CN100394671C - Reluctance motor and magnet of stator for reluctance motor - Google Patents
Reluctance motor and magnet of stator for reluctance motor Download PDFInfo
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- CN100394671C CN100394671C CNB2004100029364A CN200410002936A CN100394671C CN 100394671 C CN100394671 C CN 100394671C CN B2004100029364 A CNB2004100029364 A CN B2004100029364A CN 200410002936 A CN200410002936 A CN 200410002936A CN 100394671 C CN100394671 C CN 100394671C
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Abstract
Provided is a reluctance motor of novel arrangement capable of readily replacing a conventional small DC motor in which the size and vibration can be reduced while suppressing an increase in manufacturing cost.The reluctance motor comprises a stator having 2m (m is a natural number of 1 or above) salient poles in which total 2m magnets 12 are arranged in the adjacent gap at the forward end of each salient pole 11 such that facing magnetic poles have the same polarity with the magnetic pole touching the lateral part at the forward end of the salient pole 11 or the magnets are partially removed from that state and a winding is applied to the salient poles, and a rotor having n (n is a natural number other than 1) protrusions 21, where n/m does not become a natural number of 2 or less, i.e. pole teeth or magnetic resistance reducing parts provided oppositely to the salient poles 11.
Description
[technical field under the present invention]
What the present invention relates to is the reluctance motor of complete neotectonics and the magnetite that reluctance motor is used stator.
[existing technology]
As everyone knows, the conversion reluctance motor that needn't use the high price permanet magnet (below, be called the SR motor) (referring to technical literature 1) is arranged.This SR motor has the phase coil of stator and concentrated winding, when twining this phase coil, makes the opposed facing prominent utmost point present the N utmost point and the S utmost point respectively.The semiconductor mains switch that respectively communicated switches running.
Do not have phase coil on the gyrator of SR motor, generally the quantity of gyrator lack 2 situation than the number of magnetic poles of stator under, form the prominent utmost point, other combined method is still also arranged.That is to say that widely used is that 3 cameras use 6 stators, 4 gyrators, 4 cameras use 8 stators, 6 gyrators, but other combined method is also arranged.Because this SR motor is to produce the pulse current same period with phase current, so must detect the code signal of gyrator position.That is to say that the SR motor by pulse signal and this control method of semiconductor switch synchronization that makes the stator phase coil, makes the gyrator rotation by the transducer detecting signal of gyrator position.
The advantage of this SR motor is high efficiency running.In addition, itself and brushless DC motor are compared, find because the rotor of SR motor does not use Permanent magnet, so the SR motor is in the correspondence (preventing dispersing of magnetite) of high centrifugal force, the lifting of running efficiency, manufacturing cost aspect take advantage (with reference to technical literature 1).In the field of this SR motor, the not product of belt sensor (with reference to technical literature 1,2) has also appearred recently.
The bright inventor of this law is in order to reach the purpose of small-sized high rotating shaftization one step ahead, and having developed to possess has the two mixed type motor (stepping type motor) (with reference to Patent Document 3) of coil and permanet magnet.
Then, further launch basic ideas of the present invention, invented and possessed a plurality of magnetic deflection coils that the prominent utmost point of E font is arranged, and by configuration tubular magnetic between the prominent utmost point of E font, thereby the self-actuated type synchronous motor (with reference to Patent Document 4) of the energy efficiency that got a promotion.In addition, inventor of the present invention has also advised developing the mixing magnetite type DC motor (Patent Document 5) of pursuing further small-sized high rotating shaftization.
[technical literature] Nikkei machinery issue on February 3rd, 1997 No.499 P50
---61[SR motor obtains rapidly development the America and Europe]
[technical literature 1] spy opens 2001-309691 communique (summary book)
[technical literature 2] spy opens 2002-186283 communique (summary book)
[technical literature 3] spy opens 2000-150228 communique (summary book)
[technical literature 4] spy opens 2001-258221 communique (summary book)
[technical literature 5] spy opens 2002-247825 communique (summary book)
[inventing problem to be solved]
SR motor under the prior art so change apart from increasing in order to make, must make the air gap miniaturization because be to utilize the magnetic resistant function to drive the motor of rotation.Owing to the air gap minimization just can be reached make the purpose that has adopted the SR motor miniaturization that this principle makes, so be difficult to make this SR motor miniaturization.In addition, because the SR motor has the excessive tendency of easy vibration, can not be applicable to high performance electronic equipment.
As the wild Mr. of reed of one of inventor of the present invention, invent aforesaid mixed type magnetite, and further launched this mixed type magnetite, created the stepping type motor, self-actuated type synchronous motor, and mix magnetite type DC generator.
But, the expansion that motor is carried out not as succeed thinking.Its main cause is the stepping type motor of Patent Document 3,4,5, synchronous motor, and DC generator has adopted too special structure, and its manufacturing cost is too high.In addition, also have because structure is special, thus be difficult to launch, be difficult to prior art under motor, particularly small-sized DC motor is replaced.
In addition, inventors of the present invention have developed with 1 mixed type magnetite and have constituted 1 prominent utmost point, the mixed type magnetite of a plurality of same shapes is the circular motor that is configured, and on magazine, has delivered this invention ([WEDGE] P80-P81 in January of 20 distribution December in 2002).But, aspect motor, only launching the product that this mixed type magnetite is constituted, aspect vibration, can not satisfy the demand fully.In addition, when aspect motor, launching, must consider and how effectively utilize magnetic flux, and that the present invention does in this respect is also perfect inadequately.
The present invention is in order to address the above problem, provide a kind of and when miniaturization and reducing vibration, can suppress the rising of manufacturing cost, and can be easy to and prior art under the DC motor replace the reluctance motor of new structure.In addition, other invention is wished to provide to have promoted and is made the reluctance motor that utilizes the mixed type magnetite manufacturing efficient with stator, has reduced the magnetite of the reluctance motor of reluctance motor price with stator.
[technical scheme of the present invention]
In order to reach above-mentioned purpose, technical program of the present invention lies in, a kind of reluctance motor, it is the reluctance motor that obtains rotary-torque between stator and rotor by the magnetic resistance change rate that takes place, it comprises: the quantity of setting the prominent utmost point is 2m, and m is the natural number more than or equal to 1, between the adjacent slit of each prominent utmost point front end relative magnetic pole being set is homopolarity, and this magnetic pole links to each other with the front end side portion of the above-mentioned prominent utmost point amounts to 2m, perhaps, when the magnetite quantity that k is set between the slit that is not arranged at each prominent utmost point front end, (2m-k) individual magnetite is set, and on dashing forward extremely, applies stator with winding; With the rotor that is provided with convex portion, wherein, this convex portion is the magnetic opposing weakening portion of decay around the utmost point tooth that is provided with respect to the above-mentioned prominent utmost point or the magneto resistive ratio, and when the quantity of setting convex portion is n and n when being natural number beyond 1, n/m is any positive beyond 1 and 2.
Reluctance motor of the present invention can be an even number by the quantity that the prominent utmost point of stator is set, and obtains the good stator of mechanicalness balance.And, because magnetite is embedded between each prominent utmost point,, can obtain favorable mechanical balance more so stator is subcircular.By this structure, help reducing vibration.
In addition, reluctance motor of the present invention is because be relative in the same way embedding magnetite, so become the N utmost point by the excitatory prominent utmost point that is embedded between the magnetite N utmost point and the N utmost point that makes, the excitatory prominent utmost point that is embedded between the magnetite S utmost point and the S utmost point that makes becomes the S utmost point, make between the magnetic flux of magnetic flux when excitatory and magnetite and obtain strong cooperation relation, castering action is in epitrochanterian power.Therefore, can enlarge the air gap between stator and the rotor, reach the purpose that makes the reluctance motor miniaturization.
In addition, reluctance motor of the present invention because can make small-sized DC motor under its structure and the prior art and the structure of reluctance motor basic identical, just can not replace so need not improve manufacturing cost with small-sized DC motor.
In addition, the present invention is on the basis of above-mentioned reluctance motor, electric current is flowed, rotate and drive, so that the N utmost point of said magnetite and the prominent utmost point that is clipped in the N interpolar are when excitatory and become the N utmost point, the S utmost point of said magnetite and the prominent utmost point that is clipped in the S interpolar be when excitatory and become the S utmost point, and, form one group at least and be subjected to the extremely excitatory prominent utmost point of N and be subjected to the extremely excitatory prominent utmost point of S.
The present invention will be embedded in the prominent utmost point between the magnetite N utmost point and the N utmost point and carry out excitatoryly as the N utmost point, carry out excitatory as the S utmost point the prominent utmost point that is embedded between the magnetite S utmost point and the S utmost point.Therefore, the magnetic flux when excitatory can be flowed smoothly, simultaneously, make the strong cooperation relation of acquisition between the magnetic flux of excitatory magnetic flux and magnetite, castering action is in epitrochanterian power.Therefore, can enlarge the air gap between stator and the rotor, make reluctance motor can reach the purpose of miniaturization.
In addition, the present invention is on the basis of foregoing invention, and setting m is 2, and driving the number of phases is 4, and said each winding twines by same direction respectively, makes the sense of current that is flowing on each winding equidirectional always.
Reluctance motor of the present invention is made up of the 4 phase drive motors that contain 4 prominent utmost points.And because winding is rolled by same direction respectively, electric current generally flows to same direction, so can adopt simple structure, simple loop.
In addition, setting m is the integer more than or equal to 4, drives the number of phases more than or equal to 4.Like this, the prominent number of poles of stator reaches more than 8, and is 4 drivings mutually, so the influence of torque pulsation becomes minimum, has further reduced vibration.
In addition, the present invention can also detect the position of rotation of said rotor on above-mentioned reluctance motor basis, switches the electric current that is flowing on the said winding then.Like this, that is to say and adopt the conversion reluctance motor, control the electric current that is flowing in the winding by high level procedural design, can obtain can the smooth motor that rotates.And, as the method that detects rotor rotation position, can adopt the product that utilizes position detecting element materials such as transducer, and by detecting so-called approach sensor that the counter current that produces at winding and back electromotive force detect position of rotation etc.
And then the present invention sets m on above-mentioned basis be 3 and 3 multiple, and driving the number of phases is 3; Perhaps set m and be 2 and 2 multiple, driving the number of phases is 4, is used as the stepping type motor and turns round.Like this, even drive the number of phases seldom, also can use as motor.Thus, can enlarge scope, reach the purpose that reduces each parts price by the present invention's expansion.In addition, under 4 occasions that drive mutually, also can be as small-sized DC motor dual-purpose.
In addition, other are invented on the basis of the above, set m and be the integer more than or equal to 4, the driving number of phases more than or equal to 2 smaller or equal to m.This reluctance motor is because there are 2 groups of above basic numbers of phases, and the prominent number of poles of stator is more than or equal to 8, so when obtaining good electro permanent magnetic balance, also help the improvement of torque pulsation aspect and mechanical balance aspect.
In addition, a kind of reluctance motor of the present invention, it is the reluctance motor that obtains rotary-torque between stator and rotor by the magnetic resistance change rate that takes place, it comprises: formation is arranged on magnetite in the adjacent segment of a plurality of prominent utmost point front end of being made up of magnetic material, and join with the side portion of prominent utmost point front end, perhaps, when the magnetite quantity that k is set between the slit that is not arranged at each prominent utmost point front end, the formation of (2m-k) individual magnetite is set, simultaneously, be provided with the stator of the winding that is used for the excitatory above-mentioned prominent utmost point; With the rotor that is provided with convex portion, wherein, this convex portion is the magnetic opposing weakening portion of decay around the utmost point tooth that is provided with respect to the above-mentioned prominent utmost point or the magneto resistive ratio; And, the relict flux metric density of setting above-mentioned magnetite is a, the saturation flux density of the above-mentioned prominent utmost point that is made of magnetic part is b, with the relative area partly of above-mentioned rotor from the side-prominent part of above-mentioned prominent utmost point magnetite is W, the area of the part that contacts with the prominent utmost point of above-mentioned magnetite is Z, with (a/b) * Z * 1/3≤W that satisfies condition≤(a/b) * Z * 2, form the prominent utmost point of said stator.
This reluctance motor can effectively utilize the magnetic flux of prominent utmost point part, carries out the running of motor smoothly, promotes efficient.
And then, on the basis of the reluctance motor of foregoing invention, said rotor is the utmost point profile of tooth adult of tubular, be provided with n through hole that increases the magnetic opposing on the circumferencial direction of this utmost point dentation organizator, the part that each through hole is adjacent in a circumferential direction is as n magnetic opposing weakening portion.
Like this, can high efficiency, the manufacturing rotor of low price.In addition, can reduce the inertia of rotor, obtain the reluctance motor of reaction speed sensitivity.
In addition, a kind of reluctance motor of the present invention magnetite of stator, it is the magnetite that obtains the reluctance electric machine stator of rotary-torque between stator and rotor by the magnetic resistance change rate that takes place, it comprises: the 2m of a rounded configuration cylindrical portion, wherein m is the natural number more than or equal to 1, with the circular connecting portion that is connected with a side of this cylindrical portion; Said each cylindrical portion is, a side that makes the opposite face of adjacent cylindrical portion is that the N utmost point, opposite side are the magnetite of the reluctance motor that is magnetized for homopolarity of the relative part of the S utmost point and adjacent cylindrical portion with stator.
The magnetite of this invention can make and become by the opposed facing part in space that magnetized parts carry out incorporate installation under the homopolarity situation, and the efficiency of operation that magnetite is embedded between the prominent utmost point of stator is increased, and reduces manufacturing cost.
[specific embodiments of the invention]
Below, with reference to accompanying drawing reluctance motor of the present invention is described.At first, with reference to Fig. 1～Fig. 8, embodiment 1 is described.
This reluctance motor has the advantage part of prior art SR motor and the advantage of mixed type magnetite concurrently, and be not simply the two to be made up, but by distributed magnet, the prominent number of poles of stator, the flow direction of electric current etc., the particularly suitable configuration of magnet, can easily aspect vibration, improve, and can replace with the small-sized DC motor of prior art.
The reluctance motor of embodiment 1 has used SR motor and mixed type magnetite as mentioned above, is called the HB-SR motor hereinafter.As depicted in figs. 1 and 2, this HB-SR motor 10 (5 phase motor just) is provided with stator 1, rotor 2, bracket 3, encoder 4, framework 5, it is that height H is that 30mm, body diameter are the miniature motor of 79mm.
The stator material that forms the prominent utmost point 11 of stator 1 is high magnetic permeable material, be that the soft magnetic material and the high purity iron of 2.15 teslas constitutes promptly by saturation flux density, central authorities at the connecting portion 14 that connects each prominent utmost point 11 are provided with thin plate, and establish the connecting hole 15 that can insert carriage 3 on this thin plate.In addition, this thin plate forms stator core by lamination.The mechanical angle (grooving angle) that forms each the prominent utmost point 11 front end width of stator 1 is 24 degree.The 11 side width of the prominent utmost point that are wound with winding 13 are about half of prominent utmost point front end width.
The axial length of magnetite 12 equates with the axial length of stator core that as shown in Figure 1 radical length equates with the radial width of the prominent utmost point 11 front ends.At this, set the radical length of magnetite 12, just the radial width of the prominent utmost point 11 front ends is L1; With the ledge of the prominent utmost point 11 in magnetite 12 sides, just relative with rotor 2 partial-length is L2; L1: L2=1: 0.6 (as shown in Figure 2).In addition, this L1 and L2 are in all difference counterparts of HB-SR motor, and length all is certain.And, the relict flux density of setting magnetite 12 is a, the saturation flux density of the prominent utmost point 11 is b, is W with the prominent utmost point 11 at the relative part area of the rotor of magnetite 12 side-prominent parts, and the area of the part that contacts with the prominent utmost point 11 of magnetite 12 is Z, like this, the words of (a/b) * Z * 1/3≤W if the stator 1 that forms satisfies condition≤(a/b) * Z * 2, when it being reached capacity by the winding 13 excitatory prominent utmost points 11, just can effectively utilize the magnetic flux of magnetite 12, become reluctance motor with good efficiencies.
In this embodiment, because the a=1.20 tesla, b=2.15 tesla, magnetite 12 equate with the axial length of stator core, so can guarantee W=L2, Z=L1.Therefore, above-mentioned formula then becomes 0.19 * L1≤L2≤1.12 * L1, if L1=1 then becomes 0.19≤L2≤1.12, the front end of the prominent like this utmost point 11 is from the width of magnetite 12 side-prominent parts, being that 0.19 times to 1.12 times of the prominent utmost point 11 front end radial width is for good.And, consider and will use magnetite 12 more effectively, preferably (a/b) * Z≤W≤(a/b) * Z * 1.5.
The rotor raw material that form the convex portion 21 of rotor 2 are high magnetic permeable material, i.e. the thin plate that constitutes by the pure iron of soft magnetic material, and this thin plate forms rotor core by lamination.The mechanical angle of each convex portion 21 of rotor 2 be 24 the degree, between each convex portion 21 be spaced apart 36 the degree.In addition, play the width W till the magnetic floppy disc loading end 22a of lining 22 from Fig. 1 top be 18.5mm to framework 5.
The connection of each winding 13 as shown in Figure 3, conversion and control portion 31 is made of microcomputer, portion preserves the conversion opportunity of the electric current that the conversion of signals that detects according to encoder 4 flows to winding 13 and the program of decision current waveform within it.As shown in Figure 3, the electric current in each winding 13 is controlled to flow to certain direction usually.
Shown in Figure 4 is the current waveform that flows through each winding 13.As shown in Figure 4, current spikes increases, and behind the elapsed time Δ T1, the maximum of electric current reaches LA; Between time tA～Δ t, electric current is being kept maximum LA.Reduce rapidly behind this strand electric current elapsed time point tA, drop to below 1/3 of maximum LA at time point Ta+ Δ t2 place, reduce at leisure then, reduce to 0 at time point 2 * tA place.
The timeliness that shown in Figure 5 is flows through the electric current of each winding 13 changes, electric current total and switch step and magnetic flux mobile in the stator 1 when each step.And, all corresponding from Fig. 5 to Fig. 8 with the width of prominent utmost point 11a～11j, divide the zone that U～Z, A～D are arranged.
At first, at winding 13a, 13f stream electric current (T16 among Fig. 5) is arranged.At this moment, electric current flows and makes prominent utmost point 11a, 11f be antipole.In the present embodiment, excitatory to make prominent utmost point 11a be the N utmost point, and excitatory to make prominent utmost point 11f be the S utmost point.Then, at the T1 time point, electric current begins to flow to winding 13c, 13h, at this moment, also has electric current to flow at winding 13a, 13f.Then, to (=step S1) between the T2, in winding 13a, 13c, 13f, 13h, there is electric current to flow at time point T1.
Then, at time point T2, cut off the electric current of winding 13a, 13f, simultaneously, electric current begins to flow to winding 13e, 13j.At this moment, also there is electric current to flow at winding 13c, 13h.Afterwards, at time point T3, cut off the electric current of winding 13c, 13h, simultaneously, electric current begins to flow to winding 13b, 13g.
As mentioned above, cutting off electric current successively in the streaming current successively.The step S2 of Fig. 5 (B) is equivalent to time point T2～T3, and step S3 is equivalent to time point T3～T4, and step S4 is equivalent to time point T4～T5, and step S5 is equivalent to time point T5～T6.
In Fig. 3, clearly represented by each winding 13a～13j to each prominent utmost point 11a～11j carry out excitatory magnetic pole (N, S).Like this, in the present embodiment, the sense of current that is flowing in each winding 13 all is certain generally for each winding, generally also is certain by the excitatory magnetic pole that forms.And, be the mutual configuration of NS by the excitatory magnetic pole that forms.
In addition, as the current pulsation of torque pulsation reason, shown in [total] among Fig. 5 like that, be the parallel shape that does not fluctuate up and down basically, can not produce torque pulsation yet.
Then, the spinning movement by the HB-SR motor 10 that constitutes is as mentioned above described, simultaneously flowing of magnetic flux also illustrated.
Magnetic flux flows in time point T1～T2 scope that shown in Figure 6 is among Fig. 5.In addition, state shown in Figure 6 primary position as rotation is described.At this, numeral 1.～10. is corresponding with the utmost point 11a～11j that dashes forward.As shown in Figure 6, at time point T1～T2, electric current flows in winding 13a (1.), winding 13c (3.), winding 13f (6.) and winding 13h (8.), at this moment, flowing at winding 13a has electric current to make prominent utmost point 11a (1.) become the N utmost point, and flowing at winding 13c has electric current to make prominent utmost point 11c (3.) become the N level; Flowing in winding 13f and winding 13h has electric current, makes prominent level 11f (6.), 11h (8.) become the S utmost point.
By excitatory, the magnetic flux that is flowing in the stator 1 flows to prominent utmost point 11a (1.) by prominent utmost point 11h (8.), flows to prominent utmost point 11c (3.) by prominent utmost point 11f (6.) simultaneously.Like this, the excitatory utmost point 11h that dashes forward that makes becomes the S utmost point, and prominent utmost point 11a becomes the N utmost point, and prominent utmost point 11f becomes the S utmost point, and prominent utmost point 11c becomes the N utmost point.
Just with the relation of rotary speed, when the configuration relation between rotor 2 and the stator 1 is in as shown in Figure 6 state, current waveform is the state during overtime point T2, but for convenience of explanation, with setting state shown in Figure 6 for being about to before the time point T2.
Fig. 6 has also shown the magnetic flux that is produced by magnetite 12 except having shown the magnetic flux by above-mentioned excitatory generation.Comprise the magnetic flux that is produced by magnetite 12, all magnetic fluxs are balanced configurations, are in good magnetic poised state, and such poised state is identical with other ground states, also can keep good magnetic poised state often, and rotor 2 is rotated.
Under state as shown in Figure 6, between prominent utmost point 11c (3.) and the 21b of convex portion, trickle skew is arranged, between prominent utmost point 11h (8.) and the 21e of convex portion, same trickle skew is arranged also.These two parts are positions of obtaining point of safes, that is to say prominent utmost point 11c (3.) be in the position relative fully and prominent utmost point 11h (8.) with the 21b of convex portion be in the relative fully position of the 21e of convex portion on, locomotivity works.On the other hand, because prominent utmost point 11a (1.) is fully relative with the 21a of convex portion, the utmost point 11e (6.) that dashes forward is relative fully with the 21d of convex portion, so these two parts are in stable status.
Therefore, rotor 2 integral body are subjected to the power of the direction of arrow shown in the periphery of Fig. 6 rotor 2, to be ready moving in the direction of the clock in Fig. 6.If keep the excitatory state among Fig. 6,2 of rotors can rotate.Be further rotated rotor 2, relative part then begins to be offset to some extent fully, works with regard to the power that has reverse rotation in this part.Before the power opposite with the direction of arrow began effect, switching flows the winding 12 of electric current.
Fig. 7 has shown the state after Fig. 6, i.e. the flowing of magnetic flux after the time point T2.In Fig. 7, interdicted the electric current that flows to winding 13a (1.) and winding 13f (6.), replace with current direction winding 13e (5.) and winding 13j (10.).This sense of current is be the N utmost point with prominent utmost point 11e (5.), and the utmost point 11j (10.) that dashes forward is the S utmost point.So, then flowing to prominent utmost point 11e (5.) from the magnetic flux in the stator 1 of prominent utmost point 11h (8.), magnetic flux flows to prominent utmost point 11c (3.) by prominent utmost point 11j (10.).
Compare with Fig. 6, under the state of Fig. 7, the position relation of prominent utmost point 11c ((3)) and the 21b of convex portion, prominent utmost point 11h (8.) and the 21e of convex portion and the flowing of magnetic flux that is flowing in wherein all do not have to change, and make rotor 2 begin to work in the power of direction same as shown in Figure 6 (clockwise direction) rotation.On the other hand, by the switching of electric current, begin the excitatory utmost point 11e (5.) that dashes forward that makes and become the N utmost point, prominent utmost point 11j (10.) becomes the S utmost point, make the 21c of convex portion be in stable position thereby set, make the 21f of convex portion be in stable position with respect to prominent utmost point 11j (10.) with respect to prominent utmost point 11e (5.).Therefore, the effect of 4 places on rotor 2 has its power along direction shown in the arrow (clockwise direction among Fig. 7) rotation that makes.
Then, carry out the switching of electric current by time flow chart shown in Figure 5.In Fig. 8, conclude mobile and each switching state mutually that has shown by the magnetic flux of excitatory generation.S1～S5 among Fig. 8 is equivalent to the 1st and drives～the 5 driving mutually mutually.In addition, S1～S5 is equivalent to corresponding switch step.
As shown in Figure 8, prominent utmost point 11a (1.) is subjected to excitatory when the 1st drives (S1) mutually and the 5th drives (S5) mutually, becomes the N utmost point this moment.Magnetic flux by these N utmost point directive rotor 2 sides becomes one directive rotor 2 sides with the magnetic flux that penetrates from the N utmost point relative with both sides magnetite 12a, 12b.Therefore, act on the power of rotor 2 sides, the magneticaction that is created in prominent utmost point 11a (1.) when only excitatory is compared, and rises significantly.
Prominent utmost point 11b (2.) is subjected to excitatory when the 3rd drives (S3) mutually and the 4th drives (S4) mutually, becomes the S utmost point this moment.By the magnetic flux of rotor 2 these S utmost points of the side directive also directive S utmost point relative with both sides magnetite 12b, 12c.Therefore, can obtain than the bigger magnetic flux of magnetic flux that flows into.So, act on the magneticaction that the power of rotor 2 sides is created in prominent utmost point 11b (2.) when only excitatory and compare, rise significantly.
Other prominent utmost point 11c (3.), 11e (5.), 11g (7.), 11i (9.) and prominent utmost point 11a (1.) equally by excitatory be the N utmost point, its effect is also identical.On the other hand, prominent utmost point 11d (4.), 11f (6.), 11h (8.), 11j (10.) and prominent utmost point 11b (2.) too by excitatory be the S utmost point, its effect is identical.
The HB-SR motor 10 of present embodiment 1, the prominent number of poles of its stator 1 is 10, is 5 times (even numbers) of 2, so obtained the favorable mechanical balance.In addition, driving the number of phases is 5 phases, and this 5 has 2 groups mutually, has good magnetic balance.In addition, magnetite 12 is arranged,, can not vibrate so the mechanical balance performance is better because between each prominent utmost point 11, embed.
When the quantity of the convex portion (utmost point tooth) 21 of rotor 2 is 6, the quantity of convex portion 21 is n when (being not equal to 1 natural number) because n/m (m is the natural number greater than 1, be prominent number of poles 1/2) be 6/5=1.2, can not draw 1 and 2 result, so can be rotated smoothly.
Each winding 13 all is to a direction, both by the root side direction front end of the prominent utmost point 11 or twine in the opposite direction, and is that magnetic pole is concentrated and twined; It also is only to a direction that electric current in each winding 13 flows.Therefore, the winding operation becomes simply, so and because be that the cause of changing has also been simplified loop structure.
In addition, embed the prominent utmost point 11 of magnetite 12 as mentioned above,, become homopolarity,, enlarge the air gap between rotor 2 and the stator 1, realize the miniaturization of motor so can increase substantially the power that acts on rotor 2 with the magnetic pole of relative magnetite 12 owing to be subjected to excitatoryly.And, with regard to the relation of a, the b of previous definition, W, Z, suiting in the scope of (a/b) * Z≤W≤(a/b) * Z * 1.5, i.e. 0.56≤0.6=W≤0.84 so more helps effectively using the magnetic flux of magnetite 12.
In addition, because after can detecting the position of rotation of rotor 2 by encoder 4, switch the electric current that flows through winding 13, so rotor 2 is able to smooth rotation.In addition, because encoder 4 is optical profile types, so do not allow to be subject to the influence of external magnetic field and motor self-field.
This HB-SR motor 10, the common direction of electric current of the winding 13 that flows is certain, and the current spikes that flows through as shown in Figure 4 increases and forms the waveform that stretches, and the favorable mechanical balance is arranged.In addition, this HB-SR motor 10 has good magnetic balance, changes less apart from pulsation.And, with single 5 mutually motor compare, promoted power.
Then,, the HB-SR motor of embodiment 2 is described to Figure 11 according to Fig. 9.
The HB-SR motor 40 of embodiment 2 is identical with the structure of the HB-SR motor 10 of embodiment 1, and different only is the current conversion that flows through winding 13.Specifically, be by 5 phase motor, just 1-2 phase excitatory drives.Thus, below only its conversion is described, in the explanation of omitting, utilize prosign to represent at this parts identical with embodiment 1 to structure.
At first, among the switch step S 1, stream has electric current in winding 13a (1.) and winding 13f (6.), and the excitatory utmost point 11a (1.) that dashes forward that makes becomes the N utmost point, and prominent utmost point 11f (6.) becomes the S utmost point; Then, when continuation is excitatory, make the middle stream of winding 13c (3.) and winding 13h (8.) that electric current be arranged, the utmost point 11c (3.) that will dash forward is as the N utmost point, and prominent utmost point 11h (8.) is as the S utmost point.In this switch step S1, stream has electric current among 4 winding 13a, 13c, 13f, the 13h.In the switch step S2 that follows, cut off the electric current that flows to winding 13a, 13f, only make current direction winding 13c (3.), 13h (8.). under this state, only in winding 13c, 13h, electric current is arranged.Then, press Fig. 9 and order shown in Figure 10, switch current.
This HB-SR motor 40 employed current waveforms as shown in figure 11.That is to say, be slowly to increase at time point 0 electric current till the time point tA, keeps its maximum current from time point tA to the time point 2tA, slowly reduces to electric current between the time point 3tA at time point 2tA, and 3tA is kept to 0 at time point.Because be such current waveform,, there is not torque pulsation substantially so the aggregate value of electric current is an equalization.And current waveform can be a stretching waveform shown in Figure 4, also can be square waveform.
The HB-SR motor 40 of embodiment 2 has identical action effect with the HB-SR motor 10 of embodiment 1.And, at the switch step that embodiment 2 is adopted, can there be S12, S23, S34, S45, these 5 steps of S51, only adopt 5 steps shown in Figure 12.Like this, adopt square waveform, that is to say the driving of adopting the step-by-step motor formula as current waveform.
In addition, switch step also can be as shown in Figure 13.That is to say that the excitatory prominent utmost point in each step only is 1, flowing on the regulation winding 13 of stator 1 has electric current, and the N utmost point, the S utmost point can alternately be found.Under the situation of Figure 13, be 10 phase motor, though compare with other practical example, deterioration to some extent aspect the magnetic balance can be kept other useful effect.
Then,, the HB-SR motor 50 of embodiment 3 is described to Figure 22 according to Figure 14.
This HB-SR motor 50 is so-called 4 phase motor, includes: be provided with 4 prominent utmost points 51 (stator 1A of 51a～51d) and be provided with (the rotor 2A of 54a～54c) of 3 convex portions (utmost point tooth) 54.Each prominent utmost point 51a～51d has the circular arc of 60 degree respectively, is the crosswise configuration.Stator 1A constitutes by embed magnetite 52 between each prominent utmost point 51, is wound with winding 53 in the root side of each prominent utmost point 51, thinner part.And whole shape is with shown in Figure 1 identical.
(section of 52a～52d) is the trapezoidal corner post shape that is for 4 magnetites 52.And in Figure 22, it is trapezoidal that the shape of magnetite 52 not only has section at Figure 17, the outer formation curved surface of the utmost point 51 of dashing forward together in addition, but in fact section is a square.Certainly, as shown in the figure, also can be shape formation curve form, or section be square along the prominent utmost point 51.With the prominent utmost point 51 contacted parts of each magnetite 52, it is the N utmost point that magnetization makes the one side, and opposite side is the S utmost point, and simultaneously, the radical length of its contact portion equates with the radial width of the prominent utmost point 51.This magnetite is neodymium magnetite (Nd-Fe-B), also can be that tin cobalt magnetite (Sn-Co) waits other the rare earth element class magnetite or the magnetite of ferrite etc.This point is identical with the magnetite 12 of embodiment 1.In addition, the axial length of magnetite 52 equates with the axial length of the stator core of stator 2A, and the side integral body of the whole prominent utmost point 51 with stator core in the side of magnetite 52 is close to and is joined.The width of each magnetite 52 is 30 degree.
Each winding 53a～53d concentrates to twine separately, by forming to prominent utmost point front end winding around from connecting portion 14 sides.The stator core that forms the prominent utmost point 51 and connecting portion 14 etc. is to be that one piece of element silicon steel plate of 2.0 teslas constitutes by saturation flux density, and is same with the stator core of the HB-SR motor 10 of embodiment 1, also can be formed by pure iron thin plate lamination.And, can also form stator core by the element silicon steel plate is carried out lamination.
Among this stator 1A, the relict flux density of magnetite 52 is 1.2 teslas, the saturation flux density of the prominent utmost point 51 is 2.0 teslas as mentioned above, from the radical length of the side-prominent part of the prominent utmost point 51 front end magnetites 52 is L1, the circumferential lengths of the face of facing rotor 2A of this ledge is for being L2, i.e. L1: L2=1: 1.2.In addition, in all counterparts of HB-SR motor 50, the length of L1, L2 all equates.
The iron core of rotor 2A is overlapped to form by the thin plate of permalloy (Fe-Ni alloy).The convex portion 54 of rotor 2A uniformly-spaced constitutes, and span is 60 degree.The core material of rotor 2A can be other soft magnetic materials such as pure iron, element silicon steel plate.
This rotor 2A compares with embodiment 2 and their version with embodiment 1, and different is is provided with interpole 55 (55a～55c).This interpole 55 is arranged on a side of convex portion 54 front ends, covers in Figure 14 to the scope of convex portion 54 right sides, 30 degree, also can take other numerical value, for example the arbitrary value in 15 degree～29 degree.This interpole 55 is formed with 1 or 2 in the thin plate central authorities that lamination forms, and the side of convex portion 54 front ends is outstanding from the most close stator 1A side, gradually away from stator 1A, and be formed with certain gradient.By interpole 55 is set, rotor 2A is rotated glibly.
Figure 15 and Figure 16 shown magnetic flux flow to and the switch step (corresponding relation between the S1～S4).In addition, Figure 17 has shown the magnetic flux state that flows in stator 1A and rotor 2A to Figure 21.
The 1st when driving mutually (=S1), flowing in winding 53a, 53d has electric current, and the magnetic flux in the stator 1A flows to the utmost point 51a (with reference to Figure 17) that dashes forward by prominent utmost point 51d.So, be embedded in prominent utmost point 51a between the N utmost point of the N utmost point of magnetite 52a and magnetite 52b by the excitatory N of the becoming utmost point, be embedded in prominent utmost point 51d between the S utmost point of the S utmost point of magnetite 52a and magnetite 52d by the excitatory S of the becoming utmost point.For rotor 2A, by the relation that staggers that exists between prominent utmost point 51d and the 54c of convex portion, effect has the power of the direction of arrow shown in Figure 17 (clockwise direction among Figure 17).
Then, the 2nd when driving mutually (=S2), keep the S utmost point of prominent utmost point 51d, become the N utmost point, streaming current in winding 53c, 53d in order to make prominent utmost point 51c.The magnetic flux state of this moment as shown in figure 18.Effect has the power that rotor 2A is rotated in a clockwise direction between prominent utmost point 51d and the 54c of convex portion, on the other hand, because do not have overlapped part fully between prominent utmost point 51c and the 54b of convex portion, so can not produce the power that acts on rotor 2A at these two parts.But, because the existence of interpole 55b, by the magnetic flux of prominent utmost point 51c directive rotor 2A side inside by interpole 55b income rotor 2A, thereby produce make its with respect to rotor 2A to right handed power.
By this power, rotation 30 degree become state shown in Figure 19 on the clockwise direction of rotor 2A in each figure.So, become and the 3rd drive mutually (=S3), flowing among winding 53b, the 53c has electric current, and the magnetic flux of stator 1A inside flows to 51c (with reference to Figure 20) by prominent utmost point 51b.At this moment, same with state shown in Figure 180, by active force between prominent utmost point 51d and the 54b of convex portion and the active force between prominent utmost point 51b and the interpole 55a, rotor 2A continues it and rotates in the clockwise direction.
By this rotation, rotor 2A rotate again 30 when spending state as shown in figure 21.Then, become and the shown in Figure 22 the 4th drive mutually that (=S4) state continues to produce and makes rotor 2A to right handed power.As described above, rotor 2A continues rotation.
The HB-SR motor 50 of present embodiment 3 because the prominent number of poles of stator 1A is 4, is 2 times (even numbers) of 2, so have the favorable mechanical balance.In addition, because the quantity of the prominent utmost point is 4 and is 4 drivings mutually that each winding 53 twines to same direction respectively, electric current flows to same direction, and mechanical structure is simple, loop structure is simple so can make.
In addition,, can reach the smooth and effective purpose of using magnetic flux of rotation, become the motor that good efficiencies is arranged by the setting of interpole 55.As mentioned above, because the prominent utmost point 51 that is embedded in magnetite 52, makes itself and the magnetic pole homopolarity of relative magnetite 52 by excitatory, so can increase substantially the power that acts on the rotor 2A, enlarge the air gap between rotor 2A and the stator 1A, reach the purpose of motor miniaturization.
And then, because be after detecting the position of rotation of rotor 2A by encoder 4, switch the electric current that is flowing in winding 53, so rotor 2A can successfully rotate.In addition, because encoder 4 is optical profile types, so do not allow to be subject to the influence of external magnetic field and motor self-field.
Below, describe according to the HB-SR motor 60 of Figure 23～27 couple embodiment 4.
This HB-SR motor 60 is 4 phase drive motors, includes: be provided with the stator 1B of 8 prominent utmost point 61a～61h and be provided with the rotor 2B of the 64a～64f of 6 convex portions (utmost point tooth).Each prominent utmost point 61a～61h has the radian of 30 degree respectively, and is uniformly-spaced to dispose.The structure of stator 1B is to embed magnetite 62 between each prominent utmost point 61, twines winding 63 in the part that the root side of each prominent utmost point 61 is thinner.And whole shape is with shown in Figure 1 identical.
8 magnetite 62a～62h are that width is 15 degree, and the cross section is foursquare prism, but in the drawings, its shape is not square, but are curve form along the shape of the prominent utmost point 61.This is that it is square still being actually section owing to be to be curve form in the making of accompanying drawing.But as shown in the figure, magnetite 62 also can be that the shape of the prominent utmost point 61 in edge is curve form.Being geomagnetic into a side with the prominent utmost point 61 contacted parts of each magnetite 62 is the N utmost point, and opposite side is the S utmost point.In addition, the axial length of each magnetite 62 equates with the axial length of stator 1B core portion, and the whole side integral body with the prominent utmost point 61 front ends in the side of magnetite 62 is close to and is joined.This magnetite is neodymium magnetite (Nd-Fe-B), and its relict flux density is 1.10 teslas, but also can use tin cobalt magnetite (Sn-Co) to wait other the rare earth element class magnetite and the magnetite of ferrite etc.
Each winding 63a～63h concentrates to twine separately, is to be twined and formed by the prominent utmost point front of connecting portion 14 side direction with coil.And form the stator core of the prominent utmost point 61 or connecting portion 14 etc., and be to be that the element silicon steel plate of 1.9 teslas constitutes by many pieces of saturation flux densities, identical with the stator core of the HB-SR motor 10 of embodiment 1, also can use by pure iron thin plate lamination to form.
The length L 1 of the promptly prominent one by one utmost point 61 of this HB-SR motor 60, the radical length of magnetite 62 and magnetite 62 contact portions, with the magnetite 62 of the prominent utmost point 61 side-prominent, be 1: 0.8 corresponding to the ratio of the width L2 of rotor 2B part.Thus, undertaken by 61 pairs of windings of each prominent utmost point 63 energising excitatory, by the magnetic flux of excitatory generation during by the prominent utmost point 61, can make magnetite 62 almost all flux interaction in rotor 2B, and the ledge of magnetite 62 sides by the prominent utmost point 61.
The iron core of rotor 2B is to be that the element silicon sheet metal of 1.9 teslas forms by overlapping saturation flux density.Convex portion 64 width separately of rotor 2B is 30 degree, and uniformly-spaced configuration mutually.The core material of rotor 2B can be other soft magnetic materials such as pure iron, permalloy.
This rotor 2B is identical with embodiment 3, is provided with interpole 65 (65a～65f).This interpole 65 is arranged on a side of convex portion 54 front ends, covers in Figure 23 to the scope of convex portion 64 right sides, 15 degree, but also can adopt other numerical value, for example the arbitrary value in 7～14 degree.This interpole 65 is formed with 1 piece or 2 pieces in the thin plate central authorities of lamination, and the most outstanding near stator 1B from convex portion 64 front end sides, and is linearly gradually away from stator 1B, and the gradient of certain inclination is arranged.
By interpole 65 is set, rotor 2B successfully.And, also can not the gradient of this interpole 65 or interpole 55 the sort of linearities, but the circular outstanding gradient, the gradient of perhaps curved shape indent.
Figure 24 and Figure 25 have shown the flow direction of magnetic flux and the switch step (corresponding relation between the S1～S4).In addition, Figure 26 and Figure 27 have shown the magnetic flux state that flows in stator 1B and rotor 2B.About the concrete running of this HB-SR motor 60, in this description will be omitted,, the running of excitatory variation or rotor 2B turns round but being HB- SR motor 10,40,50 identical thinkings according to embodiment 1～3.
Then, with reference to Figure 28～30.HB-SR motor 70 to embodiment 5 describes.
This HB-SR motor 70 is 3 phase drive motors that the stator 71 of formation shown in Figure 28 is housed, and is again the motor that has brush that comes switch current by brush and commutator simultaneously.Commutator 72 is with rotor (omit in the drawings and show) rotation.This commutator 72 is planar structures, and brush 73,74 contacts with commutator 72, and this commutator 72 and brush 73,74 constitute switch control part 31.
The configuration relation of winding and magnetite is identical with above-mentioned other embodiment, no longer describes at this.And the quantity of the prominent utmost point is 6, and the convex portion of rotor (omit in the drawings and show) can be any number in 2,4,5, even can be more than 7.
The 1st when driving mutually (=S1), being wrapped in has electric current to flow in the winding on each prominent utmost point U, X, so that the magnetic flux in the stator 71 flows to the prominent utmost point that is equivalent to zoning X (below, become prominent utmost point X) by the prominent utmost point that is equivalent to zoning U (below, be called prominent utmost point U).This state is observed from the part of commutator 72, as shown in figure 29.That is to say that the brush 73 of a representative contacts with the U field of commutator 72, the brush 74 of β representative contacts with the X field of commutator 72.
The U field of commutator 72 is connected with the winding of prominent utmost point U, by making in the winding of the prominent utmost point U of current direction with contacting of brush 73, thereby makes prominent utmost point U become the S utmost point.The X field of commutator 72 is connected with the winding of prominent utmost point X, by making in the winding of the prominent utmost point X of current direction with contacting of brush 74, thereby makes prominent utmost point X become the N utmost point.So, the magnetic flux flow direction shown in the arrow in Figure 28 in the stator 71.
The 2nd driving mutually (=S2), the direction of magnetic flux flow S2 shown in the arrow in pressing Figure 28.That is to say, in the rotor rotation, the also rotation of the direction shown in the arrow in Figure 29 of commutator 72, brush 73 contacts with the Y field, and brush 74 contacts with the V field.So the prominent utmost point that is equivalent to zoning Y is the S utmost point by excitatory, the prominent utmost point that is equivalent to zoning V is by the excitatory one-tenth N utmost point.
Below, according to Figure 31,32 and Figure 14～16, the HB-SR motor 80 of the embodiment of the invention 6 is described.
This HB-SR motor 80 is the products by the switch that the prominent number of poles that brush switches embodiment 3 is 4, convex portion quantity also is 44 phase drive motors.Therefore, the configuration relation of the convex portion 54 of the configuration relation of the prominent utmost point 51, magnetite 52 or winding 53 and rotor 2A is identical with embodiment 3.In addition, the formation of brush is identical with the brush 73,74 of embodiment 5.
Be located at X field and V field, the U field in interior week and the W field of periphery with the become one commutator 81 of rotation of rotor 2A.And the switching part in periphery and interior week is 90 and spends the configuration of staggering.Brush 73 contacts with the outer peripheral portion (X field and V field) of commutator 81, and brush 74 contacts with the interior circumferential portion (U field and W field) of commutator 81.
The 1st when driving mutually (S1), and brush 73 contacts with the X field of commutator 81, and winding 53d then has electric current to flow, and prominent utmost point 51d (being equivalent to zoning X) is the S utmost point by excitatory.In addition, brush 74 contacts with the U field, and winding 53a then has electric current to flow, and prominent utmost point 51a (being equivalent to zoning U) is the N utmost point by excitatory.So, in stator 1A, be formed with the magnetic flux shown in the arrow S1 among Figure 15 (flowing to the magnetic flux of prominent utmost point 51a by prominent utmost point 51d).
Then, by the rotation of commutator 81, brush 74 contact W fields.Therefore, flowing in winding 53c has electric current, and prominent utmost point 51c (being equivalent to zoning W) is the N utmost point by excitatory.Therefore, in stator 1A, be formed with the magnetic flux shown in the arrow S2 among Figure 15 (flowing to the magnetic flux of prominent utmost point 51c by prominent utmost point 51d).
Commutator 81 continues rotation, and brush 74 switches to the U field by the W field.Thus, prominent utmost point 51a once more by excitatory be the N utmost point, the magnetic flux in the stator 1A is by the prominent utmost point 51b flow direction utmost point 51a (with reference to arrow S4 among Figure 15) that dashes forward.Like this, by with rotation and the commutator 81 of rotor 2A, can switch the electric current that is flowing in the winding 53, make rotor 2A continue rotation.
The HB-SR motor the 70, the 80th of embodiment 5 and embodiment 6 is provided with the motor of the charged brush of plane commutator 72,81, tool slimming, the advantage that instantaneous discharge is few.In addition, same with other HB- SR motor 10,40,50,60, be not rivet.And, can not plane as commutator, also can adopt general axialmode is cartridge type (being arranged on the axial structure on every side of rotating shaft) one by one.
Below, describe according to the reluctance motor 90 of Figure 33,34 couples of embodiment 7.
This reluctance motor 90 both can be used as step-by-step motor and had used, and also can be used as small-sized DC motor and use, be the dual-purpose type motor, be 4 internal gear motors that drive mutually.Reluctance motor 90 is provided with stator 1C, rotor 2C, 91,2 bearing support shells 92 of 2 bearing portions, shell 93.The external diameter Φ 1=15mm of this reluctance motor 90, height H 1=13mm.But height H also can be set to 6mm, is flea-size motor.
The structure of the stator 1B of the HB-SR motor 60 of stator 1C and embodiment 4 is basic identical, and different is the central authorities that stator 1B is arranged on rotor 2B, and stator 1C is arranged on the periphery of rotor 2C.Therefore, in the following description, with HB-SR motor 60 corresponding parts, employed symbol in the time of will utilizing explanation HB-SR motor 60.
In addition, stator 1C is to be that the element silicon sheet metal more than 8 layers of 1.8 teslas constitutes by saturation flux density.And, when height H 1 is the 6mm left and right sides, can adopt the sheet metal about 3 layers or 4 layers.In addition because can dual-purpose be stepping type motor and small-sized DC motor, so the ratio of its front end width W 1 and magnetite width W 2 be recommended as 1: 1/2～1: 1/4.As mentioned before, the ratio of L1 and L2 all is 1: 0.35 under all occasions.
Then, the HB-SR motor 100 according to Figure 35～38 pair embodiment of the invention 8 describes.
This HB-SR motor 100 is pump type motor that motor is used as pump.HB-SR motor 100 is provided with: 3 layers of stator 101 of bobbin structure, 101 relative with stator, be arranged on the spiral type rotor 102 that stator 101 central authorities have the pump blade effect concurrently, surround the shell 103 of rotor 102, import the ingress pipe 104 of object liquid, the discharge pipe 105 of drain.
The space of rotor 102 is by shell 103 and the extraneous blocking of being made up of concavity shell body 103a and lid 103b.Rotor 102 is supported by the bearing 106,107 at two ends.In the space of rotor 102--be to inject liquid in the columniform space.
2 annular resin portions 108 that stator 101 is provided with 3 the stator formation 101a of portion, 101b, 101c and separates each stator formation 101a of portion, 101b, 101c.Each stator formation 101a of portion, 101b, 101c (below, designate is 101a), be provided with as shown in figure 36: by the circular port 111 that is concavity and by the excitatory N utmost point that constitutes for the utmost point tooth 112 of the N utmost point and with pure iron with stator 113, with whole flat ringwise circular port 114 is arranged and is the utmost point tooth 115 of the S utmost point and the S utmost point usefulness rotor 116 that constitutes with pure iron, and 2 circular-arc magnetites 117,117 by excitatory.And, as shown in figure 35, at the N utmost point with stator 113 and the S utmost point with between the stator 116, be provided with 3 and comprise and be rolled into columned coil at interior bobbin winding 118.
And utmost point tooth the 112, the 115th is 180 degree balanced configurations, and it is to constitute by the radially outstanding root 122 of utmost point tooth 112,115 with from the portion that extends axially 121 that root 122 axially-extendings are stretched out.L11 shown in the preamble (L12) and the ratio from root 122 edges along the outstanding partial-length L2 of Zhou Fangxiang are 1: 0.52.The N utmost point joins with the planar portions of stator 116 peripheries with the S utmost point with the periphery wall portion 123 of stator 113.
This HB-SR motor 100, its diameter of phi 2 is 6mm, is flea-size motor.Diameter of phi 2 needn't be 6mm in fact, also can be about 3～10mm.In addition, also can make the resin portion 108 of stator 101 can cover each stator formation 101a of portion, 101b, 101c, that is to say, can insert stator 101a, 101b, 101c makes its moulding.In addition, also resin portion 108 can be set.And then in Figure 35 etc.,, the motor casing that can cover and fix shell 103 and stator 101 can be set though the covering shell of stator 101 is not set.
Under the situation of rotor 102 rotations of driving HB-SR motor 100, at first make electric current flow through the bobbin winding 118 of the stator formation 101a of portion, the excitatory utmost point tooth 112 of the prominent utmost point of conduct that makes becomes the N utmost point, make utmost point tooth 115 become the S utmost point, introduce the position relative with unshakable in one's determination 125 then with the two poles of the earth tooth 112,115 as the prominent utmost point.Then,, carry out same excitatoryly, make unshakable in one's determination 126 to rotate to the position relative with the two poles of the earth tooth 112,115 of the stator formation 101b of portion by bobbin winding 118 with the current direction stator formation 101b of portion.At this moment, do not power to the stator formation 110a of portion.
Then, cutting off in the electric current supply of the stator formation 101b of portion, the 101c of portion provides electric current to the stator formation.Thus, the excitatory utmost point tooth 112 of the stator formation 101c of portion that makes becomes the N utmost point, and utmost point tooth 115 becomes the S utmost point.So unshakable in one's determination 127 are attracted between the two poles of the earth tooth 112,115 and rotation.By above operation repeatedly, rotor 102 continues rotation.And, rotor 102 rotations 60 degree when switch current.By the rotation of rotor 102 to certain orientation, liquid can be along helicla flute 130,131, from ingress pipe 104 effluents to discharge pipe 105 sides.
The HB-SR motor 100 of the foregoing description 8 is motor that rotor 102 is provided with 2 helicla flutes 130,131, but 1 helicla flute also can be set, or the helicla flute more than 3.In addition, stator formation portion overlappingly has more than 4 layers, and the iron core of a side rotor 102 has 4 above positions overlay configuration that staggers.In addition, the iron core of the rotor 102 that can stagger carries out overlay configuration at same position, and the stator formation that also can stagger portion carries out overlapping.
In addition, on each stator formation 101a of portion of stator 101,101b, 101c, can make unshakable in one's determination 125,126,127 to be cross respectively, and be provided with respectively 2 N utmost points with utmost point teeth 112 and 2 S utmost points with utmost point teeth 115.In addition, as other embodiment, most prominent utmost points and convex portion (face unshakable in one's determination) can be set also.In addition, when using, also can adopt the reluctance motor under other embodiment as pump motor.Rotor and pump blade also can be set respectively and pump blade is placed in the liquid, rotor and liquid are not come in contact.
Below, according to Figure 39 and Figure 40, the reluctance motor 140 of the embodiment of the invention 9 is described.
This reluctance motor 140 is the stepping type motor that adopted the camera lens conveying device of gamma camera etc. and carried the camera lens conveying device of CD sensing camera lens in CD (Compact Disc) drive unit of notebook computer.
This reluctance motor 140 is provided with: the stator 1D that 12 prominent utmost points are arranged, the rotor 2D that the magnetic opposing weakening portion 141 that becomes 10 convex portions is arranged, with the helical axis 142 that rotor 2D becomes one and rotates, support the bearing of helical axis 142 to be supported the bearing portion 144 of portion 143.And this reluctance motor 140 is supporting helical axis 142 and bearing portion 144 by motor support 145.
And, the quantity that can set the prominent utmost point is 6, and magnetic opposing weakening portion 141 is 8, and 24 steps are decomposed the stepping type motor of (1 step is 15 degree), also can set the prominent utmost point and the convex portion of other quantity, 48 steps are decomposed the stepping type motor of (1 step is 7.5 degree).This stepping type motor of picture, riveted joint is few, and cost is low.
Because being the element silicon sheet metal, the iron core of stator 1D is formed by stacking, so shown in other embodiment, embedding in the gap of each prominent utmost point front end has magnetite, and the setting of magnetite is that relative part is a homopolarity.The magnetite that is adopted is neodymium magnetite, tin cobalt magnetite etc.In addition, the relict flux density of setting magnetite is a, the saturation flux density of stator 1D iron core is b, with the area of the relative part of rotor 2D of the ledge of prominent utmost point magnetite side is W, with the area of the prominent utmost point contact portion of magnetite be Z, form the prominent utmost point of stator 1D, to satisfy (a/b) * Z * 1/3≤W≤(a/b) * Z * 2.
The radical length Φ 3 of this reluctance motor 140 is 3mm in the present embodiment.When this length Φ 3 is 2～5mm, can be applicable to microminiature camera lens conveying device.In addition, helical axis 142 is formed with screw thread, because helical axis 142 and rotor 2D are one, so can become high-precision stepping type motor.
Then, according to Figure 41 and Figure 42 the reluctance motor 160 of the embodiment of the invention 10 is described.
This reluctance motor 160 is that the shape in the magnetite of the motor of above-mentioned various HB- SR motor 10,40,50,60,70,80,100, reluctance motor 90,140 and other variation part has given change.Therefore, only partly describe below with regard to this magnetite.
The magnetite 161 of this reluctance motor usefulness stator is provided with 2m (m is the natural number more than or equal to 1) the individual cylindrical portion 162 (being 6 cylindrical portion among Figure 41) and the circular connecting portion 163 that is connected these cylindrical portion 162 1 sides of rounded setting as shown in figure 41.Each cylindrical portion 162 is magnetized, if a side is magnetized to the N utmost point, opposite side then is magnetized to the S utmost point, with regard to the relative face of adjacent cylindrical portion 162, is homopolarity.
To the magnetization of each cylindrical portion 162, utilization be magnetization instrument 165 shown in Figure 42.When utilizing magnetization instrument 165, each cylindrical portion 162 is magnetized.The magnetite 161 that has been magnetized will this cylindrical portion 162 inserts between the prominent utmost point and assembles under the state shown in Figure 41.The width L1 of cylindrical portion 162 equals and above-mentioned prominent extremely contacted width L1.
The axial length of the prominent utmost point equates with the outstanding length L 3 of cylindrical portion 162.Therefore, magnetite 161 is embedded between the prominent utmost point, circular connecting portion 163 sides form same plane from the prominent utmost point to the front end and the stator core of the outstanding cylindrical portion 162 of foreign side.
More than, the reluctance motor of embodiments of the invention 1～10 is illustrated, according to the prominent number of poles of reluctance motor stator side of the present invention and the convex portion quantity of rotor-side, in Figure 42, conclude rotation, the non-rotary relation of having shown.
Conclude relation shown in Figure 43 with mathematical formulae, obtain following result.That is to say, the prerequisite that has the reluctance motor rotation of following structure is: the quantity of the prominent utmost point is 2m (m is the natural number more than or equal to 1), between each prominent utmost point front end contiguous voids, making relative magnetic pole is homopolarity, and, for the side portion that makes magnetic pole and prominent utmost point front end is joined, 2m magnetic pole is set, and be provided with at each prominent stator that is wound with winding on extremely with when the quantity of convex portion is n (n is the natural number beyond 1) (it is 1 and 2 in addition any positives that the quantity of this convex portion should make n/m), the rotor of the utmost point tooth that is oppositely arranged with the prominent utmost point or magnetic opposing weakening portion is housed.
And, not that magnetite is configured between all prominent utmost points, a part wherein can be taken away.For example, can from the magnetite that is configured in the above-mentioned relation between all prominent utmost points, take 1 away; Also can from these magnetites, take away 1 or 2; 1 or 2 or 3 magnetites also can only be set.
In addition, the reluctance motor shown in each embodiment and the variation is compared with the motor of only being made up of the prominent utmost point and winding as shown in figure 44, can produce bigger commentaries on classics distance.Though what chart shown in Figure 44 was represented is the HB-SR motor 10 of embodiment 1, even the reluctance motor of other embodiment is compared the tendency that the generation large torque is equally also arranged with the reluctance motor under the prior art.
In addition, as shown in figure 45, reluctance motor of the present invention can continue rotation in changeing the very big scope of distance.Figure 45 is the chart with respect to the speed of HB-SR motor 10 commentaries on classics distances, efficient, electric current, even when the commentaries on classics distance is 300mNm, also can keep the rotation of 200rpm.Even under the situation of large torque, also can keep the phenomenon of rotation like this, in the reluctance motor of other embodiment, also can produce.
Reluctance motor of the present invention is by prominent extremely excitatory to each, makes the magnetic flux of each the prominent utmost point root side when excitatory reach this more than prominent utmost point saturation flux density, and the magnetic flux of magnetite is penetrated from rotor-side.In addition, by cutting off the excitatory of each prominent utmost point, making the magnetic flux of magnetite is not the directive rotor-side, but inject prominent extremely in--promptly inject in the stator.Excitatory and non-excitatory by the prominent utmost point of such repeatable operation magnetized and unmagnetized the prominent utmost point of stator.Simultaneously, use the magnetic flux (the particularly magnetic flux of magnetite) of stator interior effectively, rotor is rotated effectively.
More than, shown in each embodiment, reluctance motor is better embodiment of the present invention, still, and only otherwise breaking away from interest field of the present invention can carry out various variations.For example, as stator core and rotor core, except using pure iron, element silicon steel, can also use noncrystalline material, little milli alloy crystalline, the alsifer (Fe-Al-Si is an alloy) of the noncrystalline material of permalloy (Fe-Ni alloy), electromagnetism stainless steel, iron system and the noncrystalline material of Co system etc. to wait other soft magnetic material (high magnetic permeable material).In addition, as stator core and rotor core, except the thin plate lamination, can also adopt and not carry out lamination and homogenous material.
In addition, the relict flux density of setting magnetite is a, the saturation flux density of the prominent utmost point that is made of magnetic material is b, with be W from the relative part area of the rotor of the side-prominent part of magnetite of the prominent utmost point, when being Z with the contact portion area of the prominent utmost point of magnetite, the formation of the prominent utmost point of stator then is recommended in the scope of (a/b) * Z * 1/3≤W≤(a/b) * Z * 2, is more preferably in the scope of (a/b) * Z≤W≤(a/b) * Z * 1.5.This is because when excitatory when making the prominent utmost point produce the above magnetic flux of saturation flux density, and the magnetic flux of magnetite and partly flows to rotor-side by the convex of the utmost point of dashing forward because excitatory and mobile that part of magnetic flux no longer flows into.If this passage is obstructed, can't apply flexibly the magnetic flux of magnetite effectively.
In addition, if the convex part of the prominent utmost point is long, the occupation proportion of magnetite can improve, and the effect that embeds magnetite can be more obvious, simultaneously, can make the stator miniaturization of reluctance motor.And, even depart from above-mentioned scope--i.e. the scope of (a/b) * Z * 1/3≤W≤(a/b) * Z * 2, compare with the reluctance motor of prior art, also can keep good performance.
And then, the prominent utmost point of stator and the structure of magnetite in above-mentioned scope, have been set, not only can be applicable to the relative type reluctance motor of magnetite homopolarity of the present invention, can be applicable to that also the hybrid magnetic masonry is that 1 prominent utmost point uses, the rounded a plurality of motor with shape hybrid magnetic stone (motor of creation before the present invention) that dispose in order.That is to say, even single formed motor of mixed type magnetite by creation before the present invention, the relation of the prominent utmost point of stator etc. is if in the scope of the scope of (a/b) * Z * 1/3≤W≤(a/b) * Z * 2, (a/b) * Z≤W≤(a/b) * Z * 1.5, just can obtain the good motor of rotate effect.That is, in above-mentioned each scope, needn't interdependent magnetite and the arrangement mode of the prominent utmost point, just can obtain sufficient effect.
In addition, in the various embodiments described above, the axial length of magnetite equates that with the axial length of stator core the end of close proximity is a planar structure, but also can make the axial length of magnetite longer or short than stator core; In the various embodiments described above, the radical length of magnetite equates with the radical length of the prominent utmost point front end of stator, and is close proximity, but also can make the radical length of magnetite longer or short than the radical length stator core of prominent utmost point front end.
In the foregoing description, prominent twine 1 winding on extremely at 1, but also can prominently twine 1 winding on extremely at 2, carry out bifilar winding on 1 prominent utmost point part, change and flow to, the change by current direction changes the magnetized utmost point.
In addition, in the various embodiments described above, be the explanation of carrying out for all subtend type motor that radially are provided with regard to rotor and stator, but also be applicable to the plane subtend type motor of rotor and the overlapping setting of stator shaft orientation.In addition, inner rotator type and external rotor type have been arranged respectively, but also can will change to the inner rotator type, will change to the external rotor type with the inner rotator type with outside rotor-type.
In addition,,, 11 the prominent utmost point can also be set separately, and be configured to circle and constitute stator core except being set to the one with a plurality of prominent utmost points in advance as stator core; 2 the prominent utmost points or the prominent utmost point more than 3 also can be set separately, and be configured to circle and constitute stator core.
And then, as the magnetite 161 of magnetic resistance motivation, on the basis of using same shape to form, can carry out same magnetization in all cylindrical portion with stator, promptly the N utmost point and S are in the same relation extremely usually.Carried out the magnetite of this magnetized reluctance motor, can not only be applicable to the reluctance motor of the present invention that has utilized homopolarity subtend type magnetite, can also be applicable to the reluctance motor that utilizes heteropole subtend type magnetite with stator.
In addition, the rotor 2D of reluctance motor 140 also is applicable to the reluctance motor and the above-mentioned reluctance motor that utilizes heteropole subtend type magnetite of prior art except being applicable to reluctance motor of the present invention.
And then the prominent utmost point of each reluctance motor of the present invention, magnetite, convex portion mechanical angle (width) separately can also be other numerical value except above-mentioned numerical value.For example, in can each numerical value in any 1 or a plurality of positive and negative 10% the scope that is controlled at above-mentioned numerical value, also can make any 1 or a plurality of scope of positive and negative 10% that surpasses in 1 group with 1 group of prominent utmost point, magnetite, convex portion.
[effect of invention]
Reluctance motor of the present invention has suppressed system when reaching miniaturization and reducing vibration Cause this rising, can replace with the DC motor of prior art simply. In addition, When the present invention launches, can provide the reluctance motor that effectively utilizes magnetic flux aspect motor.
And then the present invention can make the manufacturing of the stator of the reluctance motor that utilizes the mixed type magnetite Efficient activity obtains the magnetite of the stator for reluctance motor of low price.
[simple declaration of accompanying drawing]
The sectional drawing of [Fig. 1] embodiment of the invention 1 reluctance motor.
The stator core part of [Fig. 2] embodiment of the invention 1 reluctance motor and the plane graph of rotor core part.
[Fig. 3] show the annexation of winding of the embodiment of the invention 1 reluctance motor and switch control part with and the schematic diagram in loop all round.
[Fig. 4] shown the current waveform of the electric current that flows in the embodiment of the invention 1 reluctance motor winding.
The schematic diagram of the current situation that flows in each winding of [Fig. 5] embodiment of the invention 1 reluctance motor, what (A) show is to change time of the electric current that flows in each winding and electric current adds up to, (B) the conclusion demonstration of magnetic flux flows in stator when switch step and each step.
The schematic diagram of the magnetic flux flows of [Fig. 6] embodiment of the invention 1 reluctance motor, demonstration be magnetic flux flowing between time point T1～T2.
The schematic diagram of the magnetic flux flows of [Fig. 7] embodiment of the invention 1 reluctance motor, demonstration be magnetic flux flowing after time point T2.
[Fig. 8] is excitatory by the embodiment of the invention 1 reluctance motor, the flowing and each conclusion schematic diagram of switching state mutually of the magnetic flux of generation.
The conclusion schematic diagram of [Fig. 9] embodiment of the invention 2 reluctance motor magnetizing fluxs.
[Figure 10] with between the switch step of the 0 expression embodiment of the invention 2 reluctance motors and each step by the excitatory utmost point.
The schematic diagram of the current waveform that flows in [Figure 11] embodiment of the invention 2 reluctance motor windings.
The schematic diagram of [Figure 12] embodiment of the invention 2 reluctance motor variation.
The schematic diagram of [Figure 13] embodiment of the invention 2 other variation of reluctance motor.
The stator core of [Figure 14] embodiment of the invention 3 reluctance motors and the plane graph of rotor core.
The magnetic flux that flows in [Figure 15] embodiment of the invention 3 reluctance electric machine stators and the schematic diagram of switch step.
Magnetic flux flows switch step, the table of induction that prominent utmost point magnetized state is corresponding mutually in [Figure 16] embodiment of the invention 3 reluctance electric machine stators.
The schematic diagram of [Figure 17] embodiment of the invention 3 reluctance motor magnetic flux flows also is the schematic diagram of the 1st state when driving mutually.
The schematic diagram of [Figure 18] embodiment of the invention 3 reluctance motor magnetic flux flows also is that beginning the 2nd drives mutually is the schematic diagram of state.
The schematic diagram of [Figure 19] embodiment of the invention 3 reluctance motor magnetic flux flows also is to finish the 2nd to drive mutually be the schematic diagram of state.
The schematic diagram of [Figure 20] embodiment of the invention 3 reluctance motor magnetic flux flows also is that beginning the 3rd drives mutually is the schematic diagram of state.
The schematic diagram of [Figure 21] embodiment of the invention 3 reluctance motor magnetic flux flows also is to finish the 3rd to drive mutually be the schematic diagram of state.
The schematic diagram of [Figure 22] embodiment of the invention 3 reluctance motor magnetic flux flows also is that beginning the 4th drives mutually is the schematic diagram of state.
The plane graph of [Figure 23] embodiment of the invention 3 reluctance motor stator cores part and rotor core part.
The magnetic flux that flows in the stator of [Figure 24] embodiment of the invention 4 reluctance motors and the schematic diagram of switch step.
Magnetic flux flows switch step, the table of induction that prominent utmost point magnetized state is corresponding mutually in [Figure 25] embodiment of the invention 4 reluctance electric machine stators.
The schematic diagram of the magnetic flux flows of [Figure 26] embodiment of the invention 4 reluctance motors also is the schematic diagram of the 1st state when driving mutually.
The schematic diagram of the magnetic flux flows of [Figure 27] embodiment of the invention 4 reluctance motors also is the schematic diagram of the 2nd state when driving mutually.
The magnetic flux that flows in the stator of [Figure 28] embodiment of the invention 5 reluctance motors and the schematic diagram of switch step.
The schematic diagram of the employed commutator part of [Figure 29] embodiment of the invention 5 reluctance motors.
The switch step of [Figure 30] embodiment of the invention 5 reluctance motors is by the excitatory prominent utmost point, the corresponding table of induction of brush.
The schematic diagram of the employed commutator part of [Figure 31] embodiment of the invention 6 reluctance motors.
The switch step of [Figure 32] embodiment of the invention 6 reluctance motors is by the excitatory prominent utmost point, the corresponding table of induction of brush.
[Figure 33] embodiment of the invention 7 reluctance motor sectional drawings.
The plane graph of [Figure 34] embodiment of the invention 7 reluctance motor stator cores part and rotor core part.
The plane graph of [Figure 35] embodiment of the invention 8 reluctance motor stator cores part and rotor core part.
The exploded perspective view of 1 stator formation portion (except the bobbin winding) of [Figure 36] embodiment of the invention 8 reluctance motors.
The A-A sectional drawing of [Figure 37] Figure 35.
The schematic diagram of the rotor of [Figure 38] embodiment of the invention 8 reluctance motors has shown iron core with solid line, has shown other parts with dotted line.
The sectional drawing of [Figure 39] embodiment of the invention 9 reluctance motors.
The oblique view of the utmost point profile of tooth adult of the rotor of [Figure 40] formation embodiment of the invention 9 reluctance motors.
[Figure 41] is embedded in the oblique view of the magnetite between the stator of the embodiment of the invention 10 reluctance motors.
[Figure 42] embodiment of the invention 10 reluctance motors key diagram of the magnetite Magnitizing method of stator.
The prominent number of poles of the stator of [Figure 43] embodiment of the invention 10 reluctance motors, the table of induction that concerns between the convex portion quantity of rotor, the motor with 0 expression in table is applicable to the present invention.
[Figure 44] represented comparing of reluctance motor of the present invention and prior art in the mode of chart, changes apart from the data that promoted.
[Figure 45] compares the data that can be rotated with what the mode of chart had been represented reluctance motor of the present invention and prior art in the large torque scope.
[explanation of symbol]
1: stator
2: rotor
10:HB-SR motor (reluctance motor)
11: the prominent utmost point
12: magnetite
13: winding
21: convex portion
141: magnetic opposing weakening portion
151: utmost point profile of tooth adult
152: through hole
161: the reluctance motor magnetite of stator
162: cylindrical portion
163: circular connecting portion
Claims (10)
1. reluctance motor, it is the reluctance motor that obtains rotary-torque between stator and rotor by the magnetic resistance change rate that takes place, it comprises:
The quantity of setting the prominent utmost point is that 2m and m are the natural number more than or equal to 1, relative magnetic pole be set between the adjacent slit of each prominent utmost point front end be that homopolarity and this magnetic pole link to each other with the front end side portion of the above-mentioned prominent utmost point amounts to 2m, perhaps, when the magnetite quantity that k is set between the slit that is not arranged at each prominent utmost point front end, (2m-k) individual magnetite is set, and on dashing forward extremely, applies stator with winding; With
Be provided with the rotor of convex portion, wherein, this convex portion is the magnetic opposing weakening portion of decay around the utmost point tooth that is provided with respect to the above-mentioned prominent utmost point or the magneto resistive ratio, and when the quantity of setting convex portion is n and n when being natural number beyond 1, n/m is any positive beyond 1 and 2.
2. reluctance motor as claimed in claim 1, it is characterized in that on said winding, making electric current to flow, rotate and drive, so that the N utmost point of said magnetite and the prominent utmost point that is clipped in the N interpolar are when excitatory and become the N utmost point, the S utmost point of said magnetite and the prominent utmost point that is clipped in the S interpolar are when excitatory and become the S utmost point, and, form one group at least and be subjected to the extremely excitatory prominent utmost point of N and be subjected to the extremely excitatory prominent utmost point of S.
3. reluctance motor as claimed in claim 1 or 2, it is characterized in that setting m is 2, and driving the number of phases is 4, and said each winding twines by same direction respectively, makes the sense of current that is flowing on each winding equidirectional always.
4. reluctance motor as claimed in claim 1 or 2 is characterized in that its setting m is the integer more than or equal to 4, drives the number of phases more than or equal to 4.
5. reluctance motor as claimed in claim 1 or 2 is characterized in that it can detect the position of rotation of said rotor, switches the electric current that is flowing on the said winding then.
6. reluctance motor as claimed in claim 1 is characterized in that its setting m is 3 and 3 multiple, and driving the number of phases is 3; Perhaps set m and be 2 and 2 multiple, driving the number of phases is 4, is used as the stepping type motor and turns round.
7. reluctance motor as claimed in claim 1 is characterized in that setting m for more than or equal to 4 integer, drive the number of phases more than or equal to 2 smaller or equal to m.
8. reluctance motor, it is the reluctance motor that obtains rotary-torque between stator and rotor by the magnetic resistance change rate that takes place, it comprises:
Formation is arranged on magnetite in the adjacent segment of a plurality of prominent utmost point front end of being made up of magnetic material, and join with the side portion of prominent utmost point front end, perhaps, when the magnetite quantity that k is set between the slit that is not arranged at each prominent utmost point front end, the formation of (2m-k) individual magnetite is set, simultaneously, be provided with the stator of the winding that is used for the excitatory above-mentioned prominent utmost point; With
Be provided with the rotor of convex portion, wherein, this convex portion is the magnetic opposing weakening portion of decay around the utmost point tooth that is provided with respect to the above-mentioned prominent utmost point or the magneto resistive ratio;
And, the relict flux metric density of setting above-mentioned magnetite is a, the saturation flux density of the above-mentioned prominent utmost point that is made of magnetic part is b, with the relative area partly of above-mentioned rotor from the side-prominent part of above-mentioned prominent utmost point magnetite is W, the area of the part that contacts with the prominent utmost point of above-mentioned magnetite is Z, with (a/b) * Z * 1/3≤W that satisfies condition≤(a/b) * Z * 2, form the prominent utmost point of said stator.
9. as claim 1 or 8 described reluctance motors, it is characterized in that said rotor is the utmost point profile of tooth adult of tubular, be provided with n through hole that increases the magnetic opposing on the circumferencial direction of this utmost point dentation organizator, the part that each through hole is adjacent in a circumferential direction is as n magnetic opposing weakening portion.
10. a reluctance motor is with the magnetite of stator, it is the magnetite that obtains the reluctance electric machine stator of rotary-torque between stator and rotor by the magnetic resistance change rate that takes place, it comprises: the 2m of a rounded configuration cylindrical portion, wherein m is the natural number more than or equal to 1, with the circular connecting portion that is connected with a side of this cylindrical portion;
Said each cylindrical portion is, a side that makes the opposite face of adjacent cylindrical portion is that the N utmost point, opposite side are the magnetite of the reluctance motor that is magnetized for homopolarity of the relative part of the S utmost point and adjacent cylindrical portion with stator.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003014043 | 2003-01-22 | ||
| JP2003014043A JP4383058B2 (en) | 2003-01-22 | 2003-01-22 | Reluctance motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1518188A CN1518188A (en) | 2004-08-04 |
| CN100394671C true CN100394671C (en) | 2008-06-11 |
Family
ID=32902201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100029364A Expired - Fee Related CN100394671C (en) | 2003-01-22 | 2004-01-20 | Reluctance motor and magnet of stator for reluctance motor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4383058B2 (en) |
| CN (1) | CN100394671C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107359712A (en) * | 2017-07-19 | 2017-11-17 | 南京航空航天大学 | Winding modularization magneto |
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|---|---|---|---|---|
| JP4675647B2 (en) * | 2005-03-03 | 2011-04-27 | 株式会社ダイヤメット | Stator, core for rotating machine and rotating machine |
| JP5120801B2 (en) * | 2007-03-13 | 2013-01-16 | 学校法人金沢工業大学 | Rotating machine and method of manufacturing the rotating machine |
| JP5477939B2 (en) * | 2008-11-17 | 2014-04-23 | 株式会社洲和 | SR motor |
| CN201742278U (en) * | 2009-01-24 | 2011-02-09 | 冯鲁民 | Direct-current commutator type doubly salient reluctance motor |
| JP5335509B2 (en) * | 2009-03-25 | 2013-11-06 | 本田技研工業株式会社 | Rotating electric machine |
| CN101719709B (en) * | 2009-12-29 | 2012-02-01 | 卧龙电气集团股份有限公司 | Switched reluctance motor for capacitance split circuit |
| KR101184461B1 (en) * | 2011-01-10 | 2012-09-19 | 삼성전기주식회사 | Mechanically Commutated Switched reluctance motor |
| WO2013018245A1 (en) | 2011-07-29 | 2013-02-07 | パナソニック株式会社 | Electric motor |
| JP6089606B2 (en) * | 2012-11-07 | 2017-03-08 | シンフォニアテクノロジー株式会社 | Rotating machine |
| JP6083307B2 (en) * | 2013-04-11 | 2017-02-22 | シンフォニアテクノロジー株式会社 | Rotating machine |
| JP2017108513A (en) * | 2015-12-09 | 2017-06-15 | パナソニックＩｐマネジメント株式会社 | Device |
| JP6656429B2 (en) * | 2017-01-27 | 2020-03-04 | 三菱電機株式会社 | Stator, electric motor, compressor, and refrigeration air conditioner |
| WO2018138864A1 (en) * | 2017-01-27 | 2018-08-02 | 三菱電機株式会社 | Stator, electric motor, compressor, and refrigerating/air conditioning device |
| CN108736600A (en) * | 2018-06-27 | 2018-11-02 | 南通沃特光电科技有限公司 | A kind of mixed excitation electric machine |
| CN110176846B (en) * | 2019-04-30 | 2020-11-24 | 华中科技大学 | Switch flux permanent magnet motor with connecting bridge |
| JP7351123B2 (en) * | 2019-07-16 | 2023-09-27 | 株式会社デンソー | rotating electric machine |
| CN111181340B (en) * | 2020-02-19 | 2023-04-07 | 山东大学 | Combined modular dual-rotor permanent magnet rotating linear motor and driving equipment |
| CN111740515B (en) * | 2020-06-18 | 2022-03-25 | 电子科技大学 | Rotor modular hybrid excitation switched reluctance motor |
| WO2024080774A1 (en) * | 2022-10-14 | 2024-04-18 | 임성룡 | Switched reluctance motor comprising permanent magnets |
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| JP4207386B2 (en) * | 2000-12-28 | 2009-01-14 | 株式会社デンソー | Inductor-type electric machine with magnet-equipped armature |
| JP3798677B2 (en) * | 2001-11-06 | 2006-07-19 | アスモ株式会社 | Brushless motor |
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| JP2000150228A (en) * | 1998-11-11 | 2000-05-30 | Genesis:Kk | Hybrid magnet and stepping motor equipped with the same |
| JP2001258221A (en) * | 2000-03-10 | 2001-09-21 | Genesis:Kk | Self-starting synchronous motor |
| JP2001309691A (en) * | 2000-04-19 | 2001-11-02 | Aichi Electric Co Ltd | Switched reluctance motor and its sensorless drive circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107359712A (en) * | 2017-07-19 | 2017-11-17 | 南京航空航天大学 | Winding modularization magneto |
| CN107359712B (en) * | 2017-07-19 | 2019-07-09 | 南京航空航天大学 | Winding modularization magneto |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1518188A (en) | 2004-08-04 |
| JP4383058B2 (en) | 2009-12-16 |
| JP2004229404A (en) | 2004-08-12 |
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