EP3949086A1 - Nutverschlusskeil und diesen verwendendes verfahren - Google Patents
Nutverschlusskeil und diesen verwendendes verfahrenInfo
- Publication number
- EP3949086A1 EP3949086A1 EP20714108.6A EP20714108A EP3949086A1 EP 3949086 A1 EP3949086 A1 EP 3949086A1 EP 20714108 A EP20714108 A EP 20714108A EP 3949086 A1 EP3949086 A1 EP 3949086A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- slot
- groove
- wedge
- insulation material
- closure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 13
- 239000012774 insulation material Substances 0.000 claims abstract description 35
- 238000004804 winding Methods 0.000 claims description 17
- 238000009413 insulation Methods 0.000 description 4
- 239000004734 Polyphenylene sulfide Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 description 2
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
Classifications
-
- 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
- H02K15/0018—Applying slot closure means in the core; Manufacture of slot closure means
-
- 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
- H02K15/10—Applying solid insulation to windings, stators or rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
- H02K3/345—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation between conductor and core, e.g. slot insulation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/48—Fastening of windings on the stator or rotor structure in slots
- H02K3/487—Slot-closing devices
Definitions
- the invention relates to electrical machines and more particularly to the design of the
- Wave winding is the slot closure, i.e. the closure of the slots that accommodate the windings of the electrical machine in the stator or rotor. Due to the high voltage acting in the electrical machine and also the related
- Such a slot closure is required according to regulations, but is not easy to implement due to the radial introduction of the windings into the slot.
- the object is therefore to provide a slot locking wedge which enables a reliable locking of a slot in a simple manner.
- a corresponding procedure should also be specified.
- the slot closure wedge has a trunk area and an engagement area perpendicular to the trunk area. If the slot locking wedge is inserted into a slot, the trunk area points in the radial direction with respect to the electrical machine, and thus in the direction in which the slot extends.
- Trunk area vertical engagement area is provided with
- the engagement area is plate-shaped.
- a plate-shaped design increases tolerances for secure engagement with the
- a closure cap is provided on the trunk area.
- the closure cap is at a distance from the engagement area. While the engagement area in the interior of the groove comes into engagement with the groove insulation material, the closure cap closes the groove to the outside, that is to say against the air gap of the electrical machine.
- the slot closure wedge can be designed in such a way that the distances required for high-voltage insulation are ensured in a simple and reliable manner by defining a sufficiently long creepage distance through the slot closure wedge. If the slot closure wedge has a closure cap, this can be done on the
- Closure cap corresponding projections can be formed which limit such a creepage distance.
- projections can be provided on the trunk area which limit such a creepage distance.
- a combination of the two options just mentioned is also conceivable.
- the method according to the invention is used to close a slot after a winding has been introduced into the slot and uses one described above
- the procedure includes at least the following steps.
- the slot insulation material is then deformed in such a way that at least two opposing areas of the slot insulation material are directed towards a center axis of the slot; the center axis runs in the radial direction with respect to the electrical machine.
- a slot locking wedge according to the invention is then introduced into the slot. This is done in such a way that the engagement area of the slot wedge with the at least two opposite areas of the
- Slot insulation material is engaged, which were generated by the previous deformation of the slot insulation material. This can be done, for example, in such a way that initially the areas formed by the deformation of the slot insulation material are still held outside the slot, the engagement area in the axial direction, i.e. perpendicular to the radial extent of the slot, in engagement with the deformed
- slot insulation material is brought, and slot insulation material and slot locking wedge are then brought together in the intended position in the slot.
- a sufficiently elastic slot insulation material can be used
- the engagement area is introduced into the slot, first of all also pressing the deformed slot insulation material into the interior of the slot before the slot insulation material springs back and so comes behind the engagement area, whereby then the engagement area with the
- the slot closure wedge has a closure cap.
- the slot closure wedge is fixed by the closure cap, in particular laterally, that is, perpendicular to the center axis of the groove.
- the slot closure wedge inserted into the groove defines a creepage distance in the groove through these projections.
- the slot wedge can be made of a plastic, e.g. Polyphenylene sulfide (PPS), are produced, preferably in one piece.
- PPS Polyphenylene sulfide
- a more elastic plastic also favors the radial insertion of the slot wedge into the slot, since then the area of engagement when passing through the deformed area of the
- Figure 1 shows a first embodiment of an inventive
- FIG. 2 shows the exemplary embodiment from FIG. 1 in plan view.
- Figure 3 shows a second embodiment of an inventive
- FIG. 4 shows the exemplary embodiment from FIG. 3 in a top view.
- Figure 5 shows an example of the closure of a groove according to the invention.
- FIG. 6 shows a further example of the closure of a groove according to FIG.
- FIG. 1 shows an embodiment of a slot locking wedge 1 according to the invention.
- the slot closure wedge 1 has a trunk area 2 and an engagement area 3 perpendicular thereto.
- the slot closure wedge 1 has a closure cap 4 attached to the trunk area 2, on which projections 5 are formed, which serve to limit a creepage distance in a groove.
- FIG. 2 shows the slot closure wedge 1 from FIG. 1 in a top view.
- the elements shown have already been explained in connection with FIG. 1.
- the engagement area 3 is plate-shaped.
- Fig. 3 shows a further embodiment of an inventive
- the slot locking wedge 1 has a trunk area 2 and an engagement area 3 perpendicular thereto.
- the slot locking wedge 1 has a trunk area 2 and an engagement area 3 perpendicular thereto.
- Groove locking wedge 1 via a closure cap 4 attached to the trunk area 2.
- projections 6 are provided on the trunk area 2, which serve to limit a creepage distance in a groove.
- FIG. 4 shows the slot closure wedge 1 from FIG. 3 in a top view.
- the elements shown have already been explained in connection with FIG. 3.
- the engagement area 3 is plate-shaped.
- Fig. 5 shows stages of the closure of a groove 10 in connection with the
- the center axis 100 extends in the radial direction with respect to an electrical machine in whose stator or rotor the groove 10 is provided; that is, the axis of rotation of the rotor of the electrical machine is perpendicular to the plane of the drawing.
- a slot insulation material 11 is introduced into the slot 10, and a winding 20 is already arranged in the slot 10.
- stage B the slot insulation material 11 is deformed in such a way that regions 12 of the slot insulation material 11 are directed towards the center axis 100.
- stage C there is a slot wedge 1, of which The type shown in FIG. 1 is inserted into the groove 10. Also shown schematically is a creepage distance 21 which is delimited by the projections 5 on the slot closure wedge 1.
- the opening of the groove 10 is opposite the
- the diameter of the groove 10 is narrowed. As a result, the closure cap 4 and thus the entire slot closure wedge 1 is held in the groove 10. However, it is also conceivable that there is no narrowing of the groove, but rather that the groove has a constant diameter, for example. In this case, the slot locking wedge could be held in the slot with a friction fit.
- Fig. 6 shows stages of the closure of a groove 10 in connection with the
- the center axis 100 extends in the radial direction with respect to an electrical machine in whose stator or rotor the groove 10 is provided; that is, the axis of rotation of the rotor of the electrical machine is perpendicular to the plane of the drawing.
- a slot insulation material 11 is introduced into the slot 10, and a winding 20 is already arranged in the slot 10.
- the slot insulation material 11 is deformed in such a way that regions 12 of the slot insulation material 11 are directed towards the center axis 100.
- a slot locking wedge 1 of the type shown in FIG. 3 is inserted into the slot 10.
- a creepage distance 21 which is delimited by the projections 6 on the slot closure wedge 1.
- the opening of the groove 10 is opposite the
- the diameter of the groove 10 is narrowed. As a result, the closure cap 4 and thus the entire slot closure wedge 1 is held in the groove 10. However, it is also conceivable that there is no narrowing of the groove, but that the groove has a constant diameter, for example. In this case, the slot locking wedge could be held in the slot with a friction fit.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019107537.8A DE102019107537A1 (de) | 2019-03-25 | 2019-03-25 | Nutverschlusskeil und diesen verwendendes verfahren |
PCT/DE2020/100155 WO2020192824A1 (de) | 2019-03-25 | 2020-03-06 | Nutverschlusskeil und diesen verwendendes verfahren |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3949086A1 true EP3949086A1 (de) | 2022-02-09 |
Family
ID=70005563
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20714108.6A Pending EP3949086A1 (de) | 2019-03-25 | 2020-03-06 | Nutverschlusskeil und diesen verwendendes verfahren |
Country Status (5)
Country | Link |
---|---|
US (1) | US20220181953A1 (de) |
EP (1) | EP3949086A1 (de) |
CN (1) | CN113366737A (de) |
DE (1) | DE102019107537A1 (de) |
WO (1) | WO2020192824A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023028985A1 (zh) * | 2021-09-03 | 2023-03-09 | 舍弗勒技术股份两合公司 | 定子组件用槽楔及定子组件 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1105978B (de) * | 1959-03-19 | 1961-05-04 | Bbc Brown Boveri & Cie | Nutisolation fuer die Statoren elektrischer Motoren, insbesondere fuer das Statorpaket von gekapselten Motorverdichtern von Kaeltemaschinen |
US3229131A (en) * | 1962-02-26 | 1966-01-11 | Allis Chalmers Mfg Co | Dynamoelectric machines having slot stick bearings |
JPS57176753A (en) * | 1981-04-23 | 1982-10-30 | Toshiba Corp | Insulating stack |
JP3624825B2 (ja) * | 2000-12-14 | 2005-03-02 | 日産自動車株式会社 | 回転電機および回転電機の製造方法 |
JP2005184994A (ja) * | 2003-12-19 | 2005-07-07 | Matsushita Electric Ind Co Ltd | 電動機およびその製造方法 |
CN101064451A (zh) * | 2006-04-24 | 2007-10-31 | 乐金电子(天津)电器有限公司 | 压缩机电机定子的绝缘纸结构 |
JP4915154B2 (ja) * | 2006-07-07 | 2012-04-11 | パナソニック株式会社 | 整流子電動機 |
DE502007002026D1 (de) * | 2007-01-19 | 2009-12-31 | Engel Elektroantriebe Gmbh | Stator einer elektrischen Maschine |
CN101272069A (zh) * | 2007-03-19 | 2008-09-24 | 上海海立(集团)股份有限公司 | 一种压缩机用集中绕线电机的槽楔 |
JP2013247696A (ja) * | 2012-05-23 | 2013-12-09 | Jtekt Corp | 回転電機 |
JP5682600B2 (ja) * | 2012-08-07 | 2015-03-11 | トヨタ自動車株式会社 | 回転電機のロータ |
JP5742804B2 (ja) * | 2012-09-06 | 2015-07-01 | トヨタ自動車株式会社 | 回転電機のロータ及び回転電機 |
KR20160043307A (ko) * | 2014-10-13 | 2016-04-21 | 이래오토모티브시스템 주식회사 | 차량용 교류발전기의 고정자 |
DE102015205333A1 (de) * | 2015-03-24 | 2016-09-29 | Volkswagen Aktiengesellschaft | Stator für eine Elektromaschine |
EP3107194B1 (de) * | 2015-06-19 | 2018-11-28 | GE Renewable Technologies Wind B.V. | Unterstützungsvorrichtung und verfahren zur unterstützung von wickelspulen in einem windturbinengenerator |
US20170358968A1 (en) * | 2016-06-13 | 2017-12-14 | Alstom Renewable Technologies | Supporting device and method for supporting winding coils in a wind turbine generator |
CN208754092U (zh) * | 2018-10-15 | 2019-04-16 | 上海海立电器有限公司 | 用于压缩机的电机槽楔以及电机 |
-
2019
- 2019-03-25 DE DE102019107537.8A patent/DE102019107537A1/de active Pending
-
2020
- 2020-03-06 WO PCT/DE2020/100155 patent/WO2020192824A1/de unknown
- 2020-03-06 CN CN202080011630.2A patent/CN113366737A/zh active Pending
- 2020-03-06 EP EP20714108.6A patent/EP3949086A1/de active Pending
- 2020-03-06 US US17/441,299 patent/US20220181953A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
US20220181953A1 (en) | 2022-06-09 |
CN113366737A (zh) | 2021-09-07 |
WO2020192824A1 (de) | 2020-10-01 |
DE102019107537A1 (de) | 2020-10-01 |
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