CN102801231A - Permanent magnet motor stator structure - Google Patents
Permanent magnet motor stator structure Download PDFInfo
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- CN102801231A CN102801231A CN2012103133896A CN201210313389A CN102801231A CN 102801231 A CN102801231 A CN 102801231A CN 2012103133896 A CN2012103133896 A CN 2012103133896A CN 201210313389 A CN201210313389 A CN 201210313389A CN 102801231 A CN102801231 A CN 102801231A
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- permanent magnet
- magnet motor
- protuberance
- motor stator
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Abstract
The invention relates to a permanent magnet motor stator structure which comprises a stator yoke part and a stator toothed ring, wherein the stator toothed ring comprises a ring base part and a plurality of stator teeth outwards extending from the radial direction of the ring base part, the stator yoke part is sleeved outside the stator toothed ring, and the inner surface of the stator yoke part is provided with fixed grooves which is same with the stator teeth in quantity and shape, the stator teeth are inserted in the fixed grooves and are mutually tightly contacted. Preferably, the tops of the stator teeth are provided with convex parts, the bottoms of the fixed grooves are provided with concave parts adapted to the convex parts in shapes, and the convex parts are inserted in the concave parts and are mutually tightly contacted. The stator yoke part is integrally formed, or is formed by connecting a plurality of sections. The ring base part is integrally formed or formed by connecting a plurality of sections. The permanent magnet motor stator structure has the advantages of being skilled in structure design and simple in structure, improving mechanical strength, lowering influence to a magnetic chain, and increasing the groove filling rate, thereby increasing the capacity and the efficiency of a motor, and the integral mechanical strength of the motor, and being suitable for being popularized and applied.
Description
Technical field
The present invention relates to technical field of motors, particularly the magneto technical field specifically is meant a kind of permanent magnet motor stator structure.
Background technology
The permanent magnet motor stator structure is various, and its grooved is also various.With regard to stator, there are the full wafer stator of conventional whole stamping-out and the spliced stator that single tooth (as shown in Figure 1) is spliced.In some field, because the requirement of use occasion, the full wafer stator is inapplicable, and the spliced stator that has adopted single tooth to be spliced.But because the spliced stator of single tooth inevitably exists mechanical performance not high; Having caused whole stator to exist rocks; Mechanical strength is poor; Corresponding structure positions and laminates on phenomenons such as insufficient strength, single tooth concavo-convex semicircle or other structures and the stator yoke through tooth outside (non-air gap end), thereby constitutes one or one section stator core.Be characterized in that single tooth directly links to each other at inboard (air gap end), its splicing back performance on the machinery integral intensity of electric efficiency, motor is not as people's will.
Therefore, a kind of permanent magnet motor stator structure need be provided, with the raising mechanical strength, thus the machinery integral intensity of raising electric efficiency and motor.
Summary of the invention
The objective of the invention is to have overcome above-mentioned shortcoming of the prior art, a kind of permanent magnet motor stator structure is provided, this permanent magnet motor stator structural design is ingenious; Simple for structure; Improved mechanical strength, reduced influence, promoted copper factor magnetic linkage; Thereby improved the machinery integral intensity of capacity and the efficient and the motor of motor, be suitable for large-scale promotion application.
To achieve these goals; Permanent magnet motor stator structure of the present invention is characterized in, comprises stator yoke portion and stator ring gear; Said stator ring gear comprises annulus base portion and the some stator tooths that extend radially outwardly from said annulus base portion; Said stator yoke portion is set in outside the said stator ring gear, and the inner surface of said stator yoke portion offers the holddown groove that number is identical and shape adapts with said stator tooth, and said stator tooth is plugged in the said holddown groove and closely contact each other.
Preferably, the top of said stator tooth has protuberance, and the bottom of said holddown groove has the recess that the shape with said protuberance adapts, and said protuberance is plugged in the said recess and closely contact each other.
More preferably, said protuberance is semicircle, Double Circle, double columnar form or curved.
More preferably, said protuberance is mesa-shaped, pyriform or wedge shape.
More preferably, the protuberance of different stator tooths is identical or different.
Preferably, the distance between the different stator tooths is identical or different.
Preferably, said stator yoke portion is integrally formed, or is formed by connecting plurality of sections, and each section comprises two said holddown grooves at least.
Preferably, said annulus base portion is integrally formed, or is formed by connecting plurality of sections, and each section is extended with two said stator tooths at least.
More preferably, between section and the section for yi word pattern is connected, chamfering connection, chamfering connection or wedge angle connection.
Beneficial effect of the present invention specifically is:
1, permanent magnet motor stator structure of the present invention comprises stator yoke portion and stator ring gear, and said stator ring gear comprises annulus base portion and the some stator tooths that extend radially outwardly from said annulus base portion, and said stator yoke portion is set in outside the said stator ring gear; The inner surface of said stator yoke portion offers the holddown groove that number is identical and shape adapts with said stator tooth, and said stator tooth is plugged in the said holddown groove and closely contact each other, designs ingenious; Simple for structure; Improved mechanical strength, reduced influence, promoted copper factor magnetic linkage; Thereby improved the machinery integral intensity of capacity and the efficient and the motor of motor, be suitable for large-scale promotion application.
2, the top of the said stator tooth of permanent magnet motor stator structure of the present invention has protuberance; The bottom of said holddown groove has the recess that the shape with said protuberance adapts, and said protuberance is plugged in the said recess and closely contact each other, has increased contact area; Reduced its influence to the permanent magnetism magnetic linkage; Thereby reduced the motor iron loss, improved efficiency of motor, be suitable for large-scale promotion application.
3, the said annulus base portion of permanent magnet motor stator structure of the present invention is integrally formed, or is formed by connecting plurality of sections, and each section is extended with two said stator tooths at least, has improved its mechanical strength, has promoted the fail safe of motor, is suitable for large-scale promotion application.
4, adopt permanent magnet motor stator structure of the present invention, the form that rolls off the production line changes, and concentrates winding and distributed winding all can roll off the production line; Its special structure design has increased copper factor; Reduce the time of rolling off the production line, thereby promoted the power and the efficient of motor, be suitable for large-scale promotion application.
5, adopt permanent magnet motor stator structure of the present invention, compare, solved stator tooth insufficient strength, the bad problem of mechanical performance, be suitable for large-scale promotion application with the spliced stator of the single tooth of prior art.
Description of drawings
Fig. 1 is that the master of the single tooth of the spliced stator of existing single tooth looks sketch map.
Fig. 2 is that the master of first specific embodiment of the present invention looks sketch map.
Fig. 3 is that the master of second specific embodiment of the present invention looks sketch map.
Fig. 4 is that the master of the 3rd specific embodiment of the present invention looks sketch map.
Embodiment
In order more to be expressly understood technology contents of the present invention, the special following examples of lifting specify.
See also Fig. 2-shown in Figure 4; Permanent magnet motor stator structure of the present invention comprises stator yoke portion 1 and stator ring gear 2; Said stator ring gear 2 comprises annulus base portion 3 and the some stator tooths 4 that extend radially outwardly from said annulus base portion 3; Said stator yoke portion 1 is set in outside the said stator ring gear 2, and the inner surface of said stator yoke portion 1 offers the holddown groove that number is identical and shape adapts 5 with said stator tooth 4, and said stator tooth 4 is plugged in the said holddown groove 5 and closely contact each other.
In order further to increase contact area; Reduced influence to the permanent magnetism magnetic linkage; See also Fig. 2-shown in Figure 4, in first to the 3rd specific embodiment of the present invention, the top of said stator tooth 4 has protuberance 6; The bottom of said holddown groove 5 has the recess 7 that the shape with said protuberance 6 adapts, and said protuberance 6 is plugged in the said recess 7 and closely contact each other.
Said protuberance 6 can adopt any suitable shape, and more preferably, said protuberance 6 is semicircle, Double Circle, double columnar form or curved.See also shown in Figure 2ly, in first specific embodiment of the present invention, said protuberance 6 is semicircle, and is corresponding, and said recess 7 also is semicircle, both concavo-convex cooperations.See also shown in Figure 3ly, in second specific embodiment of the present invention, said protuberance 6 is a double columnar form, and corresponding, said recess 7 also is a double columnar form, both concavo-convex cooperations.In the 3rd specific embodiment of the present invention, said protuberance 6 also is semicircle, and is corresponding, and said recess 7 also is semicircle, both concavo-convex cooperations.
More preferably, said protuberance 6 can also be mesa-shaped, pyriform or wedge shape.Because said recess 7 adapts with said protuberance 6 shapes, therefore, said recess 7 should be mesa-shaped, pyriform or wedge shape mutually, both concavo-convex cooperations.
The protuberance 6 of different stator tooths 4 can be identical or different, and correspondingly, the recess 7 of different fixing groove 5 can be identical or different.See also Fig. 2-shown in Figure 4, in first to the 3rd specific embodiment of the present invention, the protuberance 6 of different stator tooths 4 is identical, and then the recess 7 of different fixing groove 5 is also identical.
Distance between the different stator tooths 4 can be identical or different, and correspondingly, the distance between the different fixing groove 5 can be identical or different.See also Fig. 2-shown in Figure 4, in first to the 3rd specific embodiment of the present invention, the distance between the different stator tooths 4 is identical, and the distance between the different fixing groove 5 is also identical.
Said stator yoke portion 1 can have any suitable structure, and preferably, said stator yoke portion 1 is integrally formed, or is formed by connecting plurality of sections, and each section comprises two said holddown grooves 5 at least.See also Fig. 2-shown in Figure 3, in first to second specific embodiment of the present invention, said stator yoke portion 1 is integrally formed.See also shown in Figure 4ly, in the 3rd specific embodiment of the present invention, said stator yoke portion 1 is formed by connecting 4 sections, and each section comprises three said holddown grooves 5.
Said annulus base portion 3 to be to have any suitable structure, and preferably, said annulus base portion 3 is integrally formed, or is formed by connecting plurality of sections, and each section is extended with two said stator tooths 4 at least.See also Fig. 2-shown in Figure 4, in first to the 3rd specific embodiment of the present invention, said annulus base portion 3 is integrally formed.
If said annulus base portion 3 is formed by connecting plurality of sections, then can adopt any suitable syndeton between section and the section, more preferably, between section and the section for yi word pattern is connected, chamfering connection, chamfering connection or wedge angle connection.
The present invention is on the basis to the single tooth research of the spliced stator of single tooth of prior art as shown in Figure 1, and its shape and structure are designed again.The stator that will be spliced to form by single tooth changes into by stator yoke portion 1 and forming with stator ring gear 2 two parts.
Be extended with stator tooth 4 on the annulus base portion 3 of stator ring gear 2 of the present invention, there is holddown groove 5 in stator yoke portion 1, is complementary with the shape of stator tooth 4, plays good fixation and increases the effect that contact-making surface reduces stator iron loss.The top of stator tooth 4 is provided with protuberance 6, and the bottom of holddown groove 5 has recess 7, concavo-convex cooperation; Increased the magnetic conductance between stator ring gear 2 and the stator yoke portion 1, its influence to the electromagnetism magnetic linkage has been dropped to minimum, said annulus base portion 3 is integrally formed; Or be formed by connecting plurality of sections; Each section is extended with two said stator tooths 4 at least, and then has improved the mechanical performance of whole stator ring gear 2, phenomenon such as its whole stator after assembling can not existed wave, rock; Improve the copper factor of stator winding installation, and then promoted the capacity and the efficient of motor.
The present invention compared with prior art has following outstanding substantive distinguishing features and marked improvement:
1) stator ring gear 2 be designed to a tooth and tooth link into one or by the stator ring gear 2 that plurality of sections is formed, improved its mechanical strength, promoted the fail safe of motor.
2) stator yoke portion 1 is connected design with the teeth groove of stator ring gear 2, through increasing contact area, reduces its influence to the permanent magnetism magnetic linkage, thereby has reduced the motor iron loss, has improved efficiency of motor.
3) behind the use stator ring gear 2, the form that rolls off the production line of stator changes, and concentrates winding and distributed winding all can roll off the production line, and its special structure design has increased copper factor, has reduced the time of rolling off the production line, thereby has promoted the power and the efficient of motor.
4) compare with the spliced stator of single tooth of prior art, solved stator teeth insufficient strength, the bad problem of mechanical performance.
To sum up, permanent magnet motor stator structural design of the present invention is ingenious, simple for structure; Improved mechanical strength, reduced influence, promoted copper factor magnetic linkage; Thereby improved the machinery integral intensity of capacity and the efficient and the motor of motor, be suitable for large-scale promotion application.
In this specification, the present invention is described with reference to its certain embodiments.But, still can make various modifications and conversion obviously and not deviate from the spirit and scope of the present invention.Therefore, specification and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (9)
1. permanent magnet motor stator structure; It is characterized in that; Comprise stator yoke portion and stator ring gear, said stator ring gear comprises annulus base portion and the some stator tooths that extend radially outwardly from said annulus base portion, and said stator yoke portion is set in outside the said stator ring gear; The inner surface of said stator yoke portion offers the holddown groove that number is identical and shape adapts with said stator tooth, and said stator tooth is plugged in the said holddown groove and closely contact each other.
2. permanent magnet motor stator structure according to claim 1; It is characterized in that; The top of said stator tooth has protuberance, and the bottom of said holddown groove has the recess that the shape with said protuberance adapts, and said protuberance is plugged in the said recess and closely contact each other.
3. permanent magnet motor stator structure according to claim 2 is characterized in that, said protuberance is semicircle, Double Circle, double columnar form or curved.
4. permanent magnet motor stator structure according to claim 2 is characterized in that, said protuberance is mesa-shaped, pyriform or wedge shape.
5. permanent magnet motor stator structure according to claim 2 is characterized in that the protuberance of different stator tooths is identical or different.
6. permanent magnet motor stator structure according to claim 1 is characterized in that the distance between the different stator tooths is identical or different.
7. permanent magnet motor stator structure according to claim 1 is characterized in that, said stator yoke portion is integrally formed, or is formed by connecting plurality of sections, and each section comprises two said holddown grooves at least.
8. permanent magnet motor stator structure according to claim 1 is characterized in that, said annulus base portion is integrally formed, or is formed by connecting plurality of sections, and each section is extended with two said stator tooths at least.
9. permanent magnet motor stator structure according to claim 8 is characterized in that, between section and the section for yi word pattern is connected, chamfering connection, chamfering connection or wedge angle connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103133896A CN102801231A (en) | 2012-08-29 | 2012-08-29 | Permanent magnet motor stator structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103133896A CN102801231A (en) | 2012-08-29 | 2012-08-29 | Permanent magnet motor stator structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102801231A true CN102801231A (en) | 2012-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103133896A Pending CN102801231A (en) | 2012-08-29 | 2012-08-29 | Permanent magnet motor stator structure |
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| Country | Link |
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| CN (1) | CN102801231A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103545947A (en) * | 2013-10-24 | 2014-01-29 | 捷和电机制品(深圳)有限公司 | Closed-slot motor |
| CN103825388A (en) * | 2012-11-16 | 2014-05-28 | 财团法人工业技术研究院 | Switched reluctance motor stator and winding lead frame structure |
| CN109004776A (en) * | 2018-07-17 | 2018-12-14 | 珠海格力电器股份有限公司 | Pin-connected panel stator module, motor and fan |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301075A (en) * | 2000-09-29 | 2001-06-27 | 许俊甫 | Combined stator structure of motor |
| CN201383715Y (en) * | 2009-02-25 | 2010-01-13 | 中山大洋电机股份有限公司 | Stator structure |
| DE102010037588A1 (en) * | 2010-09-16 | 2012-03-22 | Lloyd Dynamowerke Gmbh & Co. Kg | Segment for use in stator, for electrical machine, has grooves for receiving array of coils arranged in first and second layers, where sides of coil in another array of coils are arranged in third layer |
-
2012
- 2012-08-29 CN CN2012103133896A patent/CN102801231A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301075A (en) * | 2000-09-29 | 2001-06-27 | 许俊甫 | Combined stator structure of motor |
| CN201383715Y (en) * | 2009-02-25 | 2010-01-13 | 中山大洋电机股份有限公司 | Stator structure |
| DE102010037588A1 (en) * | 2010-09-16 | 2012-03-22 | Lloyd Dynamowerke Gmbh & Co. Kg | Segment for use in stator, for electrical machine, has grooves for receiving array of coils arranged in first and second layers, where sides of coil in another array of coils are arranged in third layer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103825388A (en) * | 2012-11-16 | 2014-05-28 | 财团法人工业技术研究院 | Switched reluctance motor stator and winding lead frame structure |
| CN103825388B (en) * | 2012-11-16 | 2016-06-08 | 财团法人工业技术研究院 | Switched reluctance motor stator and winding lead frame structure |
| CN103545947A (en) * | 2013-10-24 | 2014-01-29 | 捷和电机制品(深圳)有限公司 | Closed-slot motor |
| CN109004776A (en) * | 2018-07-17 | 2018-12-14 | 珠海格力电器股份有限公司 | Pin-connected panel stator module, motor and fan |
| CN109004776B (en) * | 2018-07-17 | 2024-03-26 | 珠海格力电器股份有限公司 | Pin-connected panel stator module, motor and fan |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121128 |