CN102801273A - Brushless motor and system thereof - Google Patents
Brushless motor and system thereof Download PDFInfo
- Publication number
- CN102801273A CN102801273A CN2011101406818A CN201110140681A CN102801273A CN 102801273 A CN102801273 A CN 102801273A CN 2011101406818 A CN2011101406818 A CN 2011101406818A CN 201110140681 A CN201110140681 A CN 201110140681A CN 102801273 A CN102801273 A CN 102801273A
- Authority
- CN
- China
- Prior art keywords
- salient pole
- electric machine
- motor
- stator
- rotor
- 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.)
- Pending
Links
Images
Landscapes
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The invention discloses a brushless motor, which comprises a rotor and a stator. The rotor has a plurality of magnetized surfaces which are alternately magnetized into N and S poles in a rotating direction. The stator has a plurality of salient poles. A coil is wound on each salient pole. The salient poles are opposite to the magnetized surfaces. The rotor also comprises a plurality of cavities below the magnetized surfaces. Each of a plurality of magnets is arranged in each cavity. Different configurations of a motor structure or a motor system are also instructed by the other aspects of the invention to obtain flexible power output.
Description
Technical field
The present invention relates to brushless electric machine and system thereof, especially have the brushless electric machine of power output flexibly.
Background technology
Permanent magnetic brushless has been widely used for different electricity and has used such as three-phase pump, fan, air blast, compressor, conveyer driving etc.The driving power of brushless electric machine is provided by the cutting effect of the permanent magnetic field that is derived from permanent magnet and the variable electromagnetic field that winding produced in coil or the so-called brushless electric machine.Magnetosensitive Hall effect parts are installed in some brushless electric machines to collect the signal of permanent magnetic field, and it can be used as the reference that is used to control the electrical power that is applied to motor windings.
Three-phase brushless motor has advantage such as simple designs, intrinsic high staring torque and high efficiency.Yet existing brushless electric machine has some shortcoming, and one of shortcoming is that the epitrochanterian permanent magnet of brushless electric machine is installed to usually or is fixed on the circumferential outer surface of rotor core.Permanent magnet being installed or is fixed on the circumferential outer surface of rotor core has increased the air gap between rotor and the stator, and between adjacent permanent, produces big air gap.Permanent magnet is fixed to known method on the rotor core outer surface to be comprised magnet is connected to outer surface or even uses adhesive that said magnet is adhered to said outer surface through screw thread or bolt.Adhesion method is not necessarily reliable, and has risk: during the high speed rotating of rotor, permanent magnet might and damage brushless electric machine from the surface isolation of rotor.
Traditional high power brushless electric machine also has problem: the controller that is used for brushless electric machine is difficult to make, and reason is that controller has to bear from the required big electric current of motor generation high power output.Therefore, the manufacturing complexity that is used to make the controller with high power components causes undesirable high cost.In some cases, traditional high power brushless electric machine has fixing driving power, thereby can't aspect the change driving power flexibility be provided according to application-specific.
Summary of the invention
According to aforesaid background, target of the present invention is to eliminate to a certain extent or alleviate the relevant one or more problems of known permanent magnetic brushless.
Above-mentioned target is able to satisfy through the characteristics combination of main claim.Dependent claims further discloses advantageous embodiment of the present invention.
The electric system that another target of the present invention provides a kind of AC brushless electric machine and is made up of brushless electric machine.
Those skilled in the art will obtain other targets of the present invention from following description.Thereby the aforementioned statement of target is not exhaustive, and only is used for explaining the part of the many targets of the present invention.
Therefore, in one aspect, the present invention includes a kind of brushless electric machine, this brushless electric machine comprises: have on rotation direction the rotor that earth magnetism alternately turns to a plurality of magnetized surfaces of the N and the S utmost point; Stator with a plurality of salient poles, coil are wrapped on each salient pole; A plurality of salient poles are opposed to magnetized surface.Rotor further comprises a plurality of chambeies under the magnetized surface; In a plurality of magnets each places in the corresponding chamber.
According to another aspect of the present invention, a kind of electric system is provided, it comprises: a plurality of motors; At least one transmission coupling that connects the driving shaft of a plurality of motors; Be connected to the controller of a plurality of motors.Transmission coupling can will be sent to drive member from the driving power of a plurality of motors.Controller can be controlled the operation of a plurality of motors, makes that the motor of the predetermined number among a plurality of motors can be driven simultaneously, and other motors in a plurality of motors are not driven simultaneously.Motor can comprise brushless electric machine.Transmission coupling can be like this, so that with end terminal mode is connected the driving shaft of a plurality of motors, in other words, the output driving shaft of the driving shaft of motor partly is connected to the input drive shaft part of adjacent motor.Motor thereby can be arranged to motor shaft and vertically adjust.
Of the present invention aspect another, brushless electric machine comprises at least two rotors, at least two stators and controller.The rotor driven shaft connects, and each stator is corresponding to separately a rotor, and surrounds rotor separately.Each stator further comprises winding.Controller is connected to the winding of stator.Controller can only offer electrical power the winding of the predetermined number in the winding of two stators.
In yet another aspect, the invention discloses a kind of brushless electric machine, this brushless electric machine comprises: rotor; Stator with a plurality of salient poles, first and second coils are wrapped on each salient pole; And at least one is connected to the controller of first coil and second coil.Controller can offer electrical power first coil, second coil or offer first coil and second coil simultaneously.
The present invention has many advantages.At first, through permanent magnet being inserted in the chamber of rotor core lower face, permanent magnet stably is fixed in the rotor, thereby the risk that makes permanent magnet break away from is able to eliminate or reduce substantially.On the other hand, the magnetic line of force of the son that rotates distributes because of the position that permanent magnet is arranged more uniformly, and this has just improved energy conversion efficiency, and and then has increased the overall performance of motor.Groove is set between two magnetized surfaces or epitrochanterian in fact two permanent magnets.Epitrochanterian groove produces air-flow when brushless electric machine moves, make the coil heat interior or heat on every side and peritrochanteric that accumulates on the salient pole to dissipate effectively.
Another advantage of the present invention is: in the described in embodiments of the present invention electric system; Multiple structure is provided, such as more than one controller or a more than controller of controlling the brushless electric machine in the electric system separately of controlling the coil on the stator separately.These structures have been used with the coil/motor in the control system individually; So that can realize the flexible power output of electric system; And make a more than small-power controller more simply but not simple high power controller, the height that still obtains expectation simultaneously drives power output.On the other hand, electric system can obtain energy saving when destination apparatus does not need whole power output of electric system.
Description of drawings
Aforementioned and further characteristic of the present invention will become obvious from the following description of the preferred embodiment that provides via example and accompanying drawing, wherein:
Fig. 1 a is the stator of brushless electric machine according to an embodiment of the invention and the viewgraph of cross-section of rotor structure;
Fig. 1 b shows the cross section of rotor view of the brushless electric machine among Fig. 1 a;
Fig. 2 shows the sketch map of the viewgraph of cross-section of brushless electric machine in accordance with another embodiment of the present invention;
Fig. 3 shows the sketch map of brushless electric machine magnetic field line on every side in accordance with another embodiment of the present invention;
Fig. 4 shows the sketch map of brushless electric machine according to an embodiment of the invention, and wherein, two different coils are wrapped on the monosalient pole;
Fig. 5 shows the sketch map of the viewgraph of cross-section of brushless electric machine according to an embodiment of the invention, and this brushless electric machine comprises two groups of stators and rotor;
Fig. 6 illustrates the composition of a plurality of brushless electric machines that form electric system according to an embodiment of the invention;
Fig. 7 shows the sketch map of the viewgraph of cross-section of electric system according to an embodiment of the invention, and this electric system is made up of two brushless electric machines, and each motor comprises two groups of stators and rotor.
Embodiment
In claim and aforementioned description of the present invention subsequently; Except because of express language or the necessary hint; Speech among this paper " comprises " or deformation ratio is used to comprise meaning like " having comprised " or " just comprising "; In other words, specify the existence of special characteristic, but not get rid of the existence or the increase of other characteristics in the different embodiments of the invention.
So the place with or the used that kind of claim, " connection " or " connection " refers to electrically connect directly or indirectly or connect via one or more electric components, unless otherwise mentioned.
With reference now to Fig. 1 a, Fig. 1 b and Fig. 2,, the first embodiment of the present invention is the brushless electric machine that comprises stator 22 and rotor 24.The core 21 of rotor 24 preferably manufactures through piling up a plurality of silicon steel, and rotor core 21 has hollow shape, and axle 44 is mounted through this hollow shape.As shown in Figure 2, axle 44 is installed in rotation on the end cap 45 of motor via a plurality of bearings 47.On the exterior circumferential of rotor 24, have a plurality of surperficially 40, below each surface 40, the chamber is formed in the rotor 24.In each chamber, has magnet 26, the magnet steel of preferably arranging with shaped steel.Magnet steel 26 is arranged, and makes their the N utmost point and the S utmost point alternately locate on rotation direction along the circumference of rotor 24.Magnet steel 26 preferably includes the silicon steel sheet (not shown).In this configuration, each surface 40 is by directly corresponding magnet steel 26 magnetization of below of surface 40.Surface 40 thereby become magnetized surface, also on rotation direction alternately earth magnetism change into the N and the S utmost point.Preferably, the chamber is evenly distributed on the circumference of rotor 24 with corresponding magnet steel 26, and equally spaced separates each other with predetermined space.In a further advantageous embodiment, between per two magnetized surfaces 40, be formed with groove 38, in other words, per two magnet steel 26 are separated by groove 38.
On the inner periphery of stator 22, be formed with a plurality of salient poles 32, the coil (not shown) is wrapped on each salient pole.A plurality of salient poles 32 are opposed to the magnetized surface 40 on the rotor 24.In one embodiment, the number of the salient pole 32 on the stator 22 is even numbers.Preferably, salient pole 32 is distributed evenly on the inner periphery of stator 24, and spaced apart equably each other with predetermined space.Selectively, also having one or more hall effect sensors 30 is installed on the salient pole 32.
In the embodiment shown in Fig. 1 a, on the inner periphery of stator 22, have 18 salient poles 32, correspondingly on the excircle of rotor 24, have 16 magnet steel 26.18 salient poles 32 are divided into two group of three phase winding along the inner periphery of stator 22, that is to say first winding 34 and second winding.In other words, each in first winding 34 and second winding 36 is held 9 salient poles.First winding 34 and second winding 36 are the diameter pitch winding; This just means at each and holds in three phase windings of 9 salient poles; First phase coil withdraws from from second salient pole between first salient pole and the 3rd salient pole being wrapped on the positive direction around first salient pole then; Second phase coil twines a circle around the 6th salient pole then again being wrapped on the positive direction around the 4th salient pole on negative direction, withdraw from from the 5th salient pole between the 4th salient pole and the 6th salient pole then; The third phase coil twines a circle around the 9th salient pole then again being wrapped on the positive direction around the 7th salient pole on negative direction, withdraw from from the 8th salient pole between the 7th salient pole and the 9th salient pole then; Identical coil arrangement is applied to other three phase windings.As shown in Figure 2, three phase windings of each in the motor are coupled to CA cable assembly 46, and it is used for supplying power to winding, and the state information of motor is offered the external sensor (not shown) such as Hall element 30 collected data.
Getting back to above-mentioned device operation now, is three-phase brushless motor like Fig. 1 a, Fig. 1 b and brushless electric machine shown in Figure 2.When three-phase DC electric power is provided to motor, the winding on the motor salient pole will generate an electromagnetic field, and therefore the action of a magnetic field that itself and epitrochanterian permanent magnet produced drives rotor rotation, causes from the mechanical energy of axle output.In the time of in magnet steel 26 is embedded in rotor 20, this moment rotor 24 with high speed rotating, magnet steel 26 is by in the fixed rotor 24 stably and can not separate with rotor 24, and latter's situation regular meeting in traditional brushless electric machine takes place.Thereby the reliability of rotor is strengthened widely, and can reduce the maintenance needs of motor.In yet another aspect, the magnetic line of force of peritrochanteric is because the position of magnet steel and distributing more equably, and this has just improved energy conversion efficiency, and and then increases the overall performance of motor.With reference to figure 3, it shows near the magnetic field line 42 the rotor surface, because per two magnet steel 26 are separated by groove 38, near the magnetic field the rotor surface further distributes with even mode for the conventional motors that does not have groove.The hysteresis loop of magnet steel is owing to the isolation between two magnet steel also is enhanced, and the surface, magnetic field of rotor is reinforced.On the other hand, the groove 38 that causes because of inhomogeneous geometry also is used for when rotor 24 rotates, producing air-flow, thereby is convenient to the heat dissipation of the winding in the motor and the temperature of position rotor when it is in operation.
Insert silicon steel sheets in the magnet steel 26 and prevent that magnet steel 26 from avoiding the leakage magnetic field influence.Be installed in the position and the rotating speed of hall effect sensor 30 detection rotors 24 on the salient pole of brushless electric machine, and give the external motor controller (not shown) that is connected to motor via above-mentioned CA cable assembly 46 this information.Because magnetic field will be detected in different positions, a more than hall effect sensor 30 is installed on the corresponding salient pole 32 better testing result is offered hall effect sensor 30.Preferably, hall effect sensor 30 also is divided into three groups, with the state information of each phase of being provided for three phase electric machine.The output of supplying with the hall effect sensor 30 of remote motor controller can be further analyzed through the software that uses a computer.
In addition; Salient pole in the foregoing description of motor is divided into two group of three phase winding equably; And each three phase winding can be connected to independent electric machine controller, and this total current that just means that brushless electric machine bears is also shared by two electric machine controller institutes equably.This resultant flux amount configuration has been eliminated and has been produced needs single, high-power electric machine controller, and on the contrary, manufacturing is more prone to the control motor more than a small-power controller, but still can obtain the high driving power of expectation of motor.Owing to have a more than electric machine controller, the total current that is applied to motor is flexibly, and can regulate according to application-specific, such as the occasion of the high output torque of needs.
In an alternative embodiment of the invention as shown in Figure 4, brushless electric machine comprises two and different is wrapped in the coil on the salient pole on each salient pole, in other words first coil 104 and second coil you 06.First coil 104 and the 106 independently of one another and isolation of second coil.First coil 104 and second coil 106 are wired into first controller 100 and second controller 102 respectively.
In operation, when first coil 104 and second coil 106 were independently of one another, shown brushless electric machine can only offer first coil 104, second coil 106 or two coils with electric power.For example, when destination apparatus only needed relatively little actuating force, first controller 100 can offer magnetic field and the rotation of rotor driven motor shaft that first coil, 104, the first coils 104 are produced with electric power, so that produce relatively little actuating force.At this moment, second coil 106 is not provided electric power, thereby second coil 106 does not produce magnetic field.On the other hand, when the big relatively actuating force of destination apparatus needs, first controller 100 and second controller 102 can offer first coil 104 and second coil 106 with electric power simultaneously.Rotor then simultaneously with the action of a magnetic field from first coil 104 and second coil 106, thereby total actuating force that motor is exported is big.
In of the present invention further embodiment as shown in Figure 5, brushless electric machine comprises two group rotors and the stator in the motor housing, in other words first stator 80, second rotor 82, second stator 84 and second rotor 86.The first rotor 82 is installed on the identical driving shaft 44 with second rotor 86.Each of rotor/stator sets is corresponding to the electric machine controller (not shown), and the result has first stator 80 of the first rotor 82, perhaps has second stator 84 of second rotor 86, can operate at synchronization, and perhaps they can be operated simultaneously.For example, when destination apparatus only needed relatively little actuating force, the first controller (not shown) can offer magnetic field that first stator, 80, the first stators 80 are produced and the axle 44 of rotor driven motor rotates with electric power, so that the relatively little actuating force of generation.At this moment, electric power is not provided, thereby second stator 84 does not produce magnetic field to drive second rotor 86 to second stator 84.Yet because second rotor 86 also is installed on the axle 44, the rotation of first stator, the 80 caused axles 44 of energizing also will drive second rotor 86 and rotate.On the other hand, when destination apparatus needed big relatively actuating force, the first controller (not shown) and the second controller (not shown) can offer first stator 80 and second stator 84 with electric power simultaneously.The first rotor 82 and second rotor 86 work with the magnetic field of first stator 80 and second stator 84 respectively then, thereby total actuating force that motor is exported is big.
In further improving; On each stator of motor; Have two and be similar to coil windings shown in Figure 4; Thereby the output level of motor can further be regulated according to four varying levels, and this can be through obtaining two coil power supplies on coil on two coils on two coils on a coil on the stator, the stator, the stator and another stator and two stators.
In another aspect of this invention, the electric system of being made up of a more than single motor is able to describe with reference to figure 6 and Fig. 7.Get back to Fig. 6 now, in one embodiment, electric system comprises a plurality of motors, wherein comprises first motor 61 and second motor 63, and each motor is connected by electrical wiring to control module 64, and it preferably comprises a plurality of electric machine controllers corresponding to motor.The axle 44 of per two motors is connected by the transmission coupling 62 that is unidirectional coupling.Axle 44 at first motor 61 of the tail end of brushless motor system is output shafts of electric system.Transmission coupling 62 can dispose so that connect the driving shaft 44 of a plurality of motors with end to end mode by this way, and in other words, the output driving shaft of motor driving shaft partly is connected to the input drive shaft part of adjacent motor.These motors thereby the motor shaft that can be arranged to them vertically align.In operation, a plurality of motor can be through control module 64 opening/closing individually.Can open (i.e. power supply) selectively so that the output of expectation power to be provided when destination apparatus only needs the part of the available maximum power of electric system, some of motor, do not powered up although other non-flexible lamp organizational securities are held.For example, if the destination apparatus sub-fraction of required power only, control module 64 will provide electric power to first motor 61 being used for motor operation, and second motor 63 in the system does not move with other motors.The axle 44 of first motor 61 drives destination apparatus then.Although the axle 44 of first motor 61 also is connected to the axle of second motor 63 through transmission coupling 62; Second motor 63 is driven then; Because transmission coupling 62 is single-pass shaft couplings, it only allows actuating force to be sent to first motor 61 from second motor 63, but is not reversible.Yet, when destination apparatus need electric system more power or even during maximum power, control module 64 may command, first motor 61 and second motor 63, perhaps other motors in the system are to operate simultaneously.Because the existence of transmission coupling 62, rear portion the motor for example driving power that produced of second motor 63 can be sent to for example first motor 61 of anterior motor, make that the gross output of electric system is the combination from the driving power of each motor.Motor in the electric system can be brushless electric machine or magneto.
In the embodiment shown in fig. 7, two brushless electric machines are connected so that with above-mentioned mode co-operation by single-pass transmission coupling 62.Yet, in each brushless electric machine, also have a plurality of rotor/stator groups.All rotor/stator groups in each motor can be made that the output of electric system is high flexible, and can regulate according to the demand of destination apparatus by the control individually of corresponding electric machine controller (not shown) institute.
Although in accompanying drawing and aforementioned description, at length explain and described the present invention; Equally think in essence displaying property and nonrestrictive; Should be understood that only exemplary embodiment has obtained showing and explanation, is not to limit scope of the present invention by any way.Scrutable is that any characteristic described herein can be used for any embodiment.Other embodiment that illustrative embodiment or this paper do not narrate are not repulsion each other.Thereby the present invention also provides the embodiment that comprises the one or more combinations among the above-described illustrative embodiment.Remodeling of the present invention that this paper proposed or modification can obtain without departing from the spirit and scope of the present invention, and therefore, only this restriction should be exerted one's influence to represented accessory claim.
Should be understood that if any prior art publication at this as a reference, this reference does not constitute the admitting an of part that publication is formed public knowledge of the prior art in Australia or any other are national.
For example, the permanent magnet in the brushless electric machine is to have the magnet steel that is inserted in the silicon steel sheet in the magnet steel.The rotor core of motor is processed by a pile silicon steel sheet.Yet those skilled in the art will be appreciated that magnet or rotor core can use any other appropriate materials/configuration manufacturing to form, as long as these material/configurations can provide expected performance.
In above-described preferred embodiment, in brushless electric machine, have 18 salient poles and 16 magnet steel.But in other are used, can be satisfied if the number of magnet is even number and switching-over condition, brushless electric machine can comprise the magnetic pole or the magnet of any number.In an enforcement, the number of salient pole can be even number or odd number, and the number of magnet steel must be an even number.
Fig. 4 extremely embodiment shown in Figure 7 provides motor and electric system used different layouts; To be implemented to the flexible power output of destination apparatus (such as the more than rotor/stator group in, a plurality of coils on the salient pole, the combination of a more than motor, the single motor etc.).Those skilled in the art will be appreciated that and in application-specific, produce different capacity output that the configuration/motor coil of any kind or the combination of motor should fall within the scope of the invention, and should not limited by the described specific embodiment of preceding text.For example, single extremely the going up in motor can have three or four different windings, and more than two groups of rotor/stator can be installed in the inside of single motor, and more than two motors can use the transmission coupling assembling to form electric system etc.Equally, the controller that is used for coil/motor can be disposed neatly, such as being integrated into the single controller module or being developed to independent electric machine controller.
The above embodiments are described through using brushless electric machine.Yet, it will be appreciated by those skilled in the art that motor that instruction of the present invention also may be used on other types is such as in the brushless electric machine.
In the embodiment shown in fig. 6, the transmission coupling that is used for connecting two motors is the single-pass shaft coupling.Yet according to the application-specific of electric system, transmission coupling can be other models.For example, rotate when destination apparatus needs forward rotation and negative sense, the transmission coupling that is used for electric system can be a bi-directional clutch, or or the mixing of bi-directional clutch and unidirectional coupling.
Claims (16)
1. brushless electric machine comprises:
Have and on rotation direction, replace the rotor that earth magnetism turns to a plurality of magnetized surfaces of the N utmost point and the S utmost point;
Stator with a plurality of salient poles, coil are wrapped on each salient pole, and said a plurality of salient poles are opposed to said magnetized surface;
Wherein, said rotor further comprises a plurality of chambeies under the said magnetized surface; In a plurality of magnets each places in corresponding of said a plurality of chambeies.
2. brushless electric machine according to claim 1 is characterized in that, said magnet with first arranged at predetermined intervals under the said magnetized surface of said motor; Said salient pole is formed on the said stator with second predetermined space.
3. brushless electric machine according to claim 1 and 2 is characterized in that said motor further comprises a plurality of grooves, and each said groove is formed between two said magnetized surfaces.
4. brushless electric machine according to claim 1 and 2 is characterized in that said magnet is a magnet steel, and each said magnet further comprises silicon steel sheet.
5. brushless electric machine according to claim 2 is characterized in that the number of the said salient pole on the said stator is an even number.
6. brushless electric machine according to claim 5 is characterized in that, said a plurality of salient poles are divided into two group of three phase winding equably along the circumference of said stator.
7. brushless electric machine according to claim 6 is characterized in that the number of said a plurality of salient poles is 18, and the number of said a plurality of magnet is 16.
8. brushless electric machine according to claim 7; It is characterized in that; In each said three phase winding; First phase coil is wrapped in positive direction around first salient pole, on the 3rd salient pole, twines a circle again with negative direction then, and second salient pole between said first salient pole and said the 3rd salient pole withdraws from then; Second phase coil is wrapped in positive direction around the 4th salient pole, on the 6th salient pole, twines a circle again with negative direction then, and the 5th salient pole between said the 4th salient pole and said the 6th salient pole withdraws from then; The third phase coil is wrapped in positive direction around the 7th salient pole, on the 9th salient pole, twines a circle again with negative direction then, and the 8th salient pole between said the 7th salient pole and said the 9th salient pole withdraws from then.
9. electric system comprises:
A plurality of motors;
At least one transmission coupling that connects the driving shaft of said a plurality of motors; Said transmission coupling can will be sent to drive member from the driving power of said a plurality of motors;
Be connected to the controller of said brushless electric machine;
It is characterized in that said controller can be controlled the operation of said a plurality of motors, make that said a plurality of motors of the predetermined number among said a plurality of motor can be driven simultaneously, other motors in said a plurality of motors are not driven simultaneously.
10. electric system according to claim 9 is characterized in that said transmission coupling is a unidirectional coupling.
11. electric system according to claim 9 is characterized in that, said transmission coupling is a bi-directional clutch.
12. electric system according to claim 9 is characterized in that, said motor is a brushless electric machine.
13. electric system according to claim 9 is characterized in that, said motor is a magneto.
14. electric system according to claim 9; It is characterized in that; Said transmission coupling connects the said driving shaft of said a plurality of motors with end to end system; Thus, one of them the output driving shaft of said driving shaft of said a plurality of motors partly is connected to the input drive shaft part of said driving shaft of one of them adjacent motor of said a plurality of motors.
15. a brushless electric machine comprises:
At least two rotors, said rotor is connected by driving shaft;
At least two stators, each said stator corresponds respectively to one of them of said rotor, and surrounds rotor separately; Each said stator further comprises winding;
Be connected to the controller of the said winding of said stator, wherein, said controller can only offer electrical power the said winding of the predetermined number among the said winding of said stator.
16. a brushless electric machine comprises:
Rotor;
Stator with a plurality of salient poles, first and second coils are wrapped on each salient pole;
At least one is connected to the controller of said first coil and said second coil, and said controller can offer electrical power said first coil, said second coil or offer first coil and second coil simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101406818A CN102801273A (en) | 2011-05-26 | 2011-05-26 | Brushless motor and system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101406818A CN102801273A (en) | 2011-05-26 | 2011-05-26 | Brushless motor and system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102801273A true CN102801273A (en) | 2012-11-28 |
Family
ID=47200276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101406818A Pending CN102801273A (en) | 2011-05-26 | 2011-05-26 | Brushless motor and system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102801273A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219849A (en) * | 2013-05-06 | 2013-07-24 | 东南大学 | Rotor-permanent-magnetic type doubly-salient motor |
| CN104917349A (en) * | 2015-07-08 | 2015-09-16 | 福建亚南电机有限公司 | Power-assisted steering high-efficiency high-reliability self-cooling permanent-magnet synchronous motor especially for new energy automobile |
| WO2015165012A1 (en) * | 2014-04-28 | 2015-11-05 | Foster Assets Corporation | Brushless motor and system thereof |
| CN105194883A (en) * | 2015-09-17 | 2015-12-30 | 惠州市东阳塑胶模型有限公司 | Motor for model airplane aircraft |
| WO2021076428A1 (en) * | 2019-10-15 | 2021-04-22 | Darrell Schmidt Enterprises, Inc. | Magnetic coupler |
| WO2021093680A1 (en) * | 2019-11-13 | 2021-05-20 | 苏州宝时得电动工具有限公司 | Motor |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0497317A1 (en) * | 1991-01-30 | 1992-08-05 | FINEA, d.o.o. | Electronically commutated two-phase electromotor with outer-rotor |
| JPH07250403A (en) * | 1994-03-09 | 1995-09-26 | Mazda Motor Corp | Controller for electric vehicle |
| CN1195916A (en) * | 1997-04-02 | 1998-10-14 | 三星电子株式会社 | Sensorless brushless DC motor |
| CN2468211Y (en) * | 2001-02-28 | 2001-12-26 | 路志强 | Multistage integral submersible electric motor |
| CN1380733A (en) * | 2001-04-09 | 2002-11-20 | 株式会社萌利克 | Stator for rotary electric equipment |
| CN1470094A (en) * | 2000-12-22 | 2004-01-21 | 株式会社美姿把 | Coil winding arrangement for armatures |
| US20050001503A1 (en) * | 2003-04-24 | 2005-01-06 | Helmut Hans | Rotor for an electric motor |
| CN101499699A (en) * | 2008-11-05 | 2009-08-05 | 宁波市北仑海伯精密机械制造有限公司 | External rotor type motor with multiple rotors and multiple stators |
| CN101662200A (en) * | 2009-08-10 | 2010-03-03 | 刘明 | Dual-control double-drive permanent-magnet direct-current brushless motor |
| CN201466836U (en) * | 2008-12-30 | 2010-05-12 | 中国电子科技集团公司第二十一研究所 | Three-phase centralized winding type electric motor with redundant winding |
-
2011
- 2011-05-26 CN CN2011101406818A patent/CN102801273A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0497317A1 (en) * | 1991-01-30 | 1992-08-05 | FINEA, d.o.o. | Electronically commutated two-phase electromotor with outer-rotor |
| JPH07250403A (en) * | 1994-03-09 | 1995-09-26 | Mazda Motor Corp | Controller for electric vehicle |
| CN1195916A (en) * | 1997-04-02 | 1998-10-14 | 三星电子株式会社 | Sensorless brushless DC motor |
| CN1470094A (en) * | 2000-12-22 | 2004-01-21 | 株式会社美姿把 | Coil winding arrangement for armatures |
| CN2468211Y (en) * | 2001-02-28 | 2001-12-26 | 路志强 | Multistage integral submersible electric motor |
| CN1380733A (en) * | 2001-04-09 | 2002-11-20 | 株式会社萌利克 | Stator for rotary electric equipment |
| US20050001503A1 (en) * | 2003-04-24 | 2005-01-06 | Helmut Hans | Rotor for an electric motor |
| CN101499699A (en) * | 2008-11-05 | 2009-08-05 | 宁波市北仑海伯精密机械制造有限公司 | External rotor type motor with multiple rotors and multiple stators |
| CN201466836U (en) * | 2008-12-30 | 2010-05-12 | 中国电子科技集团公司第二十一研究所 | Three-phase centralized winding type electric motor with redundant winding |
| CN101662200A (en) * | 2009-08-10 | 2010-03-03 | 刘明 | Dual-control double-drive permanent-magnet direct-current brushless motor |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219849A (en) * | 2013-05-06 | 2013-07-24 | 东南大学 | Rotor-permanent-magnetic type doubly-salient motor |
| WO2015165012A1 (en) * | 2014-04-28 | 2015-11-05 | Foster Assets Corporation | Brushless motor and system thereof |
| US20170047834A1 (en) * | 2014-04-28 | 2017-02-16 | Foster Assets Corporation | Brushless Motor and System Thereof |
| CN104917349A (en) * | 2015-07-08 | 2015-09-16 | 福建亚南电机有限公司 | Power-assisted steering high-efficiency high-reliability self-cooling permanent-magnet synchronous motor especially for new energy automobile |
| CN105194883A (en) * | 2015-09-17 | 2015-12-30 | 惠州市东阳塑胶模型有限公司 | Motor for model airplane aircraft |
| WO2021076428A1 (en) * | 2019-10-15 | 2021-04-22 | Darrell Schmidt Enterprises, Inc. | Magnetic coupler |
| WO2021093680A1 (en) * | 2019-11-13 | 2021-05-20 | 苏州宝时得电动工具有限公司 | Motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101501963B (en) | Poly-phasic multi-coil generator | |
| CN102801273A (en) | Brushless motor and system thereof | |
| JP4576363B2 (en) | Auxiliary drive | |
| EP2466733A2 (en) | Synchronous motor | |
| CN101442236A (en) | Novel magnetic energy ship | |
| CN101577448A (en) | Fan-shaped motor | |
| CN105703583A (en) | Multi-stator hybrid magnetic circuit permanent magnet synchronous motor and method | |
| KR20140008524A (en) | Drive system for a land craft | |
| US20170047834A1 (en) | Brushless Motor and System Thereof | |
| CN105553148B (en) | A kind of rotating shaft gauche form magneto | |
| CN103441651B (en) | A kind of multi-port energy conversion device | |
| CN101119039A (en) | Axial switch reluctance motor | |
| CN104967267B (en) | Constant-torque permanent magnet coupler | |
| CN108736679A (en) | Motor with continuous magnetic variation characteristic and its control method | |
| CN208489784U (en) | A kind of multistage spoke for electric vehicle interlocks rotor permanent magnet synchronous motor | |
| CN108418375A (en) | A kind of multistage spoke for electric vehicle interlocks rotor permanent magnet synchronous motor and its method | |
| KR970000792A (en) | System and method for driving electric vehicle | |
| CN208445460U (en) | A kind of spoke type for electric vehicle interlocks rotor permanent magnet synchronous motor | |
| CN111030410A (en) | Novel permanent magnet synchronous motor | |
| CN102738984B (en) | Brushless double-fed motor with multiple air gaps | |
| CN104979977A (en) | Direct drive motor for drum type washing machine | |
| CN101039058B (en) | Motor | |
| CN205725198U (en) | A kind of coreless permanent magnet formula generating and electric device | |
| WO2014016728A4 (en) | Induction motor-permanent magnet generator tandem configuration starter-generator for hybrid vehicles | |
| CN201682444U (en) | Electromagnetic speed regulation driving system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121128 |