CN102136788A - Speed changing device - Google Patents
Speed changing device Download PDFInfo
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- CN102136788A CN102136788A CN2010101043769A CN201010104376A CN102136788A CN 102136788 A CN102136788 A CN 102136788A CN 2010101043769 A CN2010101043769 A CN 2010101043769A CN 201010104376 A CN201010104376 A CN 201010104376A CN 102136788 A CN102136788 A CN 102136788A
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Abstract
The invention discloses a speed changing device. A rotor and a stator do relative movement in a magnetic field or a rotor and a stator do relative movement in a magnetic field, or two rotors do relative movement in a magnetic field, and a speed changing plate provided by the invention can be combined, thus the aim of regulating the rotating speed and output torque is achieved.
Description
Technical field
The present invention relates to a kind of speed change gear, especially relate to and a kind ofly in a magnetic field, do relative motion by a rotor and a stator, perhaps, in a magnetic field, do relative motion by a low speed rotor and a high speed rotor, it can cooperate a speed changer, reach the purpose of modulation rotating speed and outputting torsion, and, cooperate the speed change dish of a particular design can reach the purpose of multistage modulation rotating speed and outputting torsion.
Background technology
Based on taking off of electric motor car industry, the part of electric motor car power becomes important field of research, and under the special drive pattern of electric motor car, raising the efficiency and drive torsion density is primary affair.Electro-motor need cooperate different driving torsion demand and travel speed, in order to keep the high efficiency running, technology commonly used at present is the collocation of motor and speed changer, or the collocation of motor and decelerator, therefore but comprise mechanical transmission, increased weight, the problem of also efficient in addition, wearing and tearing and noise, though utilize general magnetic speed changer can reduce vibration, noise, can not reduce weight.
" Test and Simulation of Axial Flux-Motor Characteristics for HybridElectric Vehicles ", IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, VOL.53, NO.3, MAY 2004 discloses two kinds of typical motors, shown in Figure 1A and Figure 1B.Figure 1A is a radial motor, and it comprises a stator 11a and a mover 12a, and wherein the magnetic flux between this stator 11a and this mover 12a is along vertical in the radial direction with the AA axle.Figure 1B is an axial motor, and it comprises a stator 11b and a mover 12b, and wherein the magnetic flux between this stator 11b and this mover 12b is on the axial direction parallel with the BB axle.Compare with radial motor, the framework of axial motor is fit to the motor slimming, and close the position of its stator and rotor is axial distribution.Thin motor can be saved the space, but motor itself can't speed change, need add a speed changer to change its torsion output.
" A novel high performance magnetic gear ", IEEE Transactions onMagnetics, 2001 disclose a kind of footpath magnetropism speed changer, and as shown in Figure 2, it is the cross-sectional view of this footpath magnetropism speed changer.This footpath magnetropism speed changer can reach 5.5: 1 speed changing effect, and it comprises:
One the first rotor 21, it also comprises:
One first soft iron core 211, it is a hollow cylindrical;
A plurality of first magnetic are to 212, and each magnetic also comprises 212:
The N utmost point 212a of a permanent magnet; And
The S utmost point 212b of a permanent magnet;
One second rotor 22, it can relatively rotate with this first rotor 21, and this second rotor 22 also comprises:
One second soft iron core 221, it is a hollow cylindrical, with this first soft iron core 211 common axle center is arranged;
A plurality of second magnetic are to 222, and each magnetic also comprises 222:
The N utmost point 222a of a permanent magnet; And
The S utmost point 222b of a permanent magnet; And
A plurality of strip permeability magnetic materials 23 are arranged between this first rotor 21 and second rotor 22 itself and axis parallel.
In the example of this prior art, this first rotor 21 has 22 first magnetic to 212, and this second rotor 22 has 4 second magnetic to 222, and, be high speed rotor with the first rotor 21, and be the low speed rotor with second rotor 22.These a plurality of strip permeability magnetic materials 23 are used for magnetic conduction, in this example 26 strip permeability magnetic materials 23 are set altogether, and the air gap of being separated by between the wantonly two strip permeability magnetic materials is a soft iron core at this permeability magnetic material.Strip permeability magnetic material reciprocation between the magnetic field that one epitrochanterian permanent magnet produces and two rotors can produce space magnetic flux (space harmonic flux), the effect of this space magnetic flux is equivalent to form the space magnetic flux of different numbers of poles between the space, and then drive another rotor rotation synchronously, and reach the purpose of modulation rotating speed and outputting torsion.
The formed speed changing effect of space magnetic flux, can calculate by following formula:
Wherein, G is a gear ratio, and m, k are resonance (harmonics) progression of space resonance magnetic flux (space harmonic flux), and p is the magnetic logarithm of rotor, and n is a strip permeability magnetic material number.When fundamental resonance (fundamental harmonics), promptly m=-k=1 brings formula (1) with p=4 into n=26, can obtain: the gear ratio of G=4/22=1/5.5.
Summary of the invention
The invention provides a kind of speed change gear, it comprises:
One first inductor, it can produce magnetic flux;
One second inductor, it can produce magnetic flux, is provided with abreast with this first inductor, and can does relative motion with respect to this first inductor;
One magnetic conductive component, it comprises a plurality of strip permeability magnetic materials, the air gap of being separated by between those strip permeability magnetic materials, and be provided with abreast with this first inductor and this second inductor.
Description of drawings
Figure 1A is a kind of radial motor configuration diagram of prior art;
Figure 1B is a kind of axial motor configuration diagram of prior art;
Fig. 2 is the cross-sectional view of a kind of footpath magnetropism speed changer of prior art;
Fig. 3 A is the cross-sectional view of first embodiment of speed change gear of the present invention;
Fig. 3 B shows that speed that two movers of first embodiment of speed change gear of the present invention can different sizes are at the equidirectional moving linearly;
Two movers of first embodiment of Fig. 3 C demonstration speed change gear of the present invention are moving linearly in the opposite direction;
Fig. 4 is the cross-sectional view of second embodiment of speed change gear of the present invention;
Fig. 5 A is the structure schematic side view of the 3rd embodiment of speed change gear of the present invention;
The schematic top plan view of three main elements in the decomposition texture of the 3rd embodiment of Fig. 5 B demonstration speed change gear of the present invention;
Fig. 6 is the structure schematic side view of the 4th embodiment of speed change gear of the present invention;
Fig. 7 shows that the present invention is applied to an example structure schematic diagram of the magnetic conductive component of multi-stage transmission device;
Fig. 8 A and Fig. 8 B show that the present invention is applied to another example structure schematic diagram of the magnetic conductive component of multi-stage transmission device;
Fig. 8 C and Fig. 8 D show the equivalent speed change dish with the magnetic conductive component of the superimposed up and down back of second annulus gained of first annulus of Fig. 8 A and Fig. 8 B;
The structural representation of the speed change gear of Fig. 8 E display application magnetic conductive component provided by the present invention.
The main element symbol description
11a, 11b-stator
12a, 12b-mover
The 21-the first rotor
211-first soft iron core
212-first magnetic is right
The N utmost point of 212a-permanent magnet
The S utmost point of 212b-permanent magnet
22-second rotor
221-second soft iron core
222-second magnetic is right
The N utmost point of 222a-permanent magnet
The S utmost point of 222b-permanent magnet
23-strip permeability magnetic material
31-first mover
311-first permeability magnetic material
312-first magnetic is right
The N utmost point of 312a-permanent magnet
The S utmost point of 312b-permanent magnet
32-second mover
321-second permeability magnetic material
322-second magnetic is right
The N utmost point of 322a-permanent magnet
The S utmost point of 322b-permanent magnet
The 33-magnetic conductive component
331-strip permeability magnetic material
The 41-stator
The 42-mover
The 421-permeability magnetic material
422-magnetic is right
The N utmost point of 422a-permanent magnet
The S utmost point of 422b-permanent magnet
The 43-magnetic conductive component
431-strip permeability magnetic material
The 51-the first rotor
511-first permeability magnetic material
512-first magnetic is right
The N utmost point of 512a-permanent magnet
The S utmost point of 512b-permanent magnet
52-second rotor
521-second permeability magnetic material
522-second magnetic is right
The N utmost point of 522a-permanent magnet
The S utmost point of 522b-permanent magnet
53-speed change dish
The 531-air gap
The 61-stator
The 62-rotor
The 621-permeability magnetic material
622-magnetic is right
The N utmost point of 622a-permanent magnet
The S utmost point of 622b-permanent magnet
63-speed change dish
The 71-magnetic conductive component
The 711-first speed change dish
The 7111-air gap
The 712-second speed change dish
The 7121-air gap
81-first annulus
The 811-permeability magnetic material
The 812-air gap
82-second annulus
The 821-permeability magnetic material
The 822-air gap
82a, 82b-speed change dish
The 83-stator
The 84-rotor
The 841-permeability magnetic material
842-magnetic is right
The N utmost point of 842a-permanent magnet
The S utmost point of 842b-permanent magnet
Embodiment
For making your juror further cognitive and understanding be arranged to feature of the present invention, purpose and function, hereinafter the spy describes the relevant thin bilge construction of device of the present invention and the theory reason of design, so that the juror can understand characteristics of the present invention, detailed description is presented below:
The invention provides a kind of speed change gear, it comprises:
One first inductor, it can produce magnetic flux;
One second inductor, it can produce magnetic flux, is provided with abreast with this first inductor, and can does relative motion with respect to this first inductor; And
One magnetic conductive component, it comprises a plurality of strip permeability magnetic materials, the air gap of being separated by between those strip permeability magnetic materials, and be arranged at abreast between this first inductor and this second inductor.
The various embodiment of following conjunction with figs. explanation speed change gear of the present invention:
Fig. 3 A is the cross-sectional view of first embodiment of speed change gear of the present invention.Speed change gear in the present embodiment, it comprises:
One first inductor, it is one first mover 31, this first mover 31 more comprises:
One first permeability magnetic material 311, it is a cuboid; And
A plurality of first magnetic are fixed in a surface of this first permeability magnetic material 311 parallel to each other to 312, and each first magnetic more comprises 312:
The N utmost point 312a of a permanent magnet; And
The S utmost point 312b of a permanent magnet;
One second inductor, it is one second mover 32, and this second mover 32 can be done the straight line relative motion with this first mover 31, and this second mover 32 more comprises:
One second permeability magnetic material 321, it is a cuboid, and parallel with this first permeability magnetic material 311; And
A plurality of second magnetic are fixed in a surface of this second permeability magnetic material 321 parallel to each other to 322, and each second magnetic is all parallel to 312 with each first magnetic to 322, and each second magnetic more comprises 322:
The N utmost point 322a of a permanent magnet; And
The S utmost point 322b of a permanent magnet; And
One magnetic conductive component 33, it comprises a plurality of strip permeability magnetic materials 331, the air gap of being separated by between those strip permeability magnetic materials 331, this magnetic conductive component 33 is arranged between this first mover 31 and second mover 32 parallel to each other, and each strip permeability magnetic material 331 all with each first magnetic to 312 and each second magnetic parallel to 322.
Present embodiment can be regarded as columniform footpath magnetropism speed changer among above-mentioned Fig. 2 is directly cut along half, then two rotors all is launched into a plane speed change gear of two hole gained of cuboid shape.This for example can this first mover 31 as the high speed mover, can import a mechanical energy and drive its moving linearly, magnetic force reciprocation via the space magnetic flux in the air gap of 331 of a plurality of strip permeability magnetic materials, drive is externally exported a mechanical energy as second mover, 32 moving linearlies of low speed mover, and therefore reaches the purpose of modulation speed and vigor.
Fig. 3 B shows that two movers of present embodiment can different big or small speed V
1With V
2At the equidirectional moving linearly.Fig. 3 C shows that two movers of present embodiment also can be in the opposite direction with speed V moving linearly.Wherein the length of these two movers can be the same or different.
Fig. 4 is the cross-sectional view of second embodiment of speed change gear of the present invention.Speed change gear in the present embodiment, it comprises:
One first inductor, it is a stator 41, this stator 41 comprises the coil of a heterogeneous coiling at least;
One second inductor, it is a mover 42, and this mover 42 can be done relative motion with respect to this stator 41, and this mover 42 more comprises:
One permeability magnetic material 421, it is a cuboid; And
A plurality of magnetic be fixed in a surface of this permeability magnetic material 421 parallel to each other, and each magnetic comprise more to 422 to 422:
The N utmost point 422a of a permanent magnet; And
The S utmost point 422b of a permanent magnet; And
One magnetic conductive component 43, it comprises a plurality of strip permeability magnetic materials 431, the air gap of being separated by between those strip permeability magnetic materials 431, this magnetic conductive component 43 is arranged between this stator 41 and this mover 42 parallel to each other, and each strip permeability magnetic material 431 is all parallel to 422 with each magnetic.
Present embodiment can be regarded as one of them mover among above-mentioned first embodiment, high speed mover for example, replace with stator 41, one electric energy is imported this stator that contains coil 41 can produce space magnetic flux with the same magnetic logarithm of high speed mover, and utilize heterogeneous coiling to obtain the effect of space magnetic flux translation, therefore can drive mover 42 moving linearlies and export a mechanical energy, wherein, the output of the speed and vigor of this mover 42 can be with the speed change of similar above-mentioned formula (1) modulation recently.
About structure, winding mode and the distribution layout of the stator that contains heterogeneous coiled wire-wound coil, exposure is arranged in that background technology more, do not repeat them here (following also with).
Fig. 5 A is the structure schematic side view of the 3rd embodiment of speed change gear of the present invention.The schematic top plan view of three main elements in the decomposition texture of the 3rd embodiment of Fig. 5 B demonstration speed change gear of the present invention.Speed change gear in the present embodiment, it comprises:
One first inductor, it is a first rotor 51, this first rotor 51 more comprises:
One first permeability magnetic material 511, it is the annulus body; And
A plurality of first magnetic are to 512, and each first magnetic is to 512 all along a surface of radially being fixed in this first permeability magnetic material 511, and each first magnetic more comprises 512:
The N utmost point 512a of a permanent magnet; And
The S utmost point 512b of a permanent magnet;
One second inductor, it is one second rotor 52, and this second rotor 52 can relatively rotate with respect to this first rotor 51, and this second rotor 52 more comprises:
One second permeability magnetic material 521, it is the annulus body, and be arranged in parallel with this first permeability magnetic material 511; And
A plurality of second magnetic are to 522, and each second magnetic is to 522 all along a surface of radially being fixed in this second permeability magnetic material 521, and each second magnetic more comprises 522:
The N utmost point 522a of a permanent magnet; And
The S utmost point 522b of a permanent magnet; And
One magnetic conductive component, it is a speed change dish 53, this speed change dish 53 is arranged at the annular permeability magnetic material between this first rotor 51 and second rotor 52 abreast, and this speed change dish 53 is provided with a plurality of air gaps 531 along radially direction.
Present embodiment is equivalent to first mover 31, second mover 32 of first embodiment and magnetic conductive component 33 with a plurality of strip permeability magnetic materials 331 are made cirque structure, be provided with then with being arranged in parallel, the circular arrangement of wherein a plurality of strip permeability magnetic materials 331 radially with each strip permeability magnetic material along radially being provided with, shown in Fig. 5 B, then be made into the structure of a speed change dish 53 at present embodiment, make and use with convenient.Two rotors of present embodiment are the axially parallel settings, and its flow direction is axially, are fit to very much the application in slim space.The first rotor 51 inputs one mechanical energy is driven it to rotate, magnetic force reciprocation via the space magnetic flux in the air gap 531 of speed change dish 53, drive rotates as second rotor 52 and externally exports a mechanical energy, and therefore reaches the purpose of modulation rotating speed and torsion.
Fig. 6 is the structure schematic side view of the 4th embodiment of speed change gear of the present invention.Speed change gear in the present embodiment, it comprises:
One first inductor, it is a stator 61, this stator 61 is annulus body and the coil that comprises a heterogeneous coiling at least;
One second inductor, it is a rotor 62, and this rotor 62 can relatively rotate with respect to this stator 61, and this rotor 62 more comprises:
One permeability magnetic material 621, it is the annulus body, and be arranged in parallel with this stator 61; And
A plurality of magnetic are to 622, and each magnetic is to 622 all along a surface of radially being fixed in this permeability magnetic material 621, and each magnetic more comprises 622:
The N utmost point 622a of a permanent magnet; And
The S utmost point 622b of a permanent magnet; And
One magnetic conductive component, it is a speed change dish 63, this speed change dish 63 is arranged at the annular permeability magnetic material between this stator 61 and the rotor 62 abreast, and this speed change dish 63 is provided with a plurality of air gaps (having identical structure with the speed change dish 53 among Fig. 5 B) along radially direction.
Present embodiment is equivalent to one of them rotor among above-mentioned the 3rd embodiment, replace with stator 61, one electric energy is imported this stator that contains coil 61 can produce space magnetic flux with the same magnetic logarithm of rotor, and utilize heterogeneous coiling to obtain the effect of space magnetic flux translation, therefore can drive rotor 62 and rotate and export a mechanical energy, therefore reach the purpose of modulation rotating speed and torsion.
By formula (1) as can be known, gear ratio is decided by the number of magnetic poles on the inductor, and wants the cooperation of two strip permeability magnetic material numbers between inductor.When the number of poles of inductor changes, if can cooperate the number (the perhaps number of air gap) that changes the strip permeability magnetic material simultaneously, then gear ratio also can change, for example: if an inductor magnetic logarithm p has become 8 by 4 in the formula (1), and another inductor magnetic logarithm constant (promptly keeping 22), so strip permeability magnetic material number need become 30, and bringing formula (1) into, can to obtain new gear ratio be 8/22=1/2.75 (being originally 1/5.5).This promptly so-called " multistage speed change ".
Because it is right to use permanent magnet generation magnetic pole to form magnetic on the rotor, so the magnetic logarithm of rotor is malleable not, in order to make speed change gear can change gear ratio with axial magnetic flux, reach the purpose of multistage speed change, the technological means that the present invention proposes is: the magnetic logarithm of (1) stator is variable, and the air gap number of (2) speed change dish is also variable.About the change method of the magnetic logarithm of stator, can be with reference to documents such as background technologies.With the changeable magnetic conductive component of next detailed description air gap number provided by the present invention:
Fig. 7 shows an example structure schematic diagram that is applied to the magnetic conductive component of multi-stage transmission device provided by the present invention.As shown in the figure, this magnetic conductive component 71 includes the speed change dish of a plurality of annular permeability magnetic materials, and those speed change dishes are provided with the air gap of different numbers along direction radially.Magnetic conductive component 71 at Fig. 7 has only two speed change dishes, and one is the first speed change dish 711, and another is the second speed change dish 712, but magnetic conductive component of the present invention is not as limit.Wherein, be provided with to these first speed change dish, 711 radial arrangement 24 air gaps 7111, be provided with to these second speed change dish, 712 radial arrangement 32 air gaps 7121.
On using, this magnetic conductive component 71 can rotate with a driver (actuator), required speed change dish is placed between two rotors of a speed change gear and (become the structure of the 3rd embodiment, see also Fig. 5 A), perhaps required speed change dish is placed between a rotor of a speed change gear and the stator and (become the structure of the 4th embodiment, see also Fig. 6), the air gap number that changes the speed change dish is thus adjusted gear ratio, reaches the purpose of multistage speed change.
Following table one is the combination list of magnetic conductive component 71 of the present invention according to two sections speed changes of the speed change gear of formula (1) collocation one rotor and a stator gained.Wherein the magnetic logarithm of this rotor is fixed as 20, this stator comprise four mutually the coils of coiling can do the switching (changing method of the structure of this stator and magnetic logarithm please refer to documents such as background technology) of 4 magnetic logarithms and 12 magnetic logarithms.When stator magnet logarithm, speed change dish air gap number, rotor magnetic logarithm are 4,24,20 combination, can obtain 1: 5 gear ratio according to formula (1), when stator magnet logarithm, speed change dish air gap number, rotor magnetic logarithm are 12,32,20 combination, can obtain 1: 1.6 gear ratio according to formula (1).So speed change gear that can obtain having two sections speed changes.
| m＝-k＝1 | Gear ratio=1: 5 | Gear ratio=1: 1.6 |
| The stator magnet logarithm | 4 | 12 |
| Speed change dish air gap number | 24 | 32 |
| Rotor magnetic logarithm | 20 | 20 |
Table one
Fig. 8 A, Fig. 8 B show another example structure schematic diagram that is applied to the magnetic conductive component of multi-stage transmission device provided by the present invention, and wherein Fig. 8 A is depicted as one first annulus 81, and Fig. 8 B is depicted as one second annulus 82.
This first annulus 81 includes the strip permeability magnetic material 811 of a plurality of radial arrangement and the air gap 812 of similar number, the circumference of this first annulus 81 is divided into the circular arc (i.e. eight cycles) of eight five equilibriums, each circular arc all has identical permeability magnetic material and air gap configuration structure, DE circular arc shown in Fig. 8 A, wherein DD
1Circular arc, D
2D
3Circular arc, D
4D
5Circular arc is an air gap, D
1D
2Circular arc, D
3D
4Circular arc, D
5The E circular arc is a permeability magnetic material, and, DD
1Circular arc, D
1D
2Circular arc, D
2D
3Circular arc, D
3D
4Circular arc, D
4D
5Circular arc, D
5The pairing central angle of E circular arc is in regular turn: 4 angular units, 2 angular units, 9 angular units, 1 angular unit, 5 angular units, 3 angular units, one of them angular unit equal 1.875 degree.
This second annulus 82 includes the strip permeability magnetic material 821 of a plurality of radial arrangement and the air gap 822 of similar number, the circumference of this second annulus 82 is divided into the circular arc (i.e. eight cycles) of eight five equilibriums, each circular arc all has identical permeability magnetic material and air gap configuration structure, FG circular arc shown in Fig. 8 B, wherein FF
1Circular arc, F
2F
3Circular arc, F
4F
5Circular arc, F
6The G circular arc is air gap FF
2Circular arc, F
3F
4Circular arc, F
5F
6Circular arc is a permeability magnetic material, and, FF
1Circular arc, F
1F
2Circular arc, F
2F
3Circular arc, F
3F
4Circular arc, F
4F
5Circular arc, F
5F
6Circular arc, F
6The pairing central angle of G circular arc is in regular turn: 3 angular units, 2 angular units, 4 angular units, 3 angular units, 4 angular units, 2 angular units, 6 angular units, one of them angular unit equal 1.875 degree.
Fig. 8 C and Fig. 8 D show the equivalent magnetic conductive component with a magnetic conductive component of the superimposed up and down back of second annulus gained of first annulus of Fig. 8 A and Fig. 8 B.When second annulus of first annulus 81 of Fig. 8 A and Fig. 8 B is superimposed about in the of 82, make the DE circular arc overlap (D overlaps with F, and E overlaps with G) with the FG circular arc, the equivalent magnetic conductive component of the magnetic conductive component of gained is the speed change dish 82a with 32 air gaps shown in Fig. 8 C.Second annulus 82 with above-mentioned magnetic conductive component counterclockwise rotates 3 angular units (perhaps with 3 angular units of first annulus, 81 clockwise directions rotation) then, make FD circular arc and GE circular arc all equal 3 angular units, the equivalent magnetic conductive component of the magnetic conductive component of gained is the speed change dish 82b with 24 air gaps shown in Fig. 8 D.Mode according to this, the air gap number that the magnetic conductive component that is applied to multi-stage transmission device provided by the present invention can change the speed change dish is adjusted gear ratio, reaches the purpose of multistage speed change, and its effect is equivalent to above-mentioned magnetic conductive component 71.
The angular unit of present embodiment can be done different designs on demand.The circular arc (being N cycle) that is divided into N five equilibrium when first annulus and second annulus, then an angular unit equals the 15/N degree, can obtain modulation between the different air gap numbers this moment, its modulating method identical during with above-mentioned N=8 (relative rotate 3 angular units).In addition, only for illustrating, but the present invention is not as limit at this for the pairing central angle of each circular arc on annulus number and each annulus.
The structural representation of the speed change gear of Fig. 8 E display application magnetic conductive component provided by the present invention.Speed change gear in the present embodiment, it comprises:
One first annulus 81, its circumference is divided into the circular arc in eight cycles, the circular arc in each cycle all more is divided into six circular arcs, the air gap of the air gap that these six circular arcs are 4 center of circle angular units in regular turn, the permeability magnetic material of 2 center of circle angular units, the air gap of 9 center of circle angular units, the permeability magnetic material of 1 center of circle angular unit, 5 center of circle angular units, the permeability magnetic material of 3 center of circle angular units, one of them center of circle angular unit equal 1.875 degree;
One second annulus 82, itself and the folded mutually magnetic conductive component that forms of this first annulus 81, the circumference of this second annulus 82 is divided into the circular arc in eight cycles, the circular arc in each cycle all more is divided into seven circular arcs, the permeability magnetic material of the air gap that these seven circular arcs are 3 center of circle angular units in regular turn, the permeability magnetic material of 2 center of circle angular units, the air gap of 4 center of circle angular units, the permeability magnetic material of 3 center of circle angular units, the air gap of 4 center of circle angular units, 2 center of circle angular units, the air gap of 6 center of circle angular units, one of them center of circle angular unit equal 1.875 degree;
One first inductor, it is a stator 83, this stator 83 is annulus body and the coil that comprises a heterogeneous coiling at least; And
One second inductor, it is a rotor 84, and this rotor 84 can relatively rotate with respect to this stator 83, and this magnetic conductive component is arranged between this rotor 84 and the stator 83, and parallel to each other, and this rotor 84 more comprises:
One permeability magnetic material 841, it is the annulus body;
A plurality of magnetic are to 842, and each magnetic is to 842 all along a surface of radially being fixed in this permeability magnetic material 841, and each magnetic more comprises 842:
The N utmost point 842a of a permanent magnet; And
The S utmost point 842b of a permanent magnet.
The magnetic conductive component of present embodiment can rotate one of them annulus with driver.When the position in each cycle of two annulus all in correspondence with each other, this moment, the equivalent magnetic conductive component of magnetic conductive component of gained was the speed change dish with 32 air gaps.When the position in each cycle of this second annulus 82 with respect to leading in the counterclockwise direction 3 center of circle angular units in the position in each cycle of this first annulus 81, this moment, the equivalent magnetic conductive component of magnetic conductive component of gained was the speed change dish with 24 air gaps.Therefore, when the magnetic logarithm of this rotor is fixed as 20, and this stator is when comprising four the coils of coiling can be done the switching of 4 magnetic logarithms and 12 magnetic logarithms mutually, and present embodiment also can obtain the effect of two sections speed changes of above-mentioned table one.
The center of circle angular unit of present embodiment can be done different designs on demand, when first annulus and second annulus are divided into N the cycle (being the circular arc of N five equilibrium), then a center of circle angular unit equals the 15/N degree, can obtain modulation between the different air gap numbers this moment, its modulating method identical during with above-mentioned N=8 (relative rotate 3 angular units).In addition, only for illustrating, but the present invention is not as limit at this for the pairing central angle of each circular arc on annulus number and each annulus.
More than the used permeability magnetic material of each embodiment, can select to use soft iron core.
Above-described only is embodiments of the invention, when can not with the restriction scope of the invention.Promptly the equalization of doing according to claim of the present invention generally changes and modifies, and will not lose main idea of the present invention place, does not also break away from the spirit and scope of the present invention, and the former capital should be considered as further enforcement situation of the present invention.
Claims (13)
1. the invention provides a kind of speed change gear, it comprises:
First inductor, it can produce magnetic flux;
Second inductor, it can produce magnetic flux, is provided with abreast with this first inductor, and can does relative motion with respect to this first inductor; And
Magnetic conductive component, it comprises a plurality of strip permeability magnetic materials, the air gap of being separated by between those strip permeability magnetic materials, and be arranged at abreast between this first inductor and this second inductor.
2. speed change gear as claimed in claim 1, wherein this first inductor is first mover, and this second inductor is second mover, this first mover also comprises:
First permeability magnetic material, it is a cuboid; And
A plurality of first magnetic are right, are fixed in a surface of this first permeability magnetic material parallel to each other, and each first magnetic is to also comprising:
The N utmost point of a permanent magnet; And
The S utmost point of a permanent magnet,
And this second mover can be done the straight line relative motion with this first mover, and this second mover also comprises:
Second permeability magnetic material, it is a cuboid, and be arranged in parallel with this first permeability magnetic material; And
A plurality of second magnetic are right, are fixed in a surface of this second permeability magnetic material parallel to each other, and each second magnetic to all with each first magnetic to parallel, and each second magnetic is to also comprising:
The N utmost point of a permanent magnet; And
The S utmost point of a permanent magnet.
3. speed change gear as claimed in claim 2, wherein each strip permeability magnetic material of this magnetic conductive component all with each first magnetic to and each second magnetic to parallel.
4. speed change gear as claimed in claim 1, wherein this first inductor is a stator, and this stator comprises the coil of a heterogeneous coiling at least, and this second inductor is mover, and this mover can be done relative motion with respect to this stator, and this mover also comprises:
Permeability magnetic material, it is a cuboid; And
A plurality of magnetic are right, be fixed in a surface of this permeability magnetic material parallel to each other, and each magnetic are to comprising also:
The N utmost point of a permanent magnet; And
The S utmost point of a permanent magnet.
5. speed change gear as claimed in claim 4, wherein each strip permeability magnetic material of this magnetic conductive component all with each magnetic to parallel.
6. speed change gear as claimed in claim 1, wherein this first inductor is a first rotor, and this second inductor is second rotor, this first rotor also comprises:
First permeability magnetic material, it is the annulus body; And
A plurality of first magnetic are right, and along a surface of radially being fixed in this first permeability magnetic material, and each first magnetic is to also comprising to all for each first magnetic:
The N utmost point of a permanent magnet; And
The S utmost point of a permanent magnet,
And this second rotor can relatively rotate with this first rotor, and this second rotor also comprises:
Second permeability magnetic material, it is the annulus body, and be arranged in parallel with this first permeability magnetic material; And
A plurality of second magnetic are right, and along a surface of radially being fixed in this second permeability magnetic material, and each second magnetic is to also comprising to all for each second magnetic:
The N utmost point of a permanent magnet; And
The S utmost point of a permanent magnet.
7. speed change gear as claimed in claim 1, wherein this first inductor is a stator, and this stator is annulus body and the coil that comprises a heterogeneous coiling at least, and this second inductor is a rotor, and this rotor can relatively rotate with respect to this stator, and this rotor also comprises:
Permeability magnetic material, it is the annulus body; And
A plurality of magnetic are right, and along a surface of radially being fixed in this permeability magnetic material, and each magnetic is to also comprising to all for each magnetic:
The N utmost point of a permanent magnet; And
The S utmost point of a permanent magnet.
8. as claim 6 or 7 described speed change gears, wherein this magnetic conductive component is the speed change dish, and it is the annular permeability magnetic material, and this speed change dish includes a plurality of air gaps, and those air gaps are provided with on the direction radially respectively and are radial arrangement.
9. speed change gear as claimed in claim 7, wherein this magnetic conductive component includes the speed change dish of a plurality of annular permeability magnetic materials, and each speed change dish includes a plurality of air gaps, and those air gaps are provided with on the direction radially respectively and are radial arrangement.
10. speed change gear as claimed in claim 7, wherein this magnetic conductive component also comprises:
The annulus that a plurality of permeability magnetic materials are made, each annulus is provided with a plurality of air gaps along direction radially, and those annulus are folded mutually abreast to form this magnetic conductive component, and can rotate mutually to change the gap sum that this magnetic conductive component does not contain permeability magnetic material.
11. speed change gear as claimed in claim 7, wherein this magnetic conductive component also comprises:
First annulus, its circumference is divided into the circular arc in N cycle, the circular arc in each cycle all more is divided into six circular arcs, the air gap of the air gap that these six circular arcs are 4 center of circle angular units in regular turn, the permeability magnetic material of 2 center of circle angular units, the air gap of 9 center of circle angular units, the permeability magnetic material of 1 center of circle angular unit, 5 center of circle angular units, the permeability magnetic material of 3 center of circle angular units, one of them center of circle angular unit equals the 15/N degree; And
Second annulus, itself and folded mutually this magnetic conductive component that forms of this first annulus, the circumference of this second annulus is divided into the circular arc in N cycle, the circular arc in each cycle all more is divided into seven circular arcs, the permeability magnetic material of the air gap that these seven circular arcs are 3 center of circle angular units in regular turn, the permeability magnetic material of 2 center of circle angular units, the air gap of 4 center of circle angular units, the permeability magnetic material of 3 center of circle angular units, the air gap of 4 center of circle angular units, 2 center of circle angular units, the air gap of 6 center of circle angular units, one of them center of circle angular unit equals the 15/N degree.
12. speed change gear as claimed in claim 11, wherein N equals 8.
13. as claim 9,10 or 11 described speed change gears, wherein this stator comprise four mutually the coils of coiling can do the switching of 4 magnetic logarithms and 12 magnetic logarithms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010104376 CN102136788B (en) | 2010-01-27 | 2010-01-27 | Speed changing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010104376 CN102136788B (en) | 2010-01-27 | 2010-01-27 | Speed changing device |
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| CN102136788A true CN102136788A (en) | 2011-07-27 |
| CN102136788B CN102136788B (en) | 2013-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010104376 Active CN102136788B (en) | 2010-01-27 | 2010-01-27 | Speed changing device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3463700B2 (en) * | 1994-05-11 | 2003-11-05 | 株式会社安川電機 | Magnetic coupling device |
| US20060081446A1 (en) * | 2004-10-15 | 2006-04-20 | Magnabelt Dynamics, Llc | Belt including a flexible rare earth magnetic strip and conveyor utilizing a belt including a flexible rare earth magnetic strip |
| CN2901684Y (en) * | 2005-10-12 | 2007-05-16 | 吉林大学 | Magnetic shield linear reciprocating driver |
| CN201142632Y (en) * | 2008-01-11 | 2008-10-29 | 东南大学 | Mixed field excitation transmission speed control device |
| WO2009087408A2 (en) * | 2008-01-11 | 2009-07-16 | Magnomatics Limited | Magnetic drive systems |
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2010
- 2010-01-27 CN CN 201010104376 patent/CN102136788B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3463700B2 (en) * | 1994-05-11 | 2003-11-05 | 株式会社安川電機 | Magnetic coupling device |
| US20060081446A1 (en) * | 2004-10-15 | 2006-04-20 | Magnabelt Dynamics, Llc | Belt including a flexible rare earth magnetic strip and conveyor utilizing a belt including a flexible rare earth magnetic strip |
| CN2901684Y (en) * | 2005-10-12 | 2007-05-16 | 吉林大学 | Magnetic shield linear reciprocating driver |
| CN201142632Y (en) * | 2008-01-11 | 2008-10-29 | 东南大学 | Mixed field excitation transmission speed control device |
| WO2009087408A2 (en) * | 2008-01-11 | 2009-07-16 | Magnomatics Limited | Magnetic drive systems |
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| K. ATALLAH等: "A Novel High-Performance Magnetic Gear", 《IEEE TRANSACTIONS ON MAGNETICS》 * |
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| CN102136788B (en) | 2013-04-10 |
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