CH96944A - Synchronous motor with pronounced poles for asynchronous starting. - Google Patents
Synchronous motor with pronounced poles for asynchronous starting.Info
- Publication number
- CH96944A CH96944A CH96944DA CH96944A CH 96944 A CH96944 A CH 96944A CH 96944D A CH96944D A CH 96944DA CH 96944 A CH96944 A CH 96944A
- Authority
- CH
- Switzerland
- Prior art keywords
- synchronous motor
- pole
- asynchronous starting
- pronounced poles
- pronounced
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K19/00—Synchronous motors or generators
- H02K19/02—Synchronous motors
- H02K19/14—Synchronous motors having additional short-circuited windings for starting as asynchronous motors
Description
Synchronmotor mit ausgeprägten Polen für asynchronen Anlauf. Bekanntlich bietet der asynchrone Anlauf von Synchronmotoren mit ausgeprägten Po len Schwierigkeiten, die in erster Linie auf die durch die Pollücken bedingte Veränder lichkeit des magnetischen Widerstandes, je nach der Stellung des Polrades gegenüber dem Stator zurückzuführen sind.
Vorliegende Erfindung bezweckt, diesen Übelstand nachMöglichkeit zu beseitigen und den asynchronen Anlauf derartiger Maschi nen zu sichern. Dies wird dadurch erreicht, dass die Polschuhe mindestens um die Pol lückenbreite schräggestellt sind.
In der Zeichnung sind zwei beispielsweise Ausführungsformen des Erfindungsgegen standes schematisch dargestellt. Fig. 1 zeigt in Abwicklung die Polflächen a dreier Pole des Magnetrades. Die Polkerne c sind punk tiert angedeutet und der Polabstand ist mit z bezeichnet. Der Winkel der Schrägstellung ist hier so gewählt, dass die Projektion d der Längsseite auf die Richtung b der Polbreite etwas grösser ist als die Pollücke e. Fig. 2 zeigt eine Ausführung, bei welcher die Schrägstellung der Polflächen a durch Unter teilung derselben in drei Teile und Staf felung der einzelnen Teile gegeneinander erreicht ist. Im übrigen sind die entsprechen den Teile hier mit den gleichen Buchstaben bezeichnet wie in Fig. 1.
Synchronous motor with pronounced poles for asynchronous starting. As is well known, the asynchronous start-up of synchronous motors with pronounced Po len difficulties that are primarily due to the variability of the magnetic resistance caused by the pole gaps, depending on the position of the pole wheel relative to the stator.
The present invention aims to eliminate this drawback as far as possible and to ensure the asynchronous start-up of such machines. This is achieved in that the pole shoes are inclined at least by the width of the pole gap.
In the drawing, two exemplary embodiments of the subject invention are shown schematically. Fig. 1 shows the development of the pole faces a of three poles of the magnetic wheel. The pole cores c are indicated dotted and the pole spacing is denoted by z. The angle of the inclination is chosen here so that the projection d of the long side onto the direction b of the pole width is slightly larger than the pole gap e. Fig. 2 shows an embodiment in which the inclination of the pole faces a is achieved by subdividing the same into three parts and Staf felung of the individual parts against each other. Otherwise, the corresponding parts are denoted here with the same letters as in FIG. 1.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH96944T | 1921-07-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH96944A true CH96944A (en) | 1922-11-16 |
Family
ID=4354626
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH96944D CH96944A (en) | 1921-07-08 | 1921-07-08 | Synchronous motor with pronounced poles for asynchronous starting. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH96944A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE744391C (en) * | 1938-02-14 | 1944-01-14 | Philips Patentverwaltung | Low power single phase capacitor motor |
-
1921
- 1921-07-08 CH CH96944D patent/CH96944A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE744391C (en) * | 1938-02-14 | 1944-01-14 | Philips Patentverwaltung | Low power single phase capacitor motor |
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