CN105846558A - Motor and compressor - Google Patents
Motor and compressor Download PDFInfo
- Publication number
- CN105846558A CN105846558A CN201510021853.8A CN201510021853A CN105846558A CN 105846558 A CN105846558 A CN 105846558A CN 201510021853 A CN201510021853 A CN 201510021853A CN 105846558 A CN105846558 A CN 105846558A
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- motor
- magnet steel
- stator
- groove
- auxiliary tank
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- 229910000831 Steel Inorganic materials 0.000 claims description 45
- 239000010959 steel Substances 0.000 claims description 45
- 210000000515 tooth Anatomy 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 229910000859 α-Fe Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 14
- 230000010349 pulsation Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 210000001367 artery Anatomy 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The invention provides a motor and a compressor. The motor of the invention comprises a stator and a rotor matching the stator. The stator is provided with multiple stator teeth which are uniformly distributed along the circumferential direction. Each stator tooth is provided with an auxiliary slot, and the radial center line of each auxiliary slot and the radial center line of the corresponding stator tooth form an included angle Alpha. According to the invention, each stator tooth is provided with one auxiliary slot, and the radial center line of each auxiliary slot and the radial center line of the corresponding stator tooth form an included angle Alpha, namely, each auxiliary slot is deviated from the center of the corresponding stator tooth. Thus, by making use of the magnetic resistance effect and tooth slot effect of the deviated auxiliary slots, the amplitude of the minimum torque point of the motor is effectively improved, the effects of output power increase and torque ripple reduction are achieved, and the efficiency is enhanced.
Description
Technical field
The present invention relates to machine field, in particular to a kind of motor and compressor.
Background technology
In prior art, patent CN 102315700 A discloses a kind of by offering on the stator teeth
Equally distributed two auxiliary tanks weaken the technical scheme of cogging torque；Patent CN 103746473 A
Disclose and a kind of with stator rabbet, there is the auxiliary of certain proportion size by offering on the stator teeth
Groove, to improve air gap magnetic density waveform, improves the technical scheme of noise of motor；Patent CN 103904793 A
Disclose a kind of auxiliary tank by arranging inclination on the stator teeth, be used for producing skewed slot effect, optimize
Magnetic field and electromotive force, reduce the technical scheme of cogging torque；Patent CN 203339818 U discloses one
In by all having auxiliary tank on rotor, to weaken cogging torque, improve winding back emf waveform
Technical scheme.But in above prior art, its ultimate principle all as, by being provided with auxiliary
Groove reduces cogging torque, improves unloaded counter potential waveform, but has auxiliary tank rear motor and exert oneself and can decline,
Affecting electric efficiency, the auxiliary tank of inclination is difficult in technique, and above technical scheme is forever
It is difficult to effect on magnetic assist in synchronization reluctance motor.
Summary of the invention
It is desirable to provide a kind of can the motor of raising efficiency and compressor.
The invention provides a kind of motor, including stator and the rotor that coordinates with stator, setting on stator
There are the multiple stator tooths being uniformly distributed circumferentially, each stator tooth is provided with an auxiliary tank, auxiliary
Make an angle alpha between the radial centre lines of groove with the radial centre lines of corresponding stator tooth.
Further, 0.075 θ≤α≤0.25 θ, wherein, θ is tooth pitch.
Further, the width of stator tooth is K, the width of auxiliary tank is d, and auxiliary tank is radially
The degree of depth is d1, wherein, and 0.15k≤d≤0.25k, 0.5d≤d1≤2d.
Further, auxiliary tank is rectangular channel, arcuate groove, triangular groove or dovetail groove.
Further, the rotation side that direction is rotor of the radial centre lines of auxiliary tank deviation stator tooth
To.
Further, each pole of rotor is provided with the magnet steel groove that radially distributed multilamellar is curved,
Motor also includes the permanent magnet magnet steel being arranged in magnet steel groove.
Further, each magnet steel groove includes that Inner arc and external arc, Inner arc set with external arc bias
Put；Multilamellar magnet steel groove is positioned at the two ends top rake of the Inner arc of the magnet steel groove of outer circumferential side, makes magnet steel groove
Span is β, and wherein, n θ≤β≤(n+0.5) θ, n is positive integer.
Further, permanent magnet magnet steel is ferrite magnetic steel.
Further, rotor is provided with the central shaft hole coordinated with motor shaft and circumference is equally distributed
Rivet hole.
Present invention also offers a kind of compressor, including the compression pump housing and aforesaid motor.
Motor according to the present invention and compressor are by arranging auxiliary tank and auxiliary on each stator tooth
Help and make an angle alpha between the radial centre lines of groove and the radial centre lines of corresponding stator tooth, though auxiliary
The center of groove deviation stator tooth, thus utilize magnetoresistance and the slot effect of deviation auxiliary tank, permissible
Effectively the amplitude of lifting motor minimum torque point, reaches to increase the effect exerting oneself and reducing torque pulsation,
Thus raising efficiency.
Accompanying drawing explanation
The accompanying drawing of the part constituting the application is used for providing a further understanding of the present invention, the present invention
Schematic description and description be used for explaining the present invention, be not intended that the improper limit to the present invention
Fixed.In the accompanying drawings:
Fig. 1 is the cross section structure schematic diagram of motor of the prior art；
Fig. 2 is the cross section structure schematic diagram of the motor according to the present invention；
Fig. 3 is the cross section structure schematic diagram of the rotor of the motor according to the present invention；
Fig. 4 is torque versus's schematic diagram of the motor according to the present invention and existing motor.
Description of reference numerals:
1, stator；2, rotor；11, stator tooth；3, rivet hole；4, auxiliary tank；5, center
Axis hole.
Detailed description of the invention
Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As shown in Figures 2 to 4, according to the motor of the present invention, including stator 1 and coordinate with stator 1
Rotor 2, stator 1 is provided with the multiple stator tooths 11 being uniformly distributed circumferentially, each stator tooth 11
On be provided with an auxiliary tank 4, the radial direction of the radial centre lines of auxiliary tank 4 and corresponding stator tooth 11
Make an angle alpha between centrage.Comparing the prior art shown in Fig. 1, the present invention is at each stator tooth 11
On auxiliary tank 4 is set, and the radial center of the radial centre lines of auxiliary tank 4 and corresponding stator tooth 11
Make an angle alpha between line, i.e. auxiliary tank 4 deviates the center of stator tooth 11, thus utilizes deviation auxiliary tank
The magnetoresistance of 4 and slot effect, can the amplitude of effective lifting motor minimum torque point, reach to increase
Add the effect exerting oneself and reducing torque pulsation, thus raising efficiency.It addition, the present invention compares existing skill
Art arranges the scheme of multiple auxiliary tank, it is possible to effectively reduce air gap, prevent on each stator tooth 11
Reduce motor output drop during cogging torque so that motor is exerted oneself increases, pulsation reduction.
Preferably, shown in Fig. 2, auxiliary tank 4 deviates the side of the radial centre lines of stator tooth 11
To the direction of rotation for rotor 2, deviation angle α meets 0.075 θ≤α≤0.25 θ, and wherein, θ is tooth
Away from, i.e. θ=360 °/Z, Z are number of stator slots, select suitable deviation angle, it is possible to carry further
The amplitude of lifting motor minimum torque point, reaches to increase the effect exerting oneself and reducing torque pulsation, thus more
Lifting motor efficiency effectively.
Shown in Fig. 2, the width of stator tooth 11 is K, and the width of auxiliary tank 4 is d, auxiliary tank
4 degree of depth radially are d1, and wherein, 0.15k≤d≤0.25k, 0.5d≤d1≤2d, by limiting stator
The width of tooth 11 and the width of auxiliary tank 4 are d and auxiliary tank 4 degree of depth radially is between d1
Relation, can retrain the width d of auxiliary tank 4 and degree of depth d1, prevent width d excessive and cause
The impact that air gap is increased by auxiliary tank 4 magnetic resistance slot effect effect less than it, i.e. prevents because of auxiliary tank 4
Make motor average airgap excessive too greatly, the problem making motor output drop on the contrary；On the other hand,
Be also prevented from occurring d is too small and cause embodying effect, and the problem being difficult in technique realize.
Shown in Fig. 2, according to different motor demands or technological requirement, auxiliary tank 4 can be
Rectangular channel, arcuate groove, triangular groove or dovetail groove.
Shown in Fig. 2 and Fig. 3, it is arc that each pole of rotor 2 is provided with radially distributed multilamellar
The magnet steel groove of shape, motor also includes the permanent magnet magnet steel being arranged in magnet steel groove.Magnet steel groove is in rotor footpath
To circumference uniform distribution, permanent magnet magnet steel is mounted to make their polarity N, S on the side of stator
Setting alternately.Preferably, permanent magnet magnet steel uses the ferrite magnet of low cost, cost-effective.
Shown in Fig. 3, rotor 2 is provided with circumferential equally distributed rivet hole 3 and coordinates with motor shaft
Central shaft hole 5.
In figure 3, magnet steel groove is set to two-layer, is internal layer magnet steel groove 7 and outer layer magnet steel groove 6,
Each magnet steel groove includes Inner arc and external arc, Inner arc and external arc eccentric setting.I.e. such as Fig. 3 institute
Showing, the Inner arc 8 of internal layer magnet steel groove 7 and the center of circle of external arc 9, not in same point, use large eccentricity
Structure, eccentric throw h1, the Inner arc 10 of same outer layer magnet steel groove 6 and the center of circle of external arc 11 are the most not
In same point, use large eccentricity structure, eccentric throw h2, such that it is able to increase magnet steel groove span and magnet steel
Groove circular arc girth.
Preferably, by adjusting Inner arc and the eccentric throw of external arc of magnet steel groove, magnet steel groove can be made
Span be β, and n θ≤β≤(n+0.5) θ, n is the positive integers such as 1,2,3, and θ is a tooth pitch,
I.e. θ=360 °/Z, Z are number of stator slots.The span making magnet steel groove meets above-mentioned requirements, the most permissible
Increase motor to exert oneself；On the other hand limit magnet steel groove and stator teeth groove corresponding relation, effectively disperse magnetic force
Line, each magnet steel and teeth groove produce the interaction of teeth groove magnetoresistance and offset, and effectively reduce motor torque arteries and veins
Dynamic；Furthermore, after rotor magnetic steel groove uses large eccentricity structure, permanent magnet magnet steel not uniform thickness, its magnet steel is used
Amount is compared with existing example, and magnet steel consumption does not increase.
It is highly preferred that the prior art shown in comparison diagram 3 and Fig. 1, the present invention's shown in Fig. 3
In embodiment, by the Inner arc 8 two ends top rake of internal layer magnet steel groove 7, even if internal layer magnet steel groove 7 is interior
Circular arc 8 two ends horizontal expansion, thus increase the span of magnet steel groove further.
Shown in Fig. 4, Fig. 4 is prior art and one embodiment of the present of invention torque versus,
In figure, curve A is prior art torque curve, and curve B is that the torque of embodiments of the invention is bent
Line schematic diagram.In the case of other parameters of guarantee and magnet steel consumption are identical, correlation curve A and curve
B, it can be seen that the motor of embodiments of the invention is exerted oneself increases about 5%, electric efficiency promotes, electricity
Machine torque pulsation declines 62.8%, so, the motor of the present invention can effective raising efficiency, reduction motor
Tangential force and torque pulsation, thus reduce vibration noise.
Present invention also offers a kind of compressor, including the compression pump housing and aforesaid motor.Use aforementioned
Motor, it is possible to be effectively improved efficiency, and owing to vibration is less, it is possible to effectively reduce compressor
Vibration noise.
As can be seen from the above description, the above embodiments of the present invention achieve following technology effect
Really:
Motor according to the present invention and compressor, exert oneself big, and efficiency is high, can effectively reduce motor tangential
Power and torque pulsation, can effectively reduce motor and applied compression machine vibration noise thereof；Technique is easily achieved,
Manufacturing cost and the cost of material is low；
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for
For those skilled in the art, the present invention can have various modifications and variations.All essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included in the present invention
Protection domain within.
Claims (10)
1. a motor, including stator (1) and the rotor (2) that coordinates with described stator (1), its
It is characterised by, described stator (1) is provided with the multiple stator tooths (11) being uniformly distributed circumferentially,
An auxiliary tank (4), the footpath of described auxiliary tank (4) it is provided with on each described stator tooth (11)
Make an angle alpha between centrage with the radial centre lines of corresponding described stator tooth (11).
Motor the most according to claim 1, it is characterised in that
0.075 θ≤α≤0.25 θ, wherein, θ is tooth pitch.
Motor the most according to claim 1, it is characterised in that
The width of described stator tooth (11) is K, and the width of described auxiliary tank (4) is d, described auxiliary
Helping groove (4) degree of depth radially is d1, wherein, and 0.15k≤d≤0.25k, 0.5d≤d1≤2d.
Motor the most according to claim 1, it is characterised in that
Described auxiliary tank (4) is rectangular channel, arcuate groove, triangular groove or dovetail groove.
Motor the most according to claim 1, it is characterised in that
The direction of the radial centre lines that described auxiliary tank (4) deviates described stator tooth (11) is rotor
(2) direction of rotation.
Motor the most according to claim 1, it is characterised in that
Each pole of described rotor (2) is provided with the magnet steel groove that radially distributed multilamellar is curved,
Described motor also includes the permanent magnet magnet steel being arranged in described magnet steel groove.
Motor the most according to claim 6, it is characterised in that
Each described magnet steel groove includes Inner arc and external arc, and described Inner arc is eccentric with described external arc
Arrange；Multilamellar magnet steel groove is positioned at the two ends top rake of the Inner arc of the magnet steel groove of outer circumferential side, makes magnet steel groove
Span be β, wherein, n θ≤β≤(n+0.5) θ, n is positive integer.
Motor the most according to claim 6, it is characterised in that
Described permanent magnet magnet steel is ferrite magnetic steel.
Motor the most according to claim 1, it is characterised in that
It is provided with the central shaft hole (5) coordinated with motor shaft on described rotor (2) and circumference circumference is equal
The rivet hole (3) of even distribution.
10. a compressor, including the compression pump housing and motor, it is characterised in that described motor is
Motor according to any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510021853.8A CN105846558B (en) | 2015-01-15 | 2015-01-15 | motor and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510021853.8A CN105846558B (en) | 2015-01-15 | 2015-01-15 | motor and compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105846558A true CN105846558A (en) | 2016-08-10 |
| CN105846558B CN105846558B (en) | 2018-11-27 |
Family
ID=56579998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510021853.8A Active CN105846558B (en) | 2015-01-15 | 2015-01-15 | motor and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105846558B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108512320A (en) * | 2018-05-30 | 2018-09-07 | 广东威灵电机制造有限公司 | Stator core and electric rotating machine |
| WO2019174317A1 (en) * | 2018-03-16 | 2019-09-19 | 珠海格力电器股份有限公司 | Rotor structure, permanent magnet auxiliary synchronous reluctance motor and electric vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005192263A (en) * | 2003-12-24 | 2005-07-14 | Matsushita Electric Ind Co Ltd | Permanent magnet motor |
| CN202872485U (en) * | 2012-07-23 | 2013-04-10 | 广东肇庆爱龙威机电有限公司 | Permanent-magnet direct current motor with auxiliary slots of minimized cogging torque |
| CN203674941U (en) * | 2013-12-25 | 2014-06-25 | 珠海格力节能环保制冷技术研究中心有限公司 | Permanent magnet motor |
| CN203722350U (en) * | 2014-01-13 | 2014-07-16 | 广东美芝精密制造有限公司 | Motor for compressor and compressor with motor |
| CN203984105U (en) * | 2014-03-28 | 2014-12-03 | 湖北立锐机电有限公司 | Integral electric motor stator punching, stator core and use its electric rotating machine |
| CN204425060U (en) * | 2015-01-15 | 2015-06-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor and compressor |
-
2015
- 2015-01-15 CN CN201510021853.8A patent/CN105846558B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005192263A (en) * | 2003-12-24 | 2005-07-14 | Matsushita Electric Ind Co Ltd | Permanent magnet motor |
| CN202872485U (en) * | 2012-07-23 | 2013-04-10 | 广东肇庆爱龙威机电有限公司 | Permanent-magnet direct current motor with auxiliary slots of minimized cogging torque |
| CN203674941U (en) * | 2013-12-25 | 2014-06-25 | 珠海格力节能环保制冷技术研究中心有限公司 | Permanent magnet motor |
| CN203722350U (en) * | 2014-01-13 | 2014-07-16 | 广东美芝精密制造有限公司 | Motor for compressor and compressor with motor |
| CN203984105U (en) * | 2014-03-28 | 2014-12-03 | 湖北立锐机电有限公司 | Integral electric motor stator punching, stator core and use its electric rotating machine |
| CN204425060U (en) * | 2015-01-15 | 2015-06-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor and compressor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019174317A1 (en) * | 2018-03-16 | 2019-09-19 | 珠海格力电器股份有限公司 | Rotor structure, permanent magnet auxiliary synchronous reluctance motor and electric vehicle |
| US11689071B2 (en) | 2018-03-16 | 2023-06-27 | Gree Electric Appliances, Inc. Of Zhuhai | Rotor structure, permanent magnet auxiliary synchronous reluctance motor, and electric vehicle |
| CN108512320A (en) * | 2018-05-30 | 2018-09-07 | 广东威灵电机制造有限公司 | Stator core and electric rotating machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105846558B (en) | 2018-11-27 |
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Effective date of registration: 20180928 Address after: 519070, Jinji Hill Road, front hill, Zhuhai, Guangdong Applicant after: GREE ELECTRIC APPLIANCES,Inc.OF ZHUHAI Address before: 519070 science and technology building, 789 Jinji Road, Qianshan, Zhuhai, Guangdong Applicant before: GREE GREEN REFRIGERATION TECHNOLOGY CENTER Co.,Ltd. OF ZHUHAI |
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