CN103997139B - The stator of electric rotating machine - Google Patents
The stator of electric rotating machine Download PDFInfo
- Publication number
- CN103997139B CN103997139B CN201310757257.7A CN201310757257A CN103997139B CN 103997139 B CN103997139 B CN 103997139B CN 201310757257 A CN201310757257 A CN 201310757257A CN 103997139 B CN103997139 B CN 103997139B
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- wedge
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- slot
- recess
- stator
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Abstract
A kind of stator improving the electric rotating machine that the fixing wedge of coil is installed on the mounting structure with the wedge groove in grooving portion for the coil arranging on iron core.By increasing in make while the loss resin of accumulation and the contact area of wedge that prevent resin, provide the stator of the electric rotating machine that bonding force is higher, reliability is high.The inner peripheral surface of iron core 2 being formed as cylindrical shape has been axially formed grooving 6, two medial walls in the fluting portion of this grooving 6 are formed with slot 9, there is the wedge 9 in the fluting portion of state coverage grooving 6 being fastened on both sides in this slot 9, said stator has implemented resin impregnation process, inside in slot 7, it is formed with the recess 7A 1 tilting predetermined angular with respect to the width of the wedge 9 of engaging in this slot 7, in wedge 9, it is formed with so that the protuberance 9A 1 that the shape in recess 7A 1 tilts can be inserted in the state of engaging in slot 7.
Description
Technical field
Embodiments of the present invention are related to a kind of line improving and the fixing wedge of coil being installed on setting on iron core
The circle stator of the electric rotating machine of the mounting structure of wedge groove in grooving portion.
Background technology
The stator of the electric rotating machine such as motor or electromotor has columnar stator core.This stator core is by silicon steel
Plate is stacked, and the thickness setting dividing plate every regulation, to form the ventilation shaft of radial direction, cylindrical shape is integrally formed.In addition, at this
On the inner peripheral surface (and opposite face of rotor outer periphery) of stator core, throughout complete cycle be formed with a prescribed interval multiple vertically
The grooving of coil.This grooving is used for housing stator coil, and the fluting portion of its inner peripheral surface towards stator core passes through coil admittedly
Fixed wedge covers.That is, on two medial walls in the fluting portion of grooving, the length direction along this grooving forms wedge groove,
The fluting portion of the state coverage grooving that the fixing wedge of coil is engaged in wedge groove with its both sides.This wedge is covering opening of grooving
In the state of groove portion, dividing plate and the coil contact housing in grooving are passed through in its back side, are fixed.
When making such stator, after housing stator coil in grooving, adjust the thickness of dividing plate by line
The fixing wedge of circle is axially inserted in the wedge groove being formed in grooving fluting portion.In the case of such composition, the wedge of grooving
The bound fraction of the groove wedge fixing with coil can form face each other and contact, but in fact, because the relation of tolerance becomes line
Contact condition mutually fastens.
Hereafter, in order to be impregnated with resin in comprising of assembling in the stator of slot portion, make this stator in steeper
After interior vacuum impregnation, it is sling from steeper.After this is sling, make the resin in this stator residual that solidification is dried, with
Increase the bonding force of the wedge of wedge groove and coil fixation.
But, the bound fraction due to the wedge groove of grooving and the fixing wedge of coil is linear contact lay state, so in this portion
Gap is produced in point.Because used in dipping, resin viscosity is not high, so after stator is sling from steeper, tree
Fat passes through the gap producing, ventilation shaft between the fixing wedge of wedge groove and coil immediately and flows out.Therefore, solidification is being dried
Afterwards, resin remaining between grooving and coil fixed wedge is insufficient sometimes.Especially, in the downside of the inner circumferential (circumference) of stator
In grooving, in drying process after impregnating, resin easily runs off before it is dried, and fixing force weakens.
So although cannot be avoided generation gap in processing, but if remaining impregnating resin, then can expect to work as the initial stage
The dough-making powder treated contacts the equal restraining forceies for wedge.Therefore, it is intended that the resin entering gap does not flow out such structure.
Method as solving this problem, such as representing in Japanese Patent Laid-Open 2003-79087 publication,
Consider to form recess in wedge groove, so that resin is remained in this recess by surface tension, make this remaining resin and coil solid
Surely the side end using wedge contacts.
In the structure shown here, by formed recess, can using resin surface tension in recess remaining resin.But, by
The distance of the side end of its inner surface and wedge can be made elongated in forming recess, so resin and the wedge of remaining can not sufficiently be obtained
Side end contact area it is difficult to obtain firm bonding force.
Content of the invention
The technical problem to be solved in the present invention is, by making the resin of accumulation and connecing of wedge while preventing resin to run off
Contacting surface is amassed to be increased, and to provide a kind of stator of the electric rotating machine that bonding force is higher, reliability is high.
The stator of the electric rotating machine of embodiment of the present invention shape vertically on the inner peripheral surface being formed as cylindric iron core
Become and have the grooving of coil, this grooving, towards two medial walls in the fluting portion of above-mentioned inner peripheral surface unshakable in one's determination on, along this grooving
Length direction be formed with slot, said stator has that the state coverage being fastened in above-mentioned slot with both sides is above-mentioned to be cut
The fixing wedge of the coil in the fluting portion of groove, said stator has implemented resin impregnation process it is characterised in that in above-mentioned slot
Inside, along this slot length direction be formed with respect in this slot engaging above-mentioned wedge width tilt
The recess of predetermined angular, in the above-mentioned both sides of above-mentioned wedge, the length direction along this wedge is formed with to be fastened on above-mentioned slot
The protuberance that the shape in above-mentioned recess tilts can be inserted in the state of interior.
According to said structure, by preventing the loss of resin, increasing the contact site of wedge and resin simultaneously, resin can be passed through
Bonding wedge securely.
Brief description
Fig. 1 is the profile of the slot portion of the stator of the electric rotating machine representing one embodiment of the present invention.
Fig. 2 is the enlarged drawing of the pith of Fig. 1.
Fig. 3 is the enlarged drawing of the wedge groove representing in fig. 2.
Fig. 4 is the enlarged drawing of the pith of coil Wedge for fixing representing in fig. 2.
Fig. 5 is the amplification of the pith of the slot portion of the stator of the electric rotating machine of another embodiment of the present invention
Figure.
Fig. 6 is the figure of the basic structure of the stator of the electric rotating machine representing embodiments of the present invention.
Specific embodiment
Describe embodiments of the present invention with reference to the accompanying drawings in detail.First, the stator 1 of electric rotating machine is described according to Fig. 6
Basic structure.
In figure 6, stator 1 has into the iron core 2 of cylindrical shape.The silicon steel plate of ring-type is laminated and entirety by this stator core 2
Be formed as cylindric, sandwich, in the thickness every regulation, the ventilation shaft 3 that dividing plate (not shown) forms radial direction.Then both sides are passed through
Stator pressing plate 4 be integrally fixed by stud 5.
On the inner peripheral surface (upper surface in Fig. 6) of this stator core 2, throughout complete cycle formed at predetermined intervals a plurality of along axle
To coil grooving 6.This grooving 6 is used for housing stator coil 8, so as shown in figure 1, using the fixing wedge 9 of coil
Cover the fluting portion of the inner peripheral surface (diagram upper surface) towards stator core 2.That is, in the fluting portion of grooving 6 (in diagram
Portion) two medial walls on, the length direction along this grooving 6 is formed with slot (wedge groove) 7, the fixing wedge 9 of coil with its two
The fluting portion of the state coverage grooving 6 that sidepiece engages in slot 7.This wedge 9 cover grooving 6 fluting portion in the state of,
It is fixed by the coil 8 that its back side houses in dividing plate 10 is to grooving 6.As the material of the fixing wedge 9 of this coil,
Using polyester fiberglass pad laminated plate or epoxy resin iron powder glass mat etc..
Here, in the inside (diagram left/right end) of above-mentioned slot (illustrating as wedge groove below) 7, such as Fig. 2 and Fig. 3
Shown, it is formed with recess 7A-1.This recess 7A-1 is with respect to width (the diagram level side of the wedge 9 of engaging in wedge groove 7
To) tilt predetermined angular.In addition, this recess 7A-1 is formed along the length direction of wedge groove 7.The incline direction of this recess 7A-1 is set to
Incline direction towards unshakable in one's determination 2 periphery (below diagram) direction.Additionally, by forming the recess 7A-1 so tilting, such as Fig. 3
Shown, form relative protuberance 7A-2 in its root.
In addition, the insertion as described above of the both sides of wedge 9, being fastened in wedge groove 7, but this both sides point (left/
Right-hand member) etc., setting is just like protuberance 9A-1 such shown in Fig. 2 and Fig. 4.This protuberance 9A-1 is with as shown in Figure 2 the two of wedge 9
The mode that sidepiece is inserted in recess 7A-1 in the state of being fastened in wedge groove 7, as shown in figure 4, with above-mentioned recess 7A-
It is formed slopely on 1 incline direction identical direction.This protuberance 9A-1 is also formed along the length direction of wedge 9.Additionally, by being formed
The protuberance 9A-1 so tilting, forms relative recess 9A-2 in its root.
For such wedge groove 7 being formed, from being axially inserted into coil Wedge for fixing 9, so that the protuberance of coil Wedge for fixing 9
9A-1 enters its recess 7A-1, thus fixed coil 8.
Then, the above-mentioned stator 1 being formed is carried out to the impregnation process of resin in steeper (not shown),
Make it that solidification is dried after slinging.The above-below direction of the grooving 6 when slinging is the direction same with Fig. 1 or the direction from Fig. 1
In the case of ratating 90 degrees, when slinging stator 1, resin accumulates in the recess 7A-1 of wedge groove 7, is prevented from the stream of resin
Lose.Further, since the protuberance 9A-1 being formed as coil Wedge for fixing 9 enters the shape in the recess 7A-1 of wedge groove 7, so coil
The protuberance 9A-1 of Wedge for fixing 9 is dried in the state of being contacted with wide contact area with the resin accumulating in recess 7A-1 and coagulates
Gu, can firmly fix between coil Wedge for fixing 9 and unshakable in one's determination 2.
In the case that the above-below direction of the grooving 6 when slinging is the direction contrary with Fig. 1, resin accumulates in and is formed at line
In the recess 9A-2 of the root of protuberance 9A-1 of circle Wedge for fixing 9, it is prevented from the loss of resin.Further, since being formed at wedge
The protuberance 7A-2 of the root of recess 7A-1 of groove 7 enters at this resin accumulation, so coil Wedge for fixing 9 He can be firmly fixed
Between unshakable in one's determination 2.
As described above, according to present embodiment, by arranging recess 7A-1 in wedge groove 7, coil Wedge for fixing 9 sets
Put protuberance 9A-1, can be formed in impregnating resin and at resin accumulation, prevent resin to run off, can increase at resin accumulation simultaneously and
Wedge groove 7 and the contact area of coil Wedge for fixing 9.That is, when wedge 9 is inserted in wedge groove 7, the protuberance 9A-1 of wedge 9
Tip enter in wedge groove 7 recess 7A-1 entrance inner side, the most advanced and sophisticated entrance of protuberance 9A-1 accumulate in recess 7A-1
In resin, it is possible to being securely fixed.These as a result, it is possible to obtain fixing force big than ever, be prevented from coil
Wedge for fixing 9 falls in wedge groove 7.
Then the embodiment representing in explanation Fig. 5.The difference of present embodiment and above-mentioned embodiment is wedge groove 7
Recess 7A-1 and the incline direction of protuberance 9A-1 of coil Wedge for fixing 9 change.That is, in present embodiment
In, make the inner circumferential (diagram of the incline direction of the recess 7A-1 of the wedge groove 7 and protuberance 9A-1 of coil Wedge for fixing 9 towards iron core 2
Top) direction inclination.
In the present embodiment, when slinging from steeper, resin accumulates in and is formed at the convex of coil Wedge for fixing
In the recess 9A-2 of the root of portion 9A-1, resin can be prevented to run off.Further, since the root in the recess 7A-1 of wedge groove 7 is formed
Protuberance 7A-2 enter resin accumulation at, so in the state of there is wide contact area be dried solidification, can firmly fix
Between coil Wedge for fixing 9 and unshakable in one's determination 1.
In addition, the above-below direction of grooving 6 when slinging and Fig. 5 are reversely or situation about ratating 90 degrees from the direction of Fig. 5
Under, resin accumulates in the recess 7A-1 of wedge groove 7, and resin can be prevented to run off.Further, since the protuberance 9A- of coil Wedge for fixing 9
1 enters at resin accumulation, so solidification is dried in the state of having wide contact area, can firmly fix the fixing use of coil
Between wedge 9 and unshakable in one's determination 1.
Several embodiments with regard to the present invention are illustrated, but these embodiments are pointed out as an example,
It is not used in the scope limiting invention.These new embodiments can be implemented with other various forms, in wanting without departing from invention
In the range of point, various omissions, displacement, change can be carried out.These embodiments or its deformation be included in invention scope or
In person's main points, it is simultaneously contained in the invention recorded in claims and its equal scope.
Claims (3)
1. a kind of stator of electric rotating machine, is axially formed cutting of coil on the inner peripheral surface of iron core being formed as cylindrical shape
Groove, this grooving, towards two medial walls in the fluting portion of above-mentioned inner peripheral surface unshakable in one's determination on formed along the length direction of this grooving
There is slot, said stator has to be covered to the fluting portion of above-mentioned grooving with the state that both sides are fastened in above-mentioned slot
The fixing wedge of the coil of lid, said stator implemented resin impregnation process it is characterised in that
Above-mentioned slot is to surround the upper and lower surface of both sides of above-mentioned wedge and the shape of side, in the inner of described slot
Portion, the length direction along this slot is formed with to tilt to specify with respect to the width of the above-mentioned wedge of engaging in this slot
First recess of angle, forms the first relative protuberance in the root of this first recess,
In the above-mentioned both sides of above-mentioned wedge, the length direction along this wedge is formed with the second protuberance, and this second protuberance is inclined in card
Together in inserting in above-mentioned first recess in the state of in above-mentioned slot, form relative in the root of described second protuberance
Two recesses,
In described first recess that described second protuberance is inserted, it is formed with and is soaked for use by described resin impregnation process
The space that resin after stain is retained.
2. the stator according to the above-mentioned electric rotating machine of claim 1 it is characterised in that
Tilt towards above-mentioned peripheral direction unshakable in one's determination in the recess being internally formed of above-mentioned slot.
3. the stator according to the above-mentioned electric rotating machine of claim 1 it is characterised in that
Tilt towards above-mentioned interior circumferential direction unshakable in one's determination in the recess being internally formed of above-mentioned slot.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013026572A JP6039452B2 (en) | 2013-02-14 | 2013-02-14 | Rotating electric machine stator |
| JP2013-026572 | 2013-02-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103997139A CN103997139A (en) | 2014-08-20 |
| CN103997139B true CN103997139B (en) | 2017-03-01 |
Family
ID=51311195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310757257.7A Active CN103997139B (en) | 2013-02-14 | 2013-12-20 | The stator of electric rotating machine |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6039452B2 (en) |
| CN (1) | CN103997139B (en) |
| IN (1) | IN2014DE00080A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319927B (en) * | 2014-10-11 | 2016-04-27 | 新疆金风科技股份有限公司 | There is motor slot wedge and the combination unit of hermetically-sealed construction |
| CN104319911B (en) * | 2014-10-11 | 2017-03-22 | 新疆金风科技股份有限公司 | Motor iron core with sealing structure and combination device |
| KR20170138105A (en) * | 2016-06-07 | 2017-12-15 | 뉴모텍(주) | Spoke type rotor |
| US10868456B2 (en) * | 2018-05-31 | 2020-12-15 | Siemens Energy, Inc. | False tooth assembly for generator stator core |
| CN112600331A (en) * | 2020-11-27 | 2021-04-02 | 超音速智能技术(杭州)有限公司 | Small-sized motor rotor preventing rotor winding from being thrown out |
| JP2023146831A (en) * | 2022-03-29 | 2023-10-12 | ニデック株式会社 | Stator and wedge insertion device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010039381A1 (en) * | 2010-08-17 | 2012-02-23 | Siemens Aktiengesellschaft | Electric machine e.g. direct-driven wind generator, for use in ore mill, has active component whose full depth teeth and half depth teeth are mechanically connected with each other by anchor element |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5582050U (en) * | 1978-11-30 | 1980-06-06 | ||
| JPS59189448U (en) * | 1983-06-02 | 1984-12-15 | 株式会社東芝 | AC electric machine stator |
| JPS61247256A (en) * | 1985-04-25 | 1986-11-04 | Toshiba Corp | Fixing method for coil for rotary electric machine |
| JP2003079087A (en) * | 2001-09-05 | 2003-03-14 | Tma Electric Corp | Dynamo-electric stator |
| JP2009011110A (en) * | 2007-06-29 | 2009-01-15 | Nishishiba Electric Co Ltd | Stator for rotary electric machine |
| GB2503480A (en) * | 2012-06-28 | 2014-01-01 | Cummins Generator Technologies | Wedging arrangement for electrical machine |
-
2013
- 2013-02-14 JP JP2013026572A patent/JP6039452B2/en not_active Expired - Fee Related
- 2013-12-20 CN CN201310757257.7A patent/CN103997139B/en active Active
-
2014
- 2014-01-10 IN IN80DE2014 patent/IN2014DE00080A/en unknown
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010039381A1 (en) * | 2010-08-17 | 2012-02-23 | Siemens Aktiengesellschaft | Electric machine e.g. direct-driven wind generator, for use in ore mill, has active component whose full depth teeth and half depth teeth are mechanically connected with each other by anchor element |
Also Published As
| Publication number | Publication date |
|---|---|
| IN2014DE00080A (en) | 2015-06-12 |
| JP6039452B2 (en) | 2016-12-07 |
| JP2014158316A (en) | 2014-08-28 |
| CN103997139A (en) | 2014-08-20 |
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