multiple permanent magnet embedded grooves are distributed along the endoporus centrosymmetry of iron core body 1.Such as Fig. 3 and
Shown in Fig. 4, permanent magnet embedded groove includes long permanent magnet embedded groove 2 and short permanent magnet embedded groove 3 and arranged in a crossed manner, long permanent magnet
The quantity of embedded groove 2 and short permanent magnet embedded groove 3 is two.Because permanent magnet embedded groove is along the endoporus center pair of iron core body 1
Claim distribution, i.e. the centrage of the centrage of two long permanent magnet embedded grooves 2 and two short permanent magnet embedded grooves 3 is through iron core
The center of circle of the endoporus of body 1 and the centrage of the centrage of long permanent magnet embedded groove 2 and short permanent magnet embedded groove 3, also, d axles and q
The angle of axle is still 45 °.Wherein, the d axles (d dotted lines in figure) of rotor are permanent magnet (the long permanent magnet embedded groove in the present embodiment
2) centrage, q axles are centrage (long permanent magnet embedded groove 2 and the short extended line of permanent magnet embedded groove 3 of two adjacent permanent magnets
Intersection point and iron core body 1 in central point of hole line).Because multiple permanent magnet embedded grooves are along the endoporus center pair of iron core body 1
Claim distribution so that permanent magnet centrage is still along rotor inner hole centrosymmetry.Due to long permanent magnet embedded groove 2 and short permanent magnet it is embedding
Enter the structure and/or cause not of uniform size (long permanent magnet embedded groove 2 in the present embodiment and the width of short permanent magnet embedded groove 3 of groove 3
Degree is different), short permanent magnet embedded groove 3 is shorter, therefore, corresponding rotor outer circle week magnetic potential can narrow, as shown in Figure 4.
In second embodiment, multiple permanent magnet embedded grooves are along the endoporus center asymmetric distribution of iron core body 1.Such as Fig. 5
And shown in Fig. 6, permanent magnet embedded groove includes long permanent magnet embedded groove 2 and short permanent magnet embedded groove 3 and arranged in a crossed manner, long permanent magnetism
The quantity of body embedded groove 2 and short permanent magnet embedded groove 3 is two.Because permanent magnet embedded groove is along the endoporus center of iron core body 1
Asymmetric distribution so that the centrage of the centrage of two long permanent magnet embedded grooves 2 and short permanent magnet embedded groove 3 is through iron core
The center of circle of the endoporus of body 1 and the centrage of the centrage of long permanent magnet embedded groove 2 and short permanent magnet embedded groove 3.But, d axles and q
The angle of axle is not 45 °.Wherein, the d axles (d dotted lines in figure) of rotor are permanent magnet (the long permanent magnet embedded groove in the present embodiment
2) centrage, q axles are centrage (long permanent magnet embedded groove 2 and the short extended line of permanent magnet embedded groove 3 of two adjacent permanent magnets
Intersection point and iron core body 1 in central point of hole line).Due to long permanent magnet embedded groove 2 and the structure of short permanent magnet embedded groove 3
And/or cause (long permanent magnet embedded groove 2 and the width of short permanent magnet embedded groove 3 in the present embodiment is different) not of uniform size, it is short
Permanent magnet embedded groove 3 is shorter, therefore, all magnetic potential positive-negative half-cycle length of rotor outer circle, and short permanent magnet embedded groove 3 is corresponding
The magnetic potential half period is short, also, the corresponding rotor outer circle of short permanent magnet embedded groove 3 week magnetic potential can narrow.
Can also as needed by multiple permanent magnet embedded grooves in other distributed architectures arrangement, here no longer tire out one by one state and
Within protection domain.
This utility model embodiment additionally provides a kind of rotor, including rotor core and embedded its permanent magnet embedded groove are forever
Magnet, rotor core is any one rotor core as described above.Because above-mentioned rotor core has above-mentioned technique effect, with above-mentioned
The rotor of rotor core should also have same technique effect, and here is no longer discussed in detail.
Preferably, permanent magnet is ferrimagnet or rare-earth magnet.Permanent magnet can also be set to other structures, here
No longer introduce one by one.
This utility model additionally provides a kind of magneto, including rotor and stator, and rotor is rotor as above.By
There is above-mentioned technique effect in above-mentioned rotor, the magneto with above-mentioned rotor should also have same technique effect, here
No longer it is discussed in detail.
It is understood that magneto is made up of stator and rotor, wherein, rotor is non-contacting to be coaxially inserted in stator
In inner circle.Respectively, it is arranged alternately and surrounds circular configuration for groove, tooth on the inside of the stator core of stator.Stator core is in technique
Then by folded riveting or welding multiple punching pieces can be made to constitute stator core by high velocity ram machine punching molding.Stator core
Groove be inserted into insulating paper, end is embedded in skeleton, then in each deep trouth of stator core block, along each ring gear coiling
Circle, to the coil of each tooth split-phase (such as A, B, C split-phase) is carried out, and by certain circuit connecting mode power supply terminal, stator are picked out
Just complete.Rotor is in blocks by the pattern Jing high velocity ram machines punching with shaft hole, permanent magnet embedded groove and rotor outer circle, then
Make multiple punching pieces constitute rotor core by folded riveting, permanent magnet is filled in into permanent magnet embedded groove, end arranges end plate, by riveting
Nail is fixed on permanent magnet between two end plates, forms rotor.
The stator of motor is fixed on pedestal, and the rotor of motor is fixed in rotating shaft, the inner ring of stator and the outer ring of rotor
After noncontact concentric alignment, the three phase mains of stator binding post access controller output, motor rotating operation, in order to stator
The amplitude that pole coil induces alternating voltage is different.
Each embodiment is described by the way of progressive in this specification, and what each embodiment was stressed is and other
The difference of 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 new using this practicality
Type.Various modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can in other embodiments be realized in the case of without departing from spirit or scope of the present utility model.Cause
This, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (10)
1. a kind of rotor core, including iron core body (1) and the multiple permanent magnet embedded grooves on the iron core body (1),
Characterized in that, at least including two kinds of structures and/or permanent magnet embedded groove of different sizes in multiple permanent magnet embedded grooves.
2. rotor core as claimed in claim 1, it is characterised in that the two neighboring permanent magnet embedded groove be it is different forever
Magnet embedded groove.
3. rotor core as claimed in claim 1, it is characterised in that the permanent magnet embedded groove be arcuate groove, bar-shaped trough or
Fan groove.
4. rotor core as claimed in claim 1, it is characterised in that multiple permanent magnet embedded grooves include two kinds of permanent magnetism
Body embedded groove, respectively long permanent magnet embedded groove (2) and short permanent magnet embedded groove (3).
5. the rotor core as described in any one of claim 1-4, it is characterised in that multiple permanent magnet embedded grooves are along described
The circle distribution of iron core body (1) endoporus.
6. rotor core as claimed in claim 5, it is characterised in that multiple permanent magnet embedded grooves are along the iron core body
(1) endoporus centrosymmetry distribution.
7. rotor core as claimed in claim 5, it is characterised in that multiple permanent magnet embedded grooves are along the iron core body
(1) endoporus non-centrosymmetry distribution.
8. the permanent magnet of a kind of rotor, including rotor core and embedded its permanent magnet embedded groove, it is characterised in that the rotor ferrum
Core is the rotor core as described in any one of claim 1-7.
9. rotor as claimed in claim 8, it is characterised in that the permanent magnet is ferrimagnet or rare-earth magnet.
10. a kind of magneto, including rotor and stator, it is characterised in that the rotor is as claimed in claim 8 or 9
Rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621137293.9U CN206149051U (en) | 2016-10-19 | 2016-10-19 | Permanent -magnet machine , rotor and rotor core thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621137293.9U CN206149051U (en) | 2016-10-19 | 2016-10-19 | Permanent -magnet machine , rotor and rotor core thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206149051U true CN206149051U (en) | 2017-05-03 |
Family
ID=58622968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621137293.9U Active CN206149051U (en) | 2016-10-19 | 2016-10-19 | Permanent -magnet machine , rotor and rotor core thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206149051U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111725925A (en) * | 2020-08-04 | 2020-09-29 | 珠海格力电器股份有限公司 | Single-phase permanent magnet self-starting motor and electric equipment with same |
| CN111082626B (en) * | 2020-01-09 | 2021-12-07 | 东华大学 | Brushless hybrid excitation synchronous generator with adjustable magnetic leakage |
-
2016
- 2016-10-19 CN CN201621137293.9U patent/CN206149051U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111082626B (en) * | 2020-01-09 | 2021-12-07 | 东华大学 | Brushless hybrid excitation synchronous generator with adjustable magnetic leakage |
| CN111725925A (en) * | 2020-08-04 | 2020-09-29 | 珠海格力电器股份有限公司 | Single-phase permanent magnet self-starting motor and electric equipment with same |
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