CN206481197U - Anti- salient pole permanent magnet reluctance motor - Google Patents
Anti- salient pole permanent magnet reluctance motor Download PDFInfo
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- CN206481197U CN206481197U CN201720086302.4U CN201720086302U CN206481197U CN 206481197 U CN206481197 U CN 206481197U CN 201720086302 U CN201720086302 U CN 201720086302U CN 206481197 U CN206481197 U CN 206481197U
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- permanent magnet
- salient pole
- reluctance motor
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- motor
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- 238000004804 winding Methods 0.000 claims abstract description 15
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 14
- 238000004080 punching Methods 0.000 claims abstract description 7
- 210000003298 dental enamel Anatomy 0.000 claims abstract description 4
- 238000009827 uniform distribution Methods 0.000 claims abstract description 4
- 230000004888 barrier function Effects 0.000 claims description 13
- 241001416181 Axis axis Species 0.000 claims description 3
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 9
- 230000001360 synchronised effect Effects 0.000 abstract description 8
- 230000006872 improvement Effects 0.000 description 8
- 230000008901 benefit Effects 0.000 description 5
- 230000005347 demagnetization Effects 0.000 description 4
- 229910052761 rare earth metal Inorganic materials 0.000 description 4
- 150000002910 rare earth metals Chemical class 0.000 description 4
- 230000005389 magnetism Effects 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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- Synchronous Machinery (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model is related to a kind of anti-salient pole permanent magnet reluctance motor, it is characterized in that, the anti-salient pole permanent magnet reluctance motor includes including rotating shaft, rotor core, ferrite permanent magnet, stator winding, stator core and outer casing base successively from inside to outside, the rotor core passes through rotating shaft in the form of punching is laminated, permanent magnet mounting groove is uniform-distribution with rotor core, the ferrite permanent magnet is bonded in permanent magnet mounting groove and forms even number of poles, stator winding is that enamel insulated wire is made and is uniformly embedded into stator slot, and the stator core is fixed on motor housing.Anti- salient pole permanent magnet reluctance motor combines permagnetic synchronous motor high efficiency and high power density characteristic, while only needing the permanent magnetic field of the relative weak of ferrite permanent-magnet materials generation.The wind-tunnel designed in quadrature axis forms distinctive anti-salient pole nature, and the anti-demagnetization characteristic of motor greatly improved, while ensure that motor has higher efficiency, and does not weaken its mechanical strength.
Description
Technical field
The utility model is related to a kind of motor, and in particular to a kind of anti-salient pole permanent magnet reluctance motor, belongs to Electric Machines and Electric Apparatus
Field.
Background technology
Permagnetic synchronous motor has the advantages that simple in construction, efficiency and power density are high, is because permagnetic synchronous motor magnetic
Chain source is permanent magnet, and motor size can further reduce, and improve power density.While motor operation is in synchronous regime,
Power factor and efficiency can be lifted further, thus driven by power and wind-power electricity generation and electric automobile field obtain extensively should
With.But, because conventional permagnetic synchronous motor needs to rely on rare earth permanent-magnetic material, its Costco Wholesale is too high, and raw material
Without recyclability.If the property of existing Conventional permanent magnet synchronous motor is directly greatly reduced using the meeting of ferrite permanent-magnet materials
Energy.And although existing permanent magnet reluctance motor has broken away from the dependence to rare earth material, but easily there is loss of excitation in structure in it, especially
It is that loss of excitation situation is more serious when motor is heavily loaded.In addition, existing permanent magnet reluctance motor is less efficient.The skill of this area
Art personnel have attempted to new scheme, but the problem never has and properly settled.
Utility model content
There is provided a kind of anti-salient pole permanent-magnet reluctance electrical exactly for technical problem present in prior art for the utility model
Machine, the technical scheme is simple in construction, efficiency high, avoid HTHP demagnetization, with anti-saliency, anti-salient pole permanent-magnet reluctance electrical
Machine combines permagnetic synchronous motor high efficiency and high power density characteristic, while only needing the relatively micro- of ferrite permanent-magnet materials generation
Weak permanent magnetic field.The wind-tunnel designed in quadrature axis forms distinctive anti-salient pole nature, and the anti-demagnetization that motor greatly improved is special
Property, while ensure that motor has higher efficiency, and do not weaken its mechanical strength.
To achieve these goals, the technical solution of the utility model is as follows, a kind of anti-salient pole permanent magnet reluctance motor, and it is special
Levy and be, the anti-salient pole permanent magnet reluctance motor include from inside to outside successively include rotating shaft, rotor core, ferrite permanent magnet,
Stator winding 3, stator core 1 and outer casing base, the rotor core pass through rotating shaft, rotor core in the form of punching is laminated
In be uniform-distribution with permanent magnet mounting groove, the ferrite permanent magnet resin etc., which is bonded in permanent magnet mounting groove, forms even number
Magnetic pole, stator winding is that enamel insulated wire is made and is uniformly embedded into stator slot, and the stator lasmination is fixed on motor housing
On, motor housing contains base, terminals etc., so that motor carries out installation fixation.
As a kind of improvement of the present utility model, air gap is provided between the stator lasmination and rotor core.
As it is of the present utility model it is a kind of improve, the wherein even number of poles in permanent magnet mounting groove, per pole permanent magnet into
The isosceles trapezoid arrangement of lower open-ended, and have the wind-tunnel i.e. air magnetic barrier of isosceles trapezoid between every pole, the presence of air magnetic barrier is not
But motor convex grey subset can be improved, while inner ventilation can be carried out effectively, permanent magnetism temperature is reduced.
As a kind of improvement of the present utility model, the wind-tunnel of the isosceles trapezoid is symmetrically distributed in rotor rotating coordinate system
On quadrature axis axis, isosceles trapezoid is upper bottom close to the side of rotating shaft, is to go to the bottom close to the side of stator, and bottom does not join with air gap
It is logical.Such a design also ensure that the rigidity of structure of rotor on the basis of it ensure that ventilation.
As a kind of improvement of the present utility model, the height of the air magnetic barrier is more than the width of permanent magnet mounting groove, and
The upper bottom of air magnetic barrier, to avoid causing the distortion of field, influences electric efficiency without departing from permanent magnet mounting groove.
As a kind of improvement of the present utility model, two hypotenuses of the air magnetic barrier are provided with rib with permanent magnet mounting groove
Bar, the presence of rib can effectively improve rotor structure rigidity while avoiding the slip of permanent magnet.
As a kind of improvement of the present utility model, the rotor core is that silicon steel punching is overrided to form or castable.
As a kind of improvement of the present utility model, multiple stator slots are uniformly distributed on the stator core, stator slot
Quantity is generally 3 multiple；Stator winding is equipped with each stator slot, stator winding is that enamel-covered wire coiling is formed.
Relative to prior art, the utility model has the following advantages that, 1）The technical scheme global design is ingenious, structure is tight
Gather；2）The technical scheme does not have dependence to rare earth material, but still remains the superior function of permagnetic synchronous motor；With showing
Some permanent magnet reluctance motors are compared,qAxle shallow/deep groove type air magnetic hinders the convex grey subset for increasing motor, improves motor load function,
The demagnetization effects of Stator energization current are reduced simultaneously, especially effect becomes apparent from motor heavy service, in addition, deep trouth is deposited
Coordinate the radiator fan of motor end further to reduce internal rotor temperature, reduce the possibility of high temperature demagnetization.Institute
The permanent magnet position distribution of proposition and it can improve the efficiency of motor All Speed Range with the respective outer side edges of wind-tunnel；3）The technical scheme
Cost is relatively low, is easy to large-scale popularization and application.
Brief description of the drawings
Fig. 1 is anti-salient pole permanent magnet reluctance motor structure chart of the present utility model；
Fig. 2 is the rotor structure figure of anti-salient pole permanent magnet reluctance motor of the present utility model；
Fig. 3 is the power-angle curve of anti-salient pole permanent magnet reluctance motor of the present utility model；
Fig. 4 is the permanent magnet temperature time curve of anti-salient pole permanent magnet reluctance motor of the present utility model；
Fig. 5 is the power distribution collection of illustrative plates of anti-salient pole permanent magnet reluctance motor of the present utility model；
In figure：1- stator cores；2- stator slots；3- stator winding；Air-gap between 4- rotors；5- rotor cores；6-
Permanent magnet mounting groove；7- ferrite permanent magnets；8- air magnetic hinders；9- rotating shafts；10- ribs.
Embodiment：
In order to deepen to understand of the present utility model, the present embodiment is described in detail below in conjunction with the accompanying drawings.
Embodiment 1：Referring to Fig. 1, a kind of anti-salient pole permanent magnet reluctance motor, the anti-salient pole permanent magnet reluctance motor is included by interior
Outwards include rotating shaft 9, rotor core 5, ferrite permanent magnet 7, stator winding 3, stator core 1 and outer casing base, institute successively
State rotor core and rotating shaft is passed through in the form of punching is laminated, permanent magnet mounting groove 6, permanent magnet peace are uniform-distribution with rotor core
The quantity of tankage 6 is even number set, and mounting groove is set to trapezoidal, bottom not back cover, the need for difference, this mounting groove
Can for 2,4,6 or 8；Permanent magnet trough is symmetrical on the straight axis d shown in figure, and the permanent magnet 7 by material of ferrite is installed
In permanent magnet trough, it is bonded with non-magnet materials such as resins therebetween, described ferrite permanent magnet resin etc. is bonded at permanent magnetism
Even number of poles is formed in body mounting groove, stator winding is that enamel insulated wire is made and is uniformly embedded into stator slot, described fixed
Sub- iron core is fixed on motor housing, and air gap 4 is provided between the stator core and rotor core；Wherein permanent magnet mounting groove
Even number of poles in 6, the isosceles trapezoid per pole permanent magnet into lower open-ended is arranged, and has the wind-tunnel of isosceles trapezoid between every pole
I.e. air magnetic hinders 8.
Embodiment 2：Referring to Fig. 1, as a kind of improvement of the present utility model, the wind-tunnel 8 of the isosceles trapezoid is symmetrical
On the quadrature axis axis q of rotor rotating coordinate system, isosceles trapezoid is upper bottom close to the side of rotating shaft, under being close to the side of stator
Bottom, and bottom and air gap not UNICOM.Such a design also ensure that the rigidity of structure of rotor on the basis of it ensure that ventilation.Remaining
Structure and advantage are identical with embodiment 1.
Embodiment 3：Referring to Fig. 1, as a kind of improvement of the present utility model, the height of the air magnetic barrier 8 is more than permanent magnetism
The width of body mounting groove 6, and air magnetic barrier 8 upper bottom without departing from permanent magnet mounting groove；Two hypotenuses of air magnetic barrier 8 with forever
Magnet mounting groove is provided with rib 10.Remaining structure and advantage are identical with embodiment 1.
Embodiment 4：Referring to Fig. 1, as it is of the present utility model it is a kind of improve, the rotor core is silicon steel punching is laminated
Into or castable, be uniformly distributed multiple stator slots 2 on the stator core, the quantity of stator slot is generally 3 multiple；
Stator winding 3 is equipped with each stator slot, stator winding is that enamel-covered wire coiling is formed.Remaining structure and advantage and embodiment 1
It is identical.
Operation principle：Referring to Fig. 1-Fig. 5, as shown in figure 1, due to there is air magnetic barrier in the anti-salient pole permanent magnet reluctance motor
8, so quadrature-axis reluctance is more than direct axis reluctance, i.e.,R q >R d , then quadrature axis inductance be less than d-axis inductance, i.e.,L q <L d , so motor salient pole
Rate ρ=L q /L d <1 shows as anti-salient-pole machine；Motor uses Ferrite Material simultaneously, and compared to rare earth material, its magnetic field intensity subtracts
Weak 60%；In terms of comprehensive, the motor is permanent magnet reluctance motor.
The electromagnetic torque T of the motor can be split as permanent-magnet torque component Tm and reluctance torque component Ta, its relation
Equation is：
In above formula,θRepresent motor generator rotor angle；T A For the amplitude of motor torque component；C T It is related to electric machine structure characteristic turn
Moment coefficient；x q Withx d Respectively quadrature axis and d-axis reactance, related to electric machine structure；The anti-salient pole permanent magnet reluctance motor inherently belongs to
Property isx q <x d 。
As shown in Fig. 2 conventional salient pole permanent magnet reluctance motor is more than quadrature-axis reluctance for direct axis reluctance, motor shows as just convex
Pole characteristic；Therefore when motor generator rotor angle is less than 90 °, reluctance torque is negative, and when generator rotor angle is more than 90 °, the larger electric current of d-axis can be produced
Raw demagnetization armature reacting field, and now there is maximum output torque in motor, so motor electromagnetic stability is relatively low during overload.
The anti-salient pole permanent magnet reluctance motor is because being provided with trapezoidal air magnetic barrier 8 in quadrature axis q position, so quadrature-axis reluctance
More than direct axis reluctance, so quadrature axis reactance is less than d-axis reactance.Accordingly, the maximum electromagnetism of the anti-salient pole permanent magnet reluctance motor turns
The corresponding motor generator rotor angle position of square is less than 90 °, as shown in Figure 3.And generator rotor angle be less than 90 ° when motor reluctance torque be on the occasion of, and
The armature reacting field direction of d-axis is in the same direction with magnetic field of permanent magnet simultaneously, and motor overload will not be caused degaussing problem occur, stable
Property is higher.
The wind-tunnel is more favorable for internal heat dissipating in motor operation course, especially carries the big work(of rotor radiator fan
Rate motor；In addition the presence of this wind-tunnel improves the magnetic resistance on rotor quadrature axis q, occurs the possibility of magnetic circuit saturation during motor operation
It is smaller, reduce the eddy-current loss of rotor.This two aspects factor significantly reduces the DIE Temperature of permanent magnet 7, its temperature characterisitic
As shown in Figure 4.
Permanent magnet trough in the utility model is shaped such that the air gap flux density ripple that permanent magnet 7 is produced in the process of running in groove
Shape sine degree is higher and fundamental wave accounting is bigger, and this characteristic can improve the efficiency of motor All Speed Range, and its efficiency collection of illustrative plates is as shown in Figure 5.
At least one in technical characteristic described in embodiment 2,3,4 with embodiment 1 can also be combined shape by the utility model
Cheng Xin embodiment.
It should be noted that above-described embodiment, not for limiting protection domain of the present utility model, in above-mentioned technical side
Made equivalents or replacement each fall within the utility model scope of the claimed protection on the basis of case.
Claims (8)
1. a kind of anti-salient pole permanent magnet reluctance motor, it is characterised in that the anti-salient pole permanent magnet reluctance motor include from inside to outside according to
It is secondary including rotating shaft, rotor core, ferrite permanent magnet, stator winding, stator core and outer casing base, the rotor core with
The form that punching is laminated is passed through in rotating shaft, rotor core and is uniform-distribution with permanent magnet mounting groove, and the ferrite permanent magnet is bonded at
Even number of poles is formed in permanent magnet mounting groove, stator winding is that enamel insulated wire is made and is uniformly embedded into stator slot, institute
Stator core is stated to be fixed on motor housing.
2. anti-salient pole permanent magnet reluctance motor according to claim 1, it is characterised in that the stator core and rotor core
Between be provided with air gap.
3. anti-salient pole permanent magnet reluctance motor according to claim 2, it is characterised in that the idol wherein in permanent magnet mounting groove
Several magnetic poles, the isosceles trapezoid per pole permanent magnet into lower open-ended is arranged, and has the wind-tunnel i.e. air of isosceles trapezoid between every pole
Magnetic hinders.
4. anti-salient pole permanent magnet reluctance motor according to claim 3, it is characterised in that the wind-tunnel of the isosceles trapezoid is symmetrical
It is distributed on the quadrature axis axis of rotor rotating coordinate system, isosceles trapezoid is upper bottom close to the side of rotating shaft, close to the side of stator
It is bottom, and bottom and air gap not UNICOM.
5. anti-salient pole permanent magnet reluctance motor according to claim 4, it is characterised in that the height of the air magnetic barrier is more than
The width of permanent magnet mounting groove, and air magnetic barrier 8 upper bottom without departing from permanent magnet mounting groove.
6. the anti-salient pole permanent magnet reluctance motor according to claim 4 or 5, it is characterised in that the two of the air magnetic barrier are oblique
Side is provided with rib with permanent magnet mounting groove.
7. anti-salient pole permanent magnet reluctance motor according to claim 1, it is characterised in that the rotor core is silicon steel punching
It is overrided to form or castable.
8. anti-salient pole permanent magnet reluctance motor according to claim 1, it is characterised in that be uniformly distributed on the stator core
Stator winding 3 is equipped with multiple stator slots, each stator slot, stator winding is that enamel-covered wire coiling is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720086302.4U CN206481197U (en) | 2017-01-23 | 2017-01-23 | Anti- salient pole permanent magnet reluctance motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720086302.4U CN206481197U (en) | 2017-01-23 | 2017-01-23 | Anti- salient pole permanent magnet reluctance motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206481197U true CN206481197U (en) | 2017-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720086302.4U Active CN206481197U (en) | 2017-01-23 | 2017-01-23 | Anti- salient pole permanent magnet reluctance motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN206481197U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787565A (en) * | 2017-01-23 | 2017-05-31 | 徐州中矿大传动与自动化有限公司 | Anti- salient pole permanent magnet reluctance motor |
| CN107508397A (en) * | 2017-09-13 | 2017-12-22 | 江苏大学 | A kind of Over Electric Motor with PMSM new type rotor structure |
-
2017
- 2017-01-23 CN CN201720086302.4U patent/CN206481197U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787565A (en) * | 2017-01-23 | 2017-05-31 | 徐州中矿大传动与自动化有限公司 | Anti- salient pole permanent magnet reluctance motor |
| CN107508397A (en) * | 2017-09-13 | 2017-12-22 | 江苏大学 | A kind of Over Electric Motor with PMSM new type rotor structure |
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| CP03 | Change of name, title or address |
Address after: 221116 No. second Zhujianglu Road Industrial Park, Xuzhou high tech Zone, Jiangsu 7 Patentee after: Jiangsu Guochuan Electric Co.,Ltd. Country or region after: China Address before: 221116 No. second Zhujianglu Road Industrial Park, Xuzhou high tech Zone, Jiangsu 7 Patentee before: CHINA MINING DRIVES & AUTOMATION Co.,Ltd. Country or region before: China |