CN101951088B - Radial-shaft radial magnetic field modulated brushless composite structure motor - Google Patents

Abstract

The invention discloses a radial-shaft radial magnetic field modulated brushless composite structure motor, belonging to the field of a motor, and solving the problems that the system has heavy volume, complex structure, higher price, restricted performance, and can not effectively output the power as the existing engines and other system components in serial-type, parallel-type, parallel-serial drive devices can not be simply and efficiently matched. A radial double rotor and a shaft radial torque adjusting motor are arranged in the shell of the motor in parallel; the permanent magnet rotor of the radial double rotor is driven by an original engine to form 2n poloidal magnetic field, and the stator forms a 2p poloidal magnetic field; the needed rotating speed is output by the output shaft of a modulated ring rotor with q numbered magnetic conducting blocks and insulation blocks, and p is equal to the absolute value of the sum of hn and kq; the output rotating speed thereof dose not depend on the input rotating speed; and the stepless speed change is realized; the shaft radial torque adjusting motor inputs driving torque or braking torque according to the actual load requirement, thus satisfying the actual torque requirement, and leading the energy input and output by the output shaft of the modulated ring rotor to be balanced.

Description

Radially-diameter of axle is to magnetic field modulation type brushless composite structure motor

Technical field

The present invention relates to radially-diameter of axle is to magnetic field modulation type brushless composite structure motor, belongs 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 provides radially a kind of-diameter of axle to magnetic field modulation type brushless composite structure motor.

The present invention radially-diameter of axle is set side by side with radially double-rotor machine and the diameter of axle to the torque adjustment motor to magnetic field modulation type brushless composite structure motor in housing, described radially double-rotor machine comprises first stator, modulation rotor, first p-m rotor, p-m rotor output shaft and modulation rotor output shaft, the described diameter of axle comprises second stator and second p-m rotor to the torque adjustment motor, modulation rotor output shaft is simultaneously as the armature spindle of the diameter of axle to the torque adjustment motor

The described diameter of axle is fixed on the madial wall of housing to second stator of torque adjustment motor, 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, and air gap L4 is in axial direction arranged;

First stator of described radially double-rotor machine is fixed on the madial wall of housing, first p-m rotor is fixed on the p-m rotor output shaft, the modulation rotor is between first stator and first p-m rotor, the p-m rotor output shaft is rotationally connected by clutch shaft bearing and housing, and the p-m rotor output shaft is rotationally connected with the modulation rotor by second bearing and the 4th bearing, one end of modulation rotor output shaft is fixed on the modulation rotor, and modulation rotor output shaft is rotationally connected by the 3rd bearing and housing; 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, 2n first permanent magnet unit is along the circumferential direction evenly arranged evenly, individual first permanent magnet unit of 2n embeds first p-m rotor inside unshakable in one's determination or is fixed on the outer round surface of the first p-m rotor iron core, the magnetizing direction of adjacent two first permanent magnet unit 7-1 is opposite, during the rotation of first p-m rotor, form the p-m rotor Surface field of 2n number of poles, n is a positive integer;

The modulation rotor is made of rotor field spider, q piece magnetic inductive block and q piece collets, rotor field spider outer round surface along the circumferential direction be crisscross arranged magnetic inductive block and collets;

And satisfy the p=|hn+kq| formula 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 A-A cutaway view of Fig. 1;

Fig. 3 is the structural representation of execution mode three;

Fig. 4 is the D-D cutaway view of Fig. 3;

Fig. 5 is the structural representation of execution mode four;

Fig. 6 is the E-E cutaway view of Fig. 5;

Fig. 7 is the structural representation of execution mode five;

Fig. 8 is the F-F cutaway view of Fig. 7;

Fig. 9 is the structural representation of execution mode six;

Figure 10 is the G-G cutaway view of Fig. 9;

Figure 11 is the B-B cutaway view of Fig. 1, Fig. 3, Fig. 5, Fig. 7 and Fig. 9;

Figure 12 is the C-C cutaway view of Fig. 1, Fig. 3, Fig. 5, Fig. 7 and Fig. 9;

Figure 13 is a schematic diagram of the present invention.

Embodiment

Embodiment one: present embodiment is described below in conjunction with Fig. 1 to Figure 13, the motor of present embodiment is set side by side with radially double-rotor machine and the diameter of axle to the torque adjustment motor in housing 4, described radially 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, the described diameter of axle comprises second stator 11 and second p-m rotor 12 to the torque adjustment motor, modulation rotor output shaft 9 is simultaneously as the armature spindle of the diameter of axle to the torque adjustment motor

The described diameter of axle is fixed on the madial wall of housing 4 to second stator 11 of torque adjustment motor, 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, air gap L4 is in axial direction arranged;

Second stator 11 by the second stator core 11-1 and m ' mutually the second stator winding 11-2 constitute, the second stator core 11-1 is an annular, the outer ring surface of the second stator core 11-1 is fixed on the madial wall of housing 4, the lateral wall of the second stator core 11-1 has a plurality of annular grooves, described a plurality of annular groove is that the center evenly distributes with modulation rotor output shaft 9, the second stator winding 11-2 embeds respectively and forms m ' phase winding in the described annular groove, and m ' is a positive integer;

Second p-m rotor is made of second p-m rotor 12-2 unshakable in one's determination and many group permanent magnet units, second p-m rotor 12-2 unshakable in one's determination is a thick disk shape, be fixed on the modulation rotor output shaft 9, have toroidal cavity on the excircle sidewall of second p-m rotor 12-2 unshakable in one's determination, the radial section of groove is square, described groove medial surface is provided with many group second permanent magnet units, every group of permanent magnet unit is made of bottom surface permanent magnet 12-1 and two side permanent magnet 12-3, many group second permanent magnet units are that the center along the circumferential direction evenly distributes with modulation rotor output shaft 9, permanent magnet unit is arranged on the second p-m rotor 12-2 unshakable in one's determination surface or embeds in the second p-m rotor 12-2 unshakable in one's determination surface, every group of permanent magnet unit forms and points to slot opening or deviate from the magnetic field of slot opening, the magnetizing direction of two adjacent groups permanent magnet unit is opposite

Bottom surface permanent magnet 12-1 radially magnetizes or parallel magnetization radially, side permanent magnet 12-3 axial charging, and the magnetizing direction of two side permanent magnet 12-3 in the permanent magnet unit is opposite on the same group.

First stator 5 of described radially double-rotor machine is fixed on the madial wall of housing 4, first p-m rotor 7 is fixed on the p-m rotor output shaft 1, modulation rotor 6 is between first stator 5 and first p-m rotor 7, p-m rotor output shaft 1 is rotationally connected by clutch shaft bearing 2 and housing 4, and p-m rotor output shaft 1 is rotationally connected with modulation rotor 6 by second bearing 3 and the 4th bearing 10, one end of modulation rotor output shaft 9 is fixed on the modulation rotor 6, and modulation rotor output shaft 9 is rotationally connected with housing 4 by the 3rd bearing 8; 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 stator 5 by the first stator core 5-2 and m mutually the first stator winding 5-1 constitute, when the 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;

The first stator core 5-2 is an annular, and its internal circular surfaces has a plurality of grooves vertically, and the open centre line of described a plurality of grooves evenly distributes around p-m rotor output shaft 1, and the first stator winding 5-1 embeds respectively and forms the m phase winding in the described groove.

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 7-1,2n the first permanent magnet unit 7-1 is along the circumferential direction evenly arranged evenly, the individual first permanent magnet unit 7-1 of 2n embeds first p-m rotor 7-2 unshakable in one's determination inside or is fixed on the outer round surface of first p-m rotor 7-2 unshakable in one's determination, 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 Surface field of 2n number of poles, n is a positive integer;

Modulation rotor 6 is made of rotor field spider 6-3, q piece magnetic inductive block 6-1 and q piece collets 6-2, rotor field spider 6-3 outer round surface along the circumferential direction be crisscross arranged magnetic inductive block 6-1 and collets 6-2; Magnetic inductive block 6-1 selects soft-magnetic composite material, silicon steel sheet, solid-iron or soft magnetic ferrite for use;

And satisfy the p=|hn+kq| formula and set up, wherein, h is a positive odd number, and k is an integer.

For operation principle of the present invention is described, present embodiment is that example describes with structure shown in Figure 1, for the ease of the details of the each several part that draws, first p-m rotor 7 shown in Figure 1 and modulation rotor 6 have all been done the reduce in scale processing, concrete schematic diagram is referring to Figure 21.

Radially-and the diameter of axle is divided into two parts to magnetic field modulation type brushless composite structure motor from attainable function: a part is a double-rotor machine radially; Another part is that the diameter of axle is to the torque adjustment motor.Radially the function that mainly realizes of double-rotor machine is to make the rotating speed of modulation 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.The diameter of axle is needs according to actual loading to the effect of torque adjustment motor, 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 labor is the operation principle of double-rotor machine radially once:

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

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 formula:

${\mathrm{\Ω}}_2=\frac{\mathrm{hn}}{|\mathrm{hn}+\mathrm{kq}|}{\mathrm{\Ω}}_1+\frac{\mathrm{kq}}{|\mathrm{hn}+\mathrm{kq}|}{\mathrm{\Ω}}_3---\left(1\right)$

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 formula to set up:

${\mathrm{\Ω}}_2=\frac{\mathrm{hn}}{|\mathrm{hn}+\mathrm{kq}|}{\mathrm{\Ω}}_1---\left(2\right)$

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 formula 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 formula (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 formula to set up:

${\mathrm{\Ω}}_3=\frac{-\mathrm{hn}}{\mathrm{kq}}{\mathrm{\Ω}}_1---\left(3\right)$

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 formula 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 formula (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 formula (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, radially 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 once the diameter of axle to the operation principle of torque adjustment motor:

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 double-rotor machine radially 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 the diameter of axle to the torque adjustment machine operation at the dynamic brake state, this moment, the diameter of axle acted on the modulation rotor output shaft 9 to torque adjustment motor generation brake torque, therefore, the torque that has guaranteed 9 input and output of modulation rotor output shaft balances each other.At this moment, radially the energy part that is input on the modulation rotor output shaft 9 of double-rotor machine is used for driving load, another part be used for driving shaft radially the torque adjustment motor make its generating, thereby make 9 input and output of modulation rotor output shaft can amount phase equilibrium.

When double-rotor machine radially 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 the diameter of axle to the torque adjustment machine operation at the motorized motions state, this moment, the diameter of axle acted on the modulation rotor output shaft 9 to torque adjustment motor generation driving torque, 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 radially, and double-rotor machine is input to the energy of modulating on the rotor output shaft 9, another part derives from the energy of the diameter of axle to the input of torque adjustment motor, thereby makes the energy amount phase equilibrium of modulation rotor output shaft 9 input and output.

When double-rotor machine radially is input to torque on the modulation rotor output shaft 9 when torque that load needs equates, the diameter of axle is not worked to the torque adjustment motor at this moment.At this moment, the energy that drives load all derives from double-rotor machine radially and is input to energy on the modulation rotor output shaft 9, thus make the input and output of modulation rotor output shaft can amount phase equilibrium.

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 first permanent magnet unit 7-1 is arranged on the outer round surface of first p-m rotor 7-2 unshakable in one's determination, the first permanent magnet unit 7-1 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 first permanent magnet unit 7-1 embeds in the outer round surface that is arranged on first p-m rotor 7-2 unshakable in one's determination, the first permanent magnet unit 7-1 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 first permanent magnet unit 7-1 is a rectangle, 2n the first permanent magnet unit 7-1 is that the center distributes at the inner radiation shape of first p-m rotor 7-2 unshakable in one's determination with p-m rotor output shaft 1, the magnetizing direction of the first permanent magnet unit 7-1 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 first permanent magnet unit 7-1 is a rectangle, 2n the first permanent magnet unit 7-1 is that the center is uniform in the inside of first p-m rotor 7-2 unshakable in one's determination with p-m rotor output shaft 1, the angle of every adjacent two first permanent magnet unit 7-1 is 360 °/2n, the magnetizing direction of the first permanent magnet unit 7-1 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, each first permanent magnet unit 7-1 is that first permanent magnet of rectangle constitutes V font structure by two cross sections, 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, the first permanent magnet unit 7-1 of 2n V font is the inside that the center is distributed on first p-m rotor 7-2 unshakable in one's determination with p-m rotor output shaft 1, 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 (9)

1. radially-diameter of axle is to magnetic field modulation type brushless composite structure motor, it is characterized in that, in housing (4), be set side by side with radially double-rotor machine and the diameter of axle to the torque adjustment motor, described radially 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), the described diameter of axle comprises second stator (11) and second p-m rotor (12) to the torque adjustment motor, modulation rotor output shaft (9) is simultaneously as the armature spindle of the diameter of axle to the torque adjustment motor

The described diameter of axle is fixed on the madial wall of housing (4) to second stator (11) of torque adjustment motor, 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, air gap (L4) is in axial direction arranged;

First stator (5) of described radially double-rotor machine is fixed on the madial wall of housing (4), first p-m rotor (7) is fixed on the p-m rotor output shaft (1), modulation rotor (6) is positioned between first stator (5) and first p-m rotor (7), p-m rotor output shaft (1) is rotationally connected by clutch shaft bearing (2) and housing (4), and p-m rotor output shaft (1) is rotationally connected with modulation rotor (6) by second bearing (3) and the 4th bearing (10), 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 3rd bearing (8) and 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), 2n first permanent magnet unit (7-1) is along the circumferential direction evenly arranged evenly, individual first permanent magnet unit (7-1) of 2n embeds the first p-m rotor iron core (7-2) inside or is fixed on the outer round surface of the first p-m rotor iron core (7-2), 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 Surface field of 2n number of poles, n is a positive integer;

Modulation rotor (6) is by rotor field spider (6-3), q piece magnetic inductive block (6-1) and q piece collets (6-2) formation, rotor field spider (6-3) outer round surface along the circumferential direction be crisscross arranged magnetic inductive block (6-1) and collets (6-2);

And satisfy the p=|hn+kq| formula and set up, wherein, h is a positive odd number, and k is an integer.

2. radially according to claim 1-diameter of axle is to magnetic field modulation type brushless composite structure motor, it is characterized in that, first permanent magnet unit (7-1) is arranged on the outer round surface of the first p-m rotor iron core (7-2), and first permanent magnet unit (7-1) radially magnetizes.

3. radially according to claim 1-diameter of axle is to magnetic field modulation type brushless composite structure motor, it is characterized in that, first permanent magnet unit (7-1) embeds and is arranged in the outer round surface of the first p-m rotor iron core (7-2), and first permanent magnet unit (7-1) radially magnetizes.

4. radially according to claim 1-diameter of axle is to magnetic field modulation type brushless composite structure motor, it is characterized in that, the permanent magnet that each first permanent magnet unit (7-1) 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, first permanent magnet unit (7-1) of 2n V font is the inside that the center is distributed on the first p-m rotor iron core (7-2) with p-m rotor output shaft (1), and the opening of V font is opening outwardly radially.

5. radially according to claim 1-diameter of axle is to magnetic field modulation type brushless composite structure motor, it is characterized in that, first stator core (5-2) 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 p-m rotor output shaft (1), and first stator winding (5-1) embeds respectively and forms the m phase winding in the described groove.

6. radially according to claim 1-diameter of axle is characterized in that to magnetic field modulation type brushless composite structure motor magnetic inductive block (6-1) is selected soft-magnetic composite material for use.

7. radially according to claim 1-diameter of axle is characterized in that to magnetic field modulation type brushless composite structure motor magnetic inductive block (6-1) is selected silicon steel sheet, solid-iron or soft magnetic ferrite for use.

8. radially according to claim 1-diameter of axle is to 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, the outer ring surface of second stator core (11-1) is fixed on the madial wall of housing (4), the lateral wall of second stator core (11-1) has a plurality of annular grooves, described a plurality of annular groove is that the center evenly distributes with modulation rotor output shaft (9), second stator winding (11-2) embeds respectively and forms m ' phase winding in the described annular groove, and m ' is a positive integer.

9. radially according to claim 1-diameter of axle is to magnetic field modulation type brushless composite structure motor, it is characterized in that, second p-m rotor is made of the second p-m rotor iron core (12-2) and many group permanent magnet units, the second p-m rotor iron core (12-2) is a thick disk shape, be fixed on the modulation rotor output shaft (9), have toroidal cavity on the excircle sidewall of the second p-m rotor iron core (12-2), the radial section of groove is square, described groove medial surface is provided with many group second permanent magnet units, every group of permanent magnet unit is made of bottom surface permanent magnet (12-1) and two side permanent magnets (12-3), many group second permanent magnet units are that the center along the circumferential direction evenly distributes with modulation rotor output shaft (9), permanent magnet unit is arranged on second p-m rotor iron core (12-2) surface or embeds in second p-m rotor iron core (12-2) surface, every group of permanent magnet unit forms and points to slot opening or deviate from the magnetic field of slot opening, the magnetizing direction of two adjacent groups permanent magnet unit is opposite

Bottom surface permanent magnet (12-1) radially magnetizes, side permanent magnet (12-3) axial charging, and the magnetizing direction of the two side permanent magnets (12-3) in the permanent magnet unit is opposite on the same group.

Images