CN107516990A - A kind of motor of dust collector and dust catcher - Google Patents
A kind of motor of dust collector and dust catcher Download PDFInfo
- Publication number
- CN107516990A CN107516990A CN201710734469.1A CN201710734469A CN107516990A CN 107516990 A CN107516990 A CN 107516990A CN 201710734469 A CN201710734469 A CN 201710734469A CN 107516990 A CN107516990 A CN 107516990A
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- China
- Prior art keywords
- motor
- dust collector
- rotor
- armature spindle
- radial
- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
- H02K29/06—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Electric Suction Cleaners (AREA)
Abstract
The present invention relates to cleaner technology field, more particularly to a kind of high-speed brushless motor of dust collector and dust catcher using magnetic suspension bearing.A kind of motor of dust collector of the present invention, including stator and rotor, motor of dust collector is provided with the magnetic suspension bearing being suspended on rotor in stator, rotor includes armature spindle, magnetic suspension bearing includes being arranged at one end of armature spindle, the upper axial magnetic bearing for being adjusted axially rotor shaft position, and upper axial magnetic bearing opens up fluted, and armature spindle is provided with the projection being placed in groove, by groove and male cooperation, to limit the skew of armature spindle vertically.The dust catcher of the present invention includes above-mentioned motor of dust collector, and motor of dust collector includes a controller, and controller actively adjusts the speed of the rotor of motor of dust collector according to the load in dust catcher.The motor of dust collector and dust catcher, the problem of existing motor can be overcome, which to be limited by bearing, can not improve rotating speed, operating is reliable, greatly extends service life, improves operating efficiency.
Description
Technical field
The present invention relates to cleaner technology field, more particularly to a kind of high-speed brushless dust catcher electricity using magnetic suspension bearing
Machine and the dust catcher with motor of dust collector.
Background technology
Motor of dust collector require small size and it is high-revolving simultaneously, ensure low noise.At present, domestic and international main suction
Dirt device product mostly uses series excited machine or brushed DC motor, in order to realize the miniaturization of volume and lightweight, meets simultaneously
Bigger suction effect, it is often necessary to improve rotating speed.However, this kind of motor is usually by casing, permanent-magnet steel, carbon brush, rotor
With rotor windings form, its in the running, because that can produce high-speed friction between carbon brush and commutator while make rotor windings continuous
Switching electric current, it result in and spark is easily produced between carbon brush and commutator, will cause if rotating speed is too high between carbon brush and commutator
Heavy wear, so as to influence life of product, or even burn rapidly.According to conventional brushless motor as motor of dust collector, in height
Under rotating speed, its bearing, so as to cause bearing damage, makes maintenance and replacing because mechanical friction causes energy loss, temperature rise
Frequently, causing existing brushless electric machine, it can not bear excessive speeds so that and rotating speed maximum can only accomplish 80000RPM or so,
Ultrahigh rotating speed 150000RPM high-performance can not be realized.
The content of the invention
It is an object of the invention to propose a kind of motor of dust collector and dust catcher, existing motor can be overcome to be limited by bearing
The problem of system can not improve rotating speed, operating is reliable, greatly extends service life, improves operating efficiency.
To use following technical scheme up to this purpose, the present invention：
A kind of motor of dust collector, including stator and rotor, the motor of dust collector are described provided with the rotor is suspended on
Magnetic suspension bearing in stator, the rotor include armature spindle, and the magnetic suspension bearing includes being arranged at the one of the armature spindle
End, the upper axial magnetic bearing for being adjusted axially the rotor shaft position, the upper axial magnetic bearing open up it is fluted, described turn
Sub- axle is provided with the projection being placed in the groove, by the groove and the male cooperation, to limit the armature spindle
Skew vertically.
As a kind of preferred embodiment of above-mentioned motor of dust collector, the raised shaft shoulder or axle sleeve for annular, the groove
For annular groove.
As a kind of preferred embodiment of above-mentioned motor of dust collector, described rotating shaft one end is provided with impeller, the upper axial magnetic
Bearing is located at one end that the armature spindle does not install impeller.
As a kind of preferred embodiment of above-mentioned motor of dust collector, one end passes the armature spindle provided with an axial location vertically
Sensor, the upper axial magnetic bearing are disposed in proximity to the side of the axial position sensor.
As a kind of preferred embodiment of above-mentioned motor of dust collector, the rotor, which also includes being arranged on the armature spindle, to be turned
Sub- permanent magnet, the rotor permanent magnet both sides are respectively provided with the radial direction magnetic bearing of rotor shaft position described in radiai adjustment.
As a kind of preferred embodiment of above-mentioned motor of dust collector, the upper axial magnetic bearing be located at the radial direction magnetic bearing with
Between axial position sensor.
As a kind of preferred embodiment of above-mentioned motor of dust collector, two radial direction magnetic bearings are respectively with the rotor permanent magnet
It is symmetrical arranged centered on body.
As a kind of preferred embodiment of above-mentioned motor of dust collector, in addition to two are used to monitor the armature spindle in radial direction institute
Locate the radial-direction position sensor of position, the corresponding radial direction magnetic bearing of each described radial-direction position sensor is set, institute
State radial-direction position sensor connection motor control panel.
As a kind of preferred embodiment of above-mentioned motor of dust collector, two radial direction magnetic bearings are arranged at two radial directions
Between position sensor, and it is located at the both sides of the rotor permanent magnet respectively.
As a kind of preferred embodiment of above-mentioned motor of dust collector, two radial direction magnetic bearings are respectively to be arranged at described turn
The upper radial direction magnetic bearing at the both ends of sub- permanent magnet and lower radial direction magnetic bearing, two radial-direction position sensors are respectively upper radial direction
Position sensor and lower radial-direction position sensor, the upper radial-direction position sensor corresponds to the upper radial direction magnetic bearing, described
Lower radial-direction position sensor corresponds to the lower radial direction magnetic bearing.
As a kind of preferred embodiment of above-mentioned motor of dust collector, the motor of dust collector sets one individually to control the magnetcisuspension
The power supply that floating axle is held.
A kind of dust catcher with the motor of dust collector, the motor of dust collector include a controller, the controller
The speed of the rotor of the motor of dust collector is actively adjusted according to the load in the dust catcher.
Beneficial effects of the present invention are：
The motor of dust collector of the present invention, mainly for being used for the motor of dust catcher in the prior art due to the limitation of bearing,
The problem of rotating speed can not be improved and propose, it is changed into non-by using magnetic suspension principle, by the structure of the mechanical contact of routine
Mechanical Contact it is hanging, in armature spindle rotation process, its do not contacted with magnetic suspension bearing and avoid produce abrasion, so as to
The high speed demand of dust catcher is well adapted for, the problem of existing motor can be overcome, which to be limited by bearing, can not improve rotating speed,
Operating is reliable, greatly extends service life, improves operating efficiency.
Brief description of the drawings
Fig. 1 is the cross-sectional view of the motor of dust collector of the present invention；
Fig. 2 is close-up schematic view of the motor of dust collector at I in Fig. 1.
In figure：1- motor control panels；2- axial position sensors；The upper axial magnetic bearings of 3-；The upper radial-direction position sensors of 4-；
The upper radial direction magnetic bearings of 5-；6- stators；7- rotors；Radial direction magnetic bearing under 8-；Radial-direction position sensor under 9-；10- impellers；11- turns
Sub- 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.Mechanical friction not only increases the frictional resistance of rotor, makes moving component
Abrasion, mechanical oscillation and noise are produced, and part can be caused to generate heat, make lubricant degradation, serious meeting makes motor gas
Gap is uneven, heating in winding, temperature rise increase, so as to reduce motor efficiency, shortens motor service life.
Further illustrate technical scheme below in conjunction with the accompanying drawings and by embodiment.
As shown in Figure 1 and Figure 2, a kind of motor of dust collector that one embodiment of the invention provides, including stator 6, with stator 6
Coaxial and rotation is arranged at the rotor 7 in the stator 6, and the rotor 7 includes rotor permanent magnet and the axle along rotor permanent magnet
To the armature spindle 11 for outwards passing the stator 6, the motor of dust collector is provided with and the rotor 7 is suspended in the stator 6
Magnetic suspension bearing.Specifically, the magnetic suspension bearing includes being arranged at the axial both ends of the armature spindle 11, turned for adjusting
At least one pair of radial direction magnetic bearing of the sub- radial position of axle 11 and for adjusting at least one of the axial location of armature spindle 11
Axial magnetic bearing.The motor of dust collector, magnetic suspension bearing is set at the both ends of armature spindle 11, using magneticaction by rotor suspension
Get up, make there is no Mechanical Contact between rotor and magnetic suspension bearing, so mechanical wear is not present in the motor, rotor can be transported
Row to 150000RPM rotating speed, have without mechanical wear, energy consumption is low, noise is small, long lifespan, without lubrication, it is excellent without oily pollution etc.
Point.
In present embodiment, the armature spindle 11 is circumferentially provided with projection, and the upper axial magnetic bearing 3 is provided with to recessed
Groove, the raised shaft shoulder or axle sleeve for annular, the groove is annular groove.The projection of the armature spindle 11 is contained on described
In the groove of axial magnetic bearing, to limit the movement of armature spindle 11 in the axial direction, meanwhile, the groove is within the specific limits
Armature spindle can be limited to move in radial directions.
One end of the armature spindle 11 is provided with an impeller 10, and the other end is provided with an axial position to the armature spindle 11 vertically
Sensor 2 is put, the axial position sensor 2 is coaxially disposed with the armature spindle 11, and the axial position sensor 2 connects electricity
Machine control panel 1.The upper axial magnetic bearing 3 is disposed in proximity to the side of the axial position sensor 2, the upper axial magnetic axis
3 are held between the radial direction magnetic bearing and axial position sensor 2.Wherein, the axial position sensor 2 is used to coordinate institute
Axial magnetic bearing is stated to adjust the position of armature spindle 11 in the axial direction.
Two radial direction magnetic bearings are respectively arranged at the both sides of the rotor permanent magnet of the rotor 7, in order that rotor 7 is outstanding
Floating, in present embodiment, two radial direction magnetic bearings are symmetrical arranged centered on the rotor permanent magnet of the rotor 7 respectively,
It is relatively reliable so as to two radial direction magnetic bearing stress equalizations.
The motor of dust collector also includes two and is used to monitor radial position 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, the radial-direction position sensor
Connect motor control panel 1.Specifically, two radial direction magnetic bearings are respectively the upper footpath at the both ends for being arranged at the armature spindle 11
To magnetic bearing 3 and lower radial direction magnetic bearing 8, two radial-direction position sensors are respectively upper radial-direction position sensor 4 and lower footpath
To position sensor 9, the upper radial-direction position sensor 4 corresponds to the upper radial direction magnetic bearing 3, the lower radial position sensing
Device 9 corresponds to the lower radial direction magnetic bearing 8.Two radial direction magnetic bearings be arranged at two radial-direction position sensors it
Between, and it is located at the both sides of the rotor permanent magnet respectively.Wherein, radial-direction position sensor is used to coordinate radial direction magnetic bearing to adjust
Armature spindle is in the position of radial direction.
The magnetic suspension bearing of the motor of dust collector is coordinated by motor control panel to be controlled, and motor on startup, first passes through
Radial-direction position sensor and axial position sensor detect the position of armature spindle, and the deviation signal of the rotating shaft is transmitted into electricity
The controller of machine control panel, the position error signal that controller detects to radial-direction position sensor and axial position sensor enter
The computing of row appropriateness, is converted into control electric current, control electric current exists after power of motor amplifier by the control signal after computing
Magnetic force is produced in magnetic suspension bearing, so as to drive armature spindle correction position, therefore, armature spindle can be quickly returning to reference position,
Finally determining that armature spindle is being arrived separately at after requiring position in axial direction and radial direction, motor starts running.
When the motor of dust collector 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 motor of dust collector 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.
During dust reserves difference in dust catcher, the load of motor can change, and traditional motor works as dust catcher
When interior dust is more and more, the load of motor can be increasing, causes the rotating speed of motor to decline, causes the vacuum of dust catcher
Reduce, suction is gradually reduced, and motor of dust collector of the present invention is in the running, and controller can be according to the adjustment of load rotor of dust catcher
Rotating speed, while load rise improve rotor rotating speed, because of the change of load the vacuum of dust catcher will not be caused to send out
Changing, ensure the suction of dust catcher.
The present invention can adjust electromagnetic parameter by controller, make rotor in axially and radially enough magnetic pulls, only
In the case that one axial magnetic bearing is set, groove is opened up on axial magnetic bearing, is set in the periphery of armature spindle 11 and is placed in institute
The projection in groove is stated, rotor can be limited in axial dipole field by groove and male cooperation.It is simple in construction, save element and material
Material, reduces cost.
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.
Preferably, in the present embodiment, radial-direction position sensor is fixed in special fixed plate, and is set in fixed plate
High-precision location structure is put, makes the position deviation of radial-direction position sensor detection rotor small, precision height.
The motor of dust collector of the present invention, as a kind of brand-new brushless motor of dust collector structure, it is applied to dust catcher, made
The rotating speed height of dust catcher of the invention is obtained, suction is big, and noise is small, long lifespan.
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 (12)
1. a kind of motor of dust collector, including stator (6) and rotor (7), it is characterised in that the motor of dust collector is provided with by described in
Rotor (7) is suspended on the magnetic suspension bearing in the stator (6), and the rotor (7) includes armature spindle (11), the magnetic suspension shaft
Contract and include the one end for being arranged at the armature spindle (11), the upper axial magnetic bearing for being adjusted axially the armature spindle (11) position
(3), the upper axial magnetic bearing (3) opens up fluted, and the armature spindle (11) is provided with the projection being placed in the groove,
By the groove and the male cooperation, to limit the skew of the armature spindle (11) vertically.
2. motor of dust collector according to claim 1, it is characterised in that the raised shaft shoulder or axle sleeve for annular, institute
It is annular groove to state groove.
3. motor of dust collector according to claim 1, it is characterised in that described rotating shaft (11) one end is provided with impeller
(10), the upper axial magnetic bearing (3) is located at one end that the armature spindle (11) does not install impeller (10).
4. motor of dust collector according to claim 1, it is characterised in that one end is provided with one to the armature spindle (11) vertically
Axial position sensor (2), the upper axial magnetic bearing (3) are disposed in proximity to the side of the axial position sensor (2).
5. motor of dust collector according to claim 4, it is characterised in that the rotor (7) also includes being arranged at described turn
Rotor permanent magnet on sub- axle (11), the rotor permanent magnet both sides are respectively provided with armature spindle described in radiai adjustment (11) position
The radial direction magnetic bearing put.
6. motor of dust collector according to claim 5, it is characterised in that the upper axial magnetic bearing (3) is located at the footpath
To between magnetic bearing and axial position sensor (2).
7. motor of dust collector according to claim 5, it is characterised in that two radial direction magnetic bearings are respectively with described turn
It is symmetrical arranged centered on sub- permanent magnet.
8. motor of dust collector according to claim 5, it is characterised in that be also used to monitor the armature spindle including two
(11) in the radial-direction position sensor of radial direction present position, the corresponding radial direction magnetic of each described radial-direction position sensor
Bearing is set, the radial-direction position sensor connection motor control panel (1).
9. motor of dust collector according to claim 8, it is characterised in that two radial direction magnetic bearings are arranged at two institutes
Between stating radial-direction position sensor, and it is located at the both sides of the rotor permanent magnet respectively.
10. motor of dust collector according to claim 8, it is characterised in that two radial direction magnetic bearings are respectively to set
Upper radial direction magnetic bearing (3) and lower radial direction magnetic bearing (8) in the both ends of the rotor permanent magnet, two radial position sensings
Device is respectively upper radial-direction position sensor (4) and lower radial-direction position sensor (9), and the upper radial-direction position sensor (4) is corresponding
In the upper radial direction magnetic bearing (3), the lower radial-direction position sensor (9) corresponds to the lower radial direction magnetic bearing (8).
11. motor of dust collector according to claim 1, it is characterised in that the motor of dust collector sets an individually control
The power supply of the magnetic suspension bearing.
12. a kind of dust catcher of the motor of dust collector with described in any one of claim 1~11, the motor of dust collector include
One controller, the controller actively adjust the speed of the rotor of the motor of dust collector according to the load in the dust catcher
Degree.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710734469.1A CN107516990B (en) | 2017-08-24 | 2017-08-24 | Dust collector motor and dust collector |
| PCT/CN2018/091618 WO2019037525A1 (en) | 2017-08-24 | 2018-06-15 | Vacuum cleaner motor and vacuum cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710734469.1A CN107516990B (en) | 2017-08-24 | 2017-08-24 | Dust collector motor and dust collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107516990A true CN107516990A (en) | 2017-12-26 |
| CN107516990B CN107516990B (en) | 2021-09-14 |
Family
ID=60723804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710734469.1A Active CN107516990B (en) | 2017-08-24 | 2017-08-24 | Dust collector motor and dust collector |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107516990B (en) |
| WO (1) | WO2019037525A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019037523A1 (en) * | 2017-08-24 | 2019-02-28 | 莱克电气股份有限公司 | Vacuum cleaner motor and vacuum cleaner |
| WO2019037525A1 (en) * | 2017-08-24 | 2019-02-28 | 莱克电气股份有限公司 | Vacuum cleaner motor and vacuum cleaner |
| CN110165824A (en) * | 2019-05-21 | 2019-08-23 | 深圳麦格动力技术有限公司 | Magnetic suspension motor |
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| KR20040009157A (en) * | 2002-07-22 | 2004-01-31 | 삼성전기주식회사 | Motor having thrust magnetic bearing |
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| 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 |
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| CN102437798A (en) * | 2011-10-19 | 2012-05-02 | 上海大学 | High speed electric spindle supported by all-permanent magnet bearing |
| CN105642462A (en) * | 2015-12-31 | 2016-06-08 | 天津嘉格机电有限公司 | Rotary atomizer based on magnetic bearings |
| CN107516990B (en) * | 2017-08-24 | 2021-09-14 | 莱克电气股份有限公司 | Dust collector motor and dust collector |
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2017
- 2017-08-24 CN CN201710734469.1A patent/CN107516990B/en active Active
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2018
- 2018-06-15 WO PCT/CN2018/091618 patent/WO2019037525A1/en active Application Filing
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| 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 |
| CN101243957A (en) * | 2007-02-07 | 2008-08-20 | 杨泰和 | Low-noise energy-saving dust aspirator with loaded regulate and control electrical energy |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2019037523A1 (en) * | 2017-08-24 | 2019-02-28 | 莱克电气股份有限公司 | Vacuum cleaner motor and vacuum cleaner |
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| CN110165824A (en) * | 2019-05-21 | 2019-08-23 | 深圳麦格动力技术有限公司 | Magnetic suspension motor |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019037525A1 (en) | 2019-02-28 |
| CN107516990B (en) | 2021-09-14 |
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