DE3232025A1 - Annular core for electrical annular coils and transformers - Google Patents

Annular core for electrical annular coils and transformers

Info

Publication number
DE3232025A1
DE3232025A1 DE19823232025 DE3232025A DE3232025A1 DE 3232025 A1 DE3232025 A1 DE 3232025A1 DE 19823232025 DE19823232025 DE 19823232025 DE 3232025 A DE3232025 A DE 3232025A DE 3232025 A1 DE3232025 A1 DE 3232025A1
Authority
DE
Germany
Prior art keywords
toroidal core
toroidal
core
annular
winding
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.)
Withdrawn
Application number
DE19823232025
Other languages
German (de)
Inventor
Hans-Werner 8411 Wenzenbach Schulz
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 AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Priority to DE19823232025 priority Critical patent/DE3232025A1/en
Publication of DE3232025A1 publication Critical patent/DE3232025A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F30/00Fixed transformers not covered by group H01F19/00
    • H01F30/06Fixed transformers not covered by group H01F19/00 characterised by the structure
    • H01F30/16Toroidal transformers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/24Magnetic cores
    • H01F27/255Magnetic cores made from particles

Landscapes

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

Abstract

An annular core (7), which is suitable for automatic winding devices and has an approximately rectangular cross-section, and which is curved in the shape of an annulus in the annular-core hole region in the direction towards the centre axis (AA') of the annular core. <IMAGE>

Description

Rinkern fti.r elektrische Ringspulen und ÜbertragerRinkern fti.r electrical toroidal coils and transformers

3ie Erfindung betrifft einen Ringkern z.B. aus Keramik oder Ferrit für elektrische Ringkernspulen und Ringkern Übertrager, der wickelautomatengerecht sein soll und einen zum Wickeln optimalen, zumindest angenähert rechteckförmigen Querschnitt haben soll.The invention relates to a toroidal core made from ceramic or ferrite, for example for electrical toroidal coils and toroidal core transformers, suitable for automatic winding machines should be and one that is optimal for winding, at least approximately rectangular Should have a cross-section.

Die üblichen Ringkerne besitzten - wie dies in Fig. 1 und 2 dargestellt ist - rechteckörmigen, in 3ereich der Kanten abgerundeten Querschnitt. Die Induktivität der mit diesen Rinkernen und insbesondere mit den in rig, 1 und 2 mit 1 bezeichneten Ferritringkernen ausgerüsteten Ringspulen und Ubertrager läßt sich vergrößern, wenn bei an sich gleichem Kernquerschnitt die Windungszahl der aus den Ringkern 1 aufgewickelten Wicklungen 4 erhöht wird.The usual toroidal cores have - as shown in FIGS. 1 and 2 is - rectangular cross-section rounded off in the 3 area of the edges. The inductance the one with these cores and in particular with those denoted by 1 in rig, 1 and 2 Ferrite ring cores equipped toroidal coils and transformers can be enlarged if with the same core cross-section, the number of turns wound from the toroidal core 1 Windings 4 is increased.

Zu beachten ist dabei, daß die auch durch das Kern- und Wickelmaterial und durch die geometrischen Abmessungen der Ringkerne bedingte Erwärmung der Wicklung in zulässigen Grenzen bleibt. Vorausgesetzt diese Bedingungen werden eingehalten, so ist die maximal zulässige Windungszahl im wesentlichen nur noch durch den Radius des Restloches ces bewickelten Ringkerns bestimmt, Erfolgt die Bewicklung der üblich mit einer Isolierschicht beschichteten Ringkerne 1 mittels an sich bekannter Wickelautomaten, dann muß neben den t.iickeldrähten auch das in Fig. 2 und 3 schematisch und gebrochen angedeutete, üblicherweise ringförmige Wickelmagazin 3 durch das Ringkernloch 2 und schließlich auch durch das bei Beendigung des Wickelvorgangs verbleibende Restloch geführt werden.It should be noted that this is also due to the core and winding material and heating of the winding caused by the geometrical dimensions of the toroidal cores remains within permissible limits. Provided these conditions are met, so the maximum permissible number of turns is essentially only through the radius of the remaining hole ces wound toroidal core is determined, the winding takes place as usual toroidal cores 1 coated with an insulating layer by means of automatic winding machines known per se, then, in addition to the nickel wires, the one in Fig. 2 and 3 must also be shown schematically and broken indicated, usually ring-shaped winding magazine 3 through the toroidal core hole 2 and finally also through the remaining hole when the winding process is completed be guided.

7ur Schaffung elektrischer Bauelemente hoher Induktivität bietet sich nun an, bei gleichen Außen- un innendurchrnessern ra und ri der Ringkerne 1 Ringkerne größerer Höhe "h" zu verwenden (s. Fig. 3). Die vergrößerten geometrischen Abmessungen der Ringkerne 5 und ihrer Wicklungen 6 führen in einem nicht unerheblichen Ausmaße zur Induktivitätserhöhung. Vorausgesetzt, die Bewicklung des Ringkernes erfolgt in einem Wickelautomaten, so ist die Ringkernhöhe, bei ansonsten gleichem Durchmesser des Ringkernlochs bzw.To create electrical components with high inductance offers with the same outer and inner diameters ra and ri of the toroidal cores 1 Use toroidal cores of greater height "h" (see Fig. 3). The enlarged geometric Dimensions of the toroidal cores 5 and their windings 6 result in a not insignificant amount Dimensions to increase inductance. Assuming the winding of the toroidal core takes place in an automatic winding machine, the toroidal core height is otherwise the same Diameter of the toroidal core hole or

Ringkernrestloches, i.w. nur durch den Querschnitt und den Krümmungsradius des ringförmigen Wickelmagazins 3 begrenzt.Ring core residual holes, i.w. only by the cross section and the radius of curvature of the annular winding magazine 3 limited.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, einen Ringkern in seinen geometrischen Abmessungen so zu gestalten, daß er im Vergleich zu Ringkernen rechteckförmigen Querschnitts und gleicher Außen- und Innendurchmesser induktive Bauelemente mit wesentlich erhöhter Induktilität ermöglicht und dennoch zur Verringerung der Herstellungskosten in automatischen oder halbautomatischen Ringkernwickelmaschinen bewickelt werden kann.The present invention is based on the object of a toroidal core to design in its geometric dimensions so that it is compared to toroidal cores rectangular cross-section and the same outside and inside diameter inductive Components with significantly increased inductance allows and yet to reduce the manufacturing costs in automatic or semi-automatic toroidal winding machines can be wound.

Zur Lösung dieser Aufgabe sieht die Erfindung bei einem Ringkern der eingangs genannten Art vor, daß der nuerschnitt des Ringkerns in Ringkernloch-Bereich in Richtung zur Ringkernmittelachse wenigstens annähernd kreisringförmig gekrümmt ist.To solve this problem, the invention provides a toroidal core The type mentioned at the outset that the cross section of the toroidal core in the toroidal core hole area curved at least approximately in the shape of a circular ring in the direction of the toroidal core center axis is.

Vorteilhafterweise ist dabei der Krummungsrad us des kreisringförmig gekrümmten Ringkernteils mindestens angenähert gleich dem Krümmungsradius des ringförmigen Wickelmagazins des Wickelautomaten.Advantageously, the wheel of curvature us of the is annular curved toroidal core part at least approximately equal to the radius of curvature of the annular Winding magazine of the automatic winding machine.

Diese Ringkerngestaltung ermöglicht die einwandfreie Führung des Wickelmagazins durch das Ringkernrestloch, wobei Qie Wickeldrähte den Ringkern vollständig umschließen.This toroidal core design enables the winding magazine to be properly guided through the residual toroidal core hole, with the winding wires completely surrounding the toroidal core.

Die Erfindung wird nachstehend anhand eines in t7g.The invention is explained below with the aid of one in t7g.

geschnitten und teilweise gebrochen dargestellten Ausführungsbeispiels näher erläutert.cut and partially broken illustrated embodiment explained in more detail.

Mit 7 ist dabei ein Ringkern, insbesondere Ferrit-Ringkern nach der Erfindung bezeichnet, der im Ringkernloch-Bereich 8 einen - betrachtet in Richtung zur Ringkernmittelachse AA' - kreisringförmig gekrtimmten Querschnitt aufweist.With 7 is a toroidal core, in particular ferrite toroidal core after Invention denotes, the one in the toroidal core hole area 8 - viewed in the direction to the toroidal core center axis AA '- having a circular shaped cross-section.

Das in seinem Krümmungsradius dem Krümmungsradius des kreisringförmigen Ringkernteils angepaßte Wickelmagazin 3 ist selbst bei der im vergleich zu den Figuren 1 bis 3 relativ großen Höhe des Ringkernes 7 problemlos durch das Restloch des mit einer Wicklung 9 bewickelten RinG- -kerns 7 führbar.That in its radius of curvature the radius of curvature of the circular ring-shaped Toroidal core part adapted winding magazine 3 is even in the comparison to the figures 1 to 3 relatively large height of the toroidal core 7 easily through the remaining hole of the with a winding 9 wound RinG core 7 feasible.

2 Patentansprüche 4 Figuren2 claims 4 figures

Claims (1)

Patentansprüche Qi Ringkern für elektrische Ringkernspuien und 'uXoertrager höherer Induktivität, insbesondere wickelauto!natengerechter Ringkern mit hinsichtlich Induktivität und Wikkein cpt lem, zumindest angenähert rechteckförmigem Ringkern-Querschnitt, d a d u r c h g e k e n n -z e i c h n e t , daß der Querschnitt des Ringkerns (7) im Ringkernloch-Bereich (8) in Richtung zur Ringkernmittelachse (AA') wenigstens angenähert kreisringförmig gekrümmt ist.Claims Qi toroidal core for electrical toroidal cores and 'uXo carriers higher inductivity, especially toroidal core compatible with winding machines Inductance and Wikkein cpt lem, at least approximately rectangular toroidal core cross-section, d a d u r c h e k e n n -z e i c h n e t that the cross-section of the toroidal core (7) in the toroidal core hole area (8) in the direction of the toroidal core center axis (AA ') at least is approximately circularly curved. 2, Ringkern nach Anspruch 1, d a d u r c h g e X e n n -z e i c h n e t , daß der Krümmungsradius des kreisringförmig gekrümmten Ringkernteils mindestens angenähert gleich dem Krümmungsradius des ringförmigen Wickelmagazins (3) eines Wickelautomaten ist.2, toroidal core according to claim 1, d a d u r c h e X e n n -z e i c h n e t that the radius of curvature of the annularly curved toroidal core part is at least approximately equal to the radius of curvature of the annular winding magazine (3) one Automatic winding machine is.
DE19823232025 1982-08-27 1982-08-27 Annular core for electrical annular coils and transformers Withdrawn DE3232025A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19823232025 DE3232025A1 (en) 1982-08-27 1982-08-27 Annular core for electrical annular coils and transformers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823232025 DE3232025A1 (en) 1982-08-27 1982-08-27 Annular core for electrical annular coils and transformers

Publications (1)

Publication Number Publication Date
DE3232025A1 true DE3232025A1 (en) 1984-03-01

Family

ID=6171915

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19823232025 Withdrawn DE3232025A1 (en) 1982-08-27 1982-08-27 Annular core for electrical annular coils and transformers

Country Status (1)

Country Link
DE (1) DE3232025A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6407655B1 (en) 1994-03-16 2002-06-18 Kitamura Kiden Co., Ltd. Wound core for toroidal transformer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6407655B1 (en) 1994-03-16 2002-06-18 Kitamura Kiden Co., Ltd. Wound core for toroidal transformer

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