EP3218995A1 - Verschlusskeil - Google Patents
VerschlusskeilInfo
- Publication number
- EP3218995A1 EP3218995A1 EP15804334.9A EP15804334A EP3218995A1 EP 3218995 A1 EP3218995 A1 EP 3218995A1 EP 15804334 A EP15804334 A EP 15804334A EP 3218995 A1 EP3218995 A1 EP 3218995A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wedge
- closure
- closure wedge
- winding
- underside
- 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.)
- Withdrawn
Links
Classifications
-
- 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
-
- 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
- H02K3/493—Slot-closing devices magnetic
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/25—Devices for sensing temperature, or actuated thereby
-
- 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
Definitions
- the invention relates to a closure wedge for fixing windings arranged in motor or generator winding slots.
- Rotor and stator of an electric motor comprise along their circumference by grooves mutually separate pole shoes, between which coil windings, usually made of copper wire run. Not only, but above all to stabilize the system against vibrations, these grooves are closed after insertion of the coil windings with sealing wedges again.
- the aim of the invention is to provide a closure wedge, with which the above problems can be solved completely or at least partially.
- the closure wedge which is preferably a stator wedge, has a corrugation on its underside facing the winding in the longitudinal direction at least in regions.
- Undulation means a preferably periodic change of the wedge height along the length of the sealing wedge.
- at least one elevation or depression is thus formed on the wedge underside, preferably a plurality of elevations or depressions are formed along the entire length or a longitudinal portion of the closure wedge.
- the corrugation compensates for the unevenness between the winding and the coil and thus results in a better bonding of the sealing wedge to the winding.
- a compressible soft material in particular polyester felt, which is compressed to a different degree by the corrugation on the underside of the closure wedge according to the invention, thereby achieving a better fixation of the winding and of the wedge.
- the sealing wedge is magnetised, but within the scope of the invention a non-magnetic wedge, e.g. be made of plastic or glass fiber reinforced plastic (GRP).
- GFP plastic or glass fiber reinforced plastic
- the underside have at least one or more half-wave-like recesses, which is delimited in each case by flat regions in the longitudinal direction.
- Another variant of the invention may consist in that the underside has at least one or more recesses which has rounded portions at their longitudinal ends and which is delimited in each case by longitudinal areas in the longitudinal direction.
- the wave-like formation of the wedge underside may be periodic, but it may also have irregular distances of the wave crests and wave troughs.
- the distance 12 between the recesses may be greater than the length 11 of the recess.
- sensors e.g. be designed for temperature or vibration measurement in the wedge.
- a further embodiment of the invention can therefore be that on the underside of the closure wedge in Area of one of the longitudinal ends of a longitudinally extending groove for receiving a sensor, preferably temperature sensor is excluded.
- the invention relates to a composite groove-winder closure wedge with one or more closure wedges according to the invention, which is characterized in that the closure wedge used is cast together with the winding, the insulating layer and the leveling layer with a binder.
- Leveling layer of felt preferably polyester felt, be formed.
- the binder may be a resin.
- Figure 1A is a partial perspective view of an embodiment of a closure wedge according to the invention with winding and groove.
- FIG. 1B is a partial oblique view of another embodiment of the closure wedge according to the invention.
- Fig. 2 is a partial oblique view of another
- FIG. 4 shows a cross section of the closure wedge according to FIG. 2;
- FIG. 5 shows a partial side view of the closure wedge according to FIG. 2;
- FIG. 6 and 7 is a bottom view and a side view of the closure wedge of Figure 2;
- FIG. 8 shows a partial longitudinal section through a further embodiment of the closure wedge according to the invention, which is arranged within an embodiment of the composite system according to the invention
- FIGS. 9 and 10 a side view and a bottom view of a further embodiment of the closure wedge according to the invention; 11 shows a cross section AA and FIG. 12 shows a cross section BB through the closure wedge according to FIGS. 9 and 10 and FIG
- FIG. 13 is a perspective view from below of the closure wedge according to FIGS. 9 and 10.
- Fig. 1A shows a, in particular magnetic, locking wedge 1, which fixes one or more motor or generator winding (s) 2 in a winding groove 3.
- the closure wedge is designed as a stator wedge.
- the closure wedge 1 has - seen in cross section - on opposite narrow sides stabilizing lugs 8, as shown in Fig. 4 in a cross-sectional view.
- the wedge 1 on its underside 4 facing the winding 2 has a corrugation in the longitudinal direction at least in regions (FIG. 2).
- the corrugation may e.g. Sinusoidally designed, but also designed to be different.
- the recesses preferably have a rounded profile.
- Fig.lB shows a further embodiment of the closure wedge 1 'according to the invention with - seen in cross section - semicircular stabilizing lugs 8' on opposite narrow sides. Enlarged drawn here is a between the wedge 1 'and the winding 2 arranged leveling layer 20 made of a compressible soft material, e.g. a polyester felt and an intermediate layer 22 between the windings 2. Both layers 20 and 22 are also provided in the embodiment of Fig.lA, but not shown there.
- the underside 4 has a plurality of recesses 10 which have rounded portions at their longitudinal ends and which are delimited in the longitudinal direction by flat areas.
- the underside of the closure wedge 1 can have half-wave-like depressions 8, which are delimited in each case by flat regions in the longitudinal direction.
- the distance 12 between the depressions 10 is greater than the length 11 of the depressions 10. This spacing relationship can be adapted to the particular circumstances in the construction of the closure wedge winding system.
- Figure 8 shows the composite system tongue and groove closure wedge with the inventive closure wedge 1, which on its underside a corrugation, e.g. by milling, which runs almost sinusoidally.
- a corrugation e.g. by milling
- Insulation layer 21 is applied to the winding 2 and on the insulating layer 21, a leveling layer 20, for example of polyester felt.
- the inserted wedge 1 is cast together with the winding 2, the insulating layer 21 and the leveling layer 20 with a binder, such as a resin.
- a binder such as a resin.
- prepreg elements can be used.
- FIG. 8 due to the wave-shaped configuration of the underside of the closure wedge 1 according to the invention, a different compression of the leveling layer 20 of polyester felt occurs, with a preferred one Thickness of 1mm to 5mm, whereby an improved bonding effect of the closure wedge 1 with the winding 22 comes.
- FIGS. 9 to 13 show a further embodiment of the closure wedge according to the invention, in which on the underside 4 of the closure wedge 1 in the region of one of the longitudinal ends a longitudinally extending groove 80 for receiving a sensor, not shown, preferably temperature sensor is excluded, the measurements during operation allows.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA820/2014A AT516479B1 (de) | 2014-11-12 | 2014-11-12 | Verschlusskeil |
PCT/EP2015/076455 WO2016075248A1 (de) | 2014-11-12 | 2015-11-12 | Verschlusskeil |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3218995A1 true EP3218995A1 (de) | 2017-09-20 |
Family
ID=54780254
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15804334.9A Withdrawn EP3218995A1 (de) | 2014-11-12 | 2015-11-12 | Verschlusskeil |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3218995A1 (de) |
AT (1) | AT516479B1 (de) |
WO (1) | WO2016075248A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016214029A1 (de) * | 2016-07-29 | 2018-02-01 | Volkswagen Aktiengesellschaft | Ein als Antriebsmaschine eines Kraftfahrzeuges einsetzbarer Elektromotor |
DE102021120989A1 (de) | 2021-08-12 | 2023-02-16 | Schaeffler Technologies AG & Co. KG | Stator, Nutverschlussmittel und Temperaturmessanordnung |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4883301U (de) * | 1972-01-18 | 1973-10-11 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB796222A (en) * | 1954-06-09 | 1958-06-11 | Papst Hermann | An electric rotary-field system |
SE336619B (de) * | 1968-12-23 | 1971-07-12 | Asea Ab | |
JPS5378406U (de) * | 1976-11-30 | 1978-06-29 | ||
JPS6051427A (ja) * | 1983-08-26 | 1985-03-22 | Hitachi Ltd | 回転電機の磁性楔 |
JP2004201446A (ja) * | 2002-12-19 | 2004-07-15 | Aisin Aw Co Ltd | ステータコア用のウェッジ |
DE102005030877A1 (de) * | 2005-07-01 | 2007-01-04 | Siemens Ag | Nutverschluss |
JP2011166859A (ja) * | 2010-02-05 | 2011-08-25 | Hitachi Automotive Systems Ltd | 回転電機 |
JP5971125B2 (ja) * | 2013-01-09 | 2016-08-17 | 株式会社デンソー | 固定子及びそれを備えた回転電機 |
-
2014
- 2014-11-12 AT ATA820/2014A patent/AT516479B1/de not_active IP Right Cessation
-
2015
- 2015-11-12 EP EP15804334.9A patent/EP3218995A1/de not_active Withdrawn
- 2015-11-12 WO PCT/EP2015/076455 patent/WO2016075248A1/de active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4883301U (de) * | 1972-01-18 | 1973-10-11 |
Non-Patent Citations (1)
Title |
---|
See also references of WO2016075248A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2016075248A1 (de) | 2016-05-19 |
AT516479B1 (de) | 2017-10-15 |
AT516479A1 (de) | 2016-05-15 |
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