CN203456956U - Excitation stator lamination and excitation stator core - Google Patents
Excitation stator lamination and excitation stator core Download PDFInfo
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- CN203456956U CN203456956U CN201320522779.4U CN201320522779U CN203456956U CN 203456956 U CN203456956 U CN 203456956U CN 201320522779 U CN201320522779 U CN 201320522779U CN 203456956 U CN203456956 U CN 203456956U
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- segmental punching
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Abstract
The utility model provides an excitation stator lamination and an excitation stator core. The excitation stator lamination is obtained through splicing two or more sector plates. Each sector comprises at least one tooth which inwards extends along a radial direction. Two sides of each sector plate are respectively provided with a first splicing surface and a second splicing surface. Each first splicing surface is provided with a projection, and each second splicing surface is provided with a guiding groove. When two or more section plates are spliced, the projection on the first splicing surface of one sector plate can be accommodated in the guiding groove on the second splicing surface of another sector plate. Furthermore after splicing the sector plates to an annular member, the adjacent two teeth of the excitation stator lamination are different, wherein one tooth is provided with the groove. The excitation stator core is obtained through laminating and assembling a plurality of excitation stator lamination layers, wherein the splicing lines formed by the adjacent sector plate layers are not superposed, and furthermore the teeth with the grooves are matched with one another. According to the excitation stator lamination, annular plates are replaced by the sector plates, thereby realizing high material utilization rate and reducing mold cost.
Description
Technical field
The utility model relates to a kind of stator lasmination, also relates to a kind of stator core, particularly a kind of excitation stator lasmination and excitation stator core.
Background technology
Than common stator core, the size of excitation stator core is less, and it is shorter to laminate length, and conventional method often adopts whole punching to be overrided to form.As shown in Figure 1, traditional excitation stator lasmination is annular, is that full wafer die sinking is stamped to form, the complex structure of mould, and cost is higher.This annular lamination production process blank waste is serious, and stock utilization is lower.
Punching in larger-size common stator core at present has the mode that has adopted the stator lasmination being spliced by a plurality of segmental punchings, but generally adopt the shortcoming of segmental punching to be: stiffness degradation unshakable in one's determination, the more whole punching of assembly technology is complicated, and because segmental punching splicing exists gap, so temperature rise unshakable in one's determination is higher, performance unshakable in one's determination reduces.
Utility model content
The utility model embodiment provides a kind of excitation stator lasmination and excitation stator core, not only can meet the performance requirement of iron core, and can improve stock utilization and reduce manufacturing cost.
The utility model embodiment provides a kind of excitation stator lasmination, described excitation stator lasmination is to be spliced by two and above segmental punching, described in each, segmental punching at least comprises a tooth radially extending internally, described in each, the both sides of segmental punching are respectively the first Mosaic face and the second Mosaic face, described the first Mosaic face is provided with projection, and described the second Mosaic face is provided with gathering sill; When two and the splicing of above segmental punching, the projection on the first Mosaic face of a segmental punching can be contained in the gathering sill on the second Mosaic face of another segmental punching; And the adjacent teeth that is spliced into the rear described excitation stator lasmination of annular is different, and one of them tooth is provided with groove.
Further, above-mentioned excitation stator lasmination is spliced by 3,4,5,6,8,10 or 12 described segmental punchings.
Further, the outer shroud edge of above-mentioned segmental punching is provided with at least one spill groove.
Further, above-mentioned spill groove is arranged on described segmental punching on the outer shroud edge of the center line of described tooth.
When above-mentioned excitation stator lasmination is spliced by 6 described segmental punchings, when described in each, segmental punching comprises two teeth, above-mentioned spill groove is 2.
Further, the shape of above-mentioned projection and described gathering sill is the triangle coordinating each other, trapezoidal or arc.
On the other hand, the utility model also provides a kind of excitation stator core, by the above-mentioned arbitrary described excitation stator lasmination of some layers, laminated and be assembled, the splicing line that wherein described in adjacent layer, segmental punching forms does not overlap mutually, and is describedly with reeded tooth mutually to coincide.
Further, above-mentioned excitation stator core adopts rivet fixing and locking.
Further, when the outer shroud edge of above-mentioned segmental punching is provided with spill groove, some layers of annular punching laminate after assembling, and above-mentioned spill groove forms can partly or entirely weld Feng road.
Every layer of above-mentioned excitation stator lasmination spliced by 6 segmental punchings, when described in each, segmental punching comprises two teeth, and the splicing line that segmental punching forms described in the adjacent layer 30 ° of angles that are staggered.
Compared with prior art, the useful technique effect that the utility model brings is:
(1) the utility model is mainly that traditional annular monoblock excitation stator lasmination is divided into several segmental punchings, and these segmental punchings can be spliced into the stator lasmination of loop configuration.Can greatly reduce the complexity of die sinking like this, greatly reduce die sinking cost, effectively use blank, alleviate the blank waste in production process.Especially when described excitation stator lasmination is comprised of the segmental punching of a plurality of deciles, the excitation stator lasmination of for example 4,5,6,8,10 or 12 identical segmental punching composition ring-types, only need to develop a mold, greatly reduced die cost, stock utilization is the highest.In addition, excitation stator lasmination also can be by the segmental punching independent assortment of a plurality of different structures.For example, by 4 segmental punchings, wherein 3 segmental punchings form semi-circular, and another is as semi-circular, and described 4 segmental punchings can form complete circular excitation stator lasmination.This excitation stator lasmination being comprised of the segmental punching of different structure can require freely to assemble according to the different performance to excitation stator lasmination, can save equally at production link the waste of material and the satisfied accurate demand to assembly technology.When a plurality of segmental punchings are combined into annular excitation stator lasmination, the mode that the projection of adjacent segmental punching and gathering sill cooperatively interact can improve the follow-up rigidity of structure that is assembled into stator core, and ensures Standard size.
(2) design of the spill groove that the outer shroud edge of the segmental punching of the excitation stator lasmination that the utility model provides is provided with is assembled into after excitation stator core at described excitation stator lasmination, this convex groove can form seam road, these seam roads can be floating by all or part of welding, can eliminate the warping phenomenon that punching around unshakable in one's determination occurs in lamination process.When described spill groove is arranged on described segmental punching along on the outer shroud edge of the center line of described tooth time, seam road can be floating to bind the edge of described excitation stator core by the welding by all or part of, eliminates punching around unshakable in one's determination best in the effect of lamination process generation warping phenomenon.
(3) at described excitation stator lasmination, be assembled in the process of described excitation stator core, the splicing line that wherein adjacent layer segmental punching forms does not overlap mutually, adopt the mode being staggeredly stacked to assemble, can effectively improve the integral rigidity of the excitation stator core of segmental punching structure.
(4) at described excitation stator lasmination, be assembled in the process of described excitation stator core, adopt rivet and above-mentioned weld seam in conjunction with fixing mode, can effectively improve the structural strength of the excitation stator core of segmental punching structure.
Accompanying drawing explanation
With reference to accompanying drawing, embodiment of the present utility model will be described as follows:
Fig. 1 is the annular punching schematic diagram of prior art;
Fig. 2 is the segmental punching schematic diagram according to the utility model embodiment;
Fig. 3 is the excitation stator core schematic diagram according to the segmental punching structure of the utility model embodiment;
Fig. 4 laminates schematic flow sheet according to the segmental punching of the utility model embodiment.
Figure number explanation: 1-projection, 2-gathering sill, 3-spill groove, 4 seam roads, 5 teeth, 6-groove, 7-rivet, 8-rivet hole.
Embodiment
In electrical generator fields, excitation stator core is generally to adopt multi-layer annular lamination to be overrided to form.
The more common stator core of temperature rise of excitation stator core is low, so the utility model has overcome traditional prejudice, the structural design that adopts segmental punching to laminate in excitation stator core.Not only do not affect the serviceability of stator core, and stock utilization there is obvious lifting, effectively reduced manufacturing cost.
Concrete, the utility model is mainly that the whole punching in traditional excitation stator core is designed to the structure being spliced by two and above segmental punching, described in each, segmental punching at least comprises a tooth radially extending internally, described in each, the both sides of segmental punching are respectively the first Mosaic face and the second Mosaic face, described the first Mosaic face is provided with projection, described the second Mosaic face is provided with gathering sill, when two and the splicing of above segmental punching, projection on the first Mosaic face of a segmental punching can be contained in the gathering sill on the second Mosaic face of another segmental punching, the adjacent teeth that is spliced into the rear described excitation stator lasmination of annular is different, and one of them tooth is provided with groove.Between described adjacent teeth, form the holding tank of the winding that embeds stator.The design principle of described segmental punching to guarantee when segmental punching when to be spliced into the adjacent teeth of described excitation stator lasmination after annular be the different structural requirement that is reaching excitation stator core according to quantity and the shape of actual conditions appropriate design segmental punching.
Wherein, at the outer shroud edge of described segmental punching, be provided with at least one spill groove.At described excitation stator lasmination, be assembled into after excitation stator core, this spill groove can form seam road, and these seam roads can be floating by all or part of welding, can eliminate the warping phenomenon that punching around unshakable in one's determination occurs in lamination process.When described spill groove is arranged on described segmental punching along on the outer shroud edge of the center line of described tooth time, seam road can be floating to bind the edge of described excitation stator core by all or part of welding, eliminates punching around unshakable in one's determination best in the effect of lamination process generation warping phenomenon.
It is in order to improve the rigidity of structure of the excitation stator core of segmental punching structure that projection and gathering sill are set, and ensures Standard size.Because it is more that segmental punching laminates required punching quantity, cause laminated structure loose, the rigidity of structure that laminates rear stator core is lower, and Standard size is difficult for guaranteeing.The shape of described projection and described gathering sill can be designed as the triangle coordinating each other, trapezoidal or arc.Also have in order further to strengthen the intensity of the annular punching after each segmental punching combination, the outward opening of gathering sill is narrower than the design of the interior collar extension of gathering sill, can be so that the projection matching is better connected in described gathering sill.
It is below the further embodiment explanation of carrying out for the utility model purport.
Embodiment 1
As shown in Figures 2 and 3, the excitation stator lasmination that the present embodiment provides, is spliced by 6 identical segmental punchings.Suppose that excitation stator lasmination has 12 teeth that radially extend internally 5, each segmental punching comprises 2 teeth so.For excitation stator core, because adjacent teeth is different, fluted on one of them tooth, on another tooth, without groove, that is to say, groove occurs in spaced teeth; So two teeth that in the present embodiment, each segmental punching comprises are different, have groove 6 on one of them tooth.
The both sides of each segmental punching are respectively the first Mosaic face and the second Mosaic face, and the first Mosaic face is provided with projection 1, the second Mosaic face and is provided with gathering sill 2; The shape of projection 1 and gathering sill 2 is the triangles (can be also trapezoidal or arc, be illustrated as triangle) that coordinate each other.When segmental punching splices, the projection 1 on the first Mosaic face of a segmental punching can be contained in the gathering sill 2 on the second Mosaic face of another segmental punching.During assembling, by projection and gathering sill, can make 6 segmental punchings be spliced into fast the excitation stator lasmination of loop configuration.
According to actual conditions, excitation stator lasmination can also be spliced by 4,5,8,10 or 12 identical segmental punchings.
The outer shroud edge of the segmental punching of the present embodiment can be provided with two spill grooves 3.Preferably, spill groove 3 is arranged on segmental punching on the outer shroud edge of the center line of tooth 5.As shown in Figure 2.It is in order to form weld seam when laminating into stator core that spill groove is set, and can reinforce like this intensity of stator core.Preferred spill groove is arranged on the outer shroud edge of the center line of tooth, is because can avoid splicing line like this, plays better reinforcement effect.
The segmental punching that a plurality of the present embodiment provide can laminate into excitation stator core, and the splicing line that wherein adjacent layer segmental punching forms does not overlap mutually, and is above-mentionedly with reeded tooth mutually to coincide.That is to say, the segmental punching of odd even layer adopts the stacking assembling of staggered mode, and this can improve the integral rigidity of excitation stator core effectively.The splicing line that the adjacent layer segmental punching of the present embodiment the forms 30 ° of angles that can be staggered.
It should be noted that, in order to guarantee that (class is unnotched tooth to two class teeth of excitation stator core, another kind of is reeded tooth) corresponding one by one, need to be in the lamination process of adjacent layer excitation stator lasmination, the projection of odd-level segmental punching is along clockwise direction, and the projection of even level segmental punching is along counterclockwise; Or the projection of odd-level segmental punching is along counterclockwise, and the projection of even level segmental punching is along clockwise direction.
The die size of the present embodiment only has 1/6 of original size, has effectively reduced the cost of mould.
Further, multilayer excitation stator lasmination laminates the excitation stator core forming after assembling and adopts rivet 7 fixing and lockings.
Each is stacked press-fits and joins rear above-mentioned spill groove and form 12Tiao Feng road, these seam roads is welded fully or partly floating to bind the edge of described stator core, has eliminated punching around unshakable in one's determination at lamination process generation warping phenomenon.
Adopt rivet and weld seam in conjunction with fixing mode, effectively improved the structural strength of the excitation stator core of segmental punching structure.
Fig. 4 shows according to the segmental punching of the utility model embodiment and laminates flow process.This excitation stator core laminates technique applicable to the technical process that laminates of the segmental punching structure stator core of various different modes.
Embodiment 2
Suppose that excitation stator lasmination has 24 teeth that radially extend internally, the excitation stator lasmination that the present embodiment provides is spliced by 8 identical segmental punchings, and each segmental punching comprises 3 teeth so.
Because adjacent teeth is different, fluted on one of them tooth, on another tooth, without groove, groove occurs in spaced teeth.So the present embodiment has two class segmental punchings, on a tooth of a class segmental punching, have groove, on two teeth of another kind of segmental punching, have groove.
The both sides that remain each segmental punching are designated as respectively the first Mosaic face and the second Mosaic face, and the first Mosaic face is provided with projection, and the second Mosaic face is provided with gathering sill; The shape of projection and gathering sill is the triangle coordinating each other, trapezoidal or arc; Preferably each segmental punching is provided with 3 spill grooves along the outer shroud edge of the center line of tooth.During assembling, by projection and gathering sill, can make 8 segmental punchings be spliced into fast the excitation stator lasmination of loop configuration.
It should be noted that, at segmental punching, spell in the process for excitation stator lasmination, two class segmental punchings are alternately to occur.
The excitation stator core that the present embodiment provides, in order effectively to improve its integral rigidity, the segmental punching of odd even layer also adopts the stacking assembling of staggered mode.The two class teeth (class is unnotched tooth, and another kind of is reeded tooth) that need to guarantee excitation stator core during assembling are corresponding one by one.Therefore, if before assembling on same position the segmental punching type of adjacent layer consistent, the splicing line that adjacent layer segmental punching the forms 30 ° of angles (2 teeth are staggered) that are staggered; If the segmental punching Type-Inconsistencies of adjacent layer on same position before assembling, the splicing line that adjacent layer segmental punching the forms 15 ° of angles (1 tooth is staggered) that are staggered.
Multi-layer stator lamination stack press-fit join rear formation excitation stator core at a plurality of rivet fixing and lockings for its circumference.
In addition, after each layer of stator lasmination laminates and assembled, above-mentioned spill groove forms 24Tiao Feng road, these seam roads is welded fully or partly floating to bind the edge of described stator core, can eliminate the warping phenomenon that excitation stator core punching around occurs in lamination process.Part welding can be welded 1 road every 1 Tiao Feng road or 2 Tiao Feng roads.
The die size of the present embodiment only has 1/8 of original size, has effectively reduced the cost of mould.Therefore adopt segmental punching to substitute annular punching, after replacing, material comprehensive utilization ratio is greatly increased, and the manufacturing cost of whole excitation stator core has lifting by a relatively large margin.
Adopt rivet and weld seam in conjunction with fixing mode, effectively improved the structural strength of the excitation stator core of segmental punching structure.
Other technical characterictic and beneficial effect thereof that the present embodiment is not carefully stated, all in the same manner as in Example 1.
It should be noted that, the utility model is also applicable to the assembling that laminates of common stator core.
Embodiment 3
The present embodiment provides a kind of excitation stator lasmination being spliced by a plurality of different segmental punchings.For example a slice excitation stator lasmination is spliced by three different segmental punchings.Wherein the first segmental punching comprises three teeth that radially extend internally, the second segmental punching comprises four teeth that radially extend internally, the 3rd segmental punching comprises five teeth that radially extend internally, described in each, the both sides of segmental punching are respectively the first Mosaic face and the second Mosaic face, described the first Mosaic face is provided with projection, described the second Mosaic face is provided with gathering sill, when described the first segmental punching, the second segmental punching, when the 3rd segmental punching is spliced into annular successively, projection on the first Mosaic face of the first segmental punching can be contained in the gathering sill on the second Mosaic face of the second segmental punching, projection on the first Mosaic face of the second segmental punching can be contained in the gathering sill on the second Mosaic face of the 3rd segmental punching, projection on the first Mosaic face of the 3rd segmental punching can be contained in the gathering sill on the second Mosaic face of the first segmental punching.The adjacent teeth that is spliced into the rear described excitation stator lasmination of annular is different, and one of them tooth is provided with groove.Between described adjacent teeth, form the holding tank of the winding that embeds stator.When the excitation stator lasmination providing when a plurality of the present embodiment laminates as excitation stator core, the mould of the first segmental punching, the second segmental punching and the 3rd segmental punching in batches can be manufactured on a large scale, can realize the lifting to stock utilization equally.When extensive manufacture, the utilance of material and the advantage of manufacturing cost will significantly be embodied.
In the present embodiment, the outer shroud edge of the first segmental punching can be provided with three spill grooves, and the outer shroud edge of the second segmental punching can be provided with four spill grooves, and the outer shroud edge of the 3rd segmental punching can be provided with five spill grooves.Described spill groove can be arranged on segmental punching on the outer shroud edge of the center line of each tooth.
The method that the present embodiment is assembled into excitation stator core is the same with embodiment 1, at this, does not repeat.
According to the principle of the present embodiment, the embodiment of the excitation stator lasmination that other a plurality of different segmental punchings are spliced equally in addition.For example wherein the first segmental punching can comprise two teeth that radially extend internally, and the second segmental punching comprises four teeth that radially extend internally, and the 3rd segmental punching comprises six teeth that radially extend internally.Each different tooth is provided with spill groove at corresponding segmental punching on the outer shroud edge of the center line of each tooth.
The quantity of concrete segmental punching and shape can be according to actual conditions independent assortments.
Although described various execution mode of the present utility model in detail at this, but should be appreciated that the utility model is not limited to the embodiment of describing in detail and illustrating here, in the situation that not departing from essence of the present utility model and scope, can be realized by those skilled in the art other modification and variant.All these modification and variant all fall in scope of the present utility model.And the member that all members described here are equal on can be technical by other replaces.
Claims (10)
1. excitation stator lasmination, it is characterized in that, by two and above segmental punching, be spliced, described in each, segmental punching at least comprises a tooth radially extending internally, described in each, the both sides of segmental punching are respectively the first Mosaic face and the second Mosaic face, described the first Mosaic face is provided with projection, and described the second Mosaic face is provided with gathering sill;
When two and the splicing of above segmental punching, the projection on the first Mosaic face of a segmental punching can be contained in the gathering sill on the second Mosaic face of another segmental punching; The adjacent teeth that is spliced into the rear described excitation stator lasmination of annular is different, and one of them tooth is provided with groove.
2. excitation stator lasmination according to claim 1, is characterized in that, described excitation stator lasmination is spliced by 3,4,5,6,8,10 or 12 described segmental punchings.
3. excitation stator lasmination according to claim 1, is characterized in that, the outer shroud edge of described segmental punching is provided with at least one spill groove.
4. excitation stator lasmination according to claim 3, is characterized in that, described spill groove is arranged on described segmental punching on the outer shroud edge of the center line of described tooth.
5. excitation stator lasmination according to claim 4, is characterized in that, when described excitation stator lasmination is spliced by 6 described segmental punchings, when described in each, segmental punching comprises two teeth, described spill groove is 2.
6. excitation stator lasmination according to claim 1, is characterized in that, the shape of described projection and described gathering sill is the triangle coordinating each other, trapezoidal or arc.
7. excitation stator core, is characterized in that, by the arbitrary described excitation stator lasminations of some layers of claim 1 to 6, is laminated and is assembled, and the splicing line that wherein described in adjacent layer, segmental punching forms does not overlap mutually, and is describedly with reeded tooth mutually to coincide.
8. excitation stator core according to claim 7, is characterized in that, described excitation stator core adopts rivet fixing and locking.
9. excitation stator core according to claim 7, is characterized in that, when the outer shroud edge of described segmental punching is provided with spill groove, some layers of annular punching laminate after assembling, and described spill groove forms can partly or entirely weld Feng road.
10. excitation stator core according to claim 7, is characterized in that, every layer of described excitation stator lasmination spliced by 6 segmental punchings, when described in each, segmental punching comprises two teeth, and the splicing line that segmental punching forms described in the adjacent layer 30 ° of angles that are staggered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320522779.4U CN203456956U (en) | 2013-08-20 | 2013-08-20 | Excitation stator lamination and excitation stator core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320522779.4U CN203456956U (en) | 2013-08-20 | 2013-08-20 | Excitation stator lamination and excitation stator core |
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| Publication Number | Publication Date |
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| CN203456956U true CN203456956U (en) | 2014-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320522779.4U Expired - Lifetime CN203456956U (en) | 2013-08-20 | 2013-08-20 | Excitation stator lamination and excitation stator core |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108599481A (en) * | 2018-05-31 | 2018-09-28 | 广东美芝制冷设备有限公司 | Manufacturing method, stator core and the motor of stator core |
| CN113437814A (en) * | 2021-07-30 | 2021-09-24 | 上海电气风电集团股份有限公司 | Stator and wind driven generator |
| CN116470706A (en) * | 2023-02-10 | 2023-07-21 | 荣成恒鑫动力科技股份有限公司 | Motor stator and manufacturing method of punching sheet thereof |
-
2013
- 2013-08-20 CN CN201320522779.4U patent/CN203456956U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108599481A (en) * | 2018-05-31 | 2018-09-28 | 广东美芝制冷设备有限公司 | Manufacturing method, stator core and the motor of stator core |
| CN108599481B (en) * | 2018-05-31 | 2020-10-30 | 广东威灵汽车部件有限公司 | Stator core manufacturing method, stator core, and motor |
| CN113437814A (en) * | 2021-07-30 | 2021-09-24 | 上海电气风电集团股份有限公司 | Stator and wind driven generator |
| CN116470706A (en) * | 2023-02-10 | 2023-07-21 | 荣成恒鑫动力科技股份有限公司 | Motor stator and manufacturing method of punching sheet thereof |
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