CN110034616A - A kind of magneto-electric coupled damping noise reduction switched reluctance machines structure - Google Patents
A kind of magneto-electric coupled damping noise reduction switched reluctance machines structure Download PDFInfo
- Publication number
- CN110034616A CN110034616A CN201910321533.2A CN201910321533A CN110034616A CN 110034616 A CN110034616 A CN 110034616A CN 201910321533 A CN201910321533 A CN 201910321533A CN 110034616 A CN110034616 A CN 110034616A
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- China
- Prior art keywords
- stator
- rotor
- permanent magnet
- magnetic barrier
- tooth
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/17—Stator cores with permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/24—Rotor cores with salient poles ; Variable reluctance rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
- H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
- H02P25/08—Reluctance motors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Synchronous Machinery (AREA)
Abstract
The present invention relates to a kind of stator-rotor structure of switched reluctance motor, it include: stator core, permanent magnet in stator slot, stator winding, rotor tooth magnetic barrier, rotor yoke magnetic barrier, rotor core, stator pole shoes and arc groove, permanent magnet is along the circumferential direction uniformly placed in each stator slot, and permanent magnet is bonded with stator core yoke portion, permanent magnet with a thickness of 1/8th or so of stator groove depth, arc groove is opened in stator tooth two sides, and increase pole shoe in stator tooth top two sides, arc groove is connected with stator pole shoes, stator tooth will exceed the width of rotor tooth plus the width of stator pole shoes, rotor teeth portion opens rectangle magnetic barrier, rotor yoke open arc shape magnetic barrier, the number of arc magnetic barrier is identical as number of rotor teeth, and the thickness of magnetic barrier is no more than the one third of rotor yoke thickness, design structure of the invention is simple, manufacturing cost is low, but it can be effectively Increase torque, reduce torque pulsation, improve electric efficiency and reduce the vibration noise of motor.
Description
Technical field
The present invention relates to motor field, it is mainly used for improving switched reluctance machines torque pulsation, reduces vibration noise, be related to
A kind of magneto-electric coupled damping noise reduction switched reluctance machines structure.
Background technique
Switched reluctance machines because have the advantages that structure simple rigid, the at low cost, range of speeds it is wide receive it is extensive
Concern, has wide application in fields such as aircraft industry, household electrical appliance, is rapidly developed in recent years, but due to it
The nonlinearity of itself double-salient-pole structure and winding current, brings the drawback that torque pulsation is big, vibration noise is big, limits
Its numerous areas application, and vibration noise be as caused by torque pulsation, if the problem of torque pulsation, is solved,
It can exert far reaching influence to traditional motor speed regulation system, so that many scholars are devoted to the vibration of research switched reluctance machines
Noise problem.
Summary of the invention
The purpose of the present invention is to solve above-mentioned technical problems, and then provide a kind of magneto-electric coupled damping noise reduction switch
Reluctance motor structure, structure is simple, and practicability is high, asks to improve switched reluctance machines torque pulsation and vibration noise
Topic, is intercoupled by the magnetic circuit and energized phase electrical excitation of permanent magnet to increase the density of magnetic flux, and turn surely with the motor of optimization
Mode that minor structure combines reduces torque pulsation.
Technical solution of the present invention:
A kind of magneto-electric coupled damping noise reduction switched reluctance machines structure, comprising: permanent magnet in stator core, stator slot,
Stator winding, rotor tooth magnetic barrier, rotor yoke magnetic barrier, rotor core, stator pole shoes and arc groove.
Permanent magnet material is ferriferous oxide in the stator slot, to substitute rare rare earth resources, wherein in stator slot
Permanent magnet is circumferentially evenly distributed in each described stator slot, and permanent magnet is bonded with stator core yoke portion, permanent magnetism
Body section shape is consistent with stator groove profile, and pole shoe is added in two sides at the top of stator tooth, to change energization pole magnetic flux path and big
Small, stator tooth will exceed the width of rotor tooth plus the width of stator pole shoes, can make the better transition of magnetic flux, and under pole shoe
Arc groove is opened in the two sides of square stator tooth, and opening arc groove can be effectively reduced leakage magnetic flux.
The rotor core opens the uniform open arc shape magnetic barrier of rectangle magnetic barrier, rotor yoke, arc magnetic in each rotor teeth portion
The number of barrier is identical as number of rotor teeth, and the thickness that magnetic hinders thickness is no more than the one third in rotor core yoke portion.
Further, in order to optimize electric machine structure, permanent magnet is bonded with stator core yoke portion in the stator slot, when excitation around
When group no power, the permanent magnet magnetic line of force is not closed by air gap along stator pole body, stator yoke, when excitation winding is powered
When, the electrical excitation magnetic line of force and permanent magnet magnetic force thread path form parallel circuits, and two magnetic fields are overlapped mutually at rotor and air gap
Keep the output torque of motor bigger, to improve the efficiency of motor, stator tooth top two sides, which increase pole shoe, can be changed energization pole magnetic flux
Path and size increase polar arc to reduce magnetic circuit saturation, reduce torque pulsation and reduce vibration noise, stator tooth two sides open arc shape
Slot allows magnetic flux more smoothly to reach stator pole shoes, and can reduce leakage magnetic flux, weakens radial Reeb to reduce motor
Vibration, holding magnetic barrier in teeth portion and the yoke portion of rotor core can make teeth portion and yoke portion magnetic flux even closer, and in electrical excitation and forever
Magnet intercouples under conditions of the bigger magnetic flux of generation, and motor is allow to generate bigger average torque under same current,
And rotor tooth magnetic barrier changes the circulation path of magnetic flux with the group credit union of rotor yoke magnetic barrier, and the radial component of magnetic flux can be made to become
For tangential component, increase average torque to achieve the purpose that reduce torque pulsation.
Preferably, the position of permanent magnet is moved to stator core yoke portion in the stator slot, copper factor is reduced, is made
It is more easier when winding inserting, and its gain effect will not weaken, and the fixation of permanent magnet is also more convenient.
Preferably, the number of the uniform open arc shape magnetic barrier of the rotor yoke, becomes rotor from identical as number of rotor teeth
The multiple of the number of teeth, can make the more uniform of the magnetic flux distribution in yoke portion in this way, thus be more uniformly stressed yoke portion, can also be into
The reduction leakage magnetic flux of one step.
Preferably, the rotor tooth top two sides increase rotating pole-piece, thus it is possible to vary the magnetic of energization pole stator tooth part
Path and size increase polar arc to reduce magnetic circuit saturation, and be superimposed with rotating pole-piece advantage can be effective for stator pole shoes
Ground reduces torque pulsation.
The invention has the following advantages: firstly, the addition of permanent magnet so that the torque of motor is promoted with efficiency,
Secondly, increasing pole embrace and magnetic flux density by the change to electric machine rotor structure, reducing leakage magnetic flux and weaken radial
Reeb, thus reduce the vibration noise of motor and increase the output torque of motor, finally, this motor performance is superior, structure
Simply, high reliablity, manufacturing cost is low, is able to be widely applied and a large amount of production.
Detailed description of the invention
Fig. 1 is the electric machine rotor structural profile illustration of the invention.
Fig. 2 is two electric machine rotor structural profile illustration of the specific embodiment of the invention.
Fig. 3 is three electric machine rotor structural profile illustration of the specific embodiment of the invention.
Fig. 4 is four electric machine rotor structural profile illustration of the specific embodiment of the invention.
In figure: permanent magnet, 3- stator winding, 4- rotor tooth magnetic barrier, 5- rotor yoke magnetic in 1- stator core, 2- stator slot
Barrier, 6- rotor core, 7- stator pole shoes, 8- arc groove, 9- stator core yoke portion permanent magnet, the multiple magnetic barrier of 10-, 11- rotor pole
Boots.
Specific embodiment
Below with reference to attached drawing, the present invention is described in detail.
Specific embodiment 1: it is illustrated with reference to Fig. 1 the method, a kind of magneto-electric coupled damping noise reduction switched reluctance machines knot
Structure, comprising: permanent magnet 2, stator winding 3, rotor tooth magnetic barrier 4, rotor yoke magnetic hinder 5, rotor core in stator core 1, stator slot
6, stator pole shoes 7 and arc groove 8.
Stator structure is made of permanent magnet 2, stator winding 3, stator pole shoes 7 and arc groove 8 in stator core 1, stator slot,
The stator pole shoes 7 add stator pole shoes 7 in stator tooth top two sides, and stator tooth top two sides, which increase pole shoe, can be changed energization pole magnetic flux
Path and size increase polar arc to reduce magnetic circuit saturation to reduce torque pulsation, and the arc groove 8 is in each stator tooth two
Arc groove 8 is opened in side, and the optimization of general motor can hold rectangular channel in stator tooth two sides, and the magnetic line of force can in this way produced in rectangle right angle
The phenomenon that raw leakage magnetic flux and part saturation, arc groove 8 can not only weaken radial Reeb, can also reduce leakage magnetic flux and part is full
And the phenomenon that, achieve the purpose that reduce vibration noise, and stator pole shoes 7 are connected with arc groove 8, more magnetic fluxs can be made logical
Stator pole shoes are crossed, for the rotor tooth magnetic barrier 4 to open rectangular channel in each teeth portion of rotor core 6, the purpose of rotor tooth magnetic barrier 4 is to change
Unsteady flow passes through the path of rotor Tooth flux, and the magnetic flux more crypto set of teeth portion can also be made to increase torque, the rotor yoke magnetic
Barrier 5 is opens arc groove in 6 yoke portion of rotor core, and the quantity of rotor yoke magnetic barrier 5 is identical as number of rotor teeth, and most thick degree is not
More than the one third in 6 yoke portion of rotor core, rotor yoke magnetic barrier 5 can be such that the magnetic flux density of rotor yoke increases and alleviate to turn
The weight of son, to increase the torque of motor, the combination of rotor tooth magnetic barrier 4 and rotor yoke magnetic barrier 5 can significantly change magnetic
Path makes the radial component of magnetic flux become tangential component, increases average torque to achieve the purpose that reduce torque pulsation.
2 material of permanent magnet is ferriferous oxide in the stator slot, to substitute rare rare earth resources, wherein in stator slot
Permanent magnet 2 is circumferentially evenly distributed in each described stator slot, and permanent magnet 2 and 1 yoke of stator core in stator slot
Portion's fitting, when excitation winding no power, 2 magnetic line of force of permanent magnet is not by air gap along stator pole body, stator in stator slot
Yoke portion closure, when excitation winding is powered, the electrical excitation magnetic line of force forms magnetic in parallel with 2 magnetic line of force path of permanent magnet in stator slot
Road, two magnetic fields are overlapped mutually at rotor and air gap keeps the output torque of motor bigger, that is to say, that under identical torque
Required electric current is smaller, to improve the efficiency of motor.
Specific embodiment 2: be illustrated in combination with fig. 2 the method, the method and specific embodiment one the difference is that
The position of permanent magnet can reduce copper factor in stator yoke, stator core yoke portion permanent magnet 9, make more to hold when winding inserting
Easily, and its gain effect is identical as body embodiment one, and the fixation of permanent magnet is also more convenient.
Specific embodiment 3: illustrate the method in conjunction with Fig. 3, the method and specific embodiment one the difference is that
The magnetic barrier of rotor yoke becomes multiple magnetic barrier 10, and multiple magnetic barrier 10 can make the more uniform of the magnetic flux distribution in yoke portion, thus make
Yoke portion is more uniformly stressed, and can also further reduce leakage magnetic flux other than it can increase magnetic flux tangential component.
Specific embodiment 4: illustrate the method in conjunction with Fig. 4, the method and specific embodiment one the difference is that
Rotating pole-piece 11 is added in rotor tooth top two sides, and rotating pole-piece 11 can change the magnetic flux path of energization pole stator tooth part and big
It is small, increase polar arc to reduce magnetic circuit saturation, is overlapped mutually with the advantage of stator pole shoes, torque pulsation can be effectively reduced.
While the invention has been described with reference to certain embodiments, it will be appreciated by those of skill in the art that various changes can be formed
Change, and equivalent can substitute its element and be made without departing from the scope of the present invention.The present invention not only turns switched reluctance machines surely
Minor structure is innovated, and motor is made to weaken torque pulsation and noise, and further, the present invention is also carried out to magneto-electric coupled
Innovation improvement, by the coupling of permanent magnet and electrical excitation in stator slot, increases the efficiency of motor.
Claims (4)
1. a kind of magneto-electric coupled damping noise reduction switched reluctance machines structure, comprising: permanent magnet in stator core (1), stator slot
(2), stator winding (3), rotor tooth magnetic barrier (4), rotor yoke magnetic barrier (5), rotor core (6), stator pole shoes (7) and arc groove
(8), which is characterized in that permanent magnet (2) is along the circumferential direction distributed in each stator slot in the stator slot, and with stator iron
The fitting of the heart (1) yoke portion, the stator winding (3) are along the circumferential direction distributed in stator slot, and the rotor tooth magnetic barrier (4) is to turn
Sub- teeth portion opens rectangular channel, and the rotor yoke magnetic barrier (5) is to open arc groove, and the quantity of rotor yoke magnetic barrier (5) in rotor yoke
Identical as number of rotor teeth, most thick degree is no more than the one third in rotor core (6) yoke portion, and the stator pole shoes (7) are fixed
Stator pole shoes (7) are added in sub- tooth top two sides, and the arc groove (8) is opens arc groove (8) in each stator tooth two sides, and stator
Pole shoe (7) is connected with arc groove (8).
2. a kind of magneto-electric coupled damping noise reduction switched reluctance machines structure according to claim 1, which is characterized in that stator
The position of permanent magnet (2) is placed in stator core (1) in slot, i.e. stator core yoke portion permanent magnet (9), such stator core
Not only its advantage is identical as claim 1 for yoke portion permanent magnet (9), winding inserting can also be made more convenient, in stator core
In it is more convenient to the fixation of permanent magnet.
3. a kind of magneto-electric coupled damping noise reduction switched reluctance machines structure according to claim 1, which is characterized in that rotor
Yoke portion opens multiple magnetic barrier (10), and multiple magnetic barrier (10) can also make yoke portion magnetic flux density even closer, but also can make magnetic flux
It is more uniform to be distributed the more uniform stress for making motor.
4. a kind of magneto-electric coupled damping noise reduction switched reluctance machines structure according to claim 1, which is characterized in that rotor
Rotating pole-piece (11) are added in tooth tip two sides, and the magnetic flux path of energization pole stator tooth part and big also can be changed in rotating pole-piece (11)
It is small, increase polar arc to reduce magnetic circuit saturation, to achieve the purpose that reduce torque pulsation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910321533.2A CN110034616A (en) | 2019-04-19 | 2019-04-19 | A kind of magneto-electric coupled damping noise reduction switched reluctance machines structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910321533.2A CN110034616A (en) | 2019-04-19 | 2019-04-19 | A kind of magneto-electric coupled damping noise reduction switched reluctance machines structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110034616A true CN110034616A (en) | 2019-07-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910321533.2A Pending CN110034616A (en) | 2019-04-19 | 2019-04-19 | A kind of magneto-electric coupled damping noise reduction switched reluctance machines structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112448491A (en) * | 2020-11-03 | 2021-03-05 | 珠海格力节能环保制冷技术研究中心有限公司 | Stator core, stator structure, motor, compressor and electric appliance with same |
| CN116742845A (en) * | 2023-05-16 | 2023-09-12 | 石河子大学 | Stator and rotor structure for reducing vibration and noise and switched reluctance motor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08126273A (en) * | 1994-08-30 | 1996-05-17 | Honda Motor Co Ltd | Reluctance motor |
| CN1787332A (en) * | 2005-11-16 | 2006-06-14 | 哈尔滨工业大学 | Short magnetic circuit mixing exciting switch Magnet resistance motor |
| CN107112818A (en) * | 2014-11-20 | 2017-08-29 | 法雷奥电机控制系统公司 | For applied to motor in motor vehicles, with the stator with cavity |
| US20170366075A1 (en) * | 2016-06-20 | 2017-12-21 | Jtekt Corporation | Synchronous Reluctance Motor |
| CN207098899U (en) * | 2017-06-01 | 2018-03-13 | 三峡大学 | A kind of modified switched reluctance machines |
| CN109450209A (en) * | 2018-12-19 | 2019-03-08 | 上海特波电机有限公司 | Bread formula permanent-magnetic synchronous motor rotor |
-
2019
- 2019-04-19 CN CN201910321533.2A patent/CN110034616A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08126273A (en) * | 1994-08-30 | 1996-05-17 | Honda Motor Co Ltd | Reluctance motor |
| CN1787332A (en) * | 2005-11-16 | 2006-06-14 | 哈尔滨工业大学 | Short magnetic circuit mixing exciting switch Magnet resistance motor |
| CN107112818A (en) * | 2014-11-20 | 2017-08-29 | 法雷奥电机控制系统公司 | For applied to motor in motor vehicles, with the stator with cavity |
| US20170366075A1 (en) * | 2016-06-20 | 2017-12-21 | Jtekt Corporation | Synchronous Reluctance Motor |
| CN207098899U (en) * | 2017-06-01 | 2018-03-13 | 三峡大学 | A kind of modified switched reluctance machines |
| CN109450209A (en) * | 2018-12-19 | 2019-03-08 | 上海特波电机有限公司 | Bread formula permanent-magnetic synchronous motor rotor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112448491A (en) * | 2020-11-03 | 2021-03-05 | 珠海格力节能环保制冷技术研究中心有限公司 | Stator core, stator structure, motor, compressor and electric appliance with same |
| CN116742845A (en) * | 2023-05-16 | 2023-09-12 | 石河子大学 | Stator and rotor structure for reducing vibration and noise and switched reluctance motor |
| CN116742845B (en) * | 2023-05-16 | 2024-03-15 | 石河子大学 | Stator and rotor structure for reducing vibration and noise and switched reluctance motor |
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Application publication date: 20190719 |
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