CN107070147A - Rotor punching, single-phase asynchronous motor and compressor - Google Patents
Rotor punching, single-phase asynchronous motor and compressor Download PDFInfo
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- CN107070147A CN107070147A CN201710297278.3A CN201710297278A CN107070147A CN 107070147 A CN107070147 A CN 107070147A CN 201710297278 A CN201710297278 A CN 201710297278A CN 107070147 A CN107070147 A CN 107070147A
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- groove
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- 238000004080 punching Methods 0.000 title claims abstract description 172
- 230000035772 mutation Effects 0.000 claims abstract description 11
- 238000009828 non-uniform distribution Methods 0.000 claims abstract description 4
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 description 16
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 15
- 239000004411 aluminium Substances 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 241001347978 Major minor Species 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/04—Asynchronous induction motors for single phase current
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The present invention relates to machine field, disclose a kind of rotor punching, single-phase asynchronous motor and compressor, the rotor punching includes multiple rotor punching grooves (1) along the circumferential nonuniform mutation operator of the rotor punching, it is characterized in that, the degree of the nonuniform mutation operator uses sine wave modulation, the space bit angle setting of rotor punching groove (1) position described in n-th on the rotor punching is θ n, then θ n=θ n0+ α × (sin (2 π n β/N)), wherein, the space bit angle setting of rotor punching groove (1) position of n-th of rotor when θ n0 is assume that circumference of the multiple rotor punching groove (1) along the rotor punching is uniformly distributed, meet θ n0=2 π n/N；α is the index of modulation, meets 0.3 ＜ α ＜ 2；β meets 2≤β≤4 to determine number modulation period of the non-uniform Distribution of the rotor punching groove；N is the total quantity of the rotor punching upper rotor part punching groove (1).
Description
Technical field
The present invention relates to machine field, more particularly to a kind of rotor punching, with the single-phase asynchronous of the rotor punching
Motor and the compressor with the single-phase asynchronous motor.
Background technology
With the increase of energy-saving and emission-reduction pressure, the efficiency of household electrical appliance larger to power consumptions such as electrical equipment, especially air-conditionings
It is required that more and more higher.For the refrigeration industry that power consumption is larger, the compressor of high energy efficiency is realized, is had become urgent and urgent
Task.
As the power resources of compressor, the efficiency of single-phase asynchronous motor directly determines the efficiency of compressor.At present, it is single-phase
The efficiency of asynchronous machine has reached bottleneck.Common mode is to improve single-phase asynchronous electricity by improving the effective turn of main winding
The efficiency of machine, still, because the torque capacity of single-phase asynchronous motor and the effective turn of main winding square are inversely proportional, thus it is logical
Cross this means to improve efficiency, it is meant that the reduction of torque capacity, and then influence the BDV of compressor.Another can
The mode for improving efficiency is cast-aluminum rotor that will be conventional at present, is changed to copper casting rotor, but is that cast copper turns the problem of bring therewith
Son it is incompatible with cast aluminium equipment, in this way in the case of be accomplished by changing original cast aluminium equipment, equipment throwing
Money cost is huge, and because aluminium consumption proportion in motor of rotor is not high, the rising of motor cost and the raising of efficiency
It is not directly proportional so that the cost performance reduction of motor and compressor.
At present, for the single-phase asynchronous motor used in compressor, including the multiple rotor punchings being stacked, these
Rotor punching includes being designed as remaining silent along the multiple rotor punching grooves being arranged circumferentially of rotor punching, these rotor punching grooves
Groove, after multiple rotor punchings are stacked, then produces by the way of pressure cast aluminium rotor.To weaken slot ripples, it is ensured that
Motor can normally start, and more by the way of rotor chute, i.e., connecting the rotor slot formed by corresponding rotor punching groove is
With the axis direction of rotor into the rotor chute of angle, and the angle is about 8 degree.
In Chinese invention patent CN102097908 B, it is proposed that a kind of squirrel-cage asynchronous motor for avoiding rotor chute
Rotor punching is designed, its reduced for how to avoid taking the mode of rotor chute in conventional AC motor production process by
The problem of additional torque caused by harmony wave and noise the squirrel-cage asynchronism of rotor chute can be avoided there is provided a kind of
The method that motor, wherein rotor punching rotor slot use Sine Modulated, is specifically defined：The rotor slot of rotor punching, which is taken, closes
The design of mouthful groove, and rotor slot groove apex distance from a distance from rotor outer circle with capacity motor depending on；Rotor slot is set using uneven distribution
Put, and uneven distribution degree uses sine wave modulation, the determination method of the space bit angle setting of each rotor slot position is led to
Following formula are crossed to calculate：In θ n=θ n0+K ζ, formula, θ n are the space bit angle setting of n-th of rotor slot；θ n0 are that rotor bar is uniform
The space bit angle setting of n-th of rotor slot during distribution, is solved with formula θ n0=2 π n/Z2, and wherein Z2 is rotor slot number；K is rotor
The index of modulation of slot space position angle, span is 0~0.03；ζ is, using the angle obtained by sine wave modulation, to use formula ζ
=sin (2 π n ε/Z2) is solved, and wherein ε is sine wave coefficients, and value is 0~4；And require that stator and rotor coordinate for nearly groove.Ginseng
The table one seen below, illustrated therein is and set that Z2 is 0.03 as 30, K and ζ is 2, calculate the difference for obtaining θ n0, θ n and θ n and θ n0
It is worth (θ n- θ n0), as shown in table one.
It can be seen that by the result of calculation in table one small in θ n and θ n0 difference (θ n- θ n0) result very little, table one
In or equal to 0.03, but during the real electrical machinery manufacturing, made according to the high punching of existing electric moto used in compressor
Angle tolerance between technique, the different rotor punching groove of rotor punching is about 0.1 degree, it is impossible to produced by existing process
By the rotor punching of the result of calculation arrangement in table one.
On the other hand, for the single-phase asynchronous motor used in compressor, rotor slot coordinates that commonly uses to have 24/33,24/
34th, 24/30 and 20/26, according to industrial practice, the category of the ratio of the quantity of rotor slot and stator slot within 0.85 to 1.25
Coordinate in nearly groove, and can not implement on the rotor that 24/33 or 24/34 this non-near groove coordinates.
It would therefore be highly desirable to which single-phase asynchronous motor, especially compressor single-phase asynchronous motor can be applied to by providing one kind
In, to improve the rational technical scheme of efficiency and cost of the single-phase asynchronous motor.
Table one
| n | θn0 | θn | θn-θn0 |
| 1 | 12.0 | 12.01 | 0.01 |
| 2 | 24.0 | 24.02 | 0.02 |
| 3 | 36.0 | 36.03 | 0.03 |
| 4 | 48.0 | 48.03 | 0.03 |
| 5 | 60.0 | 60.03 | 0.03 |
| 6 | 72.0 | 72.02 | 0.02 |
| 7 | 84.0 | 84.01 | 0.01 |
| 8 | 96.0 | 95.99 | -0.01 |
| 9 | 108.0 | 107.98 | -0.02 |
| 10 | 120.0 | 119.97 | -0.03 |
| 11 | 132.0 | 131.97 | -0.03 |
| 12 | 144.0 | 143.97 | -0.03 |
| 13 | 156.0 | 155.98 | -0.02 |
| 14 | 168.0 | 167.99 | -0.01 |
| 15 | 180.0 | 180.00 | 0.00 |
| 16 | 192.0 | 192.01 | 0.01 |
| 17 | 204.0 | 204.02 | 0.02 |
| 18 | 216.0 | 216.03 | 0.03 |
| 19 | 228.0 | 228.03 | 0.03 |
| 20 | 240.0 | 240.03 | 0.03 |
| 21 | 252.0 | 252.02 | 0.02 |
| 22 | 264.0 | 264.01 | 0.01 |
| 23 | 276.0 | 275.99 | -0.01 |
| 24 | 288.0 | 287.98 | -0.02 |
| 25 | 300.0 | 299.97 | -0.03 |
| 26 | 312.0 | 311.97 | -0.03 |
| 27 | 324.0 | 323.97 | -0.03 |
| 28 | 336.0 | 335.98 | -0.02 |
| 29 | 348.0 | 347.99 | -0.01 |
| 30 | 360.0 | 360.00 | 0.00 |
The content of the invention
It is an object of the invention to provide a kind of rotor punching for helping to obtain the higher single-phase asynchronous motor of efficiency, and
Additionally provide the single-phase asynchronous motor with the rotor punching and the compressor with the single-phase asynchronous motor.
To achieve these goals, it is necessary first to find out cause prior art single-phase asynchronous motor efficiency it is low the reason for.
Therefore, present inventor is analyzed with the factor of the influence efficiency present in single-phase asynchronous motor compressor.
In order at utmost reduce the groove leakage reactance of rotor, on the premise of minimum slot width is ensured, compressor is with single-phase asynchronous
Motor is typically designed as with more rotor slot, and the quantity of generally common rotor slot is, for example, 30 grooves, 33 grooves and 34 grooves, but
Thus cause a problem in that, single groove area is less than normal, adding needs to form the rotor chute, in order to ensure motor manufacturing process
Middle cast aluminium quality and high efficiency, it usually needs use higher cast aluminium pressure, but this will cause rotor bar and rotor iron
The insulation of silicon steel sheet between core is damaged, the insulaion resistance reduction between rotor bar and iron core, and due to rotor core
It is designed as between skewed slot mode, adjacent sliver the presence of electrical potential difference, therefore rotor stray can be produced as caused by transverse current being lost,
Cause the decline of motor efficiency.Also, because rotor core is designed as skewed slot mode, during pressure cast aluminium, rotor bar
Bubble etc. is easily formed in aluminium, the rotor bar aluminium compactness cast out is poor, and resistivity is higher, also results in the shadow to motor efficiency
Ring.
If it is possible to cancel the skewed slot design of rotor core, for example, rotor core is designed as to the mode of straight trough, that
The effective length of rotor bar aluminium will shorten, and during pressure cast aluminium, easily cast out the higher rotor bar aluminium of density,
Therefore the resistance of rotor can be reduced, and the efficiency of motor can be lifted；Also, if using the rotor core for cancelling skewed slot mode
Design, cast aluminium pressure can be with a certain degree of reduction, and the insulaion resistance between rotor bar and iron core is higher, and adjacent sliver it
Between be substantially not present electrical potential difference, this be all conducive to improve motor efficiency.
But, because electric moto used in compressor is single-phase asynchronous motor, it is same electric capacity, motor to play dynamic condenser and operation electric capacity
Main to consider motor in specified operation in design, major-minor winding current is close to orthogonal, and magnetic field is circular magnetic field, therefore, list
On startup, major-minor electric current substantial deviation is orthogonal for phase Induction Machines, and air-gap field is oval magnetic field, in this case, if directly
When connecing rotor core of the utilization existing rotor punching manufacture with straight trough form, due to the influence of harmonic wave, manufactured is single-phase
Asynchronous machine can not will normally start at all.
Based on above-mentioned analysis, one aspect of the present invention provides a kind of rotor punching, and the rotor punching includes rushing along the rotor
Multiple rotor punching grooves of the circumferential nonuniform mutation operator of piece, the degree of the nonuniform mutation operator uses sine wave modulation, described turn
The space bit angle setting of rotor punching groove position described in n-th in sub- punching be θ n, then θ n=θ n0+ α × (sin (2 π n β/
N)), wherein, n-th rotor when θ n0 is assume that the circumference of the multiple rotor punching groove along the rotor punching is uniformly distributed
The space bit angle setting of the rotor punching groove position, meets θ n0=2 π n/N；α is the index of modulation, meets 0.3 ＜ α ＜ 2；β
For number modulation period for the non-uniform Distribution for determining the rotor punching groove, 2≤β≤4 are met；N is to turn on the rotor punching
The total quantity of sub- punching groove.
Preferably, the shape and size of the multiple rotor punching groove are identical.
Preferably, the rotor punching groove is the oblique shoulder peariform slot radially extended along the rotor punching.
Preferably, the total quantity N of the rotor punching upper rotor part punching groove is 30.
Preferably, the number modulation period β is 2.
Preferably, the thickness of the rotor punching is 0.45mm~0.65mm.
Preferably, the external diameter of the rotor punching is d1, then 20mm ＜ d1 ＜ 100mm；The rotor punching groove is outwardly
Radial direction of the end along the rotor punching to the outer peripheral distance of the rotor punching be d2, then 0.2mm ＜ d2 ＜
0.8mm。
Preferably, radial direction of the end outwardly of the rotor punching groove along the rotor punching is rushed to the rotor
Piece it is outer peripheral apart from d2 be 0.3mm.
The second aspect of the present invention provides a kind of single-phase asynchronous motor, and the single-phase asynchronous motor includes rotor, described
Rotor includes the multiple rotor punchings being stacked, and the rotor punching is the rotor punching according to the present invention, the multiple
The shape and size of rotor punching are mutually the same, and the multiple rotor punching corresponding rotor punching groove vertically into
Straight line is stacked, to form the rotor slot of straight channel type on the rotor.
The third aspect of the present invention provides a kind of compressor, and the compressor includes the single-phase asynchronous electricity according to the present invention
Machine.
By above-mentioned technical proposal, by the way that rotor punching upper rotor part punching groove to be set to the circumference along the rotor punching
Nonuniform mutation operator, and Rational choice relevant parameter is modulated to the degree of the nonuniform mutation operator using sine wave, cloth
Put the space bit angle setting of the rotor punching groove position on rotor punching so that the interval section between adjacent rotor punching groove
Learn reasonable, rushing manufacturing process according to the height of existing electric moto used in compressor can manufacture, and by the rotor punching for manufacturing
During rotor, it is ensured that in the case that the rotor slot of rotor is straight trough form, motor also can normally start.
Brief description of the drawings
Fig. 1 is a kind of embodiment of the rotor punching according to the present invention.
Description of reference numerals
1 rotor punching groove
The external diameter of d1 rotor punchings
Radial direction of the end outwardly of d2 rotor punching grooves along the rotor punching is to the outside of the rotor punching
The distance of edge
Embodiment
In the present invention, it is to be understood that the side of the instruction such as term " interior ", " outer ", " axial direction ", " radial direction ", " circumference "
Position or position relationship be based on orientation shown in the drawings or position relationship, it is also relative with the orientation or position relationship of actual use
Should, description description of the invention and simplified is for only for ease of, rather than indicate that the device or element of meaning must have specifically
Orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
One aspect of the present invention provides a kind of rotor punching, and the rotor punching includes non-homogeneous along the circumference of the rotor punching
Multiple rotor punching grooves 1 of arrangement, the degree of the nonuniform mutation operator uses n-th on sine wave modulation, the rotor punching
The space bit angle setting of the individual position of rotor punching groove 1 is θ n, then θ n=θ n0+ α × (sin (2 π n β/N)), wherein, θ n0
The rotor punching of n-th of rotor during to assume that circumference of the multiple rotor punching groove 1 along the rotor punching is uniformly distributed
The space bit angle setting of the position of film trap 1, meets θ n0=2 π n/N；α is the index of modulation, meets 0.3 ＜ α ＜ 2；β is decision institute
Number modulation period of the non-uniform Distribution of rotor punching groove 1 is stated, 2≤β≤4 are met；N is the rotor punching upper rotor part punching groove
1 total quantity.
In the above-mentioned technical solutions, by the way that rotor punching upper rotor part punching groove 1 to be set to the week along the rotor punching
To nonuniform mutation operator, and Rational choice relevant parameter is modulated to the degree of the nonuniform mutation operator using sine wave,
The space bit angle setting for the position of rotor punching groove 1 arranged on rotor punching so that between adjacent rotor punching groove 1
Every scientific and reasonable, rushing manufacturing process according to the height of existing electric moto used in compressor can be manufactured, and the rotor punching is used for
When manufacturing rotor, it is ensured that in the case that the rotor slot of rotor is straight trough form, motor also can normally start.
Referring to Fig. 1, it is preferable that the shape and size of the multiple rotor punching groove 1 are identical, and wherein each rotor punching
Rotor punching groove 1 (towards the end points at the center of rotor punching) on piece is equal with the distance at the center of rotor punching.
Also, the rotor punching groove 1 can be the oblique shoulder peariform slot radially extended along the rotor punching, in Fig. 1
Show the concrete shape of rotor punching groove 1, substantially oblique shoulder pyriform, and two ends (towards one end of rotor center and deviate from
One end of rotor center) it is circular arc.
As a kind of conventional situation, the total quantity N of the rotor punching upper rotor part punching groove 1 is 30.Also, ordinary circumstance
Under, the thickness of the rotor punching can be 0.45mm~0.65mm.
Rotor practical in single-phase asynchronous motor is used for compressor (compressor particularly in the electric refrigerator such as air-conditioning)
Punching, generally, the external diameter of the rotor punching is d1, then 20mm ＜ d1 ＜ 100mm；The court of the rotor punching groove 1
Radial direction of the end of the center of rotor punching (deviate from) along the rotor punching is to the outer peripheral of the rotor punching outside
Distance is d2, then 0.2mm ＜ d2 ＜ 0.8mm.Preferably, the end outwardly of the rotor punching groove 1 is along the rotor punching
Radial direction to the rotor punching it is outer peripheral apart from d2 be 0.3mm.In addition, the number modulation period β is preferably 2,
The value is more conducive to the raising of the identification in rotor punching actual production process.
Referring to following table two, the situation for setting that N is 1.3 or 2 as 30 or 33, α and β is 2,3 or 4 illustrated therein is
Under, the value for obtaining θ n0 is calculated, as shown in table two.
As can be seen that θ n value can be met rushes manufacturing process according to the height of existing electric moto used in compressor, i.e.,
Ask the angle tolerance between the different rotor punching groove of rotor punching to be more than 0.1 degree, therefore, can be produced by existing process
The rotor punching designed by technical solution of the present invention.
For example, the N of secondary series is that 30, index of modulation α values 1.3, number modulation period are the implementation that β values are 2 in table two
In example, the locus angular distance of rotor punching groove 1 assumes circumference equally distributed rotor of the rotor punching groove 1 along rotor punching
The space bit angle setting of punching groove 1, minimal difference is 0.27 degree, under the current accuracy of manufacture, it is possible to achieve.Also, to installing
The rotor of this embodiment design carries out actual manufacture, it is assumed that the outside diameter d 1 of rotor punching is 56.1mm, the court of rotor punching groove 1
Outside radial direction of the end of the center of rotor punching (deviate from) along rotor punching to the outer peripheral distance of rotor punching be d2
For 0.3mm, the height of rotor core is 95mm, and the quality of the rotor of the rotor slot with straight trough form is 283g, prior art
In the casting aluminum rotor quality of the equally distributed 8 degree of skewed slots design of circumference of the rotor punching groove 1 along rotor punching be 270g, rotor
Cast aluminium quality adds 4.8%.
To according to the rotor and traditional rotor with chute type rotor slot that are manufactured with embodiments of the present invention, with same
One stator carries out single-phase asynchronous motor efficiency test, and the result of test represents conventional rotors, M06A referring to table three, BRA and BRB
The rotor of the present invention is represented with M06B, AVG-base is then the average value for taking BRA and BRB, AVG-M06A be then take M06A and
M06B average value, it can be seen that the motor of the rotor including embodiments of the present invention and the motor phase for including traditional rotor
Specific speed rises 6 turns, and efficiency improves about 0.5%.
Table two
Table three
The second aspect of the present invention provides a kind of single-phase asynchronous motor, and the single-phase asynchronous motor includes rotor, described
Rotor includes the multiple rotor punchings being stacked, and the rotor punching is the rotor punching according to the present invention, the multiple
The shape and size of rotor punching are mutually the same, and the multiple rotor punching corresponding rotor punching groove 1 vertically
Be in line stacking, to form the rotor slot of straight channel type on the rotor.
The third aspect of the present invention provides a kind of compressor, and the compressor includes the single-phase asynchronous electricity according to the present invention
Machine.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, still, the present invention is not limited thereto.At this
In the range of the technology design of invention, a variety of simple variants, including each particular technique can be carried out to technical scheme
Feature is combined in any suitable manner, and in order to avoid unnecessary repetition, the present invention is to various possible combinations
No longer separately illustrate.But these simple variants and combination should equally be considered as content disclosed in this invention, belong to the present invention
Protection domain.
Claims (10)
1. a kind of rotor punching, the rotor punching includes multiple rotor punchings along the circumferential nonuniform mutation operator of the rotor punching
Groove (1), it is characterised in that the degree of the nonuniform mutation operator is used described in n-th on sine wave modulation, the rotor punching
The space bit angle setting of rotor punching groove (1) position is θ n, then θ n=θ n0+ α × (sin (2 π n β/N)), wherein, θ n0 are false
If the rotor punching of n-th of rotor when circumference of the multiple rotor punching groove (1) along the rotor punching is uniformly distributed
The space bit angle setting of groove (1) position, meets θ n0=2 π n/N；α is the index of modulation, meets 0.3 ＜ α ＜ 2；β is decision institute
Number modulation period of the non-uniform Distribution of rotor punching groove is stated, 2≤β≤4 are met；N is the rotor punching upper rotor part punching groove
(1) total quantity.
2. rotor punching according to claim 1, it is characterised in that the shape and chi of the multiple rotor punching groove (1)
It is very little identical.
3. rotor punching according to claim 1, it is characterised in that the rotor punching groove (1) is to be rushed along the rotor
The oblique shoulder peariform slot radially extended of piece.
4. rotor punching according to claim 1, it is characterised in that the rotor punching upper rotor part punching groove (1) it is total
Quantity N is 30.
5. rotor punching according to claim 1, it is characterised in that the number modulation period β is 2.
6. rotor punching according to claim 1, it is characterised in that the thickness of the rotor punching be 0.45mm~
0.65mm。
7. the rotor punching according to any one in claim 1-6, it is characterised in that the external diameter of the rotor punching is
D1, then 20mm ＜ d1 ＜ 100mm；Radial direction of the end outwardly of the rotor punching groove (1) along the rotor punching is arrived
The outer peripheral distance of the rotor punching is d2, then 0.2mm ＜ d2 ＜ 0.8mm.
8. rotor punching according to claim 7, it is characterised in that the end edge outwardly of the rotor punching groove (1)
The radial direction of the rotor punching to the rotor punching it is outer peripheral apart from d2 be 0.3mm.
9. a kind of single-phase asynchronous motor, the single-phase asynchronous motor includes rotor, the rotor is multiple including what is be stacked
Rotor punching, it is characterised in that the rotor punching is the rotor punching according to any one in claim 1-8, institute
The shape and size for stating multiple rotor punchings are mutually the same, and the corresponding rotor punching groove of the multiple rotor punching
(1) be in line stacking vertically, to form the rotor slot of straight channel type on the rotor.
10. a kind of compressor, it is characterised in that the compressor includes single-phase asynchronous motor according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710297278.3A CN107070147A (en) | 2017-04-28 | 2017-04-28 | Rotor punching, single-phase asynchronous motor and compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710297278.3A CN107070147A (en) | 2017-04-28 | 2017-04-28 | Rotor punching, single-phase asynchronous motor and compressor |
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| CN107070147A true CN107070147A (en) | 2017-08-18 |
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| CN102097908A (en) * | 2011-03-25 | 2011-06-15 | 华北电力大学 | Mouse cage type asynchronous motor rotor sheet capable of preventing rotor chute |
| CN103891102A (en) * | 2011-10-24 | 2014-06-25 | 三菱电机株式会社 | Rotor of interior permanent magnet motor, compressor, and refrigeration and air-conditioning device |
| US20160153397A1 (en) * | 2013-07-05 | 2016-06-02 | United Technologies Corporation | Gas Turbine Engine System for Modulating Flow of Fan By-Pass Air and Core Engine Air |
| CN206712635U (en) * | 2017-04-28 | 2017-12-05 | 广东美芝制冷设备有限公司 | Rotor punching, single-phase asynchronous motor and compressor |
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2017
- 2017-04-28 CN CN201710297278.3A patent/CN107070147A/en active Pending
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| CN101202488A (en) * | 2007-11-09 | 2008-06-18 | 江苏宝骊集团有限公司 | Single phase acynchronous motor |
| CN101771299A (en) * | 2009-12-26 | 2010-07-07 | 中国矿业大学 | Rotor structure of nonuniform rotor conductor distribution for permanent magnetic synchronous motor |
| CN102097908A (en) * | 2011-03-25 | 2011-06-15 | 华北电力大学 | Mouse cage type asynchronous motor rotor sheet capable of preventing rotor chute |
| CN103891102A (en) * | 2011-10-24 | 2014-06-25 | 三菱电机株式会社 | Rotor of interior permanent magnet motor, compressor, and refrigeration and air-conditioning device |
| US20160153397A1 (en) * | 2013-07-05 | 2016-06-02 | United Technologies Corporation | Gas Turbine Engine System for Modulating Flow of Fan By-Pass Air and Core Engine Air |
| CN206712635U (en) * | 2017-04-28 | 2017-12-05 | 广东美芝制冷设备有限公司 | Rotor punching, single-phase asynchronous motor and compressor |
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Application publication date: 20170818 |