CN202798196U - Permanent magnet switch flux linkage motor - Google Patents
Permanent magnet switch flux linkage motor Download PDFInfo
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- CN202798196U CN202798196U CN201220490955.6U CN201220490955U CN202798196U CN 202798196 U CN202798196 U CN 202798196U CN 201220490955 U CN201220490955 U CN 201220490955U CN 202798196 U CN202798196 U CN 202798196U
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Abstract
The utility model provides a permanent magnet switch flux linkage motor which comprises a stator core, a rotor core, armature windings and permanent magnets, wherein the a plurality of stator slots and stator teeth respectively arranged between two adjacent stator slots are arranged on the stator core, permanent magnet slots used for containing the permanent magnets are respectively arranged on the stator teeth, the armature windings are arranged in the stator slots, and magnet separation holes are arranged on the connection portions of the permanent magnet slots and the stator teeth. The magnet separation holes are adopted to replace magnet separation bridges so that the area of the peripheral connection portions of stator punched sheets is increased, and deformation of stators in assembling, testing and using can be reduced. The magnet separation holes serving as the connection portions and additionally arranged on the internal diameter of the stator punched sheets can further enhance the mechanical strength of the stators.
Description
Technical field
The utility model relates to a kind of flux linkage motor, relates in particular to a kind of permanent-magnetic-switch flux linkage motor.
Background technology
Motor is the main driver part in the modern industry system, and the motor of excellent performance is most important to whole drive system.In recent years, development along with power electronic technology, permanent magnetic material and Control Technique of Microcomputer, permanent-magnet brushless DC electric machine is developed rapidly, permanent-magnet brushless DC electric machine has efficiently, the characteristics of high power density, along with the appearance of high performance permanent magnetic materials, greatly improved power density and the performance of permanent-magnet brushless DC electric machine.Switched reluctance machines is because the characteristics such as simple in structure, good reliability obtain using more and more widely.In the middle of the stator tooth of switched reluctance machines, place the permanent-magnetic-switch flux linkage motor that permanent magnet obtains, combine the characteristics of switched reluctance machines and magneto, the characteristics such as existing switched reluctance machines property simple and reliable for structure is good have magneto power density high simultaneously concurrently.
Permanent-magnetic-switch flux linkage motor has the double-salient-pole structure, and is similar to switched reluctance machines, has simultaneously the advantage of switched reluctance machines and magneto.Motor stator is comprised of a plurality of cell blocks, and each cell block comprises the permanent magnet of a U-shaped iron core and a slice cutting orientation magnetizing, and the direction of magnetization of permanent magnet is relative in the adjacent cells.On the rotor without any type of winding, permanent magnet, slip ring etc.
Existing permanent-magnetic-switch flux linkage motor because stator punching is isolated by permanent magnet, requires high to production and processing.For general working condition, usually keep certain continuous position in the permanent magnet outside, so that the synthetic integral body of stator core.The continuous position of iron core must be designed very thinly, so that the high magnetic resistance of the saturated generation of this partial depth plays the effect every magnetic bridge.Because the connecting portion of punching is very thin, is easy to cause distortion, the fracture of punching, so that the manufacturing scrap rate increases.In addition, also there is the shortcoming of bad mechanical strength in the iron core that processing laminates, and stator is easy to cause the inner circle distortion owing to being subject to external pressure, and then affects the runnability of motor.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provides a kind of new permanent-magnetic-switch flux linkage motor, and it more is adapted to production and processing by the mechanical strength that has strengthened stator core every the magnetic hole is set.
The technical solution of the utility model is as follows:
A kind of permanent-magnetic-switch flux linkage motor, comprise stator core, rotor core, armature winding and permanent magnet, be provided with stator tooth between several stator slots and the two adjacent stator slots at described stator core, be provided with the permanent magnet trough of placing permanent magnet on the described stator tooth, described armature winding is arranged in the described stator slot, and its connecting portion between the edge of described permanent magnet trough and described stator tooth is provided with every the magnetic hole.
Therein among embodiment, the outer connecting portion at the external diameter edge of described permanent magnet trough and described stator tooth is provided with every the magnetic hole.
Therein among embodiment, the interior connecting portion at the internal diameter edge of described permanent magnet trough and described stator tooth is provided with every the magnetic hole.
Among embodiment, interior connecting portion and outer connecting portion between the both sides of the edge of described permanent magnet trough and described stator tooth are provided with every the magnetic hole therein.
Therein among embodiment, describedly be shaped as mounting hole, scallop hole or square hole every the magnetic hole.
Therein among embodiment, described every the magnetic hole an end and the distance between the edge of described stator tooth less than 1/4 of the length of the connecting portion between the edge of described permanent magnet trough and described stator tooth.
Therein among embodiment, described number every the magnetic hole is more than or equal to 2, and described adjacent two distances between the magnetic hole are 0.5 ~ 4mm.
Therein among embodiment, on the connecting portion between the described edge that is evenly distributed on described permanent magnet trough and described stator tooth every the magnetic hole.
Therein among embodiment, describedly circumferentially arrange along described stator core every the magnetic hole.
Among embodiment, described permanent magnet is ferrite or rare earth therein.
The beneficial effects of the utility model are:
1, the utility model adopts the area that replaces having increased every magnetic bridge the peripheral connecting portion of stator punching every the magnetic hole, can reduce the distortion of stator in assembling, test and use procedure; Increase the mechanical strength that can further strengthen stator every the magnetic hole as the coupling part at the stator punching internal diameter.
2, by reasonably designing shape, the size and location every the magnetic hole, can optimize the counter potential waveform of motor, harmonic reduction content.
3, employing can make the outside suffered stress dispersion of stator core every the magnetic pore structure, increases the mechanical strength of stator core, reduces the inner circle distortion that causes because stator core is outside stressed.
Description of drawings
Below in conjunction with concrete drawings and the specific embodiments, the utility model is further elaborated.
Fig. 1 is the overall schematic of an embodiment of permanent-magnetic-switch flux linkage motor of the present utility model;
Fig. 2 is the enlarged diagram every the magnetic hole of permanent-magnetic-switch flux linkage motor shown in Figure 1;
Fig. 3 is the overall schematic of another embodiment of permanent-magnetic-switch flux linkage motor of the present utility model;
Fig. 4 is the enlarged diagram every the magnetic hole of permanent-magnetic-switch flux linkage motor shown in Figure 3;
Fig. 5 is the overall schematic of another embodiment of permanent-magnetic-switch flux linkage motor of the present utility model;
Fig. 6 is the enlarged diagram every the magnetic hole of permanent-magnetic-switch flux linkage motor shown in Figure 5;
Fig. 7 is the schematic diagram every an embodiment of magnetic hole group.
Description of reference numerals: 1-stator core, 2-rotor core, 3-armature winding, 4-permanent magnet, 5-are every magnetic hole, 11-stator slot, 12-stator tooth, 13-permanent magnet trough.
Embodiment
The utility model provides a kind of permanent-magnetic-switch flux linkage motor novel, simple in structure.More particularly, the utility model mainly adopt every the magnetic hole replace in the past every magnetic bridge so that the mechanical strength of stator core increases, be convenient to processing.Below in detail preferred embodiment of the present utility model will be described in detail.
Referring to Fig. 1 to Fig. 7, the utility model provides a kind of permanent-magnetic-switch flux linkage motor, this permanent-magnetic-switch flux linkage motor comprises stator core 1, rotor core 2, armature winding 3 and permanent magnet 4, described stator core 1 comprises that several are along the stator tooth 12 between circumferential equally distributed stator slot 11 and the two adjacent stator slots 11, be provided with the permanent magnet trough 13 of placing permanent magnet 4 on the described stator tooth 12, described armature winding 3 is arranged in the described stator slot 11, is provided with every magnetic hole 5 at the connecting portion of described permanent magnet trough 13 with the edge of described stator tooth 12.
General, rotor core is to be laminated by the Alveolus type rotor punching to consist of, stator core is laminated by stator punching and consists of.In the present embodiment, armature winding and permanent magnet all are arranged on the stator core, are easy to heat radiation, be easy to the cooling of whole motor, can improve power density simultaneously; Be stator tooth between the stator slot, the outermost layer of the stator tooth in the present embodiment interconnects so that whole stator core is synthetic as a whole.During design for the connecting portion of permanent magnet trough and stator tooth, in order to prevent leakage field and electromagnetic interference, it is very thin that connecting portion between the edge of permanent magnet trough and stator tooth must design, and this connecting portion can the high magnetic resistance of the saturated generation of the degree of depth like this, plays the effect every magnetic bridge.But very thin distortion, the fracture that is easy to cause punching of connecting portion design, the manufacturing scrap rate increases.Therefore, present embodiment is provided with every the magnetic hole in this coupling part, because the magnetic permeability of air is very little, therefore every the magnetic hole so that the leakage field of the magnetic flux that permanent magnet produces by stator tooth reduce, play the effect every magnetic, be designed to can increase again during at fabrication design every the magnetic hole area of the connecting portion between the edge of permanent magnet trough and stator tooth, convenient processing reduces the distortion of stator core in assembling, test and use procedure simultaneously.
Stator tooth in the present embodiment comprises outermost the first arc section 121, the second arc section 122 of centre and the three-arc section 123 of internal layer; Outermost first arc section of all stator tooths interconnects so that stator core is as a whole, be stator slot in the middle of the second arc section of adjacent two stator tooths, the three-arc section of the internal layer of different stator tooths is separated from each other, and the arc length of three-arc section is greater than the arc length of the second arc section, the permanent magnet trough operated by rotary motion is in the center of whole stator tooth, general, be arranged on every the magnetic hole on the position of the first arc section.Permanent magnet is placed in the above-mentioned permanent magnet trough along the circumference cutting orientation magnetizing, the N utmost point, S utmost point alternative arrangement.Armature winding in the present embodiment adopts three-phase set Chinese style armature winding.5 teeth of rotor in the present embodiment, 6 teeth of stator, permanent magnet has 6.The utility model goes for the different numbers of teeth of various rotors and stator.
Can design in the i.e. part of the first arc section of the outer connecting portion at the external diameter edge of permanent magnet trough and stator tooth every the position in magnetic hole, also can be arranged on the i.e. three-arc section part of interior connecting portion between the internal diameter edge of permanent magnet trough and stator tooth, also can all arrange every the magnetic hole at the first arc section and three-arc section.
Better, as a kind of embodiment, referring to Fig. 1 and Fig. 2, the outer connecting portion 124 of present embodiment between the external diameter edge of described permanent magnet trough 13 and described stator tooth 12 is provided with every magnetic hole 5.At this moment, permanent magnet trough runs through whole the second arc section and three-arc section, and the three-arc section is divided into 2 little arc sections by permanent magnet trough.Employing is after the group of magnetic hole, and the coupling part at the external diameter edge of permanent magnet trough and the stator tooth increase area that namely the close outer field part of the first arc section can be suitable is so conveniently processed; Can make simultaneously the outside suffered stress dispersion of stator core, increase the mechanical strength of stator core, reduce because of the outside stressed distortion that causes of stator core.
Better, as a kind of embodiment, referring to Fig. 3 and Fig. 4, the interior connecting portion 125 of present embodiment between the internal diameter edge of described permanent magnet trough 13 and described stator tooth 12 is provided with every magnetic hole 5.In the present embodiment, permanent magnet trough does not run through whole three-arc section, that is to say, connecting portion 125 in the internal diameter marginal existence of permanent magnet trough and stator tooth, just be arranged on the interior connecting portion every magnetic hole group, usually be arranged on the three-arc section every magnetic hole group, present embodiment increases the mechanical strength that connecting portion can further strengthen stator core in a side of the close internal diameter of stator core.
Better, as a kind of embodiment, referring to Fig. 5 and Fig. 6, present embodiment is provided with every magnetic hole 5 with interior connecting portion 125 and the outer connecting portion 124 that the internal diameter edge of described stator tooth 12 links to each other with the external diameter both sides of edges in described permanent magnet trough 13.Internal side diameter and outside diameter at stator tooth all arrange the intensity that can strengthen stator core every the magnetic hole, convenient processing, and the while can better be optimized the counter potential waveform of motor, reduces harmonic content, plays separated magnetic effect.
Better, as a kind of embodiment, describedly be shaped as mounting hole, scallop hole or square hole every the magnetic hole.Shape every the magnetic hole can be multiple, the square hole that present embodiment adopts.
Better, as a kind of embodiment, described every the magnetic hole an end and the distance c between the edge of described stator tooth less than 1/4 of the length of the connecting portion between the edge of described permanent magnet trough and described stator tooth, and also should satisfy less than 1/4 distance every the edge of magnetic hole and stator tooth of the length of the connecting portion between the edge of described permanent magnet trough and described stator tooth under the requirement of process conditions the smaller the better every the other end in magnetic hole and the distance b between the described permanent magnet trough, same, satisfying every the distance of magnetic hole and permanent magnet trough under the requirement of process conditions the smaller the better, better every the magnetic effect.
Better, as a kind of embodiment, described number every the magnetic hole is greater than 1, and described adjacent two distance c between the magnetic hole are 0.5 ~ 4mm.Number every the magnetic hole can be 1, also can be a plurality of.If arrange a plurality ofly every the magnetic hole, then adjacent distance between the magnetic hole is less, and is better every the magnetic effect.
Better, as a kind of embodiment, on the connecting portion between the described edge that is evenly distributed on described permanent magnet trough and described stator tooth every the magnetic hole.The width that is to say described width every the magnetic hole and described permanent magnet trough is suitable.Be the leftmost side every high order end and the rightmost side distance between the low order end in magnetic hole in magnetic hole, equal the quantity n * every the distance c of the width in magnetic hole+(n-1) * between the magnetic hole every the magnetic hole.That is to say, should be evenly distributed on every magnetic hole group on the connecting portion between the edge of whole permanent magnet trough and stator tooth.Can determine according to the width every size, shape and the permanent magnet trough in magnetic hole every the quantity in magnetic hole in the present embodiment, be as the criterion with the connecting portion that can fully cut off permanent magnet and stator punching internal diameter, external diameter.
Better, as a kind of embodiment, describedly circumferentially arrange along described stator core every the magnetic hole.Permanent magnet trough circumferentially arranges along stator core, then circumferentially arranges along described stator core every the magnetic hole.
Better, as a kind of embodiment, described permanent magnet is the permanent magnetic materials such as ferrite or rare earth.
Better, as a kind of embodiment, described permanent-magnetic-switch flux linkage motor is electric rotating machine or linear electric motors.Of the present utility modelly go for various motors every the magnetic hole.
At last, need to prove, in this patent document, the relational terms such as first, second grade only is used for an entity or operation are made a distinction with another entity or operation, and not necessarily requires or hint and have any relation or sequentially between these entities or the operation.And, in this patent document, term " comprises ", " comprising " or its any other variant, it is intended to contain but not exclusive inclusion, thereby so that comprise process, method, article or the equipment of a series of key elements, not only comprise these key elements, but also comprise and clearly not listing and other key elements that those skilled in the art can know, perhaps also be included as the known requisite key element of these processes, method, article or equipment.
The above embodiment has only expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (10)
1. permanent-magnetic-switch flux linkage motor, comprise stator core, rotor core, armature winding and permanent magnet, described stator core comprises the stator tooth between several stator slots and the two adjacent stator slots, be provided with the permanent magnet trough of placing permanent magnet on the described stator tooth, described armature winding is arranged in the described stator slot, it is characterized in that: the connecting portion between the edge of described permanent magnet trough and described stator tooth is provided with every the magnetic hole.
2. permanent-magnetic-switch flux linkage motor according to claim 1 is characterized in that: the outer connecting portion at the external diameter edge of described permanent magnet trough and described stator tooth is provided with every the magnetic hole.
3. permanent-magnetic-switch flux linkage motor according to claim 1 is characterized in that: the interior connecting portion at the internal diameter edge of described permanent magnet trough and described stator tooth is provided with every the magnetic hole.
4. permanent-magnetic-switch flux linkage motor according to claim 1, it is characterized in that: interior connecting portion and outer connecting portion between the both sides of the edge of described permanent magnet trough and described stator tooth are provided with every the magnetic hole.
5. the described permanent-magnetic-switch flux linkage motor of any one according to claim 2 ~ 4 is characterized in that: describedly be shaped as mounting hole, scallop hole or square hole every the magnetic hole.
6. the described permanent-magnetic-switch flux linkage motor of any one according to claim 2 ~ 4 is characterized in that: described every the magnetic hole an end and the distance between the edge of described stator tooth less than 1/4 of the length of the connecting portion between the edge of described permanent magnet trough and described stator tooth.
7. the described permanent-magnetic-switch flux linkage motor of any one according to claim 2 ~ 4 is characterized in that: described number every the magnetic hole is more than or equal to 2, and described adjacent two distances between the magnetic hole are 0.5 ~ 4mm.
8. the described permanent-magnetic-switch flux linkage motor of any one according to claim 2 ~ 4 is characterized in that: on the connecting portion between the described edge that is evenly distributed on described permanent magnet trough and described stator tooth every the magnetic hole.
9. permanent-magnetic-switch flux linkage motor according to claim 1 is characterized in that: describedly circumferentially arrange along described stator core every the magnetic hole.
10. permanent-magnetic-switch flux linkage motor according to claim 1, it is characterized in that: described permanent magnet is ferrite or rare earth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220490955.6U CN202798196U (en) | 2012-09-24 | 2012-09-24 | Permanent magnet switch flux linkage motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220490955.6U CN202798196U (en) | 2012-09-24 | 2012-09-24 | Permanent magnet switch flux linkage motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202798196U true CN202798196U (en) | 2013-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220490955.6U Expired - Fee Related CN202798196U (en) | 2012-09-24 | 2012-09-24 | Permanent magnet switch flux linkage motor |
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| Country | Link |
|---|---|
| CN (1) | CN202798196U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683573A (en) * | 2012-09-24 | 2014-03-26 | 珠海格力节能环保制冷技术研究中心有限公司 | Permanent magnet switch magnetic flux linkage motor |
| KR101776688B1 (en) | 2015-12-18 | 2017-09-19 | 정일산업 주식회사 | Flux Switching Permanent Magnet Motor |
| CN108988520A (en) * | 2018-07-25 | 2018-12-11 | 浙江大学 | A kind of double salient-pole electric machine |
| CN112104111A (en) * | 2020-09-14 | 2020-12-18 | 北京世纪康华电气科技有限公司 | Exciter stator punching sheet, stator core, stator, hybrid excitation device and generator |
-
2012
- 2012-09-24 CN CN201220490955.6U patent/CN202798196U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683573A (en) * | 2012-09-24 | 2014-03-26 | 珠海格力节能环保制冷技术研究中心有限公司 | Permanent magnet switch magnetic flux linkage motor |
| CN103683573B (en) * | 2012-09-24 | 2017-03-22 | 珠海格力节能环保制冷技术研究中心有限公司 | Permanent magnet switch magnetic flux linkage motor |
| KR101776688B1 (en) | 2015-12-18 | 2017-09-19 | 정일산업 주식회사 | Flux Switching Permanent Magnet Motor |
| CN108988520A (en) * | 2018-07-25 | 2018-12-11 | 浙江大学 | A kind of double salient-pole electric machine |
| CN112104111A (en) * | 2020-09-14 | 2020-12-18 | 北京世纪康华电气科技有限公司 | Exciter stator punching sheet, stator core, stator, hybrid excitation device and generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20210924 |