CN101938201A - Axial-radial magnetic field modulation type brushless composite structural motor - Google Patents
Axial-radial magnetic field modulation type brushless composite structural motor Download PDFInfo
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Abstract
The invention discloses an axial-radial magnetic field modulation type brushless composite structural motor, which belongs to the field of motors and solves the problems of heavy system volume, complex structure, high cost, limited performance and incapability of effectively outputting power because an engine and other system components in the conventional series, parallel and parallel-series driving devices cannot be simply and efficiently matched. A shell is divided into two parts which are provided with an axial double-rotor motor and a radial torque adjusting motor respectively, a permanent-magnetic rotor of the axial double-rotor motor is driven by a prime mover to form a 2n-pole magnetic field, a stator of the axial double-rotor motor forms a 2p-pole magnetic field, an output shaft of a modulation ring rotor consisting of q magnetic conducting blocks and insulating blocks outputs the required rotating speed, and p is equal to an absolute value of hn and kq, wherein the output rotating speed does not depend on the input rotating speed, so infinitely variable speed is realized; and the radial torque adjusting motor inputs a driving torque or a braking torque according to the actual load requirement so as to meet the actual torque requirement of the load and balance the input and output energy of the output shaft of the modulation ring rotor.
Description
Technical field
The present invention relates to axial-radial magnetic field modulation type brushless composite structure motor, belong to machine field.
Background technology
The fuel consume of traditional combustion engine automobile and pollution emission are the hot issues of worldwide attention.Use electric automobile can realize low energy consumption, low emission, but because as the problem of aspects such as its energy density of battery of one of critical component of electric automobile, life-span, price, make the cost performance of electric automobile to contend with traditional internal-combustion engines vehicle, in this case, the mixed power electric car development of merging internal-combustion engines vehicle and electric automobile advantage is rapid, becomes the new automobile hot of research and development.
The characteristics of existing tandem drive unit are: can make engine not be subjected to the influence of automobile running working condition, all the time in its best service area stable operation, and optionally use lower-powered engine, but generator that required power is enough big and motor, the output of engine need all be converted into electric energy and become the mechanical energy that drives automobile again, because the efficient of energy converting between mechanical and battery charging and discharging is lower, makes that the fuel oil energy utilization ratio is lower; Parallel drive unit capacity usage ratio is higher relatively, but engine operating condition will be subjected to the influence of automobile running working condition, therefore be unsuitable for changing frequent driving cycle,, need comparatively complicated speed change gear and power set composite and transmission mechanism than series-mode frame; The series parallel type drive unit has merged tandem and parallel advantage, because the energy Flow of whole drive system is more flexible, so parts such as engine, generator, motor can further be optimized, thereby make whole system efficient higher.But still need comparatively complicated speed change gear and power set composite and transmission mechanism.
In above-mentioned drive unit, there is the problem that engine and system's miscellaneous part can not cooperation, make whole system have volume heaviness, complex structure, power consumption is big, the exhaust emissions amount is big problem, and can not effectively output power.
Summary of the invention
The present invention seeks to that engine and system's miscellaneous part can not simply efficiently cooperate in existing tandem, the parallel and series parallel type drive unit in order to solve, whole system exists volume heaviness, complex structure, cost is higher, performance is limited thereby make, and the problem that can not output power effectively, provide a kind of axially-the radial magnetic field modulation type brushless composite structure motor.
The present invention axially-first kind of structure of radial magnetic field modulation type brushless composite structure motor:
Axially-housing of radial magnetic field modulation type brushless composite structure motor is divided into left and right sides two parts by separator, axially double-rotor machine and radially the torque adjustment motor be separately positioned in left and right sides two parts of housing, described axial double-rotor machine comprises first stator, the modulation rotor, first p-m rotor, p-m rotor output shaft and modulation rotor output shaft, described radially torque adjustment motor comprises second stator and second p-m rotor, the conduct simultaneously of modulation rotor output shaft is the armature spindle of torque adjustment motor radially
Second stator of described radially torque adjustment motor is fixed on the madial wall of housing right half, and second p-m rotor is fixed on the modulation rotor output shaft, between second stator and second p-m rotor air gap L3 is arranged radially;
Each outer toroid end face of two first stators of described axial double-rotor machine is separately fixed on the left and right sides end face inwall of housing left half, first p-m rotor is fixed on the p-m rotor output shaft, the p-m rotor output shaft is rotationally connected by a side end face of clutch shaft bearing and housing, and be rotationally connected with the modulation rotor by second bearing and the 4th bearing, the modulation rotor is between two first stators, the outside of first p-m rotor, one end of modulation rotor output shaft is fixed on the modulation rotor, and the separator of modulation rotor output shaft by the 3rd bearing and housing is rotationally connected, another end face by the 5th bearing and housing is rotationally connected; Between the annulus end face of the modulation rotor and first stator air gap L1 is arranged; Between the modulation rotor and first p-m rotor air gap L2 is arranged,
First stator by first stator core and m mutually first stator winding constitute, when first stator winding is connected with the symmetrical alternating current of m, form the rotating magnetic field of 2p number of poles, m, p are positive integer;
First p-m rotor is made of first p-m rotor iron core and a plurality of first permanent magnet units, first p-m rotor iron core is a disc, be symmetrical arranged first permanent magnet unit on the two side discs end faces of the first p-m rotor iron core, the 2n that is provided with on each disk end face first permanent magnet unit is that the center is the radiation wire and evenly arranges with the p-m rotor output shaft, first permanent magnet unit is parallel magnetization vertically, the magnetizing direction of adjacent two first permanent magnet units of same disk end face is opposite, two first permanent magnet unit magnetizing directions of position symmetry are identical on the two side discs end faces, during the rotation of first p-m rotor, form the p-m rotor magnetic fidle of end of 2n number of poles, n is a positive integer;
The modulation rotor is made of rotor field spider, 2q piece magnetic inductive block and 2q piece collets, rotor field spider is by two nose circle faces and the closed frame that annulus constitutes, be crisscross arranged on each nose circle face q piece magnetic inductive block and q piece collets, and be that the center is the radiation wire and evenly arranges with the p-m rotor output shaft;
And satisfy the p=|hn+kq| relational expression and set up, wherein, h is a positive odd number, and k is an integer.
The present invention axially-second kind of structure of radial magnetic field modulation type brushless composite structure motor:
Axially-housing of radial magnetic field modulation type brushless composite structure motor is divided into left and right sides two parts by separator, radially torque adjustment motor and axial double-rotor machine are separately positioned in left and right sides two parts of housing, described axial double-rotor machine comprises first stator, the modulation rotor, first p-m rotor, p-m rotor output shaft and modulation rotor output shaft, described radially torque adjustment motor comprises second stator and second p-m rotor, the conduct simultaneously of modulation rotor output shaft is the armature spindle of torque adjustment motor radially
Second stator of described radially torque adjustment motor is fixed on the madial wall of housing left half, and second p-m rotor is fixed on the modulation rotor output shaft, between second stator and second p-m rotor air gap L3 is arranged radially;
The outer toroid end face of first stator of described axial double-rotor machine is fixed on the separator left end face inwall of housing right half, first p-m rotor is fixed on the p-m rotor output shaft, the p-m rotor output shaft is rotationally connected by a side end face of the 3rd bearing and housing, the modulation rotor is between first stator and first p-m rotor, one end of modulation rotor output shaft is rotationally connected by second bearing and first p-m rotor, and modulates the separator of rotor output shaft by clutch shaft bearing and housing and be rotationally connected, opposite side end face by the 4th bearing and housing is rotationally connected; Between the modulation rotor and first stator air gap L1 is arranged; Between the modulation rotor and first p-m rotor air gap L2 is arranged;
First stator by first stator core and m mutually first stator winding constitute, when first stator winding is connected with the symmetrical alternating current of m, form the rotating magnetic field of 2p number of poles, m, p are positive integer;
First p-m rotor is made of first p-m rotor iron core and 2n first permanent magnet unit, first p-m rotor iron core is a disc, 2n first permanent magnet unit is arranged on the disk end face of the first p-m rotor iron core relative with modulating rotor, and with the p-m rotor output shaft be the center be the radiation wire evenly arrange, first permanent magnet unit is parallel magnetization vertically, the magnetizing direction of adjacent two first permanent magnet units is opposite, during the rotation of first p-m rotor, form the p-m rotor magnetic fidle of end of 2n number of poles, n is a positive integer;
The modulation rotor is made of rotor field spider, 2q piece magnetic inductive block and 2q piece collets, rotor field spider is by two nose circle faces and the closed frame that annulus constitutes, be crisscross arranged on each nose circle face q piece magnetic inductive block and q piece collets, and be that the center is the radiation wire and evenly arranges with the p-m rotor output shaft;
And satisfy the p=|hn+kq| relational expression and set up, wherein, h is a positive odd number, and k is an integer.
Advantage of the present invention: motor of the present invention is the motor of composite construction, have two rotating shafts, independently of one another and the rotating speed adjustable of the rotating speed of these two rotating shafts, the torque of two rotating shaft outputs is independently of one another and torque is adjustable, can make a rotating shaft realize the little torque operation of high speed like this, another rotating shaft realizes the low speed high torque operation.
The present invention can make internal combustion engine not rely on road conditions when being used in combination with internal combustion engine, operates in the peak efficiency district all the time, thereby has reduced fuel consume and exhaust emissions, realizes energy-saving and cost-reducing; It also can replace gearbox in the automobile simultaneously, and parts such as clutch and flywheel are simplified vehicle structure, and cost reduces.It can realize speed driving control, the wide region smoothly adjustable-speed of automobile by electronic device; Also having does not simultaneously need complicated cooling device, simple in structure, advantage that volume is little, with low cost.It also can be applicable in the commercial plant that two mechanical rotating shafts of different rotating speeds work simultaneously.
The invention belongs to brushless structure, having overcome has the brush composite structure motor because of the operational efficiency that adopts the electric brush slip ring feed structure and cause descends, reliability reduces and often need problem such as safeguard to parts such as brushes.
Description of drawings
Fig. 1 is execution mode one and two a structural representation;
Fig. 2 is the D-D cutaway view of Fig. 1;
Fig. 3 is the structural representation of execution mode three;
Fig. 4 is the E-E cutaway view of Fig. 3;
Fig. 5 is the structural representation of execution mode four;
Fig. 6 is the F-F cutaway view of Fig. 5;
Fig. 7 is the structural representation of execution mode five;
Fig. 8 is the G-G cutaway view of Fig. 7;
Fig. 9 is the structural representation of execution mode six;
Figure 10 is the H-H cutaway view of Fig. 9;
Figure 11 is the A-A cutaway view of Fig. 1, Fig. 3, Fig. 5, Fig. 7 and Fig. 9;
Figure 12 is the B-B cutaway view of Fig. 1, Fig. 3, Fig. 5, Fig. 7 and Fig. 9;
Figure 13 is the C-C cutaway view of Fig. 1, Fig. 3, Fig. 5, Fig. 7 and Fig. 9;
Figure 14 is execution mode seven and eight a structural representation;
Figure 15 is the L-L cutaway view of Figure 14;
Figure 16 is the structural representation of execution mode nine;
Figure 17 is the M-M cutaway view of Figure 16;
Figure 18 is the structural representation of execution mode ten;
Figure 19 is the N-N cutaway view of Figure 18;
Figure 20 is the structural representation of execution mode 11;
Figure 21 is the O-O cutaway view of Figure 20;
Figure 22 is the structural representation of execution mode 12;
Figure 23 is the P-P cutaway view of Figure 22;
Figure 24 is the I-I cutaway view of Figure 14, Figure 16, Figure 18, Figure 20 and Figure 22;
Figure 25 is the J-J cutaway view of Figure 14, Figure 16, Figure 18, Figure 20 and Figure 22;
Figure 26 is the K-K cutaway view of Figure 14, Figure 16, Figure 18, Figure 20 and Figure 22.
Embodiment
Embodiment one: present embodiment is described below in conjunction with Fig. 1 to Figure 13, present embodiment axially-the radial magnetic field modulation type brushless composite structure motor, housing 4 is divided into left and right sides two parts by separator, axially double-rotor machine and radially the torque adjustment motor be separately positioned in left and right sides two parts of housing 4, described axial double-rotor machine comprises first stator 5, modulation rotor 6, first p-m rotor 7, p-m rotor output shaft 1 and modulation rotor output shaft 9, described radially torque adjustment motor comprises second stator 11 and second p-m rotor 12,9 conducts simultaneously of modulation rotor output shaft are the armature spindle of torque adjustment motor radially
Each outer toroid end face of two first stators 5 of described axial double-rotor machine is separately fixed on the left and right sides end face inwall of housing 4 left halfs, first p-m rotor 7 is fixed on the p-m rotor output shaft 1, p-m rotor output shaft 1 is rotationally connected by the side end face of clutch shaft bearing 2 with housing 4, and be rotationally connected with modulation rotor 6 by second bearing 3 and the 4th bearing 10, modulation rotor 6 is between two first stators 5, the outside of first p-m rotor 7, one end of modulation rotor output shaft 9 is fixed on the modulation rotor 6, and modulation rotor output shaft 9 is rotationally connected by the separator of the 3rd bearing 8 with housing 4, be rotationally connected by the 5th bearing 13 another end face with housing 4; Between the annulus end face of the modulation rotor 6 and first stator 5 air gap L1 is arranged; Between the modulation rotor 6 and first p-m rotor 7 air gap L2 is arranged,
And satisfy the p=|hn+kq| relational expression and set up, wherein, h is a positive odd number, and k is an integer.
The described axial double-rotor machine of present embodiment is axially symmetric structure, and it can avoid axially producing asymmetric magnetic field pulling force.
The first stator core 5-2 is an annular, the outer toroid end face of the first stator core 5-2 is fixed on the end face inwall of housing 4 left halfs, radially have a plurality of grooves on the interior annulus end face of the first stator core 5-2, the open centre line of described a plurality of grooves with p-m rotor output shaft 1 be the center be the radiation wire evenly distribute, the first stator winding 5-1 embeds respectively and forms the m phase winding in the described groove, and m is a positive integer.
The first permanent magnet unit 7-1 that is provided with on first p-m rotor 7 has dual mode:
First kind: the 2n that embed to be provided with on each disk end face of the first permanent magnet unit 7-1 first a permanent magnet unit 7-1 be that the center is and radiates wire and evenly arrange with p-m rotor output shaft 1.
Second kind: the 2n of Surface Mount setting the first permanent magnet unit 7-1 be that the center is and radiates wire and evenly arrange with p-m rotor output shaft 1 on each disk end face of the first permanent magnet unit 7-1.
Second p-m rotor 12 is made of second p-m rotor 12-2 unshakable in one's determination and 2r the second permanent magnet unit 12-1, second p-m rotor 12-2 unshakable in one's determination is fixed on the modulation rotor output shaft 9,2r the second permanent magnet unit 12-1 is along the circumferential direction evenly arranged evenly, the individual second permanent magnet unit 12-1 of 2r embeds second p-m rotor 12-2 unshakable in one's determination inside or is fixed on the outer round surface of second p-m rotor 12-2 unshakable in one's determination, the magnetizing direction of adjacent two second permanent magnet unit 12-1 is opposite, and r is a positive integer.
Axially-and the radial magnetic field modulation type brushless composite structure motor is divided into two parts from attainable function: a part is axial double-rotor machine; Another part is a torque adjustment motor radially.The function that axial double-rotor machine is mainly realized is to make the rotating speed of modulating rotor output shaft 9 not rely on the rotating speed of p-m rotor output shaft 1, and make modulation rotor output shaft 9 can realize infinitely variable speeds, modulate rotor output shaft 9 simultaneously and export corresponding torque according to certain ratio according to the torque of the input of p-m rotor output shaft 1.Radially the effect of torque adjustment motor is the needs according to actual loading, input driving torque or brake torque, the torque that makes modulation rotor output shaft 9 finally output to load does not rely on the torque that p-m rotor output shaft 1 is imported, and has realized the flexible of torque.
Following first labor is the operation principle of axial double-rotor machine once:
Have two air gap L1 in the axial double-rotor machine structure of present embodiment, action mechanism of magnetic field is identical in these two air gaps; Have two air gap L2 in the axial double-rotor machine structure of present embodiment, action mechanism of magnetic field also is identical in these two air gaps.This execution mode is the left-right symmetric structure, is the operation principle that example illustrates this execution mode with the stator in left side, the left end face of modulation rotor and the left surface of p-m rotor below, and the right side mechanism of action is identical with the left side.
At first prime mover drives first p-m rotor 7 by p-m rotor output shaft 1 with driving torque T and is rotated counterclockwise, and its rotary speed is Ω
1, to first stator, 5 directions, the view direction in the following describes is identical from first p-m rotor 7;
In order to make first p-m rotor, 7 suffered equalising torques, will feed the symmetrical alternating current of m this moment among the first stator winding 5-1 of first stator 5, produce the stator rotating magnetic field of 2p number of poles in outer air gap L1, and the rotary speed of described stator rotating magnetic field is Ω
2
Described stator rotating magnetic field is by the modulating action of modulation rotor 6, produces the rotating magnetic field with first p-m rotor, 7 identical numbers of poles in internal layer air gap L2, by the interaction in magnetic field, and the internal modulation torque T of generation
1Act on first p-m rotor 7, and torque T
1Direction be clockwise direction;
By principle of moment balance as can be known, T
1=-T, the two equal and opposite in direction, direction is opposite;
According to the principle of active force and reaction force, in internal layer air gap L2, exist and internal modulation torque T as can be known again
1The moment T ' that equal and opposite in direction and direction are opposite
1Act on the modulation rotor 6 T ' simultaneously
1Direction be counterclockwise;
Simultaneously, internal layer is with speed Ω
1The p-m rotor rotating magnetic field that first p-m rotor 7 of rotation produces produces the rotating magnetic field of 2p number of poles by the modulating action of modulation rotor 6 in outer air gap L1, interact with the stator rotating magnetic field, can produce external modulation torque T
2, and act on first stator 5, and external modulation torque T
2Direction is a clockwise direction;
According to the principle of active force and reaction force, in outer air gap L1, exist and external modulation torque T as can be known
2The moment T ' that equal and opposite in direction and direction are opposite
2Act on simultaneously on the modulation rotor 6, and direction is counterclockwise;
Therefore, the output torque T of modulation rotor 6
3Satisfy condition: T
3=T '
1+ T '
2=-(T
1+ T
2), the rotary speed of modulation rotor 6 is Ω
3, and direction is counterclockwise, modulation rotor output shaft 9 is with torque T
3Drive load.
This shows the output torque T of modulation rotor 6
3Be internal modulation torque T
1With external modulation torque T
2Synthetic torque, and the output torque of first p-m rotor 7 is internal modulation torque T
1Therefore, the output torque T of modulation rotor 6
3Will be greater than the output torque T of first p-m rotor 7
1, and the two has certain no-load voltage ratio.
Dual-rotor structure motor of the present invention can be regulated rotating speed, the rotary speed Ω of stator rotating magnetic field by the frequency f of regulating the electric current that feeds the first stator winding 5-1
2, the modulation rotor 6 rotary speed Ω
3Rotary speed Ω with first p-m rotor 7
1Satisfy relational expression:
Make a concrete analysis of the principle of several special circumstances and generation thereof below:
1, modulating under the rotor 6 actionless situations, i.e. Ω
3=0, substitution formula (1) then exists following relational expression to set up:
The principle of its generation is:
Under modulation rotor 6 actionless situations, the symmetrical alternating current of the logical m of first stator winding 5-1 this moment produces the stator rotating magnetic field, and first p-m rotor 7 also to have produced rotary speed under the driving of prime mover in the space be Ω
1The rotor rotating magnetic field, this mode of operation can equivalence be regarded the mode of operation of magnetic gear as.Operation principle according to magnetic gear, and magnetic inductive block is counted the relational expression that q satisfies: p=|hn+kq| in the rotating magnetic field number of pole-pairs n of the number of pole-pairs p of stator rotating magnetic field, first p-m rotor 7 and the modulation rotor 6, as can be known: when modulation rotor 6 transfixions, the rotary speed Ω of stator rotating magnetic field then
2Rotary speed Ω with first p-m rotor 7 of internal layer
1Satisfy relational expression (2), the rotary speed Ω of stator rotating magnetic field that hence one can see that
2Rotary speed Ω with first p-m rotor 7
1Have certain no-load voltage ratio relation, regulate that either party rotating speed all can make the opposing party's rotating speed change in the two.
2, feed frequency f=0 of the electric current of the first stator winding 5-1, when then the first stator winding 5-1 feeds direct current, produce the stationary magnetic field, do not rotate Ω
2=0, substitution formula (1) then exists following relational expression to set up:
The principle of its generation is:
When the first stator winding 5-1 feeds direct current, produce the stationary magnetic field, while first p-m rotor 7 has produced rotary speed in the space under the driving of prime mover be Ω
1The rotor rotating magnetic field, and do not fix modulation rotor 6 this moment, this mode of operation can equivalence be regarded the another kind of mode of operation of magnetic gear as.Operation principle according to magnetic gear, and magnetic inductive block is counted the relational expression that q satisfies: p=|hn+kq| in the rotating magnetic field number of pole-pairs n of the number of pole-pairs p of stator rotating magnetic field, first p-m rotor 7 and the modulation rotor 6, as can be known: modulation rotor 6 will be rotated with certain speed, modulation rotor 6 rotary speed Ω
3Rotary speed Ω with first p-m rotor 7
1To satisfy relational expression (3), hence one can see that the modulation rotor 6 rotary speed Ω
3Rotary speed Ω with first p-m rotor 7
1Have certain no-load voltage ratio, regulate that either party rotating speed all can make the opposing party's rotating speed change in the two;
Describe the generation principle of formula (1) below, if the stationary magnetic field " rotation " that first stator 5 is produced, promptly when the first stator winding 5-1 feeds symmetrical alternating current generation stator rotating magnetic field, can derive the rotary speed Ω of stator rotating magnetic field according to the magnetic field modulation principle
2Rotary speed Ω with modulation rotor 6
3Rotary speed Ω with first p-m rotor 7
1Satisfy relational expression (1).Therefore, as the speed Ω of internal layer first p-m rotor 7
1Under the constant situation, regulate the rotary speed Ω of stator rotating magnetic field
2, can realize modulating the rotation rotating speed Ω of rotor 6
3Adjusting.This shows the rotary speed Ω of modulation rotor 6
3Be rotary speed Ω by first p-m rotor 7
1Rotary speed Ω with the stator rotating magnetic field
2Common decision.
To sum up, double-rotor machine of the present invention is regulated rotating speed according to the frequency f of the electric current of formula (1) the adjusting feeding first stator winding 5-1.
Following labor is the operation principle of torque adjustment motor radially once:
Because second p-m rotor 12 is fixed on the modulation rotor output shaft 9, so second p-m rotor 12 is with the rotating speed rotation of modulation rotor output shaft 9.When the second stator winding 11-2 feeds polyphase alternating current, produce and the identical rotating magnetic field of second p-m rotor, 12 magnetic field numbers of poles in the space, interaction by magnetic field produces torque and affacts on second p-m rotor 12, is delivered to simultaneously on the modulation rotor output shaft 9.
When axial double-rotor machine is input to the torque that the torque on the modulation rotor output shaft 9 needs greater than load, electric current by the control input second stator winding 11-2, make radially the torque adjustment machine operation at the dynamic brake state, this moment, radially torque adjustment motor generation brake torque acted on the modulation rotor output shaft 9, therefore, the torque that has guaranteed 9 input and output of modulation rotor output shaft balances each other.At this moment, axially the energy part that is input on the modulation rotor output shaft 9 of double-rotor machine is used for driving load, and another part is used for driving radially that the torque adjustment motor makes its generating, thus make 9 input and output of modulation rotor output shaft can amount phase equilibrium.
When axial double-rotor machine is input to the torque that the torque on the modulation rotor output shaft 9 needs less than load, electric current by the control input second stator winding 11-2, make radially the torque adjustment machine operation at the motorized motions state, this moment, radially torque adjustment motor generation driving torque acted on the modulation rotor output shaft 9, therefore, the torque that has guaranteed 9 input and output of modulation rotor output shaft balances each other.At this moment, an energy part that drives load derives from axial double-rotor machine and is input to the energy of modulating on the rotor output shaft 9, another part derives from the radially energy of torque adjustment motor input, thereby makes the energy amount phase equilibrium of modulation rotor output shaft 9 input and output.
When axial double-rotor machine is input to torque on the modulation rotor output shaft 9 when torque that load needs equates, radially the torque adjustment motor is not worked at this moment.At this moment, the energy that drives load all derives from axial double-rotor machine and is input to the energy of modulating on the rotor output shaft 9, thereby makes the energy amount phase equilibrium of modulation rotor output shaft input and output.
Embodiment two: present embodiment is described below in conjunction with Fig. 1 and Fig. 2, the difference of present embodiment and execution mode one is, the second permanent magnet unit 12-1 is arranged on the outer round surface of second p-m rotor 12-2 unshakable in one's determination, the second permanent magnet unit 12-1 radially magnetizes or parallel magnetization radially, and other structure is identical with execution mode one with connected mode.
Embodiment three: present embodiment is described below in conjunction with Fig. 3 and Fig. 4, the difference of present embodiment and execution mode one is, the second permanent magnet unit 12-1 embeds in the outer round surface that is arranged on second p-m rotor 12-2 unshakable in one's determination, the second permanent magnet unit 12-1 radially magnetizes or parallel magnetization radially, and other structure is identical with execution mode one with connected mode.
Embodiment four: present embodiment is described below in conjunction with Fig. 5 and Fig. 6, the difference of present embodiment and execution mode one is, the cross section of the second permanent magnet unit 12-1 is a rectangle, 2r the second permanent magnet unit 12-1 is that the center distributes at the inner radiation shape of second p-m rotor 12-2 unshakable in one's determination with modulation rotor output shaft 9, the magnetizing direction of the second permanent magnet unit 12-1 is parallel magnetization tangentially, and other structure is identical with execution mode one with connected mode.
P-m rotor belongs to magnetism-collected structure in the present embodiment, and under the parallel connection effect of p-m rotor adjacent permanent magnet, making has two permanent magnets to provide magnetic flux to air gap under every pole field, can improve air gap flux density, especially more outstanding under the more situation of number of poles.
Embodiment five: present embodiment is described below in conjunction with Fig. 7 and Fig. 8, the difference of present embodiment and execution mode one is, the cross section of the second permanent magnet unit 12-1 is a rectangle, 2r the second permanent magnet unit 12-1 is that the center is uniform in the inside of second p-m rotor 12-2 unshakable in one's determination with modulation rotor output shaft 9, the angle of every adjacent two second permanent magnet unit 12-1 is 360 °/2r, the magnetizing direction of the second permanent magnet unit 12-1 is parallel magnetization radially, and other structure is identical with execution mode one with connected mode.
Embodiment six: present embodiment is described below in conjunction with Fig. 9 and Figure 10, the difference of present embodiment and execution mode one is, the permanent magnet that each second permanent magnet unit 12-1 is a rectangle by two cross sections constitutes V font structure, the magnetizing direction of two second permanent magnets is respectively perpendicular to two limits of V font, and point to the opening direction of V font simultaneously or deviate from the opening direction of V font simultaneously, the second permanent magnet unit 12-1 of 2r V font is the inside that the center is distributed on second p-m rotor 12-2 unshakable in one's determination with modulation rotor output shaft 9, the opening of V font is opening outwardly radially, and other structure is identical with execution mode one with connected mode.
P-m rotor belongs to magnetism-collected structure in the present embodiment, and under the parallel connection effect that constitutes V font adjacent permanent magnet, making has two permanent magnets to provide magnetic flux to air gap under every pole field, can improve air gap flux density.
Embodiment seven: present embodiment is described below in conjunction with Figure 14 to Figure 26, present embodiment axially-the radial magnetic field modulation type brushless composite structure motor, housing 4 is divided into left and right sides two parts by separator, radially torque adjustment motor and axial double-rotor machine are separately positioned in left and right sides two parts of housing 4, described axial double-rotor machine comprises first stator 5, modulation rotor 6, first p-m rotor 7, p-m rotor output shaft 1 and modulation rotor output shaft 9, described radially torque adjustment motor comprises second stator 11 and second p-m rotor 12,9 conducts simultaneously of modulation rotor output shaft are the armature spindle of torque adjustment motor radially
The outer toroid end face of first stator 5 of described axial double-rotor machine is fixed on the separator inwall of housing 4 right halfs, first p-m rotor 7 is fixed on the p-m rotor output shaft 1, p-m rotor output shaft 1 is rotationally connected by the side end face of the 3rd bearing 8 with housing 4, modulation rotor 6 is between first stator 5 and first p-m rotor 7, one end of modulation rotor output shaft 9 is rotationally connected by second bearing 3 and first p-m rotor 7, and modulation rotor output shaft 9 is rotationally connected by the separator of clutch shaft bearing 2 with housing 4, be rotationally connected by the opposite side end face of the 4th bearing 10 with housing 4; Between the modulation rotor 6 and first stator 5 air gap L1 is arranged; Between the modulation rotor 6 and first p-m rotor 7 air gap L2 is arranged;
First p-m rotor 7 is made of first p-m rotor 7-2 unshakable in one's determination and 2n the first permanent magnet unit 7-1, first p-m rotor 7-2 unshakable in one's determination is a disc, 2n the first permanent magnet unit 7-1 is arranged on the disk end face of the first p-m rotor unshakable in one's determination 7-2 relative with modulating rotor 6, and with p-m rotor output shaft 1 be the center be the radiation wire evenly arrange, the first permanent magnet unit 7-1 is parallel magnetization vertically, the magnetizing direction of adjacent two first permanent magnet unit 7-1 is opposite, during 7 rotations of first p-m rotor, form the p-m rotor magnetic fidle of end of 2n number of poles, n is a positive integer;
And satisfy the p=|hn+kq| relational expression and set up, wherein, h is a positive odd number, and k is an integer.
The structure of the described motor of present embodiment is axial unilateral, makes that the volume of motor is littler, more compact structure.
The first stator core 5-2 is an annular, the outer toroid end face of the first stator core 5-2 is fixed on the separator inwall of housing 4 right halfs, radially have a plurality of grooves on the interior annulus end face of the first stator core 5-2, the open centre line of described a plurality of grooves with p-m rotor output shaft 1 be the center be the radiation wire evenly distribute, the first stator winding 5-1 embeds respectively and forms the m phase winding in the described groove, and m is a positive integer.
The first permanent magnet unit 7-1 that is provided with on first p-m rotor 7 has dual mode:
First kind: the 2n that embed to be provided with on each disk end face of the first permanent magnet unit 7-1 first a permanent magnet unit 7-1 be that the center is and radiates wire and evenly arrange with p-m rotor output shaft 1.
Second kind: the 2n of Surface Mount setting the first permanent magnet unit 7-1 be that the center is and radiates wire and evenly arrange with p-m rotor output shaft 1 on each disk end face of the first permanent magnet unit 7-1.
Second p-m rotor 12 is made of second p-m rotor 12-2 unshakable in one's determination and 2r the second permanent magnet unit 12-1, second p-m rotor 12-2 unshakable in one's determination is fixed on the modulation rotor output shaft 9,2r the second permanent magnet unit 12-1 is along the circumferential direction evenly arranged evenly, the individual second permanent magnet unit 12-1 of 2r embeds second p-m rotor 12-2 unshakable in one's determination inside or is fixed on the outer round surface of second p-m rotor 12-2 unshakable in one's determination, the magnetizing direction of adjacent two second permanent magnet unit 12-1 is opposite, and r is a positive integer.
The principle of the described motor of present embodiment and execution mode one are described similar, repeat no more.
Embodiment eight: present embodiment is described below in conjunction with Figure 14 and Figure 15, the difference of present embodiment and execution mode one is, the second permanent magnet unit 12-1 is arranged on the outer round surface of second p-m rotor 12-2 unshakable in one's determination, the second permanent magnet unit 12-1 radially magnetizes or parallel magnetization radially, and other structure is identical with execution mode seven with connected mode.
Embodiment nine: present embodiment is described below in conjunction with Figure 16 and Figure 17, the difference of present embodiment and execution mode one is, the second permanent magnet unit 12-1 embeds in the outer round surface that is arranged on second p-m rotor 12-2 unshakable in one's determination, the second permanent magnet unit 12-1 radially magnetizes or parallel magnetization radially, and other structure is identical with execution mode seven with connected mode.
Embodiment ten: present embodiment is described below in conjunction with Figure 18 and Figure 19, the difference of present embodiment and execution mode one is, the cross section of the second permanent magnet unit 12-1 is a rectangle, 2r the second permanent magnet unit 12-1 is that the center distributes at the inner radiation shape of second p-m rotor 12-2 unshakable in one's determination with modulation rotor output shaft 9, the magnetizing direction of the second permanent magnet unit 12-1 is parallel magnetization tangentially, and other structure is identical with execution mode seven with connected mode.
P-m rotor belongs to magnetism-collected structure in the present embodiment, and under the parallel connection effect of p-m rotor adjacent permanent magnet, making has two permanent magnets to provide magnetic flux to air gap under every pole field, can improve air gap flux density, especially more outstanding under the more situation of number of poles.
Embodiment 11: present embodiment is described below in conjunction with Figure 20 and Figure 21, the difference of present embodiment and execution mode one is, the cross section of the second permanent magnet unit 12-1 is a rectangle, 2r the second permanent magnet unit 12-1 is that the center is uniform in the inside of second p-m rotor 12-2 unshakable in one's determination with modulation rotor output shaft 9, the angle of every adjacent two second permanent magnet unit 12-1 is 360 °/2r, the magnetizing direction of the second permanent magnet unit 12-1 is parallel magnetization radially, and other structure is identical with execution mode one with connected mode.
Embodiment 12: present embodiment is described below in conjunction with Figure 22 and Figure 23, the difference of present embodiment and execution mode one is, the permanent magnet that each second permanent magnet unit 12-1 is a rectangle by two cross sections constitutes V font structure, the magnetizing direction of two second permanent magnets is respectively perpendicular to two limits of V font, and point to the opening direction of V font simultaneously or deviate from the opening direction of V font simultaneously, the second permanent magnet unit 12-1 of 2r V font is the inside that the center is distributed on second p-m rotor 12-2 unshakable in one's determination with modulation rotor output shaft 9, the opening of V font is opening outwardly radially, and other structure is identical with execution mode one with connected mode.
P-m rotor belongs to magnetism-collected structure in the present embodiment, and under the parallel connection effect that constitutes V font adjacent permanent magnet, making has two permanent magnets to provide magnetic flux to air gap under every pole field, can improve air gap flux density.
Claims (10)
1. axially-the radial magnetic field modulation type brushless composite structure motor, it is characterized in that, housing (4) is divided into left and right sides two parts by separator, axially double-rotor machine and radially the torque adjustment motor be separately positioned in left and right sides two parts of housing (4), described axial double-rotor machine comprises first stator (5), modulation rotor (6), first p-m rotor (7), p-m rotor output shaft (1) and modulation rotor output shaft (9), described radially torque adjustment motor comprises second stator (11) and second p-m rotor (12), modulation rotor output shaft (9) conduct simultaneously is the armature spindle of torque adjustment motor radially
Second stator (11) of described radially torque adjustment motor is fixed on the madial wall of housing (4) right half, second p-m rotor (12) is fixed on the modulation rotor output shaft (9), between second stator (11) and second p-m rotor (12) air gap L3 is arranged radially;
Each outer toroid end face of two first stators (5) of described axial double-rotor machine is separately fixed on the left and right sides end face inwall of housing (4) left half, first p-m rotor (7) is fixed on the p-m rotor output shaft (1), p-m rotor output shaft (1) is rotationally connected by the side end face of clutch shaft bearing (2) with housing (4), and be rotationally connected with modulation rotor (6) by second bearing (3) and the 4th bearing (10), modulation rotor (6) is positioned between two first stators (5), the outside of first p-m rotor (7), one end of modulation rotor output shaft (9) is fixed on the modulation rotor (6), and modulation rotor output shaft (9) is rotationally connected by the separator of the 3rd bearing (8) with housing (4), be rotationally connected by the 5th bearing (13) another end face with housing (4); Between the annulus end face of modulation rotor (6) and first stator (5) air gap L1 is arranged; Between modulation rotor (6) and first p-m rotor (7) air gap L2 is arranged,
First stator (5) by first stator core (5-2) and m mutually first stator winding (5-1) constitute, when first stator winding (5-1) is connected with the symmetrical alternating current of m, form the rotating magnetic field of 2p number of poles, m, p are positive integer;
First p-m rotor (7) is made of the first p-m rotor iron core (7-2) and a plurality of first permanent magnet unit (7-1), the first p-m rotor iron core (7-2) is a disc, be symmetrical arranged first permanent magnet unit (7-1) on the two side discs end faces of the first p-m rotor iron core (7-2), the 2n that is provided with on each disk end face first permanent magnet unit (7-1) be that the center is and radiates wire and evenly arrange with p-m rotor output shaft (1), first permanent magnet unit (7-1) is parallel magnetization vertically, the magnetizing direction of adjacent two first permanent magnet units of same disk end face (7-1) is opposite, two first permanent magnet units (7-1) magnetizing direction of position symmetry is identical on the two side discs end faces, during first p-m rotor (7) rotation, form the p-m rotor magnetic fidle of end of 2n number of poles, n is a positive integer;
Modulation rotor (6) is made of rotor field spider (6-3), 2q piece magnetic inductive block (6-1) and 2q piece collets (6-2), rotor field spider (6-3) is by two nose circle faces and the closed frame that annulus constitutes, be crisscross arranged on each nose circle face q piece magnetic inductive block (6-1) and q piece collets (6-2), and be that the center is the radiation wire and evenly arranges with p-m rotor output shaft (1);
And satisfy the p=|hn+kq| relational expression and set up, wherein, h is a positive odd number, and k is an integer.
2. according to claim 1 axially-the radial magnetic field modulation type brushless composite structure motor, it is characterized in that, first stator core (5-2) is an annular, the outer toroid end face of first stator core (5-2) is fixed on the end face inwall of housing (4) left half, radially have a plurality of grooves on the interior annulus end face of first stator core (5-2), the open centre line of described a plurality of grooves with p-m rotor output shaft (1) be the center be the radiation wire evenly distribute, first stator winding (5-1) embeds respectively and forms the m phase winding in the described groove, and m is a positive integer.
3. according to claim 1 axially-the radial magnetic field modulation type brushless composite structure motor, it is characterized in that, second stator (11) by second stator core (11-1) and m ' mutually second stator winding (11-2) constitute, second stator core (11-1) is an annular, its internal circular surfaces has a plurality of grooves vertically, the open centre line of described a plurality of grooves evenly distributes around modulation rotor output shaft (9), second stator winding (11-2) embeds respectively and forms m ' phase winding in the described groove, and m ' is a positive integer;
Second p-m rotor (12) is made of the second p-m rotor iron core (12-2) and 2r second permanent magnet unit (12-1), the second p-m rotor iron core (12-2) is fixed on the modulation rotor output shaft (9), 2r second permanent magnet unit (12-1) is along the circumferential direction evenly arranged evenly, individual second permanent magnet unit (12-1) of 2r embeds the second p-m rotor iron core (12-2) inside or is fixed on the outer round surface of the second p-m rotor iron core (12-2), the magnetizing direction of adjacent two second permanent magnet units (12-1) is opposite, and r is a positive integer.
4. according to claim 3 axially-the radial magnetic field modulation type brushless composite structure motor, it is characterized in that second permanent magnet unit (12-1) is provided with by in following four kinds of modes any one:
First kind: second permanent magnet unit (12-1) is arranged on the outer round surface of the second p-m rotor iron core (12-2), and second permanent magnet unit (12-1) radially magnetizes or parallel magnetization radially;
Second kind: second permanent magnet unit (12-1) embeds and to be arranged in the outer round surface of the second p-m rotor iron core (12-2), and second permanent magnet unit (12-1) radially magnetizes or parallel magnetization radially;
The third: the cross section of second permanent magnet unit (12-1) is a rectangle, 2r second permanent magnet unit (12-1) be the inner radiation shape distribution of center at the second p-m rotor iron core (12-2) with modulation rotor output shaft (9), and the magnetizing direction of second permanent magnet unit (12-1) is parallel magnetization tangentially;
The 4th kind: the cross section of second permanent magnet unit (12-1) is a rectangle, 2r second permanent magnet unit (12-1) is that the center is uniform in the inside of the second p-m rotor iron core (12-2) with modulation rotor output shaft (9), the angle of every adjacent two second permanent magnet units (12-1) is 360 °/2r, and the magnetizing direction of second permanent magnet unit (12-1) is parallel magnetization radially.
5. according to claim 3 axially-the radial magnetic field modulation type brushless composite structure motor, it is characterized in that, the permanent magnet that each second permanent magnet unit (12-1) is a rectangle by two cross sections constitutes V font structure, the magnetizing direction of two permanent magnets is respectively perpendicular to two limits of V font, and point to the opening direction of V font simultaneously or deviate from the opening direction of V font simultaneously, second permanent magnet unit (12-1) of 2r V font is the inside that the center is distributed on the second p-m rotor iron core (12-2) with modulation rotor output shaft (9), and the opening of V font is opening outwardly radially.
6. axially-the radial magnetic field modulation type brushless composite structure motor, it is characterized in that, housing (4) is divided into left and right sides two parts by separator, radially torque adjustment motor and axial double-rotor machine are separately positioned in left and right sides two parts of housing (4), described axial double-rotor machine comprises first stator (5), modulation rotor (6), first p-m rotor (7), p-m rotor output shaft (1) and modulation rotor output shaft (9), described radially torque adjustment motor comprises second stator (11) and second p-m rotor (12), modulation rotor output shaft (9) conduct simultaneously is the armature spindle of torque adjustment motor radially
Second stator (11) of described radially torque adjustment motor is fixed on the madial wall of housing (4) left half, second p-m rotor (12) is fixed on the modulation rotor output shaft (9), between second stator (11) and second p-m rotor (12) air gap L3 is arranged radially;
The outer toroid end face of first stator (5) of described axial double-rotor machine is fixed on the separator inwall of housing (4) right half, first p-m rotor (7) is fixed on the p-m rotor output shaft (1), p-m rotor output shaft (1) is rotationally connected by the side end face of the 3rd bearing (8) with housing (4), modulation rotor (6) is positioned between first stator (5) and first p-m rotor (7), one end of modulation rotor output shaft (9) is rotationally connected by second bearing (3) and first p-m rotor (7), and modulation rotor output shaft (9) is rotationally connected by the separator of clutch shaft bearing (2) with housing (4), be rotationally connected by the opposite side end face of the 4th bearing (10) with housing (4); Between modulation rotor (6) and first stator (5) air gap L1 is arranged; Between modulation rotor (6) and first p-m rotor (7) air gap L2 is arranged;
First stator (5) by first stator core (5-2) and m mutually first stator winding (5-1) constitute, when first stator winding (5-1) is connected with the symmetrical alternating current of m, form the rotating magnetic field of 2p number of poles, m, p are positive integer;
First p-m rotor (7) is made of the first p-m rotor iron core (7-2) and 2n first permanent magnet unit (7-1), the first p-m rotor iron core (7-2) is a disc, 2n first permanent magnet unit (7-1) is arranged on the disk end face of the first p-m rotor iron core (7-2) relative with modulating rotor (6), and with p-m rotor output shaft (1) be the center be the radiation wire evenly arrange, first permanent magnet unit (7-1) is parallel magnetization vertically, the magnetizing direction of adjacent two first permanent magnet units (7-1) is opposite, during first p-m rotor (7) rotation, form the p-m rotor magnetic fidle of end of 2n number of poles, n is a positive integer;
Modulation rotor (6) is made of rotor field spider (6-3), 2q piece magnetic inductive block (6-1) and 2q piece collets (6-2), rotor field spider (6-3) is by two nose circle faces and the closed frame that annulus constitutes, be crisscross arranged on each nose circle face q piece magnetic inductive block (6-1) and q piece collets (6-2), and be that the center is the radiation wire and evenly arranges with p-m rotor output shaft (1);
And satisfy the p=|hn+kq| relational expression and set up, wherein, h is a positive odd number, and k is an integer.
7. according to claim 6 axially-the radial magnetic field modulation type brushless composite structure motor, it is characterized in that, first stator core (5-2) is an annular, the outer toroid end face of first stator core (5-2) is fixed on the separator inwall of housing (4) right half, radially have a plurality of grooves on the interior annulus end face of first stator core (5-2), the open centre line of described a plurality of grooves with p-m rotor output shaft (1) be the center be the radiation wire evenly distribute, first stator winding (5-1) embeds respectively and forms the m phase winding in the described groove, and m is a positive integer.
8. according to claim 6 axially-the radial magnetic field modulation type brushless composite structure motor, it is characterized in that, second stator (11) by second stator core (11-1) and m ' mutually second stator winding (11-2) constitute, second stator core (11-1) is an annular, its internal circular surfaces has a plurality of grooves vertically, the open centre line of described a plurality of grooves evenly distributes around modulation rotor output shaft (9), second stator winding (11-2) embeds respectively and forms m ' phase winding in the described groove, and m ' is a positive integer;
Second p-m rotor (12) is made of the second p-m rotor iron core (12-2) and 2r second permanent magnet unit (12-1), the second p-m rotor iron core (12-2) is fixed on the modulation rotor output shaft (9), 2r second permanent magnet unit (12-1) is along the circumferential direction evenly arranged evenly, individual second permanent magnet unit (12-1) of 2r embeds the second p-m rotor iron core (12-2) inside or is fixed on the outer round surface of the second p-m rotor iron core (12-2), the magnetizing direction of adjacent two second permanent magnet units (12-1) is opposite, and r is a positive integer.
9. according to claim 8 axially-the radial magnetic field modulation type brushless composite structure motor, it is characterized in that second permanent magnet unit (12-1) is provided with by in following four kinds of modes any one:
First kind: second permanent magnet unit (12-1) is arranged on the outer round surface of the second p-m rotor iron core (12-2), and second permanent magnet unit (12-1) radially magnetizes or parallel magnetization radially;
Second kind: second permanent magnet unit (12-1) embeds and to be arranged in the outer round surface of the second p-m rotor iron core (12-2), and second permanent magnet unit (12-1) radially magnetizes or parallel magnetization radially;
The third: the cross section of second permanent magnet unit (12-1) is a rectangle, 2r second permanent magnet unit (12-1) be the inner radiation shape distribution of center at the second p-m rotor iron core (12-2) with modulation rotor output shaft (9), and the magnetizing direction of second permanent magnet unit (12-1) is parallel magnetization tangentially;
The 4th kind: the cross section of second permanent magnet unit (12-1) is a rectangle, 2r second permanent magnet unit (12-1) is that the center is uniform in the inside of the second p-m rotor iron core (12-2) with modulation rotor output shaft (9), the angle of every adjacent two second permanent magnet units (12-1) is 360 °/2r, and the magnetizing direction of second permanent magnet unit (12-1) is parallel magnetization radially.
10. according to claim 8 axially-the radial magnetic field modulation type brushless composite structure motor, it is characterized in that, the permanent magnet that each second permanent magnet unit (12-1) is a rectangle by two cross sections constitutes V font structure, the magnetizing direction of two permanent magnets is respectively perpendicular to two limits of V font, and point to the opening direction of V font simultaneously or deviate from the opening direction of V font simultaneously, second permanent magnet unit (12-1) of 2r V font is the inside that the center is distributed on the second p-m rotor iron core (12-2) with modulation rotor output shaft (9), and the opening of V font is opening outwardly radially.
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| CN102738984A (en) * | 2012-06-21 | 2012-10-17 | 哈尔滨工业大学 | Brushless double-fed motor with multiple air gaps |
| CN104377918A (en) * | 2014-12-10 | 2015-02-25 | 哈尔滨工业大学 | Axial-radial magnetic field electromagnetic planetary gear power divider |
| CN105207432A (en) * | 2015-09-30 | 2015-12-30 | 河南科技大学 | Double-rotor electric motor |
| CN105375714A (en) * | 2015-11-24 | 2016-03-02 | 华中科技大学 | Dual-mechanical port and dual-electric port permanent magnet motor |
| CN106515406A (en) * | 2016-11-18 | 2017-03-22 | 精进电动科技股份有限公司 | Coaxial multi-motor driving system and vehicle comprising same |
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| CN104377918A (en) * | 2014-12-10 | 2015-02-25 | 哈尔滨工业大学 | Axial-radial magnetic field electromagnetic planetary gear power divider |
| CN105207432A (en) * | 2015-09-30 | 2015-12-30 | 河南科技大学 | Double-rotor electric motor |
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| CN110557002A (en) * | 2019-09-30 | 2019-12-10 | 华中科技大学 | Totally-enclosed torque motor with magnetic gear reducer |
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