CN103986256B - Switched reluctance motor rotor and motor thereof - Google Patents
Switched reluctance motor rotor and motor thereof Download PDFInfo
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- CN103986256B CN103986256B CN201310050266.2A CN201310050266A CN103986256B CN 103986256 B CN103986256 B CN 103986256B CN 201310050266 A CN201310050266 A CN 201310050266A CN 103986256 B CN103986256 B CN 103986256B
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Abstract
The present invention relates to a switched reluctance motor rotor including a rotor body and a plurality of rotor salient poles protruding outward from the rotor body in a radial direction. Wherein a magnetic resistance increasing section is provided in at least one of the plurality of rotor salient poles. And to a switched reluctance machine comprising such a machine rotor. The switched reluctance motor according to the present invention can reduce pulsation of output torque and improve stability and efficiency during operation of the motor.
Description
Technical field
The present invention relates to a kind of switch reluctance machine rotor, can subtract more particularly, to one
The switch reluctance machine rotor of the pulsation of the output torque of little switched reluctance machines.Further relate to use
The switched reluctance machines of above-mentioned rotor.
Background technology
At present, major part frequency-changeable compressor use permagnetic synchronous motor as its power part, and
Permagnetic synchronous motor needs to use the rotor being provided with permanent magnet, but the permanent magnet used is easy
Produced demagnetization in affecting by the external factor such as temperature, electric current, time serious, cause permanent magnet
Permanent loss of excitation, thus cause the inefficacy of permagnetic synchronous motor.Additionally, permanent magnet is expensive,
Particularly rare-earth permanent magnet, therefore limits the range of application of permagnetic synchronous motor.
Switched reluctance machines is owing to design is simple, sound construction, and without using the advantages such as magnet
And be gradually widely used.Switched reluctance machines is generally of double-salient-pole structure, in stator salient poles
On be wound with winding, for motor rotation provide excitation.But, switching magnetic-resistance of the prior art
Motor magnetic resistance change rate due to rotor with salient pole in operation process is relatively big, causes the arteries and veins of its output torque
Dynamic relatively big, so that bad stability, efficiency during motor rotation reduce, the application model of motor
Enclose and be restricted.To this end, prior art needs a kind of can reduce output torque pulsation and
Improve the stability in motor operation course and the switched reluctance machines of efficiency.
Summary of the invention
The present invention provides a kind of switch reluctance machine rotor, and it includes rotor body and from rotor basis
Multiple rotor with salient pole that body is outwardly in a radial direction.Wherein, in multiple rotor with salient pole
At least one is provided with magnetic resistance increase portion.
According to another aspect of the present invention, it is provided that a kind of switched reluctance machines, it includes stator
And rotor.Stator include stator base and from stator base towards the center of stator protrude multiple
Stator salient poles, the periphery of each in multiple stator salient poles is wound with winding.Rotor revolves
It is arranged in the inner chamber of stator with turning.Wherein, rotor is that switched reluctance machines as above turns
Son.
Accompanying drawing explanation
By the description to detailed description of the invention provided referring to the drawings, can be more
It is expressly understood further features and advantages of the present invention, in the accompanying drawings:
Fig. 1 is the schematic diagram of the population structure illustrating switched reluctance machines of the prior art;
Fig. 2 a-2c is that the rotor with salient pole illustrating the switched reluctance machines in Fig. 1 is relative to stator salient poles
It is in the schematic diagram of the amplification of diverse location;
Fig. 3 is the schematic diagram of the first embodiment of the switched reluctance machines according to the present invention；
Fig. 4 is the partial enlarged drawing illustrating the switch reluctance machine rotor in Fig. 3；
Fig. 5 is the local of the structure illustrating the magnet isolation tank on the switch reluctance machine rotor in Fig. 3
Enlarged drawing；
Fig. 6 is the schematic diagram of the second embodiment of the switch reluctance machine rotor according to the present invention；
Fig. 7 is the schematic diagram of the 3rd embodiment of the switch reluctance machine rotor according to the present invention；
Fig. 8 is the partial enlarged drawing of the switch reluctance machine rotor shown in Fig. 7；And
Fig. 9 is the schematic diagram of the 4th embodiment of the switch reluctance machine rotor according to the present invention.
Detailed description of the invention
With reference to the accompanying drawings exemplary embodiment of the present is described in detail.To exemplary
The description of embodiment is merely for the sake of demonstration purpose, and is definitely not the present invention and application thereof or use
The restriction of method.
It is briefly described the composition structure of switched reluctance machines 10 referring to Fig. 1 and works former
Reason.Switched reluctance machines 10 includes stator 20 and is rotatably disposed in the inner chamber of stator 20
Rotor 40, stator 20 includes the multiple stators protruded from its base portion 22 towards the center of stator 20
Salient pole 24, stator winding 26 is around the periphery coiling of stator salient poles 24.Rotor 40 includes rotor
Body 42 and from rotor body 42 rotor with salient pole 44 outwardly in a radial direction.Rotor is convex
There is certain gap, thus between the end that the end of pole 44 is relative with stator salient poles 24
Rotor 40 can be rotated freely through in the inner chamber of stator 20.Stator base 22 and stator
Salient pole 24 and rotor body 42 and rotor with salient pole 44 are all by material that magnetic property is good
Make.When the stator winding 26 being wound on around each stator salient poles 24 is by according to time certain
During sequence supply electric current, the magnetic field driving rotor 40 to rotate will be produced.
The operation principle of switched reluctance machines 10 as above is that magnetic flux is always maximum along pcrmeability
Path Guan Bi.According to above-mentioned principle, every in the rotor 40 of switched reluctance machines 10
Form to rotor with salient pole 44, be positioned at paired turning by giving along direction of rotation A of rotor 40
Winding 26 on the front of sub-salient pole 44 and the paired stator salient poles 24 closest with it supplies
To electric current, winding 26 is made to produce magnetic field.Such as, as it is shown in figure 1, convex for paired rotor
Pole 44-1 and 44-2, is respectively the most paired stator being positioned at its front along direction of rotation A
Winding 26-1 and 26-2 on salient pole 24-1 and 24-2 supplies electric current, then in stator salient poles 24-1
With the magnetic field produced on 24-2 along rotor with salient pole 44-1, rotor body 42, rotor with salient pole 44-2
And stator base 22 forms closed path.Owing to magnetic flux tends to the road along pcrmeability maximum
Footpath is propagated, and therefore, rotor with salient pole 44-1 and 44-2 is respectively facing and stator under the effect of magnetic force
Salient pole 24-1 and 24-2 distance closer proximity is moved, thus forms the Guan Bi road that pcrmeability is bigger
Footpath, so that rotor 40 rotates along direction of rotation A.When rotor with salient pole 44-1 and 44-2 divides
Not and stator salient poles 24-1 and 24-2 are radially on time, stator salient poles 24-1 and 24-2 are made
On winding 26-1 and 26-2 cut off electric current, and make to be positioned at stator salient poles along direction of rotation A
Winding 26 turn-on current in another group stator salient poles at 24-1 and 24-2 rear, thus for turning
Son 40 provides continuously and makes its electromagnetic force rotated.By corresponding switch element according to certain
The current turns ON state of the winding 26 in stator salient poles 24 that sequential control is paired, thus for turning
Son 40 provides and makes its magnetic field persistently rotated.
As can be seen here, switched reluctance machines 10 is to utilize magnetic resistance change rate to produce driving torque to carry out work
Make, but owing to its magnetic resistance change rate is relatively big, the pulsation therefore causing torque to export is bigger.When opening
Close reluctance motor 10 rotor with salient pole 44 from it along the anterior lateral margin of direction of rotation A with corresponding
The position along the rear portion lateral margin alignment of direction of rotation A of stator salient poles 24 moves to this rotor with salient pole
When symmetrical center line OB of 44 is with the position of the rear portion lateral margin alignment of corresponding stator salient poles 24,
Inductance for rotor with salient pole 44 increases region, and inductance now produces driving torque.Such as Fig. 2 a
Shown in 2b, as a example by rotor with salient pole 44-1 and stator salient poles 24-1, above-mentioned motor process is i.e.
Rotor for moving to as shown in Figure 2 b from the position of rotor with salient pole 44-1 as shown in Figure 2 a is convex
The position of pole 44-1, the inductance produced in the process can produce driving torque, and this is at switch
The operation process of reluctance motor 10 is desired.And when rotor with salient pole 44 continues to transport forward
Time dynamic, i.e. from symmetrical center line OB of rotor with salient pole 44 with after corresponding stator salient poles 24
The substantially aligned position of lateral margin moves to symmetrical center line OB and the stator salient poles of rotor with salient pole 44
When symmetrical center line OB of 24 is substantially aligned, reducing region for inductance, inductance now will produce
Raw braking moment.As shown in figs. 2 b and 2 c, said process is from rotor as shown in Figure 2 b
The position of salient pole 44-1 moves to the position of rotor with salient pole 44-1 as shown in Figure 2 c, in this mistake
The inductance produced in journey then can produce braking moment, and this for the operating of switched reluctance machines 10 is
Disadvantageous.By switch controller, the winding 26 in corresponding stator salient poles 44 can be carried out
Power-off controls, thus avoids producing braking moment.But, owing to there is inductance, cause electric current
Control exists delayed, and the output that therefore have impact on torque and the pulsation causing torque to export increase.
As it has been described above, in the operation process of switched reluctance machines 10, it is desirable to output turns
The pulsation of square is the smaller the better, and the inductance namely producing braking moment is the smaller the better.And at inductance
The effective ways reducing the inductance on the rotor with salient pole 44 that region reduction rotates are that increase rotor is convex
The magnetic resistance of pole 44.It is to say, move logical along direction of rotation A in order to reduce rotor with salient pole 44
Cross inductance when inductance reduces region, need suitably to increase rotor with salient pole 44 along direction of rotation
The magnetic resistance of the rear portion of A.As it is shown on figure 3, at the switched reluctance machines 10 according to the present invention
In, at least one in multiple rotor with salient pole 44 be provided with magnet isolation tank 46, advantageously,
Each in multiple rotor with salient pole 44 is provided with magnet isolation tank 46.Further, every
Magnetic groove 46 is formed on the rear portion along direction of rotation A of rotor 40 of rotor with salient pole 44,
The quantity of the magnet isolation tank 46 on each rotor with salient pole 44 can need to arrange one according to design
Or it is more.Magnet isolation tank 46 can be hollow space or be filled with the thing that magnetic resistance is relatively large
Matter so that the magnetic resistance at magnet isolation tank 46 is much larger than the magnetic resistance of other positions of rotor with salient pole 44,
Thus magnet isolation tank 46 can be referred to as magnetic resistance increase portion.At this it should be noted that along switch
Direction of rotation A of the rotor 40 of reluctance motor 10, claims the orientation identical with direction of rotation A
For front or front portion, the orientation contrary with direction of rotation A is referred to as rear or rear portion.As made
Shown in Fig. 4 for the partial enlarged drawing of the switched reluctance machines 10 in Fig. 3, magnet isolation tank 46
It is arranged on the part at the rear portion being positioned at symmetrical center line OB along direction of rotation A of rotor with salient pole 44
On.Advantageously, magnet isolation tank 46 is arranged on the radial direction along rotor 40 of rotor with salient pole 44
End, say, that magnet isolation tank 46 is arranged on the longitudinal end of rotor with salient pole 44.Further
Ground, the size of magnet isolation tank 46 tapers into along direction of rotation A of rotor 40, so that
The magnetic resistance of rotor with salient pole 44 is gradually increased along the direction contrary with direction of rotation A of rotor 40,
So that rotor with salient pole 44 inductance in inductance reduces region when rotated correspondingly reduces.
It is to say, above-mentioned magnet isolation tank 46 it is possible to so that rotor with salient pole 44 is in institute from such as Fig. 2 b
The position of the rotor with salient pole 44-1 shown moves to the position of rotor with salient pole 44-1 as illustrated in fig. 2 c
Inductance when putting reduces, and thus reduces by the braking moment caused by inductance.According to the present invention's
The rotor with salient pole 44 of rotor 40 is provided with the switched reluctance machines 10 of magnet isolation tank 46 in work
During work, the pulsation of its output torque reduces, and improves the efficiency of motor.
Further, being provided with self-clinching portion 48 in stator salient poles 44, self-clinching portion 48 is arranged on
In the rear portion along direction of rotation A of stator salient poles 44.Can be in multiple stator salient poles 44
In at least one on self-clinching portion 48 is set, advantageously, every in multiple stator salient poles 44
Self-clinching portion 48 it is respectively provided with on one.The lamination forming rotor 40 is riveted on one by self-clinching portion 48
Rising, self-clinching portion 48 can be formed as square, rectangle, circle or other suitable shapes, its
Can be formed by the corresponding material of punching press on each lamination, the material stamped out may be used for
Each lamination is made to be riveted together regularly.Owing to defining bigger the breaking of magnetic resistance in self-clinching portion 48
Split part or define the space not comprising permeability magnetic material, hence in so that the rear portion of stator salient poles 44
The magnetic resistance of part increases further.Rotate therefore, it is possible to reduce stator salient poles 44 further
Produced inductance when reducing region by inductance, thus reduce further by caused by inductance
Braking moment, thus can reduce the pulsation of the output torque of switched reluctance machines 10 further.
The concrete size characteristic of following description magnet isolation tank 46.As it is shown in figure 5, magnet isolation tank 46
It is arranged on the rear portion of rotor with salient pole 44 along direction of rotation A, advantageously, magnet isolation tank
The major part of 46 is positioned at the rear of symmetrical center line OB along direction of rotation A.Wherein, rotor
Direction of rotation A of salient pole 44 is from right to left, rotates the most in the counterclockwise direction.From figure
It can be seen that magnet isolation tank 46 extending about from symmetrical center line OB of rotor with salient pole 44 in 5
Near the posterior lateral margin 441 of rotor with salient pole 44, and it is along the radial direction of rotor 40
Size become larger along direction from left to right, say, that the radial ruler of magnet isolation tank 46
Very little it is gradually increased along the direction contrary with direction of rotation A of rotor with salient pole 44.Magnet isolation tank 46
Leading edge 46-1 and symmetrical center line OB of symmetrical center line OB of close rotor with salient pole 44
The size range of the first distance W1 be-3mm to 5mm, say, that magnet isolation tank 46
Leading edge 46-1 of symmetrical center line OB of close rotor with salient pole 44 may be located at symmetrical centre
To in the range of at the 5mm of right side at the left side 3mm of line OB.Advantageously, above-mentioned first away from
From W1 in the range of-1.5mm to 0.5mm.Further, the close rotor of magnet isolation tank 46
Second distance between outer rim 46-2 and the top 442 of the top 442 of salient pole 44
The size range of W2 is 0mm to 3mm, i.e. magnet isolation tank 46 can be arranged directly on rotor
The top of salient pole 44 so that outside magnet isolation tank 46 is directly exposed to by the top of rotor with salient pole 44
Portion；Or, magnet isolation tank 46 can also be arranged on the inside of rotor with salient pole 44, i.e. magnet isolation tank 46
Outer rim 46-2 and the top 442 of rotor with salient pole 44 between there is 3mm within but be more than
The spacing of 0mm.Advantageously, above-mentioned second distance W2 is in the range of 0.3mm to 0.8mm.
Additionally, the trailing edge 46-3 of the posterior lateral margin 441 of the close rotor with salient pole 44 of magnet isolation tank 46 and rotor
The size range of the 3rd distance W3 between the posterior lateral margin 441 of salient pole 44 is 0mm to 3mm,
That is, magnet isolation tank 46 can be arranged directly on the right side of rotor with salient pole 44 so that magnet isolation tank 46
It is directly exposed to outside by the right side of rotor with salient pole 44；It addition, magnet isolation tank 46 can also
It is arranged on trailing edge 46-3 and the rotor with salient pole 44 of the inside of rotor with salient pole 44, i.e. magnet isolation tank 46
Posterior lateral margin 441 between there is 3mm within but more than the spacing of 0mm.Advantageously, above-mentioned
3rd distance W3 is in the range of 0.3mm to 0.8mm.
In the rotor 40 of the switched reluctance machines according to the present invention, magnet isolation tank 46 is along turning
The size of radial direction of son 40, i.e. the radial dimension of magnet isolation tank 46, along with rotor 40
The contrary direction of direction of rotation A be gradually increased.The rotation along rotor 40 of magnet isolation tank 46
The anterior end of direction A has smallest radial size H1, and it is with as above second
Distance W2 has a following relation: smallest radial size H1=0.3mm+K1 × second distance
W2, wherein, K1 is constant, and its span is 3 to 5, i.e. 3≤K1≤5.It addition,
The last side end of direction of rotation A along rotor 40 of magnet isolation tank 46 has maximum radial chi
Very little H2, it has following relation with second distance W2 as above: maximum radial dimension
H2=0.3mm+K2 × second distance W2, wherein, K2 is constant, its span
Be 5 to 8, i.e. 5≤K2≤8.Advantageously, smallest radial size H1 of magnet isolation tank 46
For 0.3mm to 1.2mm, maximum radial dimension H2 of magnet isolation tank 46 be 3mm extremely
5.2mm.There is the edge of the rotor with salient pole 44 that the magnet isolation tank 46 of as above size can not only make
The rear portion of direction of rotation A has the enough magnetic resistance being gradually increased, and is able to ensure that
The requirement of strength of rotor with salient pole 44.
Rotor with salient pole 44 arranges magnet isolation tank 46 and can increase the magnetic resistance of rotor with salient pole 44, from
And reduce rotor with salient pole 44 produced inductance on rotating, it is possible at switched reluctance machines
10 switch controller commutation time rapid cut-off current, thus be conducive to reduce commutation time delayed
Braking moment produced by electric current.Further, since magnet isolation tank 46 is along the rotation side of rotor 40
On the rear portion that A is arranged on rotor with salient pole 44, therefore it is without influence on rotor with salient pole
Permeance property at the part of the generation driving torque of 44, i.e. in the edge rotation of rotor with salient pole 44
Turn and there is no magnet isolation tank on the front part of direction A, be thus advantageous to improve rotor with salient pole 44 magnetic conductance
Performance, it is simple to produce the bigger magnetic force making rotor 40 rotate.As it has been described above, according to the present invention
Switched reluctance machines 10 its rotor with salient pole 44 rotate past inductance increase region time can produce
Raw bigger inductance, thus produce bigger output torque, and rotate past at rotor with salient pole 44
Inductance can promptly reduce inductance when reducing region, thus reduce and braked by produced by inductance
Torque so that switched reluctance machines 10 exports the pulsation of torque and reduces, and efficiency is improved.
Further, another according to the rotor 40 of the switched reluctance machines 10 of the present invention is real
Execute example, obstruct bridge 62 can be set between rotor with salient pole 44, as shown in Figure 6, in every phase
Obstruct bridge 62 is set between two adjacent rotor with salient pole 44.Intercept bridge 62 and be arranged in adjacent
Rotor with salient pole 44 between the outermost in space so that the outer ledge of rotor with salient pole 44 with
The outer rim intercepting bridge 62 constitutes the outer peripheral edge of rotor 40.It is to say, outside rotor with salient pole 44
Lateral edges and the outer rim intercepting bridge 62 are collectively forming complete circle, are the periphery of rotor 40
Edge.It is also possible to arrange as above on the rear portion along direction of rotation A of rotor with salient pole 44
Described magnet isolation tank 46.Certainly, rotor with salient pole 44 can also arrange self-clinching as above
Portion 48.Magnet isolation tank 46 according to the present embodiment and self-clinching portion 48 with according in front described embodiment
In magnet isolation tank and the structure in self-clinching portion and operation principle essentially identical, do not elaborate at this.
The obstruct bridge 62 being arranged such can reduce air drag in the rotary course of rotor 40, from
And reduce air abrasion, also reduce noise produced by windage simultaneously.Therefore, according to
The efficiency of the switched reluctance machines 10 of this embodiment of the present invention is further improved.
In the further embodiment of the rotor 40 of the switched reluctance machines 10 according to the present invention,
As it is shown in fig. 7, make the end of rotor with salient pole 44 be formed as step-like.It can be seen from figure 7 that
The rear portion along direction of rotation A of rotor with salient pole 44 is formed recess 64, thus makes
The end obtaining rotor with salient pole 44 is formed as step-like.Recess 64 can be by making rotor with salient pole 44
The second outer rim 446 along the rear that direction of rotation A is positioned at its symmetrical center line OB there is ratio
The arc of the radius that the radius of the first outer rim 445 that rotor with salient pole 44 is located anteriorly is less is formed,
It is consequently formed step-like rotor with salient pole 44, and in the first outer rim 445 and the second outer rim 446
Between formed stage portion 447.It is to say, the first outer rim 445 shape of multiple rotor with salient pole 44
The circle that the circular radius become is formed more than the second outer rim 446 of multiple rotor with salient pole 44
Radius, wherein, the circle that the first outer rim 445 of multiple rotor with salient pole 44 is formed and multiple turns
The circle that second outer rim 446 of sub-salient pole 44 is formed is concentric circular, and with rotor body 42
There is the same center of circle.Advantageously, stage portion 447 is along the symmetrical center line of rotor with salient pole 44
Formed.Certainly, outside the first outer rim 445 of rotor with salient pole 44 and/or the second of rotor with salient pole 44
Edge 446 can be linear, or can be to have excentric arc, it is also possible to wherein
One of for circular arc.Advantageously, the size edge in the radial direction at rotor 40 of recess 64
The direction contrary with direction of rotation A to be gradually increased, also just say, the radial dimension edge of recess 64
Direction of rotation A to be gradually reduced, this advantageously allow the magnetic resistance of rotor with salient pole 44 along with rotation
Direction contrary for direction A is gradually increased.As shown in Figure 8, the stage portion 447 of rotor with salient pole 44
The size range of height W4 be 0mm to 5mm, say, that when the first outer rim 445
When being isocentric circular arc with the second outer rim 446, the circular arc of the first outer rim 445 of rotor with salient pole 44 half
Footpath is than the big 0mm to 5mm of arc radius of the second outer rim 446, i.e. the first of rotor with salient pole 44
Outer rim 445 can be the arcing outer edges with same radius with the second outer rim 446, or rotor
The arc radius of the first outer rim 445 of salient pole 44 is bigger than the arc radius of the second outer rim 446 at most
5mm but more than 0mm.Advantageously, the height W4 of stage portion 447 is in the range of 2mm extremely
3.5mm.Recess 64 can be formed as wedge shape, convex arc, concavity arc and analogous shape.
In the embodiment in accordance with the invention, as shown in Figure 7 and Figure 8, can be at rotor with salient pole 44
On self-clinching portion 48 is set, form the lamination of rotor body 42 and rotor with salient pole 44 by self-clinching portion
48 are riveted together, thus form complete rotor 40.It is of course also possible at rotor with salient pole
Magnet isolation tank 46 as above is formed on the rear portion of 44.By being formed at rotor with salient pole 44
End on recess 64 can increase the magnetic resistance of rotor with salient pole 44, thus reduce rotor 40 and revolve
Produce the inductance on rotor with salient pole 44 when turning, it is possible to opening at switched reluctance machines 10
Gateway controller turns off rapidly the feelings of the electric current of the winding 26 in corresponding stator salient poles 24 when commutating
Under condition, make the inductance in rotor with salient pole 44 reduce rapidly, thus reduce and made by produced by inductance
Dynamic torque.The pulsation of the output torque of switched reluctance machines 10 can be reduced by this structure,
And therefore improve the efficiency of motor.Equally, by arranging magnet isolation tank on rotor with salient pole 44
46 and/or self-clinching portion 48, it is possible to reduce the arteries and veins of the output torque of switched reluctance machines 10 further
Move and improve its efficiency.Further, as shown in Figure 9, it is also possible to meaning in office adjacent two
Obstruct bridge 62 is set between individual rotor with salient pole 44.Intercept 26S Proteasome Structure and Function and the reference figure of bridge 62
Embodiment described in 6 is identical, does not repeats at this.
Hereinafter the switch reluctance machine rotor according to the present invention and corresponding switched reluctance machines are done
Illustrate with generality.
One embodiment of the switch reluctance machine rotor according to the present invention, at multiple rotor with salient pole
In each in be provided with magnetic resistance increase portion.
The further embodiment of the switch reluctance machine rotor according to the present invention, magnetic resistance increase portion
It is arranged on the end of rotor with salient pole.
In another embodiment of the switch reluctance machine rotor according to the present invention, magnetic resistance increases
Portion be arranged on rotor with salient pole along on the rear portion of the direction of rotation of rotor.
The further embodiment of the switch reluctance machine rotor according to the present invention, above-mentioned magnetic resistance increases
Big portion is magnet isolation tank.
In another embodiment of the switch reluctance machine rotor according to the present invention, magnet isolation tank
Radial dimension is gradually increased along direction opposite to the direction of rotation.
Another embodiment of switch reluctance machine rotor according to the present invention, magnet isolation tank is from turning
Extending about near the posterior lateral margin of rotor with salient pole of the symmetrical center line of sub-salient pole.
In another embodiment of the switch reluctance machine rotor according to the present invention, magnet isolation tank
The first distance between the radial symmetric centrage of leading edge and rotor with salient pole at-3mm to 5mm's
In the range of, wherein, before negative value represents that leading edge is positioned at radial symmetric centrage along direction of rotation
Side.Advantageously, above-mentioned first distance is in the range of-1.5mm to 0.5mm.
The further embodiment of the switch reluctance machine rotor according to the present invention, outside magnet isolation tank
Second distance between edge and the top of rotor with salient pole is 0mm to 3mm.Advantageously,
This second distance is 0.3mm to 0.8mm.
In a still further embodiment according to the switch reluctance machine rotor of the present invention, magnet isolation tank
The 3rd distance between trailing edge and the posterior lateral margin of rotor with salient pole is 0mm to 3mm.Advantageously,
3rd distance is 0.3mm to 0.8mm.
Another embodiment of switch reluctance machine rotor according to the present invention, the minimum of magnet isolation tank
Following relation is met between radial dimension and above-mentioned second distance: smallest radial size=
0.3mm+K1 × second distance, wherein, 3≤K1≤5.Advantageously, the path of magnet isolation tank
To size in the range of 0.3mm to 1.2mm.
In another embodiment of the switch reluctance machine rotor according to the present invention, magnet isolation tank
Following relation is met between maximum radial dimension and above-mentioned second distance: maximum radial dimension=
1.5mm+K2 × second distance, wherein, 5≤K2≤8.Advantageously, the maximum diameter of magnet isolation tank
To size in the range of 3mm to 5.2mm.
The a still further embodiment of the switch reluctance machine rotor according to the present invention, magnetic resistance increase portion
The recess of the end of each for being arranged in rotor with salient pole.
In another embodiment of the switch reluctance machine rotor according to the present invention, recess is from turning
The posterior lateral margin of sub-salient pole extends to the vicinity of the symmetrical center line of rotor with salient pole.
The further embodiment of the switch reluctance machine rotor according to the present invention, recess is from rotor
The posterior lateral margin of salient pole extends to the symmetrical center line of rotor with salient pole.
In a still further embodiment according to the switch reluctance machine rotor of the present invention, at recess
The end of the vicinity extending to symmetrical center line forms stage portion, and the height of stage portion is
0mm to 5mm.Advantageously, the height of stage portion is 2mm to 3.5mm.
The further embodiment of the switch reluctance machine rotor according to the present invention, rotor with salient pole
Second outer rim at the rear being positioned at stage portion is circular arc.
In a still further embodiment according to the switch reluctance machine rotor of the present invention, the footpath of recess
It is gradually increased along the direction contrary with the direction of rotation of rotor to size.
Another embodiment of switch reluctance machine rotor according to the present invention, wherein, many
At least one in individual rotor with salient pole is provided with self-clinching portion.
In another embodiment of the switch reluctance machine rotor according to the present invention, at multiple turns
Each in sub-salient pole is provided with self-clinching portion.
The further embodiment of the switch reluctance machine rotor according to the present invention, self-clinching portion is arranged
At rotor with salient pole along the rear portion of the direction of rotation of rotor.
In a still further embodiment according to the switch reluctance machine rotor of the present invention, in any phase
It is provided with obstruct bridge between the outer rim of two adjacent rotor with salient pole.
Another embodiment of switch reluctance machine rotor according to the present invention, intercepts outside bridge
The outer rim of edge and rotor with salient pole forms the outer peripheral edge of the circular of rotor.
In an embodiment of the switched reluctance machines according to the present invention, stator includes that 18 are determined
Sub-salient pole.
Another embodiment of switched reluctance machines according to the present invention, rotor includes that 12 turn
Sub-salient pole.
Although with reference to illustrative embodiments, invention has been described, but it is to be understood that
The invention is not limited in the detailed description of the invention describing in detail in literary composition and illustrating, without departing from
In the case of claims limited range, those skilled in the art can show described
Example embodiment makes various change.
Claims (35)
1. a switch reluctance machine rotor (40), including:
Rotor body (42)；With
Multiple rotor with salient pole (44), the plurality of rotor with salient pole (44) is from described rotor body (42)
It is outwardly in a radial direction,
Wherein, at least one in the plurality of rotor with salient pole (44) is provided with magnetic resistance increase
Portion (46,64),
Described magnetic resistance increase portion (46,64) be provided only on described rotor with salient pole (44) along institute
State on the rear portion of direction of rotation (A) of rotor (40).
2. switch reluctance machine rotor (40) as claimed in claim 1, wherein, described
Each in multiple rotor with salient pole (44) is provided with described magnetic resistance increase portion (46,64).
3. switch reluctance machine rotor (40) as claimed in claim 1, wherein, described magnetic
Resistance increase portion (46,64) is arranged on the end of described rotor with salient pole (44).
4. the switch reluctance machine rotor (40) as described in any one in claim 1-3, its
In, described magnetic resistance increase portion (46,64) is magnet isolation tank (46).
5. switch reluctance machine rotor (40) as claimed in claim 4, wherein, described every
The radial dimension of magnetic groove (46) is gradually increased along the direction contrary with described direction of rotation (A).
6. switch reluctance machine rotor (40) as claimed in claim 4, wherein, described every
Magnetic groove (46) from the symmetrical center line (OB) of described rotor with salient pole (44) extend about to
The vicinity of the posterior lateral margin (441) of described rotor with salient pole (44).
7. switch reluctance machine rotor (40) as claimed in claim 6, wherein, described every
The leading edge (46-1) of magnetic groove (46) and the radial symmetric centrage (OB) of described rotor with salient pole (44)
Between first distance (W1) in the range of-3mm to 5mm, wherein, negative value represents institute
State leading edge (46-1) and be positioned at described radial symmetric centrage (OB) along described direction of rotation (A)
Front.
8. switch reluctance machine rotor (40) as claimed in claim 7, wherein, described the
One distance (W1) is in the range of-1.5mm to 0.5mm.
9. switch reluctance machine rotor (40) as claimed in claim 6, wherein, described every
The outer rim (46-2) of magnetic groove (46) and the top (442) of described rotor with salient pole (44)
Between second distance (W2) be 0mm to 3mm.
10. switch reluctance machine rotor (40) as claimed in claim 9, wherein, described the
Two distances (W2) are 0.3mm to 0.8mm.
11. switch reluctance machine rotors (40) as claimed in claim 6, wherein, described every
The trailing edge (46-3) of magnetic groove (46) and the posterior lateral margin (441) of described rotor with salient pole (44) it
Between the 3rd distance (W3) be 0mm to 3mm.
12. switch reluctance machine rotors (40) as claimed in claim 11 are wherein, described
3rd distance (W3) is 0.3mm to 0.8mm.
13. switch reluctance machine rotors (40) as claimed in claim 9, wherein, described every
Between smallest radial size (H1) and the described second distance (W2) of magnetic groove (46) meet with
Lower relation:
Smallest radial size (H1)=0.3mm+K1 × second distance (W2),
Wherein, 3≤K1≤5.
14. switch reluctance machine rotors (40) as claimed in claim 13 are wherein, described
The smallest radial size (H1) of magnet isolation tank (46) is in the range of 0.3mm to 1.2mm.
15. switch reluctance machine rotors (40) as claimed in claim 9, wherein, described every
Between maximum radial dimension (H2) and the described second distance (W2) of magnetic groove (46) meet with
Lower relation:
Maximum radial dimension (H2)=1.5mm+K2 × second distance (W2),
Wherein, 5≤K2≤8.
16. switch reluctance machine rotors (40) as claimed in claim 15 are wherein, described
The maximum radial dimension (H2) of magnet isolation tank (46) is in the range of 3mm to 5.2mm.
17. switch reluctance machine rotors (40) as claimed in claim 1, wherein, described magnetic
Resistance increase portion (46,64) is the end of each being arranged in described rotor with salient pole (44)
Recess (64).
18. switch reluctance machine rotors (40) as claimed in claim 17 are wherein, described
It is convex that recess (64) extends to described rotor from the posterior lateral margin (441) of described rotor with salient pole (44)
The vicinity of the symmetrical center line (OB) of pole (44).
19. switch reluctance machine rotors (40) as claimed in claim 18 are wherein, described
Recess (64) extends to described turning from the described posterior lateral margin (441) of described rotor with salient pole (44)
The described symmetrical center line (OB) of sub-salient pole (44).
20. switch reluctance machine rotors (40) as claimed in claim 18, wherein, in institute
The end of the vicinity extending to described symmetrical center line (OB) stating recess (64) is formed
Stage portion (447), the height (W4) of described stage portion (447) is 0mm to 5mm.
21. switch reluctance machine rotors (40) as claimed in claim 20 are wherein, described
The height (W4) of stage portion (447) is 2mm to 3.5mm.
22. switch reluctance machine rotors (40) as claimed in claim 20 are wherein, described
Second outer rim (446) at the rear being positioned at described stage portion (447) of rotor with salient pole (44) is
Circular arc.
23. switch reluctance machine rotors (40) as claimed in claim 18 are wherein, described
The radial dimension of recess (64) is along contrary with the direction of rotation of described rotor (40) (A)
Direction is gradually increased.
24. switch reluctance machine rotors (40) as claimed in claim 4, wherein, described
At least one in multiple rotor with salient pole (44) is provided with self-clinching portion (48).
25. switch reluctance machine rotors (40) as claimed in claim 24, wherein, in institute
State the self-clinching portion (48) that is provided with in each in multiple rotor with salient pole (44).
26. switch reluctance machine rotors (40) as claimed in claim 24 are wherein, described
Self-clinching portion (48) is arranged on the rotation along described rotor (40) of described rotor with salient pole (44)
Turn on the rear portion of direction (A).
27. switch reluctance machine rotors (40) as described in any one in claim 17-23,
Wherein, at least one in the plurality of rotor with salient pole (44) is provided with self-clinching portion (48).
28. switch reluctance machine rotors (40) as claimed in claim 4, wherein, arbitrarily
Obstruct bridge (62) it is provided with between the outer rim of two adjacent described rotor with salient pole (44).
29. switch reluctance machine rotors (40) as claimed in claim 28 are wherein, described
The outer rim of the outer rim and described rotor with salient pole (44) that intercept bridge (62) forms described rotor (40)
The outer peripheral edge of circular.
30. switch reluctance machine rotors (40) as described in any one in claim 17-23,
Wherein, between the outer rim of two described rotor with salient pole (44) of arbitrary neighborhood, it is provided with obstruct bridge
(62)。
31. switch reluctance machine rotors (40) as claimed in claim 24 are wherein, in office
Obstruct bridge (62) it is provided with between the outer rim of two the described rotor with salient pole (44) anticipating adjacent.
32. switch reluctance machine rotors (40) as claimed in claim 27 are wherein, in office
Obstruct bridge (62) it is provided with between the outer rim of two the described rotor with salient pole (44) anticipating adjacent.
33. 1 kinds of switched reluctance machines (10), including:
Stator (20), described stator (20) includes stator base (22) and from described stator base
Portion is towards multiple stator salient poles (24) of the center protrusion of described stator (20), the plurality of
Winding (26) it is wound with on the periphery of each in stator salient poles (24)；With
Rotor, described rotor is rotatably disposed in the inner chamber of described stator (20),
Wherein, described rotor is the switching magnetic-resistance electricity as described in any one in claim 1-32
Machine rotor (40).
34. switched reluctance machines (10) as claimed in claim 33, wherein, described stator (20)
Including 18 described stator salient poles (24).
35. switched reluctance machines (10) as described in claim 33 or 34, wherein, described
Rotor (40) includes 12 rotor with salient pole (44).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310050266.2A CN103986256B (en) | 2013-02-07 | 2013-02-07 | Switched reluctance motor rotor and motor thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310050266.2A CN103986256B (en) | 2013-02-07 | 2013-02-07 | Switched reluctance motor rotor and motor thereof |
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| CN103986256A CN103986256A (en) | 2014-08-13 |
| CN103986256B true CN103986256B (en) | 2016-08-10 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105370582A (en) * | 2014-08-26 | 2016-03-02 | 杭州三花研究院有限公司 | Electronic water pump |
| FR3029029B1 (en) * | 2014-11-20 | 2018-02-23 | Valeo Systemes De Controle Moteur | ELECTRIC MACHINE |
| CN104410247B (en) * | 2014-12-12 | 2017-05-03 | 廖新春 | Acute angle magnetic damper |
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|---|---|---|---|---|
| US5386162A (en) * | 1992-05-18 | 1995-01-31 | Emerson Electric Co. | Redundant switched reluctance motor |
| CN2432725Y (en) * | 2000-06-27 | 2001-05-30 | 华中科技大学 | Self-drive monophase diametral winding permanent-magnet reluctance machine |
| JP2002136073A (en) * | 2000-10-23 | 2002-05-10 | Fujitsu General Ltd | Switched reluctance motor |
| CN202282656U (en) * | 2011-10-24 | 2012-06-20 | 常州华阳电子科技有限公司 | Low-torque-pulsation switched reluctance motor |
| CN203151246U (en) * | 2013-02-07 | 2013-08-21 | 艾默生环境优化技术(苏州)有限公司 | Switched reluctance motor rotor and motor thereof |
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2013
- 2013-02-07 CN CN201310050266.2A patent/CN103986256B/en active Active
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|---|---|---|---|---|
| US5386162A (en) * | 1992-05-18 | 1995-01-31 | Emerson Electric Co. | Redundant switched reluctance motor |
| DE69308380T2 (en) * | 1992-05-18 | 1997-06-12 | Emerson Electric Co | Redundant commutated reluctance motor |
| CN2432725Y (en) * | 2000-06-27 | 2001-05-30 | 华中科技大学 | Self-drive monophase diametral winding permanent-magnet reluctance machine |
| JP2002136073A (en) * | 2000-10-23 | 2002-05-10 | Fujitsu General Ltd | Switched reluctance motor |
| CN202282656U (en) * | 2011-10-24 | 2012-06-20 | 常州华阳电子科技有限公司 | Low-torque-pulsation switched reluctance motor |
| CN203151246U (en) * | 2013-02-07 | 2013-08-21 | 艾默生环境优化技术(苏州)有限公司 | Switched reluctance motor rotor and motor thereof |
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