DE589837C - Laminated sheet metal bodies for electrical machines with radially positioned ventilation webs in these slots, which are axially divided by ventilation slots and consist of sheets of the same diameter - Google Patents
Laminated sheet metal bodies for electrical machines with radially positioned ventilation webs in these slots, which are axially divided by ventilation slots and consist of sheets of the same diameterInfo
- Publication number
- DE589837C DE589837C DEA66292D DEA0066292D DE589837C DE 589837 C DE589837 C DE 589837C DE A66292 D DEA66292 D DE A66292D DE A0066292 D DEA0066292 D DE A0066292D DE 589837 C DE589837 C DE 589837C
- Authority
- DE
- Germany
- Prior art keywords
- ventilation
- sheet metal
- slots
- webs
- metal body
- 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
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Description
Die Erfindung bezieht sich auf lamellierte Blechkörper für Ständer und Läufer elektrischer Maschinen mit Lüftungsschlitzen zwischen den einzelnen Blechpaketen und mit in diesen Schlitzen radial gestellten Ventilationsstegen· sowie auf Verfahren zur Herstellung solcher Blechkörper.The invention relates to laminated sheet metal bodies for stator and rotor electrical Machines with ventilation slots between the individual sheet metal stacks and with ventilation webs positioned radially in these slots, as well as a method of production such sheet metal body.
Bei der Herstellung derartiger Blechkörper entsteht die Schwierigkeit, die Bleche am Ende der Zähne der Blechkörper genügend fest zu bekommen- Es zeigt sich immer, daß auch bei einer für das Zusammenhalten der Blechpakete genügenden Pressung die Zähne nicht fest genug gepreßt werden. Um dies zu vermeiden, hat- man bereits den einzelnen Blechen an den gezahnten Rändern eine gewisse Vorspannung gegeben. Dieses Verfahren ist aber umständlich. Zum Zusammenpressen der Blechzacken der Zähne hat man ferner vorgeschlagen, zwischen Preßplatte und Blechkörper eine Scheibe zu legen, die über die Zahnhöhe mit Stegen versehen ist, die gegen den Preßringrand eine Keilfläche besitzen, und wobei zwischen den Preßringrand und diese Keilflächen Druckkeile eingelegt werden. Diese Anordnung ist aber kompliziert und teuer.In the production of such sheet metal body, the difficulty arises, the sheets on To get the end of the teeth of the sheet metal body firmly enough- It always turns out that the teeth even if the pressure is sufficient to hold the laminations together not pressed tight enough. To avoid this, you already have the individual Sheets given a certain pretension on the serrated edges. This method but is cumbersome. To press the metal teeth of the teeth together you have also proposed to put a disc between the press plate and sheet metal body, the is provided over the tooth height with webs that a wedge surface against the press ring edge have, and with pressure wedges inserted between the pressing ring edge and these wedge surfaces will. However, this arrangement is complicated and expensive.
Gemäß der Erfindung werden zur Erzielung eines ausreichenden Preßdruckes auf die gezahnten Ränder der Blechpakete die Ventilationsstege an dem gegen die Zähne des Blechkörpers zugekehrten Ende keilförmig verbreitert.According to the invention are to achieve a sufficient pressure on the serrated edges of the laminated cores, the ventilation webs on the one against the teeth of the Sheet metal body facing end widened in a wedge shape.
In der Zeichnung ist ein Ausführungsbeispiel der Erfindung schematisch in Abb. 1 im Längsschnitt'durch einen Blechkörper dargestellt. Abb. 2 zeigt das verbreiterte Ende eines Ventilationssteges.In the drawing, an embodiment of the invention is shown schematically in Fig. 1 in Longitudinal section through a sheet metal body. Fig. 2 shows the widened end a ventilation bar.
In Abb. ι sind O1, a2 zwei geschichtete Blechpakete eines gezahnten Läufers oder Ständers einer elektrischen Maschine, zwischen denen ein Lüftungsschlitz mit der Weite Xx vorhanden ist, in dem Ventilationsstege b aus Blech radial gestellt befestigt sind. Das den Zähnen am äußeren oder inneren Rand der Blechpakete zugekehrte Ende der Ventilationsstege ist keilförmig auf den Betrag .ar» verbreitert, so daß auf die Zahne ein Preßdruck ausgeübt wird. Das keilförmige Ende der Ventilationsstege wird zweckmäßig schneidenartig ausgezogen, wodurch ihre Ventilationswirkung wesentlich verbessert wird.In Fig. Ι O 1 , a 2 are two layered laminated cores of a toothed rotor or stator of an electrical machine, between which there is a ventilation slot with the width X x , in which ventilation webs b made of sheet metal are attached radially. The teeth on the outer or inner edge of the laminated cores facing the end of the ventilation webs is wedge-shaped widened to the amount .ar ", so that a pressing pressure is applied to the teeth. The wedge-shaped end of the ventilation webs is expediently drawn out like a cutting edge, whereby their ventilation effect is significantly improved.
Zur Herstellung derartiger Blechkörper können die Ventilationsstege sowohl in Keilform zugerichtet eingefügt und der Blechkörper darauf gepreßt werden, oder es kann auch so verfahren werden, daß die Keilform der Ventilationsstege erst nach der Schichtung und Pressung des fertigen Blechkörpers hergestellt wird, indem durch besondere Werkzeuge in den Enden der Ventilationsstege Kerben c nach Fig. 2 eingedrückt werden. To produce such sheet metal bodies, the ventilation webs can be inserted in a wedge shape and the sheet metal body pressed onto it, or the procedure can be such that the wedge shape of the ventilation webs is only produced after the layering and pressing of the finished sheet metal body by using special tools in the Ends of the ventilation webs notches c according to FIG. 2 are pressed.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEA66292D DE589837C (en) | Laminated sheet metal bodies for electrical machines with radially positioned ventilation webs in these slots, which are axially divided by ventilation slots and consist of sheets of the same diameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEA66292D DE589837C (en) | Laminated sheet metal bodies for electrical machines with radially positioned ventilation webs in these slots, which are axially divided by ventilation slots and consist of sheets of the same diameter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE589837C true DE589837C (en) | 1933-12-21 |
Family
ID=6944085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEA66292D Expired DE589837C (en) | Laminated sheet metal bodies for electrical machines with radially positioned ventilation webs in these slots, which are axially divided by ventilation slots and consist of sheets of the same diameter |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE589837C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2658959A1 (en) * | 1990-02-26 | 1991-08-30 | Valeo Equip Electr Moteur | COOLING DEVICE FOR AN ELECTRIC ROTATING MACHINE, IN PARTICULAR FOR A MOTOR VEHICLE ALTERNATOR. |
-
0
- DE DEA66292D patent/DE589837C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2658959A1 (en) * | 1990-02-26 | 1991-08-30 | Valeo Equip Electr Moteur | COOLING DEVICE FOR AN ELECTRIC ROTATING MACHINE, IN PARTICULAR FOR A MOTOR VEHICLE ALTERNATOR. |
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