DE717342C - Choke coil with iron core for field weakening of series motors - Google Patents

Choke coil with iron core for field weakening of series motors

Info

Publication number
DE717342C
DE717342C DEA87171D DEA0087171D DE717342C DE 717342 C DE717342 C DE 717342C DE A87171 D DEA87171 D DE A87171D DE A0087171 D DEA0087171 D DE A0087171D DE 717342 C DE717342 C DE 717342C
Authority
DE
Germany
Prior art keywords
iron core
choke coil
field weakening
iron
series motors
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
Application number
DEA87171D
Other languages
German (de)
Inventor
Dr-Ing Karl Blaufuss
Dipl-Ing Ferdinand Turber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AEG AG
Original Assignee
AEG AG
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 AEG AG filed Critical AEG AG
Priority to DEA87171D priority Critical patent/DE717342C/en
Application granted granted Critical
Publication of DE717342C publication Critical patent/DE717342C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F37/00—Fixed inductances not covered by group H01F17/00

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)

Description

Drosselspule mit Eisenkern zur Feldschwächung von Reihenschlußmotoren Bei Gleichstromreihensclilußmotoren, insbesondere für Fahrzeugantriebe, ist es üblich, zum Zwecke der Drehzahlsteigerung das Erregerfeld durch Parallelschalten eines Widerstandes zu schwächen. Als sog. Feldschwächungswiderstand wird eine Drosselspule mit Eisenkern benutzt.Choke coil with iron core for field weakening of series motors In the case of direct current series motors, especially for vehicle drives, it is common to for the purpose of increasing the speed, the excitation field by connecting a resistor in parallel to weaken. A choke coil with an iron core is used as a so-called field weakening resistor used.

Aufgabe der Erfindung ist es, eine besonders einfache, leichte und billige Drosselspule mit Eisenkern zur Feldschwächung von Reihenschlußmotoren zu schaffen, deren Induktivität zur Erzielung einer geniigenden Schutzwirkung über den ganzen Arbeitsbereich praktisch konstant bleibt.The object of the invention is to provide a particularly simple, easy and cheap choke coil with iron core for field weakening of series motors create whose inductance to achieve a sufficient protective effect the entire working area remains practically constant.

Erfindungsgemäß besteht der Eisenkern aus spiralig aufgewickeltem Eisenband und ferner aus zwei mit einem oder mehreren radialen Schlitzen versehenen, aus lamellierten Eisenblechen hergestellten Scheiben, von denen jede an einer Stirnseite des Wickelkörpers aus Eisenband anliegt.According to the invention, the iron core consists of a spiral wound Iron band and also of two provided with one or more radial slots, disks made of laminated iron sheets, each on one face of the bobbin made of iron tape is applied.

In der Zeichnung ist ein Ausführungsbeispiel der Drosselspule gemäß der Erfindung dargestellt. Abb. i zeigt einen Schnitt durch die Längsachse und Abb.2 einen Schnitt in senkrechter Richtung zur Längsachse.In the drawing, an embodiment of the choke coil is shown in FIG of the invention shown. Fig. I shows a section through the longitudinal axis and Fig.2 a section in the direction perpendicular to the longitudinal axis.

Die Drosselspule mit Eisenkern ist als Flachspule gebaut. Sie setzt sich im wesentlichen aus dem Kern i, der Wicklung 2 und den beiden Deckblechen 3 zusammen. Der Kern i besteht aus spiralig aufgewickeltem Eisenband, dessen einzelne Lagen voneinander isoliert sind. Um den Kern i ist, von diesem durch ein Isolierrohr q. getrennt, die Spule 2 gewickelt, die aus Kupferband besteht. Für den magnetischen Rückschluß sind die beiden aus lamellierten Eisenblechen hergestellten Scheiben 3 vorgesehen, von denen jede zur Unterdrückung der Wirbelströme mit einem oder mehreren radialen Schlitzen 5' versehen ist. Von der Kupferbandwickluilg 2 sind die Blechscheiben 3 durch die Isolierscheiben getrennt. Durch die beiden Druckscheiben ; aus Isolierstoff, beispielsweise Hartgewebe, und durch den isolierten Bolzen S wird der Drosselkörper zusammengehalten. Der bei diesem Aufbau vorhandene, verhältnismäßig große Luftspalt g sorgt dafür, daß die Indulctivität der Drossel über den ganzen Arbeitsbereich praktisch gleichbleibt. I=r verhindert also. daß eine unangebrachte Sättigung rintreten kann, die die Induktivität so weit herabsetzt, daß praktisch keine Schutzwirkung mehr auftritt.The choke coil with iron core is built as a flat coil. She sets consists essentially of the core i, the winding 2 and the two cover sheets 3 together. The core i consists of a spiral wound iron band, its individual Layers are isolated from each other. Around the core i is from this through an insulating tube q. separated, wound the coil 2, which is made of copper tape. For the magnetic The conclusion is drawn from the two panes made from laminated iron sheets 3 provided, each of which to suppress the eddy currents with one or more radial slots 5 'is provided. From the Kupferbandwickluilg 2 are the sheet metal disks 3 separated by the insulating washers. Through the two pressure washers; made of insulating material, for example hard tissue, and through the isolated bolt S, the throttle body held together. The relatively large air gap present in this structure g ensures that the inductance of the throttle over the entire working range remains practically the same. So I = r prevents. that an inappropriate satiety step into it can, which reduces the inductance so far that practically no protective effect occurs more.

Claims (1)

PATE' 1TANSP1tUl:11 Drosselspule mit Eisenkern zur Feldschwächung von Reihenschlußmotoren, dadurch gekennzeichnet, daß der Eisenkern aus spiralig aufgewickeltem Eisenband und ferner aus zwei mit einem oder mehreren radialen Schlitzen versehenen, aus lamellierten Eisenblechen hergestellten Scheiben (3) besteht, von denen jede an einer Stirnseite des Wickelkörpers (i) aus Eisenband anliegt. PATE ' 1TANSP1tUl: 11 Choke coil with iron core for weakening the field of series motors, characterized in that the iron core consists of spirally wound iron strip and also of two disks (3) made of laminated iron sheets and provided with one or more radial slots, each of which is attached to one Front side of the winding body (i) made of iron tape rests.
DEA87171D 1938-06-17 1938-06-17 Choke coil with iron core for field weakening of series motors Expired DE717342C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA87171D DE717342C (en) 1938-06-17 1938-06-17 Choke coil with iron core for field weakening of series motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA87171D DE717342C (en) 1938-06-17 1938-06-17 Choke coil with iron core for field weakening of series motors

Publications (1)

Publication Number Publication Date
DE717342C true DE717342C (en) 1942-02-12

Family

ID=6949985

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA87171D Expired DE717342C (en) 1938-06-17 1938-06-17 Choke coil with iron core for field weakening of series motors

Country Status (1)

Country Link
DE (1) DE717342C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE937185C (en) * 1941-02-12 1955-12-29 Siemens Ag Switching arrangement for alternating current interruption devices
DE1006511B (en) * 1952-12-12 1957-04-18 Licentia Gmbh Switching chokes for mechanical converters or the like.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE937185C (en) * 1941-02-12 1955-12-29 Siemens Ag Switching arrangement for alternating current interruption devices
DE1006511B (en) * 1952-12-12 1957-04-18 Licentia Gmbh Switching chokes for mechanical converters or the like.

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