CN103051141A - Brushless electric machine for dust collector - Google Patents
Brushless electric machine for dust collector Download PDFInfo
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- CN103051141A CN103051141A CN2013100248962A CN201310024896A CN103051141A CN 103051141 A CN103051141 A CN 103051141A CN 2013100248962 A CN2013100248962 A CN 2013100248962A CN 201310024896 A CN201310024896 A CN 201310024896A CN 103051141 A CN103051141 A CN 103051141A
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Abstract
The invention discloses a brushless electric machine for a dust collector. The brushless electric machine for the dust collector comprises a controller, a rectifier, a stator core, a rotor core and a shell, wherein the stator core is embedded with windings; the rotor core is arranged inside the stator core; the shell is fixedly connected with the stator core and the rotor core; three groups of windings are embedded on the stator core; rubidium, ferrum and boron magnet steel is sintered at the periphery of the middle part of the rotor core; the magnetic poles of the direction in which axle wires are positioned, pointing to the adjacent magnet steel are different; a stainless steel hoop is arranged at the periphery of the magnet steel; the controller comprises a driver and a position detection chip; and the rectifier comprises a transformer and an alternating current converter. According to the brushless electric machine, the rotating speed of the motor is effectively increased in a manner that the stator is outside and the rotor is inside, the position of the motor can be detected by the position detection chip, and the accuracy of position detection is effectively improved. In addition, the brushless electric machine also has the characteristics of being low in noise, small in generated interference, small in volume, high in efficiency, wide in speed adjusting range, easy to maintain, long in service life, strong in versatility and the like.
Description
Technical field
The present invention relates to the dust catcher field, more specifically, relate to a kind of brushless electric machine for dust catcher.
Background technology
Motor of dust collector is the dust catcher heart, and the main species of motor of dust collector has to do to be inhaled motor of dust collector and do wet dust catcher.Motor of dust collector is made of two parts: motor part and blower fan part, motor of dust collector requires very high to rotating speed, generally at 20000～30000 rev/mins.In addition, in order to save the interior space, motor of dust collector also has the little requirement of volume usually.
Usually, what motor of dust collector mainly adopted is series excitation class motor, claims again series machine.The brush configuration that has of this class motor has following shortcoming usually:
Because High Rotation Speed, brush very easily weares and teares, and easily causes motor limited useful life, and maintenance cost is high; Because brush adopts mechanical type contact, consume is large, efficient is low, power output is little, easily produce electric spark during running and interference phenomenon occurs; Because series machine normally adopts power supply directly to drive, its power output and rotating speed are generally definite value, therefore its versatility is poor, usually need to design the series machine of many moneys different size for the product of different model.
In addition, usually be difficult to brushless electric machine is applied to dust catcher, on the one hand existing brushless electric machine is difficult to satisfy the characteristics that vacuum cleaner is little with motor volume, rotating speed is high, on the other hand, brushless electric machine often adopts the position of Hall element detection magnet steel, and Hall element easily generates heat when the high rotating speed of motor even burns.
Summary of the invention
Be difficult to apply to dust catcher in order to overcome existing brushless electric machine, be difficult to realize the defectives such as small size, high rotating speed, technical problem to be solved by this invention is to propose a kind of brushless electric machine for dust catcher, and its rotating speed is high, volume is little, efficient is high, the interference of easy care, highly versatile and generation is little.
For reaching this purpose, the present invention by the following technical solutions:
A kind of brushless electric machine for dust catcher, comprise controller, rectifier, be embedded with the stator core of winding and be located at the rotor core of stator core inside and the housing that is used for fixed described stator core and described rotor core, described rectifier links to each other with described controller, be embedded with three groups of described windings on the described stator core, the outer magnet steel that is arranged with in described rotor core middle part, the magnetic pole that adjacent described magnet steel points to place, axis direction is different.
Further, described magnet steel has 4, and around the rounded distribution of described rotor core, described magnet steel is arranged with stainless steel hoop/fiber hoop outward.
Further, described housing one end is provided with base, and described base is consolidated on the described housing.
Further, described housing two end faces is provided with bearing, and an end of described rotor core passes described bearing and the described base that is positioned at described housing one end, and the other end of described rotor core inserts the described bearing that is arranged in place, described housing other end.
Further, the end points place of an end of described rotor core is provided with and is consolidated in fan blade on the described rotor core.
Further, described fan blade is arranged with the blade cover that is complementary with described fan blade profile outward, and described blade cover is consolidated on the described base.
Further, described base is provided with screw pole, and described housing one end is provided with end cap, and described end cap is consolidated on the described housing by described screw pole.
Further, described controller comprises driver and position probing chip, and described position probing chip is located on the brushless electric machine.
Further, described rectifier comprises transformer, AC/DC changeover switch, and described AC/DC changeover switch links to each other with described controller.
Beneficial effect of the present invention is: this brushless electric machine adopts stator can the Effective Raise motor speed in interior mode at external rotor, and magnet steel is arranged with stirrup outward, the disengaging of magnet steel in the time of effectively preventing from running up; Adopt position probing chip detection motor position, not only improved position detection accuracy, and reduced detection means damage rate; Excluded brush, not only reduced noise level and will disturb generation to be controlled at less scope; In addition, this brushless electric machine also has the characteristics such as volume is little, efficient is high, easy care, life-span length, highly versatile.
Description of drawings
Fig. 1 is the structural representation of a kind of brushless electric machine for dust catcher of providing of the specific embodiment of the invention;
Fig. 2 is the structural representation of the rotor core of a kind of brushless electric machine for dust catcher of providing of the specific embodiment of the invention.
Among the figure:
1, controller; 2, rectifier; 3, winding; 4, stator core; 5, rotor core; 6, housing; 7, magnet steel; 8, stirrup; 9, base; 10, fan blade; 11, blade cover; 12, screw pole; 13, end cap; 14, bearing.
Embodiment
Further specify technical scheme of the present invention below in conjunction with accompanying drawing and by embodiment.
Fig. 1-2 be the specific embodiment of the invention provide a kind of for the brushless electric machine of dust catcher and the structural representation of rotor core.
A kind of brushless electric machine for dust catcher comprises controller 1, rectifier 2, is embedded with the stator core 4 of winding 3 and is located at the rotor core 5 of stator core 4 inside and the housing 6 that is used for fixed stator core 4 and rotor core 5.Wherein, rotor core 5 is located at the inside of stator core 4, and namely brushless electric machine adopts stator to work in interior mode at external rotor.
Be embedded with three groups of windings 3 on the stator core 4, three groups of windings around to difference, rotor core is arranged with magnet steel 7 outside 5 middle parts, the magnetic pole that adjacent magnet steel 7 points to place, axis direction is different, and magnet steel 7 has 4, and sub-iron core 5 rounded distributions rotate, after energising is magnetized, two pairs of N-S utmost points alternately change in two windings on the stator core 4, repel 4 blocks of magnet steel 7 on the rotor core 5, so that rotor core 5 rotates.Adopt this layout energy Effective Raise motor speed, dwindle the volume of motor.Be arranged with stainless steel hoop 8 or fiber hoop outside the magnet steel 7, stainless stirrup 8 or fiber hoop are wound on the magnet steel 7, the disengaging of magnet steel in the time of effectively preventing from running up.
One end of rotor core 5 passes bearing 14 and the base 9 that is positioned at housing 6 one ends, is provided with in its end points place and is consolidated in fan blade 10 on the rotor core, is arranged with the blade cover 11 that is complementary with fan blade 10 profiles outside the fan blade 10, and blade cover 11 is consolidated on the base 9; The other end of rotor core 5 inserts the bearing 14 that is arranged in place, housing 6 other ends.
Rectifier 2 comprises transformer, AC/DC changeover switch, and AC/DC changeover switch links to each other with controller 1, and controller 1 comprises the position probing chip that is attached thereto, and the position probing chip is located on the brushless electric machine.Adopt position probing chip detection motor position, not only improved position detection accuracy, and significantly lower the possibility of element damage.Controller 1 also comprises driver, and the winding on the driver drives stator core 4 produces a magnetic field of repelling mutually with magnet steel 7, drive rotor iron core 5 High Rotation Speeds.Rectifier 2 is used for alternating current is changed into direct current, is the brushless electric machine power supply.
During concrete the use, after the brushless electric machine plugged, by rectifier 2 alternating current being changed into direct current first is the brushless electric machine power supply, then position probing chip detection magnet steel position signalling sends to controller 1 judgement magnet steel position, last controller 1 sends corresponding control signal according to the magnet steel position alternately to be changed by two pairs of N-S utmost points in the driver drives winding, repel 4 blocks of magnet steel 7 on the rotor core 5, so that rotor core 5 High Rotation Speeds.In other words, the purpose of position probing chip detection magnet steel position is in order to control the flow direction of electric current, to realize that two pairs of N-S utmost points alternately change in the winding.
Below only describe the present invention with embodiment, but the present invention is not limited to above-mentioned size and outward appearance illustration, more should not consist of any restriction of the present invention.As long as any improvement or modification that the present invention is done all belong within the protection range of claim opinion of the present invention.
Claims (9)
1. brushless electric machine that is used for dust catcher, comprise controller (1), rectifier (2), be embedded with the stator core (4) of winding (3) and be located at the inner rotor core (5) of stator core (4), and the housing (6) that is used for fixed described stator core (4) and described rotor core (5), described rectifier (2) links to each other with described controller (1), it is characterized in that: be embedded with three groups of described windings (3) on the described stator core (4), the outer magnet steel (7) that is arranged with in described rotor core (5) middle part, the magnetic pole of adjacent described magnet steel (7) sensing place, axis direction is different.
2. brushless electric machine according to claim 1 is characterized in that, described magnet steel (7) has 4, around the rounded distribution of described rotor core (5), and outer stainless steel hoop or the fiber hoop (8) of being arranged with of described magnet steel (7).
3. brushless electric machine according to claim 1 is characterized in that, described housing (6) one ends are provided with base (9), and described base (9) is consolidated on the described housing (6).
4. according to claim 1 or 3 described brushless electric machines, it is characterized in that, described housing (6) two end faces is provided with bearing (14), one end of described rotor core (5) passes described bearing (14) and the described base (9) that is positioned at described housing (6) one ends, and the other end of described rotor core (5) inserts the described bearing (14) that is arranged in place, described housing (6) other end.
5. according to claim 1 or 3 described brushless electric machines, it is characterized in that, the end points place of an end of described rotor core (5) is provided with and is consolidated in fan blade on the described rotor core (10).
6. according to claim 1 or 3 described brushless electric machines, it is characterized in that, described fan blade (10) is outer to be arranged with the blade cover (11) that is complementary with described fan blade (10) profile, and described blade cover (11) is consolidated on the described base (9).
7. according to claim 1 or 3 described brushless electric machines, it is characterized in that, described base (9) is provided with screw pole (12), described housing (6) one ends are provided with end cap (13), and described end cap (13) is consolidated on the described housing (6) by described screw pole (12).
8. brushless electric machine according to claim 1 is characterized in that, described controller (1) comprises driver and position probing chip, and described position probing chip is located on the brushless electric machine.
9. brushless electric machine according to claim 1 is characterized in that, described rectifier (2) comprises transformer and AC/DC changeover switch, and described AC/DC changeover switch links to each other with described controller (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100248962A CN103051141A (en) | 2013-01-14 | 2013-01-14 | Brushless electric machine for dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100248962A CN103051141A (en) | 2013-01-14 | 2013-01-14 | Brushless electric machine for dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103051141A true CN103051141A (en) | 2013-04-17 |
Family
ID=48063677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100248962A Pending CN103051141A (en) | 2013-01-14 | 2013-01-14 | Brushless electric machine for dust collector |
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| Country | Link |
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| CN (1) | CN103051141A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110011447A (en) * | 2019-05-09 | 2019-07-12 | 浙江万冠电机有限公司 | A kind of motor of dust collector |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002078258A (en) * | 2000-08-31 | 2002-03-15 | Mitsubishi Electric Corp | Motor rotor |
| CN1705173A (en) * | 2004-05-27 | 2005-12-07 | 乐金电子(天津)电器有限公司 | Commutator rectifier insulating device of motor |
| CN201355796Y (en) * | 2009-01-23 | 2009-12-02 | 东明机电（深圳）有限公司 | Brushless DC motor used for suction cleaners |
| CN102292012A (en) * | 2008-12-26 | 2011-12-21 | 株式会社东芝 | Electric vacuum cleaner |
| CN202233645U (en) * | 2011-08-24 | 2012-05-30 | 深圳拓邦股份有限公司 | Hair dryer |
| CN203261217U (en) * | 2013-01-14 | 2013-10-30 | 胡刚 | Brushless motor for dirt collector |
-
2013
- 2013-01-14 CN CN2013100248962A patent/CN103051141A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002078258A (en) * | 2000-08-31 | 2002-03-15 | Mitsubishi Electric Corp | Motor rotor |
| CN1705173A (en) * | 2004-05-27 | 2005-12-07 | 乐金电子(天津)电器有限公司 | Commutator rectifier insulating device of motor |
| CN102292012A (en) * | 2008-12-26 | 2011-12-21 | 株式会社东芝 | Electric vacuum cleaner |
| CN201355796Y (en) * | 2009-01-23 | 2009-12-02 | 东明机电（深圳）有限公司 | Brushless DC motor used for suction cleaners |
| CN202233645U (en) * | 2011-08-24 | 2012-05-30 | 深圳拓邦股份有限公司 | Hair dryer |
| CN203261217U (en) * | 2013-01-14 | 2013-10-30 | 胡刚 | Brushless motor for dirt collector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110011447A (en) * | 2019-05-09 | 2019-07-12 | 浙江万冠电机有限公司 | A kind of motor of dust collector |
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Application publication date: 20130417 |
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