CN205829410U - P-m rotor low harmony wave magnetizer - Google Patents
P-m rotor low harmony wave magnetizer Download PDFInfo
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- CN205829410U CN205829410U CN201620360485.XU CN201620360485U CN205829410U CN 205829410 U CN205829410 U CN 205829410U CN 201620360485 U CN201620360485 U CN 201620360485U CN 205829410 U CN205829410 U CN 205829410U
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Abstract
P-m rotor low harmony wave magnetizer, it is characterized in magnetizing pole by arranging multiple modulation system, whole magnetic pole surfaces of filling is made to be divided into multiple dentation and magnetize pole, the shared central angle of each pole of magnetizing and magnetize and be distributed into low harmony wave proportionate relationship between magnetic potential, magnetizes pole realizing the p-m rotor of a kind of modulation；Utilize modulation system to magnetize pole, magnetizing coil and the electric current that magnetizes prepares low harmony wave p-m rotor magnetizer, the pole that makes to magnetize applies modulation system the action of a magnetic field to permanent magnetic powder in p-m rotor forming process so that magnetic powder material internal magnetic domain generation control arrangement in p-m rotor；The air-gap field waveform produced when loading motor after p-m rotor molding is more nearly sine wave, this utility model overcomes the deficiency of air-gap field non-sinusoidal waveform distribution in existing p-m rotor magnetization method, the effect of harmonic field can be reduced, benefit the performance improving magneto, reduce vibration and the noise of magneto, improve magneto operation stability and reliability.
Description
Technical field
This utility model relates to a kind of permanent magnet magnetizer, realizes magneto air-gap field particularly to one low humorous
The p-m rotor low harmony wave magnetizer of wavelength-division cloth, belongs to permanent magnet machine rotor technical field.
Background technology
At present, magneto, with its lightness, high performance, the various features such as energy-efficient, is applied increasingly extensive；With
Time, the most increasingly pay close attention to the problem that magneto exists in terms of vibration and noise, and the air-gap field that p-m rotor is set up is special
Levy is to affect magneto vibration and the key factor of noise.
Traditional magnetizer is all the mode using single magnetized head to configure single magnetizing coil so that magneto turns
The air-gap field that son is set up in motor mostly is non-sinusoidal waveform, and present in it, harmonic content is higher, so that motor
Copper loss, iron loss, miscellaneous consumption increase, and efficiency declines, temperature rise raises, and causes a lot of advantage of magneto to be difficult to be presented as the market advantage.
Additionally, non-low harmony wave magnetic field also can produce pulsating electromagnetic torque and cause speed oscillation, affect operation stability, reliability and make
With the life-span, directly affect using and promoting of magneto.Therefore, p-m rotor how is made to produce the humorous of air-gap field waveform
Ripple is lower, has become as restriction and promotes the key core technical bottleneck of magneto performance.
Publication No. is application for a patent for invention " a kind of p-m rotor sine magnetization method and the device " (Shen of CN104319060A
Please number: 2014104726101) disclose a kind of p-m rotor sine magnetization method and device, two magnetize pole and p-m rotors
Contact surface be divided into 2m about the symmetrical arc of the pole geometric center lines i.e. NS pole boundary line that magnetizes, each pole of magnetizing
On arc width and interval becomes respectively sine proportionate relationship, this magnetize pole in p-m rotor forming process to permanent-magnet magnetic
Powder applies the action of a magnetic field so that permanent magnetic powder material internal magnetic domain generation control arranges, so that after p-m rotor molding
The air-gap field waveform produced when loading motor is more nearly sine wave, i.e. reduces the harmonic content of air-gap field, is a kind of
Modified model magnetization method and device.
But, in this device each modulation stagewise magnetize pole by the ampere-turn that magnetizes be identical, non-by magnetic field
The impact of linear factor, only by regulation and control, each magnetizes polar arc line width and is partitioned into sinusoidal proportionate relationship, may there is shadow
Ring the deficiency of patented technology effect.
Summary of the invention
The purpose of this utility model is that the above-mentioned technical problem existed for prior art, it is provided that a kind of p-m rotor
Low harmony wave magnetizer, to overcome the Gas-gap Magnetic Field Resonance Wave content that in existing p-m rotor magnetization method, p-m rotor produces high
Not enough so that the harmonic content of the air gap magnetic produced when loading motor after p-m rotor molding, magnetize with traditional and modified model
Compare lower with device.
The technical scheme that this utility model is given is:
A kind of p-m rotor low harmony wave magnetizer, is mainly made up of iron core and magnetizing coil, each polarity on iron core
Magnetized head is magnetized by m pole, each magnetizing coil extremely gone up and be coated on the yoke of periphery, pole of magnetizing and constitute of magnetizing；Described
It is different that the number of turn of each magnetizing coil and lead-out wire connect the electric current of the pulse power, thus produces the different magnetic that magnetizes
Gesture, magnetizes for the p-m rotor being placed under the cartridge that magnetizes；Being characterized in, under a magnetic polarity, m is each in magnetizing extremely magnetizes
The center of circle angle that pole is occupied is β=π/m electrical radian, and the magnetize position angle at place, pole of kth is k π/m electrical radian, magnetizing coil circle
Number is Wk, the electric current that magnetizes that connects be Ik, the magnetic potential that magnetizes of generation is Fk=WkIk；Kth and kth+1 magnetize pole produce fill
Meeting low harmony wave modulation relation between magnetic magnetic potential is Fk+1/Fk=Wk+1Ik+1/WkIk=sin [(k+1) π/m]/sin (k π/m), its
In, k=1,2,3 ..., m-1；The W of another magnetic polarity1=W2=...=WmIndividual magnetize pole and above-mentioned magnetic polarity pole of magnetizing is closed
It is symmetrical arranged in magnetic polarity geometric center lines.
Further, each magnetizing coil number of turn can be configured to relation of equality, i.e. W1=W2=...=Wm, so, magnetize
It is I that the electric current that magnetizes of coil is configured to low harmony wave relationk+1/Ik=sin [(k+1) π/m]/sin (k π/m), k=1,2,
3,...,m-1。
Further, the electric current that magnetizes of each magnetizing coil can be configured to relation of equality, i.e. I1=I2=...=Im, so
It is W that the magnetizing coil number of turn is configured to low harmony wave relationk+1/Wk=sin [(k+1) π/m]/sin (k π/m), k=1,2,3 ..., m-
1。
Further, arrange to benefit the control of permanent magnetic powder material internal magnetic domain, the axial length of iron core and permanent magnetism
The axial length of rotor is equal, each magnetize extremely put into magnetizing coil arrange breach should be the least.Useful, use magnetic
This breach filled up by property material.
Further, the iron core of magnetizer is made up of the soft magnetic materials that permeability is high, to optimize the effect that magnetizes.Magnetizing coil
Benefit uses enamel insulated wire coiling, is nested in dentation and magnetizes and carry out dipping lacquer the most afterwards and insulation processing is done in drying.
The p-m rotor low harmony wave magnetization method that this utility model uses is, the magnetized head of each magnetic polarity is equal by m
The dentation of central angle pole of magnetizing is constituted, each pole of magnetizing account for position angle coordinate the magnetize magnetizing coil extremely gone up and the electric current that magnetizes
The magnetic potential that magnetizes produced becomes low harmony wave modulation ratio relation, and permanent magnetic powder is applied in p-m rotor forming process by this pole of magnetizing
The action of a magnetic field so that permanent magnetic powder material internal magnetic domain generation control arranges, so that loading motor after p-m rotor molding
Time produce air-gap field harmonic content lower.
Compared with prior art, the beneficial effects of the utility model are: this magnetizer is in p-m rotor forming process
Magnetize the action of a magnetic field to permanent magnetic powder applying modulation system so that permanent magnetic powder material internal magnetic domain generation control orientation and intensity
Arrangement, compared with traditional and modified model magnetizer, the harmonic wave of generation air-gap field when loading motor after p-m rotor molding
Content is lower, overcomes the weak point that in existing p-m rotor magnetization method, Gas-gap Magnetic Field Resonance Wave content is high, is of value to improvement forever
The performance of magneto, improves operation stability and reliability.
Accompanying drawing explanation
Fig. 1 is the sectional view of this utility model p-m rotor low harmony wave magnetizer；
Fig. 2 is the parameter configuration figure of this utility model p-m rotor low harmony wave magnetizer；
Fig. 3 is this utility model p-m rotor low harmony wave magnetizer magnetic line of force scattergram when magnetizing；
Fig. 4 is this utility model p-m rotor air-gap field wavy curve in motor；
In figure: 1, for iron core, 2, for p-m rotor, 3, for magnetizing coil, N1、N2、N3、…、NmIt is m under a magnetic polarity
Individual pole of magnetizing, Z1、Z2、Z3、…、ZmIt is m magnetizing coil of a magnetic polarity, S1、S2、S3、…、SmM for another magnetic polarity
Individual pole of magnetizing, Y1、Y2、Y3、…、YmFor m magnetizing coil under another magnetic polarity.
Detailed description of the invention
Below in conjunction with Figure of description and embodiment, this utility model is illustrated in greater detail.
This utility model pole of being magnetized by the dentation of m equal central angle by the magnetized head of each magnetic polarity is constituted, Mei Gechong
The central angle that magnetic pole the occupies magnetic potential that magnetizes that the magnetizing coil extremely gone up produces that magnetizes with this becomes low harmony wave proportionate relationship, and modulation system fills
Magnetic pole applies the action of a magnetic field to permanent magnetic powder in p-m rotor forming process so that permanent magnetic powder material internal magnetic domain is adjusted
The arrangement of control property, so that the harmonic content producing air-gap field when loading motor after p-m rotor molding is lower.With traditional
Comparing with modified model magnetizer, the magnetizer utilizing said method to prepare can make p-m rotor produce air-gap field waveform
Harmonic content lower.
Magnetize embodiment as it is shown in figure 1, this device is the two poles of the earth p-m rotor 2 low harmony wave, mainly by iron core 1 and magnetizing coil
3 compositions, it is that p-m rotor 2 magnetizes that magnetizing coil 3 connect the electric current that magnetizes to constitute the magnetic potential that magnetizes.The axial length of iron core 1 with
The axial length of p-m rotor 2 is equal.
As in figure 2 it is shown, be the parameter configuration diagram of this utility model p-m rotor low harmony wave magnetizer, iron core 1 sets
Putting 2m dentation to magnetize pole, the center of circle angle that each pole of magnetizing is occupied is β=π/m electrical radian, and magnetizing coil 3 is by being wound on 2m tooth
Shape magnetizes the Z of pole1、Z2、Z3、…、ZmAnd Y1、Y2、Y3、…、 YmConstituting, the yoke being coated on periphery, pole of magnetizing in iron core 1 is
Magnetize the field circuit that magnetic field provides necessary, and combine dentation pole of magnetizing and double as the holding components of magnetizer.One magnetic polarity
Magnetized head magnetized pole N by m1、N2、N3、…、NmConstitute, magnetize that extremely to go up rotating around magnetizing coil be Z1、Z2、Z3、…、Zm, fill
What magnetic coil connected magnetize, and electric current is I1、I2、I3、…、Im；The magnetized head of another magnetic polarity is by m the pole S that magnetizes1、S2、
S3、…、SmConstitute, magnetize that extremely to go up rotating around magnetizing coil be Y1、Y2、Y3、…、Ym, the electric current that magnetizes that connects of magnetizing coil be I1、
I2、I3、…、Im。
In this utility model p-m rotor low harmony wave magnetization method and device, the number of turn of described each magnetizing coil and drawing
It is all different that outlet connects the electric current that magnetizes of the pulse power, to produce the magnetic potential that magnetizes of modulation system, carries out for p-m rotor 2
Magnetizing of low harmony wave mode；During under one magnetic polarity, m magnetizes extremely, the magnetize position angle at place, pole of kth is k π/m electrical radian,
The magnetizing coil number of turn is Wk, the electric current that magnetizes that connects be Ik, the magnetic potential that magnetizes of generation is Fk=WkIk；Kth and kth+1 magnetize
Pole produce magnetize meet between magnetic potential low harmony wave modulation relation be Fk+1/Fk=Wk+1Ik+1/WkIk=sin [(k+1) π/m]/sin
(k π/m), wherein, k=1,2,3 ..., m-1；In like manner, the m of another magnetic polarity pole and above-mentioned magnetic polarity pole of magnetizing of magnetizing is closed
It is symmetrical arranged in magnetic polarity geometric center lines.
In this utility model p-m rotor low harmony wave magnetization method and device, make for simplifying magnetizing coil, each magnetize
Coil turn can be configured to relation of equality, i.e. W1=W2=...=Wm, so, the electric current that magnetizes of magnetizing coil is configured to low humorous
Ripple relation is Ik+1/Ik=sin [(k+1) π/m]/sin (k π/m), k=1,2,3 ..., m-1.
In this utility model p-m rotor low harmony wave magnetization method and device, for simplifying the power supply architecture providing the electric current that magnetizes
And cost, the electric current that magnetizes of each magnetizing coil can be configured to relation of equality, i.e. I1=I2=...=Im, such magnetizing coil
It is W that the number of turn is configured to low harmony wave relationk+1/Wk=sin [(k+1) π/m]/sin (k π/m), k=1,2,3 ..., m-1.
In above-described embodiment, arrange to benefit the control of permanent magnetic powder material internal magnetic domain, the configuration of magnetizer
Magnetizing the foundation of magnetic potential modulation relation and meeting in the pole that should be suitable for magnetizing, dentation magnetizes pole and magnetizing coil all can manufacture and design
One-tenth can change the structure of formula.In the various embodiments described above, iron core 1 soft magnetic materials that permeability is high is made so that magnetic field of magnetizing
It is in undersaturated condition；Arranging to benefit the control of permanent magnetic powder material internal magnetic domain, each magnetizes extremely to put into and magnetizes
The breach that coil is arranged should be the least, uses magnetic material to fill up this breach and benefits the low harmony wave effect realizing p-m rotor 2.
By this utility model p-m rotor low harmony wave magnetization method and device, it is achieved that in p-m rotor 2 forming process
In permanent magnetic powder applied a kind of modulation system magnetize magnetic potential effect so that permanent magnetic powder material internal magnetic domain generation control is arranged
Row, are illustrated in figure 3 magnetic line of force distribution situation when this utility model p-m rotor low harmony wave magnetizes.With traditional and modified model
Magnetizer is compared, and the harmonic content of the air-gap field ripple produced when loading motor after p-m rotor 2 molding is lower, such as Fig. 4
Shown in, wherein τ is the pole span of p-m rotor 2.
The various embodiments described above are the two poles of the earth p-m rotor 2 low harmony wave magnetization method and device, but also promote and be applicable to multipole
Situation.
The foregoing is only a kind of embodiment of the present utility model, not in order to limit this utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent substitution and improvement etc. made, such as by the internal rotor in the present embodiment
Structure changes outer-rotor structure into or changes tray type structure etc. into, within should be included in protection domain of the present utility model.
Claims (4)
1. a p-m rotor low harmony wave magnetizer, is mainly made up of iron core and magnetizing coil, and on iron core, each polarity fills
Magnetic head is magnetized by m pole, each magnetizing coil extremely gone up and be coated on the yoke of periphery, pole of magnetizing and constitute of magnetizing；Described is every
It is different that the number of turn of individual magnetizing coil and lead-out wire connect the electric current of the pulse power, thus produces the different magnetic potentials that magnetizes,
P-m rotor for being placed under the cartridge that magnetizes magnetizes；It is characterized in that, each pole of magnetizing during m magnetizes extremely under a magnetic polarity
The center of circle angle occupied is β=π/m electrical radian, and the magnetize position angle of pole of kth is k π/m electrical radian, and the magnetizing coil number of turn is
Wk, the electric current that magnetizes that connects be Ik, the magnetic potential that magnetizes of generation is Fk=WkIk；Kth and kth+1 magnetize pole produce the magnetic that magnetizes
Meeting low harmony wave modulation relation between gesture is Fk+1/Fk=Wk+1Ik+1/WkIk=sin [(k+1) π/m]/sin (k π/m), wherein, k
=1,2,3 ..., m-1；Pole is magnetized about magnetic polarity geometric center lines with above-mentioned magnetic polarity in the m of another magnetic polarity pole of magnetizing
It is symmetrical arranged.
A kind of p-m rotor low harmony wave magnetizer the most according to claim 1, it is characterised in that each magnetizing coil circle
Number is configured to relation of equality, i.e. W1=W2=...=Wm, so, the electric current that magnetizes of magnetizing coil is configured to low harmony wave relation and is
Ik+1/Ik=sin [(k+1) π/m]/sin (k π/m), k=1,2,3 ..., m-1.
A kind of p-m rotor low harmony wave magnetizer the most according to claim 1, it is characterised in that each magnetizing coil
The electric current that magnetizes is configured to relation of equality, i.e. I1=I2=...=Im, such magnetizing coil number of turn is configured to low harmony wave relation and is
Wk+1/Wk=sin [(k+1) π/m]/sin (k π/m), k=1,2,3 ..., m-1.
A kind of p-m rotor low harmony wave magnetizer the most according to claim 1, it is characterised in that the axle of described iron core
Equal with the axial length of p-m rotor to length, the breach arranged to embed magnetizing coil between pole that magnetizes uses magnetic material
Material is filled up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620360485.XU CN205829410U (en) | 2016-04-26 | 2016-04-26 | P-m rotor low harmony wave magnetizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620360485.XU CN205829410U (en) | 2016-04-26 | 2016-04-26 | P-m rotor low harmony wave magnetizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205829410U true CN205829410U (en) | 2016-12-21 |
Family
ID=58148433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620360485.XU Expired - Fee Related CN205829410U (en) | 2016-04-26 | 2016-04-26 | P-m rotor low harmony wave magnetizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205829410U (en) |
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2016
- 2016-04-26 CN CN201620360485.XU patent/CN205829410U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161221 Termination date: 20180426 |
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| CF01 | Termination of patent right due to non-payment of annual fee |