Utility model content
Technical problem to be solved in the utility model is to provide a kind of magnetic flux switching type transverse magnetic flux permanent magnetism linear electric motors, solves in traditional horizontal magnetic pass permanent magnetic line electromotor, permanent magnet large usage quantity, leakage field phenomenon is serious, the defect that radiating effect is poor, and structure is simple, be easy to install, reliability is higher.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of magnetic flux switching type transverse magnetic flux permanent magnetism linear electric motors, and comprise two stators and at least one mover, the two ends of described mover are placed in described two stators respectively.Described stator is C-shaped, and described stator inner wall three face is equipped with multiple bar shaped tooth.
Described mover comprises connecting plate, the two ends of described connecting plate are respectively equipped with three salient-pole structures, each described salient-pole structure comprises two U-shaped teeth and two L-type teeth, described two U-shaped spaces of teeth are arranged, described two L-type teeth are separately positioned on the relative side of two described U-shaped teeth, and the described U-shaped tooth that two described L-type teeth are adjacent is oppositely arranged, be respectively equipped with permanent magnet between described L-type tooth and described U-shaped tooth and between described two U-shaped teeth, the monolateral U-shaped tooth of each described permanent magnet and both sides thereof and/or L-type tooth by armature winding around.
The beneficial effects of the utility model are: a kind of magnetic flux switching type transverse magnetic flux permanent magnetism linear electric motors described in the utility model, compared with traditional horizontal magnetic pass permanent magnetic line electromotor, greatly reduce the consumption of permanent magnet, and permanent magnet cutting orientation magnetizing is embedded in mover core, permanent magnet gathers magnetic, radiating effect is better, has possessed the advantage of horizontal magnetic pass permanent magnetic line electromotor and Magneticflux-switching type permanent-magnetism linear motor simultaneously:
(1) by appropriate design magnetic structure and parameter, higher force density can be realized;
(2) elementary, secondary spatial utilance is higher;
(3) fault-tolerant ability is comparatively strong, and operational reliability is high;
(4) detent force and wave force little, control characteristic is flexible;
(5) structure is simply easy to processing;
(6) armature magnetic circuits and permanent magnetic circuit are in parallel, and weak magnetism speed expansion ability is strong, and in raising power factor, advantage is larger.
A kind of magnetic flux switching type transverse magnetic flux permanent magnetism linear electric motors described in the utility model, can be used for the field had higher requirements to the reliability service of system, particularly system bulk and continuous operation are had to the application scenario such as Aero-Space, military equipment of strict demand.
On the basis of technique scheme, the utility model can also do following improvement.
Further: described two stators are symmetricly set on the two ends of described mover.
Further: three salient-pole structures of the every one end of described connecting plate, one of them salient-pole structure is axially disposed within the end face of end along described connecting plate, and two other salient-pole structure is axially oppositely arranged on end along described connecting plate.
Further: described permanent magnet parallel magnetization and adjacent two permanent magnet polarities are contrary.
Further: the height of described U-shaped tooth equals the height of described L-type tooth, and is greater than the height of described permanent magnet.
Further: the top of each described L-type tooth is respectively equipped with chamfering, the top, two ends of each described U-shaped tooth is respectively equipped with chamfering, forms recess successively respectively between described L-type tooth and U-shaped tooth and between described two U-shaped teeth by described chamfering.
Further: the notch width between described L-type tooth and U-shaped tooth is less than the notch width between the two ends of each described U-shaped tooth.
Further: the recess that the multiple bar shaped teeth on each described stator inner wall three are formed between L-type tooth and/or U-shaped tooth respectively and in three salient-pole structures of described connecting plate one end matches and arranges.
Further: the armature winding of the opposite position in each described salient-pole structure is one another in series connection.
Further: described connecting plate is made up of permeability magnetic material or non-magnet material.
Embodiment
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in Figure 1, a kind of magnetic flux switching type transverse magnetic flux permanent magnetism linear electric motors, comprise two stators 1 and at least one mover 2, the two ends of described mover 2 are placed in described two stators 1 respectively.In the present embodiment, described two stators 1 are symmetricly set on the two ends of described mover 2.Schematically depict two stators 1 and a mover 2 in figure, the number of certain mover 2 is not limited thereto, and can increase according to actual conditions.Such as, when needs No. one three phase electric machine, the position that we can be parallel with shown mover 2 in the drawings increases by two movers, can realize three phase electric machine and provide power.
As shown in Figure 2, described stator 1 is C-shaped, and described stator 1 inwall three face is equipped with multiple bar shaped tooth.It should be noted that in the present embodiment, described stator 1 is only made up of permeability magnetic material, compared with traditional mode, both without permanent magnet also without winding, structure is simple, and cost is lower.
As shown in Figure 3, described mover 2 comprises connecting plate 21, the two ends of described connecting plate 21 are respectively equipped with three salient-pole structures 22, each described salient-pole structure 22 comprises two U-shaped teeth 221 and two L-type teeth 222, described two U-shaped tooth 221 intervals are arranged, described two L-type teeth 222 are separately positioned on the relative side of two described U-shaped teeth 221, and the described U-shaped tooth 221 that two described L-type teeth 222 are adjacent is oppositely arranged, permanent magnet 223 is respectively equipped with between described L-type tooth 222 and described U-shaped tooth 221 and between described two U-shaped teeth 221, the monolateral U-shaped tooth 221 of each described permanent magnet 223 and both sides thereof and/or L-type tooth 222 by armature winding 224 around.
Wherein, three salient-pole structures 22 of the every one end of described connecting plate 21, one of them salient-pole structure 22 is axially disposed within the end face of end along described connecting plate 21, and two other salient-pole structure 22 is axially oppositely arranged on end along described connecting plate 21.
Described U-shaped tooth adopts silicon steel plate packing, effectively can reduce the leakage flux of motor, strengthens magnetic flux rate.
In the present embodiment, described permanent magnet 223 parallel magnetization and adjacent two permanent magnet 223 polarity are contrary.
Preferably, the height of described U-shaped tooth 221 equals the height of described L-type tooth 222, and is greater than the height of described permanent magnet 223.
It should be noted that, the top of each described L-type tooth 222 is respectively equipped with chamfering, the top, two ends of each described U-shaped tooth 221 is respectively equipped with chamfering, forms recess successively respectively between described L-type tooth 222 and U-shaped tooth 221 and between described two U-shaped teeth 221 by described chamfering.
Preferably, the width of each described permanent magnet 223 can adjust according to actual conditions.It is to be noted, notch width when permanent magnet 223 width converts between U-shaped tooth 221 two ends is greater than the notch width between described L-type tooth 222 and U-shaped tooth 221 all the time, thus the problem that when avoiding that in the middle part of U-shaped tooth 221, magnetic flux density is more saturated, U-shaped tooth 221 mid portion magnetic resistance is larger, add the magnetic flux density between U-shaped tooth 221 two ends, improve back electromotive force amplitude.
In the present embodiment, the recess that the multiple bar shaped teeth on each described stator 1 inwall three are formed between L-type tooth 222 and/or U-shaped tooth 221 respectively and in three salient-pole structures 22 of described connecting plate 21 one end matches and arranges.
In the present embodiment, the armature winding 224 of the opposite position in each described salient-pole structure 22 is one another in series connection.
In the present embodiment, described connecting plate 221 is made up of permeability magnetic material or non-magnet material.
As shown in Figure 4, for convenience of description, permanent magnet 223 in our row's of setting salient-pole structure 22 is from being followed successively by the first permanent magnet inward outward, second permanent magnet and the 3rd permanent magnet, L-type tooth 222 in upper row's salient-pole structure 22 and U-shaped tooth 221 are from being followed successively by the first L-type tooth inward outward, first U-shaped tooth, second U-shaped tooth and the second L-type tooth, in like manner, we also set permanent magnet 223 in lower row's salient-pole structure 22 from being followed successively by the 4th permanent magnet inward outward, 5th permanent magnet and the 6th permanent magnet, L-type tooth 222 in lower row's salient-pole structure 22 and U-shaped tooth 221 are from being followed successively by the 3rd L-type tooth inward outward, 3rd U-shaped tooth, 4th U-shaped tooth and the 4th L-type tooth.
As can be seen from the figure, the bar shaped tooth of the second U-shaped tooth and the outer one end of the 4th U-shaped tooth corresponding described stator 1 respectively in salient-pole structure 22 up and down in row, groove between the bar shaped tooth of corresponding described stator 1 inwall of remainder difference, the corresponded manner of side is just in time contrary with the corresponded manner of the bar shaped tooth arranging salient-pole structure 22 and described stator inner wall up and down.Describedly arrange permanent magnet 223 parallel magnetization in salient-pole structure 21 up and down and adjacent two permanent magnet polarities are contrary, the magnetic flux that the magnetic flux that first permanent magnet and the second permanent magnet produce produces with the 3rd permanent magnet after the first U-shaped tooth gathers magnetic converges downward gathering, in like manner, the magnetic flux that the magnetic flux that 4th permanent magnet and the 5th permanent magnet produce produces with the 6th permanent magnet after the 3rd U-shaped tooth gathers magnetic converges mutually upwards to be assembled, magnetic flux equal and opposite in direction direction now due to the generation of two rows salient-pole structure is contrary, magnetic flux is forced to move towards to change, to side, U-shaped tooth is assembled, the second U-shaped tooth is got back to via stator, 4th U-shaped tooth and the first L-type tooth, 3rd L-type tooth, thus formation transverse magnetic flux.
For three phase electric machine, we can at described connecting plate 21, and three groups of movers 2 are fixed at two ends respectively, often organizes mover 2 and is a phase, the electrical degree difference 120 degree of every phase promoter 2.
The utility model described a kind of magnetic flux switching type transverse magnetic flux permanent magnetism linear electric motors compared with traditional horizontal magnetic pass permanent magnetic line electromotor, greatly reduce the consumption of permanent magnet, and permanent magnet cutting orientation magnetizing is embedded in mover core, permanent magnet gathers magnetic, radiating effect is better, while improving electric motor primary, secondary spatial utilance, force density also improves thereupon; Compared with traditional Magneticflux-switching type permanent-magnetism linear motor, achieve the decoupling zero of electric loading and magnetic loading, symmetric structure, make motor detent force less, as long as rational project organization parameter, force density can increase substantially.
A kind of magnetic flux switching type transverse magnetic flux permanent magnetism linear electric motors described in the utility model, owing to achieving electromagnetic decoupling between phase and phase, its ability that operates with failure is comparatively outstanding; Modular design makes this motor be convenient to adopt heterogeneous structure.It is simultaneously with high reliability, high force density, high efficiency advantage, and structure is simply easy to processing, can be used for the field that the reliability service of system is had higher requirements, particularly system bulk and continuous operation are had to the application scenario such as Aero-Space, military equipment of strict demand.
A kind of magnetic flux switching type transverse magnetic flux permanent magnetism linear electric motors described in the utility model belong to bilateral slab construction, symmetrical configuration, and detent force is little, and Coupling Between Phases is little.Transverse flux linear motor magnetic line of force place plane is different from traditional original rectilinear motor magnetic line of force place plane feature parallel with motor movement with motor movement direction is vertical.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.