DE727240C - High-frequency iron core, consisting of a few turns of wound iron wire strand or wound iron tape - Google Patents

High-frequency iron core, consisting of a few turns of wound iron wire strand or wound iron tape

Info

Publication number
DE727240C
DE727240C DET52102D DET0052102D DE727240C DE 727240 C DE727240 C DE 727240C DE T52102 D DET52102 D DE T52102D DE T0052102 D DET0052102 D DE T0052102D DE 727240 C DE727240 C DE 727240C
Authority
DE
Germany
Prior art keywords
iron
wound iron
wound
frequency
tape
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
DET52102D
Other languages
German (de)
Inventor
Dr-Ing Fritz Bergtold
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.)
Telefunken AG
Original Assignee
Telefunken 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 Telefunken AG filed Critical Telefunken AG
Priority to DET52102D priority Critical patent/DE727240C/en
Application granted granted Critical
Publication of DE727240C publication Critical patent/DE727240C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00Fixed inductances of the signal type 
    • H01F17/04Fixed inductances of the signal type  with magnetic core

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)

Description

Hochfrequenzeisenkern, bestehend aus wenig Windungen aufgewickelter Eisendrahtlitze oder aufgewickelten Eisenbandes lIoclifrequenzei.enkerne aus diinnen Dräh- ten haben gegenüber Massenkernen den Vor- teil einer größeren Pernieabilitä t. Es ist be- kannt, diese Eisendrähte zu einer Litze zti verflechten, itni die schwierige Handhabung oll dünnen Drähten zu erleichtern. Durch die Veriiechtung wird aber auch erreicht. daß die llagtletfel(lcr sich trotz der kapazitiv 5eschlossenen Wirbelstromwege über den ge- samten Ouerschnitt in ähnliclier@@'ei:e gleich- mäßig verteilen wie die Hochfrequenzströ me in den Hochfrequenzlitzen. Infolge der auf den einzelnen nuerschnitten des Kernes ver- laufenden konzentrischen ringförmigen Wir- belstroinkreise wird nämlich ohne -lnwen- clung der Verliechtung das Magnetfeld im Inneren des herbes geschwächt, da die Wir- belströme ein Gegenfeld verursachen. Ein zu- sätzlicher Vorteil der '-erflechtung besteht deshall) darin, daß der magnetische Wider- stand gegenüber Kernen mit parallel verlau- fenden Drähten verringert wird, also die wirk- same Permeabilität erhöht wird. Gleichzeitig -werden durch die gleichinälligere Verteilung (les 'Ma giietfeldes auf die 7?ilizelclriilite die Verluste herabgesetzt, denn die Verluste stei- gen finit einer älter eins liegenclcn Potenz der Vclddichte an. Bei Verwendmig genügend dünner Drähte liegen die Verluste in der gleichen Gröl'lenordnung -wie bei \lassekernen. Es ist bekannt, F.isenclr:ilit oder Risendralit- litze zu ringförmigen Spulenkernen aufzu- -vickeln. Die Wicklung von 1?isendr:ilitlitren kann hierbei nach den Gesichtspunkten, die für die Stromwicklungen der IIoclifrccIite»z- spttlen gelten, dnrcligefülirt -werden. Nach clci- Erfindung -werden die beide» l:n- rleil eine. aus l:i#eildi-:ilitlitze oder Eisenband ztt -wenigen \\-itid»»gen Kerne. derart miteinander verhim(len, dal.l ein fern)- magnetischer Sc111111.1 entstellt. 711 (lic#sc#»i @-wech genügt e. unter L'nlst:ittclc#n. wenn :ich die 1;11<1e11 mit :,@rc@Llc#» 1@ l;irlte» ni@iglic lia »alle @tyetüü>c#raeliun. Dadurch, daß nielirere I#.isen-win@tu»;#ell hintereinandergeschaltet sind und folglich eine Verbindungsstelle jeweils auf mehrere Windungen entfallt, stört der niagneti:che L'bergangs-viderstand. der an clc#r Verbin- clungsstelle auftreten kann. lange nicht so :ehr wie an Eisenkernen, die lediglich aus einer einzigen Windung bestellen. Der Erhtlclutlgsgedalll:e ist durch das in der Abbildung dargestellte Ileia@iel veran- schaulicht. Dort besteht der 1?i#e»kern I:. der mit der Stromwicklung I1' verkettet ist. aus einer Eisenlitzenwicklu»g. deren beide Enden an der Verbinclungsstelle I' z. 1,1. mit- einander ver.ch-veitlt sind. Die 1?rfindu»g ist bei l:i:e»lcc#ruc#n. Flic lediglich aus aufgewickeltem dünnem Ei@en- draht bestehen. wie sie bei 1Todulat@at@saro@- seln und Freque»zvervielfachern Üblich sind. nicht anwendbar. da bei clie#en Kernen eitle Verbindun- der beiden Enden we@-'en der `rollen Windungszahl praktisch nicht. mehr au:inacht. Wenn inan dagr@=en den Kerti aus twe»i@@en, z. D. zehn Windun;-en aus I:i:eti- drahtlitze oder sehr dünnem 1#.i:eiilt:»ic1 oder :ltis verflochtenen 1?i.e»llündern aufbaut, macht sich eine @`rrringeru»g (1e, ni:i@#lieii- :clien Widerstandes bemerkbar, und zwar 11111 "1 mehr, je kleiner die Winclu»g:zahl ist. Die I@rtin<lu»g ist auch anwendbar, -vc#tttl cler I?i:enkern durch einen z»s;ltzlil'lien F.lek- tronla@me#ten in bekanntest' Weise zur @'cr:itulc#- ru»g der Induktivität der llociltre@lue»zsl@ule v@»-magneti.iert wird. High-frequency iron core, consisting of a few turns of wound iron wire strand or wound iron tape lIoclifrequenzei. cores made of thin wire have the advantage over mass cores part of a greater perniciousness. It is be- knows, these iron wires to a strand zti intertwine, itni the difficult handling oll thin wires to facilitate. By the veriiechtung is also achieved. that the llagtletfel (lcr in spite of the capacitive 5 closed eddy current paths over the velvet cross-section in a similar @@ 'egg: e equal- distribute moderately like the high frequency currents in the high-frequency strands. As a result of the the individual sections of the core running concentric annular we- Belstroinkkreis is namely without -lnwen- clung of belittling the magnetic field in the Weakened inside the bitter, since the evil currents cause an opposing field. A to- there is an additional advantage of the interlacing deshall) in that the magnetic resistance faced cores with parallel ends of the wires is reduced, i.e. the effective same permeability is increased. Simultaneously -become due to the more equal distribution (les' Ma giietfeldes on the 7? ilizelclriilite the Losses are reduced because the losses increase with a finite power of the Vcld density on. Sufficient if used The losses are in the thinner wires same order of magnitude -as with \ lassekernen. It is known F.isenclr: ilit or Risendralit- to form ring-shaped coil cores -vickeln. The winding of 1? Isendr: ilitlitren can here according to the points of view that for the current windings of the IIoclifrccIite »z- subsequently apply, must be filled-in. According to the clci invention, the two »l: n- rleil a. made of l: i # eildi-: ilitlitze or iron tape ztt -few \\ - itid »» gen Cores. so mingle with each other (len, dal.l a distant) - magnetic Sc111111.1 defaced. 711 (lic # sc # »i @ -change is sufficient e. under L'nlst: ittclc # n. if I the 1; 11 <1e11 with:, @ rc @ Llc # »1 @ l; irlte» ni @ iglic lia »alle @ tyetüü> c # raeliun. Because nielirere I#.isen-win@tu »; # ell are connected in series and consequently one connection point to several If there are no turns, the niagneti: che disturbs The transition resistance. the to clc # r connecting clungsstelle can occur. not like that for a long time: honest like iron cores that only consist of one order a single turn. The purchase price is due to the in Ileia @ iel shown in the figure vividly. There is the 1? I # e »kern I :. which is linked to the current winding I1 '. from an iron strand winding. their both Ends at Verbinclungsstelle I 'z. 1.1. with- are ver.ch-veitlt each other. The first finding is with l: i: e »lcc # ruc # n. Flic only made of coiled thin egg @ en- wire exist. as described at 1Todulat @ at @ saro @ - Seln and frequency multipliers are common. not applicable. because the kernels are vain Connect the two ends we @ - 'en `` The number of turns practically does not roll. more au: inacht. If inan dagr @ = en the Kerti twe »i @@ en, z. D. ten windun; -en from I: i: eti- stranded wire or very thin 1 # .i: hurry: »ic1 or : ltis intertwined 1? he »llündern builds up, makes a @ `rrringeru» g (1e , ni: i @ # lieii- : The resistance is noticeable, namely 11111 "1 more, the smaller the Winclu» g: number is. The I @ rtin <lu »g is also applicable, -vc # tttl The I? i: kernel by an additional; ltzlil'lien F.lek- tronla @ me # ten in the most famous 'way to @' cr: itulc # - ru »g the inductance of the llociltre @ lue» zsl @ ule v @ »- is magnetized.

Claims (1)

PATt;NTANSPRUCFi: - IIocltfreclue»zei#e»ker». 1>estelu-tl@l all, we»ige»\\'inlun@renattfgelwici;c@ln#r I#:i:u»- @Ir:tlltlitze @ulc#r a»fgelwickc#ltt#» I:iseail@.ni- fles, @l:ulurrh @eke»»zc#icl»ut. @lal.l @üe i@c#i_ @lc» 1#aidc» @lie#er \\1c-<1»» @ler;crt 1111,e111 ;Luder wcrl@tttt@lc#tt sind, @lal.l eilt ic#rr@@ttta:t@# ti:clier @cltl»Ll ettt@teht.
PATt; NTANSPRUCFi: - IIocltfreclue »zei # e» ker ». 1> estelu-tl @ l all, we »ige» \\ 'inlun @ renattfgelwici; c @ ln # r I #: i: u »- @Ir: tlltlitze @ ulc # ra »fgelwickc # ltt #» I: iseail @ .ni- fles, @l: ulurrh @eke »» zc # icl »ut. @ lal.l @ üe i @ c # i_ @lc »1 # aidc» @ lie # er \\ 1c- <1 »» @ler; crt 1111, e111 ; Luder are wcrl @ tttt @ lc # tt, @ lal.l rushes ic # rr @@ ttta: t @ # ti: clier @cltl »Ll ettt @ teht.
DET52102D 1939-04-13 1939-04-13 High-frequency iron core, consisting of a few turns of wound iron wire strand or wound iron tape Expired DE727240C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DET52102D DE727240C (en) 1939-04-13 1939-04-13 High-frequency iron core, consisting of a few turns of wound iron wire strand or wound iron tape

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET52102D DE727240C (en) 1939-04-13 1939-04-13 High-frequency iron core, consisting of a few turns of wound iron wire strand or wound iron tape

Publications (1)

Publication Number Publication Date
DE727240C true DE727240C (en) 1943-05-31

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Family Applications (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0018484A1 (en) * 1979-05-04 1980-11-12 International Business Machines Corporation Electromagnetic circuit with multiple-winding magnetic yoke
US5233324A (en) * 1992-03-26 1993-08-03 Eaton Corporation Current transformer for sensing current in an electrical conductor
US5418514A (en) * 1984-10-12 1995-05-23 Smith; Dayle R. AC current sensor and method of making same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0018484A1 (en) * 1979-05-04 1980-11-12 International Business Machines Corporation Electromagnetic circuit with multiple-winding magnetic yoke
US5418514A (en) * 1984-10-12 1995-05-23 Smith; Dayle R. AC current sensor and method of making same
US5233324A (en) * 1992-03-26 1993-08-03 Eaton Corporation Current transformer for sensing current in an electrical conductor

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