DE124931C - - Google Patents

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Publication number
DE124931C
DE124931C DENDAT124931D DE124931DA DE124931C DE 124931 C DE124931 C DE 124931C DE NDAT124931 D DENDAT124931 D DE NDAT124931D DE 124931D A DE124931D A DE 124931DA DE 124931 C DE124931 C DE 124931C
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DE
Germany
Prior art keywords
coil
turns
core
current
motor
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.)
Active
Application number
DENDAT124931D
Other languages
German (de)
Publication of DE124931C publication Critical patent/DE124931C/de
Active legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00Magnets
    • H01F7/06Electromagnets; Actuators including electromagnets
    • H01F7/08Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16Rectilinearly-movable armatures
    • H01F7/1607Armatures entering the winding

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Relay Circuits (AREA)

Description

Patent-AνSPRUcH :Patent claim:

Hauptstromelektromagnet, bei welchem nach Anziehen des Kernes der gröfsere Theil der Windungen der Magnetspule kurzgeschlossen wird, um während der Arbeitsperiode des Motors den Spannungsabfall im Stromkreis möglichst niedrig zu halten.Main current electromagnet, in which, after the nucleus has been attracted, the greater part of the Coil turns of the solenoid are shorted to during the working period of the motor to keep the voltage drop in the circuit as low as possible.

Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.

Claims (1)

KAISERLICHESIMPERIAL PATENTAMT.PATENT OFFICE. Bei elektrisch betriebenen Hebezeugen und Transportvorrichtungen benutzt man zum Festhalten der Last in einer Schwebelage oder zum raschen Stillsetzen des Triebwerkes Bremsen, welche durch Zugelektrornagnete selbsttätig gelüftet werden, sobald der Antriebsmotor Strom erhält. Die Spule eines solchen Elektromagneten wird zweckmäfsig in den Ankerstromkreis des Antriebsmotors eingeschaltet, wobei sie je nach dem vom Motor gebrauchten Strom und ihrem Widerstand wechselnden Spannungsabfall im Stromkreis hervorruft.Electrically operated hoists and transport devices are used to hold on braking the load in a floating position or to quickly stop the engine, which are automatically ventilated by pulling magnets as soon as the drive motor Receives electricity. The coil of such an electromagnet is expediently in the armature circuit of the drive motor switched on, changing depending on the current used by the motor and its resistance Voltage drop in the circuit. Der Zweck der vorliegenden Erfindung ist es, bei solchen Hauptstromelektromagneten den Spannungsabfall und damit den in Wärme umgesetzten Energieverbrauch der Spule nach dem Anziehen des Magnetkernes, also während der Arbeitsperiode des Motors zu vermindern und an Kupfer zu sparen.The purpose of the present invention is in such main current electromagnets Voltage drop and thus the energy consumption of the coil converted into heat after the Tightening of the magnetic core, so to decrease and during the working period of the motor to save on copper. Zugelektromagnete erfordern zum Anziehen ihres durch Gewicht oder Federdruck u. s. w. belasteten Magnetkernes eine erheblich höhere Amperewindungszahl als zum Festhalten desselben in der angezogenen Lage. Bei Hauptstromelektromagneten ist die Windungszahl der Spule durch den Arbeitsstrom des zugehörigen Motors bedingt. Bisher liefs man nun diesen Strom auch nach dem Anziehen des Kernes durch sämmtliche Windungen der Magnetspule gehen und damit wurde der Energieverbrauch der Spule überflüssig grofs. Bei vorliegendem Magneten dagegen wird der gröfsere Theil der Spulenwindungen nach dem Anziehen des Magnetkernes kurzgeschlossen und es bleiben nur noch so viel Windungen in dem Ankerstromkreis eingeschaltet, als zum Festhalten des Kernes erforderlich sind. Es ist infolge dessen nur im Augenblick des Anziehens für wenige Sekunden der ganze Spulenwiderstand mit grofsem Spannungsabfall im Stromkreis vorhanden, während der Arbeitszeit des Motors dagegen ist, entsprechend der geringeren Windungszahl, der Spulenwiderstand und damit der Spannungsabfall, sowie die erzeugte Wärme bedeutend kleiner.Pulling solenoids require weight or spring pressure and so on in order to attract them. loaded the magnetic core with a significantly higher number of ampere turns than to hold it in place in the attracted position. In the case of main current electromagnets, the number of turns is Coil due to the working current of the associated motor. So far one has now left this one Electricity through all turns of the magnet coil even after the core has been tightened and thus the energy consumption of the coil became superfluous. With the present Magnets, on the other hand, become the greater part of the coil turns after the attraction of the Magnetic core short-circuited and there are only so many turns left in the armature circuit turned on than are necessary to hold the core in place. It is as a result of this only at the moment of tightening the entire coil resistance for a few seconds There is a large voltage drop in the circuit during the working time of the motor on the other hand, according to the lower number of turns, the coil resistance and thus the voltage drop and the generated heat are significantly smaller. Vorliegender Magnet ist jedoch nicht nur im Betrieb wirthschaftlicher, sondern läfst sich auch billiger herstellen. Der nach dem Anziehen des Kernes kurzgeschlossene Theil der Spule bekommt nämlich nur für wenige Sekunden den Motorstrom, kann also erheblich kleineren Querschnitt und geringeres Kupfergewicht erhalten als der andere ständig eingeschaltete Theil. Die damit verbundene Widerstandserhöhung wirkt andererseits als Vorschaltwiderstand für das Anlassen des Motors günstig.The present magnet is not only more economical in operation, it can also be used produce cheaper. That part of the coil which is short-circuited after the core has been drawn in This is because it only receives the motor current for a few seconds, so it can be considerably smaller Cross-section and lower copper weight than the other permanently switched on Part. On the other hand, the associated increase in resistance acts as a series resistor favorable for starting the engine. Die schematische Zeichnung stellt in Fig. 1 die Lage des Kernes c dar, bei welcher der Strom durch sämmtliche Windungen α und b der Magnetspule fliefst, also die zum Anziehen des Kernes erforderliche gesammte Windungszahl eingeschaltet ist. In Fig. 2 ist der Kern c vollständig angezogen, und das mit ihm in Verbindung stehende Contactstück h hat die Spule α an ihren Stromschlufsstücken /und g kurzgeschlossen, so dafs der Strom nur noch durch die Spule b fliefst.The schematic drawing shows in Fig. 1 the position of the core c , in which the current flows through all turns α and b of the magnet coil, so the total number of turns required to attract the core is switched on. In Fig. 2 the core c is fully attracted, and the contact piece h connected to it has short-circuited the coil α at its current circuit pieces / and g , so that the current only flows through the coil b .
DENDAT124931D Active DE124931C (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1086506B (en) * 1952-05-08 1960-08-04 Erich Herion Electromagnetically operated valve with economy circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1086506B (en) * 1952-05-08 1960-08-04 Erich Herion Electromagnetically operated valve with economy circuit

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