CN104079082A - Externally rotating type stator - Google Patents
Externally rotating type stator Download PDFInfo
- Publication number
- CN104079082A CN104079082A CN201310107518.0A CN201310107518A CN104079082A CN 104079082 A CN104079082 A CN 104079082A CN 201310107518 A CN201310107518 A CN 201310107518A CN 104079082 A CN104079082 A CN 104079082A
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- China
- Prior art keywords
- silicon steel
- steel bar
- section
- extension
- type stator
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Abstract
The invention discloses an externally rotating type stator. According to the externally rotating type stator, multiple silicon steel bars which are shaped like strips after being unfolded are stacked and combined into blocky semi-finished products, and the blocky semi-finished silicon steel bars are connected into a ring in a surrounding mode after coils are wound around predetermined stator teeth; each silicon steel bar is provided with multiple connecting sections which are connected into a whole to be stacked into a boot portion located on the periphery of the externally rotating type stator relatively, an extending section with a predetermined length is arranged in the middle of each connecting section to be stacked into the stator tooth serving as an iron core, a diagonal plane is arranged on each side of the tail end of each extending section to enable the adjacent extending sections to be connected through the diagonal planes on the two sides of the tail end of each extending section when the silicon steel bars are connected into a ring in the surrounding mode, and then the waste proportion of a material strap can be reduced; furthermore, due to the fact that the blocky semi-finished products form a ring in the surrounding mode after all the predetermined stator teeth are wrapped in coils, machining difficulty can be reduced greatly, winding time can be shortened, and acquisition cost of winding equipment can be reduced.
Description
Technical field
The stator structure of a kind of motor of the present invention, refers to that one can effectively reduce relative production cost especially, and increases the outward rotation type stator of production capacity.
Background technology
Press, at present common motor configuration, can be divided into internal rotor and external rotor kenel, and its structure is mainly made up of rotor and the stator that is wound with armature coil; Wherein, rotor has a permanet magnet, taking external rotor as example, this rotor is oppositely arranged on stator exterior circumferential, and in the time of motor running, the armature coil that first allows this stator be wound around passes to electric current, and produce electromagnetic force with the permanent-magnetic field reciprocation of rotor, rotor is driven and turn round.
As for, the structure of general outward rotation type stator, mainly have one and be circular body 10, be provided with some radial stator tooths 11 in body 10 centers, and form the boots portion 12 of a correspondence around body 10 edges in each stator tooth 11 tail ends, again with the device such as mould and coil winding machine, enamelled wire is passed through to two boots portion 12 gaps 13 of adjacent stators tooth 11, comply with default direction of winding on the bobbin of outward rotation type stator, and stacking formation has the coil groups 14 of thickness, in the time using, see through the control of circuit, make outward rotation type stator and rotor form interaction electromagnetic field, make motor be able to certain normal operation.
Only, existing outward rotation type stator becomes circular silicon steel sheet by silicon steel sheet with stamping technology integrated punching, again with the stacking framework with suitable thickness that is combined into of several pieces identical circular silicon steel sheets, it is in the stamped process of circular thin slice, the centre of each circular silicon steel sheet inner edge and the peripheral portions of outer rim all become waste material, silicon steel sheet material strip spacing with enough each circular silicon steel sheets of moulding is worthwhile, its waste material proportion, up to 7 one-tenth, causes forming the waste of material and the increase of manufacturing cost.
Especially, similar existing outward rotation type stator is in the winding process of coil groups, along circular body 10 peripheries, enamelled wire is wound the line by the mode in two boots portion 12 gaps 13 of adjacent stators tooth 11, not only difficulty of processing is higher, coiling is longer man-hour, and the spooling equipment cost of required investment is also higher.Therefore, how effectively to reduce the relative production cost of existing outward rotation type stator, and increase the production capacity of existing outward rotation type stator, be the problem of academia and solution that industrial circle is desired most ardently for many years always.
Summary of the invention
The present invention is providing one can effectively reduce relative production cost, and increases the outward rotation type stator of production capacity.
Take off object on reaching, outward rotation type stator of the present invention, the stacking combination of silicon steel bar that is strip by plural number expansion is strip and block semi-finished product, and after predetermined stator tooth winding coil, then the mode that half-finished strip and block each silicon steel bar is joined with two ends surrounds into circular; Wherein, each silicon steel bar has the connected jointing of plural one for being stacked into the boots portion that is relatively positioned at outward rotation type stator periphery, centre in each jointing has the extension of section of predetermined length for the stator tooth being stacked into as iron core along stretching, each extension of section tail end both sides have a scarf, make to surround into one when circular in silicon steel bar, adjacent extension of section can be connected to each other by the scarf of tail end both sides.
Utilize above-mentioned technical characterictic, can, in the punch forming process of silicon steel bar, in the same length of interval of material strip, dispose at least two by the corresponding interconnected silicon steel bar of extension of section, use the waste material ratio that reduces material strip; And, in stacking being after strip and block semi-finished product of silicon steel bar of predetermined quantity, can directly utilize the open space that is provided with extension of section one side, coil is set around on predetermined stator tooth, all completes after coiling until all predetermined stator tooths, then strip and block semi-finished product are surrounded into one circular, and make the extension of section tail end of each silicon steel bar towards ring center connecting sealed, not only can significantly reduce difficulty of processing, more can use and shorten the man-hour that winds the line, and reduce the acquisition cost of spooling equipment.Thereby can reach effective reduction cost of manufacture, and increase the object of production capacity.
According to above-mentioned technical characterictic, each silicon steel bar configures the extension of section of a width relative narrower between the relatively wide extension of section of two width, this outward rotation type stator only in the extension of section of wider width winding around on the stator tooth of stacking formation.
The jointing wide cut that above-mentioned each silicon steel bar forms in the extension of section tail end of wider width, is greater than the jointing wide cut that the narrower extension of section tail end of width forms relatively.
Above-mentioned outward rotation type stator to be less than wider width extension of section the insulating barrier of coating one predetermined thickness on the stator tooth of stacking formation.
Described each silicon steel bar is respectively equipped with at least one for the corresponding buckling parts engaging in the interconnective scarf of the extension of section place at two ends end to end.
Described each silicon steel bar is respectively equipped with to a buckling parts for joint corresponding to adjacent extension of section in the scarf of jointing.
Stacking being after strip and block semi-finished product of silicon steel bar of described predetermined quantity, fix with riveting method.
Stacking being after strip and block semi-finished product of silicon steel bar of described predetermined quantity, fix with welding manner.
The silicon steel bar of described predetermined quantity utilizes the stacking gummed of adhesion material to be strip and block semi-finished product.
Particularly, the disclosed outward rotation type stator of the present invention, except can effectively reducing relative production cost, and outside increase production capacity, still can between wide stator tooth, configure narrow stator tooth, and only in the design of wide stator tooth winding coil (across tooth coiling), improve the copper factor of coil; And, can be arranged with by increase the design of the boots portion wide cut under the stator tooth of coil, collect more magnetic flux (improving magnetite utilance), and then improve power density; And, not gapped between the each boots of overall outward rotation type stator portion, can lower change rate of magnetic reluctance, and then reduce cogging torque and reduce noise.
Brief description of the drawings
Fig. 1 is the coiling processing mode schematic diagram of an existing outward rotation type stator.
Fig. 2 is the outward rotation type stator structure plane graph of first embodiment of the invention.
Fig. 3 is silicon steel bar structural plan figure of the present invention.
Fig. 4 is the stacking structural perspective being after strip and block semi-finished product of the silicon steel bar of predetermined quantity in the present invention.
Fig. 5 is outward rotation type stator winding processing mode schematic diagram of the present invention.
Fig. 6 is the outward rotation type stator structure plane graph of second embodiment of the invention.
Figure number explanation:
[prior art]
10 bodies
11 stator tooths
12 boots portions
13 gaps
14 coil groups
[the present invention]
20 strip and block semi-finished product
21 silicon steel bars
211 jointings
212 extensions of section
213 scarves
214 buckling partss
30 coils.
Embodiment
In silicon steel bar structural plan figure as of the present invention in outward rotation type stator structure plane graph, Fig. 3 of Fig. 2 first embodiment of the invention, Fig. 4 the present invention as shown in the stacking structural perspective being after strip and block semi-finished product of silicon steel bar of predetermined quantity, outward rotation type stator of the present invention, the stacking combination of silicon steel bar 21 that is strip by plural number expansion is strip and block semi-finished product 20, and after predetermined stator tooth winding coil 30, then the mode that each silicon steel bar 21 of strip and block semi-finished product 20 is joined with two ends surrounds into circular; Wherein: each silicon steel bar 21 has the connected jointing of plural one 211 for being stacked into the boots portion that is relatively positioned at outward rotation type stator outer ring, centre in each jointing 211 has the extension of section of predetermined length 212 for the stator tooth being stacked into as iron core along stretching, each extension of section 212 tail end both sides have a scarf 213, make to surround into one when circular in silicon steel bar 21, adjacent extension of section 212 can be connected to each other by the scarf of tail end both sides 213.
Utilize said structure design, described silicon steel bar 21 can be one-body molded by punch process, and in forming process, in the same length of interval of material strip, dispose at least two by the corresponding interconnected silicon steel bar of extension of section, use the waste material ratio that reduces material strip; And, in stacking being after strip and block semi-finished product of silicon steel bar of predetermined quantity, can be as shown in Figure 5, directly utilize the open space that is provided with extension of section 212 1 sides, coil 30 is set around on predetermined stator tooth, all complete after coiling until all predetermined stator tooths, again by one circular surrounding into of strip and block semi-finished product 20, and make extension of section 212 tail ends of each silicon steel bar 21 towards ring center connecting sealed, not only can significantly reduce difficulty of processing, more can use and shorten the man-hour that winds the line, and reduce the acquisition cost of spooling equipment.Thereby can reach effective reduction cost of manufacture, and increase the object of production capacity.
Outward rotation type stator of the present invention, in the time implementing, stacking being after strip and block semi-finished product 20 of silicon steel bar 21 of described predetermined quantity, can riveting method by each silicon steel bar 21 secure bond, or with welding manner by each silicon steel bar 21 secure bond, or utilize adhesion material that the stacking gummed of silicon steel bar 21 of predetermined quantity is to strip and block semi-finished product 20.
Moreover, described each silicon steel bar 21 can be as shown in Figure 2, be respectively equipped with at least one for the corresponding buckling parts 214 engaging in the interconnective scarf of extension of section 212 213 places at two ends end to end, the mode of joining with two ends when each silicon steel bar 21 of strip and block semi-finished product 20 surrounds into when circular, can under corresponding joint of buckling parts 214 under the extension of section 212 at two ends end to end, really be fixed on circular.
Certainly, described each silicon steel bar 21 also can be as shown in Figure 6, all be respectively equipped with to the buckling parts 214 of a confession with the corresponding joint of adjacent extension of section 212 in the scarf 213 of each extension of section 212 both sides, can, under corresponding joint of buckling parts 214 under adjacent extension of section 212, strip and block semi-finished product 20 be fixed on circular really.Because each silicon steel bar 21 has the connected jointing of plural one 211 for being stacked into the boots portion that is relatively positioned at outward rotation type stator outer ring, not only surround into when circular at strip and block semi-finished product 20, can obtain comparatively solid and reliable structure, and it is not gapped between the each boots of overall outward rotation type stator portion, can effectively lower change rate of magnetic reluctance, and then reduce cogging torque and reduce noise.
It is worth mentioning that, each silicon steel bar 21 can configure the extension of section 212 of a width relative narrower between the relatively wide extension of section 212 of two width, only winding around 30 on 212 stacking stator tooths that form of the extension of section by wider width of entirety outward rotation type stator, that is be used in and between wide stator tooth, configure narrow stator tooth, and only in the design of wide stator tooth winding coil (across tooth coiling), improve the copper factor of coil; Again, under this example, overall outward rotation type stator can be less than by the extension of section of wider width the insulating barrier (figure slightly) of coating one predetermined thickness on the stacking stator tooth forming.
And, between the relatively wide extension of section of two width, configure the extension of section of a width relative narrower at above-mentioned each silicon steel bar, and only in the extension of section by wider width on the stacking stator tooth forming under the example of winding around, the jointing wide cut that each silicon steel bar forms in the extension of section tail end of wider width, it is good being relatively greater than the jointing wide cut that the narrower extension of section tail end of width forms, can be wound with by increase the design of the boots portion wide cut under the stator tooth of coil, collect more magnetic flux (improving magnetite utilance), and then raising power density.
Compare with conventional art, the disclosed outward rotation type stator of the present invention, except can effectively reducing relative production cost, and outside increase production capacity, still can between wide stator tooth, configure narrow stator tooth, and only in the design of wide stator tooth winding coil (across tooth coiling), improve the copper factor of coil; And, can be arranged with by increase the design of the boots portion wide cut under the stator tooth of coil, collect more magnetic flux (improving magnetite utilance), and then improve power density; And, not gapped between the each boots of overall outward rotation type stator portion, can lower change rate of magnetic reluctance, and then reduce cogging torque and reduce noise.
Claims (9)
1. an outward rotation type stator, is characterized in that, the stacking combination of silicon steel bar that is strip by plural number expansion is strip and block semi-finished product, and after predetermined stator tooth coiling, then the mode that half-finished strip and block silicon steel bar is joined with two ends surrounds into circular; Wherein:
Each silicon steel bar has the connected jointing of plural one for being stacked into the boots portion that is relatively positioned at outward rotation type stator periphery, centre in each jointing has the extension of section of predetermined length for the stator tooth being stacked into as iron core along stretching, each extension of section tail end both sides have a scarf, make to surround into one when circular in silicon steel bar, adjacent extension of section can be connected to each other by the scarf of tail end both sides.
2. outward rotation type stator as claimed in claim 1, it is characterized in that, each silicon steel bar configures the extension of section of a width relative narrower between the relatively wide extension of section of two width, this outward rotation type stator only in the extension of section by wider width winding around on the stacking stator tooth forming.
3. outward rotation type stator as claimed in claim 2, is characterized in that, the jointing wide cut that each silicon steel bar forms in the extension of section tail end of wider width is greater than the jointing wide cut that the narrower extension of section tail end of width forms relatively.
4. outward rotation type stator as claimed in claim 2, is characterized in that, outward rotation type stator to be less than by the extension of section of wider width the insulating barrier of coating one predetermined thickness on the stacking stator tooth forming.
5. outward rotation type stator as claimed in claim 1 or 2, is characterized in that, each silicon steel bar is respectively equipped with at least one for the corresponding buckling parts engaging in the interconnective scarf of the extension of section place at two ends end to end.
6. outward rotation type stator as claimed in claim 1 or 2, is characterized in that, each silicon steel bar is respectively equipped with to a buckling parts for joint corresponding to adjacent extension of section in the scarf of jointing.
7. outward rotation type stator as claimed in claim 1 or 2, is characterized in that, stacking being after strip and block semi-finished product of silicon steel bar of this predetermined quantity, fixes with riveting method.
8. outward rotation type stator as claimed in claim 1 or 2, is characterized in that, stacking being after strip and block semi-finished product of silicon steel bar of this predetermined quantity, fixes with welding manner.
9. outward rotation type stator as claimed in claim 1 or 2, is characterized in that, the silicon steel bar of this predetermined quantity utilizes the stacking gummed of adhesion material to be strip and block semi-finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310107518.0A CN104079082A (en) | 2013-03-29 | 2013-03-29 | Externally rotating type stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310107518.0A CN104079082A (en) | 2013-03-29 | 2013-03-29 | Externally rotating type stator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104079082A true CN104079082A (en) | 2014-10-01 |
Family
ID=51600184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310107518.0A Pending CN104079082A (en) | 2013-03-29 | 2013-03-29 | Externally rotating type stator |
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| Country | Link |
|---|---|
| CN (1) | CN104079082A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109347280A (en) * | 2018-11-30 | 2019-02-15 | 上海宇塚电子科技有限公司 | A kind of motor stator is interior around winding mechanism |
| CN110350685A (en) * | 2018-04-06 | 2019-10-18 | 马渊马达株式会社 | Motor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000116037A (en) * | 1998-09-29 | 2000-04-21 | Toshiba Corp | Method for manufacturing laminated core of motor, motor, and washing machine |
| TWM276382U (en) * | 2005-02-22 | 2005-09-21 | Headline Electric Co Ltd | Improved structure of expandable stator |
| CN201985631U (en) * | 2011-03-27 | 2011-09-21 | 配天(安徽)电子技术有限公司 | Stator core and permanent magnet motor |
-
2013
- 2013-03-29 CN CN201310107518.0A patent/CN104079082A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000116037A (en) * | 1998-09-29 | 2000-04-21 | Toshiba Corp | Method for manufacturing laminated core of motor, motor, and washing machine |
| TWM276382U (en) * | 2005-02-22 | 2005-09-21 | Headline Electric Co Ltd | Improved structure of expandable stator |
| CN201985631U (en) * | 2011-03-27 | 2011-09-21 | 配天(安徽)电子技术有限公司 | Stator core and permanent magnet motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110350685A (en) * | 2018-04-06 | 2019-10-18 | 马渊马达株式会社 | Motor |
| CN109347280A (en) * | 2018-11-30 | 2019-02-15 | 上海宇塚电子科技有限公司 | A kind of motor stator is interior around winding mechanism |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20141001 |