CN205901457U - Stator is towards piece and motor - Google Patents
Stator is towards piece and motor Download PDFInfo
- Publication number
- CN205901457U CN205901457U CN201620789622.1U CN201620789622U CN205901457U CN 205901457 U CN205901457 U CN 205901457U CN 201620789622 U CN201620789622 U CN 201620789622U CN 205901457 U CN205901457 U CN 205901457U
- Authority
- CN
- China
- Prior art keywords
- stator
- tooth
- boots portion
- tooth boots
- motor
- 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.)
- Active
Links
Abstract
The utility model provides a stator is towards piece and motor. This stator includes towards the piece: cyclic annular stator yoke and a plurality of stator tooths of being connected with cyclic annular stator yoke, a plurality of stator tooths arrange radially along cyclic annular stator yoke that the stator tooth includes first tooth boots portion and second tooth boots portion, and first tooth boots portion and second tooth boots portion set up for the central line of stator tooth asymmetricly. Because the utility model discloses a stator tooth boots portion has adopted asymmetric structure, consequently at the rotatory in -process of motor, has improved motor output torque magnetic flux hour for motor electromagnetic torque's minimum improves to some extent, does not simultaneously influence motor electromagnetic torque's maximum value, and then has realized that electromagnetic torque average value improves to some extent, and for symmetrical tooth boots structure, torque ripple further reduces.
Description
Technical field
This utility model is related to machine field, particularly to a kind of stator punching and motor.
Background technology
In prior art, generally Gas-gap Magnetic Field Resonance Wave is weakened using stator tooth trimming, to reduce and concentrate volume structure motor
Torque pulsation, and then improve the vibration noise of motor.Fig. 1 shows the structural representation of stator tooth of the prior art, such as Fig. 1
Shown, stator punching includes annular stator yoke 1 and the stator tooth 2 being connected with annular stator yoke 1, and wherein, stator tooth 2 is along stator yoke
Endoporus circumference is uniformly distributed, and the lower end (near diameter of stator bore side) of stator tooth 2 extends to circumferential direction and forms the first tooth boots
Portion 3 and the second tooth boots portion 4, and the two is with respect to the centrage 5 symmetrically mirror image distribution of stator tooth 2.But, determining using Fig. 1
Sub- tooth edging techniques are although air gap flux density harmonic wave can be weakened, but also reduce the magnetic flux of motor simultaneously, lead to motor to export
Torque capacity declines, and then have impact on the efficiency of motor.
Utility model content
This utility model provides a kind of stator punching and motor, during solving to adopt symmetrical tooth boots in prior art,
Although air gap flux density harmonic wave can be weakened, also reduce the magnetic flux of motor simultaneously, lead to motor output torque ability to decline,
And then have impact on the problem of the efficiency of motor.
For solving the above problems, as one side of the present utility model, there is provided a kind of stator punching, comprising: ring-type
Stator yoke and the multiple stator tooths being connected with annular stator yoke, multiple stator tooths are along the radial arrangement of annular stator yoke, stator tooth
Including the first tooth boots portion and the second tooth boots portion, the first tooth boots portion and the second tooth boots portion with respect to stator tooth centrage asymmetricly
Setting.
Preferably, stator tooth is only provided with trimming in the first tooth boots portion or the second tooth boots portion.
Preferably, the thickness in the first tooth boots portion is more than the thickness in the second tooth boots portion.
Preferably, stator tooth is located inside annular stator yoke, and the first tooth boots portion is provided with the first trimming, the second tooth boots portion
On be provided with the second trimming, the first trimming is less than the second trimming and stator tooth internal diameter with the maximum radial distance of stator tooth internal diameter
Maximum radial distance.
Preferably, the free end in the first tooth boots portion is more than the free end in the second tooth boots portion to centrage to the arc length of centrage
Arc length.
This utility model additionally provides a kind of motor, and including stator, wherein, described stator includes above-mentioned stator punching.
This utility model additionally provides a kind of motor, and including stator, wherein, described stator includes above-mentioned stator punching,
The side of the no trimming from the lateral stator tooth having trimming of stator tooth for the rotor of motor rotates.
This utility model additionally provides a kind of motor, and including stator, wherein, described stator includes above-mentioned stator punching,
The rotor of motor rotates from the second tooth boots portion to the direction in the first tooth boots portion.
This utility model additionally provides a kind of motor, and including stator, wherein, described stator includes above-mentioned stator punching,
The rotor of motor rotates from the second tooth boots portion to the direction in the first tooth boots portion.
This utility model additionally provides a kind of motor, and including stator, wherein, described stator includes above-mentioned stator punching,
The rotor of motor rotates from the second tooth boots portion to the direction in the first tooth boots portion.
Because stator tooth boots portion of the present utility model employs unsymmetric structure, therefore in motor rotary course, improve
Magnetic flux when motor output torque is minimum, so that the minima of motor electromagnetic torque increases, does not affect motor simultaneously
The maximum of electromagnetic torque, and then achieve electromagnetic torque meansigma methodss and increase, and with respect to symmetric teeth boots structure, torque
Pulsation reduces further.
Brief description
Fig. 1 schematically shows the structural representation of stator punching of the prior art；
Fig. 2 schematically shows the structural representation of the stator punching in this utility model first embodiment；
Fig. 3 schematically shows the enlarged drawing of the stator tooth in this utility model first embodiment；
Fig. 4 schematically shows the structural representation of the stator punching in this utility model second embodiment；
Fig. 5 schematically shows the structural representation of the stator punching in this utility model 3rd embodiment；
Fig. 6 schematically shows the structural representation of the stator punching in this utility model fourth embodiment；
Fig. 7 schematically shows the comparison diagram of this utility model and the electromagnetic torque waveform of prior art；
Fig. 8 schematically shows tooth boots no trimming, symmetrical trimming and electromagnetic torque shape comparison diagram during asymmetric trimming；
Fig. 9 schematically shows tooth boots no trimming, symmetrical trimming and technique effect comparison diagram during asymmetric trimming.
In figure reference: 1, annular stator yoke；2nd, stator tooth；3rd, the first tooth boots portion；4th, the second tooth boots portion；5th, center
Line.
Specific embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but this utility model can be by right
The multitude of different ways limiting and covering is required to implement.
In prior art, the tooth boots portion of each stator tooth in stator punching is symmetrical arranged with regard to stator tooth centrage, that is,
It is mirror image relationship with regard to centrage, for reducing the torque pulsation of motor, generally adopt tooth boots portion's trimming structure to weaken air-gap field
Harmonic wave, but decrease the effective flux of motor so that motor is exerted oneself diminishes simultaneously.Due to the presence of air gap flux density harmonic wave,
The electromagnetic torque of motor is in the pulsating wave containing crest and trough, and the difference of crest and trough illustrates the torque pulsation of motor,
If the valley value that can make torque increases, and crest value is constant, it is possible to decrease the torque pulsation of motor, increases average electromagnetism simultaneously and turns
Square value.
Through researching and analysing discovery, the tooth boots portion of stator tooth centrage both sides have impact on peak value and the paddy of torque pulsation respectively
Value, when the tooth boots portion of both sides is set to dissymmetrical structure, it is possible to achieve improve torque valley value, ensures torque crest value simultaneously
Constant.
Refer to Fig. 2 to Fig. 6, this utility model provides a kind of stator punching, including annular stator yoke 1 and multiple along ring
The equally distributed stator tooth of circumference 2 of shape stator yoke 1, wherein, stator tooth 2 is along the radial direction of annular stator yoke 1 and annular stator yoke 1
Inner side connect.Certainly, stator tooth 2 also can be connected along the radial direction of annular stator yoke 1 with the outside of annular stator yoke 1.As Fig. 2 institute
Show, each stator tooth 2 includes the first tooth boots portion 3 and the second tooth boots portion 4, wherein, the equal edge in the first tooth boots portion 3 and the second tooth boots portion 4
Annular stator yoke 1 circumferentially extending, the first tooth boots portion 3 is located at the first side of the centrage of stator tooth 2, and 4, the second tooth boots portion
The second side in this centrage.Especially, in this utility model the first tooth boots portion 3 and the second tooth boots portion 4 with respect to stator tooth 2
Centrage 5 is asymmetricly arranged, and the two has different shapes in other words.Stator punching can using neodymium iron boron or ferrite or its
He makes permanent magnet material.
Fig. 7 shows the comparison diagram employing this utility model and electromagnetic torque during stator punching of the prior art.
As shown in fig. 7, because stator tooth boots portion of the present utility model employs unsymmetric structure, therefore in motor rotary course, carrying
Magnetic flux when high motor output torque is minimum, so that the minima of motor electromagnetic torque increases, does not affect electricity simultaneously
The maximum of dynamo-electric magnetic torque, and then achieve electromagnetic torque meansigma methodss and increase, and with respect to symmetric teeth boots structure, turn
Square pulsation reduces further.It is achieved that electromagnetic torque exports increase by 5% in this utility model embodiment, torque pulsation reduces
12%.It can be seen that, this utility model can improve motor torque fan-out capability while reducing motor torque ripple.
In order to realize above-mentioned unsymmetric structure, this utility model provides multiple embodiments.
In first embodiment shown in Fig. 3, stator tooth 2 is only in setting trimming, and does not have side to cut in another side,
That is being only provided with trimming a in the first tooth boots portion 3 or the second tooth boots portion 4.
In second embodiment shown in Fig. 4, it is more than the thickness in the second tooth boots portion 4 by the thickness h 1 making the first tooth boots portion 3
Degree h2 realizes above-mentioned unsymmetric structure.By adjusting the ratio of h1 and h2, motor capacity can be increased further.
In 3rd embodiment shown in Fig. 5, stator tooth 2 is located inside annular stator yoke 1, the first tooth boots portion 3 and second
It is provided with trimming, wherein, the trimming in the first tooth boots portion 3 is referred to as the first trimming, in the second tooth boots portion 4 in tooth boots portion 4
Trimming is referred to as the second trimming.In order to realize unsymmetric structure, the first trimming is little with the maximum radial distance d1 of stator tooth internal diameter
Maximum radial distance d2 in the second trimming and stator tooth internal diameter.By adjusting the ratio of d1 and d2, electricity can be reduced further
The torque pulsation of machine.
In fourth embodiment shown in Fig. 6, the arc length of the free end in the first tooth boots portion 3 to centrage is l1, the second tooth
The free end in boots portion 4 is l2 to the arc length of centrage, by making l1 > the above-mentioned unsymmetric structure of l2 construction.
It is enumerated above the concrete mode of four kinds of structure unsymmetric structures, certainly, those skilled in the art also can adopt it
His mode is building this unsymmetric structure, or even above-mentioned different embodiment is combined.For example, simultaneously from arc length, away from
In, thickness any at least two are combined, to expect to obtain superior technique effect.
This utility model additionally provides a kind of motor, and including stator, wherein, stator includes above-mentioned stator punching.For example,
For the embodiment shown in Fig. 3, the side of the rotor of the motor no trimming from the lateral stator tooth having trimming of stator tooth 2
Rotate.For the embodiment shown in Fig. 4, the rotor of motor rotates from the second tooth boots portion 4 to the direction in the first tooth boots portion 3.Right
For embodiment shown in Fig. 5, the rotor of motor rotates from the second tooth boots portion 4 to the direction in the first tooth boots portion 3.To shown in Fig. 6
Embodiment for, the rotor of motor rotates from the second tooth boots portion 4 to the direction in the first tooth boots portion 3.
Preferably, the motor stator core in this utility model is overrided to form by said stator punching, and rotor core can be
Conventional built-in structure rotor, winding connection determines according to number of stator slots and rotor number of poles.
Fig. 8 be tooth boots portion no trimming, the symmetrical trimming in tooth boots portion, the asymmetric trimming in tooth boots portion when electromagnetic torque emulation knot
Really.Compared with the no trimming of tooth boots portion, using prior art the symmetrical trimming structure in tooth boots portion when, the peak value of torque pulsation and valley
All there is reduction, the amplitude that peak value reduces is larger, therefore torque pulsation reduces 17%, but electromagnetic torque also reduces 5% simultaneously.Adopt
During with the asymmetric trimming structure in this utility model tooth boots portion, the peak value of torque pulsation reduces, and valley is basically unchanged, and torque pulsation is entered
One step reduction reaches 24%.Further, since asymmetric tooth boots structure, torque pulsation is from maximum to the change of the slope of minimum value changes
Slow, electromagnetic torque meansigma methodss increase, and emulation electromagnetic torque is identical with electromagnetic torque during no trimming, that is, more symmetrical trimming structure
Motor is exerted oneself increase 5%.
Fig. 9 show using tooth boots portion no trimming, the symmetrical trimming in tooth boots portion, the asymmetric trimming in tooth boots portion when electromagnetic torque
Simulation result with torque pulsation.As can be seen from Figure 9, using during asymmetric trimming in this utility model, electromagnetic torque keeps former
100% coming, and torque pulsation then drops to 76%.It can be seen that, permanent magnet consumption need not be increased using this utility model technology, both
Motor torque fan-out capability can be ensured, also can reduce the torque pulsation of motor simultaneously, improve electricity while not increasing cost
Engine efficiency.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for this
For the technical staff in field, this utility model can have various modifications and variations.All of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvement made etc., should be included within protection domain of the present utility model.
Claims (10)
1. a kind of stator punching is it is characterised in that include: annular stator yoke (1) and many with what described annular stator yoke (1) was connected
Individual stator tooth (2), the plurality of stator tooth (2) includes along the radial arrangement of described annular stator yoke (1), described stator tooth (2)
First tooth boots portion (3) and the second tooth boots portion (4), described first tooth boots portion (3) is fixed with respect to described with described second tooth boots portion (4)
The centrage of sub- tooth (2) is asymmetricly arranged.
2. stator punching according to claim 1 is it is characterised in that described stator tooth (2) is only in described first tooth boots portion
(3) it is provided with trimming (a) in or the second tooth boots portion (4).
3. stator punching according to claim 1 is it is characterised in that the thickness (h1) in described first tooth boots portion (3) is more than
The thickness (h2) in described second tooth boots portion (4).
4. stator punching according to claim 1 is it is characterised in that described stator tooth (2) is located in annular stator yoke (1)
Side, described first tooth boots portion (3) is provided with the first trimming, and described second tooth boots portion (4) is provided with the second trimming, and described
The maximum radial distance (d1) of one trimming and stator tooth internal diameter be less than the maximum radial of described second trimming and stator tooth internal diameter away from
From (d2).
5. stator punching according to claim 1 is it is characterised in that the free end in described first tooth boots portion (3) is extremely described
The arc length (l1) of centrage is more than the arc length (l2) of the free end in described second tooth boots portion (4) to described centrage.
6. a kind of motor, including stator it is characterised in that described stator includes the stator any one of claim 1 to 5
Punching.
7. a kind of motor, including stator it is characterised in that described stator includes the stator punching described in claim 2, described electricity
The rotor of machine rotates from the side having the one of the trimming lateral no trimming of described stator tooth (2) of described stator tooth (2).
8. a kind of motor, including stator it is characterised in that described stator includes the stator punching described in claim 3, described electricity
The rotor of machine rotates from described second tooth boots portion (4) to the direction in described first tooth boots portion (3).
9. a kind of motor, including stator it is characterised in that described stator includes the stator punching described in claim 4, described electricity
The rotor of machine rotates from described second tooth boots portion (4) to the direction in described first tooth boots portion (3).
10. a kind of motor, including stator it is characterised in that described stator includes the stator punching described in claim 5, described
The rotor of motor rotates from described second tooth boots portion (4) to the direction in described first tooth boots portion (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620789622.1U CN205901457U (en) | 2016-07-25 | 2016-07-25 | Stator is towards piece and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620789622.1U CN205901457U (en) | 2016-07-25 | 2016-07-25 | Stator is towards piece and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205901457U true CN205901457U (en) | 2017-01-18 |
Family
ID=57784514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620789622.1U Active CN205901457U (en) | 2016-07-25 | 2016-07-25 | Stator is towards piece and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205901457U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106067700A (en) * | 2016-07-25 | 2016-11-02 | 珠海格力节能环保制冷技术研究中心有限公司 | Stator punching and motor |
| CN110875678A (en) * | 2018-08-30 | 2020-03-10 | 广东美芝精密制造有限公司 | Permanent magnet synchronous motor and compressor |
| CN110875647A (en) * | 2018-08-30 | 2020-03-10 | 广东美芝精密制造有限公司 | Stator, synchronous motor and compressor |
-
2016
- 2016-07-25 CN CN201620789622.1U patent/CN205901457U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106067700A (en) * | 2016-07-25 | 2016-11-02 | 珠海格力节能环保制冷技术研究中心有限公司 | Stator punching and motor |
| CN110875678A (en) * | 2018-08-30 | 2020-03-10 | 广东美芝精密制造有限公司 | Permanent magnet synchronous motor and compressor |
| CN110875647A (en) * | 2018-08-30 | 2020-03-10 | 广东美芝精密制造有限公司 | Stator, synchronous motor and compressor |
| CN110875647B (en) * | 2018-08-30 | 2022-02-25 | 广东美芝精密制造有限公司 | Stator, synchronous motor and compressor |
| CN110875678B (en) * | 2018-08-30 | 2022-09-20 | 广东美芝精密制造有限公司 | Permanent magnet synchronous motor and compressor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101783559B (en) | Permanent magnet motor | |
| CN201107842Y (en) | Disc type switch reluctance motor | |
| CN106169822B (en) | Motor and its rotor structure | |
| CN105553143A (en) | Rotor iron core and permanent magnet synchronous motor with same | |
| CN110224567A (en) | Spoke permanent magnetic motor and its manufacturing method with reduced torque ripple | |
| CN205901457U (en) | Stator is towards piece and motor | |
| CN209730918U (en) | Rotor punching and motor | |
| CN106602825B (en) | Rotating electric machine | |
| CN105207382B (en) | A kind of rotor and the motor including the rotor | |
| CN105743251B (en) | A kind of rotor punching and magneto | |
| CN105391196A (en) | Brushless motor | |
| KR101721462B1 (en) | Wind power generator as well as stator core and stator core module thereof | |
| CN203014620U (en) | A permanent magnetic motor | |
| CN101588099B (en) | Permanent magnet rotary motor | |
| CN207134963U (en) | Rare-earth permanent-magnet electric machine and compressor | |
| CN103929026A (en) | Permanent magnet motor | |
| CN106067700A (en) | Stator punching and motor | |
| CN204304642U (en) | Electric rotating machine | |
| CN106160383A (en) | A kind of concentratred winding internal permanent magnet synchronous motor for new forms of energy car | |
| CN205407440U (en) | Rotor core and have its PMSM | |
| CN102664475A (en) | Low-fluctuation built-in permanent magnet rotor for brushless motor | |
| CN205489852U (en) | A. C. brushless double -fed motor | |
| CN208299658U (en) | Permanent magnet synchronous motor and compressor | |
| CN110611386B (en) | Motor rotor, motor and compressor | |
| CN203942429U (en) | Synchronous motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |