CN115720038A - Forward and reverse rotation double-rotor motor and multi-stator multi-rotor motor - Google Patents
Forward and reverse rotation double-rotor motor and multi-stator multi-rotor motor Download PDFInfo
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- CN115720038A CN115720038A CN202211395546.2A CN202211395546A CN115720038A CN 115720038 A CN115720038 A CN 115720038A CN 202211395546 A CN202211395546 A CN 202211395546A CN 115720038 A CN115720038 A CN 115720038A
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Abstract
The invention provides a positive and negative rotation double-rotor motor and a multi-stator multi-rotor motor, wherein the positive and negative rotation double-rotor motor comprises m sets of k-phase windings, each set of k-phase windings uniformly surrounds a stator iron core, k is an integer of 2 and more than 2, and m is an integer of 1 and more than 1; the positive rotor is arranged on one side of the stator core, 2 (pk + 1) × m magnet units I are uniformly distributed on one side of the positive rotor opposite to the stator core, and p is an integer not less than 0; the stator comprises a stator core, a counter rotor and a plurality of magnet units, wherein the counter rotor is arranged on the other side of the stator core, 2 (nk-1) × m magnet units II are uniformly distributed on one side of the counter rotor opposite to the stator core, and n is a positive integer; when power is supplied to the k-phase winding, the positive rotor and the negative rotor respectively rotate in opposite directions on both sides of the stator core at the same time, and the rotation speed ratio is (pk + 1)/(nk-1).
Description
Technical Field
The invention relates to a positive and negative rotation motor, in particular to a positive and negative rotation double-rotor motor and a multi-stator multi-rotor motor.
Background
A conventional motor structure generally includes a stator core, a set of windings wound around the stator core teeth, and a rotor on one side of the stator core teeth, wherein a symmetric alternating current is applied to the windings through a driver to generate a rotating magnetic field, the rotating magnetic field interacts with a magnetic field generated by the rotor to realize electromechanical energy conversion, and the rotating direction of the rotor can be changed by changing the phase sequence of the alternating current.
However, since the windings are arranged around the teeth, one set of windings can only be matched with one rotor, so when the forward and reverse rotation is performed and output simultaneously, one set of windings must be used to be matched with the second rotor, and the two sets of windings need to be separately driven by two drivers, or a gear box capable of performing the forward and reverse rotation and output simultaneously is added at the output end of the motor for use.
Currently, CN110676997a discloses a permanent magnet generator with a positive and negative dual rotor, which includes a housing, and an external rotor, an internal rotor, a central rotating shaft, a driving wheel, a driven wheel, a driving wheel and a heat dissipation fan inside the housing. The outer rotor and the inner rotor of the generator do synchronous constant-speed one-positive-one-negative rotation, so that the relative rotation speed of the outer rotor and the inner rotor of the generator is doubled, and the generator is suitable for a double-speed scene.
For a non-double speed scene, an effective solution is not available at present how to enable an outer rotor and an inner rotor of a generator to synchronously rotate at different speeds in a positive-negative mode.
In order to solve the above problems, people are always seeking an ideal technical solution.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a positive and negative rotation double-rotor motor and a multi-stator multi-rotor motor.
In order to achieve the purpose, the invention adopts the technical scheme that: a positive and negative rotation double-rotor motor comprising:
1 stator core;
m sets of k-phase windings, wherein each set of k-phase windings uniformly surrounds the stator iron core, k is an integer of 2 or more than 2, and m is an integer of 1 or more than 1;
the positive rotor is arranged on one side of the stator core, 2 (pk + 1) × m magnet units I are uniformly distributed on one side of the positive rotor opposite to the stator core, and p is an integer not less than 0;
the stator comprises a stator core, a counter rotor and a plurality of magnet units, wherein the counter rotor is arranged on the other side of the stator core, 2 (nk-1) × m magnet units II are uniformly distributed on one side of the counter rotor opposite to the stator core, and n is a positive integer;
when power is supplied to the k-phase winding, the positive rotor and the negative rotor respectively rotate in opposite directions on two sides of the stator core at the same time, and the rotation speed ratio is (pk + 1)/(nk-1).
Preferably, the stator core is a circular ring core, the positive rotor and the negative rotor are both arranged coaxially with the stator core, and the positive rotor and the negative rotor are respectively arranged at the inner side and the outer side of the stator core and respectively form an air gap with the inner peripheral wall and the outer peripheral wall of the stator core;
the equivalent magnetic pole directions of the magnet unit I of the positive rotor and the magnet unit II of the negative rotor are parallel to the radius direction of the stator core.
Preferably, the stator core is a disc-shaped core, the positive rotor and the negative rotor are both arranged coaxially with the stator core, and the positive rotor and the negative rotor are respectively arranged at two axial sides of the stator core and respectively form an air gap with an axial side wall of the stator core;
the equivalent magnetic pole directions of the magnet unit I of the positive rotor and the magnet unit II of the negative rotor are parallel to the axial direction of the stator core.
The second aspect of the present invention provides a forward/reverse rotation multiple-stator multiple-rotor motor, comprising:
the motor comprises N coaxially arranged single-stator and double-rotor motor structures, wherein any two adjacent single-stator and double-rotor motor structures are nested, and N is an integer of 2 or more than 2;
the single-stator dual-rotor motor structure is the forward and reverse-rotor motor, the stator core is a circular iron core, the forward rotor and the reverse rotor are coaxially arranged with the stator core, and the forward rotor and the reverse rotor are respectively arranged at the inner side and the outer side of the stator core and respectively form air gaps with the inner peripheral wall and the outer peripheral wall of the stator core; the equivalent magnetic pole directions of the magnet unit I of the positive rotor and the magnet unit II of the negative rotor are both parallel to the radius direction of the stator core;
the number of the k-phase windings annularly arranged on the stator iron core of any two single-stator double-rotor motor structures is independent and does not interfere with each other.
A third aspect of the present invention provides a forward/reverse rotation multiple-stator multiple-rotor motor, including:
n coaxially arranged single-stator double-rotor motor structures, wherein any two adjacent single-stator double-rotor motor structures are arranged in parallel along the axial direction, and N is an integer of 2 or more than 2;
the single-stator double-rotor motor structure is the positive and negative rotation double-rotor motor; the number of the k-phase windings annularly arranged on the stator iron core of any two single-stator double-rotor motor structures is independent and does not interfere with each other.
The fourth aspect of the present invention provides a positive/negative rotation multiple-stator multiple-rotor motor, comprising:
1 stator core;
m sets of k-phase windings, wherein each set of k-phase windings uniformly surrounds the stator iron core, k is an integer of 3 or more than 3, and m is an integer of 1 or more than 1;
the rotor I is embedded and arranged on the inner side of the stator core, 2 (pk + 1) × m magnet units I are uniformly distributed on one side of the rotor I opposite to the stator core, and p is an integer not less than 0;
the rotor II is embedded and sleeved outside the stator core, 2 (nk-1) × m magnet units II are uniformly distributed on one side of the rotor II opposite to the stator core, and n is a positive integer;
the rotor III is arranged on one axial side of the stator core in parallel, 2 (pk + 1) × m magnet units I are uniformly distributed on one side of the rotor III opposite to the stator core, and p is an integer not less than 0;
the rotor I V is arranged on the other axial side of the stator core in parallel, 2 (nk-1) × m magnet units II are uniformly distributed on one side, opposite to the stator core, of the rotor I V, and n is a positive integer;
when power is supplied to the k-phase winding, the rotor I and the rotor II rotate towards mutually opposite directions at the inner side and the outer side of the stator core simultaneously respectively, and the rotating speed ratio is (pk + 1)/(nk-1); the rotor III and the rotor IV respectively rotate towards opposite directions at two sides of the axial direction of the stator core at the same time, and the rotating speed ratio is (pk + 1)/(nk-1).
A fifth aspect of the present invention provides a positive-negative rotation multi-stator multi-rotor motor, including:
1 stator core;
m sets of k-phase windings, wherein each set of k-phase windings uniformly surrounds the stator iron core, k is an integer of 3 or more than 3, and m is an integer of 1 or more than 1;
the rotor I is embedded and sleeved outside the stator core, 2 (pk + 1) × m magnet units I are uniformly distributed on one side of the rotor I opposite to the stator core, and p is an integer not less than 0;
the rotor II is embedded and sleeved on the inner side of the stator core, 2 (nk-1) × m magnet units II are uniformly distributed on one side of the rotor II opposite to the stator core, and n is a positive integer;
the rotor III is arranged on one axial side of the stator core in parallel, 2 (pk + 1) × m magnet units I are uniformly distributed on one side of the rotor III opposite to the stator core, and p is an integer not less than 0;
the rotor IV is arranged on the other axial side of the stator core in parallel, 2 (nk-1) × m magnet units II are uniformly distributed on one side of the rotor IV opposite to the stator core, and n is a positive integer;
when power is supplied to the k-phase winding, the rotor II and the rotor I rotate towards mutually opposite directions at the inner side and the outer side of the stator core simultaneously respectively, and the rotating speed ratio is (pk + 1)/(nk-1); the rotor III and the rotor IV respectively rotate towards opposite directions at two sides of the axial direction of the stator core at the same time, and the rotating speed ratio is (pk + 1)/(nk-1).
Compared with the prior art, the invention has outstanding substantive characteristics and obvious progress, and particularly, the invention utilizes the principle that a plurality of equivalent magnets which rotate forwards and a plurality of equivalent magnets which rotate backwards exist in an air gap after the windings are electrified, and the two rotors are respectively matched with the equivalent magnet number of the forward rotating part and the equivalent magnet number of the reverse rotating part, thereby realizing the function of forward and reverse rotation of a set of windings and a driver at the same time, and the rotating speed ratio is (pk + 1)/(nk-1);
the stator core is arranged to be a circular ring core, the positive rotor and the negative rotor are coaxially arranged with the stator core, and the positive rotor and the negative rotor are respectively arranged on the inner side and the outer side of the stator core and respectively form air gaps with the inner peripheral wall and the outer peripheral wall of the stator core; the equivalent magnetic pole directions of the magnet unit I of the positive rotor and the magnet unit II of the negative rotor are both parallel to the radius direction of the stator core, so that a radial motor is formed;
the stator core is arranged to be a disc-shaped core, the positive rotor and the negative rotor are coaxially arranged with the stator core, the positive rotor and the negative rotor are respectively arranged on two axial sides of the stator core, and air gaps are respectively formed between the positive rotor and the negative rotor and the axial side walls of the stator core; the equivalent magnetic pole directions of the magnet unit I of the positive rotor and the magnet unit II of the negative rotor are parallel to the axial direction of the stator core to form an axial motor;
the multiple axial motors are arranged in parallel along the axial direction to form a forward and reverse rotating multi-stator and multi-rotor motor, the multiple radial motors are arranged in a nested manner to form a forward and reverse rotating multi-stator and multi-rotor motor, and the forward and reverse rotating multi-stator and multi-rotor motor shares adjacent forward rotors or reverse rotors so as to simplify the structure and reduce the volume; the positive and negative rotation multi-stator and multi-rotor motor integrating the axial motor and the radial motor is formed by utilizing 1 stator core, m sets of k-phase windings, a rotor I and a rotor II which are embedded and sleeved on the inner side and the outer side of the stator core, and a rotor III and a rotor IV which are arranged on the two axial sides of the stator core in parallel.
Drawings
Fig. 1 is an overall structural view of a counter-rotating dual-rotor motor in which m =1,k =3,p =0,n =1 and a stator is not slotted in embodiment 2.
Fig. 2 is an exploded view of parts of the forward and reverse rotation double rotor motor shown in fig. 1.
Fig. 3 is an axial sectional view of the counter-rotating double-rotor motor shown in fig. 1.
Fig. 4 is an overall structural view of a forward/reverse rotation double-rotor motor in which m =1,k =3,p =0,n =1 and a stator is slotted in embodiment 3.
Fig. 5 is an exploded view of the components of the counter-rotating dual-rotor motor shown in fig. 4.
Fig. 6 is an axial sectional view of the counter-rotating dual-rotor motor shown in fig. 4.
Fig. 7 is an overall structural view of a forward/reverse rotation double-rotor motor in which m =1,k =4,p =1,n =1 and a stator is slotted in embodiment 4.
Fig. 8 is an exploded view of the parts of the forward and reverse rotation double rotor motor shown in fig. 7.
Fig. 9 is an axial sectional view of the counter-rotating double-rotor motor shown in fig. 7.
Fig. 10 is a simulation diagram of the overall structure of a forward-reverse double-rotor motor in which m =4,k =3,p =0,n =1 and the stator is not slotted in embodiment 5.
Fig. 11 is the back-emf (300 rpm) for a single forward rotating rotor.
FIG. 12 is the back-emf (-150 rpm) with the counter-rotating rotor alone.
Fig. 13 is a counter potential under the rotation of the double rotors together.
Fig. 14 shows the motor torque after the alternating current is applied to the 3-phase same-direction ring yoke winding.
Fig. 15 is a simulation diagram of another overall structure of a forward-reverse double-rotor motor in which m =4,k =3,p =0,n =1 and a stator is not slotted in embodiment 5.
Fig. 16 is a counter electromotive force under rotation of the double rotors together in the double-rotor motor for forward and reverse rotation shown in fig. 15.
Fig. 17 shows motor torque obtained by applying ac power to the 3-phase homodromous yoke winding of the counter-rotating double-rotor motor shown in fig. 15.
Fig. 18 is an overall structural view of a forward-reverse rotation dual-rotor motor in which m =1,k =3,p =0,n =1 and a stator is not slotted in embodiment 6.
Fig. 19 is an exploded view of the components of the counter-rotating dual-rotor motor shown in fig. 18.
Fig. 20 is a simulation diagram of the entire structure of the forward/reverse rotation multiple-stator multiple-rotor motor in example 9 where m =1,k =3,p =0,n =1.
Fig. 21 is an exploded view of the components of the counter-rotating multiple stator multiple rotor machine shown in fig. 20.
In the figure, 1. Positive rotor; 2. a magnet unit I;3. a counter-ion; 4. a magnet unit II;5. a stator core; 51. a winding; 511. a first axial segment; 512. a second axial segment; 513. a connecting section; 52. a stator yoke; 53. a stator outer slot; 54. an inner stator groove; 61. a rotor I;62. a rotor II;63. a rotor III;64. and a rotor IV.
Detailed Description
The technical solution of the present invention is further described in detail by the following embodiments.
Example 1
The technical solution of the present invention is further described in detail by the following embodiments.
Example 1
This embodiment provides a positive reverse birotor motor, includes:
1 stator core 5;
m sets of k-phase windings 51, wherein each set of k-phase windings 51 uniformly surrounds the stator core 5, k is an integer of 2 or more, and m is an integer of 1 or more;
the positive rotor 1 is arranged on one side of the stator core 5, 2 (pk + 1) × m magnet units I2 are uniformly distributed on one side of the positive rotor 1 opposite to the k-phase winding 51, and p is an integer not less than 0;
the counter rotor 3 is arranged on the other side of the stator core 5, 2 (nk-1) × m magnet units II4 are uniformly distributed on one side of the counter rotor 3 opposite to the k-phase winding 51, and n is a positive integer;
when power is supplied to the k-phase winding 51, the positive rotor 1 and the negative rotor 3 are simultaneously rotated in opposite directions on both sides of the stator core 5, respectively, and the rotation speed ratio is (pk + 1)/(nk-1).
It should be noted that in this embodiment, n and p are independent from each other and do not interfere with each other.
Wherein, when k is an integer of 3 and 3 or more, the number of the magnet units I on the positive rotor is 2 (pk + 1) × m, the number of the magnet units II on the counter rotor is 2 (nk-1) × m, the rotation speed ratio of the positive rotor and the counter rotor is (pk + 1)/(nk-1), and the positive rotor and the counter rotor can only rotate differentially since pk +1 ≠ nk-1;
when k =2, the number of the magnet units I on the positive rotor is 2 (p + 1) × m, the number of the magnet units II on the negative rotor is 2 (n-1) × m, and the rotation speed ratio of the positive rotor and the negative rotor is (2p + 1)/(2 n-1); at this time, when p = n-1, 2p +1=2n-1, the positive rotor and the reverse rotor are in the same speed differential rotation; when p ≠ n-1, 2p +1 ≠ 2n-1, i.e. the positive rotor and the negative rotor may also be differential rotation.
In practical implementation, the stator core 5 has a continuous and complete wall surface, and the winding 51 is directly wound around the stator core 5. Specifically, the head end of each phase of winding 51 is located on a first side of stator core 5 facing a rotor, and the tail end is located on a second side of stator core 5 opposite to the first side; alternating current is supplied to each phase of the winding 51 along the head end of the winding 51 or along the tail end of the winding 51, so that a homodromous yoke winding 51 is formed, and a set of k-phase windings 51 surrounds the yoke of the stator core 5 and has the same winding direction.
It is understood that the winding 51 may also be other ring windings 51.
The principle of the embodiment is as follows: the magnetomotive force generated in the air gap when a sinusoidal alternating current is applied to the same direction yoke winding 51 can be expressed as a fourier series form as follows:
where N is the number of turns of a unidirectional toroid 51, I k Is the current amplitude, theta is the measured angle along the circumference,. Phi θ Is the spatial initial phase, psi, of the winding 51 i Is the current time initial phase;
let k be recorded as a, B, …, γ (total k) in turn to each phase of the yoke winding 51 in the same direction, and use the centerline of the a-phase winding 51 as the origin of space, and use the time origin of the maximum moment of the current of the a-phase winding 51 as the origin of time, then the ν -th harmonic magnetomotive force of each phase winding 51 is:
with the sum and difference formula:
expanding the formula (2) as follows:
further, the v-th harmonic component of the resultant magnetomotive force of the k-phase winding 51 can be expressed as:
f kv (θ，t)＝f Av (θ，t)+f Bv (θ，t)+K+f Υv (θ，t) (5)
as can be seen from the equation (4), there are three possibilities for the k-phase winding 51 to synthesize the v-th harmonic component of the magnetomotive force:
a) When v = pk +1 (p =0,1,2, …,), (4) the first of the two terms on the right of the equation is the same, and the second of the two terms on the right of the equation (4) adds 0; therefore, the resultant magnetomotive force of the k-phase winding 51 at this time can be expressed as:
at the moment, the synthetic magnetomotive force is forward rotating magnetomotive force, and the rotating speed is inversely proportional to the harmonic frequency v;
b) When v = nk-1 (n =1,2,3, …,), (4) the first of the two terms on the right of the equation is added to 0, and the second of the two terms on the right of the equation (4) is the same; therefore, the resultant magnetomotive force of the k-phase winding 51 at this time can be expressed as:
the synthetic magnetomotive force at the moment is reverse rotating magnetomotive force, and the rotating speed is in inverse proportion to the harmonic frequency v;
c) When ν ≠ pk +1 ≠ ν ≠ nk + k-1 (p =0,1,2, …,) (n =1,2,3, …,) (4) the first term and the second term in the right two terms of the equation (4) are added to be 0, so that the k-phase winding 51 synthesizes magnetomotive force of 0 at this time, i.e., there is no corresponding v-order harmonic.
Combining the above three analysis results, the magnetomotive force of the coil 51 of the k-phase same-direction ring yoke coil 51 when the symmetrical alternating current is applied is
Therefore, for the armature magnetic field of the homodromous yoke winding 51, v = pk +1 (p =0,1,2, …) subharmonic magnetomotive force of forward rotation and v = nk-1 (n =1,2,3, …) subharmonic magnetomotive force of reverse rotation exist in the air gap simultaneously, and the rotating speed is in inverse proportion to the harmonic number.
By using this principle, in the forward/reverse rotation dual-rotor motor according to the present embodiment, 2 (pk + 1) magnet units are provided on the side of the positive rotor 1 opposite to the stator core 5, where p is an integer not less than 0, and in the air gap on the positive rotor 1 side, the number of pole pairs (pk + 1) of the magnet units interacts with the (pk + 1) subharmonic component of the armature magnetic field rotating in the forward direction to generate a back electromotive force and a forward torque, so that the positive rotor 1 rotates in the forward direction; 2 (nk-1) magnet units are arranged on the side of the rotor 3 opposite to the stator core 5, n is a positive integer, in an air gap on the rotor 3 side, the magnetic pole pair number (nk-1) of the magnet units interacts with a (nk-1) subharmonic component rotating in the armature magnetic field in the opposite direction, so that counter potential and reverse torque are generated, and the rotor 3 rotates in the opposite direction; further, the counter potential generated by the forward rotation of the positive rotor 1 has the same phase as the counter potential generated by the reverse rotation of the counter rotor 3, which means that the positive rotor 1 and the counter rotor 3 can rotate in opposite directions simultaneously after the alternating current is applied to the set of homodromous yoke windings 51.
And, since the respective rotor rotation speeds are inversely proportional to the respective side operating harmonic numbers which match the pole pair numbers of the magnet units, the rotation speed ratio of the positive rotor 1 to the negative rotor 3 is (pk + 1)/(nk-1).
Example 2
The present embodiment provides a counter-rotating dual-rotor motor, as shown in fig. 1 to 3, where m =1,k =3, p =0, n =1.
The stator core 5 is a circular ring core, that is, the axial section of the stator core 5 is circular ring, the positive rotor 1 and the negative rotor 3 are both arranged coaxially with the stator core 5, and the positive rotor 1 and the negative rotor 3 are respectively arranged at the inner side and the outer side of the stator core 5, and respectively form independent air gaps with the inner peripheral wall and the outer peripheral wall of the stator core 5.
Specifically, a positive rotor 1 is arranged on the inner side of a stator core 5, and 2 magnet units I2 are uniformly distributed on the outer side wall of the positive rotor 1 opposite to the stator core 5; the rotor 3 is arranged at the outer side of the stator core 5, and 4 magnet units II4 are uniformly distributed on the inner side wall of the rotor 3 opposite to the stator core 5; preferably, the cross-sectional shapes of the magnet unit I2 and the magnet unit II4 are respectively set to be arc-shaped, that is, the magnet unit I2 and the magnet unit II4 are integrally in the shape of an arc plate or tile.
Specifically, the angular distance between the magnet unit I2 and the magnet unit II4 is set according to the number of magnet units, for example, for a 4-pole magnet unit, the adjacent magnet units are spaced by 90 degrees; and 2 magnetic units, adjacent magnetic units are separated by 180 degrees, so in this embodiment, any two adjacent magnetic units I2 are separated by 180-degree angular intervals, and any two adjacent magnetic units II4 are separated by 90-degree angular intervals.
Further, the equivalent magnetic pole directions of the magnet units I2 and II4 are alternately arranged, that is, N, S poles are alternately arranged. As shown in fig. 3, the directions of the arrows in the magnet unit I2 and the magnet unit II4 are equivalent magnetic pole directions, and are along the radial direction of the stator core 5, that is, the N pole or S pole of the magnet unit I2 and the magnet unit II4 is opposite to the axial direction of the stator core 5.
The 3-phase winding 51 uniformly surrounds the stator core 5, and the interval between the adjacent 2 phases is 120-degree. Furthermore, the outer circumferential wall and the inner circumferential wall of the stator core 5 are both continuous and complete wall surfaces, that is, no winding 51 slot is formed on the stator core 5, and the 3-phase winding 51 is directly wound on the inner and outer circumferential walls of the stator core 5 and is fixed by means of bonding, welding and the like.
In a specific implementation, each winding 51 coil comprises: a first axial section 511 opposed to the inner peripheral wall of the counter rotor 3; a second axial section 512 opposed to the outer peripheral wall of the positive rotor 1; and connecting sections 513 respectively connected to both ends of the first axial section 511 and the second axial section 512, wherein the first axial section 511 is opposite to the magnet unit II4, the second axial section 512 is opposite to the magnet unit I2, and the connecting sections 513 respectively connect the first axial section 511 and the second axial section 512 from both sides in the axial direction of the stator core 5.
When power is supplied to the 3-phase winding 51, the positive rotor 1 rotates forward inside the stator core 5, and the negative rotor 3 rotates backward outside the stator core 5 in the direction opposite to the direction in which the positive rotor 1 rotates, at a rotation speed ratio of (pk + 1)/(nk-1) =1/2.
Further, since the positive rotor 1 and the negative rotor 3 simultaneously rotate in opposite directions to each other during the motor operation, the relative positions of the magnet unit I2 and the magnet unit II4 are constantly changed.
Example 3
This example differs from example 2 in that: the stator core 5 is provided with winding 51 slots, specifically, 3 stator inner slots 54 are uniformly formed in the inner circumferential wall of the stator yoke 52 of the stator core, 3 stator outer slots 53 are uniformly formed in the outer circumferential wall of the stator yoke 52 of the stator core 5 corresponding to the stator inner slots 54, and each phase of winding 51 is wound around the stator inner slots 54 and the stator outer slots 53 which are oppositely arranged, for example, fig. 4-6.
Example 4
This example differs from example 3 in that: as shown in fig. 7-9, m =1,k =4, p =1,n =1; the 4-phase winding 51 uniformly surrounds the stator core 5, and the interval between the adjacent 2 phases is 90-degree.
The positive rotor 1 is arranged on the outer side of the stator core 5, and 10 magnet units I2 are uniformly distributed on the inner side wall of the positive rotor 1 opposite to the stator core 5; the rotor 3 is arranged at the inner side of the stator core 5, and 6 magnet units II4 are uniformly distributed on the outer side wall of the rotor 3 opposite to the stator core 5; preferably, the cross-sectional shapes of the magnet unit I2 and the magnet unit II4 are respectively set to be arc-shaped, that is, the magnet unit I2 and the magnet unit II4 are integrally arc-shaped plate-shaped.
When power is supplied to the 4-phase winding 51, the positive rotor 1 rotates in the normal direction outside the stator core 5, and the negative rotor 3 rotates in the reverse direction inside the stator core 5 in the direction opposite to the direction in which the positive rotor 1 rotates, at a rotation speed ratio of (pk + 1)/(nk-1) =5/3.
It can be seen from the above that the magnitude of the rotational speed of each rotor is inversely proportional to the number of magnet units arranged thereon.
And when m is not 1, the number of the stator slots I uniformly formed in the peripheral wall of the stator core 5 opposite to the positive rotor 1 is m × k, the number of the stator slots II uniformly formed in the peripheral wall of the stator core 5 opposite to the negative rotor 3 is m × k, and each phase of the winding 51 is wound in the stator slots I and the stator slots II which are oppositely arranged.
Example 5
The present embodiment provides a counter-rotating, dual-rotor motor in which m =4, k =3, p =0, n =1,
the 12-phase winding 51 uniformly surrounds the stator core 5, and the interval between every two adjacent 2 phases is 30-degree.
The positive rotor 1 is arranged on the outer side of the stator core 5, 8 magnet units I2, namely 4 pairs of magnetic poles, are uniformly distributed on the inner side wall of the positive rotor 1 opposite to the stator core 5, and any two adjacent magnet units I2 are spaced at an angle of 45 degrees; the rotor 3 is arranged on the inner side of the stator core 5, 16 magnet units II4, namely 8 pairs of magnetic poles, are uniformly distributed on the outer side wall of the rotor 3 opposite to the stator core 5, and any two adjacent magnet units II4 are spaced at an angle of 22.5 degrees.
When power is supplied to 4 sets of 3-phase windings 51 simultaneously, the positive rotor 1 rotates in the positive direction outside the stator core 5, and the negative rotor 3 rotates in the reverse direction opposite to the rotation direction of the positive rotor 1 inside the stator core 5 at a rotation speed ratio of (pk + 1)/(nk-1) =1/2.
Constructing a finite element simulation motor structure diagram based on a forward and reverse rotating motor of 3 same-direction ring yoke winding 514 units, setting the number of turns of the winding 51 to be 135 turns, the number N35 of a magnet unit and the pole arc coefficient to be 0.8, and thus obtaining no-load counter electromotive force as shown in the figure; the counter-potential of the positive rotor 1 rotating forward alone is shown in the figure, and the counter-potential of the positive rotor 1 and the counter-rotor 3 rotating simultaneously is shown in the figure.
It can be seen that when the positive rotor 1 and the negative rotor 3 are simultaneously rotated in opposite directions and the rotational speed relationship conforms to the relationship, no-load counter potentials are superimposed on each other.
Further, the torque diagram of the motor after applying 9.8Arms rated ac to the 3-phase same-direction yoke winding 51 is shown in the figure, and it can be seen that the positive rotor 1 and the negative rotor 3 simultaneously generate torque in opposite directions, which means that they can rotate in opposite directions simultaneously.
Further, the present embodiment also provides a forward/reverse rotation dual-rotor motor, as shown in fig. 15 to 17, wherein m =4, k =3, p =0, n =1. The positive rotor 1 is arranged on the inner side of the stator core 5, and 8 magnet units I2, namely 4 pairs of magnetic poles, are uniformly distributed on the outer side wall of the positive rotor 1 opposite to the stator core 5; the rotor 3 is arranged outside the stator core 5, and 16 magnet units II4, namely 8 pairs of magnetic poles, are uniformly distributed on the inner side wall of the rotor 3 opposite to the stator core 5.
When power is supplied to 4 sets of 3-phase windings 51 simultaneously, the positive rotor 1 rotates forward inside the stator core 5, and the negative rotor 3 rotates backward outside the stator core 5 in the direction opposite to the direction of rotation of the positive rotor 1, at a rotation speed ratio of (pk + 1)/(nk-1) =1/2.
As can be seen from the above description, the present motor is also a forward/reverse rotation motor with 3-phase same-direction yoke winding 514 units, and the forward rotor 1 operates with the fundamental wave of forward rotation in the armature magnetic field of the winding 51, i.e. p =0, k =3, and v =1; the counter-rotor 3 operates with the 2 nd harmonic of the counter-rotation in the armature field of the winding 51, i.e. n =1,k =3,v =2.
Constructing a finite element simulation motor structure diagram based on the 3 same-direction ring yoke winding 514 unit forward and reverse rotation motor, setting the number of turns of a winding 51 to be 135 turns, the brand number of a magnet unit to be N35, and the pole arc coefficient to be 0.8, thereby obtaining no-load counter electromotive force as shown in the figure; the counter-potential of the positive rotor 1 rotating forward alone is shown in the figure, and the counter-potential of the positive rotor 1 and the counter-rotor 3 rotating simultaneously is shown in the figure.
It can be seen that when the positive rotor 1 and the negative rotor 3 are simultaneously rotated in opposite directions and the rotational speed relationship conforms to the relationship, no-load counter potentials are superimposed on each other.
Further, the torque diagram of the motor after applying 9.8Arms rated ac to the 3-phase same-direction yoke winding 51 is shown in the figure, and it can be seen that the positive rotor 1 and the negative rotor 3 simultaneously generate torque in opposite directions, which means that they can rotate in opposite directions simultaneously.
It can be seen that, for the radial motor in which the positive rotor 1 and the negative rotor 3 are respectively disposed at the inner side and the outer side of the stator core 5, the number of magnets in the rotor at the inner side of the stator core 5 is small, so that the counter electromotive force amplitudes generated when the two rotors at the inner side and the outer side of the stator rotate respectively are closer.
Example 6
This example differs from example 2 in that: as shown in the figures 18-19 of the drawings,
the stator core 5 is a disc-shaped core, the positive rotor 1 and the negative rotor 3 are both arranged coaxially with the stator core 5, the positive rotor 1 and the negative rotor 3 are respectively arranged at two axial sides of the stator core 5, and air gaps are respectively formed between the positive rotor 1 and the negative rotor 3 and the axial side walls of the stator core 5;
the equivalent magnetic pole directions of the magnet unit I2 of the positive rotor 1 and the magnet unit II4 of the negative rotor 3 are parallel to the axial direction of the stator core 5;
specifically, 2 magnet units I2 are uniformly distributed on the axial side wall of the positive rotor 1 opposite to the stator core 5; 4 magnet units II4 are uniformly distributed on the axial side wall of the rotor 3 opposite to the stator core 5; preferably, the cross-sectional shapes of the magnet unit I2 and the magnet unit II4 are respectively set to be fan-shaped, that is, the magnet unit I2 and the magnet unit II4 are fan-shaped plate-shaped as a whole.
Specifically, the angular distance between the magnet unit I2 and the magnet unit II4 is set according to the number of magnet units, for example, for a 4-pole magnet unit, the adjacent magnet units are spaced by 90 degrees; and 2 magnetic units, adjacent magnetic units are spaced by 180 degrees, so in this embodiment, any two adjacent magnetic units i2 are spaced by 180 degrees, and any two adjacent magnetic units II4 are spaced by 90 degrees.
Further, the equivalent magnetic pole directions of the magnet units I2 and II4 are alternately arranged, that is, N, S poles are alternately arranged. Similarly, the directions of the arrows in the magnet unit I2 and the magnet unit II4 are equivalent magnetic pole directions, and it can be seen that the equivalent magnetic pole directions of the magnet unit I2 and the magnet unit II4 are arranged substantially parallel to the axial direction of the stator core 5.
The coil is unchanged, the only difference being: the axial both-side ends of the coil are opposed to the magnet unit I2 and the magnet unit II4, respectively.
When power is supplied to the 3-phase winding 51, the positive rotor 1 rotates in the positive direction on one axial end side of the stator core 5, and the negative rotor 3 rotates in the reverse direction opposite to the direction in which the positive rotor 1 rotates on the other axial end side of the stator core 5, and the rotation speed ratio is (pk + 1)/(nk-1) =1/2.
Example 7
The embodiment provides a forward-reverse-rotation multi-stator multi-rotor motor which comprises N coaxially-arranged single-stator dual-rotor motor structures, wherein any two adjacent single-stator dual-rotor motor structures are nested, and N is an integer of 2 or more than 2;
the single-stator double-rotor motor structure is the positive and negative rotation double-rotor motor in any one of embodiments 1 to 5; the number of the k-phase windings 51 annularly arranged on the stator iron core 5 of any two single-stator double-rotor motor structures is independent and does not interfere with each other.
It can be seen that this embodiment is a structure in which a plurality of forward and reverse dual-rotor motors described in any of embodiments 1 to 5 are coaxially nested, and when the forward and reverse dual-rotor motors are coaxially nested, each single-stator dual-rotor motor structure may have an independent forward rotor 1 and an independent reverse rotor 3, or may share the forward rotor 1 or the reverse rotor 3 with an adjacent single-stator dual-rotor motor structure.
Specifically, when two adjacent single-stator dual-rotor motor structures which are arranged in a nested manner share one positive rotor 1,2 (p) is uniformly distributed on one side of the positive rotor, which is opposite to the first single-stator dual-rotor motor structure 1 k 1 +1)*m 1 2 (p) is uniformly distributed on one side of the positive rotor, which is opposite to the second single-stator double-rotor motor structure, of the magnet unit I2 2 k 2 +1)*m 1 A magnet unit I2, and w 1 /(m 1 (p 1 k 1 +1))＝w 2 /(m 2 (p 2 k 2 +1))；
Wherein w 1 And w 2 The energizing frequency k of the stator winding of two adjacent single-stator double-rotor motor structures 1 Is the number of stator winding phases, m, of the first single-stator dual-rotor motor structure 1 Number of stator winding sets, p, of the first single-stator dual-rotor motor structure 1 The number of pole pairs of a magnet unit I2 on the shared positive rotor 1 corresponding to one side of the first single-stator double-rotor motor structure is set; k is a radical of 2 Is the stator winding phase number, m, of the second single-stator dual-rotor motor structure 2 Number of stator winding sets, p, of the second single-stator dual-rotor motor structure 2 The number of pole pairs of a magnet unit I2 on one side of the shared positive rotor 1 corresponding to the second single-stator double-rotor motor structure is shown;
k 1 、k 2 each is an integer of 2 or more, m 1 、m 2 Are each an integer of 1 or more, p 1 、p 2 Are each an integer of not less than 0.
When two adjacent single-stator double-rotor motor structures which are arranged in a nested manner share one inverted rotor 3, 2 (n) is uniformly distributed on one side of the inverted rotor 3, which is opposite to the first single-stator double-rotor motor structure 1 k 1 -1)*m 1 2 (n) are uniformly distributed on one side of the magnet unit II4, which is opposite to the structure of the second single-stator double-rotor motor, of the counter rotor 3 2 k 2 -1)*m 1 A magnet unit II4, and w 1 /(m 1 (n 1 k 1 -1))＝w 2 /(m 2 (n 2 k 2 -1))；
Wherein, w 1 And w 2 The energizing frequency k of the stator winding of two adjacent single-stator double-rotor motor structures 1 Is the number of stator winding phases, m, of the first single-stator dual-rotor motor structure 1 Is the number of stator winding sets, n, of the first single-stator dual-rotor motor structure 1 Is the pole pair number of the magnet unit II4 on the common counter rotor 3 corresponding to one side of the first single-stator double-rotor motor structure; k is a radical of 2 Is the stator winding phase number, m, of the second single-stator dual-rotor motor structure 2 Number of stator winding sets, n, of the second single-stator dual-rotor motor structure 2 Is the pole pair number of the magnet unit II4 on the common counter rotor 3 corresponding to one side of the second single-stator double-rotor motor structure;
k 1 、k 2 are each an integer of 2 or more, m 1 、m 2 Are integers of 1 and 1 or more, n 1 、n 2 Are all positive integers.
It can be understood that when two adjacent single-stator double-rotor motor structures which are arranged in a nested manner share the positive rotor 1 or the negative rotor 3, the number of rotors can be reduced, the structure is simplified, and the volume is reduced.
It should be noted that whether the common positive rotor 1 or the common negative rotor 3 is used, it is necessary to ensure that the rotation speed of the common rotor is the same from either side, and therefore a corresponding number of magnet units I2 or II4 must be set to accommodate the current k 1 、k 2 、m 1 、m 2 And w 1 And w 2 。
Example 8
The embodiment provides a many stators of just reversing many rotors motor, includes:
n coaxially arranged single-stator double-rotor motor structures, wherein any two adjacent single-stator double-rotor motor structures are arranged in parallel along the axial direction, and N is an integer of 2 or more than 2;
the single-stator dual-rotor motor structure is the positive and negative rotation dual-rotor motor in embodiment 6; the number of the k-phase windings 51 annularly arranged on the stator iron core 5 of any two single-stator double-rotor motor structures is independent and does not interfere with each other.
Similarly, any two adjacent single-stator dual-rotor motor structures coaxially arranged in parallel in the embodiment may have independent positive rotor 1 and independent reverse rotor 3, or may share the positive rotor 1 or the reverse rotor 3.
Specifically, when two adjacent single-stator dual-rotor motor structures share one positive rotor 1,2 (p) is uniformly distributed on one side, opposite to the first single-stator dual-rotor motor structure, of the positive rotor 1 1 k 1 +1)*m 1 2 (p) is uniformly distributed on one side of the positive rotor 1, which is opposite to the second single-stator double-rotor motor structure, of the magnet unit I2 2 k 2 +1)*m 1 A magnet unit I2, and w 1 /(m 1 (p 1 k 1 +1))＝w 2 /(m 2 (p 2 k 2 +1))；
Wherein, w 1 And w 2 The energizing frequency k of the stator winding of two adjacent single-stator double-rotor motor structures 1 Is the number of stator winding phases, m, of the first single-stator dual-rotor motor structure 1 Number of stator winding sets, p, of the first single-stator dual-rotor motor structure 1 The number of pole pairs of a magnet unit I2 on one side of a shared positive rotor corresponding to a first single-stator double-rotor motor structure is shown; k is a radical of 2 Is the stator winding phase number, m, of the second single-stator dual-rotor motor structure 2 Number of stator winding sets, p, for a second single-stator dual-rotor motor configuration 2 The number of pole pairs of a magnet unit I2 on one side of the shared positive rotor 1 corresponding to the second single-stator double-rotor motor structure is shown;
k 1 、k 2 are each an integer of 2 or more, m 1 、m 2 Are each an integer of 1 or more, p 1 、p 2 Are each an integer of not less than 0.
When two adjacent single-stator double-rotor motor structures share one inverted rotor 3, 2 (n) is uniformly distributed on one side of the inverted rotor 3 opposite to the first single-stator double-rotor motor structure 1 k 1 -1)*m 1 2 (n) are uniformly distributed on one side of the magnet unit II4, which is opposite to the structure of the second single-stator double-rotor motor, of the counter rotor 3 2 k 2 -1)*m 1 A magnet unit II4, and w 1 /(m 1 (n 1 k 1 -1))＝w 2 /(m 2 (n 2 k 2 -1))；
Wherein, w 1 And w 2 The energizing frequency k of the stator winding of two adjacent single-stator double-rotor motor structures 1 Is the number of stator winding phases, m, of the first single-stator dual-rotor motor structure 1 Is the number of stator winding sets, n, of the first single-stator dual-rotor motor structure 1 Is the pole pair number of the magnet unit II4 on the common counter rotor 3 corresponding to one side of the first single-stator double-rotor motor structure; k is a radical of 2 Is the number of stator winding phases, m, of the second single-stator dual-rotor motor structure 2 Number of stator winding sets, n, of the second single-stator dual-rotor motor structure 2 Is the pole pair number of the magnet unit II4 on the common counter rotor 3 corresponding to one side of the second single-stator double-rotor motor structure;
k 1 、k 2 are each an integer of 2 or more, m 1 、m 2 Are integers of 1 and 1 or more, n 1 、n 2 Are all positive integers.
In a similar way, the arrangement can reduce the number of the rotors, simplify the structure and reduce the volume.
It is to be noted that whether the positive rotor 4 or the counter-rotor 3 is shared, it is necessary to ensure that the rotational speed of the shared rotor is the same from either side, and therefore a corresponding number of magnet units I2 or II4 must be set to accommodate the current k 1 、k 2 、m 1 、m 2 And w 1 And w 2 。
Example 9
The present embodiment provides a forward/reverse rotation multi-stator multi-rotor motor, as shown in fig. 20 to 21, including:
1 stator core 5;
m sets of k-phase windings 51, wherein each set of k-phase windings 51 uniformly surrounds the stator iron core, k is an integer of 2 or more than 2, and m is an integer of 1 or more than 1;
the rotor I61 is embedded and arranged on the inner side of the stator core 5, and 2 (pk + 1) × m magnet units I2,p are integers not less than 0 and are uniformly distributed on one side of the rotor I61 opposite to the stator core 5;
the rotor II 62 is embedded and sleeved outside the stator core 5, and 2 (nk-1) × m magnet units II4,n are uniformly distributed on one side of the rotor II 62 opposite to the stator core 5 and are positive integers;
the rotor III 63 is arranged on one axial side of the stator core 5 in parallel, and 2 (pk + 1) × m magnet units I2,p are integers not less than 0 and are uniformly distributed on one side, opposite to the stator core 5, of the rotor III 63;
the rotor IV 64 is arranged on the other axial side of the stator core in parallel, and 2 (nk-1) × m magnet units II4,n which are positive integers are uniformly distributed on one side, opposite to the stator core, of the rotor IV 64;
air gaps are formed between the rotor I61 and the rotor II 62 and the inner side wall and the outer side wall of the stator core 5 respectively, and air gaps are formed between the rotor III 63 and the rotor IV 64 and the axial side wall of the stator core 5 respectively.
Preferably, the cross-sectional shapes of the magnet unit I2 on the rotor I61 and the magnet unit II4 on the rotor II 62 are respectively set to be arc-shaped, that is, the magnet unit I2 and the magnet unit II4 are integrally in the shape of arc-shaped plate or tile. The cross-sectional shapes of the magnet unit I2 on the rotor III 63 and the magnet unit II4 on the rotor IV 64 are respectively set to be fan-shaped, that is, the magnet unit I2 and the magnet unit II4 are fan-shaped plate-shaped as a whole.
Further, the equivalent magnetic pole directions of the magnet units I2 and II4 are alternately arranged, that is, N, S poles are alternately arranged. The arrow directions in the magnet unit I2 and the magnet unit II4 are equivalent magnetic pole directions, wherein the equivalent magnetic pole directions of the magnet unit I2 on the rotor I61 and the magnet unit II4 on the rotor II 62 are radial directions along the stator core 5. The equivalent pole directions of the magnet unit I2 on the rotor III 63 and the magnet unit II4 on the rotor IV 64 are parallel to the axial direction of the stator core 5.
When power is supplied to the k-phase winding 54, the rotor I61 and the rotor II 62 rotate in opposite directions on the inner side and the outer side of the stator core 5, respectively, and the rotation speed ratio is (pk + 1)/(nk-1); the rotor III 63 and the rotor IV 64 rotate in opposite directions on both sides of the stator core 5 in the axial direction, respectively, and the rotation speed ratio is (pk + 1)/(nk-1).
It can be seen that the present embodiment is a motor structure in which a radial motor and an axial motor are integrated.
Example 10
The embodiment provides a many stators of just reversing many rotors motor, includes:
1 stator core 5;
m sets of k-phase windings, wherein each set of k-phase windings uniformly surrounds the stator iron core, k is an integer of 2 or more than 2, and m is an integer of 1 or more than 1;
the rotor I61 is embedded and sleeved outside the stator core 5, and 2 (pk + 1) × m magnet units I2,p are uniformly distributed on one side, opposite to the stator core 5, of the rotor I61 and are integers not less than 0;
the rotor II 62 is embedded and sleeved on the inner side of the stator core 5, and 2 (nk-1) × m magnet units II4,n which are positive integers are uniformly distributed on one side of the rotor II 62 opposite to the stator core 5;
the rotor III 63 is arranged on one axial side of the stator core 5 in parallel, and 2 (pk + 1) × m magnet units I2,p are integers not less than 0 and are uniformly distributed on one side, opposite to the stator core 5, of the rotor III 63;
the rotor IV 64 is arranged on the other axial side of the stator core 5 in parallel, and 2 (nk-1) × m magnet units II4,n are uniformly distributed on one side, opposite to the stator core 5, of the rotor IV 64 and are positive integers;
when power is supplied to the k-phase winding, the rotor II 62 and the rotor I61 rotate in opposite directions on the inner side and the outer side of the stator core 5 at the same time, and the rotation speed ratio is (pk + 1)/(nk-1); the rotor III 63 and the rotor IV 64 rotate in opposite directions on both sides of the stator core 5 in the axial direction, respectively, and the rotation speed ratio is (pk + 1)/(nk-1).
Air gaps are formed between the rotor I61 and the rotor II 62 and the inner and outer side walls of the stator core 5 respectively, and air gaps are formed between the rotor III 63 and the rotor IV 64 and the axial side walls of the stator core 5 respectively.
Preferably, the cross-sectional shapes of the magnet unit I2 on the rotor I61 and the magnet unit II4 on the rotor II 62 are respectively set to be arc-shaped, that is, the magnet unit I2 and the magnet unit II4 are integrally in the shape of arc-shaped plate or tile. The cross-sectional shapes of the magnet unit I2 on the rotor III 63 and the magnet unit II4 on the rotor IV 64 are respectively set to be fan-shaped, that is, the magnet unit I2 and the magnet unit II4 are fan-shaped plate-shaped as a whole.
Further, the equivalent magnetic pole directions of the magnet units I2 and II4 are alternately arranged, that is, N, S poles are alternately arranged. The arrow directions in the magnet unit I2 and the magnet unit II4 are equivalent magnetic pole directions, wherein the equivalent magnetic pole directions of the magnet unit I2 on the rotor I61 and the magnet unit II4 on the rotor II 62 are radial directions along the stator core 5. The equivalent pole directions of the magnet unit I2 on the rotor III 63 and the magnet unit II4 on the rotor IV 64 are parallel to the axial direction of the stator core 5.
It can be seen that the present embodiment is a motor structure in which a radial motor and an axial motor are integrated, and the present embodiment is different from embodiment 9 in that the radial motor has a forward rotor on the outer side and a reverse rotor on the inner side.
It should be noted that, in addition to being capable of being applied to the multi-stator-multi-rotor simultaneous forward and reverse rotation structure described in embodiments 7 to 10, the present invention can also be applied to a polyhedral linear motor to realize that the rotors on different surfaces move in opposite directions at the same time, and can also realize motors with radial magnetic flux, axial magnetic flux, transverse magnetic flux, and the like.
Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present invention and not to limit the same; although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (15)
1. A positive and negative rotation double-rotor motor is characterized by comprising:
1 stator core;
m sets of k-phase windings, wherein each set of k-phase windings uniformly surrounds the stator iron core, k is an integer of 2 or more than 2, and m is an integer of 1 or more than 1;
the positive rotor is arranged on one side of the stator core, 2 (pk + 1) × m magnet units I are uniformly distributed on one side of the positive rotor opposite to the stator core, and p is an integer not less than 0;
the stator comprises a stator core, a counter rotor and a plurality of magnet units, wherein the counter rotor is arranged on the other side of the stator core, 2 (nk-1) × m magnet units II are uniformly distributed on one side of the counter rotor opposite to the stator core, and n is a positive integer;
when power is supplied to the k-phase winding, the positive rotor and the negative rotor respectively rotate in opposite directions on both sides of the stator core at the same time, and the rotation speed ratio is (pk + 1)/(nk-1).
2. The counter-rotating dual-rotor motor according to claim 1, characterized in that: the stator core is a circular ring-shaped core, the positive rotor and the negative rotor are coaxially arranged with the stator core, and the positive rotor and the negative rotor are respectively arranged at the inner side and the outer side of the stator core and respectively form an air gap with the inner peripheral wall and the outer peripheral wall of the stator core;
the equivalent magnetic pole directions of the magnet unit I of the positive rotor and the magnet unit II of the negative rotor are parallel to the radius direction of the stator core.
3. The counter-rotating dual-rotor motor according to claim 1, wherein: the stator core is a disc-shaped core, the positive rotor and the negative rotor are coaxially arranged with the stator core, and the positive rotor and the negative rotor are respectively arranged at two axial sides of the stator core and respectively form air gaps with the axial side wall of the stator core;
the equivalent magnetic pole directions of the magnet unit I of the positive rotor and the magnet unit II of the negative rotor are parallel to the axial direction of the stator core.
4. The counter-rotating double-rotor motor according to claim 2 or 3, characterized in that: the peripheral wall of the stator core opposite to the positive rotor is uniformly provided with m & ltx & gt k & gt stator slots I, the peripheral wall of the stator core opposite to the negative rotor is uniformly provided with m & ltx & gt k & gt stator slots II corresponding to the stator slots I, and each phase of winding is wound in the stator slots I and the stator slots II which are oppositely arranged.
5. The counter-rotating double-rotor motor according to any one of claims 1 to 3, characterized in that: the m sets of k-phase windings are homodromous windings.
6. The utility model provides a many stators of just reversing many rotors motor which characterized in that includes:
n coaxially arranged single-stator double-rotor motor structures, wherein any two adjacent single-stator double-rotor motor structures are nested, and N is an integer of 2 or more than 2;
wherein the single-stator dual-rotor motor structure is the positive and negative rotation dual-rotor motor of claim 2; the number of the k-phase windings annularly arranged on the stator iron core of any two single-stator double-rotor motor structures is independent and does not interfere with each other.
7. The counter-rotating multiple stator multiple rotor electric machine according to claim 6, comprising: each single stator, dual rotor motor structure has independent positive and negative rotors.
8. The counter-rotating multiple stator multiple rotor electric machine according to claim 6, comprising: two adjacent single-stator dual-rotor motor structures which are arranged in a nested manner share one positive rotor, and 2 (p) is uniformly distributed on one side of the positive rotor, which is opposite to the first single-stator dual-rotor motor structure 1 k 1 +1)*m 1 2 (p) is uniformly distributed on one side of the positive rotor, which is opposite to the second single-stator double-rotor motor structure 2 k 2 +1)*m 1 A magnet unit I, and w 1 /(m 1 (p 1 k 1 +1))＝w 2 /(m 2 (p 2 k 2 +1))；
Wherein, w 1 And w 2 The energizing frequency k of the stator winding of two adjacent single-stator double-rotor motor structures 1 Is the number of stator winding phases, m, of the first single-stator dual-rotor motor structure 1 Number of stator winding sets, p, of the first single-stator dual-rotor motor structure 1 The number of pole pairs of a magnet unit I on one side of a shared positive rotor corresponding to a first single-stator double-rotor motor structure is I; k is a radical of 2 Is the stator winding phase number, m, of the second single-stator dual-rotor motor structure 2 Number of stator winding sets, p, for a second single-stator dual-rotor motor configuration 2 The number of pole pairs of a magnet unit I on one side of a shared positive rotor corresponding to a second single-stator double-rotor motor structure is I;
k 1 、k 2 each is an integer of 2 or more, m 1 、m 2 Are each an integer of 1 or more, p 1 、p 2 Are each an integer of not less than 0.
9. According toThe counter-rotating multiple stator multiple rotor electric machine of claim 6, comprising: two adjacent single-stator dual-rotor motor structures which are arranged in a nested manner share one inverted rotor, and 2 (n) is uniformly distributed on one side of the inverted rotor opposite to the first single-stator dual-rotor motor structure 1 k 1 -1)*m 1 2 (n) are uniformly distributed on one side of each magnet unit II, which is opposite to the structure of the second single-stator double-rotor motor 2 k 2 -1)*m 1 A magnet unit II, and w 1 /(m 1 (n 1 k 1 -1))＝w 2 /(m 2 (n 2 k 2 -1))；
Wherein, w 1 And w 2 The energizing frequency k of the stator winding of two adjacent single-stator double-rotor motor structures 1 Is the number of stator winding phases, m, of the first single-stator dual-rotor motor structure 1 Is the number of stator winding sets, n, of the first single-stator dual-rotor motor structure 1 The number of pole pairs of a magnet unit II on one side of the shared counter rotor corresponding to the first single-stator double-rotor motor structure is as follows; k is a radical of 2 Is the stator winding phase number, m, of the second single-stator dual-rotor motor structure 2 Number of stator winding sets, n, of the second single-stator dual-rotor motor structure 2 The number of pole pairs of a magnet unit II on one side of the shared counter rotor corresponding to the structure of the second single-stator double-rotor motor is as follows;
k 1 、k 2 each is an integer of 2 or more, m 1 、m 2 Are integers of 1 and 1 or more, n 1 、n 2 Are all positive integers.
10. The utility model provides a many stators of just reversing many rotors motor which characterized in that includes:
the motor comprises N coaxially arranged single-stator and double-rotor motor structures, wherein any two adjacent single-stator and double-rotor motor structures are arranged in parallel along the axial direction, and N is an integer of 2 or more than 2;
wherein the single-stator dual-rotor motor structure is the positive and negative rotation dual-rotor motor of claim 3; the number of the k-phase windings annularly arranged on the stator iron core of any two single-stator double-rotor motor structures is independent and does not interfere with each other.
11. The counter-rotating multiple stator multiple rotor electric machine according to claim 10, comprising: each single stator, dual rotor motor structure has independent positive and negative rotors.
12. The counter-rotating multi-stator multi-rotor motor according to claim 10, comprising: two adjacent single-stator dual-rotor motor structures arranged in parallel in the axial direction share one positive rotor, and 2 (p) is uniformly distributed on one side, opposite to the first single-stator dual-rotor motor structure, of the positive rotor 1 k 1 +1)*m 1 2 (p) is uniformly distributed on one side of the magnet unit I, which is opposite to the positive rotor and the second single-stator double-rotor motor structure 2 k 2 +1)*m 1 A magnet unit I, and w 1 /(m 1 (p 1 k 1 +1))＝w 2 /(m 2 (p 2 k 2 +1))；
Wherein, w 1 And w 2 Stator winding energization frequency k of two adjacent single-stator dual-rotor motor structures respectively 1 Is the number of stator winding phases, m, of the first single-stator dual-rotor motor structure 1 Number of stator winding sets, p, of the first single-stator dual-rotor motor structure 1 The number of permanent magnet pole pairs on one side of the shared positive rotor corresponding to the first single-stator dual-rotor motor structure is counted; k is a radical of 2 Is the number of stator winding phases, m, of the second single-stator dual-rotor motor structure 2 Number of stator winding sets, p, for a second single-stator dual-rotor motor configuration 2 The number of permanent magnet pole pairs on one side of the shared positive rotor corresponding to the second single-stator dual-rotor motor structure;
k 1 、k 2 are each an integer of 2 or more, m 1 、m 2 Are each an integer of 1 or more, p 1 、p 2 Are each an integer of not less than 0.
13. The counter-rotating multiple stator multiple rotor electric machine according to claim 10 whereinThe method comprises the following steps: two adjacent single-stator double-rotor motor structures arranged in parallel in the axial direction share one counter rotor, and 2 (n) is uniformly distributed on one side, opposite to the first single-stator double-rotor motor structure, of the counter rotor 1 k 1 -1)*m 1 2 (n) are uniformly distributed on one side of each magnet unit I, which is opposite to the structure of the second single-stator double-rotor motor 2 k 2 -1)*m 1 A magnet unit I, and w 1 /(m 1 (n 1 k 1 -1))＝w 2 /(m 2 (n 2 k 2 -1))；
Wherein, w 1 And w 2 The stator winding of two adjacent single-stator dual-rotor motor structures has the energizing frequency k 1 Is the number of stator winding phases, m, of the first single-stator dual-rotor motor structure 1 Number of stator winding sets, n, of the first single-stator dual-rotor motor structure 1 The number of permanent magnet pole pairs on one side of the shared counter rotor corresponding to the first single-stator dual-rotor motor structure is; k is a radical of 2 Is the stator winding phase number, m, of the second single-stator dual-rotor motor structure 2 Number of stator winding sets, n, of the second single-stator dual-rotor motor structure 2 The number of permanent magnet pole pairs on one side of the shared counter rotor corresponding to the second single-stator dual-rotor motor structure;
k 1 、k 2 are each an integer of 2 or more, m 1 、m 2 Are integers of 1 and 1 or more, n 1 、n 2 Are all positive integers.
14. The utility model provides a many stators of just reversing many rotors motor which characterized in that includes:
1 stator core;
m sets of k-phase windings, wherein each set of k-phase windings uniformly surrounds the stator iron core, k is an integer of 3 or more than 3, and m is an integer of 1 or more than 1;
the rotor I is embedded and arranged on the inner side of the stator core, 2 (pk + 1) × m magnet units I are uniformly distributed on one side of the rotor I opposite to the stator core, and p is an integer not less than 0;
the rotor II is embedded and sleeved outside the stator core, 2 (nk-1) × m magnet units II are uniformly distributed on one side of the rotor II opposite to the stator core, and n is a positive integer;
the rotor III is arranged on one axial side of the stator core in parallel, 2 (pk + 1) × m magnet units I are uniformly distributed on one side of the rotor III opposite to the stator core, and p is an integer not less than 0;
the rotor I V is arranged on the other axial side of the stator core in parallel, 2 (nk-1) × m magnet units II are uniformly distributed on one side, opposite to the stator core, of the rotor I V, and n is a positive integer;
when power is supplied to the k-phase winding, the rotor I and the rotor II rotate towards mutually opposite directions at the inner side and the outer side of the stator core simultaneously respectively, and the rotating speed ratio is (pk + 1)/(nk-1); the rotor III and the rotor IV respectively rotate towards opposite directions at two axial sides of the stator core at the same time, and the rotating speed ratio is (pk + 1)/(nk-1).
15. The utility model provides a many stators of just reversing many rotors motor which characterized in that includes:
1 stator core;
m sets of k-phase windings, wherein each set of k-phase windings uniformly surrounds the stator iron core, k is an integer of 3 or more than 3, and m is an integer of 1 or more than 1;
the rotor I is embedded and sleeved outside the stator core, 2 (pk + 1) × m magnet units I are uniformly distributed on one side of the rotor I opposite to the stator core, and p is an integer not less than 0;
the rotor II is embedded and sleeved on the inner side of the stator core, 2 (nk-1) × m magnet units II are uniformly distributed on one side of the rotor II opposite to the stator core, and n is a positive integer;
the rotor III is arranged on one axial side of the stator core in parallel, 2 (pk + 1) × m magnet units I are uniformly distributed on one side of the rotor III, which is opposite to the stator core, and p is an integer not less than 0;
the rotor IV is arranged on the other axial side of the stator core in parallel, 2 (nk-1) × m magnet units II are uniformly distributed on one side of the rotor IV opposite to the stator core, and n is a positive integer;
when power is supplied to the k-phase winding, the rotor II and the rotor I respectively rotate towards mutually opposite directions at the inner side and the outer side of the stator core at the same time, and the rotating speed ratio is (pk + 1)/(nk-1); the rotor III and the rotor IV respectively rotate towards opposite directions at two sides of the axial direction of the stator core at the same time, and the rotating speed ratio is (pk + 1)/(nk-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211395546.2A CN115720038A (en) | 2022-11-04 | 2022-11-04 | Forward and reverse rotation double-rotor motor and multi-stator multi-rotor motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211395546.2A CN115720038A (en) | 2022-11-04 | 2022-11-04 | Forward and reverse rotation double-rotor motor and multi-stator multi-rotor motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115720038A true CN115720038A (en) | 2023-02-28 |
Family
ID=85255058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211395546.2A Pending CN115720038A (en) | 2022-11-04 | 2022-11-04 | Forward and reverse rotation double-rotor motor and multi-stator multi-rotor motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115720038A (en) |
-
2022
- 2022-11-04 CN CN202211395546.2A patent/CN115720038A/en active Pending
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