CN110460174A - Stator core, motor and compressor - Google Patents
Stator core, motor and compressor Download PDFInfo
- Publication number
- CN110460174A CN110460174A CN201910849881.7A CN201910849881A CN110460174A CN 110460174 A CN110460174 A CN 110460174A CN 201910849881 A CN201910849881 A CN 201910849881A CN 110460174 A CN110460174 A CN 110460174A
- Authority
- CN
- China
- Prior art keywords
- stator core
- salient point
- ontology
- core ontology
- stator
- 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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
-
- 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
Abstract
The present invention provides a kind of stator core, motor and compressor.The stator core includes stator core ontology, and the periphery wall of the stator core ontology is equipped with multiple salient points；The stator core ontology is fixed in fixing piece in a manner of point contact by the salient point.Salient point is set on stator core body peripheral wall, so that stator core ontology is fixed by the point contact type of salient point, therefore the fixation contact area for greatly reducing stator core ontology reaches and reduces the vibratory output that stator is transferred to shell, reduces stator because of the increased iron loss of interference fit stress.
Description
Technical field
The invention belongs to Compressor Technology fields, and in particular to a kind of stator core, motor and compressor.
Background technique
When existing compressor electric motor and shell assemble, shell inner circle is shiny surface, and motor stator outer circle is other than trimming
It is also shiny surface, it is to be fixed on motor stator by hot jacket that the outer circle and shell inner circle of stator core, which are interference fit connection,
In shell, due to shell uneven heating or part itself fault of construction, may cause stator occur deforming after the assembly is completed etc. it is existing
As to influence concentricity, the efficiency of motor can be reduced and increase compressor noise.Motor oscillating mainly passes through stator core yoke
Portion is transmitted on shell, if the contact surface of motor and shell is larger to will increase vibration of compressor and noise, can make entire stator
Iron core increases iron loss, reduces electric efficiency, influences the efficiency of compressor complete machine.
In order to facilitate the assembly of shell and stator, reduces vibration of compressor, reduces stator core deformation, occur relevant
Technical report, such as a kind of motor stator punching, are provided with stator inner hole on the stator punching of motor, and the circumferential direction of stator inner hole is set
It is equipped with radiating groove, and the external margin of motor stator punching is also provided with circumferentially distributed peripheral groove, it can be to avoid electricity
There is the case where Internal Hole Deformation in machine stator, guarantees the concentricity of rotor and stator, to reduce energy consumption, reduces and vibrates and mention
The service life of high compressor.But the technology does not account for the path for how reducing vibration transmitting, reduces stator because interference is answered
The increased iron loss of power.
Or such as a kind of motor, wherein both stator core and shell using it is raised matched with groove by the way of filled
Match, stator core be nested in shell, ensure that the positioning accuracy of stator, reduces the difference in height of compressor rotor,
But the processing technology complexity of shell is also increased simultaneously, increases production cost, is also transmitted without reducing motor to shell
Vibratory output and reduction stator are because of the increased iron loss of interference fit stress.
Summary of the invention
Therefore, it the technical problem to be solved in the present invention is that providing a kind of stator core, motor and compressor, can reduce
The vibration that motor is transmitted to shell reduces stator and is interference fitted and increased iron loss.
To solve the above-mentioned problems, the present invention provides a kind of stator core, including stator core ontology, the stator core
The periphery wall of ontology is equipped with multiple salient points；The stator core ontology is fixed on fixation by the salient point in a manner of point contact
In part.
Preferably, the salient point is hemisphere structure, and the center of circle of the hemisphere structure is located at the stator core ontology
Outside wall surface on.
Preferably, the extended line of diameter where the center of circle of the salient point is located at the internal tooth center line of the stator core ontology
On.
Preferably, the internal tooth includes teeth portion and tooth boots, and on the cross section of the stator core ontology, the salient point is straight
Diameter A, the teeth portion width B, the tooth boots width C size be comparably B < A < C.
Preferably, the slot number Q of the stator core ontology, when Q is even number, the circumferentially upper quantity of the salient point is 2n, Q >=
2n≥4；When Q is odd number, the circumferentially upper quantity of the salient point is 2n+1, Q >=2n+1 >=3；N is positive integer.
Preferably, the axial height of the stator core ontology is L, and quantity is m to the salient point in the axial direction, in axial direction most
The vertical range of the center of circle of the outside salient point and nearest stator core ontology end face is E, the adjacent salient point in axial direction
Circle center distance D, meet following relationship: (L-2E)/D < m < L/A.
Preferably, the material of the salient point is silicon steel or elastic material.
According to another aspect of the present invention, a kind of motor, including stator core as described above are provided.
Preferably, the motor includes electric machine casing, and the stator core ontology is set in the electric machine casing, described
Salient point and the electric machine casing inner wall are interference fit.
In accordance with a further aspect of the present invention, a kind of compressor, including stator core as described above or institute as above are provided
The motor stated.
A kind of stator core provided by the invention, including stator core ontology, on the periphery wall of the stator core ontology
Equipped with multiple salient points；The stator core ontology is fixed in fixing piece in a manner of point contact by the salient point.In stator iron
Salient point is set on core body peripheral wall, so that stator core ontology is fixed by the point contact mode of salient point, therefore
The fixation contact area for greatly reducing stator core ontology reaches and reduces the vibratory output that stator is transferred to shell, reduces stator
Because of the increased iron loss of interference fit stress.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the stator core of the embodiment of the present invention；
Fig. 2 is the top view of the stator core of the embodiment of the present invention；
Fig. 3 is the outer wall expanded schematic diagram of the stator core of the embodiment of the present invention；
Fig. 4 is the structural schematic diagram of the motor of the embodiment of the present invention；
Fig. 5 is the vibration acceleration comparison diagram of the motor of the embodiment of the present invention and a point of existing motor；
Fig. 6 is the vibration acceleration comparison diagram of the motor of the embodiment of the present invention and another point of existing motor；
Fig. 7 is the comparison diagram of stress iron loss in the motor of the embodiment of the present invention；
Fig. 8 is the electric efficiency comparison diagram of the embodiment of the present invention；
Fig. 9 is the comparison diagram of the circulation area of the motor of the embodiment of the present invention.
Appended drawing reference indicates are as follows:
1, stator core ontology；11, salient point；12, internal tooth；121, teeth portion；122, tooth boots；2, electric machine casing.
Specific embodiment
In conjunction with referring to FIG. 1 to FIG. 4, according to an embodiment of the invention, a kind of stator core, including stator core ontology
1, the periphery wall of the stator core ontology 1 is equipped with multiple salient points 11；The stator core ontology 1 by the salient point 11 with
Point contact mode is fixed in fixing piece.
Salient point 11 is set on the periphery wall of stator core ontology 1, and stator core ontology 1 is fixed by salient point 11 with periphery
Part carries out point contact type and fixes, and since salient point 11 is to be contacted by point contact mode with fixing piece, maximumlly reduces
The area that stator core ontology 1 is in contact with fixing piece, so as to reduce the vibratory output that motor is transmitted to fixing piece, and drop
Low stator core ontology 1 reduces body vibration and noise because of the increased iron loss of interference fit stress.
Salient point 11 is hemisphere structure, and the center of circle of the hemisphere structure is located in the outside wall surface of stator core ontology 1；Salient point
11 are located at the spherosome structure on 1 outer wall of stator core ontology using the center of circle, and stability is good.
Where the center of circle of salient point 11 is located at 12 center line of internal tooth of stator core ontology 1 on the extended line of diameter, it is fixed to avoid
Sub- 1 inner circle of core body and groove profile can improve concentricity, and improve the efficiency and reduction of motor because of hot jacket influence generation deformation
Vibration and noise.Preferably, the internal tooth 12 of stator core ontology 1 includes teeth portion 121 and tooth boots 122, in stator core ontology 1
On cross section, the 11 diameter A of salient point, 121 width B of the teeth portion, 122 width C of tooth boots size be comparably B < A < C,
Motor circulation area can be increased, avoid increasing recirculation hole on rotor and influencing motor magnetic circuit and reduce rotor mechanical strength.
The setting quantity of salient point 11 and the slot number of stator core ontology 1 have relationship, and the slot number Q, Q of stator core ontology 1 are
When even number, the circumferential upper quantity of salient point 11 is 2n, Q >=2n >=4；When Q is odd number, the circumferential upper quantity of salient point 11 is 2n+1, Q >=
2n+1≥3；N is positive integer.
In addition, the axial height L of stator core ontology 1, the quantity m in the axial direction of salient point 11 is convex described in outermost in axial direction
11 center of circle and the vertical range E of nearest 1 end face of stator core ontology are put, the circle center distance D of adjacent salient point 11 on same axis,
Meet following relationship: (L-2E)/D < m < L/A.
Salient point 11 is the main component of vibration damping, and material can be identical as 1 material of stator core ontology, can also be elastic material
Material.Since stator core ontology 1 is usually that silicon steel sheet is formed by stacking, salient point 11 be may be provided on single silicon steel sheet outer wall, or by more
A adjacent silicon steel sheet is composed.
Stator core of the present invention adds salient point 11, such 1 He of stator core ontology in the opposite outer wall position of stator internal tooth 12
The contact of shell is point and face, can reduce the area that stator core ontology 1 is in contact with shell, maximumlly so as to subtract
Vibratory output that small machine is transmitted to shell and reduce stator because of the increased iron loss of interference fit stress, at the same increase stator and shell it
Between gap be conducive to improve compressor electric motor circulation area.
The embodiment of the present invention, a kind of motor, including stator core as described above.
Motor includes electric machine casing 2, and stator core ontology 1 is set in the electric machine casing 2, salient point 11 and electric machine casing
2 inner walls are interference fit.Stator core ontology 1 is fixed in electric machine casing 2 by salient point 11 in a manner of point contact, and salient point 11 with
2 inner wall of electric machine casing is interference fit, so that the electric machine assembly comprising stator and rotor in electric machine casing 2, produces in operation
Raw vibration can only be transferred to electric machine casing 2 by salient point 11, and this face fit system farthest reduces contact surface
Product, so that vibratory output transmitting is also greatly reduced, as shown in figures 5-9, accordingly because the iron loss of interference fit stress also reduces, circulation area increases
Add, be compared with the prior art, vibration acceleration reduces 0.59~9.63mm/s2, stator stress iron loss reduction 5~10%, motor
Efficiency improves 0.23~0.65, and circulation area increases 90~160%.
The embodiment of the present invention, a kind of compressor, including stator core as described above or motor as described above.
Those skilled in the art will readily recognize that the respective embodiments described above can be free under the premise of not conflicting
Ground combination, superposition.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.With
It is only the preferred embodiment of the present invention described in upper, it is noted that for those skilled in the art, not
Under the premise of being detached from the technology of the present invention principle, several improvements and modifications can also be made, these improvements and modifications also should be regarded as this
The protection scope of invention.
Claims (10)
1. a kind of stator core, which is characterized in that including stator core ontology (1), the periphery wall of the stator core ontology (1)
It is equipped with multiple salient points (11)；The stator core ontology (1) is fixed on fixation by the salient point (11) in a manner of point contact
In part.
2. stator core according to claim 1, which is characterized in that the salient point (11) is hemisphere structure, described half
The center of circle of sphere structure is located in the outside wall surface of the stator core ontology (1).
3. stator core according to claim 2, which is characterized in that the center of circle of the salient point (11) is located at the stator iron
Where internal tooth (12) center line of core ontology (1) on the extended line of diameter.
4. stator core according to claim 3, which is characterized in that the internal tooth (12) includes teeth portion (121) and tooth boots
(122), on the cross section of the stator core ontology (1), salient point (11) the diameter A, the teeth portion (121) width B, institute
The size for stating tooth boots (122) width C is comparably B < A < C.
5. stator core according to claim 1,2,3 or 4, which is characterized in that the slot number of the stator core ontology (1)
When Q, Q are even number, quantity is 2n in salient point (11) circumferential direction, Q >=2n >=4；When Q is odd number, the salient point (11) is circumferential
Upper quantity is 2n+1, Q >=2n+1 >=3；N is positive integer.
6. stator core according to claim 3, which is characterized in that the axial height of the stator core ontology (1) is
L, quantity is m to the salient point (11) in the axial direction, the center of circle of salient point (11) described in outermost and the nearest stator iron in axial direction
The vertical range of core ontology (1) end face is E, and the circle center distance of the adjacent salient point (11) is D in axial direction, meets following relationship:
(L-2E)/D<m<L/A。
7. stator core according to claim 1, which is characterized in that the material of the salient point (11) is silicon steel or elastic material
Material.
8. a kind of motor, which is characterized in that including stator core as claimed in claim 1.
9. motor according to claim 8, which is characterized in that the motor includes electric machine casing (2), the stator core
Ontology (1) is set in the electric machine casing (2), and the salient point (11) and the electric machine casing (2) inner wall are interference fit.
10. a kind of compressor, which is characterized in that including stator core as claimed in claim 1 or such as claim
Any motor of 8-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910849881.7A CN110460174A (en) | 2019-09-02 | 2019-09-02 | Stator core, motor and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910849881.7A CN110460174A (en) | 2019-09-02 | 2019-09-02 | Stator core, motor and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110460174A true CN110460174A (en) | 2019-11-15 |
Family
ID=68491389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910849881.7A Pending CN110460174A (en) | 2019-09-02 | 2019-09-02 | Stator core, motor and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110460174A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203722444U (en) * | 2013-12-30 | 2014-07-16 | 张琼 | Stator of synchronous motor |
| CN203933181U (en) * | 2014-07-03 | 2014-11-05 | 珠海凌达压缩机有限公司 | A kind of rotor compressor and motor stator punching thereof |
| CN204205741U (en) * | 2014-10-13 | 2015-03-11 | 广东威灵电机制造有限公司 | Stator core and stator, motor |
| CN105790455A (en) * | 2014-12-26 | 2016-07-20 | 德昌电机(深圳)有限公司 | Inner rotor motor and stator structure thereof |
| CN109962541A (en) * | 2017-12-26 | 2019-07-02 | 上海海立电器有限公司 | The manufacturing method of motor stator, compressor and compressor |
-
2019
- 2019-09-02 CN CN201910849881.7A patent/CN110460174A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203722444U (en) * | 2013-12-30 | 2014-07-16 | 张琼 | Stator of synchronous motor |
| CN203933181U (en) * | 2014-07-03 | 2014-11-05 | 珠海凌达压缩机有限公司 | A kind of rotor compressor and motor stator punching thereof |
| CN204205741U (en) * | 2014-10-13 | 2015-03-11 | 广东威灵电机制造有限公司 | Stator core and stator, motor |
| CN105790455A (en) * | 2014-12-26 | 2016-07-20 | 德昌电机(深圳)有限公司 | Inner rotor motor and stator structure thereof |
| CN109962541A (en) * | 2017-12-26 | 2019-07-02 | 上海海立电器有限公司 | The manufacturing method of motor stator, compressor and compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191115 |
|
| RJ01 | Rejection of invention patent application after publication |