DE463541C - Electromagnetic apparatus with a core made of magnetic material, in particular relays, display devices, self-induction coils or the like for direct current loading with superimposed alternating or fluctuating currents - Google Patents

Electromagnetic apparatus with a core made of magnetic material, in particular relays, display devices, self-induction coils or the like for direct current loading with superimposed alternating or fluctuating currents

Info

Publication number
DE463541C
DE463541C DES73854D DES0073854D DE463541C DE 463541 C DE463541 C DE 463541C DE S73854 D DES73854 D DE S73854D DE S0073854 D DES0073854 D DE S0073854D DE 463541 C DE463541 C DE 463541C
Authority
DE
Germany
Prior art keywords
direct current
self
magnetic material
core made
display devices
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
DES73854D
Other languages
German (de)
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.)
Siemens Brothers and Co Ltd
Original Assignee
Siemens Brothers and Co Ltd
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 Siemens Brothers and Co Ltd filed Critical Siemens Brothers and Co Ltd
Application granted granted Critical
Publication of DE463541C publication Critical patent/DE463541C/en
Expired legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C13SUGAR INDUSTRY
    • C13BPRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B10/00Production of sugar juices
    • C13B10/02Expressing juice from sugar cane or similar material, e.g. sorghum saccharatum
    • C13B10/06Sugar-cane crushers
    • 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
    • H01F7/081Magnetic constructions

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  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Soft Magnetic Materials (AREA)

Description

Elektromagnetischer Apparat mit Kern aus magnetischem material, insbesondere Relais, Anzeigevorrichtung, Selbstinduktionsspule o. dgl. für Gleichstrombelastung mit überlagerten Wechsel- oder fluktuierenden Strömen Die Erfindung bezieht sich auf elektromagnetische Apparate mit Kern aus magnetischem 'Material und im besonderen auf Relais, Anzeigevorrichtungen, Selbstinduktionsspulen o. dgl. für Gleichstrombelastung mit überlagerten Wechsel- oder fluktuierenden Strömen und bezweckt, die Impedanz derartiger Apparate für Wechsel- oder fluktuierenden Strom zu erhöhen.Electromagnetic apparatus with a core made of magnetic material, in particular Relay, display device, self-induction coil or the like for direct current loading with superimposed alternating or fluctuating currents The invention relates to electromagnetic apparatus with a core made of magnetic material and in particular on relays, display devices, self-induction coils or the like for direct current loading with superimposed alternating or fluctuating currents and the purpose of the impedance to increase such apparatus for alternating or fluctuating current.

Der beschränkte Wicklungsraum, der in der Praxis für diese Apparate zur Verfügung steht, setzt der Steigerung der Impedanz durch Vermehrung der Wicklungszahl eine Grenze. Ein brauchbares Mittel für die Steigerung der Impedanz würde auch die Anwendung eines massiven Kerns von besonders hochwertigen magnetischen Eigenschaften sein; damit würde aber eine wesentliche Erhöhung der Herstellungskosten verbunden sein.The limited winding space required in practice for this apparatus is available, increases the impedance by increasing the number of windings a border. A useful means of increasing the impedance would also be the Use of a solid core with particularly high-quality magnetic properties be; this would, however, result in a substantial increase in manufacturing costs be.

Weiterhin ist der massive Kern, wie er in Relais o. dgl. gebraucht wird, einer hohen Impedanz nicht günstig, weil Wirbelströme erzeugt werden. Ein durchgängig lamellierter Kern oder ähnliche in der Wechselstromtechnik übliche Bauarten, z. B. übereinandergeschobene geschlitzte Hülsen oder Kerne aus zusammengepreßtem Pulver, sind ungeeignet sowohl aus Gründen der Herstellung als auch aus solchen der Leistung.Furthermore, the massive core, as used in relays or the like is not favorable to a high impedance because eddy currents are generated. A Continuously laminated core or similar designs common in AC technology, z. B. slotted sleeves or cores pushed together from compressed Powders, are unsuitable for both manufacturing and manufacturing reasons performance.

Bei der vorliegenden Erfindung wird ein massiver Kern vorgesehen, wie er bei Relais o. dgl. für Gleichstrombelastung üblich ist, aber dieser Kern wird erfindungsgemäß mit einer oder mehreren übereinanderliegenden längsgeschlitzten Hülsen aus magnetischem Material umgeben. Die Hülsen müssen zur möglichst vollständigen Unterdrückung der Wirbelströme, welche den effektiven Wechselstromfluß herabdrücken und sein Eindringen vermindern, dünn sein.In the present invention, a solid core is provided, as it is common with relays or the like for direct current loading, but this core is according to the invention with one or more superimposed longitudinal slits Sleeves made of magnetic material surround. The sleeves must be as complete as possible Suppression of eddy currents, which suppress the effective alternating current flow and diminish its penetration, be thin.

Sie müssen auch aus einem Material von hohem spezifischen Widerstand bestehen, wie ihn z. B. die bei Umformern für Kraftleistungen bekannten Silicium-Eisen-Legierungen haben. Eine einzige Hülse von einer Dicke von o,38 mm aus einer Silicium-Eisen-Legierung, wie sie für die Kerne -von Kraftumformern verwendet wird, erzeugt, wie festgestellt wurde, eine vergrößerte Impedanz; eine sehr weitgehende Verbesserung hat man festgestellt, wenn man drei Hülsen von o,3 mm Dicke übereinander verwendete, die aus einer Eisen-Nickel-Legierung mit einem \Ticlcelgehalt von 360!" bestanden.They must also be made of a material of high resistivity exist, as z. B. the silicon-iron alloys known from converters for power outputs to have. A single sleeve, 0.38 mm thick, made of a silicon-iron alloy, as it is used for the cores of power converters, generated as stated became, an increased impedance; one very far improvement has been found when using three sleeves 0.3 mm thick, one on top of the other, which consisted of an iron-nickel alloy with a \ Ticlcel content of 360! ".

Eine Hülse aus demselben Material wie der Kern selbst vermehrt sogar, wie festgestellt wurde, die Größe der Impedanz, vorausgesetzt, daB sie längsgeschli_tztist.A sleeve made of the same material as the core itself even increases, as has been established, the magnitude of the impedance, provided that it is longitudinally closed.

Die gewöhnlich vorhandene Oxydkruste auf der inneren Fläche der Hülse genügt, um dem Durchgang der Wirbelströme-von der Hülse zu denn Kern Widerstand zu listen. Eine dünne Papierschicht kann jedoch azwi-_ sehen die Hülse und den Kern und zwischen die übereinanderliegenden Hülsen gelegt werden.The oxide scale usually present on the inner surface of the sleeve sufficient to resist the passage of eddy currents from the sleeve to the core to list. A thin layer of paper, however, can azwi-_ see the sleeve and the core and placed between the superimposed sleeves.

Die gewöhnliche Größe des eigentlichen Relaiskernes kann vermindert werden,- so daß nach Anbrsngung der Hülse der äußere Durchmesser der gewöhnliche bleibt, oder in einigen Fällen kann die gewöhnliche Größe beibehalten werden, wobei jedoch der für die Wicklung nutzbare Raum vermindert wird.The usual size of the actual relay core can be reduced - so that after the sleeve has been attached, the outer diameter is the usual one remains, or in some cases can be kept the usual size, with however, the space usable for the winding is reduced.

Da der Wechselstromfluß hauptsächlich durch die Hülse oder Hülsen geführt und die Menge des in der oder in den Hülsen enthaltenen Materials klein ist, so ist es möglich, ein Material von höchster Qualität hinsichtlich der Permeabilität und/oder des spezifischen Widerstandes zu verwenden, ohne die Kosten wesentlich zu erhöhen.Since the alternating current flow mainly through the sleeve or sleeves out and the amount of material contained in or in the sleeves is small is so it is possible to use a material of the highest quality in terms of permeability and / or resistivity without significantly increasing the cost to increase.

Claims (1)

PATENTANSPRUCH: Elektromagnetischer Apparat mit Kern _ aus magnetischem Material, insbesondere Relais, Anzeigevorrichtung, Selbstinduktionsspule o. dgl. für Gleichstrombelastung mit überlagerten Wechsel- oder fluktuierenden Strömen, dadurch gekennzeichnet, daß der Kern aus einer von einer oder mehreren längsgeschlitzten Hülsen umgebenen massiven Seele besteht.PATENT CLAIM: Electromagnetic apparatus with a core made of magnetic Material, in particular relay, display device, self-induction coil or the like. for direct current loads with superimposed alternating or fluctuating currents, characterized in that the core consists of one of one or more longitudinally slotted Sleeves surrounded massive soul consists.
DES73854D 1925-03-27 1926-03-27 Electromagnetic apparatus with a core made of magnetic material, in particular relays, display devices, self-induction coils or the like for direct current loading with superimposed alternating or fluctuating currents Expired DE463541C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB463541X 1925-03-27

Publications (1)

Publication Number Publication Date
DE463541C true DE463541C (en) 1928-07-30

Family

ID=10440912

Family Applications (1)

Application Number Title Priority Date Filing Date
DES73854D Expired DE463541C (en) 1925-03-27 1926-03-27 Electromagnetic apparatus with a core made of magnetic material, in particular relays, display devices, self-induction coils or the like for direct current loading with superimposed alternating or fluctuating currents

Country Status (2)

Country Link
DE (1) DE463541C (en)
FR (1) FR463541A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2831214C2 (en) * 1978-07-15 1984-03-08 Buckau-Walther AG, 4048 Grevenbroich Roller for a sugar cane mill

Also Published As

Publication number Publication date
FR463541A (en) 1914-02-25

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