CN101958612B - Stator core and manufacture method thereof - Google Patents
Stator core and manufacture method thereof Download PDFInfo
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- CN101958612B CN101958612B CN2009101088038A CN200910108803A CN101958612B CN 101958612 B CN101958612 B CN 101958612B CN 2009101088038 A CN2009101088038 A CN 2009101088038A CN 200910108803 A CN200910108803 A CN 200910108803A CN 101958612 B CN101958612 B CN 101958612B
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- stator core
- hole
- tooth
- iron core
- unit iron
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Abstract
The invention relates to a stator core, in particular to an expansion-type core. A plurality of peripherally distributed unit cores (1) are assembled into a ring. Each unit core (1) is provided with a yoke part (11), tooth parts (12) radically and radially extending from the yoke part (11) and tooth end parts (13) arranged at the top ends of the tooth parts (12), the tooth end part of the stator core is provided with at least one opening part (14) which is arranged between adjacent two tooth end parts, and the yoke part of the stator core is provided with at least one pore (15) which is arranged between adjacent two tooth parts. The invention also provides a manufacture method of the stator core. Since the stator core is provided with at least one opening part and at least one pore the stator core can be easily inserted in a plastic-filmed die after a unit core wound with a coil is assembled, and the stator cores are tightly combined by pressing a magnetic pin shaft in the pore to improve the electromagnetic characteristics of the joint.
Description
Technical field
The present invention relates to a kind of stator core and manufacturing approach thereof.This stator core especially can be used for office equipment (for example machine such as OA, FA).
Background technology
Traditionally, the plastic packaging stator of plastic packaging motor has been rolled up after the coil by the punching press iron core, puts into plastic package die moulded section and forms.For the expansion stator core, its deployable shape that is arranged in a straight line makes that the tooth portion of each unit iron core is what open wide, like this, can easily coil be installed in the tooth portion during rule operation, can enhance productivity.Under the occasion of using expansion iron core stator, the stator core of linearity welds the part of tooth ends or yoke portion through behind the spiral, forming the spiral stator core of annular, and then puts into plastic package die and carries out moulded section.Certainly, also exist and do not weld and directly annular stator core is put into the situation that plastic package die carries out pressing mold, but in this case in a circumferential direction the position be difficult to fix, cause the work manhours of reality too high, can't produce.In addition, in the prior art, have such problem, it is complicated that stator core directly inserts behind the plastic package die mould structure that directly moulded section meeting causes, thereby increase the expense of mould.
Summary of the invention
The objective of the invention is to: to above-mentioned defective of the prior art; A kind of stator core and manufacturing approach thereof are provided, make and easily stator core is inserted in the plastic package die, and stator core is closely combined; Thereby the minimizing cost provides cheap plastic packaging motor stator.
The present invention solves the problems of the technologies described above the technical scheme that is adopted and is: construct a kind of stator core; A plurality of unit iron core group by circumferential distribution is dressed up ring-type; Each unit iron core all has yoke portion, from said yoke portion radially the tooth portion of radial extension and the tooth ends that is positioned at said tooth portion top; It is characterized in that said stator core has at least one peristome, said peristome is located between the adjacent said tooth ends.
As optimal technical scheme of the present invention, said stator core also has at least one hole, and said hole is located between the adjacent said yoke portion.
As optimal technical scheme of the present invention, the embedded magnetic bearing pin that is complementary with said hole that is inserted with of said hole.
As optimal technical scheme of the present invention, radially the position is corresponding one by one with said hole for said peristome.
As optimal technical scheme of the present invention, said unit iron core has and is used for the concavo-convex fitting portion that cooperates with the adjacent cells iron core.
As optimal technical scheme of the present invention, said concavo-convex fitting portion comprises: be located at the first recessed fitting portion and/or the first protruding portion of closing in the said yoke portion.
The present invention also provides a kind of motor with above-mentioned stator core.
In addition; The present invention also provides a kind of method of making stator core; Said stator core is dressed up ring-type by a plurality of unit iron core group of circumferential distribution; Each unit iron core all has yoke portion, from said yoke portion radially the tooth portion of radial extension and the tooth ends that is positioned at said tooth portion top, it is characterized in that, may further comprise the steps:
Under the deployed condition of said stator core, coil is installed in the said tooth portion of said unit iron core;
The said stator core that is assembled into ring-type is inserted in the plastic package die;
The magnetic bearing pin is pressed in the said hole;
In said plastic package die, said stator core is carried out moulded section.
As the optimal technical scheme of the method for making stator core, radially the position is corresponding one by one with said hole for said peristome.
Embodiment of the present invention has following beneficial effect: because said stator core has at least one peristome and at least one hole, peristome and hole are located between adjacent tooth ends and the yoke portion corresponding with this tooth ends.So be wound with the unit iron core of coil in assembling after, can easily stator core be inserted plastic package die, and stator core closely combined, and improve the electromagnetic property of junction through the magnetic bearing pin is pressed into.Therefore, the method for manufacturing stator core of the present invention is simple to operate, can enhance productivity.
Description of drawings
To combine accompanying drawing and specific embodiment to describe the present invention below, in the accompanying drawing:
Fig. 1 is the assembly drawing as the stator core of the preferred embodiments of the present invention;
Fig. 2 is the deployed condition as the stator core of the preferred embodiments of the present invention;
Fig. 3 inserts the local enlarged diagram behind the plastic package die for stator core.
Embodiment
Below in conjunction with accompanying drawing to a preferred embodiment of the present invention will be described in detail.With reference to Fig. 1, stator core comprises a plurality of unit iron core 1.Unit iron core 1 is along circumferentially distributing and interconnecting and be assembled into the stator core of circulus.Each unit iron core 1 all has yoke portion 11, tooth portion 12 and tooth ends 13.Tooth portion 12 is from the radially radial extension of yoke portion 11, and it is used for winding around 17, thereby when electric current flows through coil 17, makes stator core have the function of magnetic pole.Tooth ends 13 is positioned at tooth portion 12 outer ends.More particularly, in the present embodiment, stator core strikes out shape as shown in Figure 2 by an iron plate integral body, keeps connection status and not disconnection between the tooth ends 13 after the punching press, and yoke portion 11, tooth portion 12 and tooth ends 13 form as a whole by this way.Therefore, can save the cost of material.
As shown in Figure 1, stator core has peristome 14 in the head and the tail junction.More particularly, between two unit iron cores 1 that head and the tail connect (being left end and the unit iron core at right-hand member place among Fig. 2), be formed with peristome 14.In other words, peristome 14 is located between the tooth ends 13 of this unit iron core that connects from beginning to end.Peristome 14 can form as follows: the size of the unit iron core that will connect from beginning to end is provided with lessly relatively, and promptly under deployed condition, the circumferential size of the tooth ends 13 of the unit iron core 1 at place, two ends is arranged to slightly littler than the circumferential size of other tooth ends 13.Certainly, the invention is not restricted to this, also can peristome 14 be set other suitable mode between adjacent tooth ends 13.The shape that it is emphasized that peristome 14 does not receive concrete restriction, can be arbitrary shape, and the opening of peristome 14 is at interval less than the circumferential distance between the tooth portion 12.Like this, because the girth of stator core is littler than the girth of corresponding plastic package die, can easily the stator core that is wound with coil be put into plastic package die and carry out moulded section.
In addition, stator core also has hole 15.Shown in Fig. 1 to 3, this hole 15 is located between the adjacent yoke portion 11.The hole 15 embedded magnetic bearing pins 16 that are complementary with hole 15 that are inserted with.Radially the position is corresponding with hole 15 for peristome 14.In the present embodiment, peristome 14 forms by two unit iron cores that above-mentioned head and the tail are connected with hole 15.Yet, the invention is not restricted to this, also can between two unit iron cores that mediate, form corresponding peristome 14 and the operation property of hole 15 in addition with raising processing.Need to prove; The shape of this hole 15 does not receive concrete restriction; Can be circular port or square opening etc.; Can certainly form the gap of disconnection as peristome 14, as long as after the stator core that will be wound with coil is put into plastic package die, the bearing pin 16 corresponding with it at these hole 15 place's inserted-shapes gets final product to fill up hole 15 formed gaps.And the opening of hole 15 at interval should be less than the circumferential distance between the tooth portion 12.Like this, can make between the unit iron core 1 more closely to combine, and improve the electromagnetic property of junction.
As illustrated in fig. 1 and 2, unit iron core 1 has and is used for the concavo-convex fitting portion that cooperates with the adjacent cells iron core.Concavo-convex fitting portion is the first protruding fitting portion 111 and the first recessed fitting portion 112 in the yoke portion 11.Because this first protruding fitting portion 111 and the first recessed fitting portion 112, just can accurately locate and assemble each unit iron core.Thereby enhance productivity.
The present invention also provides a kind of method of making stator core.Wherein, Stator core is assembled into ring-type by a plurality of unit iron core 1 of circumferential distribution; Each unit iron core 1 all has yoke portion 11, from yoke portion 11 radially the tooth portion 12 of radial extension and the tooth ends 13 that is positioned at tooth portion 12 tops; Stator core has at least one peristome 14 and at least one hole 15, and peristome 14 is located between the adjacent tooth ends 13, and hole 15 is located between the adjacent yoke portion 11.The method of this manufacturing stator core may further comprise the steps: at first, under the deployed condition of stator core (as shown in Figure 2), the coil 17 that copper wire is processed is installed in the tooth portion 12 of unit iron core 1; Then, the stator core that is assembled into ring-type is inserted in the plastic package die 19; Then, magnetic bearing pin 16 is pressed in the hole 15; At last, in plastic package die, stator core is carried out moulded section, capsulation material 18 is pressed in the stator core.Preferably, radially the position is corresponding with hole 15 for peristome 14.
As stated, the expansion iron core that tooth ends 13 interconnects is in the form of a ring, and there is more than one peristome 14 in tooth ends 13.Equally, the expansion iron core is in the form of a ring, and there is more than one hole 15 in the yoke portion of yoke portion 11.Launching iron core carries out inserting in the form of a ring in the plastic package die 19 after spiral becomes the spiral stator.As the spiral stator of ring-type,, be easy to just can insert 19 li of plastic package dies because of the peristome 14 that has tooth ends 13 or the hole 15 of yoke portion 11.But shorter than plastic package die because of the girth of stator core, there is the space in the spiral stator between the tooth ends of iron core and the yoke portion of yoke portion after inserting plastic package die.For this reason, can in the hole 15 of 11 yoke portions of yoke portion, be pressed into magnetic bearing pin 16 after, be pressed into interior, the circle larger-size plastic package die in, the yoke portion of yoke portion 11 is closely linked.Afterwards, carry out moulded section, plastic packaging stator can be made.The plastic packaging moulding is made up of box-like auxiliary mould, and auxiliary mould is assembled the back separately carrying out the plastic packaging moulding, can improve the operation property of production.
Although this paper has described many embodiment, it will be understood by those of skill in the art that, can under the situation that does not break away from the spirit that is defined by the following claims and scope thereof, make other modification or change.
Claims (7)
1. stator core; Be assembled into ring-type by a plurality of unit iron cores (1); Each unit iron core (1) all has yoke portion (11), from said yoke portion (11) radially the tooth portion (12) of radial extension and the tooth ends (13) that is positioned at said tooth portion (12) top; It is characterized in that; Said stator core has at least one peristome (14), and said peristome (14) is located between the adjacent said tooth ends (13), and the circumferential size of the tooth ends (13) of the unit iron core (1) of said peristome (14) both sides is slightly littler than the circumferential size of the tooth ends (13) of other unit iron core (1);
Said stator core also has at least one hole (15); Said hole (15) is located between the adjacent said yoke portion (11), and the circumferential size of the yoke portion (11) of the unit iron core (1) of said hole (15) both sides is slightly littler than the circumferential size of the yoke portion (11) of other unit iron core (1);
The embedded magnetic bearing pin (16) that is complementary with said hole (15) that is inserted with of said hole (15).
2. stator core according to claim 1 is characterized in that, radially the position is corresponding one by one with said hole (15) for said peristome (14).
3. stator core according to claim 1 is characterized in that, said unit iron core (1) has and is used for the concavo-convex fitting portion that cooperates with the adjacent cells iron core.
4. stator core according to claim 3 is characterized in that, said concavo-convex fitting portion comprises the first protruding fitting portion (111) and the first recessed fitting portion of being located in the said yoke portion (11) (112).
5. motor that has according to each described stator core in the claim 1 to 4.
6. method of making stator core; Said stator core is assembled into ring-type by a plurality of unit iron cores (1) of circumferential distribution; Each unit iron core (1) all has yoke portion (11), from said yoke portion (11) radially the tooth portion (12) of radial extension and the tooth ends (13) that is positioned at said tooth portion (12) top; Said stator core has at least one peristome (14) and at least one hole (15); Said peristome (14) is located between the adjacent said tooth ends (13); And said hole (15) is located between the adjacent said yoke portion (11), and the circumferential size of the tooth ends (13) of the unit iron core (1) of said peristome (14) both sides is slightly littler than the circumferential size of the tooth ends (13) of other unit iron core (1), and the circumferential size of the yoke portion (11) of the unit iron core (1) of said hole (15) both sides is slightly littler than the circumferential size of the yoke portion (11) of other unit iron core (1); It is characterized in that, may further comprise the steps:
Under the deployed condition of said stator core, coil is installed in the said tooth portion (12) of said unit iron core (1);
The said stator core that is assembled into ring-type is inserted in the plastic package die;
Magnetic bearing pin (16) is pressed in the said hole (15);
In said plastic package die, said stator core is carried out moulded section.
7. the method for manufacturing stator core according to claim 6 is characterized in that, radially the position is corresponding one by one with said hole (15) for said peristome (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101088038A CN101958612B (en) | 2009-07-13 | 2009-07-13 | Stator core and manufacture method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101088038A CN101958612B (en) | 2009-07-13 | 2009-07-13 | Stator core and manufacture method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101958612A CN101958612A (en) | 2011-01-26 |
| CN101958612B true CN101958612B (en) | 2012-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101088038A Expired - Fee Related CN101958612B (en) | 2009-07-13 | 2009-07-13 | Stator core and manufacture method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101958612B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI620399B (en) | 2016-12-19 | 2018-04-01 | 群光電能科技股份有限公司 | Stator assembly and engaging type stator core |
| CN107650332A (en) * | 2017-10-26 | 2018-02-02 | 苏州工业职业技术学院 | A kind of injection mold for being applied to different folded thick stator core envelope modeling stators |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1145544A (en) * | 1995-06-07 | 1997-03-19 | 松下电器产业株式会社 | Motor stator and method of manufacturing thereof |
| US5729072A (en) * | 1992-09-24 | 1998-03-17 | Matsushita Electric Industrial Co., Ltd. | Stator for an electric motor |
| CN1288281A (en) * | 1999-07-02 | 2001-03-21 | 浙江卧龙电机股份有限公司 | Plastic sealing technique of plastic sealed electric machine with assembled piece type stator iron core |
| US6219900B1 (en) * | 1996-02-22 | 2001-04-24 | Honda Giken Kabushiki Kaisha | Method of assembling a stator core |
| CN1691466A (en) * | 2004-04-19 | 2005-11-02 | 谐波传动系统有限公司 | Split iron core type motor stator and assembling method |
| CN1753275A (en) * | 2004-09-20 | 2006-03-29 | 东洋电装株式会社 | Stator iron core for rotary electric machine |
| CN201515261U (en) * | 2009-07-13 | 2010-06-23 | 东莞信浓马达有限公司 | Stator iron core |
-
2009
- 2009-07-13 CN CN2009101088038A patent/CN101958612B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5729072A (en) * | 1992-09-24 | 1998-03-17 | Matsushita Electric Industrial Co., Ltd. | Stator for an electric motor |
| CN1145544A (en) * | 1995-06-07 | 1997-03-19 | 松下电器产业株式会社 | Motor stator and method of manufacturing thereof |
| US6219900B1 (en) * | 1996-02-22 | 2001-04-24 | Honda Giken Kabushiki Kaisha | Method of assembling a stator core |
| CN1288281A (en) * | 1999-07-02 | 2001-03-21 | 浙江卧龙电机股份有限公司 | Plastic sealing technique of plastic sealed electric machine with assembled piece type stator iron core |
| CN1691466A (en) * | 2004-04-19 | 2005-11-02 | 谐波传动系统有限公司 | Split iron core type motor stator and assembling method |
| CN1753275A (en) * | 2004-09-20 | 2006-03-29 | 东洋电装株式会社 | Stator iron core for rotary electric machine |
| CN201515261U (en) * | 2009-07-13 | 2010-06-23 | 东莞信浓马达有限公司 | Stator iron core |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平8-205485A 1996.08.09 |
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| Publication number | Publication date |
|---|---|
| CN101958612A (en) | 2011-01-26 |
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Granted publication date: 20120801 Termination date: 20200713 |
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| CF01 | Termination of patent right due to non-payment of annual fee |