CN204992936U - There is not hall three -phase dust catcher motor at a high speed - Google Patents
There is not hall three -phase dust catcher motor at a high speed Download PDFInfo
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- CN204992936U CN204992936U CN201520513883.6U CN201520513883U CN204992936U CN 204992936 U CN204992936 U CN 204992936U CN 201520513883 U CN201520513883 U CN 201520513883U CN 204992936 U CN204992936 U CN 204992936U
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Abstract
The utility model discloses a there is not hall three -phase dust catcher motor at a high speed, it has does not have a hall sensor circuit by motor air -out refrigerated, and the motor rotation number who does not have a hall sensor circuit control is greater than 80000 revolutions per minute clocks. The utility model discloses a no hall and motor air -out cooling circuit plate structure, simple structure, the appearance is pleasing to the eye, and the reliability is high, and electronic components's commutation number of times reduces simultaneously, has reduced electronic components's commutation loss, stator simple structure moreover, convenient wire winding, production efficiency improves to have the rotational speed height, small, the performance is high, convenient to carry, energy -conservation, advantage such as longe -lived, be applied to the dust catcher on, can obtain the dust absorption performance of superelevation.
Description
Technical field
The utility model relates to a kind of at a high speed without Hall three-phase motor of dust collector.
Background technology
Huge numbers of families come into by current dust catcher, and increasing Chinese family is at use dust catcher, and in conventional motor of dust collector, be generally divided into series excitation motor of dust collector and little DC dust collector motor, often adopt brush motor, rotating speed is at 20000-40000 rev/min; But brush motor volume is large, performance is low, carry inconvenience, the scope of application is restricted, and the life-span is short, adopt brushless electric machine then to need higher hardware and control circui to realize, the Hall that major part adopts detects magnetic potential to realize Field orientable control, in use often there is following problem in Hall element: 1, price is high, not easily for client accepts; 2, difficulty is installed, if Rig up error, then easily damages Hall and cause fault or poor starting; 3, add interface and the line of motor and control system, easily introduce interference, reduce reliability; 4, environment for use requires harsh, large in high temperature, high humidity, vibration, have in the environment of dust or harmful chemical, is very easily damaged; 5, motor volume is increased, to motor space requirement harshness.Based on above shortcoming, also the structure adopting the technology without Hall to substitute Hall is had in the industry, but due to the difficulty without Hall technology, the motor speed without Hall occurred in the market is not high, be usually less than 40000 revs/min, and commutation often, commutation loss is large, stator structure is complicated, is not easy to coiling.
And the circuit board of current brushless electric machine has two kinds of types of cooling mostly on market, a kind of is adopt large fin to cool; One adopts cooling fan blade to cool circuit board, and two kinds of types of cooling are all more to the structural limitations of brushless electric machine, and cost is higher.
Utility model content
The utility model object is: provide a kind of at a high speed without Hall three-phase motor of dust collector, to realize motor without Hall element structure, motor speed is greater than 80,000 revs/min, and is applied on dust catcher, can obtain the dust suction performance of superelevation.
First technical scheme of the present utility model is: a kind of at a high speed without Hall three-phase motor of dust collector, its have by motor go out air cooling without Hall element circuit, and be greater than 80000 revs/min without the motor speed of Hall element control circui.
On the basis of the first technical scheme, comprise following attached technical scheme further:
Preferably, described without Hall element circuit employing Analogical Electronics detection counter electromotive force of motor, by the feedback signal of back electromotive force as rotor magnetic pole position.
Preferably, it also comprises: have the iron core of center circle, the rotor through center circle, the first end cap for secured core one end and to coordinate with the first end cap and the second end cap of the secured core other end, the movable vane that drives in the side of the second end cap and by rotor are taken turns, accommodated movable vane and take turns and and the second end cap impeller chimney, the determining impeller and being positioned at outside the first end cap and the circuit board had without Hall element circuit the second end cap and movable vane are taken turns fixed.
Second technical scheme of the present utility model is: a kind of at a high speed without Hall three-phase motor of dust collector, it comprises the iron core with center circle, through the rotor of center circle, for first end cap of secured core one end, coordinate with the first end cap and the second end cap of the secured core other end, be positioned at the side of the second end cap and the movable vane driven by rotor wheel, collecting movable vane is taken turns and the impeller chimney fixing with the second end cap, the second end cap and movable vane wheel between determine impeller, and the circuit board be positioned at outside the first end cap, described circuit board have by motor go out air cooling without Hall element circuit, and be greater than 80000 revs/min without the motor speed of Hall element control circui.
On the basis of the second technical scheme, comprise following attached technical scheme further:
Preferably, described iron core comprise rounded iron core outer rim and by iron core outer rim inwall to several protuberances radially extended, and each protuberance is formed with pole shoe by one end, center, and the pole shoe angle a of described each pole shoe is within the scope of 90-100 °.
Preferably, the arc length of described each pole shoe is all in same center circle, and the diameter range of described center circle is 10-15 millimeter, and the monolateral air gap of each pole shoe and rotor is 0.5 millimeter.
Preferably, described iron core outer rim outer wall is outwardly several flanges, and its flange is corresponding with corresponding protuberance, and is provided with location hole and the screw hole adjacent with location hole, and wherein the center of circle of location hole and screw hole is on same circle.
Preferably, described first end cap comprises end cap outer rim, the support portion be connected with end cap outer rim and several gaps of dispelling the heat between end cap outer rim and support portion, wherein support portion comprises the center and one end with axis hole and to be connected with center several support arms that the other end is then connected with end cap outer rim, aligns in the axial direction at least partly with arc-shaped gaps in heat radiation gap.
Preferably, described circuit board comprises several these pipes that rub be arranged in heat radiation gap.
Preferably, describedly comprise controller without Hall element circuit, the power subsystem of power supply be provided to controller, with controller export be connected pre-driver unit, to export with pre-driver unit and be connected and the three-phase bridge power circuit unit be connected with motor and the current sampling unit be arranged between controller and three-phase bridge power circuit unit.
The utility model advantage is:
The utility model adopts without Hall and motor air-out cooling circuit plate structure, structure is simple, good looking appearance, and reliability is high, the commutation number of times of electronic devices and components reduces simultaneously, reduce the commutation loss of electronic devices and components, and stator structure is simple, facilitates coiling, production efficiency improves, and there is the advantages such as rotating speed is high, volume is little, performance is high, easy to carry, energy-conservation, the life-span is long, be applied on dust catcher, the dust suction performance of superelevation can be obtained.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is three-dimensional exploded view of the present utility model;
Fig. 2 is assembling view of the present utility model;
Fig. 3 is the vertical view of iron core in the utility model;
Fig. 4 is the stereogram under another visual angle of the utility model, and wherein circuit board is removed;
Fig. 5 and Fig. 4 is similar, is stereogram of the present utility model.
Fig. 6 is the stereogram of circuit board in the utility model.
Fig. 7 is the circuit theory diagrams without Hall element circuit in the utility model.
The experimental data figure at Fig. 8 to be the pole shoe angle of iron core in the utility model be 85 degree of angles.
The experimental data figure at Fig. 9 to be the pole shoe angle of iron core in the utility model be 92 degree of angles.
The experimental data figure at Figure 10 to be the pole shoe angle of iron core in the utility model be 98 degree of angles.
The experimental data figure at Figure 11 to be the pole shoe angle of iron core in the utility model be 105 degree of angles.
Embodiment
Embodiment: as Figure 1-5, the utility model provides the specific embodiment of a kind of high speed without Hall three-phase motor of dust collector, be preferably brshless DC motor, it comprises the iron core 1 with center circle 18, through the rotor 2 of center circle 18, for first end cap 3 of secured core 1 one end, coordinate with the first end cap 3 and the second end cap 4 of secured core 1 other end, be positioned at the side of the second end cap 4 and the movable vane driven by rotor 2 wheel 5, collecting movable vane takes turns 5 and the impeller chimney 7 fixing with the second end cap 4, the second end cap 4 and movable vane wheel 5 between determine impeller 8, and the circuit board 6 be positioned at outside the first end cap 3, circuit board 6 have by motor go out air cooling without Hall element circuit, and be greater than 80000 revs/min without the motor speed of Hall element control circui.Wherein the diameter range of center circle 18 is 10-15 millimeter, and each pole shoe 120 is 0.5 millimeter with the monolateral air gap of rotor 2.
Shown in composition graphs 3, iron core 1 comprises rounded iron core outer rim 10, by iron core outer rim 10 inwall to several protuberances 12 radially extended and by outwardly several flanges 14 of iron core outer rim 10 outer wall, wherein one end of protuberance 12 is formed with pole shoe 120, the pole shoe angle a of each pole shoe 120 is within the scope of 90-100 °, and the arc length of each pole shoe 120 is all in same center circle 18, to reduce the commutation loss of electronic devices and components.Be formed with arc-shaped gaps 16 between adjacent tabs 12, flange 14 is provided with screw hole 140 and the location hole 142 adjacent with screw hole 140, and wherein screw hole 140 and the center of circle of location hole 142 are on same circle.The number of protuberance 12 is preferably 3, and the center angle of adjacent two protuberance 12 circumferencial directions is 120 degree, and the number of flange 14 is preferably 3, and the center line of flange 14 and corresponding protuberance 12 center line are on the same line.Screw hole 140 and location hole 142 are installed for iron core and locate, and screw hole 140 is independent of iron circuit, does not affect magnetic circuit, does not affect the loss of iron core.
For the validity of pole shoe angle a within the scope of 90-100 ° of proving pole shoe 120 further and progressive, applicant is with reference to the experimental technique of IEC standard 60312-2000, have selected 85 degree of angles, 92 degree of angles, 98 degree of angles and 105 degree of angles and carry out contrast experiment, corresponding experimental data table as illustrated in figs. 8-11, institute's acquisition motor maximal efficiency is respectively 45.49,48.03,47.29,44.16, show that pole shoe angle a is within the scope of 90-100 ° thus, the efficiency of motor is more excellent.
Shown in composition graphs 4, the first end cap 3 comprises rounded end cap outer rim 30, the support portion 32 be connected with end cap outer rim 30 and several gaps 34 of dispelling the heat between end cap outer rim 30 and support portion 32.Support portion 32 comprises the center 320 and one end with axis hole 322 and to be connected with center 320 several support arms 324 that the other end is then connected with end cap outer rim 30, and its central axis hole 322 allows passing of rotor 2.A heat radiation gap 34 is separated with between adjacent two support arms 324.Each support arm 324 is provided with wiring board screw hole 326 and head bolts hole 322, wherein there is a step between wiring board screw hole 326 and place, head bolts hole 322 plane, and screw hole 140 and head bolts hole 322 are in the same direction and realize being fixedly connected with of first and second end cap 3,4 and iron core 1 by long spiro nail.The number of support arm 324 is preferably 3, and axial direction is roughly corresponding with the protuberance 12 of iron core 1, heat radiation gap 34 is the air outlet of motor, align in the axial direction with arc-shaped gaps 16 in heat radiation gap 34 simultaneously, avoid causing because support arm 324 stops cooling wind thus less than this pipe and affect heat radiation of rubbing on circuit board 6, structure is simple, reduces motor volume, does not increase cost again.
Shown in composition graphs 5-6, circuit board 6 comprises several these (MOS) pipes 60 that rub be arranged in heat radiation gap 34, cover the one or more fin 62 on this pipe 60 and for fixing circuit board 6 to the first end cap 3 is fixed to the screw 64 in head bolts hole 322 of rubbing.The air outlet thus heating elements such as this pipe that rub being arranged in motor cools, and by adding the thick fin of 2MM 62 rubbing on this pipe, better cools.
As shown in Figure 7, without Hall element circuit also known as circuit for controlling motor, simulation electronic control circuit is adopted to detect counter electromotive force of motor, Hall is substituted as the feedback signal of rotor magnetic pole position by back electromotive force, realize motor thus without Hall element structure, it comprises controller 510, the power subsystem 520 of power supply is provided to controller 510, the pre-driver unit 530 be connected is exported with controller 510, export with pre-driver unit 530 and be connected and the three-phase bridge power circuit unit 540 be connected with motor BLDC, be arranged on the current sampling unit 511 between controller 510 and three-phase bridge power circuit unit 540, the voltage sampling unit 512 that be connected two-way with controller 510, the speed regulating control unit 514 that be connected two-way with controller 510, the motor control unit 516 that be connected two-way with controller 510, and the temperature sampling unit 516 that be connected two-way with controller 510.Wherein three-phase bridge power circuit unit 540 comprises several this pipes 60 that rubs.Power subsystem 520 also provides power supply respectively to pre-driver unit 530, three-phase bridge power circuit unit 540, wherein input direct voltage 21.6V, signal that the pwm signal that controller 510 exports is converted to enough driving forces by pre-driver unit 530, that be suitable for driving three-phase bridge.Three-phase bridge power circuit unit 540 is power conversion unit, is controlled by pre-driver unit 530, and drive motors BLDC normally works.Controller 510 is electric machine controller core cell, accept UI input circuit signal (speed regulating control, on off control etc.), testing environment (operating current, operating voltage, ambient temperature etc.), according to UI input and environment initial conditions, export the pwm control signal be applicable to.Current sampling unit 511 detects whole circuit working electric current in real time, to realize overcurrent protection, load short circuits protection.Voltage sampling unit 512 detects whole circuit voltage in real time, to realize overvoltage/under-voltage protection.Speed regulating control unit 514 is UI control circuit, controls motor and runs at a high speed or low-speed mode.Motor control unit 516 is UI control circuit, controls electric motor starting, stopping.Temperature sampling unit 516 is testing environment working temperature in real time, to realize temperature protection.
Certain above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection range of the present utility model with this.All equivalent transformations of doing according to the Spirit Essence of the utility model main technical schemes or modification, all should be encompassed within protection range of the present utility model.
Claims (7)
1. a high speed is without Hall three-phase motor of dust collector, it is characterized in that it comprises: the iron core with center circle, through the rotor of center circle, for first end cap of secured core one end, coordinate with the first end cap and the second end cap of the secured core other end, be positioned at the side of the second end cap and the movable vane driven by rotor wheel, collecting movable vane is taken turns and the impeller chimney fixing with the second end cap, the second end cap and movable vane wheel between determine impeller, and the circuit board be positioned at outside the first end cap, described circuit board have by motor go out air cooling without Hall element circuit, and be greater than 80000 revs/min without the motor speed of Hall element control circui.
2. as claimed in claim 1 a kind of at a high speed without Hall three-phase motor of dust collector, it is characterized in that: described iron core comprise rounded iron core outer rim and by iron core outer rim inwall to several protuberances radially extended, and each protuberance is formed with pole shoe by one end, center, and the pole shoe angle a of described each pole shoe is within the scope of 90-100 °, is formed with arc-shaped gaps between adjacent tabs.
3. as claimed in claim 2 a kind of at a high speed without Hall three-phase motor of dust collector, it is characterized in that: the arc length of described each pole shoe is all in same center circle, the diameter range of described center circle is 10-15 millimeter, and the monolateral air gap of each pole shoe and rotor is 0.5 millimeter.
4. a kind of at a high speed without Hall three-phase motor of dust collector as claimed in claim 2 or claim 3, it is characterized in that: described iron core outer rim outer wall is outwardly several flanges, its flange is corresponding with corresponding protuberance, and be provided with location hole and the screw hole adjacent with location hole, wherein the center of circle of location hole and screw hole is on same circle.
5. as claimed in claim 2 a kind of at a high speed without Hall three-phase motor of dust collector, it is characterized in that: described first end cap comprises end cap outer rim, the support portion be connected with end cap outer rim and several gaps of dispelling the heat between end cap outer rim and support portion, wherein support portion comprises the center and one end with axis hole and to be connected with center several support arms that the other end is then connected with end cap outer rim, aligns in the axial direction at least partly with arc-shaped gaps in heat radiation gap.
6. as claimed in claim 5 a kind of at a high speed without Hall three-phase motor of dust collector, it is characterized in that: described circuit board comprises several these pipes that rub be arranged in heat radiation gap.
7. a kind of at a high speed without Hall three-phase motor of dust collector as described in claim 1 or 2 or 3 or 5 or 6, is characterized in that: describedly comprise controller without Hall element circuit, the power subsystem of power supply be provided to controller, with controller export be connected pre-driver unit, to export with pre-driver unit and be connected and the three-phase bridge power circuit unit be connected with motor and the current sampling unit be arranged between controller and three-phase bridge power circuit unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520513883.6U CN204992936U (en) | 2015-07-16 | 2015-07-16 | There is not hall three -phase dust catcher motor at a high speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520513883.6U CN204992936U (en) | 2015-07-16 | 2015-07-16 | There is not hall three -phase dust catcher motor at a high speed |
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| Publication Number | Publication Date |
|---|---|
| CN204992936U true CN204992936U (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520513883.6U Active CN204992936U (en) | 2015-07-16 | 2015-07-16 | There is not hall three -phase dust catcher motor at a high speed |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104967253A (en) * | 2015-07-16 | 2015-10-07 | 莱克电气股份有限公司 | High-speed Hall-free three-phase vacuum cleaner motor |
| CN106655559A (en) * | 2017-01-21 | 2017-05-10 | 浙江悍马光电设备有限公司 | Three-phase dust catcher motor structure |
| CN106972655A (en) * | 2017-01-21 | 2017-07-21 | 浙江悍马光电设备有限公司 | Three-phase brushless motor of dust collector |
-
2015
- 2015-07-16 CN CN201520513883.6U patent/CN204992936U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104967253A (en) * | 2015-07-16 | 2015-10-07 | 莱克电气股份有限公司 | High-speed Hall-free three-phase vacuum cleaner motor |
| CN104967253B (en) * | 2015-07-16 | 2018-03-30 | 莱克电气股份有限公司 | At a high speed without Hall three-phase motor of dust collector |
| CN106655559A (en) * | 2017-01-21 | 2017-05-10 | 浙江悍马光电设备有限公司 | Three-phase dust catcher motor structure |
| CN106972655A (en) * | 2017-01-21 | 2017-07-21 | 浙江悍马光电设备有限公司 | Three-phase brushless motor of dust collector |
| CN106655559B (en) * | 2017-01-21 | 2019-01-04 | 浙江悍马光电设备有限公司 | Three-phase motor of dust collector structure |
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