CN114629262A - Stator silicon steel sheet structure and stator slot-twisting iron core - Google Patents
Stator silicon steel sheet structure and stator slot-twisting iron core Download PDFInfo
- Publication number
- CN114629262A CN114629262A CN202210251581.0A CN202210251581A CN114629262A CN 114629262 A CN114629262 A CN 114629262A CN 202210251581 A CN202210251581 A CN 202210251581A CN 114629262 A CN114629262 A CN 114629262A
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- Prior art keywords
- stator
- silicon steel
- steel sheet
- arc
- sheet structure
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000976 Electrical steel Inorganic materials 0.000 title claims abstract description 49
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 238000004080 punching Methods 0.000 claims abstract description 31
- 238000003475 lamination Methods 0.000 claims description 17
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 239000000463 material Substances 0.000 abstract description 13
- 239000002356 single layer Substances 0.000 description 6
- 206010063659 Aversion Diseases 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
Images
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
- H02K1/16—Stator cores with slots for windings
-
- 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
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a stator silicon steel sheet structure and a stator twisted slot iron core, wherein the stator silicon steel sheet structure comprises a plurality of stator punching sheets and a buckling belt inclined along a preset angle, the stator punching sheets are of an arc-shaped structure, the stator punching sheets are provided with outer edges and inner edges, the outer edges are far away from the center of the arc-shaped structure, the inner edges are close to the center of the arc-shaped structure, the stator silicon steel sheet structure is provided with a wire groove part and a buckling belt part, the wire groove part is formed on the inner edges, notches are formed on the outer edges, the buckling belt part is provided with a groove structure inclined along the preset angle, and the buckling belt is accommodated in the groove structure. The invention effectively solves the technical problems of high processing cost and low material utilization rate of the stator twisted slot iron core.
Description
Technical Field
The invention relates to the technical field of stator core processing, in particular to a stator silicon steel sheet structure and a stator twisted slot core.
Background
The stator winding of the alternating current motor needs to be embedded in a wire slot, and after the stator is slotted, the magnetic resistance of the whole air gap circumference range is not uniform (the magnetic resistance of a slot part is large, the magnetic resistance of a tooth part is small) due to the non-uniform air gap, so that the back electromotive force contains tooth slot harmonic waves. After the stator slot twisting iron core forms the skewed slot, the formed electromagnetic torque and the induced electromotive force potential energy effectively weaken the additional torque caused by the tooth harmonic magnetic field, and reduce the electromagnetic vibration and the noise. For distributed windings, the stator is typically skewed by a predetermined angle, such as by one pitch; whether the stator core is in place or not directly influences the size of the tooth slot harmonic wave in the counter potential, and further influences the size torque. In order to ensure the precision of the stator chute, a layer of complete silicon steel sheet is generally processed by adopting a whole sheet material in the industry at present, so that the material waste is caused, and after the processing is finished, the slot needs to be repeatedly repaired for two times and three times due to poor slot type consistency, the workload is large, the iron core quality is poor, and the processing period is long.
Disclosure of Invention
The embodiment of the invention provides a stator silicon steel sheet structure and a stator twisted slot iron core, and effectively solves the technical problems of high processing cost and low material utilization rate of the stator twisted slot iron core.
In order to solve the technical problem, the embodiment of the invention discloses a stator silicon steel sheet structure which comprises a plurality of stator punching sheets and a buckling belt, wherein the buckling belt is inclined along a preset angle, each stator punching sheet is of an arc-shaped structure, each stator punching sheet is provided with an outer edge and an inner edge, the outer edge is far away from the center of the arc-shaped structure, the inner edge is close to the center of the arc-shaped structure, the stator silicon steel sheet structure is provided with a wire groove part and a buckling belt part, the inner edge forms the wire groove part, the outer edge is provided with a notch, the notch forms the buckling belt part, the buckling belt part is provided with a groove structure inclined along the preset angle, and the buckling belt is accommodated in the groove structure.
Further, two ends of the buckle belt are closed.
Furthermore, the surface of the arc-shaped structure is provided with a protruding portion, one side of the protruding portion forms a protruding surface, the other side of the protruding portion forms a recessed surface, and the stator punching sheets are connected through the protruding surface and the recessed surface.
Further, the stator punching sheet is provided with a first lateral edge and a second lateral edge, the first lateral edge is provided with a splicing convex portion, the second lateral edge is provided with a splicing notch, and the stator punching sheet is multiple in number and connected with the splicing notch through the splicing convex portion.
Further, the surface of the arc-shaped structure is provided with a through hole.
The embodiment of the invention also discloses a stator twisted slot iron core which comprises the stator silicon steel sheet structure.
Further, the stator slot twisting iron core further comprises an aluminum shell, and the aluminum shell is in interference fit with the stator silicon steel sheet structure.
The implementation of the invention has the following beneficial effects:
the stator silicon steel sheet structure comprises a plurality of stator punching sheets and a buckle belt which is inclined along a preset angle, wherein the stator punching sheets are of an arc-shaped structure, the stator punching sheets are provided with outer edges and inner edges, the outer edges are far away from the center of the arc-shaped structure, the inner edges are close to the center of the arc-shaped structure, the stator silicon steel sheet structure is provided with a wire groove part and a buckle belt part, the wire groove part is formed on the inner edges, notches are formed on the outer edges, the buckle belt part is provided with a groove structure which is inclined along the preset angle, the buckle belt is accommodated in the groove structure, the stator punching sheets are of the arc-shaped structure, the material utilization rate is improved by splicing the arc-shaped structure, the buckle belt can effectively limit the stator punching sheets, and the buckle belt is inclined along the preset angle and is matched with the buckle belt part, can be right through the restriction the position realization of buckle band portion the aversion reformation of stator punching for every stator punching all can produce the same aversion of predetermineeing the angle, and then make stator silicon steel sheet structure can form the wire casing of predetermineeing the angle, has promoted material utilization and has reduced manufacturing cost.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts.
Fig. 1 is a schematic top view of a stator silicon steel sheet structure according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a stator punching sheet according to an embodiment of the present invention.
FIG. 3 is a schematic structural view of a buckle strap according to an embodiment of the present invention.
Fig. 4 is an enlarged schematic view of fig. 1 at a.
Fig. 5 is an enlarged schematic view of fig. 1 at B.
Wherein the reference numerals in the figures correspond to: 100-stator silicon steel sheet structure, 10-stator punching sheet, 11-inner edge, 12-outer edge, 13-bulge, 14-first side edge, 141-splicing bulge, 15-second side edge, 151-splicing gap, 16-through hole, 20-buckle belt part, 30-line groove part and 40-buckle belt.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defined as "first", "second" may explicitly or implicitly include one or more of those features, in the description of the invention "plurality" means two or more unless explicitly defined otherwise.
Fig. 1 is a schematic top view of a stator silicon steel sheet structure according to an embodiment of the present invention, where as shown in fig. 1, the stator silicon steel sheet structure 100 includes a plurality of stator laminations 10 and a fastening strip 40 having a slope along a predetermined angle, fig. 2 is a schematic structural view of a stator lamination according to an embodiment of the present invention, as shown in fig. 2, the stator laminations 10 are arc-shaped structures, the stator laminations 10 have an outer edge 12 and an inner edge 11, the outer edge 12 is far from a center of the arc-shaped structure, the inner edge 11 is close to the center of the arc-shaped structure, the stator silicon steel sheet structure 100 has a wire trough portion 30 and a fastening strip portion 20, fig. 4 is an enlarged schematic structural view of fig. 1 at a position a, the inner edge 11 forms the wire trough portion 30, the outer edge 12 has a notch, the notch forms the fastening strip portion 20, the fastening strip portion 20 has a groove structure having a slope along the predetermined angle, the strap 40 is received in the recess structure. The plurality of stator laminations 10 can be spliced through an arc-shaped structure to obtain a single-layer silicon steel sheet, specifically, the arc-shaped structure can be set to have a corresponding central angle of 60 degrees, 90 degrees or 120 degrees, correspondingly, the 6 stator laminations 10, 4 stator laminations 10 or 3 stator laminations 10 are spliced to obtain a single-layer silicon steel sheet, so that the material utilization rate is improved, after the single-layer silicon steel sheet is obtained, the single-layer silicon steel sheet is assembled with the fastening belt 40, the notches of the stator laminations 10 are all matched with the fastening belt 40, as shown in fig. 3, the fastening belt 40 can effectively limit the stator laminations 10, and can be matched with the fastening belt portion 20 to realize displacement reformation of the stator laminations 10 by limiting the position of the fastening belt portion 20, each stator punching sheet 10 can generate the same displacement with a preset angle, so that the stator silicon steel sheet structure 100 can form a wire slot with a preset angle, the material utilization rate is improved, and the production cost is reduced.
In one embodiment of the present invention, the strap 40 is closed at both ends. The fastening strip 40 is closed on the surface of the stator silicon steel sheet structure 100 to reinforce the stator silicon steel sheet structure 100 obtained by stacking a plurality of single-layer silicon steel sheets.
In an embodiment of the present invention, with reference to fig. 1 and 2, a protrusion 13 is disposed on a surface of the arc-shaped structure, a protruding surface is formed on one side of the protrusion 13, a recessed surface is formed on the other side of the protrusion 13, and the plurality of stator laminations 10 are connected to each other through the protruding surface and the recessed surface, so that sliding displacement between single-layer silicon steel sheets is prevented, the silicon steel sheets are better limited, and strength of the stator silicon steel sheet structure 100 is improved.
In an embodiment of the present invention, with continuing reference to fig. 1 and fig. 2, the stator lamination 10 further includes a first lateral edge 14 and a second lateral edge 15, the first lateral edge 14 is provided with a splicing convex portion 141, the second lateral edge 15 is provided with a splicing gap 151, fig. 5 is an enlarged schematic structural diagram of fig. 1 at B, and a plurality of stator laminations 10 are connected by the splicing convex portion 141 and the splicing gap 151, such an arrangement facilitates cutting the stator lamination 10 with a smaller-sized material, avoids a larger-area waste material after cutting the material, improves a utilization rate of the material, and improves a connection strength between the stator laminations 10 due to the arrangement of the splicing convex portion 141 and the splicing gap 151.
In an embodiment of the present invention, with continued reference to fig. 1 and 2, the surface of the arcuate structure is provided with through holes 16. Because the individual layer silicon steel sheet with detain the area 40 and cooperate the back, detain area 40 along predetermineeing angle slope, from this the individual layer silicon steel sheet according to with detain the cooperation of area 40 and carry out the pile back, obtain stator silicon steel sheet structure 100 also follows predetermine the angle and incline, through-hole 16 can be alleviated the surface stress that the individual layer silicon steel sheet produced after according to predetermineeing angle slope.
The embodiment of the invention also discloses a stator twisted slot iron core, which comprises the stator silicon steel sheet structure 100. The stator twisted slot iron core comprises at least one stator silicon steel sheet structure 100, and the advantages of the stator twisted slot iron core are as described above and are not described herein again.
In an embodiment of the invention, the stator twisted slot iron core further comprises an aluminum shell, the aluminum shell is in interference fit with the stator silicon steel sheet structure 100, the aluminum shell is light in weight, cast iron is replaced as a motor shell, and the overall weight is reduced.
The implementation of the invention has the following beneficial effects:
the stator silicon steel sheet structure 100 comprises a plurality of stator punching sheets 10 and a buckling belt 40 inclined along a preset angle, wherein the stator punching sheets 10 are of an arc-shaped structure, each stator punching sheet 10 is provided with an outer edge 12 and an inner edge 11, the outer edge 12 is far away from the center of the arc-shaped structure, the inner edge 11 is close to the center of the arc-shaped structure, each stator silicon steel sheet structure 100 is provided with a wire groove part 30 and a buckling belt part 20, the inner edge 11 forms the wire groove part 30, the outer edge 12 is provided with a notch, the notch forms the buckling belt part 20, the buckling belt part 20 is provided with a groove structure inclined along the preset angle, the buckling belt 40 is accommodated in the groove structure, the stator punching sheets 10 are of the arc-shaped structure and are spliced through the arc-shaped structure, the material utilization rate is improved, the buckling belt 40 can effectively limit the stator punching sheets 10, and the buckling belt 40 is inclined along the preset angle, and through cooperating with the buckle strip part 20, can realize through restricting the position of buckle strip part 20 to the aversion reformation of stator punching 10 for every stator punching 10 all can produce the aversion of the same angle of predetermineeing, and then makes stator silicon steel sheet structure 100 can form the wire casing of the angle of predetermineeing, has promoted material utilization and has reduced manufacturing cost.
While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (7)
1. The stator silicon steel sheet structure is characterized by comprising a plurality of stator punching sheets and a buckling belt which inclines along a preset angle, wherein each stator punching sheet is of an arc-shaped structure, each stator punching sheet is provided with an outer edge and an inner edge, each outer edge is far away from the center of the arc-shaped structure, each inner edge is close to the center of the arc-shaped structure, each stator silicon steel sheet structure is provided with a wire groove portion and a buckling belt portion, each inner edge forms the wire groove portion, each outer edge is provided with a notch, each notch forms the buckling belt portion, each buckling belt portion is provided with a groove structure which inclines along the preset angle, and each buckling belt is contained in the groove structure.
2. The stator silicon steel sheet structure according to claim 1, wherein both ends of the fastening band are closed.
3. The stator silicon steel sheet structure according to claim 1, wherein a protrusion is provided on a surface of the arc-shaped structure, a protruding surface is formed on one side of the protrusion, a recessed surface is formed on the other side of the protrusion, and the plurality of stator laminations are connected to each other through the protruding surface and the recessed surface.
4. The stator silicon steel sheet structure according to claim 1, wherein the stator punching sheet further comprises a first side edge and a second side edge, the first side edge is provided with a splicing convex portion, the second side edge is provided with a splicing gap, and the plurality of stator punching sheets are connected through the splicing convex portion and the splicing gap.
5. The stator silicon steel sheet structure according to claim 1, wherein the arc-shaped structure is provided with through holes on a surface thereof.
6. The stator twisted slot iron core is characterized by comprising the stator silicon steel sheet structure.
7. The stator twisted slot core of claim 6, further comprising an aluminum shell in interference fit with the stator silicon steel sheet structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210251581.0A CN114629262A (en) | 2022-03-15 | 2022-03-15 | Stator silicon steel sheet structure and stator slot-twisting iron core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210251581.0A CN114629262A (en) | 2022-03-15 | 2022-03-15 | Stator silicon steel sheet structure and stator slot-twisting iron core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114629262A true CN114629262A (en) | 2022-06-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210251581.0A Pending CN114629262A (en) | 2022-03-15 | 2022-03-15 | Stator silicon steel sheet structure and stator slot-twisting iron core |
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| Country | Link |
|---|---|
| CN (1) | CN114629262A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114785008A (en) * | 2022-06-23 | 2022-07-22 | 宁波震裕科技股份有限公司 | Stator core with skewed slots and processing method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202034835U (en) * | 2011-05-13 | 2011-11-09 | 浙江众邦机电科技有限公司 | Sectional motor stator iron core used on sewing machine |
| CN205544656U (en) * | 2016-04-05 | 2016-08-31 | 浙江东音泵业股份有限公司 | Buckling piece for stator |
| CN205657519U (en) * | 2016-05-10 | 2016-10-19 | 浙江星欧电机科技有限公司 | Permanent magnet motor |
| CN207766040U (en) * | 2017-12-25 | 2018-08-24 | 安徽明腾永磁机电设备有限公司 | A kind of generator |
| CN111181260A (en) * | 2020-02-27 | 2020-05-19 | 菲仕绿能科技(宁波)有限公司 | Permanent magnet synchronous motor stator core split punching sheet, stator core and assembling method |
| CN111200321A (en) * | 2018-11-19 | 2020-05-26 | 东芝三菱电机产业系统株式会社 | Rotating electric machine, stator, and method for assembling stator |
| CN213547201U (en) * | 2020-12-02 | 2021-06-25 | 浙江实日机电科技有限公司 | High-precision motor stator punching sheet |
-
2022
- 2022-03-15 CN CN202210251581.0A patent/CN114629262A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202034835U (en) * | 2011-05-13 | 2011-11-09 | 浙江众邦机电科技有限公司 | Sectional motor stator iron core used on sewing machine |
| CN205544656U (en) * | 2016-04-05 | 2016-08-31 | 浙江东音泵业股份有限公司 | Buckling piece for stator |
| CN205657519U (en) * | 2016-05-10 | 2016-10-19 | 浙江星欧电机科技有限公司 | Permanent magnet motor |
| CN207766040U (en) * | 2017-12-25 | 2018-08-24 | 安徽明腾永磁机电设备有限公司 | A kind of generator |
| CN111200321A (en) * | 2018-11-19 | 2020-05-26 | 东芝三菱电机产业系统株式会社 | Rotating electric machine, stator, and method for assembling stator |
| CN111181260A (en) * | 2020-02-27 | 2020-05-19 | 菲仕绿能科技(宁波)有限公司 | Permanent magnet synchronous motor stator core split punching sheet, stator core and assembling method |
| CN213547201U (en) * | 2020-12-02 | 2021-06-25 | 浙江实日机电科技有限公司 | High-precision motor stator punching sheet |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114785008A (en) * | 2022-06-23 | 2022-07-22 | 宁波震裕科技股份有限公司 | Stator core with skewed slots and processing method |
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Application publication date: 20220614 |