CN107370322A - 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
- CN107370322A CN107370322A CN201710734233.8A CN201710734233A CN107370322A CN 107370322 A CN107370322 A CN 107370322A CN 201710734233 A CN201710734233 A CN 201710734233A CN 107370322 A CN107370322 A CN 107370322A
- Authority
- CN
- China
- Prior art keywords
- motor
- dust collector
- magnetic bearing
- rotor
- 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
- 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
- H02K5/163—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at only one end of the rotor
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Magnetic Bearings And Hydrostatic Bearings (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, the rotor being arranged in the stator is rotated, and the motor of dust collector is provided with the magnetic suspension bearing rotor being suspended in the stator, and the rotor of the motor of dust collector does not contact when operating with any object.A kind of dust catcher with above-mentioned motor of dust collector of the present invention, the motor of dust collector include a controller, and the controller actively adjusts the speed of the rotor of the motor of dust collector according to the load in the 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 using the motor.
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 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 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：
On the one hand, the present invention provides a kind of motor of dust collector, including stator, rotates the rotor being arranged in the stator,
The motor of dust collector, which is provided with, is suspended on the rotor magnetic suspension bearing in the stator, the motor of dust collector it is described
Rotor does not contact when operating with any object.
As a kind of preferred embodiment of above-mentioned motor of dust collector, the rotor include rotor permanent magnet and along the rotor forever
The axially arranged armature spindle of magnet, the magnetic suspension bearing are used for rotor shaft position described in radiai adjustment including at least one pair of
Radial direction magnetic bearing and at least one pair of axial magnetic bearing for being used to be adjusted axially the rotor shaft position.
As a kind of preferred embodiment of above-mentioned motor of dust collector, radial direction magnetic bearing described in each pair is 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, axial magnetic bearing described in each pair is 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, the radial direction magnetic bearing axial magnetic bearing is close to institute
State rotor permanent magnet setting.
As a kind of preferred embodiment of above-mentioned motor of dust collector, in addition at least one pair of is used to monitor the armature spindle in footpath
To the radial-direction position sensor of present position, a pair of radial-direction position sensors and a pair of radial direction magnetic bearings correspond
Set, the radial-direction position sensor connects motor control panel.
As a kind of preferred embodiment of above-mentioned motor of dust collector, radial-direction position sensor described in each pair is arranged at corresponding
A pair of radial direction magnetic bearings between, and be located at the rotor permanent magnet both sides respectively.
As a kind of preferred embodiment of above-mentioned motor of dust collector, radial direction magnetic bearing described in each pair includes being arranged at the rotor
The upper radial direction magnetic bearing of the both sides of permanent magnet and lower radial direction magnetic bearing, radial-direction position sensor described in each pair include upper radial position
Sensor and lower radial-direction position sensor, the upper radial-direction position sensor correspond to the upper radial direction magnetic bearing, the lower footpath
Correspond to the lower radial direction magnetic bearing to position sensor.
As a kind of preferred embodiment of above-mentioned motor of dust collector, in addition to for monitoring the armature spindle in position residing for axial direction
The axial position sensor put, the axial position sensor connect motor control panel.
As a kind of preferred embodiment of above-mentioned motor of dust collector, one end of the armature spindle is provided with an impeller, the axle
The other end of the remote installation impeller of the armature spindle is arranged to position sensor.
As a kind of preferred embodiment of above-mentioned motor of dust collector, axial magnetic bearing described in each pair includes being arranged at the rotor
The upper axial magnetic bearing of the both sides of permanent magnet and lower axial magnetic bearing, the axial position sensor is close to the upper axial magnetic axis
Hold and a setting in the lower axial 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.
On the other hand, the present invention also provides a kind of dust catcher with the motor of dust collector, the motor of dust collector bag
A controller is included, the controller actively adjusts the rotor of the motor of dust collector according to the load in the dust catcher
Speed.
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, thus rotor does not contact with any object in the running, is vacantly set completely under the magneticaction of magnetic suspension bearing
Put, it is possible to prevente effectively from producing abrasion, so as to be well adapted for the high speed demand of dust catcher, existing motor can be overcome
The problem of can not improving rotating speed is limited by bearing, 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.
In figure：1- motor control panels；2- axial position sensors；The upper axial magnetic bearings of 3-；The upper radial direction magnetic bearings of 4-；On 5-
Radial-direction position sensor；6- stators；7- rotors；Radial-direction position sensor under 8-；Radial direction magnetic bearing under 9-；Axial magnetic axis under 10-
Hold；11- armature spindles；12- impellers.
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 makes component wear, produces mechanical oscillation and noise, and
And part can be caused to generate heat, and making lubricant degradation, serious meeting makes motor gas-gap uneven, heating in winding, temperature rise increase,
So as to reduce motor efficiency, shorten motor service life.
1 and technical scheme is further illustrated by embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of motor of dust collector that one embodiment of the invention provides, including stator 6, it is coaxial with stator 6
And the rotor 7 being arranged in the stator 6 is rotated, the motor of dust collector is provided with and the rotor 7 is suspended in the stator 6
Magnetic suspension bearing, the rotor 7 of the motor of dust collector do not contact when operating with any object.
The structure of the mechanical contact of routine is changed into on-mechanical contact, thus rotor 7 by it by using magnetic suspension principle
Do not contacted in the running with any object, it is completely hanging under the magneticaction of magnetic suspension bearing to set, it is possible to prevente effectively from production
Raw abrasion, so as to be well adapted for the high speed demand of dust catcher, rotor can run to 150000RPM rotating speed, tool
Whether there is mechanical wear, energy consumption are low, noise is small, long lifespan, without lubrication, without oily pollution the advantages that, can overcome existing motor by
The problem of can not improving rotating speed to bearing limitation, operating is reliable, greatly extends service life, improves operating efficiency.
Specifically, the rotor 7 includes rotor permanent magnet and the stator 6 of axially penetrating through along the rotor permanent magnet
Armature spindle 11, the magnetic suspension bearing include at least one pair of be used for the radial direction magnetic bearing of the position of armature spindle 11 described in radiai adjustment and
At least one pair of is used for the axial magnetic bearing for being adjusted axially the position of armature spindle 11.Radial direction magnetic bearing is respectively arranged at described in each pair
The both sides of the rotor permanent magnet of the rotor 7, axial magnetic bearing described in each pair are also respectively arranged at the rotor of the rotor 7
The both sides of permanent magnet, embodiment of the present invention, axial magnetic bearing is respectively with described described in radial direction magnetic bearing described in each pair and each pair
It is symmetrical arranged centered on the rotor permanent magnet of rotor 7, and the radial direction magnetic bearing axial magnetic bearing is closer to institute
Rotor permanent magnet is stated, so as to which two radial direction magnetic bearing stress reach balanced.
The motor of dust collector also includes at least one pair of and is used to monitor the armature spindle 11 in the radial direction position of radial direction present position
Sensor is put, a pair of radial-direction position sensors and a pair of radial direction magnetic bearings are corresponded and set, described in each pair radially
Position sensor is arranged between the radial direction magnetic bearing of corresponding a pair, and is located at the rotor permanent magnet two respectively
Side, the radial-direction position sensor connect motor control panel 1.Specifically, radial direction magnetic bearing described in each pair includes may be disposed at institute
The upper radial direction magnetic bearing 4 of the both sides of rotor permanent magnet and lower radial direction magnetic bearing 9 are stated, radial-direction position sensor described in each pair includes upper
Radial-direction position sensor 5 and lower radial-direction position sensor 8, the upper radial-direction position sensor 5 correspond to the upper radial direction magnetic axis
4 settings are held, the lower radial-direction position sensor 8 is set corresponding to the lower radial direction magnetic bearing 9.Wherein, radial-direction position sensor
Its position diametrically after electric motor starting of armature spindle 11 is adjusted for coordinating radial direction magnetic bearing.
The motor of dust collector also includes being used to monitor axial position sensor of the armature spindle 11 in axial present position
2, one end that the armature spindle 11 stretches out is provided with an impeller 12, and the axial position sensor 2 is arranged at the rotor
The other end of the remote installation impeller 12 of axle 11, the axial position sensor 2 connect motor control panel 1.Specifically,
Axial magnetic bearing described in each pair includes being arranged at the upper axial magnetic bearing 3 of the both sides of the rotor permanent magnet and lower axial magnetic bearing
10, one that the axial position sensor 2 can be in the upper axial magnetic bearing 3 and the lower axial magnetic bearing 10 sets
Put.Wherein, axial position sensor is used to coordinating axial magnetic bearing to adjust displacement that armature spindle 11 occurs in axial location, inclined
Turn, vibrate etc..
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, need to set one can be for the motor
After rotor stops operating completely, then the power supply of magnetic suspension bearing coil is disconnected, preferred embodiment, the motor of dust collector
A charge power supply is set rotor disequilibrium after motor power-off to be avoided, with the coil power supply to magnetic suspension bearing so as to damage electricity
Machine, the charge power supply persistently charge in electric motor starting.
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.
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 (13)
1. a kind of motor of dust collector, including stator (6), rotate the rotor (7) being arranged in the stator (6), it is characterised in that
The motor of dust collector is provided with the magnetic suspension bearing being suspended on the rotor (7) in the stator (6), the motor of dust collector
The rotor (7) operating when do not contacted with any object.
2. motor of dust collector according to claim 1, it is characterised in that the rotor includes rotor permanent magnet and along described
The axially arranged armature spindle (11) of rotor permanent magnet, the magnetic suspension bearing include at least one pair of and are used to turn described in radiai adjustment
The radial direction magnetic bearing of sub- axle (11) position and at least one pair of axial magnetic bearing for being used to be adjusted axially the armature spindle (11) position.
3. motor of dust collector according to claim 2, it is characterised in that radial direction magnetic bearing described in each pair is respectively with described turn
It is symmetrical arranged centered on sub- permanent magnet.
4. motor of dust collector according to claim 2, it is characterised in that axial magnetic bearing described in each pair is respectively with described turn
It is symmetrical arranged centered on sub- permanent magnet.
5. motor of dust collector according to claim 1, it is characterised in that the radial direction magnetic bearing axial magnetic bearing
Set close to the rotor permanent magnet.
6. according to the motor of dust collector described in claim 2,3,4 or 5, it is characterised in that also be used to monitor including at least one pair of
The armature spindle (11) radial direction present position radial-direction position sensor, described in a pair of radial-direction position sensors and a pair
Radial direction magnetic bearing, which corresponds, to be set, the radial-direction position sensor connection motor control panel (1).
7. motor of dust collector according to claim 6, it is characterised in that radial-direction position sensor described in each pair be arranged at
Between its corresponding a pair of described radial direction magnetic bearing, and it is located at the rotor permanent magnet both sides respectively.
8. motor of dust collector according to claim 6, it is characterised in that radial direction magnetic bearing described in each pair includes being arranged at institute
State the upper radial direction magnetic bearing (4) and lower radial direction magnetic bearing (9) of the both sides of rotor permanent magnet, radial-direction position sensor bag described in each pair
Radial-direction position sensor (5) and lower radial-direction position sensor (8) are included, the upper radial-direction position sensor (5) corresponds to described
Upper radial direction magnetic bearing (4), the lower radial-direction position sensor (8) correspond to the lower radial direction magnetic bearing (9).
9. according to the motor of dust collector described in claim 2,3,4 or 5, it is characterised in that also include being used to monitor the rotor
Axle (11) is in the axial position sensor (2) of axial present position, axial position sensor (2) the connection motor control panel
(1)。
10. motor of dust collector according to claim 9, it is characterised in that one end of the armature spindle (11) is provided with one
Impeller (12), the axial position sensor (2) are arranged at the another of the remote installation impeller (12) of the armature spindle (11)
One end.
11. motor of dust collector according to claim 9, it is characterised in that axial magnetic bearing described in each pair includes being arranged at
The upper axial magnetic bearing (3) and lower axial magnetic bearing (10) of the both sides of the rotor permanent magnet, the axial position sensor (2)
A setting in the upper axial magnetic bearing (3) and the lower axial magnetic bearing (10).
12. 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.
A kind of 13. dust catcher of the motor of dust collector with described in any one of claim 1~12, it is characterised in that the suction
Dirt device motor includes a controller, and the controller actively adjusts the dust catcher electricity according to the load in the dust catcher
The speed of the rotor of machine.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710734233.8A CN107370322B (en) | 2017-08-24 | 2017-08-24 | Dust collector motor and dust collector |
| PCT/CN2018/091615 WO2019037523A1 (en) | 2017-08-24 | 2018-06-15 | Vacuum cleaner motor and vacuum cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710734233.8A CN107370322B (en) | 2017-08-24 | 2017-08-24 | Dust collector motor and dust collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107370322A true CN107370322A (en) | 2017-11-21 |
| CN107370322B CN107370322B (en) | 2021-12-07 |
Family
ID=60310599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710734233.8A Active CN107370322B (en) | 2017-08-24 | 2017-08-24 | Dust collector motor and dust collector |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107370322B (en) |
| WO (1) | WO2019037523A1 (en) |
Cited By (2)
| 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 |
| 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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| 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 |
| 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 |
|---|---|
| CN107370322B (en) | 2021-12-07 |
| WO2019037523A1 (en) | 2019-02-28 |
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