CN107346924A - A kind of blower motor and hair-dryer - Google Patents
A kind of blower motor and hair-dryer Download PDFInfo
- Publication number
- CN107346924A CN107346924A CN201710734235.7A CN201710734235A CN107346924A CN 107346924 A CN107346924 A CN 107346924A CN 201710734235 A CN201710734235 A CN 201710734235A CN 107346924 A CN107346924 A CN 107346924A
- Authority
- CN
- China
- Prior art keywords
- magnetic bearing
- radial
- armature spindle
- blower motor
- position sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/09—Structural association with bearings with magnetic bearings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N15/00—Holding or levitation devices using magnetic attraction or repulsion, not otherwise provided for
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The present invention relates to hair-dryer technical field, more particularly to a kind of blower motor using magnetic suspension bearing.A kind of blower motor of the present invention, including stator, rotate the rotor being arranged in the stator, the rotor includes rotor permanent magnet and axially disposed armature spindle, at least one radial direction magnetic bearing for being used to adjust the radial position of the armature spindle and at least one axial magnetic bearing for being used to adjust armature spindle axial location are arranged with the armature spindle, wherein, the rotor permanent magnet is disposed in proximity to the end of the armature spindle, and the radial direction magnetic bearing and the axial magnetic bearing are arranged at the armature spindle from one end that the rotor permanent magnet stretches out.The hair-dryer of the present invention includes above-mentioned blower motor.The blower motor and hair-dryer, rotating speed can not be improved by solving the problems, such as that existing motor is limited by bearing, and it is not only operated reliably, but also greatly extends service life, improves operating efficiency.
Description
Technical field
The present invention relates to hair-dryer technical field, more particularly to a kind of blower motor using magnetic suspension bearing and have
The hair-dryer of the blower motor.
Background technology
Hair-dryer is mainly used in the drying and shaping of hair, but also is available for laboratory, psyciotherapy room and industrial production, art designing etc.
Aspect is made local desiccation, heating and physiotherapy and is used, and is combined by one group of heating wire and one high rotating speed small fan.It is powered
When, heating wire can produce heat, and the wind of fan blowout passes through heating wire, reforms into hot blast.
The motor types according to used in it, exchange series excitation type, exchange shaded-pole and direct current permanent magnetic can be divided into.Series excitation
The advantages of formula hair-dryer is that detent torque is big, and rotating speed is high, is adapted to the powerful hair-dryer of manufacture；Shortcoming is that noise is big, commutator
There is certain interference to telecommunication apparatus.The advantages of shaded-pole hair-dryer is that noise is small, long lifespan, and telecommunication apparatus will not be caused to do
Disturb；Shortcoming is that rotating speed is low, and startability is poor, and weight is big.
In the prior art, motor is usually and is made up of casing, permanent-magnet steel, carbon brush, rotor and rotor windings, and it is being operated
When, because that can produce high-speed friction between carbon brush and commutator while make the continuous switching electric current of rotor windings, carbon brush is result in changing
To spark is easily produced between device, if rotating speed is too high will to cause heavy wear between carbon brush and commutator, so as to influence the product longevity
Life, or even burn rapidly.According to conventional brushless motor as blower motor, at high speed, its bearing is rubbed due to machinery
Wiping causes energy loss, temperature rise, so as to cause bearing damage, make maintenance and change frequently, cause existing brushless electricity
Machine its can not bear excessive speeds so that rotating speed maximum can only accomplish 80000RPM or so.
The content of the invention
It is an object of the invention to propose a kind of blower motor and hair-dryer, solve existing motor and limited by bearing
The problem of rotating speed can not be improved so that up to 150000RPM, it is not only operated reliably, but also greatly the maximum speed of motor
Ground extends service life, improves operating efficiency.
To use following technical scheme up to this purpose, the present invention：
On the one hand, the present invention provides a kind of blower motor, including stator, rotates the rotor being arranged in the stator,
The rotor includes rotor permanent magnet and axially disposed armature spindle, is arranged with the armature spindle at least one for adjusting
The radial direction magnetic bearing of the radial position of the armature spindle and at least one axial magnetic bearing for being used to adjust armature spindle axial location,
Wherein, the rotor permanent magnet is disposed in proximity to the end of the armature spindle, the radial direction magnetic bearing and the axial magnetic bearing
The armature spindle is arranged at from one end that the rotor permanent magnet stretches out.
Wherein, impeller is also equipped with the armature spindle, the impeller is arranged on the armature spindle to be turned away from described
The other end of sub- permanent magnet, the radial direction magnetic bearing and the axial magnetic bearing be located at the impeller and the rotor permanent magnet it
Between.
Wherein, the axial magnetic bearing has been wholely set axial position sensor, for monitoring the armature spindle in axial direction
Present position.
It is wherein, in addition at least one for monitoring radial-direction position sensor of the armature spindle in radial direction present position,
The corresponding radial direction magnetic bearing of each described radial-direction position sensor is set, and the radial-direction position sensor connects motor
Control panel.
Wherein, the periphery of the radial-direction position sensor is provided with the fixed plate for being used for fixing the radial-direction position sensor.
Wherein, the radial direction magnetic bearing is provided with two, and the axial magnetic bearing is provided with two, two axial magnetic axises
Hold and be respectively arranged between two radial direction magnetic bearings, and two axial magnetic bearings are arranged at intervals.
Wherein, two axial magnetic bearings are respectively upper axial magnetic bearing and lower axial magnetic bearing.
Wherein, the radial-direction position sensor is two, and two radial-direction position sensors are respectively arranged at two institutes
State the outside of radial direction magnetic bearing.
Wherein, the respectively upper radial direction magnetic bearing of two radial direction magnetic bearings and lower radial direction magnetic bearing, two radial directions
Position sensor is respectively that upper radial-direction position sensor and lower radial-direction position sensor, the upper radial-direction position sensor correspond to
The upper radial direction magnetic bearing, the lower radial-direction position sensor correspond to the lower radial direction magnetic bearing.
Wherein, the blower motor sets an electricity for individually controlling the axial magnetic bearing and the radial direction magnetic bearing
Source.
On the other hand, the present invention provides a kind of hair-dryer with the blower motor.
Beneficial effects of the present invention are：
The blower motor of the present invention, using magnetic suspension principle, realize that radial position is adjusted using two radial direction magnetic bearings,
Realize that axial location is adjusted using two axial magnetic bearings, thus can accurately and reliably realize the position control of armature spindle, and
And in armature spindle rotation process, it does not contact with radial direction magnetic bearing, axial magnetic bearing and avoids producing abrasion, so as to very
The high speed demand of hair-dryer is adapted to well, the problem of existing motor can be overcome, which to be limited by bearing, can not improve rotating speed, fortune
Turn reliable, greatly extend service life, improve operating efficiency.
Brief description of the drawings
Fig. 1 is the cross-sectional view of the blower motor of the present invention.
In figure：1- motor control panels；2- rotors；3- stators；The upper radial-direction position sensors of 4-；The upper radial direction magnetic bearings of 5-；6-
Upper axial magnetic bearing；Axial magnetic bearing under 7-；Radial direction magnetic bearing under 8-；Radial-direction position sensor under 9-；10- impellers；11- rotors
Axle.
Embodiment
Traditional motor is made up of stator and rotor, is coupled between stator and rotor by mechanical bearing or machinery be present
Contact, therefore mechanical friction during rotor motion be present, moving component is worn, produces mechanical oscillation and noise, Er Qiehui
Causing part to generate heat, make lubricant degradation, serious meeting makes motor gas-gap uneven, heating in winding, temperature rise increase, so as to
Motor efficiency is reduced, shortens motor service life.
Further illustrate technical scheme below in conjunction with the accompanying drawings and by embodiment.
As shown in figure 1, a kind of blower motor that one embodiment of the invention provides, including stator 3, rotation are arranged at institute
The rotor 2 in stator 3 is stated, the rotor 2 includes rotor permanent magnet and the axially extending armature spindle 11 along rotor permanent magnet, institute
State rotor permanent magnet to set close to one end of the armature spindle 11, the armature spindle 11 extends to be covered on the part of the stator 3
Provided with it is at least one be used for adjust the radial position of rotating shaft 11 radial direction magnetic bearing and it is at least one be used for adjust the rotating shaft
The axial magnetic bearing of 11 axial locations, the quantity of the radial direction magnetic bearing and the axial magnetic bearing can be wanted according to the difference of motor
Ask selection.
The blower motor, magnetic suspension bearing is respectively provided with armature spindle 11, such as radial direction magnetic bearing and axial magnetic bearing, led to
Magneticaction is crossed by rotor suspension, makes do not have Mechanical Contact between rotor and other any parts, so the motor is not
Mechanical wear be present, rotor can run to 150000RPM rotating speed, have without mechanical wear, energy consumption is low, noise is small, the life-span
It is long, without lubrication, without oily pollution the advantages that.
Specifically, impeller 10 is additionally provided with the armature spindle 11, the impeller 10 is arranged on the armature spindle 11
The other end away from the rotor permanent magnet, the radial direction magnetic bearing and the axial magnetic bearing be located at the impeller 10 with it is described
Between rotor permanent magnet.
The axial magnetic bearing comes with axial position sensor, for monitoring the armature spindle in position residing for axial direction
Put.In the present embodiment, the axial magnetic bearing is provided with two, and two axial magnetic bearings are respectively upper axial magnetic bearing
6 and lower axial magnetic bearing 7.The radial direction magnetic bearing is provided with two, and two radial direction magnetic bearings are respectively upper radial direction magnetic bearing 5
With lower radial direction magnetic bearing 8.Two axial magnetic bearings are respectively arranged between two radial direction magnetic bearings, and described in two
Axial magnetic bearing is arranged at intervals.
The hair-dryer also includes at least one for monitoring radial position biography of the armature spindle 11 in radial direction present position
Sensor, the corresponding radial direction magnetic bearing of each described radial-direction position sensor are set, and the radial-direction position sensor connects
Connect motor control panel 1.The periphery of the radial-direction position sensor is provided with the fixed plate for being used for fixing the radial-direction position sensor.
In the present embodiment, the radial-direction position sensor is two, and two radial-direction position sensors are respectively upper radial position
Sensor 4 and lower radial-direction position sensor 9, the upper radial-direction position sensor 4 corresponds to the upper radial direction magnetic bearing 5, described
Lower radial-direction position sensor 9 corresponds to the lower radial direction magnetic bearing 8, and two radial-direction position sensors are respectively arranged at two
The outside of the radial direction magnetic bearing.
The magnetic suspension bearing of the blower motor is coordinated by motor control panel to be controlled, and motor on startup, first passes through
The axial position sensor carried in radial-direction position sensor and axial magnetic bearing detects the position of armature spindle, will described turn
The deviation signal of axle transmits the controller into motor control panel, and controller is examined to radial-direction position sensor and axial position sensor
The position error signal measured carries out the computing of appropriateness, is converted into the control signal after computing after power of motor amplifier
Control electric current, control electric current produce magnetic force in magnetic suspension bearing, so as to drive armature spindle correction position, therefore, armature spindle energy
Reference position is enough quickly returning to, is finally determining that armature spindle is being arrived separately at after requiring position in axial direction and radial direction, motor starts to transport
Turn.
When the blower motor stalls, because rotatory inertia still can keep rotating certain time after rotor power-off, this
Shi Ruguo magnetic suspension bearings power off, and rotor disequilibrium, can cause motor damage, in this way, the motor need to be arranged in rotor
After stopping operating completely, then the power supply of magnetic suspension bearing coil is disconnected, preferred embodiment, the motor sets a charging
Power supply avoids rotor disequilibrium after motor power-off, so as to damage motor, the charging is electric with the coil power supply to magnetic suspension bearing
Persistently charged in electric motor starting in source.
The blower motor can adjust electromagnetic parameter by controller when in use, rotor is axially and radially being had foot
Enough magnetic pulls, because of the change of load the position of rotor will not be caused to change, ensure motor normal operation.
Preferably, in the present embodiment, radial direction magnetic bearing and axial magnetic bearing are made of metal material, preferably may be used
Using high-performance metal materials to reduce bearing volume, noise is reduced, improves electric efficiency；Duct design is cooling wind simultaneously
Road, impeller 12 cools down when rotating to bearing, so as to improve bearing life.
In the present embodiment, radial-direction position sensor is fixed in special fixed plate, and is set in fixed plate high-precision
The location structure of degree, make the position deviation of radial-direction position sensor detection rotor small, precision height.
The blower motor of the present invention, as a kind of brand-new blower motor structure, it is applied to hair-dryer so that this
The rotating speed of the hair-dryer of invention is high, and noise is small, long lifespan, greatly improves hair-dryer air output.
The technical principle of the present invention is described above in association with specific embodiment.These descriptions are intended merely to explain the present invention's
Principle, and limiting the scope of the invention can not be construed in any way.Based on explanation herein, the technology of this area
Personnel would not require any inventive effort the other embodiments that can associate the present invention, and these modes are fallen within
Within protection scope of the present invention.
Claims (11)
1. a kind of blower motor, including stator (3), rotate the rotor (2) being arranged in the stator (3), it is characterised in that
The rotor (3) includes rotor permanent magnet and axially disposed armature spindle, is arranged with the armature spindle (11) at least one
For the radial position that adjusts the armature spindle (11) radial direction magnetic bearing and at least one be used to adjust armature spindle (11) axially
The axial magnetic bearing of position, wherein, the rotor permanent magnet is disposed in proximity to the end of the armature spindle (11), the radial direction magnetic
Bearing and the axial magnetic bearing are arranged at the armature spindle (11) from one end that the rotor permanent magnet stretches out.
2. blower motor according to claim 1, it is characterised in that be also equipped with impeller on the armature spindle (11)
(10), the impeller (10) is arranged at the other end away from the rotor permanent magnet, the radial direction on the armature spindle (11)
Magnetic bearing and the axial magnetic bearing are between the impeller (10) and the rotor permanent magnet.
3. blower motor according to claim 1, it is characterised in that the axial magnetic bearing has been wholely set axial position
Sensor is put, for monitoring the armature spindle in axial present position.
4. according to the blower motor described in claim 1,2 or 3, it is characterised in that also be used to monitor institute including at least one
Radial-direction position sensor of the armature spindle (11) in radial direction present position is stated, the corresponding institute of each described radial-direction position sensor
State radial direction magnetic bearing setting, the radial-direction position sensor connection motor control panel (1).
5. blower motor according to claim 4, it is characterised in that the periphery of the radial-direction position sensor, which is provided with, to be used
In the fixed plate of the fixation radial-direction position sensor.
6. blower motor according to claim 4, it is characterised in that the radial direction magnetic bearing is provided with two, the axle
Magnetic bearing is provided with two, two axial magnetic bearings are respectively arranged between two radial direction magnetic bearings, and two
The axial magnetic bearing is arranged at intervals.
7. blower motor according to claim 6, it is characterised in that two axial magnetic bearings are respectively upper axial direction
Magnetic bearing (6) and lower axial magnetic bearing (7).
8. blower motor according to claim 6, it is characterised in that the radial-direction position sensor is two, two
The radial-direction position sensor is respectively arranged at the outside of two radial direction magnetic bearings.
9. blower motor according to claim 8, it is characterised in that two radial direction magnetic bearings are respectively upper radial direction
Magnetic bearing (5) and lower radial direction magnetic bearing (8), two radial-direction position sensors be respectively upper radial-direction position sensor (4) and
Lower radial-direction position sensor (9), the upper radial-direction position sensor (4) correspond to the upper radial direction magnetic bearing (5), the lower footpath
Correspond to the lower radial direction magnetic bearing (8) to position sensor (9).
10. blower motor according to claim 1, it is characterised in that the blower motor sets an individually control
The power supply of the axial magnetic bearing and the radial direction magnetic bearing.
A kind of 11. hair-dryer of the blower motor with described in any one of claim 1~10.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710734235.7A CN107346924B (en) | 2017-08-24 | 2017-08-24 | Blower motor and blower |
| PCT/CN2017/109024 WO2019037265A1 (en) | 2017-08-24 | 2017-11-02 | Hair dryer motor and hair dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710734235.7A CN107346924B (en) | 2017-08-24 | 2017-08-24 | Blower motor and blower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107346924A true CN107346924A (en) | 2017-11-14 |
| CN107346924B CN107346924B (en) | 2021-12-07 |
Family
ID=60257574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710734235.7A Active CN107346924B (en) | 2017-08-24 | 2017-08-24 | Blower motor and blower |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107346924B (en) |
| WO (1) | WO2019037265A1 (en) |
Citations (10)
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| KR20020000384A (en) * | 2000-06-24 | 2002-01-05 | 이형도 | Thrust magnetic bearing motor |
| KR20040009157A (en) * | 2002-07-22 | 2004-01-31 | 삼성전기주식회사 | Motor having thrust magnetic bearing |
| CN1666026A (en) * | 2003-07-04 | 2005-09-07 | 三菱电机株式会社 | Magnetic bearing device |
| JP2008045586A (en) * | 2006-08-11 | 2008-02-28 | Ntn Corp | Motor integrated magnetic bearing device |
| CN102979816A (en) * | 2011-09-05 | 2013-03-20 | 株式会社安川电机 | Main shaft device |
| CN103023184A (en) * | 2011-09-20 | 2013-04-03 | 德昌电机(深圳)有限公司 | High-speed airflow generating device and brushless motor thereof |
| CN205217182U (en) * | 2015-12-08 | 2016-05-11 | 中冶焦耐工程技术有限公司 | High -speed atomizer based on magnetic suspension bearing PMSM |
| CN106505780A (en) * | 2016-12-15 | 2017-03-15 | 南通金驰机电有限公司 | A kind of magnetic suspension permanent magnet direct-drive high-speed motor |
| CN206397654U (en) * | 2016-12-24 | 2017-08-11 | 重庆宙盾新能源技术开发有限公司 | Magnetic suspending wind turbine generator group |
| CN207353983U (en) * | 2017-08-24 | 2018-05-11 | 莱克电气股份有限公司 | A kind of blower motor and hair-dryer |
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| CN1945940A (en) * | 2006-07-18 | 2007-04-11 | 沈阳工业大学 | Integrated permanent magnet rotor magnetic suspension high speed motor |
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| CN107332389B (en) * | 2017-08-24 | 2021-09-14 | 莱克电气股份有限公司 | Blower motor and blower |
| CN207353982U (en) * | 2017-08-24 | 2018-05-11 | 莱克电气股份有限公司 | A kind of blower motor and hair-dryer |
-
2017
- 2017-08-24 CN CN201710734235.7A patent/CN107346924B/en active Active
- 2017-11-02 WO PCT/CN2017/109024 patent/WO2019037265A1/en active Application Filing
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020000384A (en) * | 2000-06-24 | 2002-01-05 | 이형도 | Thrust magnetic bearing motor |
| KR20040009157A (en) * | 2002-07-22 | 2004-01-31 | 삼성전기주식회사 | Motor having thrust magnetic bearing |
| CN1666026A (en) * | 2003-07-04 | 2005-09-07 | 三菱电机株式会社 | Magnetic bearing device |
| JP2008045586A (en) * | 2006-08-11 | 2008-02-28 | Ntn Corp | Motor integrated magnetic bearing device |
| CN102979816A (en) * | 2011-09-05 | 2013-03-20 | 株式会社安川电机 | Main shaft device |
| CN103023184A (en) * | 2011-09-20 | 2013-04-03 | 德昌电机(深圳)有限公司 | High-speed airflow generating device and brushless motor thereof |
| CN205217182U (en) * | 2015-12-08 | 2016-05-11 | 中冶焦耐工程技术有限公司 | High -speed atomizer based on magnetic suspension bearing PMSM |
| CN106505780A (en) * | 2016-12-15 | 2017-03-15 | 南通金驰机电有限公司 | A kind of magnetic suspension permanent magnet direct-drive high-speed motor |
| CN206397654U (en) * | 2016-12-24 | 2017-08-11 | 重庆宙盾新能源技术开发有限公司 | Magnetic suspending wind turbine generator group |
| CN207353983U (en) * | 2017-08-24 | 2018-05-11 | 莱克电气股份有限公司 | A kind of blower motor and hair-dryer |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019037265A1 (en) | 2019-02-28 |
| CN107346924B (en) | 2021-12-07 |
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