CN108011459A - Rotor structure, asynchronous starting synchronous magnetic resistance motor and compressor - Google Patents
Rotor structure, asynchronous starting synchronous magnetic resistance motor and compressor Download PDFInfo
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- CN108011459A CN108011459A CN201711244362.5A CN201711244362A CN108011459A CN 108011459 A CN108011459 A CN 108011459A CN 201711244362 A CN201711244362 A CN 201711244362A CN 108011459 A CN108011459 A CN 108011459A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/26—Rotor cores with slots for windings
- H02K1/265—Shape, form or location of the slots
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K19/00—Synchronous motors or generators
- H02K19/02—Synchronous motors
- H02K19/14—Synchronous motors having additional short-circuited windings for starting as asynchronous motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Synchronous Machinery (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The present invention provides a kind of rotor structure, asynchronous starting synchronous magnetic resistance motor and compressor.Rotor structure, including：Rotor body, holding tank is offered on rotor body, holding tank is multiple, multiple holding tanks are along the arranged circumferentially spaced of rotor body, holding tank extends along q direction of principal axis, the first magnetic flux path is formed between two neighboring holding tank, the flow direction of the first magnetic flux path is parallel with q direction of principal axis, and the flow direction of the first magnetic flux path and d axis are perpendicular.By the way that holding tank to be arranged to the set-up mode along q direction of principal axis, so that the without hindrance circulation of q axis magnetic fluxs, the difference of the magnetic flux between d axis, q axis can effectively be increased, the motor with the rotor structure is enabled to produce the reluctance torque of bigger, increase the output torque and efficiency of motor, so as to improve the performance of motor.
Description
Technical field
The present invention relates to motor device technical field, in particular to a kind of rotor structure, asynchronous starting synchronous reluctance
Motor and compressor.
Background technology
Asynchronous starting synchronous magnetic resistance motor combines the design feature of induction machine and reluctance motor, is sensed by mouse cage and produced
Raw torque, which is realized, to be started, and producing reluctance torque by inductor rotor gap realizes that permanent rotating speed is run, and can directly connect power supply realization
Starting operation.Asynchronous starting synchronous magnetic resistance motor, without rare earth permanent-magnetic material, is also not present compared with asynchronous starting and permanent magnet motor
Demagnetization problem, motor cost is low, good reliability.
In the prior art, the q axis in the direction that setting magnetic flux easily flows through and the side for being difficult to flow through as magnetic flux on rotor
To raised at least a pair of of the slit portion of magnetic pole of the d axis into 90 degree the two poles of the earth, and configuration slit portion outer circumferential side it is multiple
Slot portion, conductive material is filled in slit portion and foregoing slot portion.Slit portion is made for the shape of straight line, slot portion edge circle
Circumferential direction radially configures at equal intervals.Since slot portion radially configures at equal intervals so that the magnetic flux side between slot portion
To vertical rotor surface Radial Flow.Slot portion hinders the circulation of magnetic flux q direction of principal axis, the particularly slot portion closer to d axis, q
Axis magnetic flux obstruction is more obvious, and the circulation of d axis magnetic flux is more smooth, therefore d axis, q axis magnetic flux difference unobvious, and salient pole ratio is not
Greatly, motor output torque and efficiency cannot be met the requirements.Further, since slit portion is made for the shape of straight line, rotor
There is axis hole at center, cause d axis internal rotors space very big, is not increased well using internal rotor space to set slit portion
The salient pole ratio of big motor, the problem such as cause motor overall performance low.
The content of the invention
It is a primary object of the present invention to provide a kind of rotor structure, asynchronous starting synchronous magnetic resistance motor and compressor, with
Solve the problems, such as that motor performance is low in the prior art.
To achieve these goals, according to an aspect of the invention, there is provided a kind of rotor structure, including：Rotor sheet
Body, offers holding tank on rotor body, holding tank be it is multiple, multiple holding tanks along the arranged circumferentially spaced of rotor body,
Holding tank extends along q direction of principal axis, and the first magnetic flux path, the flow direction of the first magnetic flux path are formed between two neighboring holding tank
It is parallel with q direction of principal axis, and the flow direction of the first magnetic flux path and d axis are perpendicular.
Further, rotor body is additionally provided with magnetic barrier slit groove, and the extension of q direction of principal axis, magnetic are prolonged in the both ends of magnetic barrier slit groove
The first end of barrier slit groove is corresponding with a holding tank in multiple holding tanks, the second end and multiple appearances of magnetic barrier slit groove
Another holding tank received in groove is corresponding, formed with every bridge between the magnetic barrier slit groove of holding tank corresponding thereto.
Further, magnetic barrier slit groove is multiple that multiple magnetic barrier slit grooves are positioned apart from along d direction of principal axis, two neighboring
The second magnetic flux path is formed between magnetic barrier slit groove, each magnetic barrier slit groove is corresponding with two holding tanks.
Further, multiple magnetic barrier slit grooves are symmetrically arranged at least one in q axis and d axis, and/or multiple appearances
Groove of receiving is symmetrically arranged at least one in q axis and d axis.
Further, groove is additionally provided with the outer circumferential surface of rotor body, groove is located at the outer of the d direction of principal axis of rotor body
On surface.
Further, groove be two, two grooves be arranged on rotor body on the axisymmetric outer circumferential surfaces of q.
Further, the depth capacity of the radial direction along rotor body of groove is H, wherein, 0.5 δ≤H ＜ δ, its
In, width of air gaps of the δ between rotor body and stator core.
Further, axis hole, both ends to the hole of axis hole extended along q direction of principal axis of groove are offered in the middle part of rotor body
The central angle that line is formed between the heart is α, wherein, 20 °≤α≤45 °.
Further, the first magnetic flux path formed between two adjacent holding tanks, it is corresponding with two holding tanks
The second magnetic flux path for being formed forms the magnetic circuit of connection between magnetic barrier slit groove, and the width of the first magnetic flux path is D1, and second
The minimum widith of magnetic flux path is D2, wherein, D1 >=D2.
Further, the width of the first magnetic flux path of q axis excessively formed between two adjacent holding tanks is D3, its
In, D3 ＞ K, wherein, K is the width of the stator tooth of stator core.
Further, axis hole and magnetic barrier slit groove are offered in the middle part of rotor body, hole wall to the magnetic of axis hole hinders slit groove
The minimum range of cell wall be D4, wherein, 0.5 × D3≤D4.
Further, the minimum range of the cell wall of holding tank to the outer circumferential surface of rotor body is L1, wherein, 0.5 δ≤L1 ＜
δ, and/or every the minimum widith of bridge be L2, wherein, the 0.5 δ≤air gap of L2 ＜ δ, δ between rotor body and stator core is wide
Degree.
Further, axis hole is offered in the middle part of rotor body, multiple magnetic hinder the width of slit grooves and are m, axis hole
The minimum range of hole wall to the cell wall of groove is m6, wherein, m/m6=Q, 0.3≤Q≤0.5.
Further, the bottom of groove is in the concave cambered surface of geometric center towards rotor body, or the bottom of groove
Faced directly including at least one.
Further, holding tank is used to accommodate conductive non-magnetic material.
Further, the opposite two side walls along the extension of q direction of principal axis of holding tank are parallel with q axis.
According to another aspect of the present invention, there is provided a kind of asynchronous starting synchronous magnetic resistance motor, including rotor structure, rotor
Structure is above-mentioned rotor structure.
According to another aspect of the present invention, there is provided a kind of compressor, including rotor structure, rotor structure turn for above-mentioned
Minor structure.
Apply the technical scheme of the present invention, by the way that holding tank to be arranged to the set-up mode along q direction of principal axis so that q axis magnetic
Lead to without hindrance circulation, can effectively increase the difference of the magnetic flux between d axis, q axis so that there is the motor energy of the rotor structure
The reluctance torque of bigger is enough produced, increases the output torque and efficiency of motor, so as to improve the performance of motor.
Brief description of the drawings
The accompanying drawings which form a part of this application are used for providing a further understanding of the present invention, and of the invention shows
Meaning property embodiment and its explanation are used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows the structure diagram of the first embodiment of rotor structure according to the present invention；
Fig. 2 shows the structure diagram with the embodiment of motor stator assembling of rotor structure according to the present invention；
Fig. 3 shows the structure diagram of the second embodiment of rotor structure according to the present invention；
Fig. 4 shows the structure diagram of the 3rd embodiment of rotor structure according to the present invention；
Fig. 5 shows the structure diagram of the fourth embodiment of rotor structure according to the present invention；
Fig. 6 shows the structure diagram of the 5th embodiment of rotor structure according to the present invention；
Fig. 7 shows the torque curve comparison diagram of motor according to the present invention and motor of the prior art；
Fig. 8 shows the different magnetic barrier of motor according to the present invention than the graph of a relation with motor output torque.
Wherein, above-mentioned attached drawing is marked including the following drawings：
10th, rotor body；11st, holding tank；12nd, the first magnetic flux path；13rd, magnetic barrier slit groove；14th, the second magnetic flux path；
20th, every bridge；
30th, groove；
40th, axis hole；
50th, stator core；51st, stator tooth；
60th, cast aluminium end ring.
Embodiment
It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the application can phase
Mutually combination.Below with reference to the accompanying drawings and the present invention will be described in detail in conjunction with the embodiments.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
It should be noted that term " first ", " second " in the description and claims of this application and attached drawing etc.
It is for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that the art so used
Language can exchange in the appropriate case, so that presently filed embodiment described herein for example can be with except illustrating herein
Or the order beyond those of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that
Cover it is non-exclusive include, for example, containing the process of series of steps or unit, method, system, product or equipment need not limit
In those steps or unit for clearly listing, but may include not list clearly or for these processes, method, production
The intrinsic other steps of product or equipment or unit.
For the ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be appreciated that spatially relative term is intended to comprising the orientation except device described in figure
Outside different azimuth in use or operation.For example, if the device in attached drawing is squeezed, it is described as " in other devices
It will be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and
" in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
Now, the illustrative embodiments according to the application are more fully described with reference to the accompanying drawings.However, these are exemplary
Embodiment can be implemented by many different forms, and should not be construed to be limited solely to embodiment party set forth herein
Formula.It should be appreciated that thesing embodiments are provided so that disclosure herein is thoroughly and complete, and these are shown
The design of example property embodiment is fully conveyed to those of ordinary skill in the art, in the accompanying drawings, for the sake of clarity, it is possible to expand
The big thickness of layer and region, and make identical device is presented with like reference characters, thus they are retouched by omitting
State.
With reference to shown in Fig. 1 to Fig. 8, according to an embodiment of the invention, there is provided a kind of rotor structure.
Specifically, as shown in Figure 1, rotor structure includes rotor body 10.Holding tank 11 is offered on rotor body 10, is held
Groove 11 of receiving is multiple, and multiple holding tanks 11 extend along the arranged circumferentially spaced of rotor body 10, holding tank 11 along q direction of principal axis,
The first magnetic flux path 12 is formed between two neighboring holding tank 11, the flow direction of the first magnetic flux path 12 is equal with q direction of principal axis
Row is (as shown in f1 in Fig. 1), and the flow direction of the first magnetic flux path 12 and d axis are perpendicular.
In the present embodiment, by the way that holding tank to be arranged to the set-up mode along q direction of principal axis so that q axis magnetic fluxs are without hindrance
Circulation, can effectively increase the difference of the magnetic flux between d axis, q axis so that the motor with the rotor structure can produce more
Big reluctance torque, increases the output torque and efficiency of motor, so as to improve the performance of motor.
Wherein, rotor body 10 is additionally provided with magnetic barrier slit groove 13.The extension of q direction of principal axis is prolonged at the both ends of magnetic barrier slit groove 13,
The first end of magnetic barrier slit groove 13 is corresponding with a holding tank 11 in multiple holding tanks 11, and the second of magnetic barrier slit groove 13
End is corresponding with another holding tank 11 in multiple holding tanks 11, between the magnetic barrier slit groove 13 of holding tank 11 corresponding thereto
Formed with every bridge 20.Wherein, " correspondence " herein referred to be：As shown in Figure 1, magnetic barrier slit groove 13 positioned at the of the left side of d axis
One end is disposed adjacent with one end of the holding tank 11 positioned at the left side of d axis, wherein, the first end of magnetic barrier slit groove 13 and the receiving
Have between groove 11 every bridge 20.The second end positioned at the right side of d axis of magnetic barrier slit groove 13 and the holding tank positioned at the right side of d axis
11 one end is disposed adjacent, and is likewise formed between the second end of magnetic barrier slit groove 13 and the holding tank 11 on right side every bridge 20,
Magnetic resistance of the rotor body in d direction of principal axis can equally be effectively improved by so setting.
Preferably, magnetic barrier slit groove 13 is multiple that multiple magnetic barrier slit grooves 13 are positioned apart from along d direction of principal axis, adjacent two
The second magnetic flux path 14 is formed between a magnetic barrier slit groove 13, each magnetic barrier slit groove 13 is corresponding with two holding tanks 11.
Magnetic resistance of the rotor body in d direction of principal axis can further be improved by so setting, and then add the magnetic flux between q axis and d axis
The difference of amount.
Specifically, multiple magnetic barrier slit grooves 13 are axisymmetrically set on q, and multiple magnetic hinder slit groove 13 also on d axis pair
Ground is claimed to set, multiple holding tanks 11 are axisymmetrically set on q, and multiple holding tanks 11 are also axisymmetrically set on d.
In order to further improve the magnetic resistance of the d direction of principal axis of rotor body, also set up on the outer circumferential surface of the rotor body 10
Fluted 30.Groove 30 is arranged on the outer surface of rotor d direction of principal axis, can be arranged to d axis in the geometry of groove 30
At the heart.
Preferably, as depicted in figs. 1 and 2, groove 30 be two, two grooves 30 be arranged on rotor body 10 on q
On axisymmetric outer circumferential surface.Wherein, the depth capacity of the radial direction along rotor body 10 of groove 30 is H, wherein, 0.5 δ≤
H ＜ δ, wherein, width of air gaps of the δ between rotor body 10 and stator core 50.Further, the middle part of rotor body 10 is opened
Equipped with axis hole 40, the central angle formed along the both ends of q direction of principal axis extension to line between the hole heart of axis hole 40 of groove 30 is α,
Wherein, 20 °≤α≤45 °.
The first magnetic flux path 12 formed between two adjacent holding tanks 11, hinders with two holding tanks, the 11 corresponding magnetic
The second magnetic flux path 14 formed between slit groove 13 forms the magnetic circuit (as shown in f1 in Fig. 1) of connection, and the first magnetic flux path
12 width is D1, and the minimum widith of the second magnetic flux path 14 is D2, wherein, D1 >=D2.
The width of the first magnetic flux path 12 of q axis excessively formed between two adjacent holding tanks 11 is D3, wherein, D3 ＞
K, wherein, K is the width of the stator tooth 51 of stator core 50.The hole wall of axis hole 40 hinders the most narrow spacing of the cell wall of slit groove 13 to magnetic
From for D4, wherein, 0.5 × D3≤D4.
The minimum range of the cell wall of holding tank 11 to the outer circumferential surface of rotor body 10 is L1, wherein, 0.5 δ≤L1 ＜ δ, every
The minimum widith of bridge 20 is L2 (not shown)s, wherein, 0.5 δ≤L2 ＜ δ, δ is between rotor body 10 and stator core
Width of air gap.Multiple magnetic barrier slit grooves 13 width and be m, the minimum range of the cell wall of the hole wall of axis hole 40 to groove 30 are
M6, wherein, m/m6=Q, 0.3≤Q≤0.5.As shown in Figure 1, there are five magnetic barrier slit grooves 13, their width below q axis
Degree respectively m1, m2, m3, m4 and m5, wherein, m=m1+m2+m3+m4+m5.
As shown in Figures 3 to 6, the bottom of groove 30 can be arranged towards the concave arc of geometric center of rotor body 10
Face.Certainly, the bottom of groove 30 can also be arranged to include at least one face directly.Wherein, if the bottom of groove 30 is included extremely
Few two when facing directly, wherein the two neighboring angle faced directly can be right angle or obtuse angle.Preferably, holding tank 11 is used
In the conductive non-magnetic material such as Fig. 1 of receiving shown in f2.Wherein, as shown in Figure 1, the phase extended along q direction of principal axis of holding tank
To two side walls (1,2) it is parallel with q axis.
Rotor structure in above-described embodiment can be also used for motor device technical field, i.e., the opposing party according to the present invention
A kind of face, there is provided asynchronous starting synchronous magnetic resistance motor.The motor includes rotor structure, and rotor structure is in above-described embodiment
Rotor structure.Rotor structure includes rotor body 10.Offer holding tank 11 on rotor body 10, holding tank 11 be it is multiple, it is more
A holding tank 11 extends along the arranged circumferentially spaced of rotor body 10, holding tank 11 along q direction of principal axis, two neighboring holding tank 11
Between form the first magnetic flux path 12, the flow direction of the first magnetic flux path 12 is parallel with q direction of principal axis, and the first magnetic flux path
12 flow direction and d axis are perpendicular.
In the present embodiment, by the way that holding tank to be arranged to the set-up mode along q direction of principal axis so that q axis magnetic fluxs are without hindrance
Circulation, can effectively increase the difference of the magnetic flux between d axis, q axis so that the motor with the rotor structure can produce more
Big reluctance torque, increases the output torque and efficiency of motor, so as to improve the performance of motor.
Specifically, this application provides a kind of asynchronous starting, synchronously dynamic magnetic resistance motor rotor structure, solution asynchronous machine are imitated
The problem of rate is low, and rotating speed is low, realizes that motor effective constant rotating speed is run.Using the rotor structure, permanent magnet synchronous motor cost is solved
The problem of reliability such as height, magnet demagnetization is low.The rotor structure can effectively be dropped without using rare-earth magnet and drive control device
Low manufacture cost, using the rotor of the structure, can realize across-the-line starting synchronously dynamic reluctance motor.
Design is combined by holding tank and magnetic barrier, holding tank generation induction torque, which is realized, to be started, and is dragged in synchronization, passes through magnetic
The reluctance torque that barrier effect produces realizes that synchronism stability is run.
By the way that holding tank is arranged to horizontal mode on q direction of principal axis so that the without hindrance circulation of q axis magnetic fluxs, d axis magnetic
Logical complete barrier, while groove is set in d axis rotor surface, further increase d axis magnetic resistance, increase d axis, the difference of q axis magnetic flux,
So that the reluctance torque of the d direction of principal axis generation bigger in rotor, increase motor is contributed and efficiency.
Hindered by rational magnetic and holding tank designs, should ensured rational magnetic barrier accounting design, ensure that magnetic hinders it again
Between magnetic flux path supersaturation cannot occur, hinder magnetic flux flows, efficiently use rotor space, reached increase as far as possible d axis,
The effect of the difference of q axis magnetic flux.
The motor is made of the stator core with winding and rotor, and rotor is by rotor core and rotor with specific structure
The cast aluminium end ring 60 at iron core both ends forms, and multiple holding tanks and paired magnetic barrier slit groove, Yi Jihe are provided with rotor core
The axis hole that shaft coordinates, two sidelines are parallel with q axis up and down for holding tank.The d axis outer surface of rotor core sets groove.Holding tank
Hinder with magnetic and coordinate, magnetic flux barrier is formed on d direction of principal axis, magnetic flux path is formed on q direction of principal axis, holding tank and magnetic barrier are on d
Axis or q axial symmetry.
Two sidelines are parallel with q axis up and down for holding tank, its purpose causes the without hindrance circulation of q axis magnetic fluxs, and d axis magnetic fluxs hinder completely
Every increase d axis, the difference of q axis magnetic flux, produce the reluctance torque of bigger, increase motor is contributed and efficiency.
The d axis outer surface of rotor core sets groove, and angle shared by the circular arc of groove respective rotor periphery is α, wherein, 20 °
≤α≤45°.Groove depth capacity on d axis is H, wherein, 0.5 δ≤H ＜ δ, groove shapes can be various.Can be round
Arc, rectangle, inverted trapezoidal etc..It is increase d axis air-gap reluctances to be arranged such purpose, reduces d axis magnetic fluxs, increases salient pole ratio, increase
Motor is contributed.
The conductive non-magnetic material such as aluminium is inserted in all holding tanks, cast aluminium is formed, passes through the casting at rotor core both ends
Aluminium end ring 60 connects all holding tanks, forms mouse cage, and mouse cage, which produces induction torque and starts motor and motor pulls in, to be turned
Speed operation.
The distance of holding tank to rotor core exterior surface is L1, and the distance of holding tank to corresponding magnetic barrier is L2, and L1, L2 are full
Foot：0.5 δ≤L1 ＜ δ, 0.5 δ≤L2 ＜ δ, wherein, width of air gaps of the δ between stator core and rotor core, so set,
Rotor field leakage field can be reduced, lift electric efficiency.
Magnetic flux path width D 1 between two neighboring holding tank be greater than or equal to corresponding adjacent magnetic barrier slit groove it
Between the width D 2 of minimum magnetic flux path that is formed, i.e.,：D1 >=D2, its purpose is to ensure to leave enough width between aluminium groove,
Magnetic field saturation is avoided the occurrence of, influences the magnetic flux circulation of passage between magnetic barrier.
Magnetic flux path and q overlapping of axles above and below q axis between first holding tank, magnetic flux path width is D3, D3 and stator
The relation of the wide K of tooth meets：D3 ＞ K, the i.e. width of q axis magnetic flux path are more than the width of stator tooth, main the purpose is to ensure
Magnetic circuit passage is not in saturation, while causes magnetic flux to be efficiently entering stator tooth, forms torque.
The ratio between the width (m1+m2+m3+m4+m5) of all magnetic barrier slits and axis hole to the width (m6) of rotor outer periphery are Q,
That is (m1+m2+m3+m4+m5)/m6=Q ∈ [0.3-0.5], it is therefore an objective to select rational magnetic barrier accounting, both ensured enough magnetic barriers
Width, effectively hinders d axis magnetic fluxs, and ensures rational magnetic flux path, prevents magnetic flux supersaturation, increases q axis magnetic fluxs, increase
Motor salient pole ratio.
The shaft of the motor can use magnetic conductive material；Shaft can also use non-magnet material, then require shaft at this time
The minimum widith that hinders to both sides magnetic of axis hole meet following require：2*D4 >=D3, wherein D4 are the minimum widith that shaft hinders to magnetic,
The purpose is to prevent D4 passages from magnetic flux supersaturation occur, magnetic flux flows are hindered.
The motor can be also used for compressor apparatus technical field, according to another aspect of the present invention, there is provided one kind pressure
Contracting machine, including rotor structure, rotor structure are the rotor structure in above-described embodiment.Rotor structure includes rotor body 10.Turn
Offer holding tank 11 on sub- body 10, holding tank 11 is multiple, and multiple holding tanks 11 are circumferentially-spaced along rotor body 10
Set, holding tank 11 extends along q direction of principal axis, forms the first magnetic flux path 12 between two neighboring holding tank 11, the first magnetic flux leads to
The flow direction in road 12 is parallel with q direction of principal axis (as shown in f1 in Fig. 1), and the flow direction of the first magnetic flux path 12 and d axis
It is perpendicular.
In the present embodiment, by the way that holding tank to be arranged to the set-up mode along q direction of principal axis so that q axis magnetic fluxs are without hindrance
Circulation, can effectively increase the difference of the magnetic flux between d axis, q axis so that the motor with the rotor structure can produce more
Big reluctance torque, increases the output torque and efficiency of motor, so as to improve the performance of motor.Using the pressure of the rotor structure
Contracting machine, it is efficient since motor is contributed greatly, therefore a kind of high-performance constant speed compressor can be provided.
Fig. 7 is that reluctance motor and the contrast of prior art motor torque curve are moved in asynchronous synchronization in the present embodiment
Figure, under same stator scheme and electric current, the technical solution motor of the application contribute will be than in the prior art motor it is high by 15%, electricity
Machine, which is contributed, to be increased, electric efficiency lifting.
Fig. 8 show in embodiment different magnetic and hinders ratio and motor output relation, motor output maximum when magnetic barrier is than being 0.42,
Than too big or too small, motor is contributed can decline magnetic barrier, and suitable magnetic barrier compares motor output and has a great influence.
In above-mentioned optimal embodiment, the d axis outer surface grooves of rotor core are removed, i.e., rotor outer surface is full circle,
Using holding tank so that the without hindrance circulation of q axis magnetic fluxs, d axis magnetic fluxs obstruct completely, increase d axis, the difference of q axis magnetic flux, can also
Obtain than the prior art motor will be good technique effect.
Than that described above, it is also necessary to which explanation is " one embodiment ", " another implementation spoken of in the present specification
Example ", " embodiment " etc., refer to that the specific features, structure or the feature that combine embodiment description are included in the application summary
Property description at least one embodiment in.It is not necessarily to refer to same reality that statement of the same race, which occur, in multiple places in the description
Apply example.Furthermore, it is understood that when describing a specific features, structure or feature with reference to any embodiment, what is advocated is knot
Other embodiment is closed to realize that this feature, structure or feature are also fallen within the scope of the present invention.
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and does not have the portion being described in detail in some embodiment
Point, it may refer to the associated description of other embodiment.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, for the skill of this area
For art personnel, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (18)
- A kind of 1. rotor structure, it is characterised in that including：Rotor body (10), offers holding tank (11) on the rotor body (10), the holding tank (11) be it is multiple, it is multiple The holding tank (11) extends along the arranged circumferentially spaced of the rotor body (10), the holding tank (11) along q direction of principal axis, The first magnetic flux path (12), the flow direction of first magnetic flux path (12) are formed between the two neighboring holding tank (11) It is parallel with q direction of principal axis, and the flow direction of first magnetic flux path (12) and d axis are perpendicular.
- 2. rotor structure according to claim 1, it is characterised in that the rotor body (10) is additionally provided with magnetic barrier slit The extension of q direction of principal axis is prolonged at groove (13), the both ends of magnetic barrier slit groove (13), the first end of the magnetic barrier slit groove (13) with it is multiple A holding tank (11) in the holding tank (11) is corresponding, the second end of described magnetic barrier slit groove (13) with it is multiple Another described holding tank (11) in the holding tank (11) is corresponding, the magnetic of the holding tank (11) corresponding thereto Formed with every bridge (20) between barrier slit groove (13).
- 3. rotor structure according to claim 2, it is characterised in that the magnetic barrier slit groove (13) is multiple, Duo Gesuo State magnetic barrier slit groove (13) to be positioned apart from along d direction of principal axis, the second magnetic is formed between the two neighboring magnetic barrier slit groove (13) Circulation passage (14), each described magnetic barrier slit groove (13) are corresponding with two holding tanks (11).
- 4. rotor structure according to claim 3, it is characterised in thatMultiple magnetic barrier slit grooves (13) are symmetrically arranged at least one in q axis and d axis, and/orMultiple holding tanks (11) are symmetrically arranged at least one in q axis and d axis.
- 5. rotor structure according to claim 3, it is characterised in that also set up on the outer circumferential surface of the rotor body (10) Fluted (30), the groove (30) are located on the outer surface of the d direction of principal axis of the rotor body (10).
- 6. rotor structure according to claim 5, it is characterised in that the groove (30) is two, two grooves (30) be arranged on the rotor body (10) on the axisymmetric outer circumferential surfaces of q.
- 7. rotor structure according to claim 5, it is characterised in that the groove (30) along the rotor body (10) The depth capacity of radial direction be H, wherein, 0.5 δ≤H ＜ δ, wherein, δ for the rotor body (10) and stator core it Between width of air gap.
- 8. rotor structure according to claim 5, it is characterised in that offer axis hole in the middle part of the rotor body (10) (40), the center of circle formed along the both ends of q direction of principal axis extension to line between the hole heart of the axis hole (40) of the groove (30) Angle is α, wherein, 20 °≤α≤45 °.
- 9. rotor structure according to claim 3, it is characterised in that formed between two adjacent holding tanks (11) First magnetic flux path (12), formed between the magnetic barrier slit groove (13) corresponding with this two holding tanks (11) Second magnetic flux path (14) form the magnetic circuit of connection, and the width of first magnetic flux path (12) is D1, described the The minimum widith of two magnetic flux paths (14) is D2, wherein, D1 >=D2.
- 10. rotor structure according to claim 1, it is characterised in that shape between two adjacent holding tanks (11) Into the width of first magnetic flux path (12) for crossing q axis be D3, wherein, D3 ＞ K, wherein, K for stator core stator tooth Width.
- 11. rotor structure according to claim 10, it is characterised in that offer axis in the middle part of the rotor body (10) Hole (40) and magnetic barrier slit groove (13), the hole wall of the axis hole (40) hinder the minimum range of the cell wall of slit groove (13) to the magnetic For D4, wherein, 0.5 × D3≤D4.
- 12. rotor structure according to claim 2, it is characterised in thatThe minimum range of outer circumferential surface of the cell wall of the holding tank (11) to the rotor body (10) is L1, wherein, 0.5 δ≤ L1 ＜ δ, and/orThe minimum widith every bridge (20) is L2, wherein, 0.5 δ≤L2 ＜ δ, δ is the rotor body (10) and stator core Between width of air gap.
- 13. rotor structure according to claim 5, it is characterised in that offer axis in the middle part of the rotor body (10) Hole (40), multiple magnetic barrier slit grooves (13) width and be m, the hole wall of the axis hole (40) to the groove (30) The minimum range of cell wall is m6, wherein, m/m6=Q, 0.3≤Q≤0.5.
- 14. rotor structure according to claim 5, it is characterised in thatThe bottom of the groove (30) is in the concave cambered surface of geometric center towards rotor body (10), or the groove (30) Bottom include at least one facing directly.
- 15. rotor structure according to claim 1, it is characterised in that the holding tank (11) is not led for accommodating conduction The material of magnetic.
- 16. rotor structure according to claim 1, it is characterised in that the holding tank (11) along q direction of principal axis extension Opposite two side walls are parallel with q axis.
- 17. a kind of asynchronous starting synchronous magnetic resistance motor, including rotor structure, it is characterised in that the rotor structure will for right Seek the rotor structure any one of 1 to 16.
- 18. a kind of compressor, including rotor structure, it is characterised in that the rotor structure is any one of claim 1 to 16 The rotor structure.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711244362.5A CN108011459A (en) | 2017-11-30 | 2017-11-30 | Rotor structure, asynchronous starting synchronous magnetic resistance motor and compressor |
| CN201811446031.4A CN109378956B (en) | 2017-11-30 | 2018-11-29 | Rotor structure, asynchronous starting synchronous reluctance motor and compressor |
| CN201811446032.9A CN109309415B (en) | 2017-11-30 | 2018-11-29 | Rotor structure, asynchronous starting synchronous reluctance motor and compressor |
| CN201811446039.0A CN109510345B (en) | 2017-11-30 | 2018-11-29 | Rotor structure, asynchronous starting synchronous reluctance motor and compressor |
| CN201811446006.6A CN109309414B (en) | 2017-11-30 | 2018-11-29 | Rotor structure, asynchronous starting synchronous reluctance motor and compressor |
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| CN201711244362.5A CN108011459A (en) | 2017-11-30 | 2017-11-30 | Rotor structure, asynchronous starting synchronous magnetic resistance motor and compressor |
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| CN201811446032.9A Active CN109309415B (en) | 2017-11-30 | 2018-11-29 | Rotor structure, asynchronous starting synchronous reluctance motor and compressor |
| CN201811446039.0A Active CN109510345B (en) | 2017-11-30 | 2018-11-29 | Rotor structure, asynchronous starting synchronous reluctance motor and compressor |
| CN201811446006.6A Active CN109309414B (en) | 2017-11-30 | 2018-11-29 | Rotor structure, asynchronous starting synchronous reluctance motor and compressor |
| CN201811446031.4A Active CN109378956B (en) | 2017-11-30 | 2018-11-29 | Rotor structure, asynchronous starting synchronous reluctance motor and compressor |
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| CN201811446006.6A Active CN109309414B (en) | 2017-11-30 | 2018-11-29 | Rotor structure, asynchronous starting synchronous reluctance motor and compressor |
| CN201811446031.4A Active CN109378956B (en) | 2017-11-30 | 2018-11-29 | Rotor structure, asynchronous starting synchronous reluctance motor and compressor |
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Cited By (5)
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Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07274460A (en) * | 1994-03-30 | 1995-10-20 | Kinshiro Naito | Synchronous apparatus |
| JP4098939B2 (en) * | 1999-12-22 | 2008-06-11 | 三菱電機株式会社 | Reluctance motor |
| JP2001258220A (en) * | 2000-03-10 | 2001-09-21 | Mitsubishi Electric Corp | Reluctance motor |
| KR100539151B1 (en) * | 2002-12-12 | 2005-12-26 | 엘지전자 주식회사 | Rotor for line-start reluctance motor |
| JP4265244B2 (en) * | 2003-03-14 | 2009-05-20 | 三菱電機株式会社 | Synchronous induction motor rotor manufacturing method, synchronous induction motor rotor mold |
| JP2005006416A (en) * | 2003-06-12 | 2005-01-06 | Mitsubishi Electric Corp | Self-starting reluctance motor |
| JP4193726B2 (en) * | 2004-02-24 | 2008-12-10 | 三菱電機株式会社 | Synchronous induction motor rotor and compressor |
| JP4763320B2 (en) * | 2005-03-09 | 2011-08-31 | 三菱電機株式会社 | Synchronous induction motor rotor and compressor |
| KR100876173B1 (en) * | 2006-12-28 | 2008-12-31 | 주식회사 포스코 | Rotor manufacturing method for reluctance motor using magnetic anisotropy of oriented electrical steel sheet |
| KR100900290B1 (en) * | 2007-03-09 | 2009-05-29 | 엘지전자 주식회사 | Motor |
| KR101006681B1 (en) * | 2008-07-16 | 2011-01-10 | 엘지전자 주식회사 | Motor |
| FI122757B (en) * | 2010-10-12 | 2012-06-29 | Abb Oy | Rotor for a synchronous reluctance machine and method for making a rotor for a synchronous reluctance machine |
| CN103208894B (en) * | 2012-01-11 | 2015-07-29 | 珠海格力电器股份有限公司 | Automatic start type synchronous magnetic resistance motor and rotor thereof |
| CN105122613B (en) * | 2013-02-01 | 2019-09-13 | Ksb 股份公司 | The manufacturing method of rotor, reluctance machine and rotor |
| CN204794628U (en) * | 2015-07-23 | 2015-11-18 | 珠海格力节能环保制冷技术研究中心有限公司 | Synchronous reluctance machine and compressor |
| CN105356804B (en) * | 2015-11-01 | 2017-11-24 | 河北工业大学 | Improve synchronous magnetic resistance motor salient pole than method |
| CN207638427U (en) * | 2017-11-30 | 2018-07-20 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor structure, asynchronous starting synchronous magnetic resistance motor and compressor |
-
2017
- 2017-11-30 CN CN201711244362.5A patent/CN108011459A/en active Pending
-
2018
- 2018-11-29 CN CN201811446032.9A patent/CN109309415B/en active Active
- 2018-11-29 CN CN201811446039.0A patent/CN109510345B/en active Active
- 2018-11-29 CN CN201811446006.6A patent/CN109309414B/en active Active
- 2018-11-29 CN CN201811446031.4A patent/CN109378956B/en active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109309414A (en) | 2019-02-05 |
| CN109309414B (en) | 2021-06-29 |
| CN109378956A (en) | 2019-02-22 |
| CN109510345B (en) | 2021-07-27 |
| CN109378956B (en) | 2020-04-21 |
| CN109309415B (en) | 2020-11-10 |
| CN109510345A (en) | 2019-03-22 |
| CN109309415A (en) | 2019-02-05 |
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