CN204538923U - A kind of rotor sectional type switched reluctance machines - Google Patents
A kind of rotor sectional type switched reluctance machines Download PDFInfo
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- CN204538923U CN204538923U CN201520272440.2U CN201520272440U CN204538923U CN 204538923 U CN204538923 U CN 204538923U CN 201520272440 U CN201520272440 U CN 201520272440U CN 204538923 U CN204538923 U CN 204538923U
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- reluctance machines
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Abstract
The utility model discloses a kind of rotor sectional type switched reluctance machines, comprise rotor portion and stationary part, rotor portion comprises and laminates iron core, non-magnet material framework and rotating shaft, wherein, laminate iron core and adopt unsymmetric structure, be inlaid in non-magnet material framework; Rotating shaft, non-magnet material framework and laminate iron core combine formed " cylindrical " non-salient-pole structure, stationary part comprises the fraction block structure of several separate removable, the structure of each fraction block structure is identical, include an E type stator core, E type stator core is overrided to form by E type permeability magnetic material, the middle magnetic tooth of E type stator core is wound with excitation winding, is provided with stator NULL between fraction block structure and isolates.This device magnetic flux path is short, and the magnetic flux path that each coil windings is formed is separate, not overlapping.Motor stator is detachable, easy to assembly.
Description
Technical field
The utility model relates to a kind of rotor sectional type switched reluctance machines.
Background technology
Switched reluctance machines follows the principle that magnetic flux always will close along the path that magnetic conductance is maximum, is produced the electromagnetic torque with magnetic resistance character by magnetic pull effect.Switched reluctance machines structure is simple, firm.Stator coil setting-in is easy, and end is firm, and hear rate major part, at stator, is easy to cooling; Rotor is without permanent magnet, and can have higher maximum rated temperature-rise, rotor does not have winding, and cost is low, motor can high-speed rotary then can not cause distortion, the moment of inertia of rotor is little, is easy to acceleration, deceleration degree; Switched reluctance machines torque direction and phase current orientation independent, as long as the conducting controlling main switching device turns off angle, just can change the operating state of motor; Winding current is by fly-wheel diode afterflow, and feedback electric energy is to power supply, has palingenesis; Switched reluctance machines all has high output and high efficiency in the rotating speed and power bracket of broadness, is applicable to very much high-speed cruising and in rugged environment.
Ordinary tap reluctance motor stator winding has whole apart from winding or concentratred winding, and rotor adopts tooth electrode structure.The motor internal flux circuit of this kind of structure is long, and the path of the flux circuit of each winding is overlapped, and causing affects greatly motor magnetic circuit when stator or the fracture of rotor certain, and fault-tolerant ability is poor; During high speed, due to rotor tooth electrode structure, cause the windage of rotor large, the loss of electric machine increases.For United States Patent (USP): U.S.Pat.No.5,111,096. its rotor adopts fraction block structure, decreases windage, but stator adopts whole apart from winding, and end copper loss increases, and the magnetic flux that different winding produces has the path of coincidence in motor, causes motor fault-tolerant ability.For Chinese patent CN 101710775 A.Which employs rotor piecemeal is structure, but stator have employed permanent magnet, adds click cost, and its structure is at least three phase electric machine, can not make two-phase induction motor, and controller cost can not reduce, and stator winding adopts whole apart from winding, and end copper consumption is large.
Utility model content
The utility model is in order to solve the problem, propose a kind of rotor sectional type switched reluctance machines, the magnetic flux path that this device can realize the generation of each winding is separate, each divided stator block structure is separate, and the detachable function of stator can be realized, that maintenance of motor is succinctly easy to assembly, more can save than Conventional switched reluctance motor ferromagnetic material simultaneously, the loss of electric machine is less, motor winding magnetic circuit is shorter, and during high speed, rotor wind (oil) resistance is less, and efficiency is higher, reliability is higher, and fault-tolerant ability is stronger.
To achieve these goals, the utility model adopts following technical scheme:
A kind of rotor sectional type switched reluctance machines, comprises rotor portion and stationary part, and rotor portion comprises and laminates iron core, non-magnet material framework and rotating shaft, wherein, laminates iron core and adopts unsymmetric structure, be inlaid in non-magnet material framework; Rotating shaft, non-magnet material framework and laminate iron core combine formed " cylindrical " non-salient-pole structure, stationary part comprises the fraction block structure of several separate removable, the structure of each fraction block structure is identical, include an E type stator core, E type stator core is overrided to form by E type permeability magnetic material, the middle magnetic tooth of E type stator core is wound with excitation winding, is provided with stator NULL between fraction block structure and isolates.
Described stator NULL is non-magnet material, is connected with motor stator.
The number of described fraction block structure is N, and N is the even-multiple of number of motor phases M.
The described number laminating iron core is even number.
Described E type stator core comprises middle main magnetic tooth, each secondary magnetic tooth in main magnetic tooth both sides and connect the E type stator yoke of each magnetic tooth.
The described iron core that laminates is inlaid in rotor non-magnet material framework, and it is fixing in the rotor that non-magnet material framework makes to laminate iron core, and what ensure piecemeal laminates the mutually isolated independence of iron core simultaneously.
The described outside laminating iron core adopts stepped air gap structure, and for ensureing that rotor diameter is circular, non-magnet material framework is filled with the stepped air gap of rotor core.
During described excitation winding energising, produce magnetic field, the path in magnetic field forms closed-loop path by the secondary magnetic tooth-main magnetic tooth of this E type stator core yoke portion-E type stator core of E type stator core main magnetic tooth-air gap-rotor core-air gap-E type stator core.
The width of described main magnetic tooth equal two secondary magnetic facewidth degree and, two secondary magnetic teeth are not wide.
The width of described main magnetic tooth equal two secondary magnetic facewidth degree and, two secondary magnetic teeth are wide.
Described laminating in the middle of iron core is provided with T-shaped projection, and non-magnet material framework is provided with T-shaped groove corresponding thereto.
The beneficial effects of the utility model are:
(1) motor stator adopts the E type structure of sectional type, and rotor adopts the structure of sectional type, saves the consumption of permeability magnetic material, reduce motor material cost, have employed non-magnet material in rotor simultaneously, the global density of motor can be reduced, under same volume, motor is lighter;
(2) stator is fraction block structure, and each winding coiling is simple and convenient;
(3) this motor adopts concentratred winding, and stator winding is in end without overlapping, and end copper consumption is less, and unfailing performance is higher;
(4) rotor adopts sectional type iron core laminated in non-magnet material, form " cylindrical " non-salient pole rotor structure, thus wind (oil) loss under greatly reducing high-speed cruising, the less non-magnet material of density can be adopted to reduce the moment of inertia of rotor, thus motor have good high-speed operation performance simultaneously;
(5) path of the magnetic conductive loop of each winding is independently, does not have overlapping, reduces motor internal fault to the impact of motor performance, improves motor reliability, fault-tolerant ability;
(6) the corresponding coil windings of each divided stator block structure, it is separate that each coil windings produces flux circuit institute path of walking in motor, realizes motor stator detachable, easy to assembly.
Accompanying drawing explanation
Fig. 1 is the overall structure figure of a kind of two-phase 4 pole switching reluctance motor of the present utility model;
Fig. 2 is the end view structural representation of a kind of two-phase 4 pole switching reluctance motor of the present utility model;
Fig. 3 is the stator core arrangement architecture principle schematic of a kind of two-phase 4 pole switching reluctance motor of the present utility model;
Fig. 4 is the stator core lamination schematic diagram of a kind of two-phase 4 pole switching reluctance motor of the present utility model;
Fig. 5 is the rotor tip view of a kind of two-phase 4 pole switching reluctance motor of the present utility model;
Fig. 6 is the rotor core laminations floor map of a kind of two-phase 4 pole switching reluctance motor of the present utility model;
Fig. 7 is the structural representation of the non-magnet material framework of the setting-in rotor core of a kind of two-phase 4 pole switching reluctance motor of the present utility model;
The magnetic line of force distribution schematic diagram of rotor under different position of rotation when Fig. 8 is a phase stator winding excitation of a kind of two-phase 4 pole switching reluctance motor of the present utility model;
The magnetic line of force distribution schematic diagram of rotor under different position of rotation when Fig. 9 is a phase stator winding excitation of a kind of two-phase 4 pole switching reluctance motor of the present utility model;
The magnetic line of force distribution schematic diagram of rotor under different position of rotation when Figure 10 is a phase stator winding excitation of a kind of two-phase 4 pole switching reluctance motor of the present utility model;
The magnetic line of force distribution schematic diagram of rotor under different position of rotation when Figure 11 is a phase stator winding excitation of a kind of two-phase 4 pole switching reluctance motor of the present utility model;
Figure 12 is the rotor principal character physical dimension sign picture of a kind of two-phase 4 pole switching reluctance motor of the present utility model;
Figure 13 is the static torque oscillogram of a kind of two-phase 4 pole switching reluctance motor of the present utility model;
Figure 14 is the Driving Torque oscillogram of a kind of two-phase 4 pole switching reluctance motor of the present utility model when rotating speed is 15000rpm.
Wherein, 1, bearing, 2, rotor core (magnetic conduction), 3, the non-magnetic structural framing of rotor, 4, excitation winding, 5, stator E shaped iron core (magnetic conduction), 6, stator NULL, 7, rotor stepped air gap structure, 8, the non-magnetic frame groove of fixed rotor iron core rotor, 9, the "T"-shaped groove of the non-magnetic framework of fixed rotor iron core rotor, 10, diameter of stator bore circular arc, 11, the ladder mistake of rotor ladder-type structure is high, 12, rotor core circular arc, 13, rotor diameter circular arc, 14, spindle outer diameter, Q, air gap between rotor, 2-1 ~ 2-2, rotor core, 4-1 ~ 4-4, coil windings, the main magnetic tooth of 5-1, iron core, 5-2 ~ 5-3, secondary magnetic tooth, 5-A ~ 5-B, motor phase, 6-1 ~ 6-4, NULL position, 8-1 ~ 8-4, non-magnet material interior grooves, 9-1 ~ 9-2, the "T"-shaped groove of non-magnetic framework, 11-1 ~ 11-5, rotor ladder mistake are high, 12-1 ~ 12-6, stepped air gap rotor arc, 15-1 ~ 15-2, projection.
Embodiment:
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
Rotor sectional type switched reluctance machines is a polyphase machine, this motor stator number of poles (the E shaped iron core number of motor end view) is even number, the best number of phases is 2, and the utility model is intended being described for the two-phase switched reluctance machines of stator 4 E shaped iron core structures, rotor 2 piecemeal conducting magnet core structures and 4-2 structure.Be two-phase stator E type structure, rotor sectional type switched reluctance machines as shown in Figure 1, 2.This motor stator is made up of E shaped iron core 5, coil windings 4-1 to 4-4 and NULL (being positioned at 6-1 to 6-4 pointed location); Fig. 1,2 is depicted as 4 pole rotor sectional type switched reluctance machines structure charts.Rotating shaft 1 is arranged on the center of rotor non-magnet material framework 3, and rotor core is inlaid in non-magnet material framework and forms cylindrical rotor, and its cylinder external diameter 13 i.e. rotor diameter is less than diameter of stator bore 10, thus forms air gap Q.Excitation winding 4-1,4-2,4-3,4-4 are wound on the main magnetic tooth of corresponding E shaped iron core respectively, wherein excitation winding 4-1,4-3 are a phase, excitation winding 4-2,4-4 one form two phase windings mutually, and when motor runs, two-phase alternate conduction provides electric energy for motor runs.Fig. 8-Figure 11 shows that the magnetic figure that an excitation winding energising produces.During excitation winding energising, produce magnetic field, the path in magnetic field forms closed-loop path by the secondary magnetic tooth-main magnetic tooth of this E shaped iron core stator yoke-E shaped iron core of E shaped iron core main magnetic tooth-air gap-rotor core-air gap-E shaped iron core.Stator every pole magnetic flux path is relatively independent, and flow direction does not have the requirement in principle, the not requirement of the sense of current therefore in excitation winding, and the size of exciting current determines the size of motor output torque.The rotary speed direction of motor is moved towards to determine by the size of rotor airgap, and the direction of rotation of motor shown in Fig. 2 is counterclockwise.
By Fig. 3, the stator E shaped iron core structure chart that Figure 4 shows that the rotor sectional type two-phase switched reluctance machines of 4-2 structure, Fig. 7 is the end view of motor E shaped iron core part, and wherein 5-A is a phase of motor, and 5-B is another phase of motor, forms two-phase; Motor E shaped iron core is overrided to form by E type magnetic conduction lamination, between E shaped iron core, have NULL, overlaps in the end of motor stator internal diameter with motor E type stator tooth.Fig. 4 is the plan view of E type magnetic conduction lamination.In figure, 5-1 is the main magnetic tooth of iron core, two of an E shaped iron core secondary magnetic teeth when 5-2,5-3, the width of main magnetic tooth equal two secondary magnetic facewidth degree and, two secondary magnetic teeth can not be wide.
By Fig. 5, Fig. 6, the rotor portion that Figure 7 shows that the rotor sectional type two-phase switched reluctance machines of 4-2 structure, rotor comprises permeable section and rotor core 2 and non-magnetic part and non-magnet material framework 3 and rotating shaft.Rotor core has magnetic conduction lamination to be overrided to form, Figure 6 shows that rotor magnetic conduction lamination plan view, the lamination of illustrated 15-1,15-2 is protruding and be that fixed rotor iron core designs to "T"-shaped structure, for ensureing that motor torque exports and motor self-starting function, diagram rotor core adopts ladder breath structure, breath structure can be similar to traditional two-phase switched reluctance machines, and 12-1 to 12-6 shown in Fig. 6 is stepped air gap rotor arc, and 11-1 to 11-5 is that rotor ladder mistake is high.Rotor conducting magnet core is inlaid in rotor non-magnet material framework 3, non-magnet material framework makes rotor conducting magnet core fixing in the rotor, the mutually isolated independence of rotor core of piecemeal simultaneously, non-magnet material with the less non-magnet_conductible material of density, thus can reduce weight and the moment of inertia of rotor.Fig. 7 is rotor non-magnet material frame ends view, and for ensureing that rotor diameter is circular, non-magnet material 7 is filled with the stepped air gap of rotor core.The bossing 15 (15-1,15-2) of non-magnet material interior grooves 8 (8-1,8-2,8-3,8-4) difference respective rotor iron core, equally, the "T"-shaped projection of the "T"-shaped groove respective rotor iron core of non-magnet material, these parts are fully identical, fixed rotor iron core, strengthens rotor mechanical structure.
The rotor sectional type two-phase switched reluctance machines of 4-2 structure is depicted as in excitation situation, its interior flux path profile by Fig. 8-11.Fig. 8-10 be depicted as motor operate in one phase energising time, rotor is in the magnetic flux situation of diverse location.Fig. 8 is the position of this rotor when starting mutually to be energized, due to coil windings energising, magnetic pull is produced to rotor and makes motor output torque, Fig. 9 is the motor magnetic circuit figure of rotor when this phase is still energized when rotating to an angle, now rotor continues Driving Torque, Figure 10 shows that the magnetic circuit figure of rotor-position when this phase closes to an end conducting period, the rotor-position at the end of the conduction of this phase the best is determined by loading condition, rotating speed size and size of current.Figure 11 shows that the magnetic line of force path profile that an excitation winding (an E shaped iron core structure) produces.When motor runs, commutation conducting, under not homophase.Motor magnetic flux path is similar, and the magnetic circuit of each winding is relatively independent, does not interfere with each other, and when an E shaped iron core damages, does not affect the normal work of other windings, improves the reliability stability of motor.In Fig. 8-11, closed curve is the magnetic line of force, and the density of the magnetic line of force embodies the size of magnetic flux density, and the magnetic line of force is closeer, and magnetic flux density is larger.
Be the major electromagnetic physical dimension sign picture of the rotor of the rotor sectional type two-phase switched reluctance machines of 4-2 structure as shown in Figure 12, X, Y, Z, N, W, V, d are labeled with to stator; A, B, C, D, E, F, H are labeled with to rotor.Wherein the unit of X, Y, Z, N, W, V, A, B, C, D, E, F, H is mechanical angle, and the unit of d is mm.D is the gap of placing NULL, d >=2mm, N=X+W, X >=W, Z >=Y, wherein X+Z+N+Y+W+V=90 °.Rotor is had: H=A+B+C+D+E+F; 90 °≤H < 180 °.F≤Z+X during employing stepped air gap; F≤E≤D≤C≤B≤A.
Torque output waveform figure when the rotor sectional type two-phase switched reluctance machines being depicted as 4-2 structure by Figure 13,14 analyzes the motor static torque oscillogram and motor that draw at 15000rpm under professional motor finite element analysis simulation software Maxwell16.The emulation parameter of electric machine is: stator outer diameter 96mm, and diameter of stator bore is the main magnetic facewidth 12mm of 53.6mm, and secondary magnetic tooth is wide is 6mm, E shaped iron core every magnetic distance d=4mm, rotor H=120 °, F=12 °, B=C=D=E=14 °, A=52 °, the wrong high 0.25mm of stepped air gap.Iron core folds long 45mm, umber of turn 110 circle.Static torque is a phase winding energising, and rotor, in the motor electromagnetic torque of diverse location, is being just Driving Torque, is bearing as brake torque.Figure 13 be two phase windings respectively logical 8A electric current time motor static torque figure, as can be seen from the figure, Driving Torque scope comparatively this phase brake torque wide ranges of an independent phase, any position of rotor is contained in the Static output torque of two phase windings, illustrate by controlling electrical power winding, motor can be made to be in torque output state and motoring condition all the time, feasibility of the present utility model and the excellent starting performance of motor are described.Figure 14 is that the torque when 15000rpm of this motor exports situation.As can be seen from Fig., motor can normally run when 15000rpm, and motor exports electromagnetic torque mean value and is about 0.8NM.Embody the outstanding high-speed cruising ability of this utility model motor.
By reference to the accompanying drawings embodiment of the present utility model is described although above-mentioned; but the restriction not to the utility model protection range; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection range of the present utility model.
Claims (10)
1. a rotor sectional type switched reluctance machines, is characterized in that: comprise rotor portion and stationary part, and rotor portion comprises and laminates iron core, non-magnet material framework and rotating shaft, wherein, laminates iron core and adopts unsymmetric structure, be inlaid in non-magnet material framework; Rotating shaft, non-magnet material framework and laminate iron core combine formed " cylindrical " non-salient-pole structure, stationary part comprises the fraction block structure of several separate removable, the structure of each fraction block structure is identical, include an E type stator core, E type stator core is overrided to form by E type permeability magnetic material, the middle magnetic tooth of E type stator core is wound with excitation winding, is provided with stator NULL between fraction block structure and isolates.
2. a kind of rotor sectional type switched reluctance machines as claimed in claim 1, is characterized in that: described stator NULL is non-magnet material, is connected with motor stator.
3. a kind of rotor sectional type switched reluctance machines as claimed in claim 1, is characterized in that: the number of described fraction block structure is N, and N is the even-multiple of number of motor phases M.
4. a kind of rotor sectional type switched reluctance machines as claimed in claim 1, is characterized in that: described E type stator core comprises middle main magnetic tooth, each secondary magnetic tooth in main magnetic tooth both sides and connect the E type stator yoke of each magnetic tooth.
5. a kind of rotor sectional type switched reluctance machines as claimed in claim 1, it is characterized in that: described in laminate iron core and be inlaid in rotor non-magnet material framework, it is fixing in the rotor that non-magnet material framework makes to laminate iron core, and what ensure piecemeal laminates the mutually isolated independence of iron core simultaneously.
6. a kind of rotor sectional type switched reluctance machines as claimed in claim 1, is characterized in that: described in laminate iron core outside adopt stepped air gap structure, for ensureing that rotor diameter be circle, non-magnet material framework is filled with the stepped air gap of rotor core.
7. a kind of rotor sectional type switched reluctance machines as claimed in claim 1, it is characterized in that: during described excitation winding energising, produce magnetic field, the path in magnetic field forms closed-loop path by the secondary magnetic tooth-main magnetic tooth of this E type stator core yoke portion-E type stator core of E type stator core main magnetic tooth-air gap-rotor core-air gap-E type stator core, and the path that the magnetic flux of each winding and generation thereof is walked is separate.
8. a kind of rotor sectional type switched reluctance machines as claimed in claim 4, is characterized in that: the width of described main magnetic tooth equal two secondary magnetic facewidth degree and, two secondary magnetic teeth are not wide.
9. a kind of rotor sectional type switched reluctance machines as claimed in claim 4, is characterized in that: the width of described main magnetic tooth equal two secondary magnetic facewidth degree and, two secondary magnetic teeth are wide.
10. a kind of rotor sectional type switched reluctance machines as claimed in claim 1, is characterized in that: described in laminate in the middle of iron core and be provided with T-shaped projection, non-magnet material framework is provided with T-shaped groove corresponding thereto.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520272440.2U CN204538923U (en) | 2015-04-29 | 2015-04-29 | A kind of rotor sectional type switched reluctance machines |
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| CN201520272440.2U CN204538923U (en) | 2015-04-29 | 2015-04-29 | A kind of rotor sectional type switched reluctance machines |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104795953A (en) * | 2015-04-29 | 2015-07-22 | 山东大学 | Switch reluctance machine with stator separated from rotor |
| CN105656226A (en) * | 2016-02-29 | 2016-06-08 | 锦州汉拿电机有限公司 | Single-phase brushless claw pole motor stator |
| CN107026521A (en) * | 2016-02-01 | 2017-08-08 | 迅昌科技股份有限公司 | Power generation device with double-coil bridging and synchronous excitation |
| WO2020086009A1 (en) * | 2018-10-25 | 2020-04-30 | Rotech Motor Teknoloji̇leri̇ San. Ve Ti̇c. A.Ş. | An alternating current synchronous motor and a control method |
-
2015
- 2015-04-29 CN CN201520272440.2U patent/CN204538923U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104795953A (en) * | 2015-04-29 | 2015-07-22 | 山东大学 | Switch reluctance machine with stator separated from rotor |
| CN107026521A (en) * | 2016-02-01 | 2017-08-08 | 迅昌科技股份有限公司 | Power generation device with double-coil bridging and synchronous excitation |
| CN105656226A (en) * | 2016-02-29 | 2016-06-08 | 锦州汉拿电机有限公司 | Single-phase brushless claw pole motor stator |
| CN105656226B (en) * | 2016-02-29 | 2018-02-09 | 锦州汉拿电机有限公司 | Brushless single phase claw-pole motor stator |
| WO2020086009A1 (en) * | 2018-10-25 | 2020-04-30 | Rotech Motor Teknoloji̇leri̇ San. Ve Ti̇c. A.Ş. | An alternating current synchronous motor and a control method |
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| 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: 20150805 Termination date: 20170429 |