CN207947710U - A kind of spliced magneto of rotor magnetic pole - Google Patents
A kind of spliced magneto of rotor magnetic pole Download PDFInfo
- Publication number
- CN207947710U CN207947710U CN201820035741.7U CN201820035741U CN207947710U CN 207947710 U CN207947710 U CN 207947710U CN 201820035741 U CN201820035741 U CN 201820035741U CN 207947710 U CN207947710 U CN 207947710U
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- China
- Prior art keywords
- rotor
- permanent magnet
- magnetic pole
- magneto
- spliced
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- Expired - Fee Related
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The spliced magneto of rotor magnetic pole, belongs to magneto field.Solves the problems such as existing magneto harmonic content is high, of high cost.It includes stator, rotor, casing, left end cap, right end cap, shaft and bearing.The utility model rotor permanent magnet is spliced using c-type arrangement and rotor magnetic pole by using the permanent magnet that two kinds of material differences, sizes differ, improve the sine degree of air gap magnetic density waveform, it reduces flux density harmonic content in air gap while reducing motor cost, improve the electromagnetic performance of motor.It is mainly used for reduce motor gas-gap in harmonic content, reduce motor production cost.
Description
Technical field
The utility model is related to magneto field, more particularly to a kind of non-salient pole permanent magnet motor.
Background technology
In recent years, being constantly progressive with scientific and technological level, China's industrial level have also obtained great development, people
To the motor performance as industrial power device, higher requirements are also raised.Currently, using most in industrial applications
Be threephase asynchronous, such design of electrical motor method is ripe, already forms a series of products on a large scale on the market,
But under the overall situation that the requirement to motor performance is continuously improved, although asynchronous machine can also reach requirement, it designs difficult
Degree is high, stock utilization is low, higher in the cost for producing upper enterprise.
One good method of this problem of solution asynchronous machine is exactly Development Permanent Magnet motor, and magneto uses high property
Can magnetic material, with smaller motor volume, higher power factor and efficiency can be obtained under power.China possesses abundant dilute
Soil resource has advantageous advantage on Development Permanent Magnet motor.
Due to the presence of rare-earth permanent magnet in magneto, in performance, permanent magnet can generate a large amount of humorous in air gap
Wave can cause air-gap field not sinusoidal, increase vibration and the noise of motor, this can bring extremely serious influence to motor；
In cost, due to the use of rare-earth permanent magnet, the production cost of Electrical Enterprises can be greatly improved, thus how reduced harmonic, drop
Low cost becomes the problem of puzzlement design of electrical motor personnel.
Invention content
In order to solve the problems such as existing magneto harmonic wave is more, of high cost, the utility model provides a kind of rotor magnetic pole
Spliced magneto.
The spliced magneto of rotor magnetic pole described in the utility model, it includes stator, rotor, shaft and casing, is also wrapped
Include left end cap and right end cap.
The motor stator and rotor are respectively positioned in casing, and stator is fixed on casing inner wall.
Rotor is fixedly connected by being interference fitted with shaft.
There are air gaps between motor stator and rotor.
The motor stator, rotor, left end cap, right end cap, casing are coaxial.
Rotor is hidden pole type structure, and permanent magnet, which is pasted on using adhesive on rotor, becomes magnetic pole.
Rotor magnetic pole is spliced by three pieces of not exactly the same permanent magnets of size and is in low-high-low form in the circumferential
Arrangement.
The volume that three pieces of permanent magnetism body positions on rotor magnetic pole are in intermediate is larger, and in addition position is in the permanent magnet of both sides
Small volume but size is identical.
Rotor magnetic pole uses two kinds of materials, wherein the larger permanent magnet material of intermediate volume is SmCo, both sides size phase
Same permanent-magnet material is neodymium iron boron.
The advantageous effect that the utility model is brought is that the spliced magneto of the rotor magnetic pole that the utility model is proposed makes
With c-type rotor structure, so that the motor permanent magnet dosage is reduced half, be greatly lowered in motor manufacturing cost, motor
Output torque performance is substantially unaffected.
The permanent magnet that rotor magnetic pole uses is that low-high-low form arranges in the circumferential, is neodymium iron boron material positioned at both sides
Material, is samarium-cobalt material positioned at centre.Splice by such form and arrange, NdFeB material and samarium-cobalt material is reasonably utilized
Magnetic property characteristic can preferably control flux density harmonic content in air gap, reduced harmonic, and it is sinusoidal to improve air gap magnetic density waveform
Degree, reduces the vibration noise of motor.
The utility model solves the problems, such as that the existing harmonic content of magneto is big, of high cost, motor performance is poor and technique
Property is good, easy to process.
The utility model is improving motor performance, reduces motor production cost.
Description of the drawings
Fig. 1 is the main sectional view of the spliced magneto of rotor magnetic pole described in the utility model.
Fig. 2 is the structural schematic diagram of motor stator.
Fig. 3 is motor rotor construction schematic diagram.
Fig. 4 is Nd-Fe-B permanent magnet.
Fig. 5 is samarium cobalt permanent magnet body.
Fig. 6 is the magnetic pole formed after Nd-Fe-B permanent magnet splices with samarium cobalt permanent magnet body.
Specific implementation mode
Specific implementation mode one：Illustrate present embodiment referring to Fig. 1 to Fig. 6, the rotor magnetic pole described in present embodiment is spelled
Formula magneto is connect, it includes stator（1）, rotor（2）, shaft（3）, casing（4）, left end cap (5), right end cap (6).
Stator（1）And rotor（2）It is respectively positioned on casing（4）It is interior, stator（1）It is fixed on casing（4）On inner wall, rotor（2）
Pass through interference fit and shaft（3）Connection；
Stator（1）, rotor（2）, casing（4）, left end cap (5) and right end cap (6) it is coaxial.
Stator（1）And rotor（2）Between there are air gaps.
The rotor（2）Each magnetic pole is identical by two sizes but the Nd-Fe-B permanent magnet of small volume（2-1）With 1
The larger samarium cobalt permanent magnet body of volume（2-2）It is spliced at low-high-low form on rotor (2) is circumferential；
Rotor（2）It is for hidden pole type structure, permanent magnet (2-1) and (2-2) are attached to using adhesive on rotor.
By using the splicing of Nd-Fe-B permanent magnet (2-1) and samarium cobalt permanent magnet body (2-2), the flux density in air gap can be reduced
Harmonic content improves air gap magnetic density waveform sine and reduces motor production cost.
Specific implementation mode two：Illustrate present embodiment, present embodiment and specific implementation mode one referring to Fig. 1 to Fig. 6
Difference lies in the samarium cobalt permanent magnet body (2-2) can be changed to alnico forever to the spliced magneto of the rotor magnetic pole
Magnet.
Specific implementation mode three：Illustrate present embodiment, present embodiment and specific implementation mode one referring to Fig. 1 to Fig. 6
Or difference lies in the samarium cobalt permanent magnet body (2-2) can be changed to iron oxygen to the spliced magneto of rotor magnetic pole described in two
Body permanent magnet.
Claims (3)
1. a kind of spliced magneto of rotor magnetic pole, it includes stator（1）, rotor（2）, shaft（3）, casing（4）, left end cap
(5), right end cap (6)；
The stator（1）And rotor（2）It is respectively positioned on casing（4）It is interior, stator（1）It is each attached to casing（4）On inner wall, rotor（2）
Pass through interference fit and shaft（3）Connection；
Stator（1）And rotor（2）Between there are air gaps；
The rotor magnetic pole is spliced by three pieces of not exactly the same permanent magnets of volume and is in low-high-low form in the circumferential
Arrangement；
The volume that three pieces of permanent magnetism body positions on the rotor magnetic pole are in intermediate is larger, and in addition position is in the permanent magnet of both sides
Small volume but size is identical；
The rotor magnetic pole uses two kinds of materials, wherein and intermediate volume is larger to be used as samarium cobalt permanent magnet body (2-2),
Both sides size is identical to use Nd-Fe-B permanent magnet (2-1).
2. the spliced magneto of rotor magnetic pole according to claim 1, which is characterized in that the samarium cobalt permanent magnet body（2-
2）Al-Ni-Co permanent magnet can be used to replace.
3. the spliced magneto of rotor magnetic pole according to claim 1 or 2, which is characterized in that the samarium cobalt permanent magnet body
（2-2）Ferrite permanent magnet can be used to replace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820035741.7U CN207947710U (en) | 2018-01-10 | 2018-01-10 | A kind of spliced magneto of rotor magnetic pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820035741.7U CN207947710U (en) | 2018-01-10 | 2018-01-10 | A kind of spliced magneto of rotor magnetic pole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207947710U true CN207947710U (en) | 2018-10-09 |
Family
ID=63701738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820035741.7U Expired - Fee Related CN207947710U (en) | 2018-01-10 | 2018-01-10 | A kind of spliced magneto of rotor magnetic pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207947710U (en) |
-
2018
- 2018-01-10 CN CN201820035741.7U patent/CN207947710U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181009 Termination date: 20190110 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |