CN104167896A - T-type flux-switching permanent magnet linear motor and modules of T-type flux-switching permanent magnet linear motor - Google Patents
T-type flux-switching permanent magnet linear motor and modules of T-type flux-switching permanent magnet linear motor Download PDFInfo
- Publication number
- CN104167896A CN104167896A CN201410387913.3A CN201410387913A CN104167896A CN 104167896 A CN104167896 A CN 104167896A CN 201410387913 A CN201410387913 A CN 201410387913A CN 104167896 A CN104167896 A CN 104167896A
- Authority
- CN
- China
- Prior art keywords
- module
- linear motor
- relative displacement
- phase
- permanent magnet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention discloses a module-complementary-type flux-switching permanent magnet linear motor which comprises a primary part and a secondary part. The primary part and the secondary part are of convex electrode structures. An air gap is reserved between the primary part and the secondary part. The primary part comprises primary iron cores, permanent magnets, non-magnetic blocks and armature windings. Magnetic teeth are formed by the primary iron cores. A T-type unit is formed by each permanent magnet and the magnetic teeth on the two sides of the permanent magnet. The primary part comprises N*m T-type units, wherein the N is the number of coils in the windings of each phase, and the m is the number of the phases of the motor. A module is formed by i T-type units. The module-complementary-type flux-switching permanent magnet linear motor has the symmetrical complementarity, the manufacturing difficulty is lowered, waveforms of flux linkages and waveforms of counter electromotive force of the motor are symmetrical and are in sine shapes, fluctuation of push force is remarkably reduced, and the module-complementary-type flux-switching permanent magnet linear motor is particularly suitable for linear driving occasions such as urban rail traffic systems, factory transport transmission devices and elevators.
Description
Technical field
The present invention relates to the motor module that a kind of novel module complementary type magnetic flux switches permanent-magnetism linear motor and formation thereof, be specifically related to electrician, motor manufacturing technology field.
Background technology
Along with the development of industrial technology, linear drive system is widely applied.Compare with traditional electric rotating machine drive system, linear electric motors drive to save and by rotatablely moving, are converted to straight-line conversion equipment, have greatly reduced mechanical friction, not only can reduce costs, but also reduced noise, reduced maintenance cost, energy-conservation environmental protection again.Particularly in urban track traffic field, the shortcoming such as poor stability, the efficiency of traditional electric rotating machine drive system are low is restricting its development always, and adopt driving system of linear motor to replace electric rotating machine to drive, can overcome well the harmful effect that electric rotating machine drive system is brought in urban track traffic field, improve the efficiency of whole system simultaneously.
In recent years, along with the development of power electronics and magnetic material, permanent magnetic brushless has obtained development rapidly.It is high that this type of motor has efficiency, power density advantages of higher, and it has also had both the two-fold advantage of magneto and linear electric motors simultaneously.Compare with line inductance electromotor, the energy index of permanent magnetic linear synchronous motor is high, lightweight, volume is little, and has dynamic brake function.Yet, because permanent magnet and the armature winding of traditional magneto is arranged on respectively primary and secondary, and the cost of permanent magnet and armature is all higher, no matter be therefore to growing elementary short secondary drive system or all can bringing undoubtedly the increase of system cost to short elementary long secondary drive system.
At present, the rotary-type flux switch permanent magnet motor of bipolarity magnetic linkage just gets more and more people's extensive concerning, and it has higher power density.Permanent magnet and armature winding are all placed on stator, on rotor without winding, brushless, without permanent magnet, only by permeability magnetic material, formed, it is high that such motor has power density, simple in structure, is easy to heat radiation, high efficiency, the advantages such as high reliability.For its linear structure, exactly rotational structure is radially cut open, stator in rotational structure has just become elementary in linear structure, rotor has just become secondary, in view of the secondary of linear structure only consists of permeability magnetic material, there is no permanent magnet and winding, so such linear electric motors are specially adapted to the secondary occasion of short elementary length, as Rail Transit System etc.Yet the magnetic flux positive-negative half-cycle of the end phase winding of traditional magnetic flux switching straight line motor is asymmetric, thereby cause the parameter unbalances such as each opposite potential and inductance.Traditional modular magnetic flux switching straight line motor is not considered the complementarity of every phase winding and structure, has the shortcomings such as every phase magnetic linkage and back-emf positive-negative half-cycle are asymmetric, and detent force is large.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, object is to propose the motor module that a kind of T-shaped module complementary type magnetic flux switches permanent-magnetism linear motor and formation thereof, this motor has complementary symmetry, the magnetic linkage waveform of motor and counter potential waveform are symmetrical, sinusoidal, and complementary structure greatly reduces the detent force of motor, strengthened motor reliability of operation.
For solving the problems of the technologies described above, technical scheme provided by the invention is:
Module complementary type magnetic flux switches a permanent-magnetism linear motor, comprises primary and secondary, and described primary and secondary is salient-pole structure, between described primary and secondary, has air gap; Described elementary elementary iron core, permanent magnet, non-magnetic, the armature winding of comprising, described elementary iron core forms magnetic teeth, and the magnetic teeth of described permanent magnet and its both sides forms a T-shaped unit, described elementary N*m the T-shaped unit that comprise, N is the coil number in every phase winding, the number of phases that m is motor; Every i module of described T-shaped cell formation, fills described non-magnetic between adjacent two described modules; Described armature winding is installed in teeth groove, and the coil of an armature winding strides across a permanent magnet and two elementary iron cores form concentrated winding construction; Relative displacement between adjacent two out-phase in described module is 1/ (2m) * τ
stime, the relative displacement between the T-shaped unit of two homophases is λ
1=(k ± 1/2) * τ
s, the relative displacement in adjacent two modules between the T-shaped unit of out-phase is λ
2=(s+1/ (2m)) * τ
s, τ
sfor secondary pole span, k, s is positive integer; Relative displacement between adjacent two out-phase in described module is (1/m) * τ
stime, the relative displacement between the T-shaped unit of two homophases is λ
1=k* τ
s, the relative displacement in adjacent two modules between the T-shaped unit of out-phase is λ
2=(s+1/m) * τ
s.For this reason, Design of Permanent Magnet of the present invention flexibly, magnetic linkage waveform and back emf waveform symmetrical sine, the advantage such as detent force is large compared with magnetic flux density little, air gap, thrust output is strong, power density is higher, modularized design, short elementary long secondary application occasion motor cost are low.The present invention is specially adapted to short elementary long secondary structure linear electric motors application scenario, and for example City Rail Transit System, factory's transporting equipment and elevator isoline drive occasion.
Further, between described two modules, differ 1 secondary pole span τ
sor differ 1/2 secondary pole span τ
s.Between two modules due to these linear electric motors, can differ a secondary pole span τ
s(360 degree electrical degree), also can differ 1/2 τ
s(180 degree electrical degree).The width of supposing non-magnetic is τ
m, for three phase windings, work as τ
m=τ
stime, according to the order of " ABCABC ... ", wind the line successively from left to right, and the direction of winding of each unit is in full accord; If work as τ
m=1/2 τ
stime, still according to the order of " ABCABC ... ", wind the line successively, the coiling of two ends, left and right module or consistent, but the direction of winding of intermediate module is contrary with the direction of winding of other two modules, this structure can be saved the material of non-magnetic, thereby shortens the effective length of electric motor primary; On the other hand, due to modular structural design, can regulate the phase difference between modules by the width of non-magnetic in the middle of regulating, thereby arrive the object that reduces detent force, design relatively flexible.
Further, the number of described module is t, t is more than or equal to 2 positive integer, the position of a described t module can exchange arbitrarily, and not necessarily the order according to " ABCABC ... " arranges successively, now need to meet: the relative displacement between adjacent two out-phase in same module is 1/ (2m) * τ
stime, the relative displacement between the T-shaped unit of two homophases is λ
1=(k ± 1/2) * τ
sor λ
1=k τ
s, the relative displacement in adjacent two modules between the T-shaped unit of out-phase is λ
2=(s+1/ (2m)) * τ
sor λ
2=(s-1/m) * τ
s, τ
sfor secondary pole span, k, s is positive integer; Relative displacement between adjacent two out-phase in same module is (1/m) * τ
stime, the relative displacement between the T-shaped unit of two homophases is λ
1=k τ
sor λ
1=(k ± 1/2) * τ
s, the relative displacement in adjacent two modules between the T-shaped unit of out-phase is λ
2=(s+1/m) * τ
sor λ
2=(s-1/ (2m)) * τ
s.
Further, the concentrated winding of the T-shaped unit of described homophase is by mode flexible combination in series or in parallel with each other.
Further, the secondary of described motor consists of permeability magnetic material.Due to secondary structure simple (without winding, without permanent magnet), only by low-cost permeability magnetic material, formed, make this invention be specially adapted to the secondary application scenario such as the short elementary length such as urban track traffic, elevator drive system, can greatly reduce like this cost of system.
Further, described two adjacent permanent magnets adopts alternately parallel magnetization, does like this generation that can effectively prevent leakage field.
Further, the height of described permanent magnet is less than or equal to the height of magnetic teeth, and this improvement can be so that permanent magnetism
The height of body is adjustable, designs more flexible.
Further, described module comprises that j described modularization magnetic flux switches permanent-magnetism linear motor, and j is positive integer; J described modularization magnetic flux switches permanent-magnetism linear motor series and parallel and forms an integral body or separately control separately, thereby increased system survivability.
The invention has the beneficial effects as follows: the permanent magnet of described motor and armature winding are all placed on elementary upper, and secondary structure is simple, without permanent magnet, without winding, brushless, only permeability magnetic material, consists of, and has the advantages such as high efficiency, high power density, high reliability.And this motor has complementary structure, greatly reduce detent force, motor is more stably moved.Meanwhile, modular structure is conducive to produce, installation and maintenance, is specially adapted to the secondary application scenario of short elementary length, not only can lower manufacturing cost, and safe and reliable.Switch permanent-magnetism linear motor with traditional magnetic flux and compare, the following advantage that this design has:
1) armature winding and permanent magnet are all positioned at electric motor primary, are convenient to the cooling of motor;
2) modular design, greatly reduces manufacturing cost, has facilitated and has produced and safeguard, has reduced the impact producing due to mutual inductance between phase and phase simultaneously, the fault-tolerant ability while having promoted motor operation;
3) complementary structural design, improves the sinusoidal degree of magnetic linkage and back emf waveform, and detent force also obviously reduces, and motor operation is more stable.
4) width elementary unshakable in one's determination of T-shaped magnetic flux switching permanent-magnetism linear motor switches the little of permanent-magnetism linear motor than traditional E type magnetic flux, therefore the teeth groove area of T-shaped motor wants large, the number of turn that is armature winding can increase to some extent, what will make like this magnetic linkage of T-shaped motor and the peakedness ratio E type of back-emf wants large, finally causes the thrust of T-shaped motor to want large; In addition, in E type magnetic flux switching straight line motor, permanent magnet width is than the present invention motor wide (but total permanent magnet consumption is identical), this just makes in the degree of saturation of the elementary iron core of E type magnetic flux switching straight line motor serious more a lot than of the present invention, so can only alleviate by expanding the width of elementary iron core the phenomenon of satiety unshakable in one's determination, this has just caused the more of motor described in the amount ratio of elementary iron core of E type motor, has increased elementary load.
5) magnetic linkage of described T-shaped motor switches the more symmetrical of permanent-magnetism linear motor than traditional type magnetic flux, because (in conventional motors, every phase winding has respectively 4 coils to have inherited feature complementary between conventional motors homophase magnetic linkage in T-shaped motor, between every two coils, exist complementary), simultaneously also balance the impact of end effect, thereby make the magnetic linkage of motor and back emf waveform more symmetrical, sinusoidal.
6) in addition, the position of the t of a described motor module can exchange arbitrarily, and not necessarily the order according to " ABCABC ... " arranges successively, the degree of modularity of T-shaped motor is than traditional height, the flexibility of design is stronger, the electric machine structure that can go out to satisfy condition according to different Demand Design.
Accompanying drawing explanation
Fig. 1 is that every two T-shaped unit form a module, and a module complementary type magnetic flux in the present invention of totally 6 modules switches the structural representation of permanent-magnetism linear motor.
Fig. 2 is that every four T-shaped unit form a module, and a module complementary type magnetic flux in the present invention of totally 3 modules switches the structural representation of permanent-magnetism linear motor.
Fig. 3 is the magnetic linkage comparison of wave shape figure that the present invention and traditional magnetic flux switch permanent-magnetism linear motor.
Fig. 4 be the present invention and and traditional magnetic flux switch the detent force comparison of wave shape figure of permanent-magnetism linear motor.
In figure: 1-basic module; 2-armature winding; 3-permanent magnet; Non-magnetic of 4-; 5-is elementary; 6-level; 7-T type unit.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the specific embodiment of the present invention is described further.
Module complementary type magnetic flux switches a permanent-magnetism linear motor, comprises that elementary 5 and secondary 6, described elementary 5 and secondary 6 are salient-pole structure, between described elementary 5 and secondary 6, has air gap; Described elementary 5 comprise elementary iron core, permanent magnet 3, non-magnetic 4, armature winding 2, elementary iron core in the middle of described elementary iron core is all U-shaped, armature winding is installed in U-shaped teeth groove, described elementary iron core forms magnetic teeth, the magnetic teeth of described permanent magnet 3 and its both sides forms a T-shaped unit 7, described elementary 5 comprise N*m T-shaped unit 7, and N is the coil number in every phase winding, the number of phases that m is motor; Every i described T-shaped unit 7 forms a module 1, between adjacent two described modules 1, fills described non-magnetic 4; Described armature winding 2 is installed in teeth groove, and the coil of an armature winding 2 strides across a permanent magnet 3 and two elementary iron cores form concentrated winding construction; Relative displacement between adjacent two out-phase in same module 1 is 1/ (2m) * τ
stime, the relative displacement between the T-shaped unit 7 of two homophases is λ
1=(k ± 1/2) * τ
s, the relative displacement in adjacent two modules 1 between the T-shaped unit 7 of out-phase is λ
2=(s+1/ (2m)) * τ
s, τ
sfor secondary pole span, k, s is positive integer; Relative displacement between adjacent two out-phase in same module 1 is (1/m) * τ
stime, the relative displacement between the T-shaped unit 7 of two homophases is λ
1=k* τ
s, the relative displacement in adjacent two modules 1 between the T-shaped unit 7 of out-phase is λ
2=(s+1/m) * τ
s.
Between described two modules 1, differ 1 secondary pole span τ
sor differ 1/2 secondary pole span τ
s.
The number of described module 1 is t, t is more than or equal to 2 positive integer, the position of a described t module 1 can exchange arbitrarily, and not necessarily the order according to " ABCABC ... " arranges successively, now need to meet: the relative displacement between adjacent two out-phase in same module 1 is 1/ (2m) * τ
stime, the relative displacement between the T-shaped unit 7 of two homophases is λ
1=(k ± 1/2) * τ
sor λ
1=k τ
s, the relative displacement in adjacent two modules 1 between the T-shaped unit 7 of out-phase is λ
2=(s+1/ (2m)) * τ
sor λ
2=(s-1/m) * τ
s, τ
sfor secondary pole span, k, s is positive integer; Relative displacement between adjacent two out-phase in same module 1 is (1/m) * τ
stime, the relative displacement between the T-shaped unit 7 of two homophases is λ
1=k τ
sor λ
1=(k ± 1/2) * τ
s, the relative displacement in adjacent two modules 1 between the T-shaped unit 7 of out-phase is λ
2=(s+1/m) * τ
sor λ
2=(s-1/ (2m)) * τ
s.
The concentrated winding of the T-shaped unit 7 of described homophase is by mode flexible combination in series or in parallel with each other.Described secondary iron core consists of permeability magnetic material.Described two adjacent permanent magnets 3 adopts alternately parallel magnetization.The height of described permanent magnet 3 is less than or equal to the height of magnetic teeth.Described motor comprises that j described modularization magnetic flux switches permanent-magnetism linear motor, and j is positive integer; J described modularization magnetic flux switches permanent-magnetism linear motor series and parallel and forms an integral body or separately control separately.
It is monolateral slab construction, bilateral slab construction or cylinder type that described modularization magnetic flux switches permanent-magnetism linear motor, and such design makes electric motors function applied widely; In addition, it is motor or generator that described modularization magnetic flux switches permanent-magnetism linear motor, this motor module comprises that j described modularization magnetic flux switches permanent-magnetism linear motor, j is positive integer, j described modularization magnetic flux switches permanent-magnetism linear motor series and parallel and forms an integral body or separately control separately, and j is positive integer.Described motor is in the situation that winding direction of winding is definite, and what permanent magnet magnetizing direction can be with before is complete contrary.Described motor is cascaded mutually with the winding of phase module.
For design feature of the present invention and operation logic are described, the three phase electric machine of take below illustrates as example.
Embodiment 1
Referring to Fig. 1, module complementary type magnetic flux provided by the invention switches permanent-magnetism linear motor structure and comprises electric motor primary 5 and motor secondary 6, has air gap between the two.Elementary 5 and secondary 6 all adopt salient-pole structure.And permanent magnet 3 and winding 2 are all on elementary 5, and secondary 6 only consist of permeability magnetic material, without winding, without permanent magnet.
Now, as number of phases m=3, the relative displacement between adjacent two out-phase in same module is 1/6 τ
stime, k=4, s=2, λ
1=9/2 τ
s, λ
2=13/6 τ
s, τ
m=τ
s.
Described electric motor primary 5 comprises T-shaped unit 7, and N*m altogether, every i T-shaped unit 7 forms a module, and N is the coil number in every phase winding, and i is positive integer.And with non-magnetic 4, fill between adjacent two modules 1.Each T-shaped unit 7 consists of two elementary teeth 5, a permanent magnet and the armature winding 2 that strides across these two teeth, and armature winding 2 is placed in two teeth groove, in this example, m=3, motor has A, B, C three-phase as shown in the figure; N=4, has four coils to be in series in every phase winding; I=4, each module 1 is comprised of four T-shaped unit.
In this example, each has four groups of identical T-shaped unit 7 in mutually, and each module consists of 2 T-shaped unit 7, and the concentrated winding of first module is A1, B1; The concentrated winding of second module is C1, A2; The concentrated winding of the 3rd module is B2, C2; The concentrated winding of the 4th module is A3, B3; The concentrated winding of the 5th module is C3, A4; The concentrated winding of the 6th module is B4, C4.In fact, be exactly along elementary coiling in turn according to A, B, C three-phase.Between each module, adopt non-magnet material to connect, as shown in Figure 1, the spacing between module should meet τ
m=τ
s, τ
mfor the width of non-magnetic 4, τ
sfor secondary pole span.And guarantee that the winding direction in each module is consistent.
As shown in Figure 1, the concentrated winding of A in is mutually in series by A1, A2, these four coils of A3, A4, and B, C are also like this mutually.For convenient, we concentrate winding to be defined as the first winding A1, B1, C1, and A2, B2, C2 are defined as the second winding, and A3, B3, C3 are defined as the tertiary winding, and A4, B4, C4 are defined as the 4th winding.As shown in Figure 1, in A phase (or B, C phase), the relative displacement between adjacent two coils is λ
1=(k ± 1/2) * τ
s, and in same winding, for example, relative displacement between adjacent two out-phase (A1 and B1, or B1 and C1) is λ
2=(s+1/ (2m)) * τ
s, τ
sfor secondary pole span, k, s is positive integer, the number of phases that m is motor.
The motor of this structure has following features: first, the both ends of first module are winding A1 and B1, the both ends of second module are winding C1 and A2, the both ends of the 3rd module are winding B2 and C2, the both ends of first module are winding A3 and B3, the both ends of second module are winding C3 and A4, the both ends of the 3rd module are winding B4 and C4, this structure has guaranteed often have four windings in end in mutually, alleviate the difference on the magnetic circuit that end effect causes, thereby caused magnetic linkage and the back-emf symmetrical complement in each module.And in each concentrated winding, magnetic linkage or the back emf waveform of each phase differs 180 degree electrical degrees, this complementary characteristic equates four induction back-emf high order even-order harmonic component amplitudes in winding, single spin-echo, when synthesizing an opposite potential, cancel out each other, thereby guarantee the permanent magnetism magnetic linkage of motor and the sinusoidal symmetry that back-emf has height.
Relative displacement between the T-shaped unit 7 of the second, two adjacent homophase is λ
1=(k ± 1/2) τ
s, k is positive integer, thus the detent force waveform that guarantees each module has the phase difference of 180 degree electrical degrees, and the synthetic detent force of every part is weakened greatly.
In Fig. 1, specific embodiment also can be used as a motor module, switches permanent-magnetism linear motor module be combined into a motor module by j such module complementary type magnetic flux, and j is positive integer, so further reduces detent force, improves power output.Wherein, these j described module complementary type magnetic flux switching permanent-magnetism linear motors can an integral body in series or separately control separately.
Embodiment 2
As shown in Figure 2, work as m=3, the relative displacement between adjacent two out-phase in same module is 1/3 τ
stime, k=4, s=2, λ
1=4 τ
s, λ
2=11/6 τ
s, τ
m=1/2 τ
s.The difference that module complementary type magnetic flux in the present embodiment switches in permanent-magnetism linear motor and embodiment 1 is that described motor is by module of four T-shaped cell formations, totally 3 modules.The width of non-magnetic 4 between adjacent two modules 1 becomes original half, i.e. τ
m=1/2 τ
s, τ
mfor the width of non-magnetic, τ
sfor secondary pole span, and the now relative displacement between adjacent two out-phase in a module is (1/m) * τ
s.Method for winding still winds the line in turn according to " ABCABC ... " three-phase, but the winding direction of second module is completely contrary with the winding direction of other two modules, must meet following two conditions simultaneously: the relative displacement between the T-shaped unit of two homophases is λ
1=k* τ
sor λ
1=(k ± 1/2) * τ
s; Relative displacement in adjacent two modules between the T-shaped unit of out-phase is λ
2=(s-1/ (2m)) * τ
s, k, s is positive integer, the number of phases that m is motor, m=3 in this example, motor is three phase windings.Thereby form mutual symmetry structure, and than its archetype, shortened to a certain extent elementary length, saved material.Other structure and characteristics are all identical with embodiment 1.
Magnetic linkage comparison of wave shape figure of the present invention as shown in Figure 3, compare with the magnetic linkage waveform of traditional magnetic flux switching straight line motor, the present invention proposes novel module complementary type magnetic flux switching straight line motor, due to end effect, peak one peak value of phase magnetic linkage that is in end is less than interjacent phase magnetic linkage, so just causes three-phase magnetic linkage waveform asymmetric.And for motor as herein described, magnetic linkage Symmetrical, and peak one peak value of the phase magnetic linkage of end and middle phase magnetic linkage is basic identical, has embodied the design feature of symmetrical complement.Owing to having guaranteed to be all subject to equal end effect in every phase winding, balance the impact of end effect on motor, thereby make the magnetic linkage of motor and back emf waveform more symmetrical, sinusoidal.
Detent force comparison of wave shape figure as shown in Figure 4, and the detent force of traditional magnetic flux switching straight line motor compares, after the present invention takes the structure of module complementary type, the peak one cutting edge of a knife or a sword value of detent force obviously reduces, and motor performance significantly improves.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention.All any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. a T-shaped magnetic flux switches permanent-magnetism linear motor and module thereof, it is characterized in that: comprise elementary (5) and secondary (6), described elementary (5) and secondary (6) are salient-pole structure, between described elementary (5) and secondary (6), have air gap;
Described elementary (5) comprise elementary iron core, permanent magnet (3), non-magnetic (4), armature winding (2), described elementary iron core forms magnetic teeth, the magnetic teeth of described permanent magnet (3) and its both sides forms a T-shaped unit (7), described elementary (5) comprise N*m described T-shaped unit (7), N is the coil number in every phase winding, the number of phases that m is motor; Every i described T-shaped unit (7) forms a module (1), fills described non-magnetic (4) between adjacent two described modules (1); Described armature winding (2) is installed in teeth groove, and the coil of an armature winding (2) strides across a permanent magnet (3) and two elementary iron cores form concentrated winding construction;
Relative displacement between adjacent two out-phase in described module (1) is 1/ (2m) * τ
stime, the relative displacement between the T-shaped unit (7) of two homophases is λ
1=(k ± 1/2) * τ
s, the relative displacement between the T-shaped unit (7) of the upper out-phase of adjacent two modules (1) is λ
2=(s+1/ (2m)) * τ
s, τ
sfor secondary pole span, k, s is positive integer;
Relative displacement between adjacent two out-phase in described module (1) is (1/m) * τ
stime, the relative displacement between the T-shaped unit (7) of two homophases is λ
1=k* τ
s, the relative displacement between the T-shaped unit (7) of the upper out-phase of adjacent two modules (1) is λ
2=(s+1/m) * τ
s.
2. T-shaped magnetic flux according to claim 1 switches permanent-magnetism linear motor and module thereof, it is characterized in that: between described two modules (1), differ 1 secondary pole span τ
sor differ 1/2 secondary pole span τ
s.
3. T-shaped magnetic flux according to claim 1 switches permanent-magnetism linear motor and module thereof, it is characterized in that: the number of described module (1) is t, t is more than or equal to 2 positive integer, the position of a described t module (1) can exchange arbitrarily, and not necessarily the order according to " ABCABC ... " arranges successively, now need to meet:
Relative displacement between adjacent two out-phase in same module (1) is 1/ (2m) * τ
stime, the relative displacement between the T-shaped unit (7) of two homophases is λ
1=(k ± 1/2) * τ
sor λ
1=k τ
s, the relative displacement between the T-shaped unit (7) of the upper out-phase of adjacent two modules (1) is λ
2=(s+1/ (2m)) * τ
sor λ
2=(s-1/m) * τ
s, τ
sfor secondary pole span, k, s is positive integer;
Relative displacement between adjacent two out-phase in same module (1) is (1/m) * τ
stime, the relative displacement between the T-shaped unit (7) of two homophases is λ
1=k τ
sor λ
1=(k ± 1/2) * τ
s, the relative displacement between the T-shaped unit (7) of the upper out-phase of adjacent two modules (1) is λ
2=(s+1/m) * τ
sor λ
2=(s-1/ (2m)) * τ
s.
4. T-shaped magnetic flux according to claim 1 switches permanent-magnetism linear motor and module thereof, it is characterized in that: the concentrated winding of the T-shaped unit (7) of described homophase is by mode flexible combination in series or in parallel with each other.
5. T-shaped magnetic flux according to claim 1 switches permanent-magnetism linear motor and module thereof, it is characterized in that: described secondary iron core consists of permeability magnetic material.
6. T-shaped magnetic flux according to claim 1 switches permanent-magnetism linear motor and module thereof, it is characterized in that: described two adjacent permanent magnets (3) adopts alternately parallel magnetization.
7. according to the T-shaped magnetic flux described in claim 1 or 6, switch permanent-magnetism linear motor and module thereof, it is characterized in that: the height of described permanent magnet (3) is less than or equal to the height of magnetic teeth.
8. T-shaped magnetic flux according to claim 1 switches permanent-magnetism linear motor and module thereof, it is characterized in that: described module comprises that j described modularization magnetic flux switches permanent-magnetism linear motor, and j is positive integer; J described modularization magnetic flux switches permanent-magnetism linear motor series and parallel and forms an integral body or separately control separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410387913.3A CN104167896B (en) | 2014-08-07 | 2014-08-07 | A kind of T-shaped magnetic flux switching permanent-magnetism linear motor and module thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410387913.3A CN104167896B (en) | 2014-08-07 | 2014-08-07 | A kind of T-shaped magnetic flux switching permanent-magnetism linear motor and module thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104167896A true CN104167896A (en) | 2014-11-26 |
| CN104167896B CN104167896B (en) | 2016-09-14 |
Family
ID=51911589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410387913.3A Expired - Fee Related CN104167896B (en) | 2014-08-07 | 2014-08-07 | A kind of T-shaped magnetic flux switching permanent-magnetism linear motor and module thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104167896B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105429423A (en) * | 2015-11-17 | 2016-03-23 | 中国石油大学(华东) | Dual-long-secondary and primary permanent magnetic field modulation linear motor for oil pumping unit |
| CN106685177A (en) * | 2017-01-23 | 2017-05-17 | 北京理工大学 | Subsection slanted modularization switch magnetic flux linear motor |
| CN106972730A (en) * | 2017-06-02 | 2017-07-21 | 南京航空航天大学金城学院 | One kind distribution field excitation linear permanent-magnet type flux switching motor |
| CN107207209A (en) * | 2015-02-05 | 2017-09-26 | 奥的斯电梯公司 | cordless elevator control system |
| CN108712053A (en) * | 2018-05-28 | 2018-10-26 | 南京航空航天大学 | The permanent magnetic linear synchronous motor and its Winding Design method of modularization τ/2 |
| CN110957889A (en) * | 2019-12-02 | 2020-04-03 | 深圳市深信创联智能科技有限责任公司 | Linear permanent magnet synchronous motor and thrust fluctuation suppression method thereof |
| CN110957876A (en) * | 2019-12-05 | 2020-04-03 | 石家庄铁道大学 | Bilateral magnetic flux switching permanent magnet linear motor |
| CN111224529A (en) * | 2018-11-27 | 2020-06-02 | B和R工业自动化有限公司 | Transport device, transport unit and method for operating a transport device |
| US10686357B2 (en) | 2017-05-12 | 2020-06-16 | Otis Elevator Company | Door operator with switched flux linear motor |
| CN114421733A (en) * | 2022-01-24 | 2022-04-29 | 山东科技大学 | Modular magnetic flux switching linear motor based on common coil bidirectional excitation unit |
| CN115922365A (en) * | 2022-11-28 | 2023-04-07 | 西安电子科技大学 | Salient pole magnetic flux combined type electromagnetic module X-Y-R working platform |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201656740U (en) * | 2010-05-12 | 2010-11-24 | 东南大学 | Complementary type magnetic flux switching permanent magnet linear motor and motor module comprising same |
| CN103051148A (en) * | 2012-12-13 | 2013-04-17 | 东南大学 | Modular primary permanent magnetic linear motor and motor module consisting of same |
-
2014
- 2014-08-07 CN CN201410387913.3A patent/CN104167896B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201656740U (en) * | 2010-05-12 | 2010-11-24 | 东南大学 | Complementary type magnetic flux switching permanent magnet linear motor and motor module comprising same |
| CN103051148A (en) * | 2012-12-13 | 2013-04-17 | 东南大学 | Modular primary permanent magnetic linear motor and motor module consisting of same |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107207209A (en) * | 2015-02-05 | 2017-09-26 | 奥的斯电梯公司 | cordless elevator control system |
| US10934131B2 (en) | 2015-02-05 | 2021-03-02 | Otis Elevator Company | Ropeless elevator control system |
| CN105429423A (en) * | 2015-11-17 | 2016-03-23 | 中国石油大学(华东) | Dual-long-secondary and primary permanent magnetic field modulation linear motor for oil pumping unit |
| CN106685177A (en) * | 2017-01-23 | 2017-05-17 | 北京理工大学 | Subsection slanted modularization switch magnetic flux linear motor |
| CN106685177B (en) * | 2017-01-23 | 2019-05-17 | 北京理工大学 | A kind of segmentation tilt module Switching flux linear motor |
| US10686357B2 (en) | 2017-05-12 | 2020-06-16 | Otis Elevator Company | Door operator with switched flux linear motor |
| CN106972730A (en) * | 2017-06-02 | 2017-07-21 | 南京航空航天大学金城学院 | One kind distribution field excitation linear permanent-magnet type flux switching motor |
| CN108712053A (en) * | 2018-05-28 | 2018-10-26 | 南京航空航天大学 | The permanent magnetic linear synchronous motor and its Winding Design method of modularization τ/2 |
| CN111224529A (en) * | 2018-11-27 | 2020-06-02 | B和R工业自动化有限公司 | Transport device, transport unit and method for operating a transport device |
| CN110957889B (en) * | 2019-12-02 | 2020-10-27 | 深圳市深信创联智能科技有限责任公司 | Linear permanent magnet synchronous motor and thrust fluctuation suppression method thereof |
| CN110957889A (en) * | 2019-12-02 | 2020-04-03 | 深圳市深信创联智能科技有限责任公司 | Linear permanent magnet synchronous motor and thrust fluctuation suppression method thereof |
| CN110957876A (en) * | 2019-12-05 | 2020-04-03 | 石家庄铁道大学 | Bilateral magnetic flux switching permanent magnet linear motor |
| CN110957876B (en) * | 2019-12-05 | 2022-05-06 | 石家庄铁道大学 | Bilateral magnetic flux switching permanent magnet linear motor |
| CN114421733A (en) * | 2022-01-24 | 2022-04-29 | 山东科技大学 | Modular magnetic flux switching linear motor based on common coil bidirectional excitation unit |
| CN114421733B (en) * | 2022-01-24 | 2023-11-14 | 山东科技大学 | Modularized magnetic flux switching linear motor based on common coil bidirectional excitation unit |
| CN115922365A (en) * | 2022-11-28 | 2023-04-07 | 西安电子科技大学 | Salient pole magnetic flux combined type electromagnetic module X-Y-R working platform |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104167896B (en) | 2016-09-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104167896A (en) | T-type flux-switching permanent magnet linear motor and modules of T-type flux-switching permanent magnet linear motor | |
| CN101860174B (en) | Complementary type modularization permanent-magnetism linear motor and motor die set formed by same | |
| CN103051148B (en) | Modular primary permanent magnetic linear motor and motor module consisting of same | |
| CN102013786B (en) | Modular complementary type primary permanent magnet linear motor and motor module formed thereby | |
| CN103647382B (en) | Bimorph transducer high power density magnetic flux switch permanent magnet motor | |
| CN201656740U (en) | Complementary type magnetic flux switching permanent magnet linear motor and motor module comprising same | |
| CN101834512B (en) | Complementary modular hybrid excited linear motor | |
| CN105790456B (en) | A kind of three-phase hybrid excitation flux switch motor structure | |
| CN102185451A (en) | Segmented rotor type magnetic flux switching motor with hybrid excitation and magnetic adjustment method | |
| CN102931802B (en) | A kind of complementary-type fault-tolerant linear | |
| CN104065234A (en) | Bilateral primary permanent magnet linear motor without yoke at secondary | |
| CN110165852B (en) | Double-stator phase group concentrated winding and magnetism gathering type permanent magnet linear motor | |
| CN105553222A (en) | End-effect-free fault-tolerant permanent magnet vernier linear motor | |
| CN109245483B (en) | Bilateral alternating-pole permanent magnet linear motor without yoke part at secondary level | |
| CN103595217A (en) | Permanent magnetic linear motor provided with no yoke portions on secondary and capable of conducting bilateral magnetic flow switching | |
| WO2021103246A1 (en) | Primary permanent magnet bilateral linear magnetic field modulation electric motor and low magnetic resistance design method therefor | |
| CN104993629A (en) | Winding-type linear brushless doubly-fed generator | |
| CN201674379U (en) | Complementary type magnetic flux switch mixed excitation linear motor | |
| CN103618429A (en) | Permanent-magnet linear motor and motor module comprising same | |
| CN104638796A (en) | Magnetic circuit compensating primary electro-magnetic linear motor | |
| CN102142763B (en) | Modularized complementary type primary double-fed brushless direct-current linear motor and motor module composed by same | |
| CN203722452U (en) | Secondary no-yoke double-sided linear motor of primary permanent magnet type | |
| CN101656459A (en) | Linear motor with controllable magnetic field type primary permanent magnet structure for city railway train | |
| Cao et al. | A hybrid excitation flux-switching permanent magnet linear motor for urban rail transit | |
| CN201956874U (en) | Permanent magnet direct drive type linear motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160914 Termination date: 20190807 |