CN208174378U - A kind of rotor punching of low-noise low vibration magneto - Google Patents
A kind of rotor punching of low-noise low vibration magneto Download PDFInfo
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- CN208174378U CN208174378U CN201820683780.8U CN201820683780U CN208174378U CN 208174378 U CN208174378 U CN 208174378U CN 201820683780 U CN201820683780 U CN 201820683780U CN 208174378 U CN208174378 U CN 208174378U
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- flux density
- teeth portion
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Abstract
The utility model discloses a kind of rotor punchings of low-noise low vibration magneto, including stator punching, thin-walled rotor punching, stator punching includes stator yoke of the stator yoke flux density no more than 1T, trapezoidal teeth portion of the teeth portion flux density no more than 1.5T, the ratio of teeth portion flux density and stator yoke flux density is between 1.5-1.6, trapezoidal teeth portion by stator yoke the radially inwardly extending formation of inside circumference, trapezoidal teeth portion includes short side and long side, short side is located in stator yoke, and long side is close to slot shoulder；The ratio of long side and short side is a, wherein a >=1.06；Thin-walled rotor punching includes the rotor yoke that rotor yoke flux density is not more than 1.2T, and the ratio of teeth portion flux density and rotor yoke flux density is between 1.25-1.35.The utility model rotor punching, can reduce magnetic resistance and fastening be powered conductor by cross force be displaced, to reduce vibration and noise；The noise that power current frequency and electromagnetic frequency resonance occur can be eliminated, vibration is reduced；Keep effective air gap magnetic field smooth, reduces cogging torque.
Description
Technical field
The utility model relates to a kind of rotor punchings of low noise low vibration novel permanent-magnet motor.
Background technique
Existing magneto, stator yoke flux density is generally between 1.2-1.5T, and teeth portion flux density is generally in 1.5-1.9T
Between.Teeth portion along its length of same size or different, for not wide teeth portion, long side is located in stator yoke,
Its short side is then slot shoulder side.Rotor yoke flux density is generally between 1.3-1.6T.The magnetic flux that stator electrical conductor generates, due to punching
Sheet material thicknesses processes error, punching production loss and burr difference laminate fabrication error and iron core laminated coefficient no more than 1,
And magnetic circuit flow direction magnetic resistance, cause the fluctuation of air-gap field, keep the cogging torque of magneto bigger than normal, in conjunction with electrical conductor by
To the effect of transversal electromagnetic force, electrical conductor can be relatively moved, and form electromagnetic noise, cause electromagnetic noise higher and vibration is inclined
Greatly.
Summary of the invention
The purpose of the utility model is to provide a kind of rotor punching of low-noise low vibration magneto, Neng Gouyou
The conductor for reducing magnetic resistance and fastening energization of effect is by cross force displacement, to reduce vibration and electromagnetic noise；Work can be eliminated
The noise that frequency power frequency and electromagnetic frequency resonance occur, reduces vibration；Keep motor effective air gap magnetic field smooth and obtains sufficiently
It utilizes, reduces cogging torque and vibration and noise.
In order to achieve the above objectives, the technical solution adopted in the utility model is：
A kind of rotor punching of low-noise low vibration magneto, including stator punching, thin-walled rotor punching, institute
State the trapezoidal teeth portion that stator punching includes stator yoke of the stator yoke flux density no more than 1T, teeth portion flux density is not more than 1.5T, institute
The ratio of teeth portion flux density and the stator yoke flux density is stated between 1.5-1.6, the trapezoidal teeth portion is by the stator yoke
Circumference radially inwardly extending formation in inside is extended radially outward by the outside circumference of the stator yoke and is formed, the ladder
Shape teeth portion includes short side and long side, and the short side is located in the stator yoke, and the long side is close to slot shoulder；The long side and institute
The ratio for stating short side is a, wherein a >=1.06；The thin-walled rotor punching includes the rotor that rotor yoke flux density is not more than 1.2T
The ratio of yoke portion, the teeth portion flux density and the rotor yoke flux density is between 1.25-1.35.
Preferably, the ratio of the stator punching outer diameter and inner diameter and the teeth portion flux density and the stator yoke flux density
Ratio is identical.
Preferably, the ratio of the thin-walled rotor punching outer diameter and inner diameter and the teeth portion flux density and the rotor yoke magnetic
Close ratio is identical.
Preferably, the rotor punching is internal rotor punching, and the trapezoidal teeth portion is all by the inside of the stator yoke
The radially inwardly extending formation in portion.
Preferably, the rotor punching is outer rotor punching, and the trapezoidal teeth portion is all by the outside of the stator yoke
Portion extends radially outward to be formed.
Preferably, the rotor punching is strong magnetic permanent magnet punching or weak magnetic permanent magnet punching.
Preferably, the rotor punching is high torque motor punching.
Preferably, the rotor punching is high-power permanent magnet motor punching in short-term.
Preferably, the stator punching is chute stator punching.
Due to the application of the above technical scheme, the utility model has following advantages compared with prior art：This is practical new
A kind of rotor punching of low-noise low vibration magneto of type is not more than the stator of 1T by setting stator yoke flux density
Yoke portion and teeth portion flux density are not more than the teeth portion of 1.5T, are saturated stator magnetic circuit never, guarantee that air-gap field is stable and smooth；Pass through
The rotor yoke that rotor yoke flux density is not more than 1.2T is set, is saturated rotor magnetic circuit never, guarantees that air-gap field is stable and puts down
Sliding, effective air gap magnetic field, which can efficiently control, stablizes smoothly；By the way that trapezoidal teeth portion is arranged, efficiently reduces magnetic resistance and fastening is logical
The conductor of electricity is displaced by cross force, to reduce vibration and electromagnetic noise；It is never saturated in conjunction with rotor magnetic field, effective magnetic
Close ratio stablizes air gap flux density smooth, to reduce cogging torque and magnetic fluctuation, reduces vibration and noise, and improve
Torque constant meets bearing capacity when load sudden change.
Detailed description of the invention
Attached drawing 1 is rotor punching in the utility model embodiment 1（Wherein thin-walled rotor punching is the punching of table note formula rotor
Piece）Structural schematic diagram；
Attached drawing 2 is rotor punching in the utility model embodiment 2（Wherein thin-walled rotor punching is embedded rotor punching
Piece）Structural schematic diagram；
Attached drawing 3 is the structural schematic diagram of rotor punching in the utility model embodiment 3.
Wherein：1, stator yoke；2, trapezoidal teeth portion；3, rotor yoke.
Specific embodiment
The technical solution of the utility model is further elaborated with reference to the accompanying drawing.
Join above-mentioned a kind of rotor punching of low-noise low vibration magneto as shown in figure 1 to 3, stator punching packet
The stator yoke 1 that stator yoke flux density is not more than 1T is included, which broadens at least 1.35 than existing stator average yoke portion
Times, it is contemplated that punching burr maximum 0.054mm and stacking factor 0.9, loss maximum 0.12 also broaden than existing stator yoke
1.23 times, it can guarantee that 1 magnetic circuit of stator yoke is never saturated.Stator punching further includes the stepped tooth that teeth portion flux density is not more than 1.5T
Portion 2, the trapezoidal teeth portion 2 are averaged teeth portion than existing stator（Teeth portion flux density 1.7T）It broadens at least 1.13 times, it is contemplated that punching hair
Maximum 0.054mm and stacking factor 0.9 are pierced, loss maximum 0.12 also broadens 1.01 times than existing stator teeth, can guarantee
Stator teeth magnetic circuit is never saturated.
Wherein, according to actual needs, rotor punching can be strong magnetic permanent magnet punching or the punching of weak magnetic permanent magnet or big
Torque motor punching or in short-term high-power permanent magnet motor punching, stator punching can be chute stator punching.
Trapezoidal teeth portion 2 includes short side and long side, and short side is located in stator yoke 1, and long side is close to slot shoulder.Long side and short side
Ratio is a, wherein a >=1.06, trapezoidal 2 structure of teeth portion to electrical conductor by having fastening effect under the action of cross force, by
It is wide in the teeth portion that long side is close slot shoulder, the teeth portion flux density close to air gap is reduced, thus stablize air gap flux density without fluctuation,
Reduce cogging torque and vibration and noise.The effective power density of motor is improved simultaneously.
Referring to shown in Fig. 1-2, stator punching is located on the outside of thin-walled rotor punching, and trapezoidal teeth portion 2 is by stator yoke 1
The radially inwardly extending formation of side circumference；Shown in Figure 3, thin-walled rotor punching is located on the outside of stator punching, trapezoidal teeth portion 2
It is extended radially outward and is formed by the outside circumference of stator yoke 1.Wherein, short side h, long side L；The outer diameter of stator punching is
D1, the internal diameter of stator punching are D2；The outer diameter of thin-walled rotor punching is d1, and the internal diameter of thin-walled rotor punching is d2.
Thin-walled rotor punching includes the rotor yoke 3 that rotor yoke flux density is not more than 1.2T, and the rotor yoke 3 is than existing
Rotor average yoke portion（Yoke portion flux density 1.45T）It broadens at least 1.208 times, it is contemplated that punching burr maximum 0.054mm and laminate and be
Number 0.9, loss maximum 0.12, also broadens 1.08 times than existing rotor yoke, can guarantee that 3 magnetic circuit of rotor yoke is never satisfied
With.It is bigger than normal in conjunction with thin-walled rotor inner hole, reduce rotor moment of inertia and vibration and noise.Magnetization of the permanent magnet to axis is reduced,
Improve electrical machinery life；The p-m rotor of rotation has cushioning effect to motor shaft, to reduce motor oscillating.
1 flux density of stator yoke of stator punching is no more than 1T and teeth portion flux density is not more than 1.5T, keeps motor gas-gap magnetic field steady
Fixed and smooth, never magnetic saturation, operational shock reduces small and lower noise.The teeth portion flux density and stator yoke flux density of stator punching
Ratio between 1.5-1.6, improve the effective power density of motor, electric efficiency improve.
The rotor yoke flux density of thin-walled rotor punching is not more than 1.2T, improves the stability of motor effective magnetic field, reduces
Cogging torque and vibration and noise.The teeth portion flux density of stator punching and the ratio of rotor yoke flux density between 1.25-1.35,
Make motor effective air gap magnetic field smoothly and make full use of, reduces cogging torque and vibration and noise.
The ratio of stator punching outer diameter and inner diameter is identical as the ratio of teeth portion flux density and stator yoke flux density, in 1.5-1.6
Between, the noise that power current frequency and electromagnetic frequency resonance occur can be eliminated.
The ratio of thin-walled rotor punching outer diameter and inner diameter is identical as the ratio of teeth portion flux density and rotor yoke flux density,
Between 1.25-1.35, the noise of the rotor electromagnetic frequency resonance appearance of work frequency and rotation can be eliminated.
The rotor punching can be applied to the magneto of low noise and low vibration, be suitble to inner rotor motor and outer rotor
Motor improves the environmental-friendly and comfortable of electrical machinery life and application.
The above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and implement accordingly, do not limit the protection scope of the present invention.
All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover the protection scope of the utility model it
It is interior.
Claims (9)
1. a kind of rotor punching of low-noise low vibration magneto, including stator punching, thin-walled rotor punching, special
Sign is：The stator punching includes stator yoke of the stator yoke flux density no more than 1T, ladder of the teeth portion flux density no more than 1.5T
The ratio of shape teeth portion, the teeth portion flux density and the stator yoke flux density is between 1.5-1.6, and the trapezoidal teeth portion is by described fixed
The radially inwardly extending formation of the inside circumference in sub- yoke portion extends radially outward shape by the outside circumference of the stator yoke
At the trapezoidal teeth portion includes short side and long side, and the short side is located in the stator yoke, and the long side is close to slot shoulder；Institute
The ratio for stating long side and the short side is a, wherein a >=1.06；The thin-walled rotor punching includes that rotor yoke flux density is not more than
The ratio of the rotor yoke of 1.2T, the teeth portion flux density and the rotor yoke flux density is between 1.25-1.35.
2. a kind of rotor punching of low-noise low vibration magneto according to claim 1, it is characterised in that：
The ratio of the stator punching outer diameter and inner diameter is identical as the ratio of the teeth portion flux density and the stator yoke flux density.
3. a kind of rotor punching of low-noise low vibration magneto according to claim 1, it is characterised in that：
The ratio of the thin-walled rotor punching outer diameter and inner diameter is identical as the ratio of the teeth portion flux density and the rotor yoke flux density.
4. a kind of rotor punching of low-noise low vibration magneto according to claim 1, it is characterised in that：
The rotor punching is internal rotor punching, and the trapezoidal teeth portion is radially inwardly extending by the inside circumference of the stator yoke
It is formed.
5. a kind of rotor punching of low-noise low vibration magneto according to claim 1, it is characterised in that：
The rotor punching is outer rotor punching, and the trapezoidal teeth portion is extended radially outward by the outside circumference of the stator yoke
It is formed.
6. a kind of rotor punching of low-noise low vibration magneto according to claim 1, it is characterised in that：
The rotor punching is strong magnetic permanent magnet punching or weak magnetic permanent magnet punching.
7. a kind of rotor punching of low-noise low vibration magneto according to claim 1, it is characterised in that：
The rotor punching is high torque motor punching.
8. a kind of rotor punching of low-noise low vibration magneto according to claim 1, it is characterised in that：
The rotor punching is high-power permanent magnet motor punching in short-term.
9. a kind of rotor punching of low-noise low vibration magneto according to claim 1, it is characterised in that：
The stator punching is chute stator punching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820683780.8U CN208174378U (en) | 2018-05-09 | 2018-05-09 | A kind of rotor punching of low-noise low vibration magneto |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820683780.8U CN208174378U (en) | 2018-05-09 | 2018-05-09 | A kind of rotor punching of low-noise low vibration magneto |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208174378U true CN208174378U (en) | 2018-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820683780.8U Active CN208174378U (en) | 2018-05-09 | 2018-05-09 | A kind of rotor punching of low-noise low vibration magneto |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108347106A (en) * | 2018-05-09 | 2018-07-31 | 江苏富丽华通用设备股份有限公司 | A kind of rotor punching of low-noise low vibration magneto |
| CN111293835A (en) * | 2020-04-01 | 2020-06-16 | 江苏晟楠电子科技股份有限公司 | Preparation method of trapezoidal alignment tooth stator core structure of permanent magnet torque motor |
-
2018
- 2018-05-09 CN CN201820683780.8U patent/CN208174378U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108347106A (en) * | 2018-05-09 | 2018-07-31 | 江苏富丽华通用设备股份有限公司 | A kind of rotor punching of low-noise low vibration magneto |
| CN111293835A (en) * | 2020-04-01 | 2020-06-16 | 江苏晟楠电子科技股份有限公司 | Preparation method of trapezoidal alignment tooth stator core structure of permanent magnet torque motor |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Shen Kunhua Inventor after: Zhang Wei Inventor before: Shen Kun Hua |