CN207068580U - The pre-conditioned device that permanent magnet machine rotor magnetizes - Google Patents
The pre-conditioned device that permanent magnet machine rotor magnetizes Download PDFInfo
- Publication number
- CN207068580U CN207068580U CN201720774324.XU CN201720774324U CN207068580U CN 207068580 U CN207068580 U CN 207068580U CN 201720774324 U CN201720774324 U CN 201720774324U CN 207068580 U CN207068580 U CN 207068580U
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- China
- Prior art keywords
- variable linear
- electric capacity
- permanent magnet
- rotor
- machine rotor
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Abstract
The pre-conditioned device that permanent magnet machine rotor magnetizes belongs to permanent magnet machine rotor technical field, more particularly to the pre-conditioned device that a kind of permanent magnet machine rotor magnetizes.The utility model provide it is a kind of overcomes magnetic domain in existing p-m rotor magnetization method to arrange insufficient weak point, be beneficial to improvement and magnetize effect, improve the pre-conditioned device that the permanent magnet machine rotor of magneto performance magnetizes.The utility model includes preliminary filling magnetic controller and magnet charger, the columnar iron core that its structural feature magnet charger includes magnetizing coil and section is endless belt pole shoe；Magnetizing coil is on columnar iron core；The preliminary filling magnetic controller includes variable linear inductance L1, variable linear electric capacity C1, variable linear electric capacity C2, variable linear resistance R and active nonlinear resistance RN, variable linear inductance L1One end respectively with variable linear resistance R one end, variable linear electric capacity C2One end, switch K one end are connected.
Description
Technical field
The utility model belongs to permanent magnet machine rotor technical field, more particularly to a kind of permanent magnet machine rotor magnetize it is presetting
Control device.
Background technology
At present, magneto is increasingly extensive with the various features such as its lightness, high performance, energy-efficient, application；Together
When, magneto vibrate and noise in terms of exist the problem of also receive much concern, p-m rotor establish air-gap field feature
It is the key factor for influenceing magneto vibration and noise.
The air-gap field that existing permanent magnet machine rotor is established in motor is difficult to sine wave, wherein in the presence of a large amount of harmonic waves
Composition, therefore copper loss, iron loss and the miscellaneous consumption of motor are added, efficiency decline, temperature rise rise, vibration noise are big.In addition, harmonic wave
Magnetic field can also produce pulsating electromagnetic torque and cause speed oscillation, influence operation stability, reliability and service life, direct shadow
Ring using and promoting for magneto.The harmonic wave that p-m rotor produces air-gap field how is reduced, has become restriction lifting forever
The key core technology of magneto performance.
2014.09.17 patent of invention " a kind of p-m rotor sine magnetization method and the device " (application number applied：
CN2014104726101, publication No.：CN104319060A, date of publication：2015.01.28) and the utility model applied on the same day it is special
Sharp " p-m rotor present invention sine magnetizer " (application number：CN201420532675.6, authorize publication No.：The U of CN 204361868, award
Weigh date of publication：2015.05.27), a kind of p-m rotor sine magnetization method and device are disclosed, two magnetic poles turn with permanent magnetism
The contact surface of son is divided into 2m on the magnetic pole geometric center lines i.e. symmetrical arc of NS poles boundary line, each magnetizes
The width of arc on extremely and interval are respectively into sinusoidal proportionate relationship, and the magnetic pole is in p-m rotor forming process to permanent magnetism
Magnetic applies magnetic fields so that control arrangement occurs for permanent magnetic powder material internal magnetic, so that being molded in p-m rotor
Air-gap field waveform caused by loading motor afterwards is more nearly sine wave.
2016.04.26 patent of invention " a kind of p-m rotor low harmony wave magnetization method and the device " (application number applied：
CN201610264517.0, publication No.：CN105762999A, date of publication：2016.07.13) and the utility model applied on the same day it is special
Sharp " p-m rotor low harmony wave magnetizer " (application number：CN201620360485.X, authorize publication No.：
CNCN205829410U, authorize date of publication：2016.12.21), a kind of p-m rotor low harmony wave magnetization method and device are disclosed,
The magnetized head of each magnetic polarity is made up of the dentation magnetic pole of m equal central angles, each magnetic pole account for position angle coordinate
Magnetizing coil in magnetic pole magnetizes magnetic potential into low harmony wave modulation ratio relation with magnetizing caused by electric current, the magnetic pole is in permanent magnetism
Magnetic fields are applied to permanent magnetic powder in rotor forming process so that control arrangement occurs for permanent magnetic powder material internal magnetic,
Make the harmonic content for producing air-gap field during p-m rotor loading motor lower.It is a kind of modified magnetization method and device.
But the ampere-turn that magnetized in this method and apparatus is DC pulse form, due to permanent magnetic powder material internal magnetic
Farmland, which exists, to influence each other and restrictive function, and some magnetic domains only are difficult to activate, turn to and effectively arrange by the magnetize effect of ampere-turn of direct current
Sequence, it is understood that there may be influence the deficiency of patented technology effect.
The content of the invention
The utility model is aiming above mentioned problem, there is provided one kind can overcome magnetic domain in existing p-m rotor magnetization method to arrange
Arrange insufficient weak point, be beneficial to improvement and magnetize effect, improve magneto performance permanent magnet machine rotor magnetize it is pre-
Regulation device.
To achieve the above object, the utility model adopts the following technical scheme that, the utility model includes preliminary filling magnetic controller
And magnet charger, the columnar iron core that its structural feature magnet charger includes magnetizing coil and section is endless belt pole shoe；Magnetizing coil is embedding
On columnar iron core；
The preliminary filling magnetic controller includes variable linear inductance L1, variable linear electric capacity C1, variable linear electric capacity C2, it is variable
Linear resistance R and active nonlinear resistance RN, variable linear inductance L1One end respectively with variable linear resistance R one end, variable linear
Electric capacity C2One end, switch K one end are connected, the switch K other ends and magnetizing coil L2One end is connected, the variable linear resistance R other ends point
Not with variable linear electric capacity C1One end, active nonlinear resistance RNOne end is connected, variable linear inductance L1The other end, variable linear
Electric capacity C1The other end, variable linear electric capacity C2The other end, active nonlinear resistance RNThe other end, magnetizing coil L2The other end is grounded.
As a kind of preferred scheme, the axial length of iron core described in the utility model and the axial length phase of p-m rotor
Deng.
The utility model beneficial effect.
As shown in figure 3, the utility model pre-magnetizing controller circuitry is a modified Chau's circuit, inductance L in circuit1With
Electric capacity C2Constitute a LC oscillating circuit, active nonlinear resistance RN(Cai Shi diodes) and variable linear electric capacity C1Constitute
One Active RC filter circuit, they are coupled by a variable linear resistance R, are formd the typical complexity that can produce and are mixed
The non-linear cai's circuit of ignorant phenomenon.In this way, apply a kind of voltage or electricity with time chaotic characteristic on magnetizing coil
Stream so that magnetic field of magnetizing has chaos state, realizes uniformly arrangement so as to activate all magnetic domains in p-m rotor, is done for formal magnetize
It is good to prepare, that is, realize the pre-conditioned to magnetize.
In use, p-m rotor is placed in the utility model iron core, closure switch K is carried out the utility model to p-m rotor
After pre-conditioned, rotor is taken out from iron core, then is formally magnetized.
Brief description of the drawings
The utility model is described further with reference to the accompanying drawings and detailed description.Scope of protection of the utility model
It is not only limited to the statement of herein below.
Fig. 1 is the pre-conditioned installation drawing that the utility model p-m rotor magnetizes.
Fig. 2 is that the utility model p-m rotor magnetizes pre-conditioned embodiment magnet charger schematic diagram.
Fig. 3 is that the utility model p-m rotor magnetizes pre-conditioned embodiment circuit diagram.
Fig. 4 is that the utility model p-m rotor magnetizes pre-conditioned embodiment voltage waveform.
In figure：1 is iron core, and 2 be p-m rotor, and 3 be magnetizing coil.
Embodiment
As illustrated, the utility model includes preliminary filling magnetic controller and magnet charger, magnet charger includes magnetizing coil and section
For the columnar iron core of endless belt pole shoe；Magnetizing coil is on columnar iron core；
The preliminary filling magnetic controller includes variable linear inductance L1, variable linear electric capacity C1, variable linear electric capacity C2, it is variable
Linear resistance R and active nonlinear resistance RN, variable linear inductance L1One end respectively with variable linear resistance R one end, variable linear
Electric capacity C2One end, switch K one end are connected, the switch K other ends and magnetizing coil L2One end is connected, the variable linear resistance R other ends point
Not with variable linear electric capacity C1One end, active nonlinear resistance RNOne end is connected, variable linear inductance L1The other end, variable linear
Electric capacity C1The other end, variable linear electric capacity C2The other end, active nonlinear resistance RNThe other end, magnetizing coil L2The other end is grounded.
The configuration of pre-magnetizing controller circuitry parameter makes the maximum Lyapunov exponent of the circuit be more than zero.
As shown in figure 3, the voltage u of chaos state will be presented by switching Kc2Magnetizing coil is applied to, i.e., big small inductor L2On
Form uL2, voltage uL2Wavy curve it is as shown in Figure 4.
The axial length of the iron core is equal with the axial length of p-m rotor；Magnetize field homogeneity, and the effect that magnetizes is good.
It is magnet charger coil power supply that the utility model preliminary filling magnetic controller, which produces the voltage with chaos characteristic or electric current,
Magnetizing coil produces magnetic potential and generates pre-magnetizing magnetic field by iron core, applies the regulation and control of chaos state magnetic field to p-m rotor, activates permanent magnetism
Magnetic domain is uniformly arranged in rotor, is ready for follow-up formally magnetize.
For the preliminary filling magnetic tuning beneficial to permanent magnetic powder material internal magnetic, after K closures are switched, chaos is presented originally
The chaos characteristic of the control circuit of state may change, and be that this can be by adjusting variable linear inductance L1, variable linear electricity
Hold C1、C2, variable linear resistance R and nonlinear resistance RNTo regulate and control the characteristic of pre-magnetizing controller circuitry so that filling after adjustment
The maximum Lyapunov exponent of magnetic circuit is still above zero, to adapt to the needs of pre-magnetizing.
During engineer applied is implemented, it may be considered that with the equivalent inductance L of magnetizing coil2Substitute inductance L1, and pass through adjustment circuit
In other component parameters make L2On voltage or electric current present chaos state, i.e., with the equivalent inductance L of magnetizing coil2Substitute inductance
L1The maximum Lyapunov exponent of charge circuit is still above zero afterwards, so as to simplify interlock circuit, beneficial to reducing cost.
Above-described embodiment is the two poles of the earth integrated permanent magnet rotor preliminary filling magnetic tuning method and apparatus, can be promoted suitable for multipole feelings
Condition, it can be used for the preliminary filling magnetic tuning of monolithic magnet steel.
It is that pre-conditioned is carried out to permanent magnet machine rotor using the utility model and not carried out in advance using the utility model below
Regulate and control relevant parameter contrast table.
Certain model discharge pump motor of washing machine p-m rotor magnetic property improves situation.
It is understood that above with respect to specific descriptions of the present utility model, it is merely to illustrate the utility model and is not
The technical scheme described by the utility model embodiment is limited to, it will be understood by those within the art that, still can be with
The utility model is modified or equivalent substitution, to reach identical technique effect；As long as satisfaction uses needs, all in this reality
Within new protection domain.
Claims (2)
1. the pre-conditioned device that permanent magnet machine rotor magnetizes, including preliminary filling magnetic controller and magnet charger, it is characterised in that magnet charger
Including the columnar iron core that magnetizing coil and section are endless belt pole shoe；Magnetizing coil is on columnar iron core；
The preliminary filling magnetic controller includes variable linear inductance L1, variable linear electric capacity C1, variable linear electric capacity C2, variable linear
Resistance R and active nonlinear resistance RN, variable linear inductance L1One end respectively with variable linear resistance R one end, variable linear electric capacity
C2One end, switch K one end are connected, the switch K other ends and magnetizing coil L2One end is connected, the variable linear resistance R other ends respectively with
Variable linear electric capacity C1One end, active nonlinear resistance RNOne end is connected, variable linear inductance L1The other end, variable linear electric capacity
C1The other end, variable linear electric capacity C2The other end, active nonlinear resistance RNThe other end, magnetizing coil L2The other end is grounded.
2. the pre-conditioned device that permanent magnet machine rotor magnetizes according to claim 1, it is characterised in that the axial direction of the iron core
Length is equal with the axial length of p-m rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720774324.XU CN207068580U (en) | 2017-06-29 | 2017-06-29 | The pre-conditioned device that permanent magnet machine rotor magnetizes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720774324.XU CN207068580U (en) | 2017-06-29 | 2017-06-29 | The pre-conditioned device that permanent magnet machine rotor magnetizes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207068580U true CN207068580U (en) | 2018-03-02 |
Family
ID=61507709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720774324.XU Withdrawn - After Issue CN207068580U (en) | 2017-06-29 | 2017-06-29 | The pre-conditioned device that permanent magnet machine rotor magnetizes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207068580U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107123503A (en) * | 2017-06-29 | 2017-09-01 | 辽宁科技学院 | Pre-regulation and control device for permanent magnet motor rotor magnetization |
| CN114301247A (en) * | 2021-12-28 | 2022-04-08 | 华中科技大学 | Integral magnetizing method and device for multi-pole motor |
-
2017
- 2017-06-29 CN CN201720774324.XU patent/CN207068580U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107123503A (en) * | 2017-06-29 | 2017-09-01 | 辽宁科技学院 | Pre-regulation and control device for permanent magnet motor rotor magnetization |
| CN114301247A (en) * | 2021-12-28 | 2022-04-08 | 华中科技大学 | Integral magnetizing method and device for multi-pole motor |
| CN114301247B (en) * | 2021-12-28 | 2023-02-10 | 华中科技大学 | Integral magnetizing method and device for multi-pole motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180302 Effective date of abandoning: 20190118 |
|
| AV01 | Patent right actively abandoned |