CN205509813U - Novel low fault -tolerant formula permanent magnetism magnetic flow switching motor of making an uproar that shakes - Google Patents
Novel low fault -tolerant formula permanent magnetism magnetic flow switching motor of making an uproar that shakes Download PDFInfo
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- CN205509813U CN205509813U CN201620060777.1U CN201620060777U CN205509813U CN 205509813 U CN205509813 U CN 205509813U CN 201620060777 U CN201620060777 U CN 201620060777U CN 205509813 U CN205509813 U CN 205509813U
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- fault
- tolerant
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- permanent magnet
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- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The utility model discloses a novel low fault -tolerant formula permanent magnetism magnetic flow switching motor of making an uproar that shakes. Specifically include: two thin fault -tolerant teeth are cut apart into to the fault -tolerant tooth that switches motor stator with fault -tolerant formula permanent magnetism magnetic flow, and the thin fault -tolerant tooth breadth of tooth be the half the of the former fault -tolerant breadth of tooth, and the interval between two thin fault -tolerant teeth is equal with the former fault -tolerant tooth breadth of tooth. It is big that fault -tolerant formula permanent magnetism magnetic flow switches motor air -gap flux density, and the stator tooth is carefully narrow, and the vibration noise is obvious. The utility model discloses on switching electrical machines design's basis based on fault -tolerant formula permanent magnetism magnetic flow, motor stator adopts double volume side set structure, reduces the motor vibration noise, and the electromagnetic performance of motor also improves simultaneously, include under the prerequisite that the torque reduces slightly, obviously reduce the torque of motor tooth's socket, optimize the back electromotive force wave form and reduce torque ripple.
Description
Technical field
This utility model relates to flux switch motor, and the particularly vibration noise of fault-tolerance permanent magnet flux switch motor weakens,
Belong to the technical field that New-type electric machine manufactures.
Background technology
Fault-tolerance permanent magnet flux switch motor has been obtained for being widely applied at present, from automobile to aerospace various fields,
Fault-tolerance permanent magnet flux switch motor all plays highly important role.This mainly has benefited from fault-tolerance permanent magnet magnetic flux switching electricity
Several distinguishing features of machine, including high torque density, high mechanical properties and easy heat radiation etc..Fault-tolerance permanent magnet magnetic flux switching electricity
Machine have employed the magnetic material of high energy product and instead of traditional Exciting Windings for Transverse Differential Protection, not only eliminates the negative shadow that Exciting Windings for Transverse Differential Protection is brought
Ringing, and simplify the frame for movement of motor, make running reliability of motor improve, mechanical loss reduces the most accordingly.
Fault-tolerance permanent magnet flux switch motor is except the feature outer volume possessing magneto is little, power density is high, efficiency is high
Deng), its special character also resides in:
(1) physical isolation: use concentratred winding, and each tooth on coiling one phase winding, between winding by fault-tolerant teeth every
From, thus make the contact not existed between each phase winding physically, it is to avoid phase fault；
(2) it is thermally isolated: due to the factor of heating, if winding etc. is all on stator, easily dispel the heat.
(3) air gap flux density is big: fault-tolerance permanent magnet flux switch motor air gap flux density is big so that motor output torque is big, simultaneously
Stator tooth is narrower, causes motor can produce bigger vibration noise.
Although fault-tolerance permanent magnet flux switch motor has a series of advantage, but due to permanent magnet, armature winding is all at stator
On, therefore stator tooth is narrower, thus causes vibration and noise that motor is bigger, reduces fault-tolerance permanent magnet flux switch motor
Vibration noise becomes the focus of research both at home and abroad.
Along with improving constantly of permanent magnetic material performance, fault-tolerance permanent magnet flux switch motor is increasingly widely used in high-performance
Speed and position control system.These application are except needs motor possesses safety and operates with failure in addition to ability, at motor
Job stability, vibration and noise aspect it is also proposed higher requirement.So reducing vibration noise is to have very much value
's.
The vibration noise source of fault-tolerance permanent magnet flux switch motor includes mechanical vibration noise (rotor bearing friction), electromagnetic vibration
Moving noise.Wherein electromagnetic vibration noise is the main cause causing fault-tolerance permanent magnet flux switch motor vibration noise.Motor gas
Low order in gap radially Reeb can produce bigger electromagnetic vibration noise, weakens low order radially Reeb in air gap and can effectively suppress electricity
Magnetic vibration noise.Therefore this patent propose a kind of ensure motor electromagnetic performance constant far short of what is expected the most excellent on the premise of,
The low order of the motor gas-gap novel low fault-tolerance permanent magnet flux switch motor of making an uproar that shakes that radially Reeb can be the most weakened, fall is shaken and is subtracted
Effect of making an uproar is obvious.
Utility model content
This utility model is on the basis of the defect that existing fault-tolerance permanent magnet flux switch motor vibration noise is big, the one of proposition
Plant novel stator structure, it is therefore intended that reduce the vibration noise of fault-tolerance permanent magnet flux switch motor.The novel low fault tolerant type of making an uproar that shakes
The stator of permanent magnet flux switching motor uses double volume side set structure, is used for reducing motor oscillating noise, slightly drops in torque simultaneously
On the premise of low, can significantly reduce cogging torque, optimize back emf waveform and reduce output torque ripple, promote
Motor performance.
Specifically, this utility model is to take following technical scheme to realize: the novel low fault-tolerance permanent magnet magnetic flux of making an uproar that shakes
Switch motor, including stator, rotor, is air gap between stator and rotor；
Described stator uses double volume side set structure, and interlock inside stator is distributed fault-tolerant teeth and stator tooth, and described fault-tolerant teeth divides
It is slit into two thin fault-tolerant teeths, is embedded with in the middle of stator tooth on permanent magnet, and stator tooth and is wound with armature winding, each described armature
Separated by two thin fault-tolerant teeths between winding；The salient-pole structure of the facewidth such as described rotor is, the half of the described stator tooth facewidth with
The rotor facewidth equal.
Further, described armature winding uses five phases energisings, for centralized fractional-slot winding, only around a phase winding on each tooth.
Further, described stator and rotor portion are pressed into by the silicon steel sheet stack with high magnetic permeability.
Further, half and each thin fault-tolerant teeth facewidth of the described stator tooth facewidth meets 16: 7.
This utility model has the advantages that
The most novel low fault-tolerance permanent magnet flux switch motor of making an uproar that shakes, it is possible to reduce vibration noise, in terms of making motor oscillating noise
Performance is obviously improved.
2. stator uses double volume side set structure, the described stator tooth facewidth and two thin fault-tolerant teeth facewidth to meet 16: 7, it is possible to turning
On the premise of square slightly declines, effectively reduce cogging torque, make back emf waveform more sinusoidal, effectively reduce output
Torque ripple.
5. isolated by double volume side set between winding, there is not physical contact, it is to avoid phase fault.
Accompanying drawing explanation
Fig. 1 is novel low fault-tolerance permanent magnet flux switch motor and the tradition fault-tolerance permanent magnet magnetic flux switching of making an uproar of shaking of the present utility model
The structural representation comparison diagram of motor；A () is the structural representation of tradition fault-tolerance permanent magnet flux switch motor；(b) this practicality
The novel novel low fault-tolerance permanent magnet flux switch motor structural representation of making an uproar that shakes.
Fig. 2 is novel low fault-tolerance permanent magnet flux switch motor and the tradition fault-tolerance permanent magnet magnetic flux switching of making an uproar of shaking of the present utility model
Motor cogging torque comparison diagram.
Fig. 3 is novel low fault-tolerance permanent magnet flux switch motor and the tradition fault-tolerance permanent magnet magnetic flux switching of making an uproar of shaking of the present utility model
The counter electromotive force comparison diagram of motor.
Fig. 4 is novel low fault-tolerance permanent magnet flux switch motor and the tradition fault-tolerance permanent magnet magnetic flux switching of making an uproar of shaking of the present utility model
The counter electromotive force harmonic wave comparison diagram of motor.
Fig. 5 is novel low fault-tolerance permanent magnet flux switch motor and the tradition fault-tolerance permanent magnet magnetic flux switching of making an uproar of shaking of the present utility model
The output torque comparison diagram of motor.
Fig. 6 is novel low fault-tolerance permanent magnet flux switch motor and the tradition fault-tolerance permanent magnet magnetic flux switching of making an uproar of shaking of the present utility model
The radial force ripple comparison diagram of motor.
Fig. 7 is novel low fault-tolerance permanent magnet flux switch motor and the tradition fault-tolerance permanent magnet magnetic flux switching of making an uproar of shaking of the present utility model
The acoustic power level comparison diagram of motor.
Label title in Fig. 1: 1, permanent magnet, 2, armature winding, 3, rotor, 4, stator, 5, fault-tolerant teeth, 6, stator
Tooth.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out clear,
It is fully described by.
The novel low fault-tolerance permanent magnet flux switch motor of making an uproar that shakes, including stator 4, rotor 3, is air gap between stator 4 and rotor 3；
Described stator 4 uses double volume side set 5 structure, and interlock inside stator 4 is distributed fault-tolerant teeth 5 and stator tooth 6, described fault-tolerant teeth 5
It is divided into two thin fault-tolerant teeths 5, in the middle of described stator tooth 6, is embedded with permanent magnet 1, and 6 be wound with armature winding 2, respectively on stator tooth
Separated by two thin fault-tolerant teeths 5 between individual described armature winding 2；The salient-pole structure of the facewidth such as described rotor 3 is, described stator tooth
Half and each thin fault-tolerant teeth 5 facewidth of 6 facewidth meet 16: 7.
Described armature winding 2 uses five phases energisings, for centralized fractional-slot winding, only around a phase winding on each tooth.
Described stator 4 and rotor 3 part are pressed into by the silicon steel sheet stack with high magnetic permeability.
Half and the rotor tooth facewidth of the described stator tooth facewidth are equal.
As it is shown in figure 1, found by contrast, the novel low fault-tolerance permanent magnet flux switch motor of making an uproar that shakes, including stator 4 and rotor 3；
Stator 4 uses double volume side set 5 structure, specifically includes: the fault-tolerant teeth 5 of fault-tolerance permanent magnet flux switch motor stator is divided into two
Individual thin fault-tolerant teeth 5, thin fault-tolerant teeth 5 facewidth is the half that former fault-tolerant teeth 5 is wide, two thin fault-tolerant teeth 5 spacing and former fault-tolerant teeth 5 facewidth
Equal；Armature winding 2 and permanent magnet 1 is included on stator 4；The salient-pole structure of the facewidth such as rotor 3 is；Stator 4 and rotor 3 it
Between be air gap；The embedded permanent magnet 1 of teeth portion of each stator 4.Use five phase current energisings, with crossing two between armature winding 2
Wide thin fault-tolerant teeth 5 separates, and reduces and influences each other between winding.
Novel low fault-tolerance permanent magnet flux switch motor stator employing double volume side set structure of making an uproar of shaking in this utility model, such as Fig. 2 institute
Showing, it is possible to effectively reduce cogging torque, novel low shaking makes an uproar fault-tolerance permanent magnet flux switch motor compared to tradition fault tolerant type forever
Magnetic flux switch motor cogging torque reduces by 43%.Optimize back emf waveform, as shown in Figure 3 and Figure 4, novel low appearance of making an uproar of shaking
Wrong formula permanent magnet flux switching motor back emf waveform is more sinusoidal, and counter electromotive force aberration rate is reduced to 7.6% by 9.1%.Reduce defeated
Go out torque ripple, as it is shown in figure 5, novel low shaking makes an uproar fault-tolerance permanent magnet flux switch motor compared to tradition fault-tolerance permanent magnet magnetic flux
Switch motor torque is dropped to 25.4N/m, torque drop 6.3% by 27.1N/m.But torque ripple drops to 3.8% from 5.8%.
As shown in Figure 6, novel low the make an uproar low order radially Reeb (2 rank) of fault-tolerance permanent magnet flux switch motor of shaking substantially reduces, and 0 rank are
Average radial power will not cause electromagnetic vibration noise.Motor performance in terms of vibration noise is obviously improved, as it is shown in fig. 7,
Novel low the make an uproar total acoustic power level of fault-tolerance permanent magnet flux switch motor of shaking drops to 68.1dB from 73.4dB, and noise declines about
66%, noise reduction is obvious.Meanwhile, in conjunction with fault-tolerant magneto high torque density, high efficiency and the advantage of fault-tolerance, newly
Type is low, and shake fault-tolerance permanent magnet flux switch motor of making an uproar obtains more excellent performance.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " install ",
" be connected ", " connection " should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or one
Ground connects；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to by between intermediary
Connect connected, can be the connection of two element internals.For the ordinary skill in the art, can manage with concrete condition
Solve above-mentioned term concrete meaning in this utility model.
Claims (4)
- The most novel low fault-tolerance permanent magnet flux switch motor of making an uproar that shakes, it is characterised in that include stator (4), rotor (3), determine It is air gap between son (4) and rotor (3)；Described stator (4) uses double volume side set (5) structure, what stator (4) inner side was staggered be distributed fault-tolerant teeth (5) and Stator tooth (6), described fault-tolerant teeth (5) is divided in the middle of two thin fault-tolerant teeths (5), stator tooth (6) and is embedded with permanent magnet (1), and armature winding (2) on stator tooth (6), it is wound with, by two thin fault-tolerant teeths between each described armature winding (2) (5) separate；The salient-pole structure of the facewidth such as described rotor (3) is, the half of described stator tooth (6) facewidth and rotor (3) The facewidth equal.
- The novel low fault-tolerance permanent magnet flux switch motor of making an uproar that shakes the most according to claim 1, it is characterised in that described electricity Pivot winding (2) uses five phases energisings, for centralized fractional-slot winding, only around a phase winding on each tooth.
- The novel low fault-tolerance permanent magnet flux switch motor of making an uproar that shakes the most according to claim 1, it is characterised in that described fixed Son (4) and rotor (3) part are pressed into by the silicon steel sheet stack with high magnetic permeability.
- The novel low fault-tolerance permanent magnet flux switch motor of making an uproar that shakes the most according to claim 1, it is characterised in that described fixed Half and each thin fault-tolerant teeth (5) facewidth of sub-tooth (6) facewidth meet 16: 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620060777.1U CN205509813U (en) | 2016-01-21 | 2016-01-21 | Novel low fault -tolerant formula permanent magnetism magnetic flow switching motor of making an uproar that shakes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620060777.1U CN205509813U (en) | 2016-01-21 | 2016-01-21 | Novel low fault -tolerant formula permanent magnetism magnetic flow switching motor of making an uproar that shakes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205509813U true CN205509813U (en) | 2016-08-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620060777.1U Expired - Fee Related CN205509813U (en) | 2016-01-21 | 2016-01-21 | Novel low fault -tolerant formula permanent magnetism magnetic flow switching motor of making an uproar that shakes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205509813U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109842257A (en) * | 2019-03-04 | 2019-06-04 | 哈尔滨工业大学 | Anti- salient pole type axial direction parallel type multiphase permanent magnet fault-tolerant electric machine |
-
2016
- 2016-01-21 CN CN201620060777.1U patent/CN205509813U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109842257A (en) * | 2019-03-04 | 2019-06-04 | 哈尔滨工业大学 | Anti- salient pole type axial direction parallel type multiphase permanent magnet fault-tolerant electric machine |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160824 Termination date: 20170121 |