DE2723008A1 - Laminated iron core for transformer choke, etc. - has split outer core wound with strip, and inner core laminations held by screws or rivets in magnetically inactive areas - Google Patents

Laminated iron core for transformer choke, etc. - has split outer core wound with strip, and inner core laminations held by screws or rivets in magnetically inactive areas

Info

Publication number
DE2723008A1
DE2723008A1 DE19772723008 DE2723008A DE2723008A1 DE 2723008 A1 DE2723008 A1 DE 2723008A1 DE 19772723008 DE19772723008 DE 19772723008 DE 2723008 A DE2723008 A DE 2723008A DE 2723008 A1 DE2723008 A1 DE 2723008A1
Authority
DE
Germany
Prior art keywords
core
rivets
laminated iron
screws
iron core
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.)
Pending
Application number
DE19772723008
Other languages
German (de)
Inventor
Hugo-Werner Geschka
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.)
Blum Eisen & Metallind
Original Assignee
Blum Eisen & Metallind
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 Blum Eisen & Metallind filed Critical Blum Eisen & Metallind
Priority to DE19772723008 priority Critical patent/DE2723008A1/en
Publication of DE2723008A1 publication Critical patent/DE2723008A1/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
    • H01F27/263—Fastening parts of the core together
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
    • H01F27/2455—Magnetic cores made from sheets, e.g. grain-oriented using bent laminations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H01F27/25—Magnetic cores made from strips or ribbons

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)

Abstract

The laminated iron core for a transformer, choke, etc. has a split strip wound outer core assembled with one or more inner cores. The inner core(s) is inserted between the two parts of the outer core, and their laminations cross those of the outer cores. The inner core laminations are held together by screws, rivets (12, 13) etc. in holes (10, 11) in magnetically inactive areas (8, 9). Hollow-type rivets may be used. A grounding connection may be made at the holes. The inner core can be manufactured in a simple way without adversely affecting the electrical properties of the core.

Description

Lamellierter Eisenkern für Transformatoren, Drosselspulen od. dgl. Laminated iron core for transformers, inductors or the like.

Die Erfindung bezieht sich auf lamellierte Eisenkerne für Transformatoren, Drosselspulen od. dgl., mit einem bandwickelförmigen und unterteilten Mantel der mit mindestens einem Mittelkern zusammengebaut ist und dessen Mittelkern oder Mittelkerne im Bereich der Unterteilungsstellen des Mantels in diesen eingreift bzw. eingreifen, wobei die Bleche eines Mantelteils und die Bleche eines Mittelkerns sich gitterartig kreuzend aneinander grenzen.The invention relates to laminated iron cores for transformers, Choke coils or the like, with a tape-wound and subdivided jacket of the is assembled with at least one central core and its central core or cores engages or engages in the area of the subdivision points of the jacket, wherein the sheets of a shell part and the sheets of a central core are grid-like cross each other.

Solche Kerne haben sich sowohl wegen ihrer rationellen und abfallarmen Herstellungsweise als auch in bezug auf ihre elektrischen Eigenschaften bewährt. Die Herstellung der Mantelkerne kann beispielsweise durch Wickeln derselben und unter Zugabe von Klebstoff zwischen die einzelnen Blechlagen erfolgen. Dies hat den Vorteil, daß während des nachfolgenden Trennens und anderer mechanischer Beanspruchungen, z. B. bei der Montage mit dem oder den Mittelkernen, die einzelnen Blechlagen zusammengehalten sind.Such cores have proven to be both rational and low-waste Proven production method as well as with regard to its electrical properties. The production of the jacket cores can for example by winding the same and with the addition of adhesive between the individual sheet metal layers. this has the advantage that during the subsequent cutting and other mechanical stresses, z. B. held together during assembly with the central core or cores, the individual sheet metal layers are.

Der vorliegenden Erfindung lag die Aufgabe zugrunde, den Mittelkern in besonders einfacher und rationeller Weise herzustellen, ohne dabei die elektrischen Eigellschaften zu beeinflussen.The present invention was based on the object of the central core to produce in a particularly simple and efficient way, without the electrical To influence own societies.

Gemäß der Erfindung wird dies dadurch erzielt, daß die Bleche des Mittelkernes durch Befestigungsmittel, wie Schrauben oder Niete zusammengehalten sind, die sich in quer zu den Blechen verlaufenden und im Bereich der magnetisch nahezuirksamen Zonen vorgesehenen Ausnehmungen befinden. Als Befestigungsmittel kann sich in besonders vorteilhafter Weise ein Hohlniet eignen, dessen Ausnehmung oder Öffnung gleichzeitig zur Aufnahme des Masseanschlusses dienen kann.According to the invention this is achieved in that the sheets of the Central core held together by fasteners such as screws or rivets are, which run in transverse to the sheets and in the area of the magnetic recesses provided in nearly effective zones. As a fastening means A hollow rivet can be suitable in a particularly advantageous manner, its recess or opening can also serve to accommodate the ground connection.

Anhand des in der Figur dargestellten Ausführungsbeispieles sei die Erfindung näher erläutert.Based on the embodiment shown in the figure, the Invention explained in more detail.

Die beiden Mantelteile 1 und 2 sind in an sich bekannter Weise durch Wickeln, Zusammenkleben der einzelnen Lagen und nachfolgendes Auftrennen gebildet. Zwischen den Unterteilungsflächen 1 a und 1 b sowie 2 a und 2 b ist ein Mittelkern 3 eingesetzt, um den die Spule gelegt werden kann. Der Kern 3 besteht aus einer Vielzahl von rechteckig gestanzten Blechen 3 a, die in einer Anordnung quer zu den Blechlagen der Mantelwickel 1, 2 vorgesehen sind, so daß sich die Bleche der wickelförmigen Mantelteile und des Mittelkernes gitterartig kreuzen. Der Verlauf der Kraftlinien im Mittelkern 3 ist durch die Linien 4, 5 und 6, 7 schematisch angedeutet. In dem magnetisch nahezu unwirksamen Bereich 8, 9 ist eine Ausnehmung 10, 11, die quer zu den Blechlagen 3 a verläuft, vorgesehen und die einzelnen Blechlagen sind mittels durch die Ausneluamgen 10, 11 durchgeführte Hohlniete 12, 13 zusammengehalten. In eine der Öffnungen des Hohlnietes kann eine Schraube für den Erdungsanschluß vorgesehen sein.The two shell parts 1 and 2 are in a known manner Wrapping, gluing the individual layers together and then separating them. A central core is located between the subdivision surfaces 1 a and 1 b and 2 a and 2 b 3 inserted around which the coil can be placed. The core 3 consists of one Variety of rectangular stamped metal sheets 3 a, which in an arrangement transverse to the Sheet metal layers of the jacket coil 1, 2 are provided so that the Cross the metal sheets of the wrap-around jacket parts and the central core in a grid-like manner. The course of the lines of force in the central core 3 is shown schematically by the lines 4, 5 and 6, 7 indicated. In the magnetically almost ineffective area 8, 9 is a recess 10, 11, which runs transversely to the sheet metal layers 3 a, provided and the individual sheet metal layers are held together by means of hollow rivets 12, 13 passed through the openings 10, 11. A screw for the earthing connection can be inserted into one of the openings in the hollow rivet be provided.

Claims (3)

Patentansprüche 9 llierter Eisenkern für Transformatoren, Drosselspulen od. dgl, mit einem bandwickelförmigen unterteilten Mantel, der mit einem oder mehreren Mittelkernen zusammengebaut ist und dessen Mittelkern oder Mittelkerne im Bereich der Unterteilungsstellen des Mantels in diesen eingreift bzw. eingreifen, wobei die Bleche eines Mantelteiles und die Bleche eines Mittelkernes sich gitterartig kreuzend aneinander grenzen, dadurch gekennzeichnet, daß die Bleche (3 a) des Mittelkernes (3) durch Befestigungsmittel, wie Schrauben oder Niete (12, 13) zusamnengehalten sind, die sich in quer zu den Blechen verlaufenden und im Bereich der magnetisch nahezu unwirksamen Zone (8, 9) vorgesehenen Ausnehmungen (10, 11) befinden. Claims 9 llated iron core for transformers, inductors od. The like, with a ribbon-shaped subdivided coat, which is provided with one or more Central cores is assembled and its central core or cores in the area of the subdivision points of the jacket engages or engages in this, wherein the sheets of a shell part and the sheets of a central core are grid-like adjoin each other in a crossing manner, characterized in that the metal sheets (3 a) of the central core (3) held together by fasteners such as screws or rivets (12, 13) are, which run in transverse to the sheets and in the area of the magnetic almost ineffective zone (8, 9) provided recesses (10, 11) are located. 2. Lamellierter Eisenkern nach Anspruch 1, dadurch gekennzeichnet, daß das Befestigungsmittel ein Hohlniet (12, 13) ist. 2. Laminated iron core according to claim 1, characterized in that that the fastening means is a hollow rivet (12, 13). 3. Lamellierter Eisenkern nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Ausnehmung (10, 11) zur Aufnahme des Masseanschlusses dient. 3. Laminated iron core according to claim 1 or 2, characterized in that that the recess (10, 11) is used to receive the ground connection.
DE19772723008 1977-05-21 1977-05-21 Laminated iron core for transformer choke, etc. - has split outer core wound with strip, and inner core laminations held by screws or rivets in magnetically inactive areas Pending DE2723008A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19772723008 DE2723008A1 (en) 1977-05-21 1977-05-21 Laminated iron core for transformer choke, etc. - has split outer core wound with strip, and inner core laminations held by screws or rivets in magnetically inactive areas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772723008 DE2723008A1 (en) 1977-05-21 1977-05-21 Laminated iron core for transformer choke, etc. - has split outer core wound with strip, and inner core laminations held by screws or rivets in magnetically inactive areas

Publications (1)

Publication Number Publication Date
DE2723008A1 true DE2723008A1 (en) 1978-11-30

Family

ID=6009555

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772723008 Pending DE2723008A1 (en) 1977-05-21 1977-05-21 Laminated iron core for transformer choke, etc. - has split outer core wound with strip, and inner core laminations held by screws or rivets in magnetically inactive areas

Country Status (1)

Country Link
DE (1) DE2723008A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3863032A4 (en) * 2018-10-03 2022-06-29 Nippon Steel Corporation Wound core and transformer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3863032A4 (en) * 2018-10-03 2022-06-29 Nippon Steel Corporation Wound core and transformer

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