ES278941Y - SMT TRANSFORMER WITH FERRITE CORE - Google Patents

SMT TRANSFORMER WITH FERRITE CORE

Info

Publication number
ES278941Y
ES278941Y ES1984278941U ES278941U ES278941Y ES 278941 Y ES278941 Y ES 278941Y ES 1984278941 U ES1984278941 U ES 1984278941U ES 278941 U ES278941 U ES 278941U ES 278941 Y ES278941 Y ES 278941Y
Authority
ES
Spain
Prior art keywords
core
legs
portions
ferrite core
smt
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
ES1984278941U
Other languages
Spanish (es)
Other versions
ES278941U (en
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.)
ACC Compressors SpA
Original Assignee
Zanussi Elettromeccanica SpA
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 Zanussi Elettromeccanica SpA filed Critical Zanussi Elettromeccanica SpA
Publication of ES278941U publication Critical patent/ES278941U/en
Application granted granted Critical
Publication of ES278941Y publication Critical patent/ES278941Y/en
Expired 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
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • H01F27/366—Electric or magnetic shields or screens made of ferromagnetic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F19/00—Fixed transformers or mutual inductances of the signal type
    • H01F19/04—Transformers or mutual inductances suitable for handling frequencies considerably beyond the audio range
    • H01F19/08—Transformers having magnetic bias, e.g. for handling pulses
    • 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
    • H01F27/02—Casings
    • H01F27/027—Casings specially adapted for combination of signal type inductors or transformers with electronic circuits, e.g. mounting on printed circuit boards
    • 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
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

An SMT-type transformer comrprises a ferrite core formed of two complementary portions mirror-symmetrically joined to one another, and a body including a primary and a secondary winding supported on one of the legs of the core. The two core portions are retained in the assembled condition by a retaining cage (7) preferably formed of a ferromagnetic material and having a top surface (8) engaging one core portion (5), and a plurality of legs (9) extending from the top surface and having end portions (10, 11) adapted to be bent into angagement with the other core portion (6). Integrally foremd with the legs are annular portions (12) surrounding the winding body (1) so as to constitute a short-circuit winding therearound.
ES1984278941U 1983-05-09 1984-04-18 SMT TRANSFORMER WITH FERRITE CORE Expired ES278941Y (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8334023U IT8334023V0 (en) 1983-05-09 1983-05-09 SMT TRANSFORMER WITH FERRITE CORE.

Publications (2)

Publication Number Publication Date
ES278941U ES278941U (en) 1984-09-16
ES278941Y true ES278941Y (en) 1985-04-01

Family

ID=11238756

Family Applications (1)

Application Number Title Priority Date Filing Date
ES1984278941U Expired ES278941Y (en) 1983-05-09 1984-04-18 SMT TRANSFORMER WITH FERRITE CORE

Country Status (5)

Country Link
EP (1) EP0131700B1 (en)
AT (1) ATE31840T1 (en)
DE (1) DE3468578D1 (en)
ES (1) ES278941Y (en)
IT (1) IT8334023V0 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4937546A (en) * 1989-03-28 1990-06-26 Salom Electric Co., Ltd. Ring-core transformer
FR2655475B1 (en) * 1989-12-01 1992-02-21 Orega Electro Mecanique SHIELDING DEVICE FOR A CUT-OUT POWER TRANSFORMER.
US6950291B1 (en) 1999-11-29 2005-09-27 Lucent Technologies Inc. Electromagnetic interference shielding for small magnetic devices
CN111735994B (en) * 2020-08-25 2020-11-13 广东电网有限责任公司东莞供电局 Clamp for transformer detection

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3617854A (en) * 1970-04-20 1971-11-02 Raytheon Co Pulse transformer
US3668586A (en) * 1971-03-08 1972-06-06 Electronic Associates Transformer-inductor frame and kit
DE2209071A1 (en) * 1972-02-25 1973-08-30 Siemens Ag ADJUSTABLE ELECTRIC COIL, IN PARTICULAR FOR HYBRID AND PRINTED CIRCUITS
GB2035706B (en) * 1978-11-09 1983-05-05 Tdk Electronics Co Ltd Inductance element

Also Published As

Publication number Publication date
ES278941U (en) 1984-09-16
DE3468578D1 (en) 1988-02-11
EP0131700A3 (en) 1985-05-15
EP0131700A2 (en) 1985-01-23
IT8334023V0 (en) 1983-05-09
ATE31840T1 (en) 1988-01-15
EP0131700B1 (en) 1988-01-07

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Legal Events

Date Code Title Description
FD1K Utility model lapsed

Effective date: 20000301