CN202997896U - Switch magnetic resistance motor in cast-aluminum rotor structure - Google Patents
Switch magnetic resistance motor in cast-aluminum rotor structure Download PDFInfo
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- CN202997896U CN202997896U CN 201220729901 CN201220729901U CN202997896U CN 202997896 U CN202997896 U CN 202997896U CN 201220729901 CN201220729901 CN 201220729901 CN 201220729901 U CN201220729901 U CN 201220729901U CN 202997896 U CN202997896 U CN 202997896U
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Abstract
The utility model relates to a switch magnetic resistance motor in a cast-aluminum rotor structure. The switch magnetic resistance motor includes a housing, a rotary shaft, a stator iron core, a stator winding, and a rotor iron core, wherein the rotary shaft passes through the housing and is rotatably connected with the housing; the stator iron core is fixedly arranged in the housing; the stator winding is an integral pitch winding and is arranged in a shaping groove of the stator iron core; the rotor iron core is fixedly arranged on the rotary shaft and is in the housing. The rotor iron core is aligned with the stator iron core, and a motor air gap is arranged between the stator iron core and the rotor iron core along the radial direction. The switch magnetic resistance motor in the cast-aluminum rotor structure improves the power output density, the effective material utilization rate and the power factor of the switch magnetic resistance motor, reduces the vibration, noise, weight, and cost of the switch magnetic resistance motor, and greatly improves the competitive edge of the switch magnetic resistance motor in the speed regulation field, and especially in the direct-driven wind power generation field, so the switch magnetic resistance motor can widely replace the prior switch magnetic resistance motor, and can be applied to the speed regulation and power generation fields, and especially the direct-driven wind power generation field.
Description
Technical field
The utility model relates to technical field of generators, particularly relates to a kind of switched reluctance machines of cast-aluminum rotor structure.
Background technology
Simple in structure, the advantages such as cost is low, reliable, control is flexible, superior performance that switched reluctance machines has, and have the unexistent advantage of AC/DC speed governing system by the governing system that it consists of, so the application prospect of switched reluctance machines is very wide.
Development along with Wind Power Generation Industry, wind power technology is also constantly being upgraded, is being regenerated, main manifestations is: the single-machine capacity, the development new technology that improve the wind-powered electricity generation unit are improved the wind-powered electricity generation unit performance, improve wind energy utilization, are reduced wind power cost, more pay attention to the control of the reliability of the fail safe of wind-powered electricity generation unit and system.Switch reluctance generator is applied to wind power system, is the another important breakthrough that switched reluctance machines is used at new energy field.
Switch reluctance generator, brushless on rotor, without winding, without permanent magnet.Be equivalent to a current source during its operation, in certain range of speeds, output end voltage can not change along with the variation of rotating speed, can improve the utilization ratio of switch reluctance generator wind energy.Owing to having top characteristic, switch reluctance generator can be realized higher generating efficiency under wind-force directly drives, thereby has saved gear box, makes whole power generation system structure more succinct, reliable, complies with the development trend of wind generator system.Switch reluctance generator because the generator controllable parameter is many, as turn-on angle, the pass angle of rupture etc., therefore can be realized the control strategy of more complicated easily in running, control flexibly output dc voltage and electric current.In the wind power generation process, at first wind generator system will be converted to the wind energy that constantly changes the alternating current of frequency, voltage constant or the direct current of voltage constant, and want the high efficiency conversion that realizes above-mentioned energy, to reduce costs, with this, the switching magnetic-resistance wind-driven generator is applied to the wind-powered electricity generation electricity generation system will be addressed these problems.
But during the operation of traditional switch reluctance motor, noise and larger, the non-linear of vibration are strong; Motor is the double-salient-pole structure, and its stator and rotor are overrided to form by the ordinary silicon steel disc; On rotor both without winding also without permanent magnet, stator tooth is wound with concentrated winding on extremely, therefore, also exist power of motor density low, the material effective rate of utilization is low, power factor is lower and motor weight is large and the high shortcoming of cost, has affected to a certain extent it in the particularly use popularization in direct-drive wind power generation field of speed governing field.
This shows, traditional switched reluctance machines is in structure and use, still there are obvious defective and deficiency, demand further improvement urgently, how to found a kind of novel switched reluctance machines, make it improve power density, effectively stock utilization, power factor, and weight, cost, the vibration and noise of reduction motor, make it be more suitable for being applied to the direct-drive wind power generation field, real one of the current important research and development field that belongs to.
The utility model content
The purpose of this utility model is to provide a kind of switched reluctance machines of cast-aluminum rotor structure, make utilance and the power factor of its power density that can improve motor, effective material, and weight, cost, the noise and vibration of reduction motor, thereby overcome the deficiencies in the prior art.
For solving the problems of the technologies described above, the utility model provides a kind of switched reluctance machines of cast-aluminum rotor structure, comprises shell, rotating shaft, stator core, stator winding and rotor core, and wherein: rotating shaft runs through shell, and is rotatably connected with shell; The stator core fixed installation in the enclosure; Stator winding is whole apart from winding, is arranged in the grooving of stator core; Rotor core is fixedly mounted in rotating shaft, is positioned at shell, aligns with stator core, and upwards is provided with motor gas-gap in the footpath with stator core.
As further improvement of the utility model, described rotor core is the cast aluminium structure, comprises pole core and cast-aluminum rotor.
Described pole core adopts magnetic conductive material; Described cast-aluminum rotor adopts the non-magnetic material.
Described magnetic material is silicon steel sheet or sheet metal.
Described stator core is salient-pole structure; Described stator winding distributes and adopts A, B-, C, A-, B, C-form cycle arrangement.
Described stator core adopts the sectionalized stator iron core, and described rotor core adopts the segmented rotor iron core; Be provided with between described sectionalized stator iron core and between the segmented rotor iron core that quantity is identical, the cooling air channel of radially aligned.
Described shell is unenclosed construction, and cover top portion is equipped with cooling blower, and the air outlet of cooling blower is aimed at cooling air channel and rotor core; And at the back segment of rotating shaft, between rotor core rear end and rear bearing assembly parts, cooling fan is installed also.
The front end of described rotating shaft is the shaft extension end, is provided with the rotating shaft keyway, and the shaft extension protective sleeve is installed, and in the rotating shaft keyway, key is installed.
The front and back end of described rotating shaft is assembled to be connected with shell with rear bearing by fore bearing respectively and is connected.
Described switched reluctance machines be single air gap, two air gap and many air gaps radially or the switched reluctance machines of axial magnetic field.
After adopting above design, the utility model has following beneficial effect compared with the prior art:
1, the switched reluctance machines of the utility model cast-aluminum rotor structure has improved power stage density and effective stock utilization of switched reluctance machines, has improved the power factor of switched reluctance machines, has reduced the vibration and noise of switched reluctance machines;
2, only have a phase winding in the same groove of the stator core of the utility model switched reluctance machines, reduced the insulating requirements of motor;
3, switched reluctance machines of the present utility model has adopted and cast-aluminum rotor like the asynchronous squirrel-cage electric machinery, weight and the cost of motor have greatly been reduced, greatly improved switched reluctance machines in the speed governing field competitive advantage used of direct-drive wind power generation field particularly, therefore, can extensively substitute the traditional switch reluctance motor, be applied to speed governing field and power field, especially the direct-drive wind power generation field.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Above-mentioned is only the general introduction of technical solutions of the utility model, and for can clearer understanding the utility model, the utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
Fig. 1 is the composition structural representation of the utility model cast-aluminum rotor structure switched reluctance machines.
Fig. 2 is stator, the rotor profiles structural representation of traditional 24/16 threephase switch reluctance motor.
Fig. 3 is stator, the rotor profiles structural representation of the utility model cast-aluminum rotor structure 24/16 threephase switch reluctance motor.
Fig. 4 is the traditional structure 24/16 threephase switch reluctance motor electromagnetism magnetic line of force cloud charts of a certain moment.
Fig. 5 is the utility model cast-aluminum rotor structure 24/16 threephase switch reluctance motor electromagnetism magnetic line of force cloud charts of a certain moment.
Fig. 6 is the output torque comparison diagram of the utility model cast-aluminum rotor structure 24/16 threephase switch reluctance motor and conventional rotors structure 24/16 threephase switch reluctance motor.
Embodiment
Please refer to shown in Figure 1; take 24/16 threephase switch reluctance motor as example; the switched reluctance machines of the utility model cast-aluminum rotor structure comprises shell 6, rotating shaft 3, stator core 7, stator winding 8 and rotor core 9, also can comprise shaft extension protective sleeve 1, key 2, fore bearing assembling 4, cooling blower 5, cooling fan 10, rear bearing assembling 11, motor wire outlet box 12, cooling air channel 13.
The below is take left end shown in Figure 1 as front end, the structure of the utility model generator formed describe.
Rotating shaft 3 runs through shell 6, and by fore bearing assemble 4 and rear bearing assembling 11 be rotatably connected with shell 6.Rotor core 9 is arranged in rotating shaft 3, between fore bearing assembling 4 and rear bearing assembling 11.Stator core 7 is fixedly connected with the inboard of motor housing 6, and stator winding 8 is installed in the grooving of stator core 7.Rotor core 9 aligns with stator core 7, and stator core 7 is set to motor gas-gap with rotor core 9 radial spacings.
In addition, rotating shaft 3 front ends are the shaft extension end, are provided with keyway, and key 2 is arranged in keyway, and shaft extension protective sleeve 1 is arranged on the shaft extension end of rotating shaft 3.The rear end of rotating shaft 3 is equipped with cooling fan 10 between rotor rear end and rear bearing assembling.
In addition, motor wire outlet box 12 is installed on the side of motor housing 6.Stator core can adopt the sectionalized stator iron core, and rotor core can adopt the segmented rotor iron core, cooling air channel 13 namely be arranged between the sectionalized stator iron core and the segmented rotor iron core between, and the cooling air channel quantity of stator core, rotor core is identical, radially aligned.
Cooling blower 5 is installed on the top of motor housing 6, and generator casing 6 is unenclosed construction.The air intake of cooling blower is through stator, shell 6, the air gap of cooling air channel 13, a tunnel between rotor, and another road is through rotor core axial ventilation road, be flowed to centrifugal fan 10 places, through centrifugal fan 10, get back to cooling blower 5, form the forced ventilated type circulating cooling system.
See also 24/16 threephase switch reluctance motor shown in Figure 2, traditional and comprise stator core 70, stator winding 80, rotor core 90.Stator core 70 is the double-salient-pole structure with rotor core 90, and stator winding 80 is for concentrating winding, and winding is pressed A, B, C, A-, B-, C-, cycle arrangement.
Please coordinate consult shown in Figure 3,24/16 threephase switch reluctance motor of the utility model cast-aluminum rotor structure, its stator core 7 is salient-pole structure, rotor core 9 is the cast aluminium structure, rotor core 9 comprises pole core 91 and cast-aluminum rotor 92, pole core 91 adopts magnetic conductive material, and cast-aluminum rotor 92 adopts the non-magnetic material.Stator winding 8 adopts whole apart from winding, the form cycle arrangement of pressing A, B-, C, A-, B, C-.In figure, " X ", " o " expression electric current flow to direction: " X " expression flows to paper, and paper is flowed out in " o " expression.
See also Fig. 4, shown in Figure 5, Fig. 4 is that the magnetic line of force in traditional 24/16 threephase switch reluctance motor a certain moment of Electromagnetic Simulation distributes; Fig. 5 is that the magnetic line of force distribution in the 24/16 threephase switch reluctance motor a certain moment of Electromagnetic Simulation of the utility model cast-aluminum rotor is found out from the magnetic field line distribution, every utmost point magnetic line of force of a certain moment of the utility model switched reluctance machines distributes and shortens than the every utmost point magnetic line of force of traditional switch reluctance motor distribution path, has reduced core loss.
See also shown in Figure 6, tradition 24/16 threephase switch reluctance motor and the utility model cast-aluminum rotor 24/16 threephase switch reluctance motor, when adopting comparable size, equal effectively material, the comparable traditional 24/16 threephase switch reluctance motor of output torque of the present utility model improves more than 30%.
The above; it is only preferred embodiment of the present utility model; be not that the utility model is done any pro forma restriction, those skilled in the art utilize the technology contents of above-mentioned announcement to make a little simple modification, equivalent variations or modification, all drop in protection range of the present utility model.
Claims (10)
1. the switched reluctance machines of a cast-aluminum rotor structure, is characterized in that comprising shell, rotating shaft, stator core, stator winding and rotor core, wherein:
Rotating shaft runs through shell, and is rotatably connected with shell;
The stator core fixed installation in the enclosure;
Stator winding is whole apart from winding, is arranged in the grooving of stator core;
Rotor core is fixedly mounted in rotating shaft, is positioned at shell, aligns with stator core, and upwards is provided with motor gas-gap in the footpath with stator core.
2. the switched reluctance machines of cast-aluminum rotor structure according to claim 1 is characterized in that:
Described rotor core is the cast aluminium structure, comprises pole core and cast-aluminum rotor.
3. the switched reluctance machines of cast-aluminum rotor structure according to claim 2 is characterized in that:
Described pole core adopts magnetic conductive material; Described cast-aluminum rotor adopts the non-magnetic material.
4. the switched reluctance machines of cast-aluminum rotor structure according to claim 3 is characterized in that:
Described magnetic material is silicon steel sheet or sheet metal.
5. the switched reluctance machines of cast-aluminum rotor structure according to claim 1 is characterized in that:
Described stator core is salient-pole structure; Described stator winding distributes and adopts A, B-, C, A-, B, C-form cycle arrangement.
6. the switched reluctance machines of cast-aluminum rotor structure according to claim 1 is characterized in that:
Described stator core adopts the sectionalized stator iron core, and described rotor core adopts the segmented rotor iron core;
Be provided with between described sectionalized stator iron core and between the segmented rotor iron core that quantity is identical, the cooling air channel of radially aligned.
7. the switched reluctance machines of cast-aluminum rotor structure according to claim 6 is characterized in that:
Described shell is unenclosed construction, and cover top portion is equipped with cooling blower, and the air outlet of cooling blower is aimed at cooling air channel and rotor core;
And at the back segment of rotating shaft, between rotor core rear end and rear bearing assembly parts, cooling fan is installed also.
8. the switched reluctance machines of cast-aluminum rotor structure according to claim 1 is characterized in that:
The front end of described rotating shaft is the shaft extension end, is provided with the rotating shaft keyway, and the shaft extension protective sleeve is installed, and in the rotating shaft keyway, key is installed.
9. the switched reluctance machines of cast-aluminum rotor structure according to claim 1 is characterized in that:
The front and back end of described rotating shaft is assembled to be connected with shell with rear bearing by fore bearing respectively and is connected.
10. the switched reluctance machines of cast-aluminum rotor structure according to claim 1 is characterized in that:
Described switched reluctance machines be single air gap, two air gap and many air gaps radially or the switched reluctance machines of axial magnetic field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220729901 CN202997896U (en) | 2012-12-26 | 2012-12-26 | Switch magnetic resistance motor in cast-aluminum rotor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220729901 CN202997896U (en) | 2012-12-26 | 2012-12-26 | Switch magnetic resistance motor in cast-aluminum rotor structure |
Publications (1)
| Publication Number | Publication Date |
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| CN202997896U true CN202997896U (en) | 2013-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220729901 Withdrawn - After Issue CN202997896U (en) | 2012-12-26 | 2012-12-26 | Switch magnetic resistance motor in cast-aluminum rotor structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103023263A (en) * | 2012-12-26 | 2013-04-03 | 国电联合动力技术有限公司 | Switched reluctance motor of cast-aluminum rotor structure |
| CN104767302A (en) * | 2015-04-09 | 2015-07-08 | 北京杰诺瑞特机电科技有限公司 | Rotor core and stator core, rotor and stator structure and doubly-fed generator |
| CN116317223A (en) * | 2023-05-18 | 2023-06-23 | 山东科技大学 | Direct-driven type magnetic field modulation fault-tolerant permanent magnet wind driven generator |
-
2012
- 2012-12-26 CN CN 201220729901 patent/CN202997896U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103023263A (en) * | 2012-12-26 | 2013-04-03 | 国电联合动力技术有限公司 | Switched reluctance motor of cast-aluminum rotor structure |
| CN103023263B (en) * | 2012-12-26 | 2015-07-15 | 国电联合动力技术有限公司 | Switched reluctance motor of cast-aluminum rotor structure |
| CN104767302A (en) * | 2015-04-09 | 2015-07-08 | 北京杰诺瑞特机电科技有限公司 | Rotor core and stator core, rotor and stator structure and doubly-fed generator |
| CN116317223A (en) * | 2023-05-18 | 2023-06-23 | 山东科技大学 | Direct-driven type magnetic field modulation fault-tolerant permanent magnet wind driven generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130612 Effective date of abandoning: 20150715 |
|
| RGAV | Abandon patent right to avoid regrant |