CN106451833A - Stator core structure of inner stator motor and manufacturing method thereof - Google Patents
Stator core structure of inner stator motor and manufacturing method thereof Download PDFInfo
- Publication number
- CN106451833A CN106451833A CN201610747601.8A CN201610747601A CN106451833A CN 106451833 A CN106451833 A CN 106451833A CN 201610747601 A CN201610747601 A CN 201610747601A CN 106451833 A CN106451833 A CN 106451833A
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- Prior art keywords
- punching
- piece
- tooth
- adjacent
- circular
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
- H02K1/148—Sectional cores
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Abstract
The invention relates to a stator core structure of an inner stator motor and a manufacturing method thereof and solves problems of integral structure for the most part, large die size, complex structure and high cost existing in a stator core structure in the prior art. The stator core structure comprises multiple circular punching sheets, wherein a punching unit comprises teeth, tooth yokes and tooth bodies, and slots are among the tooth bodies. The stator core structure is characterized in that the circular punching sheets comprise first punching sheets and second punching sheets, the first punching sheets are arranged at an upper end, a middle portion and a lower end of the core, the tooth yokes among the adjacent punching sheet units of the first punching sheets are disconnected, the teeth among the adjacent punching sheet units of the first punching sheets are connected through connection bridges, the second punching sheets are arranged among the first punching sheets, tooth yokes among the adjacent punching sheet units of the second punching sheets are disconnected, and positioning lamination among the adjacent circular punching sheets is carried out through a positioning member in an axial direction. The stator core structure is advantaged in that optimal arrangement during punching sheet layout is facilitated, and a material strap layout utilization rate can be improved.
Description
Technical field
The present invention relates to stator core construction and the manufacture method thereof of a kind of inner stator motor.
Background technology
Current stator core is structurally mostly overall structure, and die size is big, and structure is complicated, mould input cost
Height, produces and maintenance difficulties is higher.In manufacturing process, punching uses integrally blanking punched processing, simple in construction mostly
But stock utilization is very low, causing material consumption excessive, material cost is higher, although also have employing single-lobe or many lobes split-type to spell
Access node structure, compares with overall punching and can save certain material, but utilization rate is still very low, and motor cost is higher；In making,
Part uses takeup type, notch can be caused big, affect motor performance and copper factor, though material-saving on the premise of sacrificing performance,
And winding process is affected by motor stator punching size, it is impossible to be generally suitable for.
Content of the invention
The technical assignment of the technical problem to be solved in the present invention and proposition is to carry out improving to prior art and improve,
There is provided stator core construction and the manufacture method thereof of a kind of inner stator motor, to promote core stamping stock utilization, to reduce electricity
For the purpose of machine cost.To this end, the present invention takes techniques below scheme.
A kind of stator core construction of inner stator motor, including by the circular punching of multiple punching sheet unit circumferential array
Piece, described punching sheet unit includes the tooth being located at circular punching periphery, the tooth yoke being located at circular punching inner circumferential, connection tooth and tooth yoke
Denticle, between adjacent denticle be groove position, it is characterised in that：Described circular punching includes the first punching and the second punching, institute
Iron core upper end, middle part and position, three, lower end, the tooth yoke between the adjacent punching sheet unit of the first punching are located in the first punching stated
Disconnect, the tooth between the adjacent punching sheet unit of the first punching is connected by connecting bridge, the second described punching laminate be located at above-mentioned
Three between the first punching, the tooth yoke of the adjacent punching sheet unit of the second punching is separated, by positioning between adjacent circular punching
Part laminates in axial direction positioning.Being disconnected by the tooth yoke of the first punching to three positions, iron core upper, middle and lower, between cog is connected,
Form cagelike structure, fracture process is done to the between cog made of the second punching, solve the leakage field problem of motor, and be conducive to punching
Optimizing the arrangement of during piece discharge, can promote the utilization rate to material strip discharge, by arranging keeper on Direction of superposition, and can
Accurately carry out laminating of punching efficiently.
As improving further and supplementing to technique scheme, present invention additionally comprises following additional technical feature.
The quantity that laminates in iron core upper end, middle part and lower end for the first described punching is one or more pieces.Straight according to iron core
Footpath and the difference of height, can reasonably use the first punching laminates quantity, is allowed to meet the electrical characteristic of iron core.
Described keeper is 2 circular positioning convex, is respectively arranged in punching sheet unit radial centre lines.By positioning
Projection is arranged on the center line of punching sheet unit radial direction, makes the balance of structure entirety and electric stability preferable.
The width of described connecting bridge is less than the 1/2 of the width of the connected tooth of connecting bridge.The narrower width of connecting bridge, reduces
Fling the inhibition of piece volume bowlder.
Part or all of tooth between the adjacent punching sheet unit of the second punching disconnects.The tooth disconnecting not only can promote electrical resistance
Can, and nesting optimization when facilitating punching, the utilization ratio of material can be promoted.
The manufacture method of the stator core construction of a kind of inner stator motor, comprises the steps：
1）Shape after flattening according to circular punching carries out the discharge of material strip, and punching sheet unit be arranged in parallel makes the embryo of circular punching
Material is located on vertical bar shaped material strip, and the stock of two circular punchings relatively and shifts to install and makes the tooth yoke of two circular punchings mutually embedding, punching press
After on same vertical bar shaped material strip, form the circular punching of flattenings of two separation；The circular punching flattening is that middle part is provided with convex
The semi-finished product punching rising；Semi-finished product punching is divided into adjacent teeth connects first to fling piece and adjacent teeth part or all off
Two fling piece；
2）Carrying out axial positioning by keeper between adjacent semi-finished product punching, first laminate iron core lower end first flings piece,
Then flinging on piece according to positioning convex positioning, laminating second and fling piece, laminate first again at the middle part of iron core and fling piece,
Then the first of portion fling and laminate second on piece and fling piece in the core, finally laminate first on iron core top and fling piece；
3）Coiling is carried out to the semi-finished product punching after laminating；
4）After coiling completes, carry out volume circle to flinging piece, make the adjacent teeth yoke of same semi-finished product punching offset；
5）After volume circle, first flings the fixing connection of the punching sheet unit of the head end of piece and the punching sheet unit of end.
When first punching and the second punching carry out rectilinear discharge, first flings the adjacent punching that piece or second flings piece
Groove bit width between unit is more than the width of tooth yoke, and first flings piece and second flings the adjacent punching sheet unit of each two on piece
Distance between tooth yoke is more than denticle width.Groove bit width is more than the spacing between the width of tooth yoke and tooth yoke and is more than denticle width
Degree, it is simple to realize tooth and denticle insertion groove position, Optimal Layout during discharge.
It is inserted in another groove position flinging piece by the tooth and tooth yoke flinging piece on material strip, it is achieved 2
Fling the interspersed arrangement of symmetrical dislocation of piece.Symmetrical dislocation interts the marker method of arrangement is capable of the profit of almost lifting material strip at double
By rate, greatly reduce material cost.
The first described two ends flinging piece are provided with corresponding tongue and groove structure, after described first flings piece volume circle, logical
Cross tongue and groove structure to connect.Tongue and groove structure stable connection, will not occur lateral displacement.
Described tongue and groove structure includes dovetail groove, T-slot, straight trough.Dovetail groove, T-slot, straight trough are the more commonly used recessed
Tongue structure, manufacturing process is ripe.
Beneficial effect：Effective from structure ensure motor performance, promote the utilization rate to stamping material for the punching, improve around
Linear velocity, reduces cost of labor.
Brief description
Fig. 1 is the circular lamination structure schematic diagram of the present invention.
Fig. 2 is the A portion enlarged diagram of Fig. 1.
Fig. 3 is punching sheet unit discharge schematic diagram of the present invention.
Fig. 4 is that the present invention flings piece discharge schematic diagram.
In figure：1-punching sheet unit；2-tongue and groove structure；3-groove position；4-connecting bridge；5-first flings piece；6-material strip；7-
Second flings piece；101-tooth；102-denticle；103-tooth yoke；104-positioning convex.
Detailed description of the invention
Below in conjunction with Figure of description, technical scheme is described in further detail.
As shown in Figure 1, 2, the stator core construction of a kind of inner stator motor, including the circular punching being made up of punching sheet unit 1
Piece, punching sheet unit 1 includes being located at the tooth of circular punching periphery and the 101st, is located at the tooth yoke of circular punching inner circumferential and the 103rd, connects tooth 101 and
The denticle 102 of tooth yoke 103, is groove position 3 between adjacent denticle 102, and circular punching includes the first punching and the second punching, the first punching
Piece is located at iron core upper end, middle part and position, three, lower end, the tooth yoke between the first punching and the adjacent punching sheet unit 1 of the second punching
103 disconnect, and the tooth 101 between the adjacent punching sheet unit 1 of the first punching is connected by connecting bridge 4, and the second punching laminates to be located at
At three stating between the first punching, the tooth 101 of the adjacent punching sheet unit 1 of the second punching is separated, between the first punching, first punching
Axially all laminated by keeper positioning between piece and the second punching, between the second punching.
In order to adapt to core structure intensity and the electrical characteristic of different-diameter and height, the first punching iron core upper end, in
The quantity that laminates of portion and lower end is multi-disc.According to the difference of iron core diameter and height, can reasonably use the folded of the first punching
Pressure quantity, is allowed to meet the electrical characteristic of iron core.
Positioning when laminating for convenience, keeper is 2 circular positioning convex 104, is respectively arranged on punching sheet unit 1 radially
Chi E 103 center of center line and tooth 101 are connected with denticle 102 center at position.By positioning convex 104 is arranged at punching
On the center line of unit 1 radial direction, make the balance of structure entirety and electric stability preferable.By positioning convex 104 is arranged
On the center line of punching sheet unit 1 radial direction, make the balance of structure entirety and electric stability preferable.
As in figure 2 it is shown, fling the volume circle of piece 5 for convenience, the side of the width of connecting bridge 4 is connecting bridge 4 connection tooth 101
The 1/3 of end width.The narrower width of connecting bridge 4, reduces the inhibition flinging piece volume bowlder.
In order to promote electric property and be easy to Optimal Layout, all disconnect between the tooth 101 of the second adjacent punching sheet unit 1 of punching.
The tooth 101 disconnecting not only can promote electric property, and nesting optimization when facilitating punching, the utilization effect of material can be promoted
Rate.
Manufacture method process is as follows：
1 ）As shown in Figure 3,4, the discharge design of material strip 6 is carried out to the first punching and the second punching, according to the feature of the first punching
Being designed to rectilinear first and flinging piece 5, be also arranged in a straight line shape to the punching sheet unit 1 of the second punching, forms second and flings piece
7, then fling piece 5 and second to first and fling piece 7 and carry out punching press off-chip；
2）Positioned by positioning convex 104, first laminate the first of iron core lower end and fling piece 5, then flinging on piece according to calmly
Protruding 104 positioning in position, laminate second and fling piece 7, laminate first at the middle part of iron core again and fling piece 5, then portion in the core
First flings and laminates second on piece 5 and fling piece 7, finally laminates first on iron core top and flings piece 5；
3）Coiling is carried out to the punching after laminating；
4）After coiling completes, carry out volume circle to flinging piece；
5）After volume circle completes, by first, the connected position of piece volume 5 circle is flung to the first punching and is welded and fixed.After volume circle the
One punching is as shown in Figure 1.
In this example, after the first punching and the second punching carry out rectilinear discharge design, first to fling piece 5 or the second straight
Groove position 3 width between the adjacent punching sheet unit 1 of punching 7 is more than the width of tooth yoke 103, and first flings piece 5 or the second flings piece 7
Spacing between the tooth yoke 103 of the adjacent punching sheet unit of upper each two 1 is more than denticle 102 width, it is simple in the design of material strip 6 discharge
The tooth 101 flinging piece one and tooth yoke 103 are inserted in another groove position 3 flinging piece, it is achieved 2 fling the symmetrical wrong of piece
Position intert arrangement, can almost at double lifting material strip 6 utilization rate, greatly reduce material cost.
In this example, the first two ends flinging piece 5 are provided with the tongue and groove structure 2 of corresponding dove tail shape.Structure connects
Stable, lateral displacement will not occur.
The stator core construction of a kind of inner stator motor shown in figure 1 above-4 and manufacture method thereof are the concrete of the present invention
Embodiment, has embodied substantive distinguishing features of the present invention and progress, can be according to actual use needs, in the enlightenment of the present invention
Under, carry out the equivalent modifications of the aspect such as shape, structure to it, all the row of protection domain at this programme.
Claims (10)
1. a stator core construction for inner stator motor, including by multiple punching sheet units（1）The circular punching of circumferential array
Piece, described punching sheet unit（1）Including be located at the tooth of circular punching periphery（101）, be located at the tooth yoke of circular punching inner circumferential
（103）, connect tooth（101）With tooth yoke（103）Denticle（102）, adjacent denticle（102）Between be groove position（3）, its feature exists
In：Described circular punching includes the first punching and the second punching, and iron core upper end, middle part and lower end are located in the first described punching
Three positions, the adjacent punching sheet unit of the first punching（1）Between tooth yoke（103）Disconnect, the adjacent punching sheet unit of the first punching
（1）Between tooth（101）Pass through connecting bridge（4）Connect, the second described punching laminate be located at above-mentioned three first punching it
Between, the adjacent punching sheet unit of the second punching（1）Tooth yoke（103）Separated, by keeper axially between adjacent circular punching
Direction positioning laminates.
2. the stator core construction of a kind of inner stator motor according to claim 1, it is characterised in that：The first described punching
The quantity that laminates in iron core upper end, middle part and lower end for the piece is one or more pieces.
3. the stator core construction of a kind of inner stator motor according to claim 1, it is characterised in that：Described keeper
It is 2 circular positioning convex（104）, it is respectively arranged on punching sheet unit（1）In radial centre lines.
4. the stator core construction of a kind of inner stator motor according to claim 1, it is characterised in that：Described connecting bridge
（4）Width be less than connecting bridge（4）Connected tooth（101）Width 1/2.
5. the stator core construction of a kind of inner stator motor according to claim 1, it is characterised in that：The phase of the second punching
Adjacent punching sheet unit（1）Between part or all of tooth（101）Disconnect.
6. the manufacture method of the stator core construction of a kind of inner stator motor described in claim 1 for the employing, it is characterised in that bag
Include following steps：
1) shape after flattening according to circular punching carries out material strip（6）Discharge, punching sheet unit（1）It is arranged in parallel and make circular punching
Stock be located on vertical bar shaped material strip, the stock of two circular punchings relatively and shifts to install the tooth yoke making two circular punchings（103）
Xiang Qian, forms the circular punching of the flattening of two separation on same vertical bar shaped material strip after punching press；The circular punching flattening is middle part
It is provided with the semi-finished product punching of positioning convex；Semi-finished product punching is divided into adjacent teeth（101）First connecting flings piece（5）And adjacent teeth
（101）Second partly or entirely disconnecting flings piece（7）；
2) carrying out axial positioning by keeper between adjacent semi-finished product punching, first laminate iron core lower end first flings piece
（5）, then flinging on piece according to positioning convex（104）Positioning, laminates second and flings piece（7）, fold again at the middle part of iron core
Pressure first flings piece（5）, then the first of portion fling piece in the core（5）On laminate second and fling piece（7）, finally at iron core
Top laminates first and flings piece（5）；
3) coiling is carried out to the semi-finished product punching after laminating；
4), after coiling completes, carry out volume circle to flinging piece, make the adjacent teeth yoke of same semi-finished product punching（103）Offset；
5), after volume circle, first flings piece（5）The punching sheet unit of head end（1）Punching sheet unit with end（1）Fixing connection.
7. the stator core construction dacron manufacture method of a kind of inner stator motor according to claim 6, its feature exists
In：When first punching and the second punching carry out rectilinear discharge, first flings piece（5）Or second fling piece（7）Adjacent punching
Blade unit（1）Between groove position（3）Width is more than tooth yoke（103）Width, first flings piece（5）Fling piece with second（7）On
The adjacent punching sheet unit of each two（1）Tooth yoke（103）Between distance be more than denticle（102）Width.
8. the manufacture method of the stator core construction of a kind of inner stator motor according to claim 7, it is characterised in that：Logical
Cross at material strip（6）On fling piece one tooth（101）With tooth yoke（103）It is inserted into another groove position flinging piece（3）In, real
Existing 2 interspersed arrangements of symmetrical dislocation flinging piece.
9. the manufacture method of the stator core construction of a kind of inner stator motor according to claim 6, it is characterised in that：Institute
First stating flings piece（5）Two ends be provided with corresponding tongue and groove structure（2）, described first flings piece（5）After volume circle, pass through
Tongue and groove structure（2）Connect.
10. the manufacture method of the stator core of a kind of inner stator motor according to claim 9, it is characterised in that：Described
Tongue and groove structure（2）Including dovetail groove, T-slot, straight trough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610747601.8A CN106451833A (en) | 2016-08-26 | 2016-08-26 | Stator core structure of inner stator motor and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610747601.8A CN106451833A (en) | 2016-08-26 | 2016-08-26 | Stator core structure of inner stator motor and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106451833A true CN106451833A (en) | 2017-02-22 |
Family
ID=58182827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610747601.8A Pending CN106451833A (en) | 2016-08-26 | 2016-08-26 | Stator core structure of inner stator motor and manufacturing method thereof |
Country Status (1)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107017716A (en) * | 2017-05-16 | 2017-08-04 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor punching, rotor, motor and rotor punching processing method |
| CN107707046A (en) * | 2017-11-22 | 2018-02-16 | 杭州三相科技有限公司 | High-speed electric expreess locomotive copper casting rotor iron core and its processing method |
| CN113765246A (en) * | 2021-09-26 | 2021-12-07 | 浙江实日机电科技有限公司 | Production process of iron core punching strip |
| CN117000877A (en) * | 2023-09-01 | 2023-11-07 | 瑞鹄汽车模具股份有限公司 | Motor stator stamping process layout method |
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| CN205911842U (en) * | 2016-08-26 | 2017-01-25 | 卧龙电气集团股份有限公司 | Stator core structure of internal stator motor |
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| CN201146408Y (en) * | 2008-01-22 | 2008-11-05 | 宁波北斗科技有限公司 | Array type motor iron core |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107017716A (en) * | 2017-05-16 | 2017-08-04 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor punching, rotor, motor and rotor punching processing method |
| CN107017716B (en) * | 2017-05-16 | 2023-11-14 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor punching sheet, rotor, motor and rotor punching sheet processing method |
| CN107707046A (en) * | 2017-11-22 | 2018-02-16 | 杭州三相科技有限公司 | High-speed electric expreess locomotive copper casting rotor iron core and its processing method |
| CN107707046B (en) * | 2017-11-22 | 2024-03-29 | 杭州三相科技有限公司 | High-speed motor cast copper rotor core and processing method thereof |
| CN113765246A (en) * | 2021-09-26 | 2021-12-07 | 浙江实日机电科技有限公司 | Production process of iron core punching strip |
| CN113765246B (en) * | 2021-09-26 | 2022-08-26 | 浙江实日机电科技有限公司 | Production process of iron core punching strip |
| CN117000877A (en) * | 2023-09-01 | 2023-11-07 | 瑞鹄汽车模具股份有限公司 | Motor stator stamping process layout method |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 312300 No. 1801 Renmin West Road, Shaoxing, Zhejiang, Shangyu Applicant after: Wolong Electric Drive Group Co., Ltd. Applicant after: WOLONG ELECTRIC ZHANGQIU HAIER MOTOR CO., LTD. Address before: 312300 No. 1801 Renmin West Road, Shaoxing, Zhejiang, Shangyu Applicant before: Wolong Electric Group Co., Ltd. Applicant before: WOLONG ELECTRIC ZHANGQIU HAIER MOTOR CO., LTD. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170222 |