CN109861479A - For improving the stator punching, stator and motor of resonance noise - Google Patents
For improving the stator punching, stator and motor of resonance noise Download PDFInfo
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- CN109861479A CN109861479A CN201910285553.9A CN201910285553A CN109861479A CN 109861479 A CN109861479 A CN 109861479A CN 201910285553 A CN201910285553 A CN 201910285553A CN 109861479 A CN109861479 A CN 109861479A
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- 238000004080 punching Methods 0.000 title claims abstract description 48
- 238000004804 winding Methods 0.000 claims abstract description 17
- 238000005520 cutting process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The invention discloses a kind of for improving the stator punching, stator and motor of resonance noise, wherein, stator punching includes the winding section in yoke portion, pole shoe and connection yoke portion and pole shoe, two planes of the bottom surface of pole shoe with the arc surface towards motor gas-gap and the both ends for being connected to arc surface, the top surface of pole shoe is m close to the distance between one end of winding slot notch and the elongated surfaces of arc surface, maximum distance between plane and the elongated surfaces of arc surface is n, set ratio k=n/m, wherein, 0≤k≤1.The problem of technical solution of the present invention is easy to produce resonance noise when can efficiently solve stator punching in the prior art work.
Description
Technical field
The present invention relates to stator punching technical fields, rush in particular to a kind of stator for improving resonance noise
Piece, stator and motor.
Background technique
The stator punching of existing single-phase asynchronous motor generally includes the coiling in yoke portion, pole shoe and connection yoke portion and pole shoe
Portion, pole shoe is towards the bottom surface of rotor generally arc surface, the motor gas formed between the center of circle and stator and rotor of the arc surface
The center of circle of gap is concentric.When the frequency of the intrinsic frequency of stator punching and extrinsic motivation is close, it is easy to be generated altogether in high band
Shake noise.
Summary of the invention
There is provided in the embodiment of the present invention it is a kind of for improving the stator punching, stator and motor of resonance noise, it is existing to solve
The problem of being easy to produce resonance noise when having the stator punching work in technology.
To achieve the above object, the present invention provides a kind of for improving the stator punching of resonance noise, including yoke portion, pole
The bottom surface of the winding section in boots and connection yoke portion and pole shoe, pole shoe with the arc surface towards motor gas-gap and is connected to
Two planes at the both ends of arc surface, the top surface of pole shoe between one end of winding slot notch and the elongated surfaces of arc surface away from
From for m, the maximum distance between plane and the elongated surfaces of arc surface is n, sets ratio k=n/m, wherein 0≤k≤1.
Further, the end of pole shoe has inclined-plane, and the top surface of pole shoe is connect by inclined-plane with plane, the elongated surfaces on inclined-plane
The distance between the intersecting lens of the elongated surfaces of arc surface and plane are n.
Further, the end of pole shoe has inclined-plane, and the top surface of pole shoe is connect by inclined-plane with plane, the top surface of pole shoe and
The connection of inclined-plane rounding off.
Further, two planes are in the same plane.
Further, center line symmetrical setting of two planes along arc surface.
Further, the center of circle of arc surface is overlapped with the center of circle of motor gas-gap.
Further, 0.2≤k≤0.8.
Further, k=0.5.
According to another aspect of the present invention, a kind of stator is provided, including stator core and winding, stator core include
Multiple stacked stator punchings, stator punching are above-mentioned stator punching.
According to another aspect of the present invention, a kind of motor is provided, the rotor including stator and with stator cooperation is fixed
Son is above-mentioned stator.
It applies the technical scheme of the present invention, two planes is respectively set at the both ends of the arc surface of pole shoe, that is, along mistake
The tangential direction at the midpoint of motor gas-gap cuts flat with tooth at the both ends of pole shoe to form two planes, and the top surface of pole shoe is close to winding slot
The distance between one end of notch and the elongated surfaces of arc surface are m (i.e. notch height is m), the elongated surfaces of plane and arc surface it
Between maximum distance be n (i.e. cutting height is n), set ratio k=n/m, the value range of ratio k is 0≤k≤1.Work as notch
When height m and cutting height n meet aforementioned proportion relationship, the Distribution of Magnetic Field of motor gas-gap can be improved, height is greatly reduced
Frequency back-emf harmonic content improves back-emf harmonic sine degree, to reduce the complete machine resonance noise of motor.
Detailed description of the invention
Fig. 1 is the partial structural diagram of the stator punching for improving resonance noise of the embodiment of the present invention；
Fig. 2 is the dimension scale schematic diagram of the stator punching of Fig. 1；
Fig. 3 is the stator of the stator punching of application drawing 1 and the cooperation schematic diagram of rotor；
Fig. 4 is the average of torque of the motor of the stator punching of application drawing 1 with the change curve of ratio k；
Fig. 5 be the motor of the stator punching of application drawing 1 torque ripple and average of torque ratio with ratio k variation
Curve
Counter potential waveform figure when Fig. 6 is the work of existing motor；And
Fig. 7 is the counter potential waveform figure as the k=0.5 of the stator punching of Fig. 1.
Description of symbols:
10, yoke portion；20, pole shoe；21, arc surface；22, plane；23, inclined-plane；30, winding section；40, motor gas-gap；50, around
Wire casing；60, rotor.
Specific embodiment
Present invention is further described in detail in the following with reference to the drawings and specific embodiments, but not as to limit of the invention
It is fixed.
As shown in Figure 1 to Figure 3, the stator punching of the present embodiment includes yoke portion 10, pole shoe 20 and connection yoke portion 10 and pole
The winding section 30 of boots 20.Wherein, pole shoe 20 and winding section 30 together constitute the stator tooth protruded towards rotor 60, stator tooth
Motor gas-gap 40 is formed between pole shoe 20 and rotor 60.There are multiple said stator teeth, two adjacent stators on stator punching
Winding slot 50 is formed between tooth, and the notch of winding slot 50 is formed between two adjacent pole shoes 20.In the present embodiment, pole shoe 20
Bottom surface have towards motor gas-gap 40 arc surface 21 and be connected to arc surface 21 both ends two planes 22.Pole
The top surface of boots 20 is m, plane 22 and circular arc close to the distance between one end of 50 notch of winding slot and the elongated surfaces of arc surface 21
Maximum distance between the elongated surfaces in face 21 is n.Set ratio k=n/m, wherein 0≤k≤1.
Using the stator punching of the present embodiment, two planes 22 are respectively set at the both ends of the arc surface 21 of pole shoe 20,
Tangential direction exactly along the midpoint for crossing motor gas-gap 40 cuts flat with tooth at the both ends of pole shoe 20 to form two planes 22, pole shoe 20
Top surface close to the distance between one end of 50 notch of winding slot and the elongated surfaces of arc surface 21 be m (i.e. notch height is m), put down
Maximum distance between face 22 and the elongated surfaces of arc surface 21 is n (i.e. cutting height is n), sets ratio k=n/m, ratio k
Value range is 0≤k≤1.When notch height m and cutting height n meet aforementioned proportion relationship, motor gas-gap 40 can be improved
Distribution of Magnetic Field, be greatly reduced high frequency back-emf harmonic content, back-emf harmonic sine degree improved, to reduce motor
Complete machine resonance noise.
As shown in Figure 1 to Figure 3, in the stator punching of the present embodiment, the end of pole shoe 20 has inclined-plane 23, pole shoe 20
Top surface is connect by inclined-plane 23 with plane 22.The intersecting lens of the elongated surfaces of the elongated surfaces and arc surface 21 on inclined-plane 23 is (with pole in Fig. 2
For the right part of boots 20, two dotted lines respectively indicate " elongated surfaces on inclined-plane 23 " and " elongated surfaces of arc surface 21 ", and two
Dotted line intersection point indicates " intersecting lens ") it with the distance between plane 22 is n, that is to say, that in the direction perpendicular to plane 22, tiltedly
The distance of intersecting lens to the plane 22 of the elongated surfaces of the elongated surfaces and arc surface 21 in face 23 is plane 22 and arc surface 21 prolongs
Maximum distance n between long face (cutting height is n).In addition, in the present embodiment, the top surface and inclined-plane 23 of pole shoe 20 pass through one
The intersecting lens of the connection of cambered surface rounding off, the top surface of pole shoe 20 and the cambered surface to the distance between elongated surfaces of arc surface 21 be m
(i.e. notch height is m).
As shown in Figure 1 to Figure 3, in the stator punching of the present embodiment, the center of circle of arc surface 21 and the circle of motor gas-gap 40
The heart is overlapped, and two planes 22 are in the same plane, and two planes 22 are along the center line symmetrical setting of arc surface 21, in this way
The motor gas-gap 40 after improving can be made more uniform, to guarantee the noise reduction effect of complete machine.In addition, two planes 22 are symmetrically set
It sets and more conducively fabricates.
In the stator punching of the present embodiment, when ratio k chooses suitable numerical value, motor high frequency back-emf harmonic wave can be made
Content is preferably minimized, and improves the sine degree of counter potential waveform, and guarantees the virtual value of back-emf, and amplitude peak reduces motor complete machine
Noise level.It is proved by internal simulating, verifying and test experiments, as 0.2≤k≤0.8, the average of torque of motor, torque
The performance indicators such as fluctuation, main phase and secondary opposite potential virtual value are more stable, and the comprehensive performance of motor is more stable, and (specific data are seen below
Face table 1).
Table 1
Fig. 4 shows average of torque with the change curve of k, and Fig. 5 shows the ratio of torque ripple and average of torque
With the change curve of k.In conjunction with the data and Fig. 4, Fig. 5 in table 1 it is found that as 0.2≤k≤0.8, the comprehensive performance of motor compared with
Stablize, average of torque is maintained at 330Nmm between 334Nmm, and the ratio of torque ripple and average of torque is maintained at
Between 27.8% to 28.8%.Wherein, k=0.5 is the design size optimized.Fig. 6 shows existing stator punching work
When counter potential waveform, Fig. 7 shows the counter potential waveform of the stator punching as k=0.5, and being compared by Fig. 6 and Fig. 7 obviously to see
Out, the sine degree of the counter potential waveform in Fig. 7 is more preferable.
It should be noted that the stator punching of the present embodiment be chain type stator punching, certainly, it is not shown in the figure other
In embodiment, stator punching can be the straight-tooth stator punching of other forms, such as full circle stator punching, semicircle stator punching
Deng.
Present invention also provides a kind of stator (not shown), the embodiment according to the stator of the application includes stator iron
Core and winding, stator core include multiple stacked stator punchings, and stator punching is above-mentioned stator punching.
In addition, present invention also provides a kind of motor (not shown), the embodiment according to the motor of the application includes
Stator and the rotor 60 cooperated with stator, stator are above-mentioned stator.The motor of the present embodiment should be followed when manufacturing and designing
Following steps:
Step 1: calculating according to motor size and performance development and choosing suitable concentrate around scheme；
Step 2: carrying out parametrization calculating to pole shoe optimized dimensions；
Step 3: carrying out Parametric Analysis to output data；
Step 4: choosing suitable optimization ratio (ratio k) according to data；
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, work, device, component and/or their combination.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so that presently filed embodiment described herein can be in addition to illustrating herein
Or the sequence other than those of description is implemented.
It certainly, is the preferred embodiment of the present invention above.It should be pointed out that for those skilled in the art
For, without departing from the basic principles of the invention, several improvements and modifications can also be made, these improvements and modifications
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of stator punching, including yoke portion (10), pole shoe (20) and the yoke portion (10) and the pole shoe (20) are connected
The bottom surface of winding section (30), the pole shoe (20) with the arc surface (21) towards motor gas-gap (40) and is connected to institute
State two planes (22) at the both ends of arc surface (21), which is characterized in that the top surface of the pole shoe (20) is close to winding slot (50)
The distance between elongated surfaces of one end of notch and the arc surface (21) are m, the plane (22) and the arc surface (21)
Elongated surfaces between maximum distance be n, set ratio k=n/m, wherein 0≤k≤1.
2. stator punching according to claim 1, which is characterized in that the end of the pole shoe (20) has inclined-plane (23),
The top surface of the pole shoe (20) is connect by the inclined-plane (23) with the plane (22), the elongated surfaces of the inclined-plane (23) and institute
Stating the distance between intersecting lens and the plane (22) of the elongated surfaces of arc surface (21) is n.
3. stator punching according to claim 1, which is characterized in that the end of the pole shoe (20) has inclined-plane (23),
The top surface of the pole shoe (20) is connect by the inclined-plane (23) with the plane (22), the top surface of the pole shoe (20) with it is described
The connection of inclined-plane (23) rounding off.
4. stator punching according to claim 1, which is characterized in that two planes (22) are in the same plane.
5. stator punching according to claim 1, which is characterized in that two planes (22) are along the arc surface (21)
Center line symmetrical setting.
6. stator punching according to claim 1, which is characterized in that the center of circle of the arc surface (21) and the motor gas
The center of circle of gap (40) is overlapped.
7. stator punching according to any one of claim 1 to 6, which is characterized in that 0.2≤k≤0.8.
8. stator punching according to claim 7, which is characterized in that k=0.5.
9. a kind of stator, including stator core and winding, the stator core includes multiple stacked stator punchings, and feature exists
In the stator punching is stator punching described in any item of the claim 1 to 8.
10. a kind of motor, the rotor (60) including stator and with stator cooperation, which is characterized in that the stator is power
Benefit require 9 described in stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910285553.9A CN109861479A (en) | 2019-04-10 | 2019-04-10 | For improving the stator punching, stator and motor of resonance noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910285553.9A CN109861479A (en) | 2019-04-10 | 2019-04-10 | For improving the stator punching, stator and motor of resonance noise |
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| Publication Number | Publication Date |
|---|---|
| CN109861479A true CN109861479A (en) | 2019-06-07 |
Family
ID=66903644
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910285553.9A Pending CN109861479A (en) | 2019-04-10 | 2019-04-10 | For improving the stator punching, stator and motor of resonance noise |
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| Country | Link |
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| CN (1) | CN109861479A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113162269A (en) * | 2021-04-14 | 2021-07-23 | 广东威灵电机制造有限公司 | Motor, compressor and fan |
| CN114123704A (en) * | 2021-11-04 | 2022-03-01 | 广州超静智能科技有限公司 | Swing telescopic combined motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202374059U (en) * | 2011-12-15 | 2012-08-08 | 山东百特电机电器有限公司 | Motor stator punching sheet |
| CN203233246U (en) * | 2013-04-18 | 2013-10-09 | 广东威灵电机制造有限公司 | Stator iron core lamination unit, stator and induction motor |
| CN204231040U (en) * | 2014-11-04 | 2015-03-25 | 杭州钱江压缩机有限公司 | A kind of variable frequency motor stator punching |
| US20170077769A1 (en) * | 2015-09-10 | 2017-03-16 | Johnson Electric S.A. | Single Phase Permanent Magnet Motor |
| CN209472519U (en) * | 2019-04-10 | 2019-10-08 | 珠海凯邦电机制造有限公司 | For improving the stator punching, stator and motor of resonance noise |
-
2019
- 2019-04-10 CN CN201910285553.9A patent/CN109861479A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202374059U (en) * | 2011-12-15 | 2012-08-08 | 山东百特电机电器有限公司 | Motor stator punching sheet |
| CN203233246U (en) * | 2013-04-18 | 2013-10-09 | 广东威灵电机制造有限公司 | Stator iron core lamination unit, stator and induction motor |
| CN204231040U (en) * | 2014-11-04 | 2015-03-25 | 杭州钱江压缩机有限公司 | A kind of variable frequency motor stator punching |
| US20170077769A1 (en) * | 2015-09-10 | 2017-03-16 | Johnson Electric S.A. | Single Phase Permanent Magnet Motor |
| CN209472519U (en) * | 2019-04-10 | 2019-10-08 | 珠海凯邦电机制造有限公司 | For improving the stator punching, stator and motor of resonance noise |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113162269A (en) * | 2021-04-14 | 2021-07-23 | 广东威灵电机制造有限公司 | Motor, compressor and fan |
| WO2022217824A1 (en) * | 2021-04-14 | 2022-10-20 | 广东威灵电机制造有限公司 | Motor, compressor, and fan |
| CN114123704A (en) * | 2021-11-04 | 2022-03-01 | 广州超静智能科技有限公司 | Swing telescopic combined motor |
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