CN109004775A - A kind of stator punching, motor and compressor - Google Patents
A kind of stator punching, motor and compressor Download PDFInfo
- Publication number
- CN109004775A CN109004775A CN201810759872.4A CN201810759872A CN109004775A CN 109004775 A CN109004775 A CN 109004775A CN 201810759872 A CN201810759872 A CN 201810759872A CN 109004775 A CN109004775 A CN 109004775A
- Authority
- CN
- China
- Prior art keywords
- stator
- tooth
- corner part
- force
- tooth root
- 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
- 238000004080 punching Methods 0.000 title claims abstract description 46
- 210000000515 tooth Anatomy 0.000 claims abstract description 11
- 230000011218 segmentation Effects 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 5
- 230000004907 flux Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000003507 refrigerant Substances 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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
-
- 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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
- H02K1/165—Shape, form or location of the slots
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a kind of stator punchings, motor and compressor, wherein stator punching includes stator yoke and multiple stator tooths for being arranged in the stator yoke, stator slot is formed between two neighboring stator tooth, each stator tooth includes tooth root, one end of the tooth root is connected in the stator yoke, there are two sides of the trough wall surface for being used separately as two neighboring stator slot on the tooth root of each stator tooth, the tooth root of at least one stator tooth is equipped with corner part, the corner part is arranged at least one side in two sides of the tooth root of stator tooth, the corner part quantity being provided on the side of corner part is at least one.When the magnetic line of force can generate inflection point when passing through the position where corner part in the present invention, the magnetic line of force is set to turn round, effectively change the path of the magnetic line of force, to uniformly whole magnetic line of force distribution, reduce magnetic force harmonic wave, the electromagnetic force for being subject to rotor is relatively uniform, reduces the torque ripple of rotor, increase output torque, improves electric efficiency.
Description
Technical field
The present invention relates to the technical field of motors that compressor uses, more particularly to a kind of stator punching, motor
And compressor.
Background technique
Existing frequency-changeable compressor uses permanent magnet synchronous motor, and the requirement to revolving speed control is higher and higher.Existing permanent-magnet synchronous
Rotor in motor is since the electromagnetic force being subject to is uneven so that rotor torque fluctuation is big so that rotor speed fluctuation compared with
Greatly, so as to cause compressor refrigerating capacity fluctuation, the discomfort of user experience is caused, and be easy to cause compressor in low frequency phase
Refrigerant soak phenomenon, causes cooling capacity to be mutated.
Summary of the invention
Non-uniform for the electromagnetic force that solves the problems, such as that existing rotor is subject to, the present invention provides a kind of stator punching, fixed
Son and motor.
The technical solution of the present invention is as follows: providing a kind of stator punching, including stator yoke and it is arranged in the stator yoke
Multiple stator tooths form stator slot between two neighboring stator tooth, and each stator tooth includes tooth root, and one end of the tooth root connects
It connects in the stator yoke, there are two sides of the trough wall surface for being used separately as two neighboring stator slot on the tooth root of each stator tooth
Face, which is characterized in that the tooth root of at least one stator tooth is equipped with corner part, and the tooth root of stator tooth is arranged in the corner part
On at least one side in two sides, the corner part quantity being provided on the side of corner part is at least one.
The side of trough wall surface in the stator yoke as stator slot is divided into multiple sides to be segmented by multiple stator tooths, until
A few side segmentation is equipped with the corner part, and the corner part quantity being provided in the side segmentation of corner part is at least
One.
The corner part is groove.
The groove shapes are arc-shaped, or the quadrangle of a line less.
The corner part is protrusion.
A corner part is equipped on two sides of the tooth root of each stator tooth.
Each side segmentation is equipped with a corner part.
Each stator tooth further includes the crown for being formed in the other end of the tooth root.
The present invention also provides a kind of motor, including stator core, the stator core include be stacked it is multiple fixed
Sub- punching, the stator punching are stator punching described above.
The present invention also provides a kind of compressors, including motor described above.
The present invention has the advantages that making the magnetic line of force when the magnetic line of force can generate inflection point when passing through the position where corner part
It turns round, effectively changes the path of the magnetic line of force, so that uniformly entirety magnetic line of force distribution, reduces magnetic force harmonic wave, be subject to rotor
Electromagnetic force is relatively uniform, reduces the torque ripple of rotor, increases output torque, improves electric efficiency.
Detailed description of the invention
Fig. 1 is the structure chart of stator punching in the first embodiment of the invention.
Fig. 2 is the structure chart of stator punching in second of embodiment of the invention.
Fig. 3 is the structure chart of stator punching in the third embodiment of the invention.
Fig. 4 is the structure chart of stator punching in the 4th kind of embodiment of the invention.
Fig. 5 is the structure chart of stator punching in the 5th kind of embodiment of the invention.
Fig. 6 is the structure chart of stator punching in the 6th kind of embodiment of the invention.
Fig. 7 is the structure chart of stator punching in the 7th kind of embodiment of the invention.
Fig. 8 is the structure chart of stator punching in the 8th kind of embodiment of the invention.
Fig. 9 is the structure chart of stator punching in the 9th kind of embodiment of the invention.
Figure 10 is the structure chart of stator punching in the tenth kind of embodiment of the invention.
Figure 11 is the structure chart of stator punching in a kind of embodiment of the present invention the tenth.
Figure 12 is the structure chart of stator punching in the 12nd kind of embodiment of the invention.
Figure 13 is the magnetic line of force path profile in the embodiment of the present invention on stator punching.
Figure 14 is using rotor when having reeded stator punching and existing stator punching on stator tooth in the present invention
Torque ripple comparison diagram.
Figure 15 is using raised stator punching and rotor when existing stator punching on stator tooth in the present invention
Torque ripple comparison diagram.
Figure 16 is using rotor when having reeded stator punching and existing stator punching in stator yoke in the present invention
Torque ripple comparison diagram.
Figure 17 is using rotor when having reeded stator punching and existing stator punching in stator yoke in the present invention
Torque ripple comparison diagram.
Figure 18 is to be fluctuated and exported with rotor torque when existing stator punching using the stator punching in the present invention to turn
Square comparison diagram.
Specific embodiment
As shown in Figure 1, the stator punching proposed in the embodiment of the present invention, including stator yoke 10 and it is set in stator yoke 10
Multiple stator tooths 20.In the present embodiment, stator yoke 10 is circular ring shape, and multiple stator tooths 20 are on the inner peripheral surface of stator yoke 10
Uniform intervals setting, each stator tooth are radially extended along stator yoke 10.
Stator slot 30 is formed between two neighboring stator tooth 20, each stator tooth 20 includes tooth root 21 and crown 22, tooth
One end of root 21 is connected in stator yoke 10, and the other end of tooth root 21 forms crown 22.
There are two sides of the trough wall surface for being used separately as two neighboring stator slot 30 on the tooth root 21 of each stator tooth 20,
Trough wall surface of i.e. one of side as a stator slot, another side is as adjacent with a stator slot another
The trough wall surface of a stator slot.The tooth root 21 of at least one stator tooth 20 is equipped with the corner part for changing magnetic line of force path, corner part
It is arranged at least one side in two sides of the tooth root 21 of stator tooth 20, is provided with the turning on the side of corner part
Portion's quantity is at least one.
In the present embodiment, it is equipped with a corner part on two sides of the tooth root 21 of each stator tooth 20, it is certainly each
Corner part, three corner parts, four corner parts there are two can also being set on side, even more, the corner part on two sides
Quantity can be equal, can be unequal.It is also possible to a side in two sides of the tooth root 21 of each stator tooth 20
It is equipped with a corner part, the quantity of corner part can also be two, three, four, even more.
In the present embodiment, corner part is groove 40, and 40 shape of groove is arc-shaped.
Groove shapes may be the quadrangle of few a line, as shown in Fig. 2, 40 shape of groove is the isosceles of few a line
It is trapezoidal.As shown in figure 3,40 shape of groove is the rectangular or square of few a line.
As shown in figure 4, corner part is protrusion 50, raised 50 shapes are arc-shaped.
Convex shape may be the quadrangle of few a line, as shown in figure 5, raised 50 shapes are the isosceles of few a line
It is trapezoidal.As shown in fig. 6, raised 50 shapes are the rectangular or square of few a line.
As shown in fig. 7, the side (being medial surface in the present embodiment) of the trough wall surface in stator yoke 10 as stator slot is more
A stator tooth 20 is divided into multiple sides to be segmented, and the segmentation of at least one side is equipped with the corner part for changing magnetic line of force path, if
The corner part quantity being equipped in the side segmentation of corner part is at least one.In the present embodiment.Each side segmentation, which is equipped with, to be changed
One corner part of variable magnetic force thread path, naturally it is also possible to it is two, it is three, even more.Corner part is groove 40, groove 40
Shape is arc-shaped.
Groove shapes may be the quadrangle of few a line, as shown in figure 8,40 shape of groove is the isosceles of few a line
It is trapezoidal.As shown in figure 9,40 shape of groove is the rectangular or square of few a line.
As shown in Figure 10, corner part is protrusion 50, and raised 50 shapes are arc-shaped.
Convex shape may be the quadrangle of few a line, as shown in figure 11, raised 50 shapes be lack a line etc.
Waist is trapezoidal.As shown in figure 12, raised 50 shapes are the rectangular or square of few a line.
As shown in figure 13, protrusion 50 is equipped in figure on two sides of tooth root, the magnetic line of force 60 is where by protrusion 50
Position when can generate inflection point, so that the magnetic line of force is turned round, effectively change the path of the magnetic line of force 60, thus the uniformly entirety magnetic line of force point
Cloth reduces magnetic force harmonic wave, and the electromagnetic force for being subject to rotor is relatively uniform, reduces the torque ripple of rotor, increases output torque,
Improve electric efficiency.
As shown in Figure 14 to Figure 18, label 1 represents the prior art, and label 2 represents the present invention.It can be seen that in stator
Groove or protrusion are set on tooth, groove or the raised torque ripple that can reduce rotor are set in stator yoke, it is possible to reduce motor
The fluctuation of revolving speed makes more steady under motor, compressor behavior.
As shown in figure 18, by formula: P2=T*n/9.55(P2- output power, T- output torque, n- revolving speed) it calculates, with
The promotion of output torque T, output power of motor P2 rise, and electric efficiency is η=P2/P1, therefore electric efficiency has promotion (P1
For input power).
The size of stator teeth and the size of stator yoke can be increased or decreased in the present invention, rationally control flux density,
Silicon steel sheet saturation degree is controlled, flux density is reduced, promotes motor output torque, raising efficiency.
The present invention also provides a kind of motor, including stator core, stator core includes the above-described embodiment being stacked
In multiple stator punchings.
The invention also discloses a kind of compressors, including above-mentioned motor.
Above specific embodiment is only to the design illustrated the present invention, and those skilled in the art are in this hair
Various deformation and variation can be made under bright design, these deformations and variation are included within protection scope of the present invention.
Claims (10)
1. a kind of stator punching, including stator yoke (10) and the multiple stator tooths (20) being arranged on the stator yoke (10), phase
Stator slot (30) are formed between adjacent two stator tooths (20), each stator tooth (20) includes tooth root (21), the tooth root (21)
One end be connected on the stator yoke (10), which is characterized in that on the tooth root (21) of each stator tooth (20) have use respectively
Make two sides of the trough wall surface of two neighboring stator slot (30), which is characterized in that the tooth root of at least one stator tooth (20)
(21) corner part, at least one side that the corner part is arranged in two sides of the tooth root (21) of stator tooth (20) are equipped with
On face, the corner part quantity being provided on the side of corner part is at least one.
2. stator punching according to claim 1, which is characterized in that as stator slot (30) on the stator yoke (10)
The side of trough wall surface is divided into multiple sides to be segmented by multiple stator tooths (20), at least one described side segmentation is equipped with described
Corner part, the corner part quantity being provided in the side segmentation of corner part are at least one.
3. stator punching according to claim 1 or 2, which is characterized in that the corner part is groove (40).
4. stator punching according to claim 3, which is characterized in that groove (40) shape is arc-shaped, or few
The quadrangle of a line.
5. stator punching according to claim 1 or 2, which is characterized in that the corner part is raised (50).
6. stator punching according to claim 1, which is characterized in that two sides of the tooth root (21) of each stator tooth (20)
A corner part is equipped on face.
7. stator punching according to claim 2, which is characterized in that each side segmentation is equipped with a corner part.
8. stator punching according to claim 1, which is characterized in that each stator tooth (20) further includes being formed in the tooth
The crown (22) of the other end of root (21).
9. a kind of motor, including stator core, the stator core includes the multiple stator punchings being stacked, and feature exists
In the stator punching is stator punching described in any item of the claim 1 to 8.
10. a kind of compressor, which is characterized in that including the motor described in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810759872.4A CN109004775A (en) | 2018-07-11 | 2018-07-11 | A kind of stator punching, motor and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810759872.4A CN109004775A (en) | 2018-07-11 | 2018-07-11 | A kind of stator punching, motor and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109004775A true CN109004775A (en) | 2018-12-14 |
Family
ID=64599005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810759872.4A Pending CN109004775A (en) | 2018-07-11 | 2018-07-11 | A kind of stator punching, motor and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109004775A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102959833A (en) * | 2010-06-25 | 2013-03-06 | 三菱电机株式会社 | Laminated core for dynamo-electric machine |
| CN104333152A (en) * | 2014-11-14 | 2015-02-04 | 广东美芝制冷设备有限公司 | Stator punching, motor and compressor |
| CN104767296A (en) * | 2015-04-22 | 2015-07-08 | 广东威灵电机制造有限公司 | Prefabricated stator punching, stator punching, stator and motor |
| CN205883016U (en) * | 2016-07-07 | 2017-01-11 | 洛阳中方实业有限公司 | Brushless motor |
| JP2017077046A (en) * | 2015-10-13 | 2017-04-20 | トヨタ自動車株式会社 | Dynamo-electric machine |
| CN107040057A (en) * | 2016-02-03 | 2017-08-11 | 德昌电机(深圳)有限公司 | Blower fan |
| CN208316428U (en) * | 2018-07-11 | 2019-01-01 | 珠海凌达压缩机有限公司 | A kind of stator punching, motor and compressor |
-
2018
- 2018-07-11 CN CN201810759872.4A patent/CN109004775A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102959833A (en) * | 2010-06-25 | 2013-03-06 | 三菱电机株式会社 | Laminated core for dynamo-electric machine |
| CN104333152A (en) * | 2014-11-14 | 2015-02-04 | 广东美芝制冷设备有限公司 | Stator punching, motor and compressor |
| CN104767296A (en) * | 2015-04-22 | 2015-07-08 | 广东威灵电机制造有限公司 | Prefabricated stator punching, stator punching, stator and motor |
| JP2017077046A (en) * | 2015-10-13 | 2017-04-20 | トヨタ自動車株式会社 | Dynamo-electric machine |
| CN107040057A (en) * | 2016-02-03 | 2017-08-11 | 德昌电机(深圳)有限公司 | Blower fan |
| CN205883016U (en) * | 2016-07-07 | 2017-01-11 | 洛阳中方实业有限公司 | Brushless motor |
| CN208316428U (en) * | 2018-07-11 | 2019-01-01 | 珠海凌达压缩机有限公司 | A kind of stator punching, motor and compressor |
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