CN207573101U - Asynchronous starting synchronous magnetic resistance motor rotor, motor and compressor - Google Patents
Asynchronous starting synchronous magnetic resistance motor rotor, motor and compressor Download PDFInfo
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- CN207573101U CN207573101U CN201721776096.6U CN201721776096U CN207573101U CN 207573101 U CN207573101 U CN 207573101U CN 201721776096 U CN201721776096 U CN 201721776096U CN 207573101 U CN207573101 U CN 207573101U
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Abstract
The utility model provides a kind of asynchronous starting synchronous magnetic resistance motor rotor, motor and compressor.Wherein, asynchronous starting synchronous magnetic resistance motor rotor includes rotor core, and rotor core includes：First magnetic hinders structure, and including multigroup first magnetic barrier portion, each first magnetic barrier portion is arranged at intervals along the d axis of rotor core；Second magnetic hinders structure, hinder slot along the spaced connection magnetic of d axis including two, two connection magnetic hinder the both sides that slots are located at the first magnetic barrier structure respectively, arc groove of the connection magnetic barrier slot for the circumferentially extending along rotor core, and the cell wall at arc groove both ends is arranged in parallel with q axis.The utility model efficiently solves the problems, such as that the asynchronous starting synchronous magnetic resistance motor rotor of motor in the prior art is ineffective.
Description
Technical field
The utility model is related to technical field of motors, in particular to a kind of asynchronous starting synchronous magnetic resistance motor rotor,
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 generating reluctance torque by inductor rotor gap realizes that the permanent rotating speed of motor is run, so that motor is direct
Connecing power supply can starting operation.Asynchronous starting synchronous magnetic resistance motor does not use rare earth permanent magnet compared with asynchronous starting and permanent magnet motor
Material, also there is no demagnetization problems, and motor cost is low, good reliability.
In the prior art, as shown in Figure 1, the patent of Publication No. CN 1255925C provide it is a kind of cheap easy
The synchronous induction motor of starting and the manufacturing device of synchronous induction motor and manufacturing method, i.e., along the q axis of rotor core 1 '
And d axis directions are provided with the first slit portion 2 ' and the second slit portion 3 ' connected with the first slit portion 2 '.Wherein, in the second slit
Filling conductive material in portion 3 ' and the first slot portion 2 '.Linearly, the second slit portion 3 ' is along rotor core for first slit portion 2 '
1 ' circumferencial direction is arranged radially at equal intervals.
However, the above structure due to the second slit portion 3 ' is set so that the flow direction court between the second slit portion 3 '
To the surface flow perpendicular to rotor core 1 '.Second slit portion 3 ' hinders the circulation of magnetic flux q axis directions, particularly closer to
Second slit portion 1 ' of d axis, the magnetic flux obstruction of q axis is more apparent, and the circulation of d axis magnetic flux is more smooth, therefore the magnetic flux phase of d, q axis
Poor unobvious, salient pole is than little, and motor is contributed and efficiency is inadequate.
Utility model content
The main purpose of the utility model is that provide a kind of asynchronous starting synchronous magnetic resistance motor rotor, motor and compression
Machine, to solve the problems, such as that the asynchronous starting synchronous magnetic resistance motor rotor of motor in the prior art is ineffective.
To achieve these goals, one side according to the present utility model provides a kind of asynchronous starting synchronous reluctance
Rotor, including rotor core, rotor core includes：First magnetic hinders structure, including multigroup first magnetic barrier portion, each first magnetic barrier
Portion is arranged at intervals along the d axis of rotor core；Second magnetic hinder structure, including two along d axis it is spaced connection magnetic barrier slot, two
The both sides that magnetic barrier slot is located at the first magnetic barrier structure respectively are connected, connection magnetic barrier slot is the arc along the circumferentially extending of rotor core
Slot, and the cell wall at arc groove both ends is arranged in parallel with q axis.
Further, the both ends in part or all of first magnetic barrier portion are parallel to the q axis of rotor core.
Further, multigroup first magnetic barrier portion is one or more in straight-line groove or the second arc groove or special-shaped slot.
Further, the first magnetic barrier structure further includes：Multiple supplemental tanks, multiple supplemental tanks are respectively positioned at the first magnetic barrier portion
Between end and the outer edge of rotor core.
Further, the extending direction of supplemental tank is parallel to q axis.
Further, rotor core has the center through hole passed through for shaft, and part the first magnetic barrier portion is special-shaped slot, and each
Special-shaped slot includes the first straight slot connected in sequence, arc slot section and the second straight slot, and the first straight slot and the second straight slot are equal
Q axis is parallel to, the side that arc slot section is directed away from center through hole protrudes.
Further, the first magnetic barrier portion in part is straight-line groove, and straight-line groove is parallel to the setting of q axis, and straight-line groove is located at connection
Magnetic hinders between slot and special-shaped slot.
Further, the second magnetic barrier structure further includes：Four independent magnetic barrier slots, four independent magnetic barrier slots are distinguished in pairs
Positioned at the both sides of q axis, the extending direction of the independent magnetic barrier slot (32) is parallel to the q axis.
Further, hinder slot with two independent magnetic in group to set along d axial symmetry；And/or the independent magnetic barrier slot of different groups
It is set along q axial symmetry.
Further, between two adjacent supplemental tanks there is distance D1, there is distance between adjacent two arc slot sections
D2 meets D1 >=D2.
Further, distance D3 and distance D4 is respectively provided between independent magnetic barrier slot two supplemental tanks adjacent thereto, along d
Axis direction has distance D5 between straight-line groove arc slot section adjacent thereto, meets D3+D4 >=D5.
Further, there is distance D6 between two supplemental tanks of q axis, close to q axis two the first straight slots it
Between have distance D7, meet D6 >=D7.
Further, meet D6 between distance D6, distance D1, distance D3 and distance D4>D1 and/or D6>D3 and/or D6>
D4。
Further, along d axis directions, distance is respectively provided between the hole wall of center through hole two arc slot sections adjacent thereto
D8 and distance D9, meets D8+D9 >=D6.
Further, all connection magnetic barrier slot and all the sum of the groove width in the first magnetic barrier portion M, the hole wall of center through hole is with turning
Between the outer edge of sub- iron core there is distance m7, meet
Further, rotor core has the center through hole passed through for shaft, and part or all of first magnetic barrier portion is second
During arc groove, the second arc groove avoids center through hole setting, and the second arc groove is directed away from the side protrusion of center through hole.
Further, two connection magnetic hinder slot and are set along q axial symmetry；And/or connection magnetic hinders slot and is set along d axial symmetry.
Further, multigroup first magnetic barrier portion is set along q axial symmetry；And/or each first magnetic barrier portion is set along d axial symmetry.
Further, conductive un-conducted magnetic material is filled in the first magnetic barrier structure and/or second magnetic barrier structure.
Further, the both ends of rotor core further include cast aluminium end ring, and all connection magnetic is hindered slot, supplemental tank by cast aluminium end ring
And independent magnetic barrier slot connection, form mouse cage.
Further, the radian measure alpha of connection magnetic barrier slot meets 20 °≤α≤60 °.
Another aspect according to the present utility model provides a kind of motor, including above-mentioned asynchronous starting synchronous reluctance electricity
Machine rotor.
Further, motor further includes the stator being arranged on outside asynchronous starting synchronous magnetic resistance motor rotor, the stator of stator
There is air gap delta, asynchronous starting synchronous magnetic resistance motor turns between the rotor core of iron core and asynchronous starting synchronous magnetic resistance motor rotor
The independent magnetic barrier slot of son, be respectively provided between the supplemental tank of asynchronous starting synchronous magnetic resistance motor rotor and the outer edge of rotor core away from
From L1, meet 0.5 δ≤L1 ＜ δ.
Further, motor further includes the stator being arranged on outside asynchronous starting synchronous magnetic resistance motor rotor, the stator of stator
There is air gap delta, asynchronous starting synchronous magnetic resistance motor turns between the rotor core of iron core and asynchronous starting synchronous magnetic resistance motor rotor
Between the supplemental tank of son and the first magnetic barrier portion of asynchronous starting synchronous magnetic resistance motor rotor there is distance L2, meet 0.5 δ≤L2 ＜
δ。
Further, motor further includes the stator being arranged on outside asynchronous starting synchronous magnetic resistance motor rotor, the stator of stator
There is between the rotor core of iron core and asynchronous starting synchronous magnetic resistance motor rotor air gap delta, connection magnetic barrier slot and rotor core
Between outer edge there is distance L3, meet the δ of δ≤L3≤2.
Further, motor further includes the stator being arranged on outside asynchronous starting synchronous magnetic resistance motor rotor, and asynchronous starting is same
There is distance D6, the facewidth K and distance of the stator core of stator between two supplemental tanks of the close q axis of step magnetic resistance motor rotor
D6 meets D6>K.
Another aspect according to the present utility model provides a kind of compressor, including above-mentioned motor.
Using the technical solution of the utility model, asynchronous starting synchronous magnetic resistance motor rotor includes rotor core, rotor iron
Core includes the first magnetic barrier structure and the second magnetic barrier structure.Wherein, the first magnetic barrier structure includes multigroup first magnetic barrier portion, each first magnetic
Barrier portion is arranged at intervals along the d axis of rotor core.Second magnetic barrier structure include two along d axis it is spaced connection magnetic barrier slot, two
A connection magnetic barrier slot is located at the both sides of the first magnetic barrier structure respectively, and connection magnetic barrier slot is the arc along the circumferentially extending of rotor core
Slot, and the cell wall at arc groove both ends is arranged in parallel with q axis.In this way, the first magnetic barrier portion 21 is arranged at intervals along the d axis of rotor core 10
And extend towards q axis, the cell wall at the both ends of connection magnetic barrier slot 31 is arranged in parallel, and then increase asynchronous starting synchronous reluctance with q axis
The magnetic flux of rotor q axis directions so that the without hindrance circulation of magnetic flux of q axis directions, and the magnetic flux in d axis directions is hindered
Every, and then increase the d axis directions of asynchronous starting synchronous magnetic resistance motor rotor and the difference of the magnetic flux of q axis directions, improve asynchronous
The output power and working efficiency of dynamic synchronous magnetic resistance motor rotor.
In asynchronous starting synchronous magnetic resistance motor rotor operational process in this application, between each first magnetic barrier portion 21 and the
One magnetic barrier portion 21 can carry out magnetic flux flows in q axis directions between magnetic barrier slot 31 with connecting, ensure magnetic flux in q axis directions without
Circulation is hindered, d axis magnetic fluxs are blocked, and then increase the difference of the magnetic flux of d axis directions and q axis directions so that asynchronous starting synchronizes
Magnetic resistance motor rotor generates the reluctance torque of bigger, increases the output and working efficiency of motor.It is in addition, asynchronous in the present embodiment
Synchronous magnetic resistance motor rotor is started without using magnet, there is no demagnetization problems, improve asynchronous starting synchronous magnetic resistance motor rotor
Functional reliability, it is at low cost.
Description of the drawings
The accompanying drawings which form a part of this application are used to provide a further understanding of the present invention, this practicality
Novel illustrative embodiments and their description do not form the improper restriction to the utility model for explaining the utility model.
In the accompanying drawings：
Fig. 1 shows the vertical view of the rotor of motor of the prior art；
Fig. 2 shows the stereochemical structures of the embodiment one of asynchronous starting synchronous magnetic resistance motor rotor according to the present utility model
Schematic diagram；
Fig. 3 shows the vertical view of the asynchronous starting synchronous magnetic resistance motor rotor in Fig. 2；
Fig. 4 shows the vertical view after the removal cast aluminium end ring of the asynchronous starting synchronous magnetic resistance motor rotor in Fig. 3；
Fig. 5 shows the vertical view after the removal cast aluminium end ring of the asynchronous starting synchronous magnetic resistance motor rotor in Fig. 3；
Fig. 6 shows the vertical view of the embodiment one of synchronous magnetic resistance motor according to the present utility model；
Fig. 7 shows the vertical view of the embodiment two of asynchronous starting synchronous magnetic resistance motor rotor according to the present utility model；
Fig. 8 shows that the motor of synchronous magnetic resistance motor and synchronous magnetic resistance motor in the prior art in the utility model is contributed
Torque versus's curve graph；
Fig. 9 shows the magnetic barrier ratio of the synchronous magnetic resistance motor in the utility model and motor output relation curve；And
Figure 10 shows the starting speed curve of synchronous magnetic resistance motor under 0.85 times of rated motor, nominal torque.
Wherein, above-mentioned attached drawing is marked including the following drawings：
1 ', rotor core；2 ', first slit portion；3 ', second slit portion；10th, rotor core；11st, center through hole；21st,
One magnetic barrier portion；211st, the first straight slot；212nd, arc slot section；213rd, the second straight slot；214th, supplemental tank；31st, connection magnetic barrier slot；
32nd, independent magnetic barrier slot；40th, stator；50th, cast aluminium end ring.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the application can phase
Mutually combination.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
It should be pointed out that unless otherwise specified, all technical and scientific terms used in this application have and the application
The normally understood identical meanings of person of an ordinary skill in the technical field.
In the utility model in the case where not making to illustrate on the contrary, the noun of locality such as " upper and lower " used is typically to be directed to
For direction shown in the drawings or on vertical, vertical or gravity direction；Similarly, for ease of understanding
And description, " left and right " is typically for shown in the drawings left and right；" inside and outside " refers to the profile relative to each component in itself
It is inside and outside, but the above-mentioned noun of locality is not intended to limit the utility model.
In order to solve the problems, such as that the asynchronous starting synchronous magnetic resistance motor rotor of motor in the prior art is ineffective, this Shen
It please provide a kind of asynchronous starting synchronous magnetic resistance motor rotor, motor and compressor.
Embodiment one
As shown in Figures 2 to 5, asynchronous starting synchronous magnetic resistance motor rotor includes rotor core 10, and rotor core 10 includes
First magnetic hinders structure and the second magnetic barrier structure.Wherein, the first magnetic barrier structure includes multigroup first magnetic barrier portion 21, each first magnetic barrier portion
21 are arranged at intervals along the d axis of rotor core 10.Second magnetic barrier structure includes two and hinders slot 31 along the spaced connection magnetic of d axis,
Two connection magnetic barrier slots 31 are located at the both sides of the first magnetic barrier structure respectively, and connection magnetic barrier slot 31 is prolongs along the circumferential direction of rotor core 10
The arc groove stretched, and the cell wall at arc groove both ends is arranged in parallel with q axis.
Using the technical solution of the present embodiment, the d axis of the first magnetic barrier portion 21 along rotor core 10 is arranged at intervals and towards q axis
Extension, the cell wall at the both ends of connection magnetic barrier slot 31 are arranged in parallel, and then increase the magnetic flux of rotor q axis directions with q axis so that q
The without hindrance circulation of magnetic flux of axis direction, and the magnetic flux in d axis directions is obstructed, and then increase the d axis directions of rotor and q axis
The difference of the magnetic flux in direction improves the output power and working efficiency of asynchronous starting synchronous magnetic resistance motor rotor.
In asynchronous starting synchronous magnetic resistance motor rotor operational process in the present embodiment, between each first magnetic barrier portion 21 and
First magnetic barrier portion 21 can carry out magnetic flux flows in q axis directions between magnetic barrier slot 31 with connecting, and ensure the magnetic flux in q axis directions
Without hindrance circulation, d axis magnetic fluxs are blocked, and then increase the difference of the magnetic flux of d axis directions and q axis directions so that asynchronous starting is same
The reluctance torque that magnetic resistance motor rotor generates bigger is walked, increases the output and working efficiency of motor.It is in addition, different in the present embodiment
Step starts synchronous magnetic resistance motor rotor without using magnet, and there is no demagnetization problems, improve asynchronous starting synchronous magnetic resistance motor rotor
Functional reliability, it is at low cost.
In the present embodiment, reduce in the prior art to the magnetic of the q axis directions of asynchronous starting synchronous magnetic resistance motor rotor
Logical obstruction, and then the difference of increase d, q axis flux amount, improve output power of motor and efficiency.
In the present embodiment, the connection magnetic barrier slot 31 on 10 outermost layer of rotor core is further increased in d axis directions
Magnetic resistance reduces d axis magnetic flux, and can regard started squirrel-cage, for improving motor starting performance.
As shown in Figures 3 to 5, the both ends in part or all of first magnetic barrier portion 21 are parallel to the q axis of rotor core 10.This
Sample, at the both ends in the first magnetic barrier portion 21, above-mentioned setting causes the magnetic flux in d axis directions to be blocked, further increase d axis directions with
The difference of magnetic flux in q axis directions, and then more reluctance torque is generated, increase motor output and working efficiency.
As shown in Figures 3 to 5, part the first magnetic barrier portion 21 is straight-line groove, and part the first magnetic barrier portion 21 is special-shaped slot.This
Sample for different asynchronous starting synchronous magnetic resistance motor rotor dimensions, designs the first different magnetic barrier portions 21, and then improve
The utilization rate of rotor core 10 increases the magnetic flux in asynchronous starting synchronous magnetic resistance motor rotor q axis directions, obstructs asynchronous starting
The magnetic flux of synchronous magnetic resistance motor rotor d axis directions, and then increase difference therebetween, promote asynchronous starting synchronous reluctance electricity
The working performance of machine rotor.
As shown in figure 4, the first magnetic barrier structure further includes multiple supplemental tanks 214.Wherein, multiple supplemental tanks 214 are located at respectively
Between the end in the first magnetic barrier portion 21 and the outer edge of rotor core 10.In this way, it is transported in asynchronous starting synchronous magnetic resistance motor rotor
During row, supplemental tank 214 matches to merge with the first magnetic barrier portion 21 forms multiple magnetic flux flows channels between, increases asynchronous
Start the magnetic flux in synchronous magnetic resistance motor rotor q axis directions.Meanwhile it inserts in the supplemental tank 214 of conductive material and can generate
Induction torque realizes the starting of asynchronous starting synchronous magnetic resistance motor rotor, and is dragged in synchronization, and 214 and first magnetic barrier portion of supplemental tank
21 reasonable layout causes asynchronous starting synchronous magnetic resistance motor rotor to have good starting and runnability.
Specifically, supplemental tank 214 is in the periphery of rotor core 10, realization asynchronous starting.Further, supplemental tank 214
Extending direction is parallel to q axis, i.e., lower wall is parallel to q axis in supplemental tank 214, reduces magnetic flux d axis magnetic flux by supplemental tank 214,
Increase q axis flux amount.In this way, the first magnetic barrier portion 21 is in the inside of rotor core 10, adjacent thereto two in the first magnetic barrier portion 21
Supplemental tank 214 forms magnetic flux barrier in d axis directions, and magnetic flux path is formed in q axis directions, so that most of magnetic flux edge
Q axis directions flow, and hinder flowing of the magnetic flux in d axis directions, and the magnetic flux increased in both direction is poor, improve asynchronous starting and synchronize
The working efficiency and output of magnetic resistance motor rotor.
As shown in figure 4, above-mentioned setting so that the magnetic flux flowed through from supplemental tank 214 is flowed along the direction for being parallel to q axis
Logical, the magnetic flux in the d axis directions of asynchronous starting synchronous magnetic resistance motor rotor is blocked, and increases asynchronous starting synchronous magnetic resistance motor
The magnetic flux of the q axis directions of rotor, and then increase d axis directions and the difference of the magnetic flux in q axis directions so that asynchronous starting synchronizes
The reluctance torque of bigger is generated on magnetic resistance motor rotor, improves the working efficiency of asynchronous starting synchronous magnetic resistance motor rotor.
As shown in figure 4, rotor core 10 has the center through hole 11 passed through for shaft, part the first magnetic barrier portion 21 is abnormity
Slot, and each special-shaped slot includes the first straight slot 211 connected in sequence, arc slot section 212 and the second straight slot 213, and the first straight trough
Each parallel to q axis, the side that arc slot section 212 is directed away from center through hole 11 protrudes 211 and second straight slot 213 of section.
Specifically, in asynchronous starting synchronous magnetic resistance motor rotor operational process, magnetic flux passes through a supplemental tank successively
214th, the first straight slot 211, arc slot section 212, the second straight slot 213 and another supplemental tank 214, so that q axis directions
The without hindrance circulation of magnetic flux, the magnetic flux in d axis directions are blocked, and then increase the difference of the magnetic flux in d, q axis direction, generate bigger
Reluctance torque, increase the output and working efficiency of motor.
As shown in Figure 4 and Figure 5, straight-line groove is parallel to the setting of q axis, and straight-line groove be located at connection magnetic barrier slot 31 and special-shaped slot it
Between.Specifically, straight-line groove is two groups, and two groups of straight-line grooves are set along q axial symmetry.At straight-line groove, magnetic flux is along q axis direction streams
Dynamic, the magnetic flux in d axis directions is blocked, and the magnetic flux for ensureing to flow through from straight-line groove flows, and then increase d, q axis along q axis directions
The difference of magnetic flux on direction improves the output power of motor.
As shown in Figure 4 and Figure 5, the second magnetic barrier structure further includes four independent magnetic barrier slots 32.Wherein, four independent magnetic barrier slots
32 are located at q axis both sides respectively in pairs, are intervally installed, and company therebetween with two independent magnetic barrier slots 32 in group
Line is parallel to q axis, and independent magnetic hinders slot 32 between straight-line groove and special-shaped slot.Specifically, in asynchronous starting synchronous magnetic resistance motor
During rotor operation, independent magnetic barrier slot 32 does not coordinate with the first magnetic barrier portion 21, and magnetic flux line hinders upper and lower the two of slot 32 from independent magnetic
Side enters to rotor core 10, is flowed later along the channel between straight-line groove and special-shaped slot, ensures q axis direction magnetic flux streams
It is dynamic.Conductive un-conducted magnetic material is filled in four additional independence magnetic barrier slot, as started squirrel-cage, increases electric motor starting ability.
As shown in Figure 4 and Figure 5, hinder slot 32 with two independent magnetic in group to set along d axial symmetry, and the independent magnetic of different groups
Hinder slot 32 to set along q axial symmetry.Above-mentioned setting causes the magnetic flux barrier on rotor core 10 to be symmetrical arranged, so that magnetic flux pair
Claim setting, then so that asynchronous starting synchronous magnetic resistance motor rotor is more uniformly stressed, ensure asynchronous starting synchronous magnetic resistance motor
The even running of rotor reduces the vibration generated in asynchronous starting synchronous magnetic resistance motor rotor operational process and noise, improves and uses
Family usage experience.
As shown in figure 4, having distance D1 between two adjacent supplemental tanks 214, have between adjacent two arc slot sections 212
There is distance D2, meet D1 >=D2.Wherein, the shortest distances of the distance D2 between two adjacent arc slot sections 212.It is in this way, above-mentioned
Setting is not in magnetic flux supersaturation between can ensureing two adjacent supplemental tanks 214 so that magnetic flux is as far as possible along q axis directions
Circulation, and then increase the magnetic flux flow in q axis directions.
As shown in figure 4, independent magnetic is respectively provided with distance D3 and distance between hindering two supplemental tanks 214 adjacent thereto of slot 32
D4 along d axis directions, has distance D5, meets D3+D4 >=D5 between straight-line groove arc slot section 212 adjacent thereto.Wherein, distance
D5 is the shortest distance between straight-line groove arc slot section 212 adjacent thereto.In this way, above-mentioned setting can prevent independent magnetic barrier slot 32
Occurs magnetic flux supersaturation between two supplemental tanks 214 adjacent thereto so that magnetic flux circulates as far as possible along q axis directions, Jin Erzeng
Add the magnetic flux flow in q axis directions.
As shown in figure 4, there is distance D6 between two supplemental tanks 214 of q axis, close to two the first straight troughs of q axis
Between section 211 there is distance D7, meet D6 >=D7.In this way, above-mentioned setting can prevent close to q axis two supplemental tanks 214 it
Between occur magnetic flux supersaturation so that magnetic flux as far as possible along q axis directions circulate, and then increase q axis directions on magnetic flux flow.
As shown in figure 4, meet D6 between distance D6, distance D1, distance D3 and distance D4>D1、D6>D3, and D6>D4.This
Sample, above-mentioned setting cause q axis flux to focus more on q axis, are acted on stator and generate effective torque increase motor output, while also prevented
Only there is serious saturation in D6.
As shown in figure 5, along d axis directions, have respectively between the hole wall of center through hole 11 two arc slot sections 212 adjacent thereto
There is distance D8 and distance D9, meet D8+D9 >=D6.Wherein, distance D8 and distance D9 be center through hole 11 hole wall with it is adjacent
The shortest distance between two arc slot sections 212.In this way, above-mentioned setting can prevent adjacent thereto two of the hole wall of center through hole 11
Occur magnetic flux supersaturation between a arc slot section 212, hinder q axis flux flow.
As shown in figure 5, all connection magnetic barrier slot 31 and all the sum of the groove width in the first magnetic barrier portion 21 M, center through hole 11
Between the outer edge of hole wall and rotor core 10 there is distance m7, meetWherein, M m1, m2, m3, m4 and
The sum of m5.In this way, above-mentioned setting causes asynchronous starting synchronous magnetic resistance motor rotor that there is rational magnetic to hinder accounting, can not only protect
Enough magnetic barrier width are demonstrate,proved, effectively hinder the magnetic flux in d axis directions, it is ensured that rational magnetic flux path prevents magnetic flux mistake
Saturation increases the magnetic flux in q axis directions, and then increases motor salient pole ratio, increases magnetic resistance of motor torque, increases motor and contributes.
As shown in figure 9, when magnetic barrier is than being 0.41, the output of motor is maximum.It can be seen from the figure that magnetic barrier than too big or
Too small, motor output can decline.
As shown in Figure 4 and Figure 5, two connection magnetic hinder slot 31 and are set along q axial symmetry, and connect magnetic and hinder slot 31 along d axial symmetry
Setting.
As shown in Figures 3 to 5, multigroup first magnetic barrier portion 21 is set along q axial symmetry, and each first magnetic barrier portion 21 is along d axis pair
Claim setting.In this way, above-mentioned setting cause magnetic in rotor core 10 hinder be continuous, various shapes so that magnetic flux
Circulation is also continuous, various, so that asynchronous starting synchronous magnetic resistance motor rotor is more uniformly stressed, improves asynchronous
The operation stability of dynamic synchronous magnetic resistance motor rotor.
In the present embodiment, conductive un-conducted magnetic material is filled in 214 and second magnetic of supplemental tank hinders structure.Optionally, it leads
Electric un-conducted magnetic material is aluminium material.In this way, above-mentioned setting can ensure the normal starting of asynchronous starting synchronous magnetic resistance motor rotor.
Specifically, aluminium material is filled to cast aluminium is formed in slot corresponding on rotor core 10, to form the first magnetic barrier portion
21st, connection magnetic barrier slot 31, supplemental tank 214 and independent magnetic barrier slot 32, the purpose is in electric motor starting, generate sensing electric current, with
Stator current effect generates induction torque, rotates electric motor starting.
It should be noted that the material of conductive un-conducted magnetic material is without being limited thereto, or other kinds of material.
As shown in Figure 4 and Figure 5, the radian measure alpha of connection magnetic barrier slot 31 meets 20 °≤α≤60 °.In this way, above-mentioned setting can be into
One step increases the magnetic resistance in asynchronous starting synchronous magnetic resistance motor rotor d axis directions, reduces d axis magnetic flux, while insert conduction material
Material is as started squirrel-cage, for improving the starting performance of asynchronous starting synchronous magnetic resistance motor rotor.
In the present embodiment, hindered by rational magnetic and aluminum cast groove designs, should ensure rational magnetic barrier accounting design, again
Ensure that supersaturation cannot occur in the magnetic flux path between magnetic barrier, hinder magnetic flux flows, efficiently use asynchronous starting synchronous reluctance
Rotor space, as far as possible increase d, the difference of q axis flux amount.
As shown in Figures 2 and 3, asynchronous starting synchronous magnetic resistance motor rotor further includes cast aluminium end ring 50.Wherein, cast aluminium end ring
50 are located at the both ends of rotor core 10, and all connection magnetic is hindered slot 31, supplemental tank 214 and independent magnetic by cast aluminium end ring 50 hinders slot
32 connections, form mouse cage.
In the present embodiment, rotor core 10 is axially overrided to form by silicon steel sheet.
As shown in fig. 6, present invention also provides a kind of synchronous magnetic resistance motor, including above-mentioned asynchronous starting synchronous reluctance electricity
Machine rotor.In the present embodiment, synchronous magnetic resistance motor can realize asynchronous starting and synchronous operation, and pass through the first magnetic barrier structure
And second magnetic barrier structure increase poor with the magnetic flux in q axis directions in motor d axis directions, increase the salient pole ratio of motor, solve
The problem of asynchronous machine efficiency is low, and rotating speed is low realizes the operation of effective constant rotating speed.In addition, the synchronous magnetic resistance motor in the present embodiment
It is of high cost to also solve permanent magnet synchronous motor, the integrity problems such as magnet demagnetization, synchronous magnetic resistance motor without using rare-earth magnet and
Drive control device has the features such as at low cost, good reliability.
Specifically, sensing electric current is generated when synchronous magnetic resistance motor starts, in mouse cage, sense is generated with 40 function of current of stator
Answer torque so that synchronous magnetic resistance motor is started, rotated and operation of pulling in.
As shown in Figure 4 and Figure 6, synchronous magnetic resistance motor is further included to be arranged on outside asynchronous starting synchronous magnetic resistance motor rotor and be determined
Son 40, it is asynchronous with distance δ between the stator core of stator 40 and the rotor core 10 of asynchronous starting synchronous magnetic resistance motor rotor
Start the independent magnetic barrier slot 32 of synchronous magnetic resistance motor rotor, the supplemental tank 214 and rotor of asynchronous starting synchronous magnetic resistance motor rotor
Distance L1 is respectively provided between the outer edge of iron core 10, meets 0.5 δ≤L1 ＜ δ.Wherein, distance δ stator cores and rotor core 10
Between width of air gap.In this way, above-mentioned distance setting can reduce the supplemental tank 214 of asynchronous starting synchronous magnetic resistance motor rotor with
Leakage field (magnetic leakage flux) between the outer edge of rotor core 10 increases magnetic flux path magnetic flux, motor is contributed to contribute.
As shown in Figure 4 and Figure 6, synchronous magnetic resistance motor is further included to be arranged on outside asynchronous starting synchronous magnetic resistance motor rotor and be determined
Son 40, it is asynchronous with distance δ between the stator core of stator 40 and the rotor core 10 of asynchronous starting synchronous magnetic resistance motor rotor
It starts and has between the supplemental tank 214 of synchronous magnetic resistance motor rotor and the first magnetic barrier portion 21 of asynchronous starting synchronous magnetic resistance motor rotor
There is distance L2, meet 0.5 δ≤L2 ＜ δ.In this way, above-mentioned distance setting can reduce asynchronous starting synchronous magnetic resistance motor rotor
Leakage field (magnetic leakage flux) between supplemental tank 214 and the first magnetic barrier portion 21 of asynchronous starting synchronous magnetic resistance motor rotor increases magnetic
Circulation passage magnetic flux, contributes to motor to contribute.
As shown in Figure 4 and Figure 6, synchronous magnetic resistance motor is further included to be arranged on outside asynchronous starting synchronous magnetic resistance motor rotor and be determined
Son 40 has distance δ, connection between the stator core of stator 40 and the rotor core 10 of asynchronous starting synchronous magnetic resistance motor rotor
Magnetic has distance L3 between hindering the outer edge of slot 31 and rotor core 10, meets the δ of δ≤L3≤2.In this way, above-mentioned distance setting energy
Enough ensure the structural strength of asynchronous starting synchronous magnetic resistance motor rotor, extend asynchronous starting synchronous magnetic resistance motor rotor uses the longevity
Life ensures the normal operation of synchronous magnetic resistance motor.
As shown in Figure 5 and Figure 6, synchronous magnetic resistance motor is further included to be arranged on outside asynchronous starting synchronous magnetic resistance motor rotor and be determined
Son 40, with distance D6 between two supplemental tanks 214 of close the q axis of asynchronous starting synchronous magnetic resistance motor rotor, stator 40
The facewidth K and distance D6 of stator core meet D6>K.In this way, above-mentioned setting can prevent asynchronous starting synchronous magnetic resistance motor rotor
Close q axis two supplemental tanks 214 between magnetic flux supersaturation, while ensure that magnetic flux is efficiently entering stator tooth, form torque.
As shown in figure 8, under similary stator scheme and the function of current, the synchronous magnetic resistance motor in the present embodiment contribute than
Prior art is high by 10% or so, and motor, which is contributed, to be increased, and electric efficiency is promoted.
As shown in Figure 10, the synchronous magnetic resistance motor in the present embodiment can start synchronous operation in different initial positions, rise
Kinetic force meets requirement.
Present invention also provides a kind of compressor (not shown), including above-mentioned synchronous magnetic resistance motor.Using the present embodiment
In synchronous magnetic resistance motor so that the working performance and working efficiency of compressor can be promoted.
Embodiment two
Asynchronous starting synchronous magnetic resistance motor rotor in embodiment two and embodiment one difference lies in：First magnetic barrier portion 21
Structure it is different.
As shown in fig. 7, rotor core 10 has the center through hole 11 passed through for shaft, all the first magnetic barrier portion 21 is second
During arc groove, the second arc groove avoids center through hole 11 and sets, and the second arc groove is directed away from a pleurapophysis of center through hole 11
Go out.In this way, above-mentioned setting can eliminate the supplemental tank 214 of asynchronous starting synchronous magnetic resistance motor rotor and asynchronous starting synchronous reluctance
Flux leakage between first magnetic barrier portion 21 of rotor, and then increase the magnetic flux in q axis directions, increase d, q axis flux
Difference is measured, increases the torque of asynchronous starting synchronous magnetic resistance motor rotor so that the output of motor increases, working efficiency is carried
It rises.
In the present embodiment, the sum of M m1, m2, m3, m4, m5 and m6.
Embodiment three
Asynchronous starting synchronous magnetic resistance motor rotor in embodiment three and embodiment two difference lies in：Asynchronous starting synchronizes
Magnetic resistance motor rotor does not have independent magnetic and hinders slot 32.
In the present embodiment, asynchronous starting synchronous magnetic resistance motor rotor does not have independent magnetic barrier slot, in d axis directions, respectively
Supplemental tank forms magnetic flux barrier with corresponding first magnetic barrier portion；In q axis directions, formed between adjacent two groups of magnetic flux barriers
Magnetic flux flows channel so that magnetic flux circulates in q axis directions, can not circulate in d axis directions, and then increase d, q axis side
Upward magnetic flux difference so that asynchronous starting synchronous magnetic resistance motor rotor generate bigger reluctance torque, increase motor contribute and
Working efficiency.
Example IV
Asynchronous starting synchronous magnetic resistance motor rotor in example IV and embodiment one difference lies in：First magnetic hinders structure
The structure that is connected with the first magnetic barrier portion of supplemental tank it is different.
In the present embodiment, the supplemental tank of the first magnetic barrier structure is connected with the first magnetic barrier portion does not include supplemental tank, Er Qiesuo
Have in the first and second magnetic barrier structure and insert conductive un-conducted magnetic material.Specifically, part or all of first magnetic barrier portion is abnormity
Slot, at least two group of first magnetic barrier portion are straight-line groove.In this way, it is advised for different asynchronous starting synchronous magnetic resistance motor rotor sizes
Lattice design the first different magnetic barrier portions, and then improve the utilization rate of rotor core, increase asynchronous starting synchronous magnetic resistance motor rotor
Magnetic flux in q axis directions obstructs the magnetic flux of asynchronous starting synchronous magnetic resistance motor rotor d axis directions, and then increases the two
Between difference, promoted asynchronous starting synchronous magnetic resistance motor rotor working performance.
It can be seen from the above description that the above embodiments of the present invention achieve the following technical effects：
The d axis of first magnetic barrier portion along rotor core is arranged at intervals and extends towards q axis, the cell wall at the both ends of connection magnetic barrier slot
It is arranged in parallel with q axis, and then increases the magnetic flux of asynchronous starting synchronous magnetic resistance motor rotor q axis directions so that the magnetic of q axis directions
Lead to without hindrance circulation, and the magnetic flux in d axis directions is obstructed, and then increase the d of asynchronous starting synchronous magnetic resistance motor rotor
The difference of the magnetic flux of axis direction and q axis directions improves the output power and working efficiency of asynchronous starting synchronous magnetic resistance motor rotor.
In asynchronous starting synchronous magnetic resistance motor rotor operational process in this application, between each first magnetic barrier portion and first
Magnetic barrier portion can carry out magnetic flux flows in q axis directions between magnetic barrier slot with connecting, and ensure the without hindrance stream of magnetic flux in q axis directions
Logical, d axis magnetic fluxs are blocked, and then increase the difference of the magnetic flux of d axis directions and q axis directions so that asynchronous starting synchronous reluctance electricity
Machine rotor generates the reluctance torque of bigger, increases the output and working efficiency of motor.In addition, the asynchronous starting in the application synchronizes
Magnetic resistance motor rotor does not use rare-earth magnet, thereby reduces the processing cost of asynchronous starting synchronous magnetic resistance motor rotor, improves
The functional reliability of asynchronous starting synchronous magnetic resistance motor rotor.
Obviously, above-mentioned described embodiment is only the embodiment of the utility model part rather than the reality of whole
Apply example.Based on the embodiment in the utility model, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained should all belong to the range of the utility model protection.
It should be noted that term used herein above is merely to describe specific 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 " packet
Include " when, indicate existing characteristics, step, work, device, component and/or combination thereof.
It should be noted that term " first " in the description and claims of this application and above-mentioned attached drawing, "
Two " etc. be the object for distinguishing similar, and specific sequence or precedence are described without being used for.It should be appreciated that it uses in this way
Data can be interchanged in the appropriate case, so that presently filed embodiment described herein can be in addition to illustrating herein
Or the sequence other than those of description is implemented.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (27)
1. a kind of asynchronous starting synchronous magnetic resistance motor rotor, including rotor core (10), which is characterized in that the rotor core
(10) include：
First magnetic hinders structure, and including multigroup first magnetic barrier portion (21), each first magnetic barrier portion (21) is along the rotor core
(10) d axis is arranged at intervals；
Second magnetic hinders structure, and including two along the spaced connection magnetic barrier slot (31) of the d axis, two connection magnetic hinder slots
(31) it is located at the both sides of first magnetic barrier structure respectively, the connection magnetic barrier slot (31) is the week along the rotor core (10)
To the first arc groove of extension, and the cell wall at the first arc groove both ends is arranged in parallel with q axis.
2. asynchronous starting synchronous magnetic resistance motor rotor according to claim 1, which is characterized in that partly or entirely described the
The both ends in one magnetic barrier portion (21) are parallel to the q axis of the rotor core (10).
3. asynchronous starting synchronous magnetic resistance motor rotor according to claim 1, which is characterized in that multigroup first magnetic barrier
Portion (21) is one or more in straight-line groove or the second arc groove or special-shaped slot.
4. asynchronous starting synchronous magnetic resistance motor rotor according to claim 3, which is characterized in that first magnetic hinders structure
It further includes：
Multiple supplemental tanks (214), multiple supplemental tanks (214) respectively positioned at the first magnetic barrier portion (21) end with it is described
Between the outer edge of rotor core (10).
5. asynchronous starting synchronous magnetic resistance motor rotor according to claim 4, which is characterized in that the supplemental tank (214)
Extending direction be parallel to the q axis.
6. asynchronous starting synchronous magnetic resistance motor rotor according to claim 4, which is characterized in that the rotor core (10)
With the center through hole (11) passed through for shaft, part the first magnetic barrier portion (21) is the special-shaped slot, and each abnormity
Slot includes the first straight slot (211) connected in sequence, arc slot section (212) and the second straight slot (213), and first straight slot
(211) and second straight slot (213) is each parallel to the q axis, and the arc slot section (212) is directed away from the center through hole
(11) side protrudes.
7. asynchronous starting synchronous magnetic resistance motor rotor according to claim 6, which is characterized in that part the first magnetic barrier
Portion (21) is the straight-line groove, and the straight-line groove is parallel to the q axis setting, and the straight-line groove is located at the connection magnetic barrier slot
(31) between the special-shaped slot.
8. asynchronous starting synchronous magnetic resistance motor rotor according to claim 7, which is characterized in that second magnetic hinders structure
It further includes：
Four independent magnetic barrier slots (32), four independent magnetic barrier slots (32) are located at the both sides of the q axis, institute respectively in pairs
The extending direction for stating independent magnetic barrier slot (32) is parallel to the q axis.
9. asynchronous starting synchronous magnetic resistance motor rotor according to claim 8, which is characterized in that
It is set with the independent magnetic barrier slot (32) of two in group along the d axial symmetry；And/or
The independent magnetic barrier slot (32) of difference group is set along the q axial symmetry.
10. asynchronous starting synchronous magnetic resistance motor rotor according to claim 8, which is characterized in that described in adjacent two
Between supplemental tank (214) there is distance D1, there is distance D2 between adjacent two arc slot sections (212), meet D1 >=D2.
11. asynchronous starting synchronous magnetic resistance motor rotor according to claim 10, which is characterized in that the independent magnetic barrier slot
(32) distance D3 and distance D4 is respectively provided between adjacent thereto two supplemental tanks (214), along the d axis directions, institute
Stating has distance D5 between the straight-line groove arc slot section (212) adjacent thereto, meets D3+D4 >=D5.
12. asynchronous starting synchronous magnetic resistance motor rotor according to claim 11, which is characterized in that close to the q axis
Between two supplemental tanks (214) there is distance D6, have between two first straight slots (211) of the q axis
There is distance D7, meet D6 >=D7.
13. asynchronous starting synchronous magnetic resistance motor rotor according to claim 12, which is characterized in that the distance D6, institute
It states and meets D6 between distance D1, the distance D3 and the distance D4>D1 and/or D6>D3 and/or D6>D4.
14. asynchronous starting synchronous magnetic resistance motor rotor according to claim 12, which is characterized in that along the d axis directions,
Distance D8 and distance are respectively provided between the hole wall of the center through hole (11) two arc slot sections (212) adjacent thereto
D9 meets D8+D9 >=D6.
15. asynchronous starting synchronous magnetic resistance motor rotor according to claim 6, which is characterized in that all connection magnetic
Hinder slot (31) and all the sum of groove width of the first magnetic barrier portion (21) M, hole wall and the rotor of the center through hole (11)
Between the outer edge of iron core (10) there is distance m7, meet
16. asynchronous starting synchronous magnetic resistance motor rotor according to claim 3, which is characterized in that the rotor core
(10) there is the center through hole (11) passed through for shaft, when the part or all of first magnetic barrier portion (21) is the second arc groove,
Second arc groove avoids center through hole (11) setting, and the second arc groove is directed away from the center through hole (11)
Side protrudes.
17. the asynchronous starting synchronous magnetic resistance motor rotor according to any one of claim 1 to 16, which is characterized in that
Two connection magnetic barrier slots (31) are set along the q axial symmetry；And/or
The connection magnetic barrier slot (31) is set along the d axial symmetry.
18. the asynchronous starting synchronous magnetic resistance motor rotor according to any one of claim 1 to 16, which is characterized in that
Multigroup first magnetic barrier portion (21) is set along the q axial symmetry；And/or
Each first magnetic barrier portion (21) is set along the d axial symmetry.
19. the asynchronous starting synchronous magnetic resistance motor rotor according to any one of claim 1 to 16, which is characterized in that institute
State the conductive un-conducted magnetic material of filling in the first magnetic barrier structure and/or second magnetic barrier structure.
20. the asynchronous starting synchronous magnetic resistance motor rotor according to any one of claim 8 to 14, which is characterized in that institute
The both ends for stating rotor core (10) further include cast aluminium end ring (50), and the cast aluminium end ring (50) all will hinder slot by the connection magnetic
(31), the supplemental tank (214) and the independent magnetic barrier slot (32) connect, and form mouse cage.
21. the asynchronous starting synchronous magnetic resistance motor rotor according to any one of claim 1 to 16, which is characterized in that institute
The radian measure alpha for stating connection magnetic barrier slot (31) meets 20 °≤α≤60 °.
22. a kind of motor, which is characterized in that including the asynchronous starting synchronous reluctance electricity described in any one of claim 1 to 21
Machine rotor.
23. motor according to claim 22, which is characterized in that the motor further includes that be arranged on the asynchronous starting same
The stator (40) outside magnetic resistance motor rotor is walked, stator core and the asynchronous starting synchronous magnetic resistance motor of the stator (40) turn
There is air gap delta, the independent magnetic barrier slot (32) of the asynchronous starting synchronous magnetic resistance motor rotor, institute between the rotor core (10) of son
State be respectively provided between the supplemental tank (214) of asynchronous starting synchronous magnetic resistance motor rotor and the outer edge of the rotor core (10) away from
From L1, meet 0.5 δ≤L1 ＜ δ.
24. motor according to claim 22, which is characterized in that the motor further includes that be arranged on the asynchronous starting same
The stator (40) outside magnetic resistance motor rotor is walked, stator core and the asynchronous starting synchronous magnetic resistance motor of the stator (40) turn
Son rotor core (10) between have air gap delta, the supplemental tank (214) of the asynchronous starting synchronous magnetic resistance motor rotor with it is described
Between first magnetic barrier portion (21) of asynchronous starting synchronous magnetic resistance motor rotor there is distance L2, meet 0.5 δ≤L2 ＜ δ.
25. motor according to claim 22, which is characterized in that the motor further includes that be arranged on the asynchronous starting same
The stator (40) outside magnetic resistance motor rotor is walked, stator core and the asynchronous starting synchronous magnetic resistance motor of the stator (40) turn
There is air gap delta between the rotor core (10) of son, the connection magnetic barrier slot (31) and the outer edge of the rotor core (10) it
Between there is distance L3, meet the δ of δ≤L3≤2.
26. motor according to claim 22, which is characterized in that the motor further includes that be arranged on the asynchronous starting same
Walk the stator (40) outside magnetic resistance motor rotor, two supplemental tanks of the close q axis of the asynchronous starting synchronous magnetic resistance motor rotor
(214) there is distance D6, the facewidth K and the distance D6 of the stator core of the stator (40) meet D6 between>K.
27. a kind of compressor, which is characterized in that including the motor described in any one of claim 22 to 26.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721776096.6U CN207573101U (en) | 2017-12-14 | 2017-12-14 | Asynchronous starting synchronous magnetic resistance motor rotor, motor and compressor |
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| CN201721776096.6U CN207573101U (en) | 2017-12-14 | 2017-12-14 | Asynchronous starting synchronous magnetic resistance motor rotor, motor and compressor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109347224A (en) * | 2017-12-14 | 2019-02-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Asynchronous starting synchronous magnetic resistance motor rotor, motor and compressor |
-
2017
- 2017-12-14 CN CN201721776096.6U patent/CN207573101U/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109347224A (en) * | 2017-12-14 | 2019-02-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Asynchronous starting synchronous magnetic resistance motor rotor, motor and compressor |
| CN109347223A (en) * | 2017-12-14 | 2019-02-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Asynchronous starting synchronous magnetic resistance motor rotor structure, motor and compressor |
| CN109494903A (en) * | 2017-12-14 | 2019-03-19 | 珠海格力节能环保制冷技术研究中心有限公司 | Asynchronous starting synchronous magnetic resistance motor rotor, motor and compressor |
| WO2019114797A1 (en) * | 2017-12-14 | 2019-06-20 | 珠海格力节能环保制冷技术研究中心有限公司 | Asynchronous starting synchronous reluctance motor rotor structure, motor and compressor |
| WO2019114799A1 (en) * | 2017-12-14 | 2019-06-20 | 珠海格力节能环保制冷技术研究中心有限公司 | Asynchronous starting and synchronous reluctance electric motor rotor, electric motor and compressor |
| WO2019114803A1 (en) * | 2017-12-14 | 2019-06-20 | 珠海格力节能环保制冷技术研究中心有限公司 | Asynchronous-starting synchronous magnetic reluctance motor rotor, motor and compressor. |
| WO2019114802A1 (en) * | 2017-12-14 | 2019-06-20 | 珠海格力节能环保制冷技术研究中心有限公司 | Asynchronous starting synchronous reluctance motor rotor, motor and compressor |
| WO2019114795A1 (en) * | 2017-12-14 | 2019-06-20 | 珠海格力节能环保制冷技术研究中心有限公司 | Asynchronous starting and synchronous reluctance electric motor rotor, electric motor and compressor |
| WO2019114798A1 (en) * | 2017-12-14 | 2019-06-20 | 珠海格力节能环保制冷技术研究中心有限公司 | Asynchronous starting and synchronous reluctance electric motor rotor, electric motor and compressor |
| WO2019114801A1 (en) * | 2017-12-14 | 2019-06-20 | 珠海格力节能环保制冷技术研究中心有限公司 | Asynchronous start and synchronous reluctance motor rotor, motor, and compressor |
| US11387694B2 (en) | 2017-12-14 | 2022-07-12 | Green Refrigeration Equipment Engineering Research Center Of Zhuhai Gree Co., Ltd. | Asynchronous starting and synchronous reluctance electric motor rotor, electric motor and compressor |
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