CN107453572A - A kind of piecemeal outer rotor switched reluctance motor - Google Patents
A kind of piecemeal outer rotor switched reluctance motor Download PDFInfo
- Publication number
- CN107453572A CN107453572A CN201710770700.2A CN201710770700A CN107453572A CN 107453572 A CN107453572 A CN 107453572A CN 201710770700 A CN201710770700 A CN 201710770700A CN 107453572 A CN107453572 A CN 107453572A
- Authority
- CN
- China
- Prior art keywords
- rotor
- motor
- switched reluctance
- piecemeal
- magnetic flux
- Prior art date
- 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
- H02K19/00—Synchronous motors or generators
- H02K19/02—Synchronous motors
- H02K19/10—Synchronous motors for multi-phase current
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
Abstract
The present invention relates to a kind of piecemeal outer rotor switched reluctance motor, wherein rotor is piecemeal outer-rotor structure, it includes multiple independent rotor blocks and non-magnetizer, rotor block is fixed on non-magnetizer upper surface, and each independent rotor block and the field pole adjacent with it, interpole forms independent flux circuit, the rotor structure makes the electromagnetic isolation between each rotor and rotor, compared to long magnetic flux path, the motor of short magnetic flux path is easier to reduce magnetomotive force, due to using short magnetic flux path, in the stator and rotor, magnetic flux is without reverse, during motor rotates commutation, negative torque will not be produced, motor uses concentratred winding, the motor number of turn is reduced, under same input condition, copper wastage is small, core loss is small, output torque is big, the delivery efficiency of motor is high.
Description
Technical field
The invention belongs to reluctance motor technical field, more particularly to a kind of switched reluctance machines of piecemeal outer rotor.
Background technology
Switched reluctance machines are to have developed with power electronics, micro computer and developing rapidly for control theory the beginning of the eighties
A kind of new speed-adjusting driving system come.With outstanding advantages of simple in construction, reliable, cost is low, efficiency high, at present
As Speed Adjustment of AC Motor, DC motor speed drive system, Speed Regulation Systems of BLDCM strong competitor.But by
It is big in switched reluctance machines torque pulsation and noise, the shortcomings such as output torque is low.Pass through intelligent control and the structure of optimization motor
Size can effectively reduce the noise of motor, in addition, more improve torque and the efficiency of motor.With other motors one
Sample, switched reluctance machines also observe electromechanical energy law of conservation, and the magnetic circuit system of motor converts performance to the energy of motor and focused on
Big effect.The energy loss of motor is advantageously reduced using a good magnetic material and reduction magnetic flux path, improves efficiency.
The switched reluctance machines magnetic flux path of traditional structure is longer, and rotor is salient-pole structure internal rotor, and turns in motor
Magnetic flux reverse can occur during moving phase, cause the output torque of motor to reduce, iron loss increase, wind moussing loss increase, Yi Jixiao
Rate reduction etc..Traditional block stator switched reluctance machines, its switching loss is big, and rotor is by out-of-balance force；And traditional piecemeal
Rotor switched reluctance motor, its winding use Distributed Winding, cause electric motor winding end to increase, copper loss increase.Therefore, in motor
In the design process of structure, how to increase the output torque of motor, reduce loss, improve delivery efficiency turn into design of electrical motor compared with
Big obstacle.
The content of the invention
To solve the above problems, the present invention proposes a kind of piecemeal outer rotor switched reluctance motor, its simple in construction, design is closed
Manage, be easily installed and implement.
The technical solution adopted in the present invention is：A kind of switched reluctance machines of piecemeal outer rotor, including housing, stator and
Rotor, it is characterized in that：Field pole and interpole are alternately provided with described stator, the width of field pole is interpole
2 times of width, diametrically two field poles for being wound with magnet exciting coil respectively constitute A phase windings, B phases in series
Winding and C phase windings；
Described rotor is outer-rotor structure, and it includes multiple independent rotor blocks and non-magnetizer, and each rotor block is fixed on non-
Magnetic conductor upper surface, and each independent rotor block and the field pole adjacent with it, interpole form independent flux circuit.
The section of described non-magnetizer is circle.
Described non-magnetizer material is aluminium.
Described conductor be only wrapped in stator excitation extremely on.
Described rotor is 8 pole external-rotors.
Described stator is the pole of 3 phase 12.
Advantages of the present invention and beneficial effect are：The piecemeal outer rotor switched reluctance motor, stator is the pole of 3 phase 12, and is turned
Son is 8 pole external-rotor structures, and it includes multiple independent rotor blocks and non-magnetizer, and rotor block is fixed on non-magnetizer upper table
Face, and each independent rotor block and the field pole adjacent with it, interpole form independent flux circuit, the rotor structure be by
The rotor block of series of discrete is embedded in the non-magnetizer surface of aluminum, makes the electromagnetic isolation between each rotor and rotor, makes
For rotor under any position, the magnetic flux path of motor is all most short.Compared to long magnetic flux path, the motor of short magnetic flux path is more
It is easy to reduce magnetomotive force.The rotor of motor is not salient-pole structure, but circular configuration, and compared to same size Conventional switched reluctance
The rotor of motor, the radius of its outer-rotor structure is bigger, and rotary inertia is big, good heat dissipation, advantageously reduces wind moussing loss, has defeated
It is big to go out torque, the advantages of electromagnetism utilization rate is high, and core loss is small.Due to using short magnetic flux path, in the stator and rotor, magnetic flux
Without reverse, during motor rotates commutation, there is the advantages of will not producing negative torque.Motor uses concentratred winding, motor circle
Number is reduced, and under same input condition, copper wastage is small, core loss is small, output torque is big, so the delivery efficiency of motor is high.
Brief description of the drawings
The invention will now be described in further detail with reference to the accompanying drawings.
Fig. 1 is the rotor and stator structure schematic diagram of piecemeal outer rotor switched reluctance motor of the embodiment of the present invention；
Fig. 2 is A phase winding flux path schematic diagrames of the embodiment of the present invention；
Fig. 3 is that the output torque contrast of switched reluctance machines of the present invention and Conventional switched reluctance motor in the embodiment of the present invention is illustrated
Figure；
Fig. 4 is that schematic diagram is lost in Conventional switched reluctance electric machine iron core；
Fig. 5 is invention switched reluctance machines core loss schematic diagram；
Number explanation is as follows in figure：1 stator, 1-1 interpoles, 1-2 field poles, 2 rotors, 2-1 rotor blocks, 2-2 non-magnetizers, 3
Motor shaft.
Embodiment
Below in conjunction with the accompanying drawings 1~4 and embodiment the present invention is elaborated, describe below only as demonstration and
Explain, any formal limitation is not made to the present invention.
The switched reluctance machines with piecemeal rotor of the present embodiment, as shown in figure 1, including housing, stator 1 and rotor 2,
Rotor 2 is fixed on casing, and motor shaft 3 is moved by casing rotor driven.Alternately be provided with stator 1 interpole 1-1 and
Field pole 1-2,12 altogether, interpole 1-1 width is the half of field pole 1-2 width, is wound with magnet exciting coil
Two field poles diametrically form a phase, i.e., the winding P on field pole 1-2 in seriesA1And PA2It is connected into A
Phase winding, PB1And PB2It is connected into B phase windings, PC1And PC2It is connected into C phase windings.
Rotor 2 includes 8 independent rotor block 2-1 and non-magnetizer 2-2, and rotor structure is outer rotor.Wherein, it is non-magnetic
Body 2-2 section is circle, is aluminum.
Each rotor block 2-1 can uniformly be fixed on non-magnetizer 2-2 upper surfaces, and each independent rotor block 2-1 and and it
Adjacent field pole, interpole form independent flux circuit, as shown in Figure 2.
By the difference of magnet exciting coil canoe, the magnetic line of force is set to be formed by field pole two interpoles adjacent with its
The short magnetic flux path of one closure（Short magnetic flux path mentioned here be compared with traditional energized circuit, using A phase windings as
Example, traditional energized circuit be since salient pole, flow into its diametrically second encourage salient pole after, return the first salient pole,
The excitation path that this mode is formed is longer with respect to for the present embodiment）.Conductor in each stator teeth groove only produces itself
Magnetomotive force, mutual inductance very little, can be ignored caused by the winding between groove and groove.Under this electric machine structure, motor
Magnetic flux path is very short, and the phenomenon reversed in the stator and rotor without generation magnetic flux, reduces the core loss of motor.
Piecemeal outer rotor switched reluctance motor is applied to automobile cooling fan device in the present embodiment, user also can basis
Need the switched reluctance machines being applied to other devices.Specifically set compared with traditional 12/8 switched reluctance machines such as the institute of table 1
Show：
12/8 SRM of tradition of table 1 and the present embodiment model machine design parameter
| Parameter | 12/8 SRM of tradition | Model machine of the present invention |
| The number of phases | 3 | ← |
| External diameter (mm) | 52.5 | ← |
| Stator yoke is wide (mm) | 5 | 31 |
| Rotor diameter (mm) | 31 | 52.5 |
| Air gap (mm) | 0.25 | ← |
| Rotor internal diameter (mm) | 24 | 45.5 |
| The diameter of axle (mm) | 4 | ← |
| Iron core is long (mm) | 35 | ← |
| Stator polar arc (°) | 14 | 26/10 |
| Rotor pole arc (°) | 16 | 39 |
| The one phase winding number of turn (N) | 20 | 16 |
Remarks：（1）12/8 SRM of tradition and the present embodiment switched reluctance machines are applied to same device, so the external diameter of motor
Consistent with the diameter of axle, the length unshakable in one's determination of motor is equal, and the volume of motor is identical；
（2）The line gauge of winding is the same, uses identical conductive winding；
（3）Meet the requirement of real material, magnetic flux density will be less than 1.8T；
（4）The copper factor of model machine will be equal to or less than the copper factor of traditional 12/8 switched reluctance machines.
The output torque phase of piecemeal of embodiment of the present invention outer rotor switched reluctance motor and traditional 12/8 switched reluctance machines
Than the size of two kinds of motors is identical with input parameter.As shown in figure 3, the average output torque of traditional 12/8 switched reluctance machines
It is 1.778N m, and the average output torque of model machine is 2.237N m, output torque improves 25.8%.
Although the foregoing describing the embodiment of the present invention, those skilled in the art in the art should manage
Solution, these are merely illustrative of, and can make various changes or modifications to these embodiments, without departing from the principle of the present invention
And essence.The scope of the present invention is only limited by the claims that follow.
Although the foregoing describing the embodiment of the present invention, those skilled in the art in the art should manage
Solution, these are merely illustrative of, and can make various changes or modifications to these embodiments, without departing from the principle of the present invention
And essence.The scope of the present invention is only limited by the claims that follow.
Claims (5)
1. a kind of piecemeal outer rotor switched reluctance motor, including housing, stator and rotor, it is characterised in that：It is alternate on stator
Field pole and interpole are provided with, the width of field pole is twice of interpole width, is wound with magnet exciting coil diametrically
Two field poles respectively constitute A phase windings, B phase windings and C phase windings in series；Rotor is outer-rotor structure, its
Including multiple independent rotor blocks and non-magnetizer, rotor block is fixed on non-magnetizer upper surface, and each independent rotor block and
The field pole adjacent with it, interpole form independent flux circuit.
2. the switched reluctance machines of piecemeal outer rotor according to claim 1, it is characterised in that：Described non-magnetizer
Section is circle.
3. the switched reluctance machines of piecemeal outer rotor according to claim 1 or 2, it is characterised in that：Conductor is wrapped in fixed
On sub- field pole, without conductor on interpole.
4. the switched reluctance machines of piecemeal outer rotor according to claim 1, it is characterised in that：Rotor is piecemeal outer rotor
Structure.
5. the switched reluctance machines of piecemeal outer rotor according to claim 4, it is characterised in that：Rotor is to turn outside eight pieces
Son, stator are the two level of three-phase ten.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710770700.2A CN107453572A (en) | 2017-08-31 | 2017-08-31 | A kind of piecemeal outer rotor switched reluctance motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710770700.2A CN107453572A (en) | 2017-08-31 | 2017-08-31 | A kind of piecemeal outer rotor switched reluctance motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107453572A true CN107453572A (en) | 2017-12-08 |
Family
ID=60493409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710770700.2A Withdrawn CN107453572A (en) | 2017-08-31 | 2017-08-31 | A kind of piecemeal outer rotor switched reluctance motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107453572A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111404342A (en) * | 2020-03-10 | 2020-07-10 | 东南大学 | Combined rotor modulator magnetic gear composite motor |
| CN111628582A (en) * | 2020-06-10 | 2020-09-04 | 沈阳日丰成控电气制造有限公司 | Motor structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5717269A (en) * | 1996-10-04 | 1998-02-10 | Emerson Electric Co. | Reluctance machine with auxiliary flux path |
| CN105099112A (en) * | 2015-08-24 | 2015-11-25 | 浙江亿利达风机股份有限公司 | Single-phase permanent magnet brushless direct-current motor with auxiliary teeth and auxiliary windings |
| CN105141098A (en) * | 2015-09-21 | 2015-12-09 | 华晨汽车集团控股有限公司 | Switched reluctance motor with segmental rotor |
| CN105375656A (en) * | 2015-11-27 | 2016-03-02 | 济南吉美乐电源技术有限公司 | Novel punching sheet structure block external rotor magnetic flux switching type doubly-salient motor |
-
2017
- 2017-08-31 CN CN201710770700.2A patent/CN107453572A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5717269A (en) * | 1996-10-04 | 1998-02-10 | Emerson Electric Co. | Reluctance machine with auxiliary flux path |
| CN105099112A (en) * | 2015-08-24 | 2015-11-25 | 浙江亿利达风机股份有限公司 | Single-phase permanent magnet brushless direct-current motor with auxiliary teeth and auxiliary windings |
| CN105141098A (en) * | 2015-09-21 | 2015-12-09 | 华晨汽车集团控股有限公司 | Switched reluctance motor with segmental rotor |
| CN105375656A (en) * | 2015-11-27 | 2016-03-02 | 济南吉美乐电源技术有限公司 | Novel punching sheet structure block external rotor magnetic flux switching type doubly-salient motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111404342A (en) * | 2020-03-10 | 2020-07-10 | 东南大学 | Combined rotor modulator magnetic gear composite motor |
| CN111628582A (en) * | 2020-06-10 | 2020-09-04 | 沈阳日丰成控电气制造有限公司 | Motor structure |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20171208 |