DE450560C - An annular magnetic core composed of two or more individual magnetic cores placed one on top of the other in the axial direction - Google Patents

An annular magnetic core composed of two or more individual magnetic cores placed one on top of the other in the axial direction

Info

Publication number
DE450560C
DE450560C DEA45404D DEA0045404D DE450560C DE 450560 C DE450560 C DE 450560C DE A45404 D DEA45404 D DE A45404D DE A0045404 D DEA0045404 D DE A0045404D DE 450560 C DE450560 C DE 450560C
Authority
DE
Germany
Prior art keywords
axial direction
core composed
magnetic core
magnetic
individual
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
DEA45404D
Other languages
German (de)
Inventor
Dr Walther Ehlers
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 DEA45404D priority Critical patent/DE450560C/en
Application granted granted Critical
Publication of DE450560C publication Critical patent/DE450560C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/16Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of sheets

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Soft Magnetic Materials (AREA)

Description

Aus zwei oder mehreren in der Achsrichtung aufeinandergelegten Einzelmagnetkernen zusammengesetzter ringförmiger Magnetkern. An die magnetischen und elektrischen Eigenschaften der Kerne von Induktionsspulen, im besonderen von Pupinspulen, werden je nach dem speziellen Zweck die verschiedenartigsten Anforderungen gestellt.From two or more individual magnetic cores placed one on top of the other in the axial direction composite ring-shaped magnetic core. Magnetic and electric Properties of the cores of induction coils, in particular of Pupin coils the most varied requirements are made depending on the specific purpose.

Es ist bisher üblich gewesen, jeden Magnetkern aus einem einheitlichen Material, entweder in einem Stück oder aus mehreren gleichartigen Stücken herzustellen und je nach den - an die Kerne gestellten Anforderungen entweder die Qualität der Magnetkerne zu modifizieren oder aber unter Verzicht auf die jeweils günstigste Qualität einige Normaltypen zu verwenden. Die jedesmalige Anpassung an die Anforderungen eines Projektes ist schwierig und kostspielig und macht ferner eine Lagerhaltung unmöglich; andererseits bedeutet das Festhalten an einigen Normaltypen oft unnötige Material- und Raumverschwendung. Es ist ferner bekannt, einen Einzelmagnetkern aus aufeinanderfolgenden Schichten von Stoffen verschiedener Permeabilität bzw. elektrischer Leitfähigkeit herzustellen. Die Erfindung betrifft einen ringförmigen Magnetkern, der in bekannter Weise aus zwei oder mehreren in der Achsrichtung aufeinandergelegten Einzelmagnetkernen besteht; erfindungsgemäß weisen mindestens zwei dieser Einzehnagnetkerne unter sich verschiedene magnetische oder elektrische Eigenschaften auf. Die Kombination d_erarti_ger Einzelmä$netkerhe, zu einem Ganzer. ergibt dann k## e i en der sprec die hender hinsichtlich Auswahl sef,#r -einen elektrischen Magnetarid magnetischen. Eigenschaften gestelllten Bedingungen möglichst genau erfüllt. Dadurch ist es möglich, einerseits verschiedene Einzehnagnetkerne mit bestimmten, elektrischen und magnetischen Eigenschaften auf Lager zu legen und andererseits jeden Spezialkern sofort durch Auswahl der geei&7 neten_E_inzehnagnetke_rne,- bedingungsgemäß zusammenzusetzen.__ -Zür @ näheren Erläuterung des Erfindungsgedankens möge folgendes Einzelbeispiel dienen: Die technischen Anforderungen an die magnetischen und elektrischen Eigenschaften von Pupinspulkernen lassen sich im wesentlichen in vier Grundforderungen zusammenfassen: a) Permeabilität, b) Stabilität, c) Wirbelstromv erluste, d) Hystereseverluste.It has hitherto been customary to produce each magnetic core from a uniform material, either in one piece or from several similar pieces and, depending on the requirements placed on the cores, either to modify the quality of the magnetic cores or to renounce the most favorable quality in each case Use normal types. The every time adaptation to the requirements of a project is difficult and expensive and also makes storage impossible; on the other hand, sticking to some normal types often means unnecessary waste of material and space. It is also known to produce a single magnetic core from successive layers of substances of different permeability or electrical conductivity. The invention relates to an annular magnetic core which, in a known manner, consists of two or more individual magnetic cores placed one on top of the other in the axial direction; According to the invention, at least two of these single magnetic cores have different magnetic or electrical properties. The combination of these special individuals into a whole. then results in k ## one of the speakers regarding selection sef, # r - an electrical magnetarid magnetic. Properties set conditions met as exactly as possible. This makes it possible, on the one hand, to put various single magnetic cores with certain electrical and magnetic properties in stock and, on the other hand , to assemble each special core immediately by selecting the appropriate ones - according to the conditions Requirements for the magnetic and electrical properties of Pupin coil cores can essentially be summarized in four basic requirements: a) permeability, b) stability, c) eddy current losses, d) hysteresis losses.

Es werden z. B. verlangt: a) Permeabilität M möglichst groß, b) Stabilität: (Änderung von u bei Gleichstrombelastung bis o,i Amp.) kleiner als i Prozent, c) Wirbelstromverluste in Verlustmaß: TV kleiner als 9 2/Henry, d) Hy stereseverluste in Verlustmaß : h kleiner als 5o . Ohm; HenryiAinpereNvindungen,cm. Zur Befriedigung dieser Bedingungen mögen folgende zwei Gruppen von EinzelmagnetkeTnen zur Verfügung stehen: i. Harter Stahldraht 10o, =- i Prozent, TV = 20, lt - 150, 2. Massekern @. = 35, _ + i Prozent, IV = 5, h = io. Setzt man gemäß der Abb. i dien Kern aus vier ringförmigen Scheiben gleicher Stärke zusammen, von denen eine Scheibe a der Gruppe i und drei Scheiben b der Gruppe 2 entnommen werden, so erhält man für den zusammengesetzten Kern folgende Daten: M =1/4 (1 - 100 + 3 # 35) = 51, . - + 0;025 Prozent, W=1/4(=20+3-5)=8,8, h=l114(I'I50+3#i0)-a5. Die hier erzielte wirksame Permeabilität ,u = 51 kann unter Innehaltung der Grenzen von Stabilität und Verlusten praktisch bei keinem der bisher bekannten Verfahren erzielt werden. There are z. B. demands: a) permeability M as large as possible, b) stability: (Change in u with direct current load up to o, i Amp.) Less than i percent, c) eddy current losses in loss measure: TV less than 9 2 / Henry, d) hysteresis losses in loss measure: h less than 5o. Ohm; Henryi AinpereNvindungen, cm. To satisfy these conditions, the following two groups of individual magnetic keys may be available: i. Hard steel wire 10o, = - i percent, TV = 20, lt - 150, 2nd mass core @. = 35, _ + i percent, IV = 5, h = io. If, as shown in Fig. I, the core is assembled from four ring-shaped disks of the same thickness, from which one disk a from group i and three disks b from group 2 are taken, the following data are obtained for the assembled core: M = 1/4 (1 - 10 0 + 3 # 35) = 51,. - + 0; 025 percent, W = 1/4 (= 20 + 3-5) = 8.8, h = l114 (I'I50 + 3 # i0) -a5. The effective permeability achieved here , u = 51 can while respecting the limits of stability and losses practically at none of the previously known methods achieved will.

Claims (1)

PATENTANSPRUCH: Aus zwei oder mehreren in der Achsrichtung aufeinandergelegten Einzelmagnetkernen zusammengesetzter ringförmiger Magnetkern, dadurch gekennzeichnet, daß mindestens zwei der Einzelmagnetkerne unter sich verschiedene magnetische oder elektrische Eigenschaften aufweisen. Claim: An annular magnetic core composed of two or more individual magnetic cores placed one on top of the other in the axial direction, characterized in that at least two of the individual magnetic cores have different magnetic or electrical properties.
DEA45404D 1925-07-07 1925-07-07 An annular magnetic core composed of two or more individual magnetic cores placed one on top of the other in the axial direction Expired DE450560C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA45404D DE450560C (en) 1925-07-07 1925-07-07 An annular magnetic core composed of two or more individual magnetic cores placed one on top of the other in the axial direction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA45404D DE450560C (en) 1925-07-07 1925-07-07 An annular magnetic core composed of two or more individual magnetic cores placed one on top of the other in the axial direction

Publications (1)

Publication Number Publication Date
DE450560C true DE450560C (en) 1927-10-06

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEA45404D Expired DE450560C (en) 1925-07-07 1925-07-07 An annular magnetic core composed of two or more individual magnetic cores placed one on top of the other in the axial direction

Country Status (1)

Country Link
DE (1) DE450560C (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE938201C (en) * 1952-08-19 1956-01-26 Adolf Hueser Single and multi-phase transformer
DE973822C (en) * 1952-07-10 1960-06-15 Philips Nv Magnetic core and process for its manufacture
DE975253C (en) * 1939-05-06 1961-10-19 Siemens Ag Transformer core
DE1244944B (en) * 1963-04-06 1967-07-20 C H F Mueller G M B H Sheath core built from sheet metal for a high voltage transformer
DE1274730B (en) * 1959-06-20 1968-08-08 Commissariat Energie Atomique Magnetic variometer
DE1291827B (en) * 1962-08-13 1969-04-03 Inducto Therm Corp Frequency tripler with three single-phase transformers
DE3110993A1 (en) * 1981-03-20 1982-09-30 Forschungsinstitut Prof. Dr.-Ing.habil., Dr.phil.nat. Karl Otto Lehmann, Nachf. GmbH & Cie, 7570 Baden-Baden Laminated core for inductive components

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE975253C (en) * 1939-05-06 1961-10-19 Siemens Ag Transformer core
DE973822C (en) * 1952-07-10 1960-06-15 Philips Nv Magnetic core and process for its manufacture
DE938201C (en) * 1952-08-19 1956-01-26 Adolf Hueser Single and multi-phase transformer
DE1274730B (en) * 1959-06-20 1968-08-08 Commissariat Energie Atomique Magnetic variometer
DE1291827B (en) * 1962-08-13 1969-04-03 Inducto Therm Corp Frequency tripler with three single-phase transformers
DE1244944B (en) * 1963-04-06 1967-07-20 C H F Mueller G M B H Sheath core built from sheet metal for a high voltage transformer
DE3110993A1 (en) * 1981-03-20 1982-09-30 Forschungsinstitut Prof. Dr.-Ing.habil., Dr.phil.nat. Karl Otto Lehmann, Nachf. GmbH & Cie, 7570 Baden-Baden Laminated core for inductive components

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