Common outer rotor intersects cascade double motor group
Technical field
The utility model is related to technical field of motors, intersect more specifically to a kind of common outer rotor cascade double
Motor unit.
Background technology
The existing following defects of common electric machine generally existing:When rotating speed decline when rotor output big torque, when rotating speed is high
Then the problem of torque drop;Second is that when heavy-duty motor starts, common electric machine because of 5-8 times that starting current is volume streaming current,
Low rate start power-supply device and reactive power compensator etc. are needed thus, thus to making cost greatly improve.
Utility model content
The purpose of this utility model is to provide a kind of common outer rotors to intersect cascade double motor group, solves existing
In technology the problem of defect present in motor.
The utility model technical scheme applied to solve the technical problem is:A kind of cascade double electricity of common outer rotor intersection
Motivation group, including the first internal rotor and the second internal rotor, first internal rotor is outer and second internal rotor also each divides outside
Be not arranged be equipped with the first outer rotor that between first internal rotor mutual electromagnetic incudes and with second internal rotor it
Between mutual electromagnetic incude the second outer rotor, first outer rotor and the second outer rotor pass through common outer rotor case end cap phase
It connects to form common outer rotor.
In the double motor group of the utility model, the double motor group further includes the first central shaft and the second center
Correspondence is set in first central shaft periphery and second central shaft respectively for axis, first internal rotor and the second internal rotor
Periphery, first central shaft are set up in parallel with the second central shaft along axis, first internal rotor and second internal rotor
On be respectively arranged with conductive coil, the double motor group further includes the conductive coil of respectively described first internal rotor and for institute
State an at least power supply for the conductive coil power supply of the second internal rotor.
In the double motor group of the utility model, first outer rotor and second outer rotor be respectively facing pair
Silicon steel sheet or alnico magnets are respectively installed on the side side wall of first internal rotor and second internal rotor answered.
In the double motor group of the utility model, first central shaft and second central shaft are respectively by described
First flange and the second flange location and installation;First internal rotor and second internal rotor respectively with it is corresponding described
First central shaft and the second central shaft are fixedly connected.
In the double motor group of the utility model, the first outer rotor rotation is set in outside first internal rotor,
Second outer rotor rotates under first outer rotor drive.
In the double motor group of the utility model, first central shaft is fixedly connected in the first flange and limits
The first internal rotor rotation is made, second central axis is connected in the second flange and with second internal rotor
Rotation and rotate.
In the double motor group of the utility model, it is arranged on second central shaft and collector ring is installed.
In the double motor group of the utility model, first central shaft is fixedly connected on the corresponding first flange
Above and the first internal rotor rotation is limited, second central shaft is fixedly connected in the corresponding second flange and limits
The second internal rotor rotation, first outer rotor and second outer rotor are rotatably connected on respectively in corresponding first
In mandrel and the second central shaft.
In the double motor group of the utility model, it is also associated on second outer rotor and turns with second outer rotor
Dynamic and rotation first gear circle, the first gear snare are located at second central shaft periphery, the first gear circle
Outside also meshes with the second gear circle for rotating and rotating with the first gear circle, be also arranged in the second gear circle with
The output shaft of the second gear circle rotation and rotation.
In the double motor group of the utility model, first central shaft is connected with second central shaft, described
First outer rotor is fixed by the bracket with second outer rotor, the inner wall of first outer rotor and second outer rotor
Conductive coil is respectively arranged on inner wall, first internal rotor and second internal rotor are respectively one-way communication induction electric
Machine, three-phase alternating-current induction motor or dc motor, the double motor group further include respectively described first outer rotor
Conductive coil and for second outer rotor conductive coil power an at least power supply.
The common outer rotor for implementing the utility model intersects cascade double motor group, has the advantages that:This reality
Intersect cascade double motor group with novel common outer rotor and the superposition of speed or torque may be implemented, and difference can be passed through
Starting one of motor realization avoids starting current excessive.
Description of the drawings
Fig. 1 is the structural representation that the common outer rotor of the utility model intersects the first embodiment of cascade double motor group
Figure;
Fig. 2 is the structural representation that the common outer rotor of the utility model intersects the second embodiment of cascade double motor group
Figure;
Fig. 3 is the structural representation that the common outer rotor of the utility model intersects the 3rd embodiment of cascade double motor group
Figure.
Specific implementation mode
With reference to the accompanying drawings and examples, the knot of cascade double motor group is intersected to the common outer rotor of the utility model
Structure and its action principle are described further:
In the description of the present invention, it should be understood that term "center", " longitudinal direction ", " transverse direction ", "upper", "lower",
The instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " clockwise ", " counterclockwise "
Orientation or positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model and simplification
Description, does not indicate or imply the indicated device or element must have a particular orientation, with specific azimuth configuration and behaviour
Make, therefore should not be understood as limiting the present invention.
The common outer rotor of the utility model intersects the superposition that speed or torque may be implemented in cascade double motor group, and
Starting current can be avoided excessive by the way that one of motor realization is respectively started.
As shown in Figs. 1-3, it includes the first central shaft 1, the second central shaft 2 that common outer rotor, which intersects cascade double motor group,
And the first internal rotor 3 for being set in 1 periphery of the first central shaft and the second internal rotor 4 for being set in 2 periphery of the second central shaft, the
One central shaft 1 is set up in parallel with the second central shaft 2 along axis, is also each covered respectively outside the first internal rotor 3 and outside the second internal rotor 4
If being equipped with the first outer rotor 5 and the mutual electromagnetic between the second internal rotor 4 that mutual electromagnetic incudes between the first internal rotor 3
Second outer rotor 6 of induction, the first outer rotor 5 and the second outer rotor 6 are interconnected to form by common outer rotor case end cap 7
Common outer rotor.
Embodiment 1:
As shown in Figure 1, in the present embodiment, conductive coil is respectively arranged on the first internal rotor 3 and the second internal rotor 4
(not indicated in figure), double motor group further include the respectively conductive coil of the first internal rotor 3 and the conduction for the second internal rotor 4
An at least power supply 8 for coil power supply.In the present embodiment, the quantity of power supply 8 is two, which is respectively in first
The conductive coil of the conductive coil of rotor 3 and the second internal rotor 4 is powered;In other embodiments, can also only one power supply, but
Control switch supplies electricity to the conductive coil of the conductive coil and the second internal rotor 4 of the first internal rotor 3 respectively.It can supply respectively in this way
The conductive coil for supplying electricity to the conductive coil and the second internal rotor 4 of the first internal rotor 3, avoids power supply while supply leads to starting current
It is excessive.
First outer rotor 5 and the second outer rotor 6 are respectively facing the one of the first corresponding internal rotor 3 and the second internal rotor 4
Silicon steel sheet or alnico magnets (not indicated in figure) are respectively installed on the side wall of side.In this way, outer rotor can be with internal rotor
Electromagnetic induction field is formed between conductive coil.
First central shaft 1 and the second central shaft 2 pass through 10 location and installation of first flange 9 and second flange respectively.In first
Rotor 3 and the second internal rotor 4 are connected with 1 and second central shaft 2 of corresponding first central shaft respectively.
In the present embodiment, the first central shaft 1 and the second respectively work operation of central shaft 2.First central shaft 1 is fixedly connected
In first flange 9 and the rotation of the first internal rotor 3 is limited, the second central shaft 2 is rotatably connected in second flange 10 and with second
The rotation of internal rotor 4 and rotate.That is, the first central shaft 1 is motionless, the second central shaft 2 can rotate.
The rotation of first outer rotor 5 is set in outside the first internal rotor 3, and the second outer rotor 6 turns under the drive of the first outer rotor 5
It is dynamic.That is it links between the first outer rotor 5 and the second outer rotor 6.
In the present embodiment, the second central shaft 2 is output shaft, and the common outer rotor of the present embodiment intersects cascade double electricity
Motivation group can be superimposed output rotating speed, and torque is exported from the second central shaft 2 as output shaft.Therefore on the second central shaft 2
It is also arranged and collector ring 11 is installed.
The operation principle of the double motor group of the present embodiment:After powering for the conductive coil of the first internal rotor 3, in first
Electromagnetic induction field is formed between rotor 3 and the first outer rotor 5, the first internal rotor 3 is motionless due to the limitation of the first central shaft 1,
First outer rotor 5 rotates, speed V1, due to passing through common outer rotor shell between the first outer rotor 5 and the second outer rotor 6
Body end lid 7 is connected with each other, therefore the second outer rotor 6 can also rotate synchronously.At this point, being the conductor wire of the second internal rotor 4 again
Circle power supply, then the second internal rotor 4 rotates, speed V2, while also can shape between the second internal rotor 4 and the second outer rotor 6
At electromagnetic induction field, therefore the stack velocity of the second internal rotor 4 is V1+V2, realizes the output of high rotational speed and torque.The present embodiment
In can also realize and output is turned by a power supply 8 simultaneously to the motor power transmission frequency modulation of the first outer rotor 5 and the second outer rotor 6
The stepless speed regulation of square.Or the motor power transmission of the first outer rotor 5 and the second outer rotor 6 is realized pair respectively with two variable-frequency power sources
The stepless speed regulation of output torque, both is within the protection scope of the present invention.
Embodiment 2:
Difference from Example 1 is:First central shaft 1 is fixedly connected in corresponding first flange 9 and limits
One internal rotor 3 rotates, and the second central shaft 2 is similarly fixedly connected in corresponding second flange 10 and limits the second internal rotor 4
Rotation, the first outer rotor 5 and the second outer rotor 6 are rotatably connected on 1 and second central shaft 2 of corresponding first central shaft respectively
On.
In addition, the first gear circle 12 for rotating and rotating with the second outer rotor 6 is also associated on the second outer rotor 6, first
Gear ring 12 is set in 2 periphery of the second central shaft, the outside of first gear circle 12 also meshed with the rotation of first gear circle 12 and
The second gear circle 13 of rotation is also arranged with the output shaft 14 for rotating and rotating with second gear circle 13 in second gear circle 13,
Output torque.
The operation principle of the double motor group of the present embodiment:After powering for the conductive coil of the first internal rotor 3, in first
Electromagnetic induction field is formed between rotor 3 and the first outer rotor 5, the first internal rotor 3 makes since the limitation of the first central shaft 1 is motionless
It obtains the first outer rotor 5 to rotate, due to passing through common outer rotor case end cap 7 between the first outer rotor 5 and the second outer rotor 6
It is connected with each other, the second outer rotor 7 is connected further through first gear circle 12 and second gear circle 13 with output shaft 14, therefore at this time
Can be M1 with output torque.Can be that the conductive coil of the second internal rotor 4 is powered when needing to increase torque, the second internal rotor 4
Electromagnetic induction field is formed between the second outer rotor 6, the second internal rotor 4 is motionless due to the limitation of the second central shaft 2 so that second
Outer rotor 6 rotates, and the torque that can be exported is M2, so that the torque on output shaft 14 is superposed to M1+M2, is formed
Bimoment exports.In the conductive coil and second for needing high-torque that can also supply electricity to the first internal rotor 3 when starting occasion simultaneously
The conductive coil of internal rotor 4 directly acquires the big rotating torque of superposition.
It should be noted that first gear circle 12 and second gear circle 13 in the present embodiment can also by toothed belt,
The replacements such as V belt or chain, output torque.And the common outer rotor of the present embodiment intersects cascade double motor group
It can realize electrodeless variable-speed by frequency converter governing speed, both be within the protection scope of the present invention.
Embodiment 3:
As shown in figure 3, the first central shaft 1 is connected with second central shaft 2, the two is preferably an integral molding structure,
The two can also be independent individual and by interconnections such as screws, i.e. one end end of the first central shaft 1 and the second central shaft 2
One end end be connected with each other.The first central shaft 1 and 2 common one of the second central shaft being connected are used as output shaft.
Wherein, the first outer rotor 5 is fixed with the second outer rotor 6 by holder 15, in the inner wall and second of the first outer rotor 5
Conductive coil is respectively arranged on the inner wall of outer rotor 6, and the first internal rotor 3 and the second internal rotor 4 can be respectively unidirectional
Induction alternating current (AC) motor, three-phase alternating-current induction motor or dc motor etc..And in the present embodiment, double motor group is same
At least power supply 8 powered including the conductive coil of the first outer rotor 5 respectively and for the conductive coil of the second outer rotor 6.At this
In embodiment, the quantity of power supply 8 is two, which is respectively the conductive coil and the second outer rotor of the first outer rotor 5
6 conductive coil power supply;In other embodiments, can also only one power supply 8, but control switch supplies electricity to turn outside first respectively
The conductive coil of the conductive coil and the second outer rotor 6 of son 5.It can supply electricity to the conductive coil of the first outer rotor 5 respectively in this way
With the conductive coil of the second outer rotor 6, avoids power supply 8 while supply causes starting current excessive.
The operation principle of the double motor group of the present embodiment:After powering for the conductive coil of the first outer rotor 5, in first
Electromagnetic induction field, the rotation of the first internal rotor 3 are formed between rotor 3 and the first outer rotor 5;When for the conductor wire of the second outer rotor 6
After circle power supply, electromagnetic induction field, the second internal rotor 4 rotation so that first are formed between the second internal rotor 4 and the second outer rotor 6
The output shaft that central shaft 1 and the second central shaft 2 are integrally formed obtains double output torque M1+M2.When using heavy-duty motor,
For the inrush current for avoiding big, it can be first that the conductive coil of the first outer rotor 5 is powered, the first internal rotor 3 is made first to rotate
Come, is then that the conductive coil of the second outer rotor 6 is powered again, restarts the second internal rotor 4, output torque is made to increase.This implementation
Example can also realize variable speed torque output by variable frequency power source, both be within the protection scope of the present invention.
It should be understood that it will be understood by those skilled in the art that it can be modified or changed according to the above description, but this
A little improvement or transformation should all belong within the protection domain of the appended claims for the utility model.