AT81518B - High-frequency machine like a homopolar machine. - Google Patents

High-frequency machine like a homopolar machine.

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Publication number
AT81518B
AT81518B AT81518DA AT81518B AT 81518 B AT81518 B AT 81518B AT 81518D A AT81518D A AT 81518DA AT 81518 B AT81518 B AT 81518B
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AT
Austria
Prior art keywords
machine
homopolar
frequency
winding
machines
Prior art date
Application number
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German (de)
Original Assignee
Robert Bosch Ag Robert Bosch A
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch Ag Robert Bosch A filed Critical Robert Bosch Ag Robert Bosch A
Application granted granted Critical
Publication of AT81518B publication Critical patent/AT81518B/en

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  • Synchronous Machinery (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Hochfrequenzmaschine nach Art einer    Gleichpolmaschine.   



     Gleichpolmaschinen   für technische Wechselströme sind im neuzeitlichen Elektromaschinenbau infolge der bei ihnen   wenig günstigen Ausnutzung   des Materials nicht mehr gebaut worden. Erst das   Bedürfnis   nach Wechselstrommaschinen für hohe Frequenzen, wie sie für die Zwecke der drahtlosen   Telegraphic   verwendet werden, hat der Gleichpolmaschine wieder Anwendung verschafft. Ihr grösster Vorzug liegt in den geringen Eisenverlusten, was besonders hei Hochfrequenzmachinen von Bedeutung ist, Bei der Gleichpolmaschine wird nur die Ankeroberfläche von den Gleichpolkraftflüssen durchsetzt, während in dem übrigen Magneteisen der Maschine ein ruhender Kraftfluss vorbanden ist. 



   Hochfrequenzmaschinen nach dem Gleichpoltyp wurden bisher mit einer um die ganze   Maschine herumgehenden Erregerspule gebaut,   die   von   zwei   Statoren umschlossen Ist. Der   von der Spule erzeugte Kraftfluss schliesst   s@h   über dem Rotor,   w'nn dessen Zahne den   mit den   Ankerspulen bewickelten Eisenkernen   des Stators gegenüberstehen. Befinedt sich 
 EMI1.1 
 Kraftlinien in der Luft und mithin der Widerstand sehr gross, der magnetische Induktions fluss durch die Ankerspulen also sehr klein. 



   Fig. i zeigt eine Gleichpolmaschine, wie sie bisher   für   die   Zwoke der drahtton     Telegraphie   gebaut wurde, im   Schnitt. T ?   ist der rotor, S1 und S2 sind die beiden den 
 EMI1.2 
   n'ss   ist die Erregerspule. Die   Ausführung   mit doppelter Staorwicklung erschwert den Aufbau der Maschine und verteuert sie. was sich   besonders hei Maschinen kleiner Leistung bemeik-   bar macht. Die um die ganze Maschine herumgehende Erregerspule erfordert infolge der grossen mittleren Wicklungslänge ein grosses Kupfergewicht und entsprechende Kosten. 



   Den Gegenstand der Erfindung bildet eine Maschine, die gleichfalls nach dem Gleich-   poltyp   gebaut ist, die jedoch eine Statorwicklung und ein geringes Kupfergewicht für die Errgeerspule erfodert. Nach der Erfindung ist der Wickelschritt der durchlaufenden Statorwicklung gleich der halben Polteilung der beiden induzierend wirkenden ungleichnamigen 
 EMI1.3 
 einen Kühlschlitz : er tragt die durchgehende Wechselstromwicklung Ws, die in Nuten in ihn eingelegt ist. Fig. 3 zeigt eine Abwicklung der Polanordnung des Rotors. Wie aus ihr   ers : chtlich   ist, steht immer einem Pol vom Rototeil R1 eine Lücke vom rotorteil R2 
 EMI1.4 
 gemeinsame Wicklung Ws stets in derselben Richtung induziert   \\ ird.   

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  High-frequency machine like a homopolar machine.



     Homopolar machines for technical alternating currents are no longer built in modern electrical engineering due to the fact that the material is not used very favorably. It was not until the need for alternating current machines for high frequencies, such as those used for wireless telegraphic purposes, that the homopolar machine was used again. Their greatest advantage lies in the low iron losses, which is particularly important in high-frequency machines. In the homopolar machine, only the armature surface is penetrated by the homopolar force flows, while the rest of the magnet iron of the machine has a static force flow.



   Up to now, high-frequency machines of the homopolar type have been built with an excitation coil that surrounds the entire machine and is enclosed by two stators. The power flow generated by the coil closes s @ h over the rotor when its teeth are opposite the iron cores of the stator wound with the armature coils. Well done
 EMI1.1
 Lines of force in the air and therefore the resistance is very large, so the magnetic induction flow through the armature coils is very small.



   Fig. I shows a homopolar machine, as it was previously built for the Zwoke of wire-tone telegraphy, in section. T? is the rotor, S1 and S2 are the two den
 EMI1.2
   n'ss is the excitation coil. The design with double stagnation winding complicates the construction of the machine and makes it more expensive. which is especially suitable for machines with low output. The excitation coil going around the entire machine requires a large copper weight and corresponding costs due to the large average winding length.



   The subject matter of the invention is a machine which is also built according to the homopolar type, but which requires a stator winding and a low copper weight for the exciter coil. According to the invention, the winding step of the continuous stator winding is equal to half the pole pitch of the two inducing acting dissimilar ones
 EMI1.3
 a cooling slot: it carries the continuous alternating current winding Ws, which is inserted in slots in it. Fig. 3 shows a development of the pole arrangement of the rotor. As can be seen from it, there is always a gap from the rotor part R2 to one pole of the rotor part R1
 EMI1.4
 common winding Ws is always induced in the same direction.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

Fig. 4 lässt erkennen, wie in einer durchlaufenden Statorwicklung bei Versetzung der EMI1.5 sehr gering ist, und daher die Pole der Rotorteile R1 und R2 nahe zusammenrücken könn- PATEXT-AXSPRUCH : EMI1.6 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. Fig. 4 shows how in a continuous stator winding when the EMI1.5 is very small, and therefore the poles of the rotor parts R1 and R2 can move close together- PATEXT-AXSPRUCH: EMI1.6 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT81518D 1917-07-02 1918-05-13 High-frequency machine like a homopolar machine. AT81518B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE81518X 1917-07-02

Publications (1)

Publication Number Publication Date
AT81518B true AT81518B (en) 1920-10-11

Family

ID=5639540

Family Applications (1)

Application Number Title Priority Date Filing Date
AT81518D AT81518B (en) 1917-07-02 1918-05-13 High-frequency machine like a homopolar machine.

Country Status (1)

Country Link
AT (1) AT81518B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1296699B (en) * 1965-01-21 1969-06-04 Lloyd Dynamowerke Gmbh Disk-type electric machine
DE102007018213B3 (en) * 2007-04-16 2008-10-30 Entrak Energie- Und Antriebstechnik Gmbh & Co. Kg Homo-polar machine for driving motor for rail or land vehicle, has armature system, with two axially spaced pair of like poles rotating at certain degree and stator system is provided, which has accurate stator laminated core

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1296699B (en) * 1965-01-21 1969-06-04 Lloyd Dynamowerke Gmbh Disk-type electric machine
DE102007018213B3 (en) * 2007-04-16 2008-10-30 Entrak Energie- Und Antriebstechnik Gmbh & Co. Kg Homo-polar machine for driving motor for rail or land vehicle, has armature system, with two axially spaced pair of like poles rotating at certain degree and stator system is provided, which has accurate stator laminated core

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