ES278941U - Transformador smt con nucleo de ferrita - Google Patents

Transformador smt con nucleo de ferrita

Info

Publication number
ES278941U
ES278941U ES1984278941U ES278941U ES278941U ES 278941 U ES278941 U ES 278941U ES 1984278941 U ES1984278941 U ES 1984278941U ES 278941 U ES278941 U ES 278941U ES 278941 U ES278941 U ES 278941U
Authority
ES
Spain
Prior art keywords
core
legs
portions
ferrite core
switch mode
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.)
Granted
Application number
ES1984278941U
Other languages
English (en)
Other versions
ES278941Y (es
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/es
Application granted granted Critical
Publication of ES278941Y publication Critical patent/ES278941Y/es
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

1. Transformador SMT con núcleo de ferrita, alrededor de un ramal del cual se disponen los devanados de primario y secundario, comprendiendo el núcleo de ferrita por lo menos dos porciones complementarias simétricamente acopladas, caracterizado por comprender además una jaula de fijación (7) configurada con una superficie superior (8), adecuada para cooperar con una de las porciones (5) del núcleo (4), desde cuyos lados se extiende una serie de montantes (9) cuyos respectivos extremos libres (10, 11) son adecuados para replegarse contra la otra porción (6) del núcleo, de modo que dichas porciones complementarios quedan fijadas en la citada jaula entre la superficie superior (8) y los extremos de los montantes (9). 2. Transformador SMT con núcleo de ferrita según la reivindicación 1, caracterizado por el hecho de que la jaula de fijación (7) está realizada en material ferromagnético y comprende en una sola pieza porciones anulares (12) que se extienden entre dichos montantes (9) yconstituyen una espira de cortocircuito dispuesta alrededor de los devanados (1) del transformador. 2. Transformador SMT con núcleo de ferrita según la reivindicación 1, caracterizado por el hecho de que los citados extremos de los montantes están configurados con respectivas lengüetas (10,11) adecuadas para su repliegue contra el nucleo (4). 4. Transformador SMT con núcleo de ferrita.
ES1984278941U 1983-05-09 1984-04-18 Transformador smt con nucleo de ferrita Expired ES278941Y (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8334023U IT8334023V0 (it) 1983-05-09 1983-05-09 Trasformatore smt con nucleo di ferrite.

Publications (2)

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

Family

ID=11238756

Family Applications (1)

Application Number Title Priority Date Filing Date
ES1984278941U Expired ES278941Y (es) 1983-05-09 1984-04-18 Transformador smt con nucleo de ferrita

Country Status (5)

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

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 (fr) * 1989-12-01 1992-02-21 Orega Electro Mecanique Dispositif de blindage pour transformateur d'alimentation a decoupage.
US6950291B1 (en) 1999-11-29 2005-09-27 Lucent Technologies Inc. Electromagnetic interference shielding for small magnetic devices
CN111735994B (zh) * 2020-08-25 2020-11-13 广东电网有限责任公司东莞供电局 一种变压器检测用夹具

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 (de) * 1972-02-25 1973-08-30 Siemens Ag Abgleichbare elektrische spule, insbesondere fuer hybrid- und gedruckte schaltungen
GB2035706B (en) * 1978-11-09 1983-05-05 Tdk Electronics Co Ltd Inductance element

Also Published As

Publication number Publication date
ATE31840T1 (de) 1988-01-15
EP0131700A3 (en) 1985-05-15
IT8334023V0 (it) 1983-05-09
DE3468578D1 (en) 1988-02-11
EP0131700A2 (en) 1985-01-23
EP0131700B1 (en) 1988-01-07
ES278941Y (es) 1985-04-01

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Legal Events

Date Code Title Description
FD1K Utility model lapsed

Effective date: 20000301