CN103236759A - Magnetic bearing disc type precise air-conditioner fan - Google Patents
Magnetic bearing disc type precise air-conditioner fan Download PDFInfo
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- CN103236759A CN103236759A CN2013101400045A CN201310140004A CN103236759A CN 103236759 A CN103236759 A CN 103236759A CN 2013101400045 A CN2013101400045 A CN 2013101400045A CN 201310140004 A CN201310140004 A CN 201310140004A CN 103236759 A CN103236759 A CN 103236759A
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- 230000005291 magnetic effect Effects 0.000 title claims abstract description 56
- 230000007246 mechanism Effects 0.000 claims abstract description 5
- 238000004804 winding Methods 0.000 claims abstract description 5
- 239000000725 suspension Substances 0.000 claims description 40
- 210000000515 tooth Anatomy 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 230000001050 lubricating effect Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000004134 energy conservation Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 230000033228 biological regulation Effects 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000010358 mechanical oscillation Effects 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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Abstract
The invention discloses a magnetic bearing disc type precise air-conditioner fan, comprising fan blades, a motor and at least one magnetic bearing, wherein the motor comprises a motor stator, a motor rotor and a stator shaft fixedly arranged on the motor stator; the magnetic bearing comprises a magnetic bearing rotor arranged on the stator shaft and a magnetic bearing stator with an E-shaped section and arranged in a fan blade sleeve; and six stator teeth are axially arranged on the motor stator, a winding is wound on the stator teeth, and the motor rotor comprises four salient pole mechanism arranged on the fan blade sleeve. The magnetic bearing disc type precise air-conditioner fan has the beneficial effects that no mechanical friction is generated between the stator and the rotor, the mechanical noise and vibration are eliminated, the noise and vibration of the air-conditioner fan are greatly reduced, no cooling system and lubricating system are needed, meanwhile the size and weight of the fan are also reduced, and the effects of energy conservation and emission reduction are realized.
Description
Technical field
The present invention relates to a kind of blower fan, especially relate to a kind of magnetic suspension bearing disc type precision air conditioner blower fan.
Background technology
The fan blade motor of precision air conditioner has alternating current motor and DC motor, and the fan blade motor is the power source that drives the fan blade operation.According to precision air conditioner job specification, fan electromotor should have following characteristics:
1, high load capacity long-time continuous running: most of special occasions needed precision air conditioner annual 365 days, continual operation 24 hours every days, and therefore, the definite purpose motor of precision air conditioner blower fan should its working method be high load capacity long time continuous working system.
2, big flow: according to the difference of application scenario, the general employing of precision air conditioner air supply mode gone up air-supply or air-supply down.Make the whole space of air-conditioning radiation, make special occasions be in the state of constant temperature and humidity, must circulate by abundant air quantity.Different as requested simultaneously, under the varying environment, rotating speed of motor is also different, needs speed adjustable range extensively to satisfy the requirement of different big flows.
3, motor operation heat radiation is low: in order to make the motor good heat dissipation effect, on the one hand by dividing cold mode naturally, adopt cooling system on the other hand, in case temperature surpasses design load, system will carry out alarm.
4, the motor running noises is low: in order to reduce the motor running noises, adopt sliding bearing and lubricating system.In addition, suitably strengthen effective external diameter of stator core, and all do reasonable processing at aspects such as stator core stamping plate shapes.
The bearing that is used at present fan electromotor all is mechanical bearing, and the frictional force of bearing inside is very big, and motor need overcome this part frictional force and could drive fan blade and rotate, and causes the energy consumption increase of whole system.
Dial switch reluctance motor main feature is power density height, efficient height, flexible, the efficient stepless speed regulation of control method, electric machine structure is firmly compact, the power to volume ratio height, overload capacity is big, and body is thin, reliable, the axial magnetic field dial switch reluctance motor of the flat structure of good heat dissipation effect is suitable for high-speed cruising, and low, the dependable performance of the simple cost of drive circuit, all than higher, and can realize control easily in the range of speeds internal efficiency of broadness.
Along with the progress of epoch and science and technology, the application of precision air conditioner more and more widely, the harshness of air-conditioning quality requirement also highlights day by day, and at present on the market air-conditioning draught fan has been difficult to satisfy market to the demand of the low vibration of high-quality low-power consumption low noise.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of magnetic suspension bearing disc type precision air conditioner blower fan, be intended to solve the heat radiation dependence cooling system that present common blower fan produces, and bearing relies on lubricating system, then the work energy consumption of bringing is big, the big problem of noise, the functional effect of the motor that adopts is unsatisfactory, has been difficult to satisfy market to the problem of the demand of the low vibration of high-quality low-power consumption low noise.
For addressing the above problem, the technical solution used in the present invention is:
A kind of magnetic suspension bearing disc type precision air conditioner blower fan, comprise fan blade and motor, also comprise and be no less than one magnetic suspension bearing, described motor comprises motor stator, rotor and is fixed on stator axis on the motor stator, described magnetic suspension bearing comprises the magnetic suspension bearing rotor that is arranged on the stator axis and is arranged on the magnetic suspension bearing stator that the interior cross section of fan blade sleeve is E shape, six stator tooths axially are set on the described motor stator, be wound with winding on the described stator tooth, described rotor is arranged on four salient pole mechanisms on the sleeve of fan blade.
As a further improvement on the present invention, leave air gap between described magnetic suspension bearing stator and the magnetic suspension bearing rotor.
As a further improvement on the present invention, described air gap length is 0.2mm-2mm.
As a further improvement on the present invention, leave air gap between described motor stator and the rotor.
Further improve as of the present invention, described air gap length is 0.2mm-2mm.
The present invention utilizes not waiting of magnetic resistance, and magnetic flux is the characteristics in the little Route Set of magnetic resistance always, and the motor stator of energising makes magnetic force produce tangential component with the ferromagnetic rotor of magnetic attraction, namely produces the torque to rotor, and fan blade is rotated; Fan blade is by magnetic suspension bearing five degree of freedom location, owing to rotor is arranged on the sleeve of fan blade, so rotor is also located by five degree of freedom; During blade rotation, the stator of magnetic suspension bearing produces attraction to rotor, make between the stator of magnetic suspension bearing and the rotor and be magnetic suspension state, there is not mechanical friction, the magnetic suspension bearing running resistance is zero, can not generate heat, thereby cooling system and lubricating system have been saved, reduced volume weight, but improve reliability and life-span, the magnetic suspension running has reduced machinery noise greatly, has also reduced mechanical oscillation simultaneously greatly, be Oscillation Amplitude from far away less than common blower fan, improved the stability of whole precision air conditioner; The power of motor density height that adopts among the present invention, efficient height, flexible, the efficient stepless speed regulation of control method, electric machine structure is firmly compact, the power to volume ratio height, overload capacity is big, and body is thin, reliable, the axial magnetic field dial switch reluctance motor of the flat structure of good heat dissipation effect is suitable for high-speed cruising, and low, the dependable performance of the simple cost of drive circuit, all than higher, and can realize four-quadrant control easily in the range of speeds internal efficiency of broadness.The present invention adopts the dial switch reluctance motor to drive the fan blade rotation, has not only simplified blower fan structure, and the dial switch reluctance motor has premium properties such as power density height, efficient height, flexible, the efficient stepless speed regulation of control method.
Description of drawings
Fig. 1 is structural scheme of mechanism of the present invention.
Wherein 1, fan blade; 2, rotor; 3, motor stator; 4, stator axis; 5, magnetic suspension bearing stator; 6, magnetic suspension bearing rotor; 7, stator tooth; 8, winding.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described further.
Magnetic suspension bearing disc type precision air conditioner blower fan as shown in Figure 1, comprise fan blade 1 and motor, two magnetic suspension bearing, described motor comprises motor stator 3, rotor 2 and the stator axis 4 that is fixed on the motor stator 3, described magnetic suspension bearing comprises the magnetic suspension bearing rotor 6 that is arranged on the stator axis 4 and is arranged on the magnetic suspension bearing stator 5 that the interior cross section of fan blade 1 sleeve is E shape, six stator tooths 7 axially are set on the described motor stator 3, be wound with winding 8 on the described stator tooth 7, described rotor 2 is arranged on four salient pole mechanisms on the sleeve of fan blade 1.Leave the axial air-gap that length is 0.2mm-2mm between the stator 5 of described magnetic suspension bearing and the rotor 6, leave the gap that length is 0.2mm-2mm between described motor stator 5 and the rotor 2.
During magnetic suspension bearing disc type precision air conditioner blower fan of the present invention work, become magnetic suspension state between described magnetic suspension bearing stator 5 and the described magnetic suspension bearing rotor 6, do not have mechanical friction.
Motor main feature of the present invention is power density height, efficient height, flexible, the efficient stepless speed regulation of control method, electric machine structure is firmly compact, the power to volume ratio height, overload capacity is big, and body is thin, reliable, the axial magnetic field dial switch reluctance motor of the flat structure of good heat dissipation effect is suitable for high-speed cruising, and low, the dependable performance of the simple cost of drive circuit, all than higher, and can realize control easily in the range of speeds internal efficiency of broadness.Electric machine structure of the present invention drives the fan blade rotation, has not only simplified blower fan structure, and power density height, efficient height, control method flexibly, premium properties such as efficient stepless speed regulation.
Because the blower fan of precision air conditioner adopts mechanical bearing more at present, therefore can produce mechanical friction between blower fan main shaft and the bearing, and motor must overcome this part friction and could drive fan blade and rotate, cause simultaneously that the motor feels hot, produce vibration by a relatively large margin, make fan life reduce, want to realize that the long operation of blower fan also needs bearing lubrication system and cooling system, especially the maintenance of middle and later periods and loss are obvious especially, cause the energy consumption of whole system to increase.If employing magnetic suspension bearing, there is not mechanical friction between the stator and rotor, the magnetic bearing running resistance is zero, can not generate heat, thereby save cooling system and lubricating system, reduced volume weight, improved reliability and life-span, the running that suspends has significantly reduced machinery noise, has also significantly reduced mechanical oscillation simultaneously, Oscillation Amplitude is far smaller than common blower fan, has improved the stability of whole precision air conditioner.
Special instruction is prior art in all the specification, and concrete case study on implementation only is preferable case study on implementation of the present invention described in the present invention, is not to limit practical range of the present invention.Be that all equivalences of doing according to the content of the present patent application claim change and modification, all should be as technology category of the present invention.
Claims (5)
1. magnetic suspension bearing disc type precision air conditioner blower fan, comprise fan blade (1) and motor, it is characterized in that: also comprise being no less than one magnetic suspension bearing, described motor comprises motor stator (3), rotor (2) and be fixed on stator axis (4) on the motor stator (3), described magnetic suspension bearing comprises the magnetic suspension bearing rotor (6) that is arranged on the stator axis (4) and is arranged on the magnetic suspension bearing stator (5) that the interior cross section of fan blade (1) sleeve is E shape, six stator tooths (7) axially are set on the described motor stator (3), be wound with winding (8) on the described stator tooth (7), described rotor (2) is arranged on four salient pole mechanisms on the sleeve of fan blade (1).
2. magnetic suspension bearing disc type precision air conditioner blower fan according to claim 1 is characterized in that: leave air gap between described magnetic suspension bearing stator (5) and the magnetic suspension bearing rotor (6).
3. magnetic suspension bearing disc type precision air conditioner blower fan according to claim 2, it is characterized in that: described air gap length is 0.2mm-2mm.
4. magnetic suspension bearing disc type precision air conditioner blower fan according to claim 1 is characterized in that: leave air gap between described motor stator (3) and the rotor (2).
5. magnetic suspension bearing disc type precision air conditioner blower fan according to claim 4, it is characterized in that: described air gap length is 0.2mm-2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310140004.5A CN103236759B (en) | 2013-04-22 | 2013-04-22 | A kind of magnetic suspension bearing disc type precise air-conditioner fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310140004.5A CN103236759B (en) | 2013-04-22 | 2013-04-22 | A kind of magnetic suspension bearing disc type precise air-conditioner fan |
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| Publication Number | Publication Date |
|---|---|
| CN103236759A true CN103236759A (en) | 2013-08-07 |
| CN103236759B CN103236759B (en) | 2016-07-06 |
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| CN201310140004.5A Active CN103236759B (en) | 2013-04-22 | 2013-04-22 | A kind of magnetic suspension bearing disc type precise air-conditioner fan |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103944335A (en) * | 2014-04-11 | 2014-07-23 | 曲阜师范大学 | Low-speed high-torque disc synchronous motor |
| CN109483883A (en) * | 2018-12-06 | 2019-03-19 | 安徽恒利增材制造科技有限公司 | A kind of 3d printer |
| CN114368472A (en) * | 2022-02-12 | 2022-04-19 | 北京金璐东方联合物流有限公司 | Magnetic suspension propeller and turbojet engine applying same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5679992A (en) * | 1995-10-11 | 1997-10-21 | Ebara Corporation | Bearing unit |
| CN1414687A (en) * | 2002-05-31 | 2003-04-30 | 沈阳工业大学 | Axial controllable magnetic suspension permanent magnet disk type blood pump motor |
| CN101158376A (en) * | 2007-11-15 | 2008-04-09 | 苏州大学 | Magnetic levitation motor bearings structure |
| CN101915214A (en) * | 2010-07-22 | 2010-12-15 | 南京工业大学 | Five-freedom degree full-suspension vertical shaft wind power generator in outer-rotor structure |
| CN102148592A (en) * | 2010-02-08 | 2011-08-10 | 国能风力发电有限公司 | Magnetic suspension support structure used for vertical hub-disk motor |
| CN203272174U (en) * | 2013-04-22 | 2013-11-06 | 南京工业大学 | Magnetic suspension bearing disk type precision air conditioner fan |
-
2013
- 2013-04-22 CN CN201310140004.5A patent/CN103236759B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5679992A (en) * | 1995-10-11 | 1997-10-21 | Ebara Corporation | Bearing unit |
| CN1414687A (en) * | 2002-05-31 | 2003-04-30 | 沈阳工业大学 | Axial controllable magnetic suspension permanent magnet disk type blood pump motor |
| CN101158376A (en) * | 2007-11-15 | 2008-04-09 | 苏州大学 | Magnetic levitation motor bearings structure |
| CN102148592A (en) * | 2010-02-08 | 2011-08-10 | 国能风力发电有限公司 | Magnetic suspension support structure used for vertical hub-disk motor |
| CN101915214A (en) * | 2010-07-22 | 2010-12-15 | 南京工业大学 | Five-freedom degree full-suspension vertical shaft wind power generator in outer-rotor structure |
| CN203272174U (en) * | 2013-04-22 | 2013-11-06 | 南京工业大学 | Magnetic suspension bearing disk type precision air conditioner fan |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103944335A (en) * | 2014-04-11 | 2014-07-23 | 曲阜师范大学 | Low-speed high-torque disc synchronous motor |
| CN109483883A (en) * | 2018-12-06 | 2019-03-19 | 安徽恒利增材制造科技有限公司 | A kind of 3d printer |
| CN109483883B (en) * | 2018-12-06 | 2020-12-25 | 安徽恒利增材制造科技有限公司 | 3d printer |
| CN114368472A (en) * | 2022-02-12 | 2022-04-19 | 北京金璐东方联合物流有限公司 | Magnetic suspension propeller and turbojet engine applying same |
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| Publication number | Publication date |
|---|---|
| CN103236759B (en) | 2016-07-06 |
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Effective date of registration: 20161017 Address after: Tai Feng Road along the street of Pukou District of Nanjing City, Jiangsu province 210000 No. 59 room 206 Silicon Valley 2-B business days Patentee after: Nanjing wheel Power Technology Co., Ltd. Address before: 210009 Nanjing new model road, Jiangsu, No. 30 Patentee before: Nanjing University of Technology |