CN201699490U - Reluctance motor - Google Patents
Reluctance motor Download PDFInfo
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- CN201699490U CN201699490U CN2010201631732U CN201020163173U CN201699490U CN 201699490 U CN201699490 U CN 201699490U CN 2010201631732 U CN2010201631732 U CN 2010201631732U CN 201020163173 U CN201020163173 U CN 201020163173U CN 201699490 U CN201699490 U CN 201699490U
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Abstract
The utility model discloses a reluctance motor, which comprises a non magnetic-conducting frame, at least more than one U-shaped magnetic-conducting stators fixed on the non magnetic-conducting frame, a motor shaft penetrating the axis wire of the U-shaped magnetic-conducting stator blocks, and magnetic-conducting rotors fixed on the motor shaft, wherein the stators and the rotors are oppositely arranged in the axial direction; a gap is formed between each U-shaped stator block and the rotor block; and the magnetic flux generated by a stator winding is parallel to the motor shaft. In the utility model, attraction and repellant exist simultaneously between the stator and the rotor of the switched reluctance motor and are identical in magnitude and direction. Therefore, compared with the conventional switched reluctance motor, the power density of the motor is improved, the utilization ratio of the motor winding and magnetic circuit are also improved, and the torque pulsation is reduced.
Description
Technical field
The utility model discloses a kind of reluctance motor, belong to motor, power electronics and electric drive field, the switched reluctance machines that particularly relates to a kind of horizontal air gap can be applied to applications such as robot, Digit Control Machine Tool, motor vehicle, motion control and wind power generation.
Background technology
Switched reluctance machines is the buncher of new generation that utilizes the magnetic resistance principle, have function admirable, firm, braking simple in structure and low speed torque is big, electric current is less, overload capacity is strong, and has a high efficiency in wide speed range, is just obtaining increasingly extensive application.How further improving electric efficiency, overload capacity and simplification radiator structure, is the direction that engineers and technicians study.
Traditional switched reluctance machines is the biconvex electrode structure of radial air gap.As shown in Figure 1, the rotor 1 of traditional 8/6 structure switch magnetic resistance motor and stator 2 build up by silicon steel sheet, do not have coil on the rotor 1, have air gap between rotor 1 and the stator 2.Though do not have coil on the rotor of switched reluctance machines, it is simpler to dispel the heat, because the stator coil 3 on the stator 2 is enclosed in the stator slot, is unfavorable for motor radiating.In more powerful application, increase the motor radiating ability, can only on stator 2, increase aluminium alloy heat radiator 5, increased motor cost undoubtedly and increased motor weight, and, limited switched reluctance machines and in the conditional occasion of installing space, used because the radiator stock size is bigger.
Fig. 2 is the magnetic circuit in the switched reluctance machines work of conventional radial air gap, and therefrom the motor magnetic circuit is longer as can be seen, and this will cause motor to have bigger iron loss and bigger magnetic hysteresis loss, also will cause motor that more heating is arranged.
Utility model patent is 200680043128.X (switched reluctance machines) 1., discloses a kind of method that reduces radial air gap switched reluctance machines noise and prevent motor overheating.Its essence is stator and the rotor of designing different curvature radius (as ellipse) shape, the gap that stator core is given prominence between the outstanding magnetic pole of magnetic pole and rotor core reduces gradually at phase inductance increase district air gap, reduces to distinguish air gap at phase inductance and increases gradually.And guarantee that air duct is not filled up by resin, prevent that switched reluctance machines is overheated.Though this structure decrease noise of motor, reduced torque pulsation, and be convenient to motor radiating, but shortcoming is: (1) improves the rate of change that the output of switched reluctance machines power requires to improve phase inductance, because the increase at air gap causes the phase inductance rate of change to reduce, though reduced torque pulsation and noise of motor, weakened Switched Reluctance Motor; (2) though this structure can be guaranteed the motor internal circulation of air, improved the motor radiating performance to a certain extent, but because motor seals, inner air can't form convection current with extraneous air, cause internal heat to form exchange heat, so the heat dispersion raising is limited with the outside.
Utility model patent is 200510010551.7 (short magnetic circuit mixing exciting switch Magnet resistance motors) 2., disclose and a kind ofly in the switched reluctance machines of radial air gap, embedded permanent magnet, obtain the space availability ratio of increase switched reluctance machines, and reduced the effect of pulsation of torque.But, the shortcoming of this method clearly: permanent magnet has problem such as hysteresis effect and demagnetization and costs an arm and a leg, and has difficulties making and install, and reduces the DeGrain of torque pulsation, and it is limited to improve motor performance.
Utility model patent is 200710024615.8 (axial switch reluctance motors) 3., a kind of switched reluctance machines of axial air-gap is disclosed, different with the switched reluctance machines of traditional radial air gap is, the flow direction that winding electric machine produces along motor shaft to, rather than radially.Stator and rotor have reduced the radial dimension of motor in the axial withdrawal distance like this, and the power transfer mode is directly axially transmission, and energy utilization ratio improves.But, problem such as it is longer still not break away from traditional switched reluctance machines magnetic circuit, and iron loss is bigger.
There are a lot of defectives in therefore existing motor, needs to improve.
The utility model content
The utility model mainly is at the shortcoming of switched reluctance machines in the past, carries out structural improvement, to improve the combination property of motor.
The purpose of this utility model is to provide a kind of switched reluctance machines, is intended to solve existing switched reluctance machines and exists the utilance of motor windings and magnetic circuit very low, and the power density of motor is little, the problem that torque pulsation is bigger.
A kind of reluctance motor, comprise non-magnetic conduction support, be fixed at least more than one U type magnetic conduction stator block on the non-magnetic conduction support, run through the motor shaft of U type magnetic conduction stator block axis, and be fixed on magnetic conduction rotor on the motor shaft, described stator and rotor are oppositely arranged vertically, be provided with the gap between described U type stator block and the described rotor block, the magnetic flux that described stator winding produces is parallel with described motor shaft, wherein in the middle of two adjacent rotors pieces the magnetic isolation plate of being made by non-magnet material is housed.
Described motor, wherein, two U type magnetic conduction stator blocks are arranged on the two ends of described non-magnetic conduction support, and two magnetic conduction rotors are arranged on two motor shafts between the U type magnetic conduction stator block.
Described motor, wherein, two magnetic conduction rotors are arranged on the two ends of motor shaft on the described non-magnetic conduction support, and two U type magnetic conduction stator blocks are arranged on two motor shafts between the magnetic conduction rotor.
Described motor, wherein, the corresponding setting of described U type stator block with the number of pole-pairs of described rotor block.
Described motor, wherein, described rotor block is the platypelloid type rotor block, at least two projections of rotor block radial position setting.
Described motor, wherein, the number of described projection is 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9 or 10 or 12.
Described motor, wherein, described rotor block is star-like or gear-like.
Described motor, wherein, the gap between the projection of described rotor block and the two groups of U type stator blocks
Be oppositely arranged
Described motor, wherein, the corresponding setting of described U type stator block, the number of pole-pairs fit form 6/4 of described U type stator block and described rotor block or 8/6 or 12/8 or 12/10 with the number of pole-pairs of described rotor block.
A kind of reluctance motor, comprise non-magnetic conduction support, be fixed at least more than one C type magnetic conduction stator block on the non-magnetic conduction support, the motor shaft that runs through C type magnetic conduction stator block axis, and be fixed on magnetic conduction rotor on the motor shaft, described stator and rotor are oppositely arranged vertically, be provided with the gap between described C type stator block and the described rotor block, each C type magnetic conduction stator block is provided with the stator winding that can make the magnetic conduction stator rotor be produced repulsive force, the magnetic flux that described stator winding produces is parallel with described motor shaft, wherein in the middle of two adjacent rotors pieces the magnetic isolation plate of being made by non-magnet material is housed.
Beneficial effect, in the utility model, there are the suction-combining force and repulsive force between the stator of switched reluctance machines and the rotor simultaneously, their equal and opposite in directions, the direction unanimity is compared with traditional switched reluctance machines like this, has improved the power density of motor, and improved the utilance of motor windings and magnetic circuit, reduced torque pulsation.
Description of drawings
Fig. 1 is the switched reluctance machines cut-away view of traditional 8/6 structure;
Fig. 2 is traditional 8/6 structure switch magnetic resistance motor magnetic structure;
Fig. 3 is one of internal structure of motor figure;
Fig. 4 is one of motor magnetic circuit figure;
Fig. 5 be electric machine structure figure it;
Fig. 6 is a U type stator block;
Fig. 7 is two of internal structure of motor figure;
Fig. 8 is the C type stator block of motor internal.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
Embodiment 1
As Fig. 3, Fig. 4 Fig. 5, shown in Figure 6, a kind of reluctance motor, motor is made up of platypelloid type rotor block 1B, U type stator block 2B, excitation winding 3B, support 4B, motor shaft 5B and magnetic isolation plate 6B.Support 4B is made by non-magnet material, rotor block 1B and U type stator block 2B and be magnetic conductor, can make by permeability magnetic materials such as silicon steel sheet, electrical sheets, the magnetic isolation plate 6B that is made by non-magnet material wherein is housed in the middle of the rotor block 1B, U type stator block 2B evenly is fixed on the support 4B, and is relative vertically with rotor block, and there is predetermined gap the centre, rotor block 1B evenly is fixed on the motor shaft 5B, and U type stator block 2B evenly is fixed on the support 5B; Along motor shaft to being furnished with two symmetrical groups U type stator block.On U type stator block 2B, be wound with excitation winding 3B.The number of pole-pairs fit form of U type stator block 2B and rotor block 1B can adopt existing switched reluctance machines form, as 6/4,8/6,12/8 etc.
After above technical scheme is implemented, the magnetic line of force during machine operation as shown in Figure 4, visible magnetic circuit 11 has shortened a lot, has reduced the loss of electric machine greatly.Because motor windings and U type stator block are open, are convenient to cross-ventilation, good heat dissipation effect has been simplified heat abstractor greatly, and make, install and maintenance all very convenient, can modularization production, suitable enterprise applies in enormous quantities.
Specific embodiment 2
As Fig. 3, shown in Figure 6: motor is made up of platypelloid type rotor block 1B, U type stator block 2B, excitation winding 3B, support 4B, motor shaft 5B and magnetic isolation plate 6B.The magnetic circuit of motor adopts the layout type of axial air-gap.Platypelloid type rotor block 1B and U type stator block 2B are magnetic conductors, can be overrided to form by soft magnetic bodies such as silicon steel sheets.Between U type stator block 2B and the platypelloid type rotor block 1B is the gap of being scheduled to, platypelloid type rotor block 1B is evenly distributed on the motor shaft 5B, U type stator block 2B evenly is fixed on the support 4B, centralized excitation winding 3B is arranged on stator, excitation winding 3B on U type stator block 2B forms the two poles of the earth magnetic pole, is called " phase ".
As shown in Figure 3: in the motor operation course, as rotor block 1B during near U type stator block 2B, the excitation winding 3B excitation of switching on.According to the minimum reluctance principle, U type stator block 2B produces electromagnetic torque to rotor block 1B and will try hard to make rotor block 1 to turn to the position of the coincides of the main shaft of rotor block 1 and U type stator block 2, because at this moment the magnetic resistance minimum will form the magnetic circuit shown in figure four between U type stator block 2B and the rotor block 1B.
When rotor block 1B left U type stator block 2B, excitation winding 3B outage was in order to avoid produce reverse electromagnetic torque.Like this, to every phase excitation winding energising, outage, motor has just rotated continuously in turn.
The switched reluctance machines of traditional radial air gap is that two radially relative windings constitute the two poles of the earth, forms a phase winding, and stator yoke portion is long, magnetic circuit is grown (as shown in Figure 2), and motor is heavier, iron loss is big, power density is little.In the utility model, the air gap of motor is axial, has cancelled stator yoke portion, and stator and rotor directly constitute flux circuit, and magnetic circuit is very short, and iron loss is very low.For eliminating monolateral axial tension, motor vertically symmetric arrangement two platypelloid type rotor block 1B and two groups of U type stator blocks and two groups of excitation winding 3B, magnetic isolation plate 6B separates two rotor block 1B, guarantees that axially relative U type stator block 2B does not have flux circuit.
The excitation winding of the switched reluctance machines of traditional radial air gap is wound in the narrow and small stator slot (as shown in Figure 1), stator and rotor are sealed by the electric motor end cap at axial two ends, so the groove inner air flow is not smooth, clearly, this heat radiation for winding is unfavorable, can only rely on outside radiator to accelerate exchange heat.In the utility model, excitation winding, rotor and stator all are Open architecture, and air forms convection current easily, convenient formation heat exchange, and this is for preventing motor overheating, the overload capacity that improves motor is very favourable.
Specific embodiment 3
As Fig. 7, shown in Figure 8: motor is made up of platypelloid type rotor block 1C, C type stator block 2C, excitation winding 3C, support 4C and motor shaft 5C.The magnetic circuit of motor adopts the layout type of axial air-gap.Platypelloid type rotor block 1C and C type stator block 2C are magnetic conductors, can be overrided to form by soft magnetic bodies such as silicon steel sheets.Between C type stator block 2C and the platypelloid type rotor block 1C is the gap of being scheduled to, platypelloid type rotor block 1C is evenly distributed on the motor shaft 5C, C type stator block 2C evenly is fixed on the support 4C, centralized excitation winding 3C is arranged on stator, excitation winding 3C on two axially relative C type stator block 2C forms the two poles of the earth magnetic pole, is called " phase ".
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection range of the utility model claims.
Claims (10)
1. reluctance motor, it is characterized in that, comprise non-magnetic conduction support, be fixed at least more than one U type magnetic conduction stator block on the non-magnetic conduction support, run through the motor shaft of U type magnetic conduction stator block axis, and be fixed on magnetic conduction rotor on the motor shaft, described stator and rotor are oppositely arranged vertically, be provided with the gap between described U type stator block and the described rotor block, the magnetic flux that described stator winding produces is parallel with described motor shaft.
2. motor according to claim 1, it is characterized in that: two U type magnetic conduction stator blocks are arranged on the two ends of described non-magnetic conduction support, two magnetic conduction rotors are arranged on two motor shafts between the U type magnetic conduction stator block, wherein, a non-magnetic conduction magnetic isolation plate are set between two adjacent magnetic conduction rotors.
3. motor according to claim 1, it is characterized in that: two magnetic conduction rotors are arranged on the two ends of motor shaft on the described non-magnetic conduction support, two U type magnetic conduction stator blocks are arranged on two motor shafts between the magnetic conduction rotor, wherein, between adjacent two U type magnetic conduction stator blocks a non-magnetic conduction magnetic isolation plate is set.
4. motor according to claim 1 is characterized in that: the corresponding setting with the number of pole-pairs of described rotor block of described U type stator block.
5. motor according to claim 1 is characterized in that: described rotor block is the platypelloid type rotor block, at least two projections of rotor block radial position setting.
6. motor according to claim 5 is characterized in that: the number of described projection is 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9 or 10 or 12.
7. motor according to claim 1 is characterized in that: described rotor block is star-like or gear-like.
8. motor according to claim 1 is characterized in that: the gap between the projection of described rotor block and the two groups of U type stator blocks is oppositely arranged
9. motor according to claim 1 is characterized in that: the corresponding setting with the number of pole-pairs of described rotor block of described U type stator block, the number of pole-pairs fit form 6/4 of described U type stator block and described rotor block or 8/6 or 12/8 or 12/10.
10. reluctance motor, it is characterized in that, comprise non-magnetic conduction support, be fixed at least more than one C type magnetic conduction stator block on the non-magnetic conduction support, run through the motor shaft of C type magnetic conduction stator block axis, and be fixed on magnetic conduction rotor on the motor shaft, described stator and rotor are oppositely arranged vertically, be provided with the gap between described C type stator block and the described rotor block, the magnetic flux that described stator winding produces is parallel with described motor shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201631732U CN201699490U (en) | 2010-04-13 | 2010-04-13 | Reluctance motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201631732U CN201699490U (en) | 2010-04-13 | 2010-04-13 | Reluctance motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201699490U true CN201699490U (en) | 2011-01-05 |
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ID=43400734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201631732U Expired - Lifetime CN201699490U (en) | 2010-04-13 | 2010-04-13 | Reluctance motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN201699490U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101860159A (en) * | 2010-04-13 | 2010-10-13 | 深圳市轴心自控技术有限公司 | Novel switched reluctance motor |
| CN104135090A (en) * | 2013-04-30 | 2014-11-05 | 财团法人工业技术研究院 | Mover and stator mechanism of motor |
-
2010
- 2010-04-13 CN CN2010201631732U patent/CN201699490U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101860159A (en) * | 2010-04-13 | 2010-10-13 | 深圳市轴心自控技术有限公司 | Novel switched reluctance motor |
| CN104135090A (en) * | 2013-04-30 | 2014-11-05 | 财团法人工业技术研究院 | Mover and stator mechanism of motor |
| CN104135090B (en) * | 2013-04-30 | 2017-01-18 | 财团法人工业技术研究院 | Mover and stator mechanism of motor |
| US9893572B2 (en) | 2013-04-30 | 2018-02-13 | Industrial Technology Research Institute | Mover and stator assembly of electric machine having convex and concave portions for a respective stator and rotor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 518000 Guangdong Province, Shenzhen city Longhua District Guanlan Street No. 334 Silicon Valley Guangxi Yuelu power automobile electronic business park building A14 Patentee after: Shenzhen Axxon Automation Co., Ltd. Address before: Guangdong Shenzhen City, Futian District Tianan Digital City Tianji building CD 3C Patentee before: Shenzhen Axxon Automation Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110105 |