CN202172348U

CN202172348U - Multi-stator and multi-rotor integrated drive differential synchronous type motor

Info

Publication number: CN202172348U
Application number: CN201120187129XU
Authority: CN
Inventors: 黄宝琛; 黄新生
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-06-03
Filing date: 2011-06-03
Publication date: 2012-03-21
Anticipated expiration: 2021-06-03

Abstract

The utility model discloses a multi-stator and multi-rotor integrated drive differential synchronous type motor, characterized in that the inner of the motor comprises at least three stators and a plurality of rotors interacting with the at least three stators. Power supply ends of each winding group are in parallel connection with a power supply. The beneficial effects of the utility model are that through parallelly arranged motor stator cores and winding groups, group control of the winding groups can be realized, e.g. only two stator cores or two winding groups are powered up, and therefore the adjustment of the motor output power can be realized. The parallel stator wiring form is suitable for internal stator motors and internal rotor and external rotor composite motors.

Description

The integrated driving differential of the many rotors of multiple stators synchronous mode motor

Technical field

The utility model relates to a kind of motor, concretely, relates to a kind of multiple stators multiple rotor electric machine.

Background technology

Motor is a kind of electromechanical integrated product, is widely used in industry-by-industry as dynamical element, for example as dynamical element of mine conveyer belt, blower fan, water pump etc.In these are used; Because the electric current when starting generally can reach 4 to 10 times of operating current, is generally 6 times, the stator winding of motor needs bigger Redundancy Design; This makes the cost of motor raise to a certain extent, and its whole abilities can not effectively be used.

Chinese patent discloses a kind of multiple stators, many winding types brshless DC motor No. 200420044541.6; Belong to a plurality of identical stator winding and act on a rotor simultaneously; Though above-mentioned patent stator winding power is divisible, the unloaded load of rotor can't be cut apart, can't a plurality of rotor speed changes after; Integrated synchronous power output can't significantly improve motor force distance and power.Above-mentioned patent utilization multiple stators is only in the dc brushless motor scope.

Summary of the invention

The purpose of the utility model is to provide a kind of novel motor; Its single stator winding type of drive with common electric machine is divided into a plurality of small-power stator winding unit; And according to motor speed, moment, power and or the operating mode needs; With combination, integration mode running, realize speed change, variable force square, become power, thereby reach effect energy-conservation, that high-reliability starts, moves.

For realizing above-mentioned purpose, the utility model provides the integrated driving differential of the many rotors of a kind of multiple stators synchronous mode motor, at least two stators in this motor; And with the interactional plural rotor of these two above stators, according to the utility model, the power end of the stator winding of said each stator is connected in parallel in power supply.

Preferably, the power of each stator is unequal in the motor cuts apart.

Preferably, stator is four, and the power partitioning scheme is 1/10,2/10,2/10,5/10.

Preferably, said motor be direct current machine, alternating current machine, universal motor, stepping department clothes motor, drag cup motor etc.

Said stator is to comprise the stator of iron core and stator winding or do not have the stator that iron core only comprises stator winding, for example is no iron core stator to the drag cup motor.

Preferably; Said motor also comprises fixed axis; Through the internal rotor on slowing-down structure cooperation and the fixed axis, and pass through the external rotor that check configuration cooperates with this slowing-down structure, the annular region between internal rotor and external rotor is provided with a pair of stator core; On each stator core, be respectively equipped with and the interactional inner ring stator winding of internal rotor upper magnetic steel, and with the interactional outer ring of external rotor upper magnetic steel stator winding.

Preferably, said slowing-down structure is variable-speed bearing or harmonic wave speed changer.

Preferably, said check configuration is a ratchet device.

Preferably, stator core is fixed in fixed axis through the platen thigh.

Interchangeablely be, said motor also comprises fixed axis, said fixed axis through slowing-down structure be combined with rotor, the outside of rotor is combined with a plurality of concentric stators (iron core and winding) that laterally arrange along the fixed axis length direction.

Preferably, said slowing-down structure is arranged between outermost two stators and the fixed axis.

Preferably, significantly under the situation of speed change, can use transformation, frequency conversion mode to handle the rotating speed problem of rotor at needs.

The beneficial effect of the utility model is, through parallel connection motor stator core and winding be set, can realize the grouping control of winding, for example, be merely two or two windings energisings, like this, can realize adjusting in view of the above to the motor power output.The stator connection type of this parallel connection goes for the internal stator motor, and internal rotor, external rotor compound machine.

In the embodiment of inside and outside rotor compound machine, internal rotor and inboard winding interact, and external rotor and outside winding interact; Like this; Just can control the rotation of external rotor respectively, and rotation of inner rotor, internal rotor can be realized the driving of low-speed big owing to slowing down through reducing gear; This when electric motor starting, and as output high pulling torque occasion very helpful.The parts that external rotor then can be used as conventional running use.For example when electric motor starting, external rotor rotates under the driving of outside winding, and if inboard winding is also switched on, then internal rotor also rotates in the lump, and the moment of torsion of inboard is passed to external rotor through reducing gear and unidirectional mechanism, and the output torque of external rotor is increased.And after motor starts smoothly, then can stop power supply to inboard winding, like this, under the effect of unidirectional mechanism, only outside winding drives the external rotor rotation, does conventional motion.The output of such high pulling torque also can be carried out and not influence its operate as normal in any time of machine operation.

Another kind of preferred embodiment as the utility model; Only there is the motor of internal rotor also to be applicable to the configuration of this multiple stators iron core winding, in this configuration, because each stator core winding parallel connection; The winding of work done be can select arbitrarily, thereby power, the moment of torsion output of this motor controlled.

For example; Elevator, tower crane, electric motor car, iron and steel with roll wheel, drive line motor, oil-field oil pumper motor, etc. to moment, power requirement change greatly, reliability high (hot machine shutdown, disorderly closedown) requirement can work on; Do not shut down at once; This motor variable power, but variable force is apart from alternate run, uninterruptedly continue work.

For another: frequency of utilization is low; Require the operating mode of high guarantee degree; Like: siren, lung ventilator, undercarriage, machine rudder, militaryly prepare for war, rescue and relief work, cannon manipulation, telecommunications, hospital, stand-by power supply starting equipment, fire-fighting armory auto-door driving mechanism etc., be example with four stator motors, possess 15 kinds of combinations, 14 kinds of alternative compound modes; 8 kinds of equivalent combinations modes possess the performance of high guarantee degree.

Also can be used for high-precision robot, for example mechanical arm drives the field.

In a preferred embodiment, slowing-down structure adopts existing variable-speed bearing or harmonic wave speed changer, and it is the volume of reduction device effectively.

Description of drawings

Fig. 1 a is the line graph of traditional common two-phase motor;

Fig. 1 b is the line graph of traditional common three phase alternating current motor;

Fig. 2 a is the circuit connecting line figure of the two-phase motor among a kind of embodiment of the utility model;

Fig. 2 b is the circuit connecting line figure of the three phase alternating current motor among a kind of embodiment of the utility model;

Fig. 3 is the structural representation according to a kind of parallel multiple stators iron core winding electric machine of the utility model;

Fig. 4 is the structural representation according to the another kind of parallel multiple stators iron core winding electric machine of the utility model.

Embodiment

Multiple stators connecting line construction in the utility model goes for various motors, comprises brush direct current motor, alternating current machine, universal motor, stepping department clothes motor, drag cup motor etc., the brushless hybrid electric motor of DC brush.

Motor among each embodiment in the utility model all has two or more stator core winding; And these stator core winding all are connected in parallel in power supply; According to the difference of motor type, power supply can be DC power supply, two-phase alternating current source and three-phase alternating-current supply.

In a kind of specific embodiment; With reference to Fig. 2 a; Related motor is a two-phase motor; Stator core that it comprises and winding are four (100,200,300,400), through after the series capacitance, are connected in parallel in the two-phase alternating current source of 220V again through switching device (S1, S2, S3, S4) respectively.In another kind of embodiment; Shown in Fig. 2 b; Related motor is a three phase alternating current motor, and stator core that it comprises and winding are four (100,200,300,400), is connected in parallel in the three-phase alternating-current supply of 380V respectively through switching device (S1, S2, S3, S4).Through this configuration, the stator of folding adjustment work done that can be through selector switch, arbitrarily the work stator of each motor in the utility model is made combination selection, thereby adjust the power output of motor.Corresponding electric machine structure can be for mechanically and together a plurality of common external rotor electric machine, inner rotor motor.

This set is equivalent to provide redundant, improved the reliability of motor effectively for low-power machine.In addition, the climbing that the advantage of adjustable power also is embodied in electric bicycle motor is provided with the aspect, and through adjustment switch (S1 to S4), motor can realize from for example only partial stator energising work done, to the work done of all switching on of all windings.

In another kind was used, the winding construction of parallel connection can realize that power output control and moment that hoist engine zero load, heavy duty etc. to equipment such as crane, boat car, elevators are used control.

In another kind was used, the parallel circuits structure of the utility model can also be used for the startup of blower fan, water pump, the automatic control of normality running.

Said switch can be the electronic switch that multichannel manual control switch, multi-channel remote control switch, programmable switch, computer system have line traffic control, wireless computer network remote control switch system etc.

Certainly, the structure of motor of the present invention is not limited to the parallel connection combination of common motor, and motor can also be the motor with following ad hoc structure.

In one embodiment, with reference to Fig. 3, this motor is that the external rotor 10 of a kind of internal rotor, external rotor combined type motor, this kind motor is the power output element.The axial cross section of external rotor is illustrated in figure 3 as an I-shape construction; It comprises spider 11 and circumferential outer rim 12; Spider 12 respectively is used to hold stator 30A, 30B with the axial valley that circumferential outer rim 11 has defined two symmetries; Each stator is tied with inside and outside two-layer winding (31 and 32,33 and 34) respectively on the different radii position on its iron core; Wherein the

winding

31,33 of internal layer is corresponding with an

internal rotor

41,42 respectively, outer field winding 32,34 then with inboard magnet steel 71, the 72 corresponding effects of external rotor outer rim 11.Stator core is fixed in a fixed axis 20 through a

platen

81,82 respectively.On the

internal rotor

41,42 magnet is arranged, it is through reducing gear 60, for example variable-speed bearing or harmonic speed reducer; Be matched with on the fixed axis 20; Reducing gear 6 is through be matched with the unidirectional mechanism 50 on the fixed axis 5 equally simultaneously, and this unidirectional mechanism can be a ratchet mechanism for example, is matched with external rotor 10.

For example; When adopting variable-speed bearing as reducing gear; The steel wheel part of variable-speed bearing is fixedly connected with the side of internal rotor; The flexbile gear that is mated part is then fixed with the integrated disc portions of ratchet, and the ratchet part then is fixed in the mid-game of external rotor, and internal rotor, variable-speed bearing and ratchet mechanism are all rotating is matched with on the fixed axis.

The form that is provided with of the winding of this motor can be according to stator type, and promptly two phases or three-phase are selected any one mode among Fig. 2 a or the 2b.Can control total output torque of motor through the folding of control switch S1 to S4.

The beneficial effect of this electric machine structure is that internal rotor can provide extra moment of torsion for external rotor, makes the output torque of motor increase; In addition, the structure of inside and outside rotor is arranged so that electric machine structure is compact more, and the coupled structure of internal rotor and external rotor is arranged on motor internal; Make that the external structure design of motor is more flexible, in addition, through the unidirectional mechanism that is provided with; For example ratchet mechanism can guarantee that it can not have influence on internal rotor when only external rotor rotates.

In another embodiment; As shown in Figure 4, a kind of multiple stators of inner-rotor-type, multiple rotor electric machine, wherein; Axle 20 output shafts as motor; Output shaft matches with motor body 10 through reducing gear 60 and bearing arrangement 61, and wherein, reducing gear 60 can be variable-speed bearing or harmonic speed reducer.Be provided with four stators 30 side by side on motor body 10, stator comprises iron core and winding, has defined four cells arranged side by side at motor body 10 and stator; All be provided with a rotor 40 in each cell; Rotor 40 is through a unidirectional mechanism 50, and for example ratchet mechanism links to each other with axle 20.The winding of said stator can be like the connected mode of Fig. 2 a or 2b, and can control the total power output of motor through control switch S1 to S4.

Though the form of the utility model through embodiment provided several kinds of motor structure has been set; But one of ordinary skill in the art should be clear, and the protection range of the utility model also should cover other possible motor form and connect control relation as long as it has embodied parallel circuit.

Being merely the utility model preferred embodiment in sum, is not the practical range that is used for limiting the utility model.All equivalences of doing according to the content of the utility model claim change and modify, and all should belong to the technological category of the utility model.

Claims

1. the integrated driving differential of the many rotors of a multiple stators synchronous mode motor is characterized in that: have two above stators in the motor at least; And a plurality of rotors that act on mutually with these two above stators, the power end of said each winding is connected in parallel in power supply.

2. the integrated driving differential of the many rotors of multiple stators according to claim 1 synchronous mode motor, it is characterized in that: the power of each stator is unequal in the motor cuts apart.

3. the integrated driving differential of the many rotors of multiple stators according to claim 2 synchronous mode motor, it is characterized in that: stator is four, the power partitioning scheme is 1/10,2/10,2/10 or 5/10.

4. the integrated driving differential of the many rotors of multiple stators according to claim 1 synchronous mode motor, it is characterized in that: said motor is alternating current machine, direct current machine, universal motor, department's clothes motor, drag cup motor.

5. the integrated driving differential of the many rotors of multiple stators according to claim 1 synchronous mode motor; It is characterized in that: said motor also comprises fixed axis; Through the internal rotor on slowing-down structure cooperation and the fixed axis; And the external rotor that cooperates with this slowing-down structure through check configuration; Zone between internal rotor and external rotor is provided with annular a pair of stator core, on each stator core, be respectively equipped with and the interactional inner ring stator winding of internal rotor upper magnetic steel, and with the interactional outer ring of external rotor upper magnetic steel stator winding.

6. the integrated driving differential of the many rotors of multiple stators according to claim 5 synchronous mode motor, it is characterized in that: stator core is fixed in fixed axis through the platen thigh.

7. the integrated driving differential of the many rotors of multiple stators according to claim 1 synchronous mode motor; It is characterized in that: said motor also comprises fixed axis; Said fixed axis is through slowing-down structure and be combined with rotor, and the outside of rotor is combined with a plurality of concentric stators that laterally arrange along the fixed axis length direction.

8. according to claim 5 or the integrated driving differential of the many rotors of 7 described multiple stators synchronous mode motor, it is characterized in that: said slowing-down structure is variable-speed bearing or harmonic wave speed changer.

9. the integrated driving differential of the many rotors of multiple stators according to claim 5 synchronous mode motor, it is characterized in that: said check configuration is a ratchet device.

10. the integrated driving differential of the many rotors of multiple stators according to claim 7 synchronous mode motor, it is characterized in that: said slowing-down structure is arranged between outermost two stators and the fixed axis.

11. the integrated driving differential of the many rotors of multiple stators according to claim 1 synchronous mode motor is characterized in that: said stator is to comprise the stator of iron core and winding or do not have the stator that iron core only comprises stator winding.