CN105553130A - Stator core, stator and motor - Google Patents
Stator core, stator and motor Download PDFInfo
- Publication number
- CN105553130A CN105553130A CN201610111858.4A CN201610111858A CN105553130A CN 105553130 A CN105553130 A CN 105553130A CN 201610111858 A CN201610111858 A CN 201610111858A CN 105553130 A CN105553130 A CN 105553130A
- Authority
- CN
- China
- Prior art keywords
- radial
- teeth portion
- stator core
- stator
- face
- 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
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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
- H02K1/141—Stator cores with salient poles consisting of C-shaped cores
- H02K1/143—Stator cores with salient poles consisting of C-shaped cores of the horse-shoe type
-
- 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
- H02K1/148—Sectional cores
-
- 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)
Abstract
The invention discloses a stator core, a stator and a motor. The stator core comprises a radial exterior structure and a radial interior structure separately arranged along the radial direction; the radial exterior structure comprises a first barrel part and a plurality of tooth parts uniformly distributed along the inner circumference of the first barrel part; the radial interior structure comprises a second barrel part and a plurality of second tooth parts uniformly distributed along the outer circumference of the second barrel part and corresponding to the plurality of first tooth parts one by one, wherein the radial inner end face of each first tooth part abuts against the radial outer end face of the corresponding second tooth part. According to the stator core provided by the invention, with the arrangement of the first tooth parts, the radial heights of the second tooth parts are lowered, the stress of the second barrel part is decreased, thus the deformation of the second barrel part is reduced, the structural strength of the stator core is reinforced, and thereby the stator core can be applied to larger motors in the case of well controlling the magnetic flux leakage of the motors.
Description
Technical field
The present invention relates to technical field of motors, particularly a kind of stator core, stator and motor.
Background technology
In order to reduce cogging torque, as shown in Figure 1, Figure 2 and Figure 3, stator core 10 of the prior art is set to tooth yoke isolating construction.Wherein, as shown in Figure 2, the multi-faceted column of yoke portion structure 11 is the inner peripheral surface in 111, first portion 111 of first portion to be cross section be regular polygon.As shown in Figure 3, teeth portion structure 12 comprise second portion 121 and be evenly located at second portion 121 periphery with each plane multiple teeth portion 122 one to one of aforementioned multi-faceted column.The radial outer end face of each teeth portion 122 is carried out being connected with the corresponding flat in first portion 111 thus is formed stator core 10.
The notch of stator core 10 of the prior art is 0 above, therefore can reduce the cogging torque of motor.
But, when the outside dimension of motor is larger, in order to ensure the structural strength of motor, will ensure that the distortion in second portion 121 of teeth portion structure 12 is less, therefore the radial height being located at the connecting portion 121A between adjacent teeth portion 122 will design larger, but the problem that the radial height conference of connecting portion 121A brings leakage field serious.
To sum up, if the stator core 10 of tooth yoke isolating construction of the prior art be used in relatively large number motor on there is structural strength and the irreconcilable contradiction of leakage field, be therefore difficult to be applied on the motor of larger number.
Summary of the invention
The object of the present invention is to provide a kind of stator core, stator and motor, stator core can be applied on the motor of larger number when controlling motor flux leakage preferably.
First aspect present invention provides a kind of stator core, comprise radially outer structure and the inner radial structure of radially split setting, radially outer structure comprises first portion and equally distributed multiple first teeth portion of inner circumferential along first portion, inner radial structure comprise second portion and be uniformly distributed along the periphery in second portion and with multiple first teeth portion multiple second teeth portion one to one, wherein, the radial inner end face of each first teeth portion is docked with the radial outer end face of the second corresponding teeth portion.
Further, the radial height of the first teeth portion is greater than the radial height of the second teeth portion.
Further, the first teeth portion width to reduce gradually or constant from radial outside to radially inner side.
Further, the width of the second teeth portion increases from radial outside gradually to radially inner side.
Further, the radial inner end face of the first teeth portion is the first plane, and the radial outer end face of the second teeth portion is the second plane, and the first plane and the second plane fit.
Further, the smallest radial height of the connecting portion between the second adjacent teeth portion in second portion is less than or equal to 0.5mm and is more than or equal to 0.1mm.
Further, between radially outer structure and inner radial structure be interference fit.
A second aspect of the present invention provides a kind of stator, comprises the stator core of any one of a first aspect of the present invention.
Further, stator also comprises insulation framework, and insulation framework is located in the first teeth portion of radially outer structure.
A third aspect of the present invention provides a kind of motor, comprises the stator of second aspect present invention.
Based on stator core provided by the invention, stator and motor, stator core comprises radially outer structure and the inner radial structure of radially split setting, radially outer structure comprises first portion and equally distributed multiple first teeth portion of inner circumferential along first portion, inner radial structure comprise second portion and be uniformly distributed along the periphery in second portion and with multiple first teeth portion multiple second teeth portion one to one, wherein, the radial inner end face of each first teeth portion is docked with the radial outer end face of the second corresponding teeth portion.Structural first teeth portion of radially outer be arranged so that the height of the second teeth portion diminishes, and then alleviate the stressed of second portion, the distortion in second portion reduces, strengthen the structural strength of stator core, stator core can be applied on the motor of larger number when controlling motor flux leakage preferably.In addition, the radial height of the connecting portion of stressed second teeth portion making the connection in second portion adjacent that diminishes in second portion can design less, thus can reduce the leakage field of motor when motor model is constant.
By referring to the detailed description of accompanying drawing to exemplary embodiment of the present invention, further feature of the present invention and advantage thereof will become clear.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the stator core of the tooth yoke isolating construction of prior art;
Fig. 2 is the structural representation of the yoke portion structure in Fig. 1;
Fig. 3 is the structural representation of the teeth portion structure in Fig. 1;
Fig. 4 is the structural representation of the stator core of the embodiment of the present invention;
Fig. 5 is the structural representation of the radially outer structure in Fig. 4;
Fig. 6 is the structural representation of the inner radial structure in Fig. 4.
Each Reference numeral represents respectively:
10-stator core; 11-yoke portion structure; 111-first portion; 12-teeth portion structure; 121-second portion; 121A-connecting portion; 122-teeth portion; 20-stator core; 21-radially outer structure; 211-first portion; 212-first teeth portion; 22-inner radial structure; 221-second portion; 221A-connecting portion; 222-second teeth portion.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Illustrative to the description only actually of at least one exemplary embodiment below, never as any restriction to the present invention and application or use.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Unless specifically stated otherwise, otherwise positioned opposite, the numerical expression of the parts of setting forth in these embodiments and step and numerical value do not limit the scope of the invention.Meanwhile, it should be understood that for convenience of description, the size of the various piece shown in accompanying drawing is not draw according to the proportionate relationship of reality.May not discuss in detail for the known technology of person of ordinary skill in the relevant, method and apparatus, but in the appropriate case, technology, method and apparatus should be regarded as a part of authorizing specification.In all examples with discussing shown here, any occurrence should be construed as merely exemplary, instead of as restriction.Therefore, other example of exemplary embodiment can have different values.It should be noted that: represent similar terms in similar label and letter accompanying drawing below, therefore, once be defined in an a certain Xiang Yi accompanying drawing, then do not need to be further discussed it in accompanying drawing subsequently.
By according to Fig. 4 to Fig. 6, the structure of the stator core of the embodiment of the present invention is described in detail below.
As shown in Figure 4, the stator core 20 of the embodiment of the present invention comprises radially outer structure 21 and inner radial structure 22, and wherein, radially outer structure 21 and inner radial structure 22 radially split are arranged.
As shown in Figure 5, radially outer structure 21 comprises first portion 211 and the first teeth portion 212, first teeth portion 212 is uniformly distributed in the inner circumferential in first portion 211.
As shown in Figure 6, inner radial structure 22 comprises second portion 221 and the second teeth portion 222.Wherein, the second teeth portion 222 is uniformly distributed on the periphery in second portion 221.And the second teeth portion 222 and the first teeth portion 212 one_to_one corresponding.
As shown in Figure 4, the core tooth of stator core 20 to be docked with the radial outer end face of the second corresponding teeth portion 222 by the radial inner end face of the first teeth portion 212 and is formed.
Due to core tooth be by the first teeth portion 212 and the second teeth portion 222 dimerous, compared with prior art, the radial height of the second teeth portion 222 just can design less, thus second portion 221 is stressed less, then the distortion in second portion 221 is less, ensure that structural strength, thus stator core 20 can be applied on the motor of larger number when controlling motor flux leakage preferably.
Preferably, second portion 221 comprises the connecting portion 221A be located between the second adjacent teeth portion 222.When the radial height of the second teeth portion 222 designs lower, then can make that connecting portion 221A's is stressed less, when motor model is constant, so just can reduce the radial height of connecting portion 221A, thus reduce leakage field.
In the present embodiment, in order to make stator core 20 leakage field on the basis ensureing structural strength minimum, the smallest radial height of connecting portion 223 is preferably less than or equal to 0.5mm and is more than or equal to 0.1mm.Optimal design is 0.2mm.Now just need the radial height of more rational first teeth portion 212 of design and the second teeth portion 222.
Preferably, as shown in Figure 5 and Figure 6, the radial height of the first teeth portion 212 is greater than the radial height of the second teeth portion 222.Core tooth is connected to form by the first teeth portion 212 and the second teeth portion 222, therefore when the radial height of the first teeth portion 212 is greater than the radial height of the second teeth portion 222, the radial height of the second teeth portion 222 can design less, thus make second portion 221 stressed less, Reducing distortion, ensure that structural strength better.
More firm in order to make the first teeth portion 212 be connected with the second teeth portion 222, the radial inner end face of first teeth portion 212 of the present embodiment is set to the first plane, and the radial outer end face of the second teeth portion 222 is set to the second plane.First plane and the second plane fit.
In addition preferably, between radially outer structure 21 and inner radial structure 22 be interference fit.
Such as, when in the present embodiment, radially outer structure 21 is connected with inner radial structure 22, the first plane and the second plane fit, and can adopt the direct interference fit of larger interference power therebetween; Also can be that the first plane and the second plane fit, and the method adopting slight interference power to add glue bonding be fixedly connected with.
Preferably, the width of the first teeth portion reduces from radial outside gradually to radially inner side.The width of the first teeth portion reduces from radial outside gradually to radially inner side, and the opening between the first so adjacent teeth portion can be larger, facilitates mounting framework and coiling.
In the present embodiment, as illustrated in Figures 5 and 6, the width of the first teeth portion 212 is constant, and the width of the second teeth portion 222 increases gradually from radial outside to radially inner side.
Radially outer structure 21 is laminated by multiple first punching, same, and inner radial structure 22 is also laminated by multiple second punching.
First punching is provided with uniform button point.Therefore mutually fastened by button point between the first adjacent punching, multiple first punching riveted joint is formed radially outer structure 21.Similarly, the second punching is also provided with and detains uniformly a little, mutually fastened by button point between the second adjacent punching, multiple second punching riveted joint is formed inner radial structure 22.
Preferably, the first punching is provided with six button points, and the second punching is provided with three button points.
In the present embodiment, installing insulating skeleton in radially outer structure 21, and inner radial structure 22 can be installed in radially outer structure 21 after complete line and form stator.
The stator core of various embodiments of the present invention comprises radially outer structure and inner radial structure.The core tooth of stator core is interconnected to constitute by the first teeth portion of radially outer structure and the second teeth portion of inner radial structure.Therefore, the radial height of the second teeth portion just can design less, thus make the stressed less of second portion, ensure that the distortion in second portion is less, ensure that the structural strength of stator core, therefore the stator core of the embodiment of the present invention can be applied on the motor of larger number when controlling motor flux leakage preferably.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or carry out equivalent replacement to portion of techniques feature; And not departing from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope of request of the present invention protection.
Claims (10)
1. a stator core, it is characterized in that, comprise radially outer structure (21) and the inner radial structure (22) of radially split setting, described radially outer structure (21) comprises first portion (211) and equally distributed multiple first teeth portion (212) of inner circumferential along described first portion (211), described inner radial structure (22) comprise second portion (221) and be uniformly distributed along the periphery of described second portion (221) and with described multiple first teeth portion (212) multiple second teeth portion (222) one to one, wherein, the radial inner end face of each described first teeth portion (212) is docked with the radial outer end face of corresponding described second teeth portion (222).
2. stator core according to claim 1, is characterized in that, the radial height of described first teeth portion (212) is greater than the radial height of described second teeth portion (222).
3. stator core according to claim 1, is characterized in that, the width of described first teeth portion (212) to reduce or constant gradually from radial outside to radially inner side.
4. stator core according to claim 1, is characterized in that, the width of described second teeth portion (222) increases from radial outside gradually to radially inner side.
5. stator core according to claim 1, it is characterized in that, the radial inner end face of described first teeth portion (212) is the first plane, and the radial outer end face of described second teeth portion (222) is the second plane, and described first plane and described second plane fit.
6. stator core according to claim 1, it is characterized in that, the smallest radial height of the connecting portion (221A) be positioned between adjacent described second teeth portion (222) of described second portion (221) is less than or equal to 0.5mm and is more than or equal to 0.1mm.
7. stator core according to any one of claim 1 to 6, is characterized in that, is interference fit between described radially outer structure (21) and described inner radial structure (22).
8. a stator, is characterized in that, comprises the stator core according to any one of claim 1 to 7.
9. stator according to claim 8, is characterized in that, described stator also comprises insulation framework, and described insulation framework is located in described first teeth portion of described radially outer structure.
10. a motor, is characterized in that, comprises stator as claimed in claim 8 or 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610111858.4A CN105553130A (en) | 2016-02-29 | 2016-02-29 | Stator core, stator and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610111858.4A CN105553130A (en) | 2016-02-29 | 2016-02-29 | Stator core, stator and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105553130A true CN105553130A (en) | 2016-05-04 |
Family
ID=55832129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610111858.4A Pending CN105553130A (en) | 2016-02-29 | 2016-02-29 | Stator core, stator and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105553130A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107086680A (en) * | 2017-05-26 | 2017-08-22 | 淮安威灵电机制造有限公司 | Motor stator and the motor with it |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6455025A (en) * | 1987-08-25 | 1989-03-02 | Olympus Optical Co | Motor |
| JPH07241049A (en) * | 1994-02-24 | 1995-09-12 | Fanuc Ltd | Stator for synchronous servo motor |
| US5698917A (en) * | 1995-09-25 | 1997-12-16 | Glacier Rpb Inc. | Electromagnetic bearing with a stationary armature canning arrangement |
| JP2004072824A (en) * | 2002-08-01 | 2004-03-04 | Yaskawa Electric Corp | Stator for ac motor |
| EP1659672A1 (en) * | 2004-11-22 | 2006-05-24 | Minebea Co., Ltd. | Stator for an electrical machine, method for manufacturing a stator and DC motor |
| WO2012011168A1 (en) * | 2010-07-21 | 2012-01-26 | トヨタ自動車株式会社 | Insulator, motor, and method for manufacturing stator comprising insulator and coil |
| CN102468695A (en) * | 2010-11-05 | 2012-05-23 | 丰田自动车株式会社 | Stator core |
| CN103166334A (en) * | 2011-12-08 | 2013-06-19 | 陈伟禧 | Split-type motor stator and motor |
| JP2013247801A (en) * | 2012-05-28 | 2013-12-09 | Mitsubishi Electric Corp | Armature and method for manufacturing the same |
| CN205407435U (en) * | 2016-02-29 | 2016-07-27 | 珠海格力节能环保制冷技术研究中心有限公司 | Stator core , stator and motor |
-
2016
- 2016-02-29 CN CN201610111858.4A patent/CN105553130A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6455025A (en) * | 1987-08-25 | 1989-03-02 | Olympus Optical Co | Motor |
| JPH07241049A (en) * | 1994-02-24 | 1995-09-12 | Fanuc Ltd | Stator for synchronous servo motor |
| US5698917A (en) * | 1995-09-25 | 1997-12-16 | Glacier Rpb Inc. | Electromagnetic bearing with a stationary armature canning arrangement |
| JP2004072824A (en) * | 2002-08-01 | 2004-03-04 | Yaskawa Electric Corp | Stator for ac motor |
| EP1659672A1 (en) * | 2004-11-22 | 2006-05-24 | Minebea Co., Ltd. | Stator for an electrical machine, method for manufacturing a stator and DC motor |
| WO2012011168A1 (en) * | 2010-07-21 | 2012-01-26 | トヨタ自動車株式会社 | Insulator, motor, and method for manufacturing stator comprising insulator and coil |
| CN102468695A (en) * | 2010-11-05 | 2012-05-23 | 丰田自动车株式会社 | Stator core |
| CN103166334A (en) * | 2011-12-08 | 2013-06-19 | 陈伟禧 | Split-type motor stator and motor |
| JP2013247801A (en) * | 2012-05-28 | 2013-12-09 | Mitsubishi Electric Corp | Armature and method for manufacturing the same |
| CN205407435U (en) * | 2016-02-29 | 2016-07-27 | 珠海格力节能环保制冷技术研究中心有限公司 | Stator core , stator and motor |
Non-Patent Citations (2)
| Title |
|---|
| 周希章等: "《新编电工常用计算手册》", 31 January 2006, 机械工业出版社 * |
| 黄国治等: "《中小旋转电机设计手册（第2版）》", 31 January 2014, 中国电力出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107086680A (en) * | 2017-05-26 | 2017-08-22 | 淮安威灵电机制造有限公司 | Motor stator and the motor with it |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160504 |
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| RJ01 | Rejection of invention patent application after publication |