CN205992805U - Rotor, stator and motor - Google Patents
Rotor, stator and motor Download PDFInfo
- Publication number
- CN205992805U CN205992805U CN201620841674.9U CN201620841674U CN205992805U CN 205992805 U CN205992805 U CN 205992805U CN 201620841674 U CN201620841674 U CN 201620841674U CN 205992805 U CN205992805 U CN 205992805U
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- Prior art keywords
- rotor
- tooth
- stator
- flank
- dentalation
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Abstract
This utility model discloses a kind of rotor, stator and motor, wherein, rotor includes rotor body, the circumferential part of close stator is had on rotor body, dentalation is provided with circumferential part, dentalation includes the rotor tooth that the circumference in some circumferentially portions sets gradually, rotor tooth has first flank of tooth of the direction of rotation towards rotor and second flank of tooth of the dorsad direction of rotation of rotor, wherein, the width of first flank of tooth is more than the width of second flank of tooth.Stator includes stator body, stator body arranges some stator tooths near one end of rotor, stator tooth has the 3rd flank of tooth of the direction of rotation towards rotor and the 4th flank of tooth of the dorsad direction of rotation of rotor, and wherein, the width of the 3rd flank of tooth is less than the width of the 4th flank of tooth.Rotor in motor and stator are selected one and are adopted dentalation.This utility model passes through setting on rotor or stator and has directive dentalation, can be with lifting motor torque current ratio, and motor iron loss does not increase simultaneously, effective lifting motor performance and characteristic.
Description
Technical field
This utility model is related to technical field of motors, more particularly, to a kind of rotor, stator and motor.
Background technology
At present, the development of permagnetic synchronous motor reaches its maturity, and its performance also steps up, and is therefore widely used in each
Industry.But the performance of permagnetic synchronous motor needs for constantly being lifted, the ever-increasing market demand so could be met.
The performance of lifting permagnetic synchronous motor is realized by controller mostly, for example, solves to start hardly possible by controller
Topic, a fluctuation of speed difficult problem, the defect making up torque pulsation, raising torque current ratio etc..And improve from design of electrical motor source, have
Level beneficial to whole product improves, and reduces to control driving difficulty.Wherein, the torque current ratio of lifting motor, is an up motor
Stock utilization and a key of performance.
Subregion domain analysiss are carried out in electromagnetic action to the rotor of existing permagnetic synchronous motor, partly torque is exported
For just contributing, partly play magnetic conduction effect, no torque output capability substantially, the predominantly negative contribution of part, therefore existing permanent magnetism
The torque current ratio of synchronous motor is relatively low, leads to input current larger, copper olse, controller loss also larger, impact electricity
Machine performance development.
Utility model content
A purpose of the present utility model is to provide a kind of rotor, and it can on the premise of not increasing motor iron loss effectively
The torque current ratio of lifting motor, and then lift the performance of whole motor.
Another purpose of the present utility model is to provide a kind of stator, and it can be with the torque current ratio of lifting motor.
Another purpose of the present utility model is to provide a kind of motor, and its torque current is higher, and input current is less,
The loss of copper loss and controller is little.
For reaching this purpose, this utility model employs the following technical solutions：
On the one hand, a kind of rotor is provided, including rotor body, described rotor body has the circumferential part of close stator,
Dentalation is provided with described circumferential part, described dentalation includes what some circumferences along described circumferential part set gradually
Rotor tooth, described rotor tooth has first flank of tooth of the direction of rotation towards rotor and the second tooth of the dorsad direction of rotation of rotor
Face, wherein, the width of described first flank of tooth is more than the width of described second flank of tooth.
On the other hand, also provide a kind of stator, including stator body, if described stator body is arranged near one end of rotor
Dry stator tooth, described stator tooth have the direction of rotation towards rotor the 3rd flank of tooth and dorsad the direction of rotation of rotor the 4th
The flank of tooth, wherein, the width of described 3rd flank of tooth is less than the width of described 4th flank of tooth.
Another further aspect, also provides a kind of motor, including rotor and stator, wherein, rotor adopt rotor as above or
Stator adopts stator as above.
The beneficial effects of the utility model are：This utility model passes through setting on rotor or stator and has directive tooth
Shape structure, can remove negative contribution, increase and just contribute, and torque portions will not be contributed to be converted into and just contribute, and then lifting motor
Torque current ratio, simultaneously motor iron loss do not increase, effective lifting motor performance and characteristic.
Brief description
Fig. 1 is the structural representation of the rotor described in this utility model one embodiment.
Fig. 2 is the structural representation of the rotor described in another embodiment of this utility model.
Fig. 3 is the close-up schematic view at the X in Fig. 2.
Fig. 4 is the structural representation of the rotor described in the another embodiment of this utility model.
Fig. 5 is the close-up schematic view at the Y in Fig. 4.
Fig. 6 is the structural representation of the stator described in this utility model embodiment.
Fig. 7 is the close-up schematic view at the Z in Fig. 6.
Fig. 8 is the close-up schematic view at the W in Fig. 7.
In Fig. 1 to 8：
110th, rotor body；120th, rotor tooth；121st, first flank of tooth；122nd, second flank of tooth；123rd, crown circle；124th, tooth root
Circle；130th, trimming portion；140th, rotor interpolar；150th, rotor joint；160th, equivalent circular；170th, magnet steel groove；
210th, stator body；220th, stator tooth；221st, the 3rd flank of tooth；222nd, the 4th flank of tooth.
Specific embodiment
It is to be understood that the orientation of the instruction such as term " outward ", " interior " or position relationship in description of the present utility model
It is based on orientation shown in the drawings or position relationship, be for only for ease of description this utility model and simplify description, rather than refer to
Show or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not manage
Solution is to restriction of the present utility model.
Additionally, term " first ", " second ", " the 3rd ", " the 4th " are only used for describing purpose, and it is not intended that instruction or
Hint relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", " second ", "
Three ", the feature of " the 4th " can be expressed or implicitly include one or more this feature.
In description of the present utility model, unless otherwise clearly defined and limited, term " connection ", " fixation " should be done extensively
Reason and good sense solution is for example, it may be being fixedly connected or being detachably connected or integral；Can be mechanically connected it is also possible to
It is electrical connection；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, can be two element internals connection or
The interaction relationship of two elements.For the ordinary skill in the art, above-mentioned term can be understood with concrete condition
Concrete meaning in this utility model.
Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings and by specific embodiment.
As shown in Fig. 1 is to 5, a kind of rotor of offer of this utility model embodiment, including rotor body 110, rotor body
There is on 110 the circumferential part of close stator, dentalation is provided with circumferential part, dentalation includes some circumferentially portions
The rotor tooth 120 that circumference sets gradually, rotor tooth 120 has first flank of tooth 121 of the direction of rotation towards rotor and dorsad turns
Second flank of tooth 122 of the direction of rotation of son, wherein, the width of first flank of tooth 121 is more than the width of second flank of tooth 122.By
On rotor body 110, setting has directive dentalation, that is, towards the face width of tooth of the direction of rotation of rotor, dorsad rotation side
To the flank of tooth narrow, rotor can be made on the premise of equivalent external diameter does not increase, remove negative contribution, increase and just contribute, and will not tribute
Offer torque portions and be converted into and just contribute, and then lifting motor torque current ratio, motor iron loss does not increase, effective lifting motor simultaneously
Performance and characteristic.
In the present embodiment, rotor is applied to inner rotor motor, and now circumferential part is arranged on the outer rim of rotor body 110,
I.e. dentalation is arranged on the outer rim of rotor body 110.But rotor is not limited to be applied to inner rotor motor, can also be applied to
External rotor electric machine, when rotor is applied to external rotor electric machine, circumferential part is arranged on the inner edge of rotor body, i.e. dentalation setting
Inner edge in rotor body.
In an embodiment of the present utility model, as shown in figure 1, the week of the circumferential part along rotor body 110 for the dentalation
To annular setting.By by dentalation along the circumferential part of rotor body 110 circumference annular setting so that whole rotor body
110 circumferential part is all coated by dentalation, so can make whole rotor lifting motor while not increasing motor iron loss
Torque current ratio, and then the performance of lifting motor.
In a preferred embodiment of the present utility model, as shown in Figures 2 and 3, the week of the circumferential part of rotor body 110
To the multiple dentalation of interval setting, the effectively extremely wide area just to a rotor pole of rotor body 110 for each dentalation
Domain, has trimming portion 130 between two neighboring dentalation, trimming portion 130 is just to the rotor interpolar 140 of rotor body 110
Region.By arranging trimming portion 130 in the region of rotor interpolar 140, trimming portion 130 makes the rotor body 110 in this region
Rotor tooth 120 is not provided with circumferential part, that is, trimming portion 130 is formed every magnetic bridge, every magnetic bridge can effectively reduce torque pulsation,
Reduce leakage field.
In the present embodiment, the length in trimming portion 130 is axially extending along rotor body 110.Axially extending tool herein
Body refers to that trimming portion 130 can be along the axially consecutive of rotor body 110 or interruption setting, when trimming portion 130 is along rotor body 110
During axially consecutive setting, the length in trimming portion 130 and the equal length of rotor body 110 are described；When trimming portion 130 is along rotor basis
During the axial direction interruption setting of body 110, illustrate that the length in trimming portion 130 is less than the length of rotor body 110.Above-mentioned situation is only limitted to
Rotor tooth 120 is that (rotor tooth 120 specifically refers to rotor for straight tooth structure along the axially arranged straight tooth structure of rotor body 110
The length direction of tooth 120 and the diameter parallel of rotor body 110), if rotor tooth 120 is provided on rotor body 110
(axis that rotor tooth 120 specifically refers to the length direction of rotor tooth 120 and rotor body 110 for helical teeth structure is or not helical teeth structure
Parallel), then, trimming portion 130 is arranged between two neighboring dentalation along the length direction of rotor tooth 120.
The circumferential angle of rotor body 110 shared by rotor tooth 120 is A, and wherein, 12 °/P ＜ 17.2 °/P of A ＜, P are rotor
Number of pole-pairs, the circumferential angle of each effectively extremely wide shared rotor body is D, 100 °/P ＜ 110 °/P of D ＜.In the present embodiment,
The effectively extremely wide width referring to the corresponding part producing electrode effect of a rotor pole of rotor, as shown in Fig. 2 a rotor pole
For a magnet steel groove 170 in rotor body 110, it can produce on the part of electrode effect and the circumferential part of rotor body 110
Each dentalation of setting is corresponding.By the circumferential angle A of rotor body 110 shared by rotor tooth 120 is set to 12 °/P
17.2 ° of ＜ A ＜, can make whole rotor while not increasing motor iron loss by motor torque electric current than lifting 23%, greatly
Lifting motor performance.
In the present embodiment, number of pole-pairs P=2 of rotor, corresponding, and the quantity in trimming portion 130 is four.One rotor pole
For a magnet steel groove 170 in rotor body 110, each pair rotor pole of rotor is made up of two different magnet steel grooves 170 of magnetic pole,
Each magnet steel groove 170 is just provided with dentalation to the part of the circumferential part of rotor body 110.Therefore, 8.6 ° of 6 ° of ＜ A ＜,
55 ° of 50 ° of ＜ D ＜.
First flank of tooth 121 is the circular arc of the side protrusion at the center being directed away from rotor body 110, and the diameter of circular arc is little
In equivalent circular 160 diameter of rotor, wherein, the width of second flank of tooth 122 is F, and L ＜ F ＜ 5L/3, L are motor effective air gap width
Degree, motor effective air gap width refers to the distance between equivalent circular 160 of stator and rotor in motor.
In the present embodiment, rotor tooth 120 has crown and tooth root, and the center of circle of rotor body 110 is to crown and to tooth root
Range difference be rotor tooth 120 the high B of tooth, L/4 ＜ B ＜ L, wherein, L be motor effective air gap width.Specifically, rotor body
The circumference that 110 crown is located is crown circle 123, and the circumference that the tooth root of rotor body 120 is located is root circle 124, and crown is justified
123 is all concentric with the center of circle of rotor body 110 with the center of circle of root circle 124.
In another embodiment of the present utility model, the present embodiment is essentially identical with the structure of above-described embodiment, difference
Be only that, in the present embodiment, the crown of rotor tooth 120 is scabbled process, as shown in Figures 4 and 5, first flank of tooth 121 away from turn
One end of sub- body 110 is connected by rotor joint 150 away from one end of rotor body 110 with second flank of tooth 122.By inciting somebody to action
Both first flank of tooth 121 and second flank of tooth 122 are connected by rotor joint 150 away from one end of rotor body 110, that is, cut
The tip portions of rotor tooth 120, so can improve rotor manufacturability, reduce assembly difficulty.Rotor joint 150 and rotor
Spacing between equivalent circular 160 is G, E/2 ＜ G ＜ E, E≤B/2, and wherein, E is the crown circle of the tip portions of rotor tooth 120
123 the distance between with the equivalent circular 160 of rotor.Preferably, rotor joint 150 is arcuate structure or planar structure.
In the present embodiment, the length of rotor joint 150 extends along the length direction of rotor tooth 120.Extension herein
Refer to rotor joint 150 continuously or on the length direction being arranged on rotor tooth 120 of interruption, if continuous arranged, then
The length of rotor joint 150 is equal to the length of rotor tooth 120, if interruption setting, then the length of rotor joint 150 is little
Length in rotor tooth 120.
This utility model embodiment also provides a kind of stator, and as shown in Fig. 6 is to 8, this stator includes stator body 210, fixed
Sub- body 210 arranges some stator tooths 220 near one end of rotor, and stator tooth has the 3rd tooth of the direction of rotation towards rotor
4th flank of tooth 222 of the direction of rotation of face 221 and dorsad rotor, wherein, the width of the 3rd flank of tooth 221 is less than the 4th flank of tooth 222
Width.Directive dentalation is had by setting on stator body 210, and the flank of tooth of the direction of rotation towards rotor
Narrow, the dorsad face width of tooth of direction of rotation, can be with lifting motor torque current ratio, motor iron loss does not increase simultaneously, effectively lifts electricity
Machine performance and characteristic.
In the present embodiment, stator body 210 is concaved with arc sections near one end of rotor, some stator tooths 220
Arcuate directions along arc sections are successively set in arc sections.
In a preferred embodiment of the present utility model, the 3rd flank of tooth 221 is away from one end and the of stator body 210
Four flank of tooth 222 pass through the connection of stator connecting portion (not shown), the length of stator connecting portion away from one end of stator body 210
Length direction along stator tooth 220 extends.By by both the 3rd flank of tooth 221 and the 4th flank of tooth 222 away from stator body 210
One end is connected by stator connecting portion, that is, cut the crown of stator tooth, so can improve stator manufacturability, reduces assembling difficult
Degree.
Embodiment of the present utility model also provides a kind of motor, and motor includes stator and rotor, and wherein rotor is using as above
The rotor of embodiment, is provided with dentalation on rotor, the structure of rotor can refer to Fig. 1 to 5 and above-described embodiment, herein not
Repeat the concrete structure of rotor again, and stator is using the structure of conventional stator.
Embodiment of the present utility model also provides a kind of motor, and motor includes stator and rotor, and wherein stator is using as above
The stator of embodiment, is provided with dentalation on stator, the structure of stator can refer to Fig. 6 to 8 and above-described embodiment, herein not
Repeat the concrete structure of stator again, and rotor is using the structure of conventional rotor.
In a preferred embodiment of the present utility model, when stator is provided with dentalation, rotor turn
Outer rim interval setting multiple trimming portion of sub- body, the region just to the rotor interpolar of rotor body for the trimming portion.
In the present embodiment, the length in described trimming portion is axially extending along described rotor body.
Describe know-why of the present utility model above in association with specific embodiment.These descriptions are intended merely to explain this reality
With new principle, and the restriction to this utility model protection domain can not be construed to by any way.Based on explanation herein,
Those skilled in the art does not need to pay performing creative labour and can associate other specific embodiment of the present utility model,
These modes fall within protection domain of the present utility model.
Claims (14)
1. a kind of rotor, including rotor body it is characterised in that the circumferential part of close stator is had on described rotor body,
Dentalation is provided with described circumferential part, what described dentalation included that some circumferences along described circumferential part set gradually turns
Sub- tooth, described rotor tooth has first flank of tooth of the direction of rotation towards rotor and the second tooth of the dorsad direction of rotation of rotor
Face, wherein, the width of described first flank of tooth is more than the width of described second flank of tooth.
2. rotor according to claim 1 it is characterised in that described dentalation along described rotor body described circumference
The circumference annular setting in portion.
3. rotor according to claim 1 is it is characterised in that the circumferentially-spaced of described circumferential part of described rotor body sets
Put multiple described dentalations, the effectively extremely wide area just to a rotor pole of described rotor body for each described dentalation
Domain, has trimming portion between two neighboring described dentalation, described trimming portion is just to the rotor interpolar of described rotor body
Region.
4. rotor according to claim 3 is it is characterised in that the circle of each described effectively extremely wide shared described rotor body
All angles are D, 100 °/P ＜ 110 °/P of D ＜, and wherein, P is the number of pole-pairs of rotor.
5., it is characterised in that described rotor tooth has crown and tooth root, described rotor is originally for rotor according to claim 1
The high B of tooth, L/4 ＜ B ＜ L that the center of circle of body is described rotor tooth to described crown with the range difference to described tooth root, wherein, L is
The effective air gap width of motor.
6. rotor according to claim 1 it is characterised in that described first flank of tooth away from described rotor body one end with
Described second flank of tooth is connected by rotor joint away from one end of described rotor body.
7. rotor according to claim 6 is it is characterised in that between the equivalent circular of described rotor joint and described rotor
Spacing be G, E/2 ＜ G ＜ E, E≤B/2, wherein, E be between the crown of described rotor tooth and the equivalent circular of described rotor away from
From B is that the tooth of described rotor tooth is high.
8. the rotor according to any one of claim 1 to 7 is it is characterised in that described first flank of tooth is described in being directed away from
The circular arc that the side at the center of rotor body is protruded, the diameter of described circular arc is not more than the equivalent diameter of a circle of described rotor.
9. the rotor according to any one of claim 1 to 7 is it is characterised in that described rotor body shared by described rotor tooth
Circumferential angle be A, wherein, 12 °/P ＜ 17.2 °/P of A ＜, P be rotor number of pole-pairs.
10. the rotor according to any one of claim 1 to 7 is it is characterised in that the width of described second flank of tooth is F, L ＜ F
＜ 5L/3, wherein, L is the effective air gap width of motor.
A kind of 11. stators, including stator body it is characterised in that described stator body is some fixed near one end of rotor setting
Sub- tooth, described stator tooth has the 3rd flank of tooth of the direction of rotation towards rotor and the 4th tooth of the dorsad direction of rotation of rotor
Face, wherein, the width of described 3rd flank of tooth is less than the width of described 4th flank of tooth.
12. stators according to claim 11 it is characterised in that described 3rd flank of tooth away from described stator body one end
It is connected by stator connecting portion away from one end of described stator body with described 4th flank of tooth.
A kind of 13. motors, including rotor and stator it is characterised in that described rotor is using as any one of claim 1 to 10 institute
The rotor stated or described stator are using the stator as described in any one of claim 11 to 12.
14. motors according to claim 13 are it is characterised in that the stator body of described stator is near the one of described rotor
End arranges some stator tooths, and the rotor body of described rotor has the circumferential part near described stator, the circumference of described circumferential part
Interval setting multiple trimming portion, the region just to the rotor interpolar of described rotor body for the described trimming portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620841674.9U CN205992805U (en) | 2016-08-04 | 2016-08-04 | Rotor, stator and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620841674.9U CN205992805U (en) | 2016-08-04 | 2016-08-04 | Rotor, stator and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205992805U true CN205992805U (en) | 2017-03-01 |
Family
ID=58106109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620841674.9U Expired - Fee Related CN205992805U (en) | 2016-08-04 | 2016-08-04 | Rotor, stator and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205992805U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106208425A (en) * | 2016-08-04 | 2016-12-07 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor, stator and motor |
-
2016
- 2016-08-04 CN CN201620841674.9U patent/CN205992805U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106208425A (en) * | 2016-08-04 | 2016-12-07 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor, stator and motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170301 |
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| CF01 | Termination of patent right due to non-payment of annual fee |