CN110212669A - Rotor, motor and compressor - Google Patents
Rotor, motor and compressor Download PDFInfo
- Publication number
- CN110212669A CN110212669A CN201910615591.6A CN201910615591A CN110212669A CN 110212669 A CN110212669 A CN 110212669A CN 201910615591 A CN201910615591 A CN 201910615591A CN 110212669 A CN110212669 A CN 110212669A
- Authority
- CN
- China
- Prior art keywords
- rotor
- bore
- punching
- rotor punching
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
-
- 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
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/15—Sectional machines
Abstract
The present invention provides a kind of rotor, motor and compressors.Rotor includes: rotor punching, at least two pieces of rotor punchings, which laminate, is fixed together, it is provided on each rotor punching every bore, described on each rotor punching is arranged every bore along same straight line, and the cross-sectional area every bore on each rotor punching is different.Due to being arranged every bore along same straight line on each rotor punching in the present invention, and the cross-sectional area every bore on each rotor punching is different, utilize the great disparity every bore cross-sectional area in adjacent rotor punching, the magnet steel normally placed is set to generate the effect of oblique pole, wrong pole, the harmonic wave in motor gas-gap is thereby reduced, motor torque ripple is reduced, improves motor electromagnetic noise, structure is simple, convenient for assembling.
Description
Technical field
The present invention relates to compression set technical fields, in particular to a kind of rotor, motor and compressor.
Background technique
For air-conditioning products, in addition to valuing refrigeration effect, noise is also the key for assessing a product, the production of noise
The raw serious experience for affecting user.During operation of air conditioner, the reason of generating noise, mainly has mechanical noise, air dynamic
Power noise and electromagnetic noise etc., wherein electromagnetic noise is the electromagnetism generated in the process of running by the driving motor of compressor
What harmonic wave was motivated.
Currently in order to solving problem above, rotor magnetic steel is usually arranged to oblique pole or mistake extremely to realize noise of motor
It reduces, but realizes that volume production is more difficult, stamping die is easy to damage and reduces the service life.
It is higher and higher for motor output torque demand with the several promotion of compressor, lead to the folded high constantly liter of motor
Height, and the increase of core length, power of motor increase, and machine shaft is more and more elongated, this is for motor coaxle degree and amount of deflection meeting
It has adverse effect on, not only machine shaft bending deformation becomes larger, but also electric property is deteriorated.Thorax phenomenon is swept into generation when serious
(real to wipe), or even stator inner circle is made locally to generate high temperature, make the brown and crisp failure of slot interior insulation, causes winding earth or short circuit, simultaneously
It can cause to vibrate, so that noise of motor increases.
Summary of the invention
The main purpose of the present invention is to provide a kind of rotor, motor and compressors, in the prior art to solve
Motor is difficult to the problem assembled, noise is big.
To achieve the goals above, according to an aspect of the invention, there is provided a kind of rotor, comprising: rotor punching
Piece, at least two pieces of rotor punchings, which laminate, is fixed together, and is provided on each rotor punching every bore, and each described turn
Described in sub- punching is arranged every bore along same straight line, and the cross-sectional area every bore on each rotor punching is not
Together.
Further, magnetic slot is provided on the rotor punching, it is described to be located at the magnetic slot far from described every bore
The side at rotor punching center.
Further, the straight line cloth that the rotor axis is parallel to every bore edge on each rotor punching
It sets.
Further, the cross-sectional area every bore on each rotor punching is arrived along the rotor first end
The direction of second end becomes larger, and cross-sectional area is lesser described is included in every projection of the bore in the rotor end
Cross-sectional area is biggish described every in bore.
Further, in adjacent two pieces of rotor punchings, the biggish cross-sectional area every bore of cross-sectional area is
S1, the lesser cross-sectional area every bore of cross-sectional area is S2, wherein S2 > 1/3S1.
Further, described on each rotor punching is kidney slot every bore, and the width of the kidney slot is described in
The direction of rotor first end to second end becomes larger, and in adjacent two pieces of rotor punchings, the wider kidney-shaped
The width in hole is a, and the width of the relatively narrow kidney slot is b, wherein a/2 < b.
Further, each rotor punching respectively extremely on the number every bore be x, the block number of the rotor punching
For y, the number of poles of the rotor is p, wherein x-p+1=y.
Further, each rotor punching respectively extremely on the number x every bore be 5, the pole of the rotor
Number p is 3, and the block number y of the rotor punching is 3.
Further, along the rotor first end to the direction of second end, the thickness of the rotor punching gradually becomes
It is small.
Further, the rotor further includes partition, partition setting adjacent two pieces of rotor punchings it
Between, the partition is provided with notch section at the corresponding position of bore with described.
Further, the thickness of the partition is within the scope of 4mm to 6mm.
According to another aspect of the present invention, a kind of motor, including rotor are provided, the rotor is above-mentioned
Rotor.
In accordance with a further aspect of the present invention, a kind of compressor, including motor are provided, the motor is above-mentioned motor.
It applies the technical scheme of the present invention, due to being set every bore along same straight line on each rotor punching in the present invention
Set, and the cross-sectional area every bore on each rotor punching is different, using in adjacent rotor punching every bore cross-sectional area
Great disparity makes the magnet steel normally placed generate the effect of oblique pole, wrong pole, thereby reduces the harmonic wave in motor gas-gap, reduces motor
Torque pulsation improves motor electromagnetic noise, and structure is simple, convenient for assembling.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 diagrammatically illustrates the perspective view of rotor of the invention；
Fig. 2 diagrammatically illustrates the main view of rotor punching of the invention；
Fig. 3 diagrammatically illustrates the main view of partition of the invention；
Fig. 4 diagrammatically illustrates big every bore in rotor punching first end of the invention to each rotor punching of second end
Small comparison chart；
Fig. 5 diagrammatically illustrates the cross-sectional view of rotor of the invention；
Fig. 6 diagrammatically illustrates the rotor of the invention figure compared with the counter electromotive force of existing rotor；
Fig. 7 diagrammatically illustrates the rotor of the invention figure compared with the torque pulsation of existing rotor.
Wherein, the above drawings include the following reference numerals:
10, rotor punching；11, every bore；12, magnetic slot；20, partition；21, notch section.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
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 singular
Also it is 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, operation, device, component and/or their combination.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes (be rotated by 90 ° or in other orientation, and
Respective explanations are made to the opposite description in space used herein above.
Referring to shown in Fig. 1 to Fig. 7, according to an embodiment of the invention, providing a kind of motor, which includes that motor turns
Son, the rotor include at least two pieces of rotor punchings 10, and above-mentioned at least two pieces of rotor punchings 10, which laminate, to be fixed together, respectively
It is provided on rotor punching 10 every being arranged every bore 11 along same straight line in bore 11, each rotor punching 10, and each rotor
The cross-sectional area every bore 11 in punching 10 is different.
By being arranged every bore 11 along same straight line on each rotor punching 10 in this present embodiment, and each rotor punching
The cross-sectional area every bore 11 on 10 is different, using the great disparity every 11 cross-sectional area of bore in adjacent rotor punching 10, makes
The magnet steel normally placed generates the effect of oblique pole, wrong pole, thereby reduces the harmonic wave in motor gas-gap, reduces motor torque arteries and veins
It is dynamic, improve motor electromagnetic noise, structure is simple, convenient for assembling.
The cross-sectional area every bore 11 in the present embodiment refers to the section that the axis cutting perpendicular to rotor obtains.
It is provided with magnetic slot 12 on rotor punching 10, when actual design, magnetic slot 12 should be located at far from rotor every bore 11
The side at 10 center of punching, the i.e. outside of magnetic slot 12, on each rotor punching 10 every bore 11 along being parallel to rotor axis of electric
The straight line of line is arranged, convenient for improving the production efficiency of the rotor in the present embodiment, reduces the assembly difficulty of rotor.
Referring to figs. 1 to 5, the cross-sectional area every bore 11 on each rotor punching 10 in the present embodiment is along motor
The direction of rotor first end to second end becomes larger, and the lesser projection every bore 11 in rotor end of cross-sectional area
It is biggish every in bore 11 included in cross-sectional area, and in two pieces of adjacent rotor punchings 10, cross-sectional area is biggish described
It is S1 every the cross-sectional area of bore 11, the lesser cross-sectional area every bore 11 of cross-sectional area is S2, wherein S2 > 1/
The harmonic wave in motor gas-gap is effectively reduced convenient for making the magnet steel normally placed generate the effect of oblique pole, wrong pole in 3S1.
The direction of first end to second end in the present embodiment refers to the bottom end to top when motor uses within the compressor
Direction, the direction of bottom end as shown in Figure 1 to top.
On each rotor punching 10 in the present embodiment is kidney slot every bore 11, and the width of the kidney slot is along rotor
The direction of first end to second end becomes larger, and in adjacent two pieces of rotor punchings 10, and the width of wider kidney slot is a,
The width of relatively narrow kidney slot is b, wherein a/2 < b has convenient for making the magnet steel normally placed generate the effect of oblique pole, wrong pole
Effect reduces the harmonic wave in motor gas-gap, reduces motor torque ripple, improves motor electromagnetic noise.
Certainly, in other embodiments of the invention, circular hole, tri-angle-holed, special-shaped will can also be set as every bore 11
Hole etc., as long as other modes of texturing under design of the invention, within the scope of the present invention.
Preferably, each rotor punching 10 in the present embodiment it is each extremely on the number every bore 11 be x, rotor punching 10
Block number is y, and the number of poles of rotor is p, wherein x-p+1=y.
It is further preferred that each rotor punching 10 in the present embodiment it is each extremely on the number x every bore 11 be 5, motor
The number of poles p of rotor is 3, and the block number y of rotor punching 10 is 3.
Rotor in the present embodiment is overrided to form by the way that 3 kinds of rotor punchings 10 are axial, the oblique pole effect formed at this time
Preferably, and technique is most easy.
Preferably, along the direction of rotor first end to second end, the thickness of rotor punching 10 is gradually become smaller, such
Set-up mode, when using within the compressor motor, the center of gravity for enabling to motor on the lower, reduces the center of gravity of rotor,
Crankshaft deformation can be reduced, reducing amount of deflection so as to improve motor coaxle degree reduces the risk of electric machine chamber-sweeping.
Referring again to shown in Fig. 1 to Fig. 5, the rotor in the present embodiment further includes partition 20, and the partition 20 setting exists
Between adjacent two pieces of rotor punchings 10, which is provided with notch section 21 at the corresponding position of bore 11.It is lacked by this
The effect of oral area 21 uses convenient for enclosing to set to form a jet port with the rotor punching 10 of about 20 two sides of partition when by motor
When within the compressor, the air-flow that compressor pump sprays can be sprayed to stator radially along rotor inner passage, made
Air-flow takes away a part of heat in stator winding, so that motor stator be made to accelerate heat dissipation.
Preferably, the thickness of the partition 20 in the present embodiment is within the scope of 4mm to 6mm, such as 5mm.Avoid rotor
There is the excessive situation of leakage field and reduces motor performance.
When rotor punching 10 laminates, biggish one piece of 10 thickness of rotor punching is placed on lowest level, from the bottom to top successively according to
Fig. 1 and mode shown in fig. 5 are superimposed, and different rotor punching 10 is laminated according to a certain percentage, wherein the most thick rotor of thickness
Accounting of the quantity of punching 10 in entire rotor punching 10 is more than the 1/3 of entirety；Partition 20 laminates to be formed in rotor
Discharge portion be not higher than 5mm, it is excessive otherwise to will lead to motor flux leakage, and the decline of motor performance straight line is filled according to this ratio
It is folded rotor c.g. to be made to reduce, long shaft distortion is reduced, amount of deflection is reduced.
According to an embodiment of the invention, providing a kind of rotor as described below:
In the present embodiment, setting needs rotor core always to fold a height of 80mm, and 6 poles, one extremely to 5 every bore 11, so
In addition to partition 20, there are three pieces of rotor punchings 10, specific embodiment are as follows: it is minimum that the most thick rotor punching 10 of thickness is placed on iron core
Then layer, the height for the 30mm that is added to are changed and are laminated using partition 20, change second piece when being laminated to whole 34mm into and turn
Sub- punching 10 is laminated, and rotor core is integrally laminated to 54mm and stops using second piece of rotor punching 10, i.e., second piece turns
The Partial Height of sub- punching 10 is 20mm.Similarly, reusing partition 20 and be laminated to iron core height is 58mm, finally uses the
Three pieces of rotor punchings 10 are laminated to 80mm height.
On the whole each extremely corresponding every bore 11, in bottom surface, projection is overlapped on one side, and smaller one end every bore
11 projection to bottom surface is integrally incorporated in adjacent bigger every the magnet steel placed vertically in bore 11, can be made to generate oblique pole in this way
Or the effect of wrong pole, as shown in Fig. 6 and Fig. 7, the counter electromotive force of this example is than normal rotor more sinusoidalization and torque pulsation
It is smaller.
After rotor in the present embodiment is used within the compressor, gas rushes at rotor core after pump housing ejection,
Enter rotor every bore 11 along rotor punching 10, when gas flows to first piece of rotor punching 10 and second piece of rotor punching
When 10 intersection due to second piece of rotor punching 10 every 11 to the first pieces of rotor punchings of bore 10 every the transversal of bore 11
Area wants small, and portion gas is caused to be split, and sprays from the notch section 21 on partition 20.
According to another aspect of the present invention, a kind of compressor is provided, which includes motor, and motor is above-mentioned implementation
Motor in example.
It can be seen from the above description that the above embodiments of the present invention realized the following chievements:
(1) using special space structure above and below rotor, the magnet steel normally placed is made to generate the effect of oblique pole, wrong pole, in turn
The harmonic wave in motor gas-gap is reduced, motor torque ripple is reduced, improves motor electromagnetic noise；
(2) make rotor lightness sensation in the upper and heaviness in the lower, reduce rotor c.g., reduce crankshaft deformation and reduce amount of deflection, so as to improve motor coaxle
Degree, reduces the risk of electric machine chamber-sweeping；
(3) trimming is opened outside rotor, is cooled down stator winding using the upward air-flow of the pump housing, and increasing compressor can
By property, the service life is promoted, while reducing noise.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so that presently filed embodiment described herein for example can be in addition to herein
Sequence other than those of diagram or description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that
Be to cover it is non-exclusive include, for example, containing the process, method, system, product or equipment of a series of steps or units not
Those of be necessarily limited to be clearly listed step or unit, but may include be not clearly listed or for these processes, side
The intrinsic other step or units of method, product or equipment.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (13)
1. a kind of rotor characterized by comprising
Rotor punching (10), at least two pieces of rotor punchings (10), which laminate, is fixed together, on each rotor punching (10)
It is provided with and is arranged every bore (11) along same straight line every described on bore (11), each rotor punching (10), and each institute
The cross-sectional area every bore (11) stated on rotor punching (10) is different.
2. rotor according to claim 1, which is characterized in that be provided with magnetic slot on the rotor punching (10)
(12), described to be located at side of the magnetic slot (12) far from the rotor punching (10) center every bore (11).
3. rotor according to claim 1, which is characterized in that described every bore on each rotor punching (10)
(11) along the straight line arrangement for being parallel to the rotor axis.
4. rotor according to claim 1, which is characterized in that described every bore on each rotor punching (10)
(11) cross-sectional area becomes larger along the direction of rotor first end to the second end, and cross-sectional area is lesser described
It is biggish described in bore (11) that cross-sectional area is included in every projection of the bore (11) in the rotor end.
5. rotor according to claim 4, which is characterized in that transversal in adjacent two pieces of rotor punchings (10)
The biggish cross-sectional area every bore (11) of area is S1, the lesser cross-sectional area every bore (11) of cross-sectional area
For S2, wherein S2 > 1/3S1.
6. rotor according to claim 1, which is characterized in that described every bore on each rotor punching (10)
It (11) is kidney slot, the width of the kidney slot becomes larger along the direction of rotor first end to the second end, and phase
In adjacent two pieces of rotor punchings (10), the width of the wider kidney slot is a, and the width of the relatively narrow kidney slot is b,
Wherein, a/2 < b.
7. rotor according to claim 1, which is characterized in that each rotor punching (10) it is each extremely on it is described every
The number of bore (11) is x, and the block number of the rotor punching (10) is y, and the number of poles of the rotor is p, wherein x-p+1
=y.
8. rotor according to claim 7, which is characterized in that each rotor punching (10) it is each extremely on it is described every
The number x of bore (11) is 5, and the number of poles p of the rotor is 3, and the block number y of the rotor punching (10) is 3.
9. rotor according to claim 1, which is characterized in that along the rotor first end to the side of second end
To the thickness of the rotor punching (10) gradually becomes smaller.
10. rotor according to any one of claim 1 to 9, which is characterized in that the rotor further include every
Piece (20), the partition (20) are arranged between the adjacent two pieces rotor punchings (10), the partition (20) and described every magnetic
Hole (11) is provided with notch section (21) at corresponding position.
11. rotor according to claim 10, which is characterized in that the thickness of the partition (20) is in 4mm to 6mm model
In enclosing.
12. a kind of motor, including rotor, which is characterized in that the rotor is any one of claims 1 to 11 institute
The rotor stated.
13. a kind of compressor, including motor, which is characterized in that the motor is motor described in claim 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910615591.6A CN110212669A (en) | 2019-07-09 | 2019-07-09 | Rotor, motor and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910615591.6A CN110212669A (en) | 2019-07-09 | 2019-07-09 | Rotor, motor and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110212669A true CN110212669A (en) | 2019-09-06 |
Family
ID=67796834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910615591.6A Pending CN110212669A (en) | 2019-07-09 | 2019-07-09 | Rotor, motor and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110212669A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113708523A (en) * | 2021-08-10 | 2021-11-26 | 珠海格力节能环保制冷技术研究中心有限公司 | Segmented motor rotor assembly, motor, compressor and air conditioner |
-
2019
- 2019-07-09 CN CN201910615591.6A patent/CN110212669A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113708523A (en) * | 2021-08-10 | 2021-11-26 | 珠海格力节能环保制冷技术研究中心有限公司 | Segmented motor rotor assembly, motor, compressor and air conditioner |
| CN113708523B (en) * | 2021-08-10 | 2023-02-28 | 珠海格力节能环保制冷技术研究中心有限公司 | Segmented motor rotor assembly, motor, compressor and air conditioner |
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