DE29722433U1 - Electric motor with winding head stiffener - Google Patents
Electric motor with winding head stiffenerInfo
- Publication number
- DE29722433U1 DE29722433U1 DE29722433U DE29722433U DE29722433U1 DE 29722433 U1 DE29722433 U1 DE 29722433U1 DE 29722433 U DE29722433 U DE 29722433U DE 29722433 U DE29722433 U DE 29722433U DE 29722433 U1 DE29722433 U1 DE 29722433U1
- Authority
- DE
- Germany
- Prior art keywords
- winding head
- electric motor
- winding
- stiffening elements
- coil legs
- 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.)
- Expired - Lifetime
Links
- 238000004804 winding Methods 0.000 title claims description 23
- 239000003351 stiffener Substances 0.000 title description 3
- 244000309464 bull Species 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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
- H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
- H02K3/505—Fastening of winding heads, equalising connectors, or connections thereto for large machine windings, e.g. bar windings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Description
GR 97 G 3927GR 97 G 3927
BeschreibungDescription
Elektromotor mit WickelkopfversteifungElectric motor with winding head stiffener
Die Erfindung betrifft einen Elektromotor mit einem Stator, der folgende Merkmale aufweist:The invention relates to an electric motor with a stator having the following features:
• geschichtete Wicklung mit Spulen, deren Spulenschenkel auf unterschiedliche Schichten verteilt sind und im Wickelkopfbereich zusammenlaufen,• layered winding with coils whose coil legs are distributed over different layers and converge in the winding head area,
• durch Versteifungselemente fixierte Spulenschenkel·,• coil legs fixed by stiffening elements·,
• durch Wickelkopfstützringe fixierte Wickelköpfe.• winding heads fixed by winding head support rings.
Um den Wickelkopfbereich eines Stators zu festigen, sind aus der Fachliteratur ( „Herstellung der Wicklungen elektrischer Maschinen" von H. Sequenz, Seite 131 ff) mehrere betriebsbedingte und beanspruchungsbedingte Konstruktionsvorschläge bekannt .In order to strengthen the winding head area of a stator, several operational and stress-related design proposals are known from the specialist literature ("Manufacture of the windings of electrical machines" by H. Sequenz, page 131 ff).
Für Elektromotoren mit hoher Drehzahl sind bei hohen Montageaufwand eine Vielzahl von speziellen Wickelkopfbefestigungsteilen notwendig. So werden gewisse Teile speziell benötigt, um getrennt für Ober- und Unterschicht die Spulenschenkel zu fixieren. Außerdem sind spezielle Zwischenelemente zur Fixierung der Ober- mit der Unterschicht notwendig. Um Wicklungsstützringe zu fixieren sind Stützelemente notwendig, die die Wicklungsstützringe am Blechpaket abstützen um so ein axiale Verschiebung des Wicklungsstützringes in Richtung des Blechpaketes während des Motorbetriebes zu verhindern.For high-speed electric motors, a large number of special winding head fastening parts are required for high assembly costs. Certain parts are specifically required to fix the coil legs separately for the upper and lower layers. In addition, special intermediate elements are required to fix the upper and lower layers. In order to fix the winding support rings, support elements are required that support the winding support rings on the laminated core in order to prevent axial displacement of the winding support ring in the direction of the laminated core during motor operation.
Die Aufgabe der Erfindung ist demnach, eine Wickelkopfbefestigung bei Elektromotoren zu schaffen, die mit wenigen Teilen eine ausreichende Fixierung bei gleichzeitigem geringen Montageaufwand erreicht.The object of the invention is therefore to create a winding head fastening for electric motors that achieves sufficient fixation with few parts and at the same time requires little assembly effort.
GR 97 G 3927 ; #··, ,GR 97 G 3927 ; # ··, ,
Die Lösung der gestellten Aufgabe gelingt dadurch, daß die Versteifungselemente Spulenschenkel gleicher Schichten und/oder unterschiedlicher Schichten versteifen.The solution to the problem is achieved by the stiffening elements stiffening coil legs of the same layers and/or different layers.
Durch Einsatz hochfester quellfähiger Versteifungselemente, die gleichzeitig die Unterschicht und die Oberschicht, als auch die Schichten gegeneinander versteifen, wird der Montageaufwand wesentlich verringert. Die Versteifungselemente werden zwischen die Spulenschenkel z. B. der Unterschicht eingesetzt. Aufgrund ihrer geometrischen Ausbildung reichen diese Elemente bis zur Oberschicht. An den Einbauorten der Versteifungselemente wird eine nahezu unverrückbare Lage dadurch erreicht, daß bei der Montage das hochfeste quellfähige Material der Versteifungselemente in die Isolierung der Spulenschenkel der Unter- bzw. Oberschicht eingedrückt wird und durch eine Imprägnierung zusätzlich fixiert wird. Durch eine radiale Verlängerung, als vorteilhafte Ausgestaltung der Versteifungselemente kann ein Wicklungsstützring durch den Anschlag an die radialen Versteifungen axial fixiert werden, ohne daß zusätzliche Stützelemente notwendig sind.By using high-strength, swellable stiffening elements, which simultaneously stiffen the lower layer and the upper layer, as well as the layers against each other, the assembly effort is significantly reduced. The stiffening elements are inserted between the coil legs, e.g. of the lower layer. Due to their geometric design, these elements reach up to the upper layer. At the installation locations of the stiffening elements, an almost immovable position is achieved by pressing the high-strength, swellable material of the stiffening elements into the insulation of the coil legs of the lower or upper layer during assembly and additionally fixing it by impregnation. By means of a radial extension, as an advantageous design of the stiffening elements, a winding support ring can be axially fixed by the stop on the radial stiffeners, without additional support elements being necessary.
Die Erfindung wird anhand eines Ausführungsbeispiel näher erläutert.
Es zeigen:
25The invention is explained in more detail using an embodiment. Shown are:
25
FIG 1 einen Längsschnitt eines Stators,FIG 1 shows a longitudinal section of a stator,
FIG 2 Stator aus der Sicht des Rotors.FIG 2 Stator from the rotor’s perspective.
FIG 1 zeigt einen Längsschnitt eines prinzipiell dargestellten Stators 1 eines Hochspannungsmotors, einen Wickelkopf 2 einer Spule 3. Die beiden Spulenschenkel 4 und 5 der Spule 3, die aus der Unterschicht 10 bzw. Oberschicht 11 des Blechpakets 6 ragen, sind beim Wickelkopf 2 zusammengeführt. EinFIG 1 shows a longitudinal section of a stator 1 of a high-voltage motor, shown in principle, a winding head 2 of a coil 3. The two coil legs 4 and 5 of the coil 3, which protrude from the lower layer 10 and upper layer 11 of the laminated core 6, are brought together at the winding head 2. A
GR 97 G 3927 · ·"· · · ,·* » '"IGR 97 G 3927 · ·"· · · ,·* » '"I
Versteifungselement 7 dient in Verbindung mit weiteren nicht
dargestellten Versteifungselementen der Versteifung der Oberschicht 11. Die Unterschicht 10 wird durch ein Versteifungselement
8 tangential und radial fixiert, zusätzlich wird durch dieses Versteifungselement 8 die Oberschicht 11 radial fixiert.
Der in Umlaufrichtung verlaufende Wicklungsstützring 9 wird durch eine radiale Verlängerung des Versteifungselementes
8 zusätzlich axial fixiert.Stiffening element 7 serves in conjunction with other non
illustrated stiffening elements of the stiffening of the upper layer 11. The lower layer 10 is fixed tangentially and radially by a stiffening element 8, in addition the upper layer 11 is fixed radially by this stiffening element 8.
The winding support ring 9 running in the direction of rotation is supported by a radial extension of the stiffening element
8 additionally fixed axially.
FIG 2 zeigt die Fixierung der Spulenschenkel 4,5 von Unterschicht
10 und Oberschicht 11 aus Sicht eines nicht dargestellten
Rotors.FIG 2 shows the fixation of the coil legs 4,5 of the lower layer
10 and upper class 11 from the perspective of an unillustrated
Rotors.
Die betriebsbedingt erforderlichen Fixierungen des Wickelkopfes können erfindungsgemäß mit geringem Montage- und Teileaufwand
durchgeführt werden.The required operational fixations of the winding head can be achieved with little assembly and parts effort
be performed.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29722433U DE29722433U1 (en) | 1997-12-18 | 1997-12-18 | Electric motor with winding head stiffener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29722433U DE29722433U1 (en) | 1997-12-18 | 1997-12-18 | Electric motor with winding head stiffener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE29722433U1 true DE29722433U1 (en) | 1998-02-26 |
Family
ID=8050190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE29722433U Expired - Lifetime DE29722433U1 (en) | 1997-12-18 | 1997-12-18 | Electric motor with winding head stiffener |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE29722433U1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19943446B4 (en) * | 1999-09-11 | 2006-12-14 | Eberhardt, Heinz Dieter, Prof. Dr.-Ing. | Cooling and fastening of winding heads of rotating electrical machines |
| DE102020129828A1 (en) | 2020-11-12 | 2022-05-12 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Stator of an electrical machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1977074U (en) * | 1967-08-24 | 1968-01-18 | Siemens Ag | REINFORCEMENT ARRANGEMENT FOR WINDING HEADS OF TWO-LAYER WINDINGS. |
| DE2600929A1 (en) * | 1975-01-23 | 1976-07-29 | Westinghouse Electric Corp | FASTENING AND TENSIONING DEVICE FOR WINDING LADDER IN ELECTRIC MACHINERY |
| DE3242018C2 (en) * | 1981-11-24 | 1986-07-24 | Mitsubishi Denki K.K., Tokio/Tokyo | Cooling device for an electric machine |
-
1997
- 1997-12-18 DE DE29722433U patent/DE29722433U1/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1977074U (en) * | 1967-08-24 | 1968-01-18 | Siemens Ag | REINFORCEMENT ARRANGEMENT FOR WINDING HEADS OF TWO-LAYER WINDINGS. |
| DE2600929A1 (en) * | 1975-01-23 | 1976-07-29 | Westinghouse Electric Corp | FASTENING AND TENSIONING DEVICE FOR WINDING LADDER IN ELECTRIC MACHINERY |
| DE3242018C2 (en) * | 1981-11-24 | 1986-07-24 | Mitsubishi Denki K.K., Tokio/Tokyo | Cooling device for an electric machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19943446B4 (en) * | 1999-09-11 | 2006-12-14 | Eberhardt, Heinz Dieter, Prof. Dr.-Ing. | Cooling and fastening of winding heads of rotating electrical machines |
| DE102020129828A1 (en) | 2020-11-12 | 2022-05-12 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Stator of an electrical machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R207 | Utility model specification |
Effective date: 19980409 |
|
| R163 | Identified publications notified |
Effective date: 19980316 |
|
| R150 | Utility model maintained after payment of first maintenance fee after three years |
Effective date: 20010330 |
|
| R151 | Utility model maintained after payment of second maintenance fee after six years |
Effective date: 20040312 |
|
| R152 | Utility model maintained after payment of third maintenance fee after eight years |
Effective date: 20060306 |
|
| R071 | Expiry of right |