CN108023419A - Alternating-pole motor and compressor with same - Google Patents
Alternating-pole motor and compressor with same Download PDFInfo
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- CN108023419A CN108023419A CN201711279420.8A CN201711279420A CN108023419A CN 108023419 A CN108023419 A CN 108023419A CN 201711279420 A CN201711279420 A CN 201711279420A CN 108023419 A CN108023419 A CN 108023419A
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- pole motor
- air channel
- alternately
- rotor core
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- 230000004888 barrier function Effects 0.000 claims description 48
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 9
- 238000010276 construction Methods 0.000 claims description 9
- 241000276425 Xiphophorus maculatus Species 0.000 claims description 7
- 210000002421 cell wall Anatomy 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims 1
- 230000004907 flux Effects 0.000 abstract description 9
- 230000000903 blocking effect Effects 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 7
- 239000011148 porous material Substances 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000003405 preventing effect Effects 0.000 description 3
- 208000032366 Oversensing Diseases 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
-
- 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
- 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)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention provides a motor with alternating poles and a compressor with the motor. The alternating-pole motor comprises a rotor, the rotor comprises a plurality of sections of sub-rotors, the plurality of sections of sub-rotors are connected along the axis direction of the rotor, the rotor further comprises a blocking part, and the blocking part is arranged between the two adjacent sub-rotors. The invention effectively solves the problem of serious magnetic flux leakage in the alternating-current motor in the prior art.
Description
Technical field
The present invention relates to technical field of motors, in particular to a kind of alternately pole motor and has its compressor.
Background technology
8 traditional pole permanent magnet motors have 8 permanent magnets, and 8 permanent magnets are around the centrally disposed of rotor core, adjacent
Permanent magnet there is the different direction of magnetizations, then from the magnetic line of force that one piece of permanent magnet N pole is sent via reaching phase after stator core
The S poles of adjacent permanent magnet.One magnetic line of force passes through at least two permanent magnets in the loop.Therefore, the operating point of permanent magnet is higher,
Permanent magnet increases motor cost using insufficient.
In the prior art, to solve the above-mentioned problems, there is a kind of segmented Consequent pole permanent magnet motor, multipiece rotor
It is axially connected together.Specifically, still by taking 8 pole motors as an example, only 4 permanent-magnet poles, and adjacent permanent magnet has thereon
The identical direction of magnetization.Have permanent magnet mounting groove is known as permanent-magnet pole, and the soft magnetic materials between two permanent magnet mounting grooves is by forever
Magnetic pole is magnetized into and the opposite polarity polarity of permanent-magnet pole.
However, the permanent magnet end of alternating pole motor of segmented is directly contacted with the rotor core of another section of rotor, leakage
Magnetic-path magnetic resistance very little, brow leakage increased dramatically, and thereby reduce the output torque of motor, reduce the operation effect of motor
Rate.
The content of the invention
It is a primary object of the present invention to provide a kind of alternately pole motor and there is its compressor, to solve the prior art
Middle the problem of alternately leakage field is more serious in the motor of pole.
To achieve these goals, according to an aspect of the invention, there is provided a kind of alternately pole motor, alternating pole motor
Including rotor, rotor includes more cross-talk rotors, and more cross-talk rotors are connected along the axis direction of rotor, and rotor further includes barrier
Portion, barrier portion are arranged between two adjacent sub- rotors.
Further, barrier portion is platy structure.
Further, each sub- rotor includes rotor core and the permanent magnet being arranged in the mounting groove of rotor core, permanent magnetism
The ratio between the thickness t1 of body and the thickness t3 of platy structure meet
Further, each sub- rotor includes rotor core and the permanent magnet being arranged in the mounting groove of rotor core, and edge turns
The axis direction of sub- iron core is provided with air channel, and barrier portion has the through hole connected with air channel.
Further, air channel is the annular groove or one section of arc groove or multistage arc groove being coaxially disposed with rotor core.
Further, when air channel is one section of arc groove, have between the first end of arc groove and the second end of arc groove
There are the ratio between distance t2, the groove width w2 and distance t2 of arc groove satisfactions
Further, when air channel is multistage arc groove, there is distance t3, arc groove between adjacent two sections of arc grooves
Groove width w2 and the ratio between distance t3 meet
Further, rotor core has the via passed through for shaft, and air channel is close to the cell wall of via and the hole of via
There is distance w1, air channel has distance w3 between the cell wall and permanent magnet of permanent magnet, and meets 3w3≤2w2 between wall
≤w1。
Further, the part between two arc grooves of arbitrary neighborhood is bridge part, and bridge part is relative to by bridging
The axial plane of the rotor core in portion is obliquely installed.
Further, air channel is polygon groove or one section of L-shaped groove or multistage L-shaped groove.
Further, air channel is multistage, and air channel is symmetrical arranged along the central axis of rotor core.
Further, rotor further includes not magnetic conduction construction, and magnetic conduction construction is not filled in the subregion or complete of air channel
In portion region.
Further, magnetic conduction construction is not formed from a resin.
Further, the outer surface of barrier portion is alignd with the outer surface of rotor core.
Further, rotor further includes two end caps, and two end caps are separately positioned on the both ends of rotor core, fastener according to
It is secondary pass through an end cap, a cross-talk rotor, barrier portion and another cross-talk rotor after be fixed on another end cap.
Further, barrier portion and/or end cap are made of not magnetic conductive metal material.
According to another aspect of the present invention, there is provided a kind of compressor, including above-mentioned alternating pole motor.
Apply the technical scheme of the present invention, alternately pole motor includes rotor, and rotor includes more cross-talk rotors, and more cross-talks turn
Son is connected along the axis direction of rotor, and rotor further includes barrier portion, and barrier portion is arranged between two adjacent sub- rotors.This
Sample, in alternately pole motor operation course, barrier portion can increase the magnetic resistance of leakage magnetic circuit between more cross-talk rotors, and then weaken phase
Leakage field degree between two adjacent cross-talk rotors, weakens the leakage field degree of rotor, finally weakens the leakage field degree of alternately pole motor,
And then the output torque of alternately pole motor is improved, the working performance of lifting alternating pole 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 according to the present invention the alternately decomposition texture schematic diagram of the rotor of the embodiment one of pole motor；
Fig. 2 shows the top view of a cross-talk rotor of the rotor in Fig. 1；
Fig. 3 shows the top view of another cross-talk rotor of the rotor in Fig. 1；
Fig. 4 shows the top view of the barrier portion of the rotor in Fig. 1；
Fig. 5 shows the top view of the end cap of the rotor in Fig. 1；
Fig. 6 shows according to the present invention the alternately top view of a cross-talk rotor of the embodiment two of pole motor；
Fig. 7 shows according to the present invention the alternately top view of another cross-talk rotor of the embodiment two of pole motor；
Fig. 8 shows according to the present invention the alternately top view of a cross-talk rotor of the embodiment three of pole motor；
Fig. 9 shows according to the present invention the alternately top view of a cross-talk rotor of the embodiment five of pole motor；
Figure 10 shows alternating pole motor and the radial direction electromagnetic exciting of the prior art for replacing pole motor in the application
The comparison diagram of power；
Figure 11 is shown is not provided with barrier portion among the rotor that alternating pole motor, rotor in the application are not segmented and are segmented
Comparison diagram；
Figure 12 shows the leakage field sectional view of sectional type rotor in the prior art.
Wherein, above-mentioned attached drawing is marked including the following drawings：
10th, sub- rotor；11st, rotor core；111st, mounting groove；112nd, air channel；113rd, via；114th, bridge part；115、
Yoke portion；12nd, permanent magnet；20th, barrier portion；21st, medium pore；30th, end cap；31st, end cap groove；32nd, ending cover hole；33rd, end cap bridge part.
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 is 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 present invention, in the case where not making conversely explanation, the noun of locality used is typically directed to attached drawing as " upper and lower "
For shown direction, or on vertical, vertical or gravity direction；Similarly, for ease of understanding and retouch
State, " left and right " is typically for shown in the drawings left and right；" inside and outside " refers to the inside and outside of the profile relative to each component in itself,
But the above-mentioned noun of locality is not intended to limit the invention.
It is more serious in order to solve the problems, such as to replace in the prior art leakage field in the motor of pole, this application provides one kind alternately
Pole motor and there is its compressor.
Embodiment one
As shown in Figure 1 to Figure 3, alternately pole motor includes rotor, and rotor includes more cross-talk rotors 10, and more cross-talk rotors 10
Connected along the axis direction of rotor, rotor further includes barrier portion 20, and barrier portion 20 is arranged between the sub- rotor 10 of adjacent two.
Using the technical solution of the present embodiment, in alternately pole motor operation course, barrier portion 20 can increase more cross-talks
The magnetic resistance of leakage magnetic circuit between rotor 10, and then weaken the leakage field degree between two adjacent cross-talk rotors 10, weaken the leakage of rotor
Magnetic degree, the final leakage field degree for weakening alternately pole motor, and then the output torque of alternately pole motor is improved, lifting is alternately extremely electric
The working performance of machine.
As shown in Figure 1 and Figure 4, barrier portion 20 is platy structure.In this way, the barrier portion 20 of platy structure can reduce it is adjacent
The distance between sub- rotor 10, relatively increase the magnetic flux of rotor, increase intersegmental between two adjacent cross-talk rotors 10
Magnetic resistance.Said structure make it that the structure of barrier portion 20 is simple, is easily worked, and then reduces the processing cost of alternately pole motor.
As shown in Figures 2 and 3, each sub- rotor 10 includes rotor core 11 and is arranged on the mounting groove 111 of rotor core 11
Interior permanent magnet 12, the ratio between the thickness t1 of permanent magnet 12 and the thickness t3 of platy structure meetSpecifically,
When ratio is too small, there is no restriction effect to the axial leakage field of alternately pole motor；When ratio is excessive, effective length of rotor core 11
Degree can shorten, and cause the magnetic flux of rotor core smaller.In this way, above-mentioned value range can effectively lift alternating pole motor
Air gap flux density, the output power of increase alternating pole motor, reduces the loss of alternately pole motor.
In the present embodiment, barrier portion 20 has the medium pore 21 passed through for shaft.In this way, above-mentioned setting causes alternately pole
The structure of motor is compacter, simply.
As shown in figure 4, each sub- rotor 10 includes rotor core 11 and is arranged in the mounting groove 111 of rotor core 11 forever
Magnet 12, is provided with air channel 112, barrier portion 20 has what is connected with air channel 112 to lead to along the axis direction of rotor core 11
Hole.Permanent magnet 12 has like pole with the part rotor iron core 11 positioned at the outside of mounting groove 111, which claims
For permanent-magnet pole.
As shown in figure 12, normally, since the segmented assembling of rotor can produce two parts leakage field：
Part I leakage field B1 is the brow leakage of permanent magnet 12, although conventional, alternately there is also brow leakage for pole motor
B3, but due to only having air in its leakage path, so leakage magnetic flux very little.But the permanent magnet of the alternating pole motor of segmented
12 ends are directly contacted with the rotor core 11 of another cross-talk rotor 10, and leakage path magnetic resistance very little, brow leakage, which leads to, drastically to be increased
Greatly；
Part II leakage field B1 is by the permanent magnet 12 of upper half cross-talk rotor 10, upper half cross-talk rotor yoke, shaft, lower half
10 yoke portion of cross-talk rotor, lower half cross-talk rotor 10 permanent magnet 12 after enter air gap, stator be formed into a loop.
Specifically, set for above-mentioned Part I leakage field B1, the motor of the present embodiment between two cross-talk rotors 10
Barrier portion 20 plays good effect to increase the magnetic resistance of leakage magnetic circuit.The radially-outer surface of barrier portion 20 has and sub- rotor
The shape that 10 outer surface is adapted, and outer contour is surrounded by the outer contour of rotor core 11, is ensured during rotor rotation and is determined
There is no interference for sub- iron core.The center of barrier portion 20 offers medium pore 21, in order to obtain sufficiently large refrigerant circulation area,
The overlay area of medium pore 21 should include the air channel 112 on rotor core 11.Part in addition to medium pore 21 is part or all of
12 mounting groove of permanent magnet is covered, to prevent permanent magnet 12 from moving axially.
For Part II leakage field B2, the air channel circumferentially extended along sub- rotor 10 is provided with the yoke portion of sub- rotor 10
112, the magnetic line of force that guiding permanent magnet 12 is sent more from alternately pole into the air gap between rotor and stator, reduces axial leakage
Magnetic.
Alternatively, air channel 112 is arranged on the yoke portion 115 of rotor core 11.
Alternatively, sub- rotor 10 is formed by impact style.Above-mentioned processing method is relatively simple, easy, and then reduces work
Make the labor intensity of personnel.
Specifically, mounting groove 111 is straight trough, and permanent magnet 12 is adapted with the shape of mounting groove 111.In this way, above-mentioned set
Put so that alternately the rotor number of poles of pole motor is 4 poles, 6 poles, 8 poles etc., so that alternately pole motor adapts to different operating modes.
Alternatively, mounting groove 111 is multiple, and multiple mounting grooves 111 surround the central axis pair of rotor core 11
Claim to set, permanent magnet 12 is to correspond the multiple of setting with multiple mounting grooves 111.As shown in Figures 2 and 3, in the present embodiment
In, mounting groove 111 is two, and two mounting grooves 111 are symmetrical arranged around the central axis of rotor core 11, permanent magnet
12 be to correspond two set with multiple mounting grooves 111.In this way, above-mentioned setting make it that the rotor number of poles of alternately pole motor is
4 poles.
In the present embodiment, alternately the rotor of pole motor includes two cross-talk rotors 10, and is set between two cross-talk rotors 10
There is a barrier portion 20, the magnetizing direction of two permanent magnets 12 in same cross-talk rotor 10 is identical, in two different cross-talk rotors 10
The magnetizing direction of permanent magnet 12 is on the contrary, the permanent magnet 12 on two cross-talk rotors 10 is all along half of electricity of circumferential offset of rotor core 11
Phase/180 degree electrical angle.
Specifically, in upper cross-talk rotor 10, permanent magnet 12 is by positioned at 11 magnetic of part rotor iron core in the outside of mounting groove 111
N poles are turned to, then the part rotor iron core 11 positioned at the inner side of mounting groove 111 is S poles.In lower cross-talk rotor 10, permanent magnet 12 will
Part rotor iron core 11 positioned at the outside of mounting groove 111 is magnetized to S poles, then positioned at the part rotor iron core of the inner side of mounting groove 111
11 be N poles.Afterwards, two cross-talk rotors 10 are linked together, and ensures that like pole is located on same axis direction.In this way,
Above-mentioned setting cause the magnetic flux that the permanent-magnet pole N poles of cross-talk rotor 10 produce and lower cross-talk rotor 10 replace pole N poles magnetic flux into
Row superposition, ensure that alternately each N pole-face or S pole-faces have identical magnetic flux in the circumferential direction of pole motor, ensure that
The symmetry of adjacent pole, eliminates abnormal radial direction electro-magnetic exciting force, weakens vibration and the noise of its generation.
As shown in Figures 2 and 3, air channel 112 is one section of arc groove being coaxially disposed with rotor core 11.Said structure
It is simple in structure, it is easily worked, and the magnetic line of force for send from permanent magnet 12 more enters the stator of motor from alternately pole, with
The axial leakage field of alternately pole motor is reduced, improves the output torque of alternately pole motor.Meanwhile above-mentioned setting can ensure air channel
112 influence minimum to the magnetic resistance of main magnetic circuit.
In the accompanying drawings in unshowned other embodiment, air channel is the annular groove being coaxially disposed with rotor core.Quilt
Two parts rotor core that annular groove separates is linked together by connection structure.In this way, above-mentioned setting causes more from forever
The magnetic line of force that magnet is sent enters alternately in the stator of pole motor from alternately pole, and then improves the work efficiency of alternately pole motor.
As shown in Figures 2 and 3, there is distance t2 between the first end and second end of arc groove, the groove width w2 of arc groove with
The ratio between distance t2 meetsIn this way, above-mentioned setting can make rotor core 11 have more preferable mechanical strength, Jin Erti
Its high structural strength, extends the service life of alternately pole motor.Meanwhile above-mentioned value range can efficiently reduce alternately extremely electricity
The axial leakage field of machine, the working performance of lifting alternating pole motor, reduces energy loss.
As shown in Figures 2 and 3, rotor core 11 has the via 113 passed through for shaft, and air channel 112 is close to via 113
Cell wall and via 113 hole wall between there is distance w1, air channel 112 is between the cell wall and permanent magnet 12 of permanent magnet 12
With distance w3, and meet 3w3≤2w2≤w1.In this way, in alternately pole motor rotation process, above-mentioned parameter scope can protect
The mechanical strength of rotor core 11 is demonstrate,proved, prevents rotor core 11 from normal operation that is damaged and influencing alternately pole motor occurs, extends
The alternately service life of pole motor.
As shown in Figures 2 and 3, the part between the first end and second end of arc groove is bridge part 114, and bridge part
114 are positioned close to the position of permanent-magnet pole, and bridge part 114 is set along the radial direction of rotor core 11.In this way, bridge part 114 is set
It is more preferable in the magnetic-leakage preventing effect close to position of the position of permanent-magnet pole than being arranged on alternating pole, and then lift the defeated of alternating pole motor
Go out torque.
In the present embodiment, alternately the rotor of pole motor further includes not magnetic conduction construction, and magnetic conduction construction is not filled in air channel
In 112 subregion or Zone Full.In this way, above-mentioned setting is although can largely strengthen the knot of alternately pole motor
Structure intensity, extends the service life of alternately pole motor.
Alternatively, magnetic conduction construction is not resin.Resin material is more universal, and with preferable magnetism absolutely, and then reduce
The alternately processing cost of pole motor.
As shown in Figure 1, the outer surface of barrier portion 20 is alignd with the outer surface of rotor core 11.In this way, barrier portion 20 is outer
Surface has the shape being adapted with the outer surface of rotor core 11, ensures that rotor will not be sent out in rotary course with stator core
Raw structure, movement interference.Specifically, barrier portion 20 is installed between two cross-talk rotors 10, to intensity requirement very little, barrier portion 20
Outer surface be spliced by circular arc, be respectively one section of circular arc corresponding to each magnetic pole, with fillet or right angle between each section of circular arc
Connection, to the intensity effect very little of barrier portion 20.The structure of said structure is simple, is easily worked, realizes.
It should be noted that the size relationship not limited to this of the outer surface of barrier portion 20 and the outer surface of rotor core 11.
Alternatively, the outer surface of rotor core 11 protrudes from the outer surface of barrier portion 20.
As shown in Figure 1 and Figure 5, rotor further includes two end caps 30, and two end caps 30 are separately positioned on rotor core 11
Both ends, fastener are fixed on separately after sequentially passing through an end cap 30, a cross-talk rotor 10, barrier portion 20 and another cross-talk rotor 10
On one end cap 30.Specifically, end cap 30 is primarily served the effect of the axial compression of rotor core 11, the outer surface of end cap 30
The shape being adapted with the outer surface with rotor core 11.The outer surface of end cap 30 is spliced by circular arc, corresponding to each
Magnetic pole is respectively one section of circular arc, and in order to ensure the structural strength of end cap 30, circular sliding slopes are used between each section of circular arc.
Specifically, in order to ensure enough circulation areas, the middle part of end cap 30 offers end cap groove 31 and ending cover hole 32, leads to
Orthographic projection of the air drain 112 on end cap groove 31 is located in end cap groove 31, and respectively in the pole center line position of permanent-magnet pole, alternating pole
Put place and end cap bridge part 33 is set.In this way, end cap bridge part 33 ensure that end cap 30 has enough mechanical strengths, turned with compressing
Sub- iron core 11.Wherein, orthographic projection of the medium pore 21 of barrier portion 20 on ending cover hole 32 is located in ending cover hole 32.
Alternatively, the number of end cap bridge part 33 is more than the number of bridge part 114 on rotor core 11, and then ensures end cap
The structural strength of bridge part 33, prevents end cap 30 from breakage occurs.
In the present embodiment, barrier portion 20 and end cap 30 are made of not magnetic conductive metal material.In this way, above-mentioned setting causes magnetic
The line of force can not pass through barrier portion 20 and end cap 30, and then lift the magnetic-leakage preventing effect of said structure.
Present invention also provides a kind of motor, including above-mentioned alternating pole motor.Motor includes stator, and stator includes stator
Iron core and stator winding, stator winding are wound on stator core.Wherein, stator core is overrided to form by soft magnetic materials thin slice.
In this way, in motor operation course, for rotor relative to stator rotation, barrier portion 20 prevents that alternately leakage field phenomenon occurs for pole motor,
And then lift the working performance of motor.Specifically, using the present embodiment technical solution motor abnormality electromagnetic force by well
Eliminate, and by setting air channel 112 and barrier portion 20 so that magnetic line of force loss is preferably minimized, alternately the air gap of pole motor
Flux density is maximum, increases the electromagnetic torque of alternately pole motor, lifting alternating pole motor working performance.
Specifically, the modulus of abnormal electromagnetic force is related with the cooperation of frequency and pole groove.As shown in Figure 10.Adopted in the present embodiment
With 9S6P structures, the abnormal electromagnetic force frequency is 9 frequencys multiplication and 27 frequencys multiplication, using the radial direction of the motor of the technical solution in the present embodiment
The radial direction electro-magnetic exciting force of the motor of electro-magnetic exciting force than in the prior art reduces very much, so reduce motor vibration and
Noise, improves user experience.
As shown in figure 11, S1 represents motor when the rotor of alternately pole motor is not segmented (i.e. conventional alternately pole motor) in figure
For electromagnetic torque with the change curve of electric current, S2 represents that the electromagnetic torque of the alternating pole motor of the application is bent with the change of electric current
Line, S3 represent to be not provided among the rotor of segmentation to replace the electricity of pole motor during the air channel 112 on barrier portion and rotor punching
Magnetic torque is with the change curve of electric current.It can be seen from the figure that replacing during with being not provided with barrier portion among the rotor of segmentation
Pole motor is compared, and the alternating pole motor in the present embodiment can increase electromagnetic torque, and then lifts the output effect of alternately pole motor
Rate.
Embodiment two
Alternating pole motor in embodiment two and embodiment one difference lies in：The structure of air channel 112 is different.
Alternatively, air channel 112 is the multistage arc groove being coaxially disposed with rotor core 11.As shown in Figure 6 and Figure 7, lead to
Air drain 112 is two sections of arc grooves being coaxially disposed with rotor core 11.The structure of said structure is simple, is easily worked, and causes
The magnetic line of force sent from permanent magnet 12 more enters air channel 112 from alternately pole, to reduce the axial leakage field of alternately pole motor,
Improve the output torque of alternately pole motor.
As shown in Figure 6 and Figure 7, there is the ratio between distance t3, the groove width w2 and distance t3 of arc groove completely between two sections of arc grooves
FootIn this way, above-mentioned setting can make rotor core 11 have more preferable mechanical strength, and then it is strong to improve its structure
Degree, extends the service life of alternately pole motor.Meanwhile above-mentioned value range can efficiently reduce the axial leakage of alternately pole motor
Magnetic, the working performance of lifting alternating pole motor, reduces energy loss.
As shown in Figure 6 and Figure 7, the part between two arc grooves is bridge part 114, and bridge part 114 is along rotor core 11
Radial direction set.Above-mentioned setting can improve the structural strength of rotor core 11, the service life of Extending Rotor iron core 11.
As shown in Figure 6 and Figure 7, air channel 112 is symmetrical arranged along the central axis of rotor core 11.Specifically, air channel
112 are symmetrical arranged on pole center line (d axis) and adjacent pole center line (q axis), so that on two cross-talk rotors 10
The shape of two air channels 112 shifted to install is coincide, and to obtain maximum circulation area, improves the heat exchange of alternately pole motor
Performance.
Embodiment three
Alternating pole motor in embodiment three and embodiment two difference lies in：The structure of bridge part 114 is different.
As shown in figure 8, the part between the first end and second end of arc groove is bridge part 114, bridge part 114 relative to
It is obliquely installed by the axial plane of the rotor core 11 of bridge part 114.In this way, above-mentioned setting enables to bridge part 114
Length bigger, and then further lift magnetic-leakage preventing effect.
Example IV
Alternating pole motor in example IV and embodiment one difference lies in：The structure of air channel 112 is different.
In the present embodiment, air channel is polygon groove.The structure of said structure is simple, is easily worked, and causes from forever
The magnetic line of force that magnet is sent more enters air channel from alternately pole, to reduce the axial leakage field of alternately pole motor, improves alternating
The output torque of pole motor.Meanwhile above-mentioned setting can ensure that air channel influences minimum to the magnetic resistance of main magnetic circuit.
Embodiment five
Alternating pole motor and example IV in embodiment five difference lies in：The structure of air channel 112 is different.
Alternatively, air channel 112 is multistage L-shaped groove, and many-section desiccation groove 112 is symmetrical along the central axis of rotor core 11
Set.As shown in figure 9, air channel 112 is and 11 two sections of L-shaped grooves of rotor core.The structure of said structure is simple, is easily worked,
And the magnetic line of force for send from permanent magnet 12 more enters the stator of motor from alternately pole, to reduce the axis of alternately pole motor
To leakage field, the output torque of raising alternating pole motor.
Specifically, air channel 112 is symmetrical arranged on pole center line (d axis) and adjacent pole center line (q axis), and then
So that the shape of shift to install two air channels 112 on two cross-talk rotors 10 is coincide, to obtain maximum circulation area, change
The heat exchange performance of kind alternately pole motor.
In the accompanying drawings in unshowned other embodiment, air channel is one section of L-shaped groove.
It can be seen from the above description that the above embodiments of the present invention realize following technique effect：
In alternately pole motor operation course, barrier portion can increase the magnetic resistance of leakage magnetic circuit between more cross-talk rotors, and then
Weaken the leakage field degree between two adjacent cross-talk rotors, weaken the leakage field degree of rotor, the final leakage for weakening alternately pole motor
Magnetic degree, and then the output torque of alternately pole motor is improved, the working performance of lifting alternating pole motor.
Obviously, above-mentioned described embodiment is only the embodiment of a present invention part, instead of all the embodiments.
Based on the embodiments of the present invention, what those of ordinary skill in the art were obtained without making creative work is all
Other embodiment, should all belong to the scope of protection of the invention.
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, work, device, component and/or combinations thereof.
It should be noted that term " first " in the description and claims of this application and above-mentioned attached drawing, "
Two " etc. be for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so use
Data can exchange in the appropriate case, so that presently filed embodiment described herein can be with except illustrating herein
Or the order beyond those of description is implemented.
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 (17)
1. one kind alternating pole motor, it is characterised in that the alternately pole motor includes rotor, and the rotor includes more cross-talk rotors
(10), and sub- rotor (10) described in multistage connects along the axis direction of the rotor, and the rotor further includes barrier portion (20), institute
Barrier portion (20) is stated to be arranged between the sub- rotor (10) of adjacent two.
2. alternately pole motor according to claim 1, it is characterised in that the barrier portion (20) is platy structure.
3. alternately pole motor according to claim 2, it is characterised in that each sub- rotor (10) includes rotor core
(11) and the permanent magnet (12) that is arranged in the mounting groove (111) of the rotor core (11), the thickness of the permanent magnet (12)
The ratio between t1 and thickness t3 of the platy structure meets
4. alternately pole motor according to claim 1, it is characterised in that each sub- rotor (10) includes rotor core
(11) and the permanent magnet (12) that is arranged in the mounting groove (111) of the rotor core (11), along the rotor core (11)
Axis direction is provided with air channel (112), and the barrier portion (20) has the through hole connected with the air channel (112).
5. it is according to claim 4 alternately pole motor, it is characterised in that the air channel (112) be and the rotor iron
The annular groove or one section of arc groove or multistage arc groove that core (11) is coaxially disposed.
6. alternately pole motor according to claim 5, it is characterised in that when the air channel (112) is one section of arc groove
When, there is between the second end of the first end of the arc groove and the arc groove distance t2, the groove width w2 of the arc groove with
The ratio between described distance t2 meets
7. alternately pole motor according to claim 5, it is characterised in that when the air channel (112) is multistage arc groove
When, there is between adjacent two sections of arc grooves the ratio between distance t3, the groove width w2 of the arc groove and the distance t3 satisfaction
8. alternately pole motor according to claim 7, it is characterised in that the rotor core (11) has to be passed through for shaft
Via (113), the air channel (112) close to the via (113) cell wall and the via (113) hole wall between have
There is distance w1, the air channel (112) has distance between the cell wall and the permanent magnet (12) of the permanent magnet (12)
W3, and meet 3w3≤2w2≤w1.
9. the alternating pole motor according to claim 7 or 8, it is characterised in that two arc grooves of arbitrary neighborhood it
Between part be bridge part (114), the bridge part (114) is relative to the rotor core by the bridge part (114)
(11) axial plane is obliquely installed.
10. alternately pole motor according to claim 4, it is characterised in that the air channel (112) is polygon groove or one
Section L-shaped groove or multistage L-shaped groove.
11. alternately pole motor according to claim 4, it is characterised in that the air channel (112) is multistage, and described
Air channel (112) is symmetrical arranged along the central axis of the rotor core (11).
12. alternately pole motor according to claim 4, it is characterised in that the rotor further includes not magnetic conduction construction, described
Magnetic conduction construction is not filled in subregion or the Zone Full of the air channel (112).
13. alternately pole motor according to claim 12, it is characterised in that the not magnetic conduction construction is formed from a resin.
14. it is according to claim 4 alternately pole motor, it is characterised in that the outer surface of the barrier portion (20) with it is described
The outer surface alignment of rotor core (11).
15. alternately pole motor according to claim 4, it is characterised in that the rotor further includes two end caps (30), and two
A end cap (30) is separately positioned on the both ends of the rotor core (11), and fastener sequentially passes through an end cap
(30), it is fixed on another institute after one section of sub- rotor (10), the barrier portion (20) and another section of sub- rotor (10)
State on end cap (30).
16. alternately pole motor according to claim 15, it is characterised in that the barrier portion (20) and/or the end cap
(30) it is made of not magnetic conductive metal material.
17. a kind of compressor, it is characterised in that including the alternating pole motor any one of claim 1 to 16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711279420.8A CN108023419A (en) | 2017-12-06 | 2017-12-06 | Alternating-pole motor and compressor with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711279420.8A CN108023419A (en) | 2017-12-06 | 2017-12-06 | Alternating-pole motor and compressor with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108023419A true CN108023419A (en) | 2018-05-11 |
Family
ID=62078711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711279420.8A Pending CN108023419A (en) | 2017-12-06 | 2017-12-06 | Alternating-pole motor and compressor with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108023419A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108696018A (en) * | 2018-07-16 | 2018-10-23 | 珠海格力电器股份有限公司 | Alternating-pole motor and compressor with same |
| CN112398248A (en) * | 2019-08-14 | 2021-02-23 | 思科普有限公司 | Internal permanent magnet rotor for refrigerant compressor |
| US11855489B2 (en) | 2018-08-13 | 2023-12-26 | Gree Electric Appliances, Inc. Of Zhuhai | Rotor assembly and consequent-pole motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102761187A (en) * | 2012-05-28 | 2012-10-31 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor rotor and built-in type permanent-magnet motor |
| CN105529852A (en) * | 2016-02-23 | 2016-04-27 | 珠海格力节能环保制冷技术研究中心有限公司 | Built-in permanent magnet motor rotor structure and motor with same |
| CN105914927A (en) * | 2016-07-01 | 2016-08-31 | 哈尔滨工业大学 | Magnetic increase built-in V-shaped adjustable flux motor |
| CN207504658U (en) * | 2017-12-06 | 2018-06-15 | 珠海格力电器股份有限公司 | Alternating-pole motor and compressor with same |
-
2017
- 2017-12-06 CN CN201711279420.8A patent/CN108023419A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102761187A (en) * | 2012-05-28 | 2012-10-31 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor rotor and built-in type permanent-magnet motor |
| CN105529852A (en) * | 2016-02-23 | 2016-04-27 | 珠海格力节能环保制冷技术研究中心有限公司 | Built-in permanent magnet motor rotor structure and motor with same |
| CN105914927A (en) * | 2016-07-01 | 2016-08-31 | 哈尔滨工业大学 | Magnetic increase built-in V-shaped adjustable flux motor |
| CN207504658U (en) * | 2017-12-06 | 2018-06-15 | 珠海格力电器股份有限公司 | Alternating-pole motor and compressor with same |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108696018A (en) * | 2018-07-16 | 2018-10-23 | 珠海格力电器股份有限公司 | Alternating-pole motor and compressor with same |
| CN108696018B (en) * | 2018-07-16 | 2024-04-30 | 珠海格力电器股份有限公司 | Alternate pole motor and compressor with same |
| US11855489B2 (en) | 2018-08-13 | 2023-12-26 | Gree Electric Appliances, Inc. Of Zhuhai | Rotor assembly and consequent-pole motor |
| CN112398248A (en) * | 2019-08-14 | 2021-02-23 | 思科普有限公司 | Internal permanent magnet rotor for refrigerant compressor |
| CN112398248B (en) * | 2019-08-14 | 2024-03-05 | 思科普有限公司 | Interior permanent magnet rotor for refrigerant compressor |
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