CN207339456U - A kind of rotor and motor - Google Patents
A kind of rotor and motor Download PDFInfo
- Publication number
- CN207339456U CN207339456U CN201720541246.9U CN201720541246U CN207339456U CN 207339456 U CN207339456 U CN 207339456U CN 201720541246 U CN201720541246 U CN 201720541246U CN 207339456 U CN207339456 U CN 207339456U
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- China
- Prior art keywords
- dovetail groove
- permanent magnet
- motor
- rotor
- gap
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Abstract
The utility model discloses a kind of rotor and motor, wherein, rotor includes main body and permanent magnet, and main body wall is equipped with dovetail groove；Permanent magnet is embedded in the dovetail groove, and is fixed by the dovetail groove；Gap is equipped between the permanent magnet and the dovetail groove.Motor includes above-mentioned rotor.Permanent magnet and dovetail groove are arranged at intervals by the utility model, are made therebetween there are gap, in this way, leakage field phenomenon can be reduced.
Description
Technical field
Motor field is the utility model is related to, is specially a kind of rotor and motor.
Background technology
Common motor contains permanent magnet, as outer rotor motor outer rotor usually by tubular rotor case and
Set of permanent magnets on the inside of the rotor case is into the permanent magnet is fixed on rotor by way of bonding or screw fastens
On the inner wall of housing, the excitation field of rotor is consequently formed, when needing motor that there is low-speed big output, is generally required
Increase the number of permanent magnet, to optimize the distribution of permanent magnet, eliminate or reduce pulsating torque, copper loss and iron loss are reduced, in this feelings
Under condition, to be fixed only by the installation for bonding progress permanent magnet, cohesive fastness is poor, and reliability is low, is unfavorable for ensureing quality,
And by carrying out screw fastening to permanent magnet, not only the installation exercise amount of permanent magnet is big, but also since permanent magnet machinability is poor,
Also production cost is largely improved, reduces reliability, it is difficult to ensures quality.
In this regard, a kind of permanent magnetism mounting structure exists in the prior art, as Chinese patent literature CN204089387U is disclosed
Permanent magnet embedding structure, it sets some axially extending dovetail grooves on rotor case inner wall, permanent magnet cross section is set
Be set to the shape to match with the dovetail groove, and permanent magnet be inlaid in dovetail groove so that permanent magnet circumferential direction by
It is firm and stable in the case of power, improve the fixed effect of permanent magnet.However, in this kind of mounting structure, permanent magnet fills completely
It is full of in dovetail groove, i.e., permanent magnet is directly contacted with dovetail groove, and the magnetic resistance of dovetail groove is smaller, thus the leakage field circuit of permanent magnet
Magnetic resistance is smaller, and magnetic conduction leakage field phenomenon is serious.
Utility model content
Therefore, the technical problems to be solved in the utility model is to overcome the leakage field circuit magnetic resistance of permanent magnet in the prior art
It is smaller, the problem of magnetic conduction leakage field phenomenon is serious, so as to provide a kind of rotor.
A kind of rotor, including：
Housing, wall are equipped with dovetail groove；
Permanent magnet, is embedded in the dovetail groove, and is fixed by the dovetail groove；
Gap is equipped between the permanent magnet and the dovetail groove.
Further, the permanent magnet is fixed clamped by the opening portion of the dovetail groove, and the permanent magnet is sector, its
Arc length longer end is accommodated in the dovetail groove.
Further, the permanent magnet is magnetic shoe.
Further, the magnetic shoe number of poles is 14 poles.
Further, the gap is between the dovetail groove cell wall and/or slot bottom and the magnetic shoe.
Further, the permanent magnet is located at the body that the volume inside the dovetail groove is more than outside the dovetail groove
Product so that the center of gravity of the permanent magnet is accommodated in inside the dovetail groove.
Further, fastener is additionally provided between the permanent magnet and the dovetail groove, for fixing the permanent magnet.
Further, the fastener is trip bolt.
A kind of motor, including stator, further include above-mentioned rotor.
Further, the design speed of the motor is 14000r/min-18000r/min.
The utility model at least has the following advantages relative to the prior art：
1. permanent magnet and dovetail groove are arranged at intervals by the utility model, make therebetween there are gap, in this way, can reduce Lou
Magnetic phenomenon.
2. the center of gravity of permanent magnet is accommodated in the inside of dovetail groove by the utility model so that motor in the running, permanent magnet
It is not easy to depart from dovetail groove, is conducive to the steady running of motor.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical solution of the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, describe below
In attached drawing be the utility model some embodiments, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is the structure diagram of the utility model rotor；
Fig. 2 is the A portions enlarged drawing of Fig. 1；
Description of reference numerals：
1- permanent magnets；2- housings；3- gaps one；4- gaps two.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, sheet
Field those of ordinary skill all other embodiments obtained without making creative work, belong to this practicality
Novel protected scope.
, it is necessary to explanation in the description of the utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
Described for the ease of description the utility model and simplifying, rather than instruction or imply signified device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for description purpose, and it is not intended that instruction or hint relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in the description of the utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can mechanically connect or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other
Not forming conflict can be combined with each other.
Embodiment one：
A kind of rotor, including：
Housing 2, wall are equipped with dovetail groove；
Permanent magnet 1, is embedded in the dovetail groove, and is fixed by the dovetail groove；
Gap is equipped between the permanent magnet 1 and the dovetail groove.In this way, between due to being equipped between permanent magnet and dovetail groove
Gap, that is to say, that be not directly contacted between permanent magnet and dovetail groove, so as to prevent the magnetism of permanent magnet via dovetail groove, housing
And leak, so as to prevent the decline of motor working performance.
The permanent magnet 2 is fixed clamped by the opening portion of the dovetail groove, and the permanent magnet is sector, its arc length is longer
End is accommodated in the dovetail groove.In this way, in one end insertion dovetail groove of the longer dimension of permanent magnet, and by the slot of dovetail groove
Card is set so that permanent magnet is securely fixed by dovetail groove, and permanent magnet will not occur with the rotation of motor and rock or even come off.
In the present embodiment, the permanent magnet is magnetic shoe, and in an alternative embodiment, permanent magnet can also be other
Has magnetic medium.Further, the magnetic shoe number of poles is 14 poles.Since the series of motor is more, common method is not
It can guarantee that magnetic shoe is not fallen off, and use the mechanism of this programme to can be very good to ensure that magnetic shoe is stablized in motor operation course.
In the present embodiment, the gap is between the dovetail groove cell wall and/or slot bottom and the magnetic shoe.Namely
Say there may be gap 1 between the cell wall and magnetic shoe of dovetail groove, there may also be gap two between dovetail groove slot bottom and magnetic shoe
One of 4, gap 1, gap 24 can exist at the same time, can also only exist；In the present embodiment, gap 1, gap 24 are at the same time
In the presence of in this way, leakage field phenomenon can be reduced farthest.
The permanent magnet 1 is located at the volume that the volume inside the dovetail groove is more than outside the dovetail groove so that
The center of gravity of the permanent magnet is accommodated in inside the dovetail groove.Since the center of gravity of permanent magnet is accommodated in the inside of dovetail groove so that
In the running, permanent magnet is not easy to depart from dovetail groove motor, is conducive to the steady running of motor.
Fastener is additionally provided between the permanent magnet 1 and the dovetail groove, for fixing the permanent magnet.In order to further
Prevent rocking or even coming off for permanent magnet 1, fastener is additionally provided between permanent magnet 1 and dovetail groove, fastener can be to appoint
The fastener of meaning form, in the present embodiment, fastener is trip bolt.
Embodiment two：
A kind of motor, including stator, further include above-mentioned rotor.In the present embodiment, the design speed of the motor
For 14000r/min-18000r/min.Since the rotating speed of motor is higher, common method does not ensure that permanent magnet is not fallen off,
And the structure of the utility model ensure that stabilization of the permanent magnet in motor operation course well.
Obviously, the above embodiments are merely examples for clarifying the description, and the restriction not to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among the protection domain that variation is created still in the utility model.
Claims (10)
1. a kind of rotor, including：
Main body, side wall are equipped with dovetail groove；
Permanent magnet, is embedded in the dovetail groove, and is fixed by the dovetail groove；
It is characterized in that：Gap is equipped between the permanent magnet and the dovetail groove.
2. rotor according to claim 1, it is characterised in that：The permanent magnet is by the opening portion institute of the dovetail groove
Grip, the permanent magnet is sector, its arc length longer end is accommodated in the dovetail groove.
3. rotor according to claim 2, it is characterised in that：The main body is housing, and the dovetail groove is arranged on institute
State the inner wall of housing；The permanent magnet is magnetic shoe.
4. rotor according to claim 3, it is characterised in that：The magnetic shoe number of poles is 14 poles.
5. rotor according to claim 4, it is characterised in that：The gap be located at the dovetail groove cell wall and/or
Between slot bottom and the magnetic shoe.
6. according to claim 1-5 any one of them rotors, it is characterised in that：The permanent magnet is located at the dovetail groove
Internal volume is more than the volume outside the dovetail groove so that the center of gravity of the permanent magnet is accommodated in the dovetail groove
Portion.
7. rotor according to claim 6, it is characterised in that：It is additionally provided between the permanent magnet and the dovetail groove
Fastener, for fixing the permanent magnet.
8. rotor according to claim 7, it is characterised in that：The fastener is trip bolt.
9. a kind of motor, including stator, it is characterised in that：Further include claim 1-8 any one of them rotors.
10. motor according to claim 9, it is characterised in that：The design speed of the motor is 14000r/min-
18000r/min。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720541246.9U CN207339456U (en) | 2017-05-16 | 2017-05-16 | A kind of rotor and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720541246.9U CN207339456U (en) | 2017-05-16 | 2017-05-16 | A kind of rotor and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207339456U true CN207339456U (en) | 2018-05-08 |
Family
ID=62375780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720541246.9U Active CN207339456U (en) | 2017-05-16 | 2017-05-16 | A kind of rotor and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207339456U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112564357A (en) * | 2020-11-03 | 2021-03-26 | 超音速智能技术(杭州)有限公司 | Outer rotor single-phase motor |
-
2017
- 2017-05-16 CN CN201720541246.9U patent/CN207339456U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112564357A (en) * | 2020-11-03 | 2021-03-26 | 超音速智能技术(杭州)有限公司 | Outer rotor single-phase motor |
| CN112564357B (en) * | 2020-11-03 | 2022-01-07 | 超音速智能技术(杭州)有限公司 | Outer rotor single-phase motor |
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