EP0594031A1 - Elément électrique d'inductance - Google Patents

Elément électrique d'inductance Download PDF

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Publication number
EP0594031A1
EP0594031A1 EP93116457A EP93116457A EP0594031A1 EP 0594031 A1 EP0594031 A1 EP 0594031A1 EP 93116457 A EP93116457 A EP 93116457A EP 93116457 A EP93116457 A EP 93116457A EP 0594031 A1 EP0594031 A1 EP 0594031A1
Authority
EP
European Patent Office
Prior art keywords
legs
contact pin
magnetic core
opposite sides
pushed
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
EP93116457A
Other languages
German (de)
English (en)
Other versions
EP0594031B1 (fr
Inventor
Egon Dipl.-Ing.(Fh) Heringer
Horst Dipl.-Ing.(Fh) Scheffler
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.)
TDK Electronics AG
Original Assignee
Siemens Matsushita Components GmbH and Co KG
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 Matsushita Components GmbH and Co KG filed Critical Siemens Matsushita Components GmbH and Co KG
Publication of EP0594031A1 publication Critical patent/EP0594031A1/fr
Application granted granted Critical
Publication of EP0594031B1 publication Critical patent/EP0594031B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/29—Terminals; Tapping arrangements for signal inductances
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type
    • H01F17/04—Fixed inductances of the signal type with magnetic core
    • H01F17/041—Means for preventing rotation or displacement of the core
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/04—Arrangements of electric connections to coils, e.g. leads
    • H01F2005/043—Arrangements of electric connections to coils, e.g. leads having multiple pin terminals, e.g. arranged in two parallel lines at both sides of the coil
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/04—Arrangements of electric connections to coils, e.g. leads
    • H01F2005/046—Details of formers and pin terminals related to mounting on printed circuits

Definitions

  • the present invention relates to an inductive electrical component according to the preamble of patent claim 1.
  • Such inductive components are known, for example, from the Siemens data book 1990/91 "Ferrites and Accessories", in particular pages 321 to 323 and 338 and 339.
  • a coil former 10 has a winding space delimited by two coil former flanges 11, 12 with a cylindrical through hole 13 for receiving central slugs 21 from EP core halves 20 to be described later.
  • the coil former 10 also has two integrally molded contact pin strips 14, 15 with contact pins 16.
  • Two EP core halves 20 with central slugs 21 and core legs 22 can be slid onto the bobbin 10 in such a way that the central slugs 21 engage in the cylindrical through hole 13 and the core legs 22 rest on the contact pin strips 14, 15.
  • the transformer design in question is generally known, for which purpose, for example, the representation on the page 323 of the above-mentioned Siemens data book.
  • the core halves are held on the coil body by means of a holding device, which is formed by two separate parts, namely a bracket and a clamp.
  • a holding device which is formed by two separate parts, namely a bracket and a clamp.
  • both the bracket and the bracket are U-shaped.
  • the bracket on the outside of the two legs of the U-shape each has a locking lug, while the clip in the legs of the U-shape each has a recess adapted to the locking lugs of the bracket.
  • the bracket and the clip are pushed from one side in the direction of the central axis from the bobbin through-hole and central slug of the core halves onto the assembled unit of coil bobbin and core halves, the latching lugs of the bracket then latching into the recesses in the clip. Since the yoke of the clip is concave and thus exerts an additional spring action, the core halves are pushed together and held on the coil body in the direction of the above-mentioned axis.
  • the bracket seated on a core half has two inwardly directed legs engaging the core half, which ensure a certain mounting perpendicular to the aforementioned axis (also the magnetic axis of the transmitter).
  • an embodiment of the type explained above is not yet completely satisfactory with regard to the holding of the core halves on the coil former in that a good holding device is provided by the bracket and the clamp Direction of the magnetic axis but not always sufficient support perpendicular to this axis is guaranteed, so that the core halves can still have some play on the coil former, which can adversely affect the electromagnetic properties of the transmitter.
  • FIG. 1 Another known embodiment of a typical transformer design has a so-called Q-core in the form of two core halves, this design generally corresponding in terms of the coil form and the ferrite core to the design with EP core explained above.
  • a cover cap is provided which, when the core halves are attached to the coil former, is pushed onto this unit comprising the coil former and core from above.
  • the cover cap In the direction of the magnetic axis, the cover cap has two resilient legs on opposite sides, which act on the outer sides of the core halves and compress them on the coil body in the direction of the magnetic axis.
  • the core halves may not be adequately fastened perpendicularly to the magnetic axis on the coil former.
  • the present invention has for its object to provide an inductive electrical component of the type in question a way to adequately attach the magnetic core on the bobbin both in the magnetic axis and perpendicular to it.
  • a spring cap 30 designed according to the invention is provided in connection with a special design of the contact pin strips 14, 15 of the coil body 10 adapted to this.
  • the spring cap 30 has a yoke 31 which is concave at least in its central region 32 and thereby receives an additional spring action.
  • legs 33 are provided on two opposite sides, which have locking lugs 34, which are preferably inclined outward from the surface of the legs 33. These locking lugs 34 are formed in that the legs 33 have incisions 35 in the region of their free ends with the dimensions of the contact pin strips 14, 15 of the coil body Have 10 corresponding dimensions. The legs 33 continue beyond the locking lugs 34 in earthing pins 36.
  • spring clips 37 are provided on the yoke 31.
  • the coil former 10 has, in adaptation to the latching lugs 34 of the spring cap 30 at the free ends of the contact pin strips 14, 15, undercuts 18 delimited to the outside by projections 17.
  • the locking lugs 34 snap into the undercuts 18, whereby the core halves 20 are held on the bobbin 10 in the direction perpendicular to the magnetic axis, that is to say the central axis running through the through hole 13 and the central slugs 21.
  • the core halves 20 are held together by the spring clip 37. In this way, the core halves 20 are held firmly in two mutually perpendicular directions without play on the coil body 10, so that impairments to the electromagnetic properties of the inductive component can no longer occur.
  • recesses 38 are provided in the legs 33 of the spring cap 30 via which the spring cap 30 can be glued to the core halves 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Thermistors And Varistors (AREA)
  • Parts Printed On Printed Circuit Boards (AREA)
  • Burglar Alarm Systems (AREA)
EP93116457A 1992-10-22 1993-10-11 Elément électrique d'inductance Expired - Lifetime EP0594031B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4235703 1992-10-22
DE4235703 1992-10-22

Publications (2)

Publication Number Publication Date
EP0594031A1 true EP0594031A1 (fr) 1994-04-27
EP0594031B1 EP0594031B1 (fr) 1997-06-04

Family

ID=6471110

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93116457A Expired - Lifetime EP0594031B1 (fr) 1992-10-22 1993-10-11 Elément électrique d'inductance

Country Status (9)

Country Link
US (1) US5489884A (fr)
EP (1) EP0594031B1 (fr)
JP (1) JP3498805B2 (fr)
AT (1) ATE154159T1 (fr)
CA (1) CA2108827A1 (fr)
DE (1) DE59306653D1 (fr)
DK (1) DK0594031T3 (fr)
ES (1) ES2102572T3 (fr)
FI (1) FI112290B (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29519428U1 (de) * 1995-12-07 1996-04-04 Siemens AG, 80333 München Haltebügel für einen Ferritkern
WO2002041338A1 (fr) * 2000-11-17 2002-05-23 Epcos Ag Tore de ferrite de construction nouvelle
WO2002065491A1 (fr) * 2001-02-14 2002-08-22 Epcos Ag Element de recouvrement elastique et composant electrique
WO2002091406A1 (fr) * 2001-05-03 2002-11-14 Coev, Inc. Transformateur ou inducteur contenant un noyau magnetique
US6781499B2 (en) 2001-03-23 2004-08-24 Epcos Ag Inductive component with wire-guiding slots

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5952907A (en) * 1997-04-07 1999-09-14 Pulse Engineering, Inc. Blind hole pot core transformer device
JP2002093613A (ja) * 2000-09-14 2002-03-29 Tdk Corp ｘＤＳＬモデムトランス用磁心材料
US6501362B1 (en) * 2000-11-28 2002-12-31 Umec Usa, Inc. Ferrite core
WO2003010784A1 (fr) * 2001-07-25 2003-02-06 Pulsus Technologies Inc. Noyau magnetique pour inducteur
US7598837B2 (en) 2003-07-08 2009-10-06 Pulse Engineering, Inc. Form-less electronic device and methods of manufacturing
US20050248426A1 (en) * 2004-05-10 2005-11-10 Trio Technology Co., Ltd. Core for a coil winding
US7135949B2 (en) * 2004-07-15 2006-11-14 Tyco Electronics Corporation Transformer or inductor containing a magnetic core having abbreviated sidewalls and an asymmetric center core portion
JP2008543842A (ja) * 2005-06-14 2008-12-04 バクスター インターナショナル インコーポレイテッド 薬物−薬物相互作用を最小にするための薬学的処方物
US8102228B2 (en) * 2006-03-17 2012-01-24 Tamura Corporation Core securing member and its structure
US7961070B2 (en) * 2008-10-23 2011-06-14 Tamura Corporation Inductor
DE102013101364B4 (de) * 2013-02-12 2023-02-02 Tdk Electronics Ag Elektrisches Übertragerbauelement
US10395815B2 (en) * 2015-01-22 2019-08-27 Delta Electronics, Inc. Magnetic device
DE102015122244B9 (de) * 2015-12-18 2024-05-02 Tdk Electronics Ag Anordnung zur Kompensierung von in einem Übertrager induzierten Störspannungen
CN105895336B (zh) * 2016-06-20 2017-12-01 合肥市菲力克斯电子科技有限公司 底部固定装置
CN106098328A (zh) * 2016-08-12 2016-11-09 宁波科曼电子科技有限公司 一种微型高频变压器
JP7025698B2 (ja) * 2018-03-06 2022-02-25 Tdk株式会社 表面実装コイル装置及び電子機器
US11783984B2 (en) * 2019-06-10 2023-10-10 Crestron Electronics, Inc. Inductor apparatus optimized for low power loss in class-D audio amplifier applications and method for making the same
US20200388435A1 (en) * 2019-06-10 2020-12-10 Crestron Electroncics, Inc. Inductor apparatus optimized for low power loss in class-d audio amplifier applications and method for making the same
JP7298545B2 (ja) * 2020-05-27 2023-06-27 株式会社村田製作所 コイル部品および電子部品
JP7643086B2 (ja) * 2021-02-26 2025-03-11 スミダコーポレーション株式会社 コイル部品

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0026104A1 (fr) * 1979-09-25 1981-04-01 TDK Corporation Moitié de noyau de ferrite et dispositifs utilisant ces moitiés de noyau
EP0104649A2 (fr) * 1982-09-27 1984-04-04 Siemens Aktiengesellschaft Inductance électrique
DE3629006A1 (de) * 1986-08-27 1988-03-03 Siemens Ag Spulenkoerper fuer elektrische spulen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3197167A (en) * 1963-04-01 1965-07-27 Gen Electric Mounting clip for pot core
US3371301A (en) * 1966-11-07 1968-02-27 Tdk Electronics Co Ltd Magnetic core unit
GB2035706B (en) * 1978-11-09 1983-05-05 Tdk Electronics Co Ltd Inductance element

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0026104A1 (fr) * 1979-09-25 1981-04-01 TDK Corporation Moitié de noyau de ferrite et dispositifs utilisant ces moitiés de noyau
EP0104649A2 (fr) * 1982-09-27 1984-04-04 Siemens Aktiengesellschaft Inductance électrique
DE3629006A1 (de) * 1986-08-27 1988-03-03 Siemens Ag Spulenkoerper fuer elektrische spulen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SIEMENS "Datenbuch 1990/91 - Ferrite und Zubehoer" Seiten 323-342 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29519428U1 (de) * 1995-12-07 1996-04-04 Siemens AG, 80333 München Haltebügel für einen Ferritkern
WO2002041338A1 (fr) * 2000-11-17 2002-05-23 Epcos Ag Tore de ferrite de construction nouvelle
US6696913B2 (en) 2000-11-17 2004-02-24 Epcos Ag Ferrite core for a transformer
WO2002065491A1 (fr) * 2001-02-14 2002-08-22 Epcos Ag Element de recouvrement elastique et composant electrique
US6781499B2 (en) 2001-03-23 2004-08-24 Epcos Ag Inductive component with wire-guiding slots
WO2002091406A1 (fr) * 2001-05-03 2002-11-14 Coev, Inc. Transformateur ou inducteur contenant un noyau magnetique
US6483412B1 (en) 2001-05-03 2002-11-19 Conev Inc. Transformer or inductor containing a magnetic core

Also Published As

Publication number Publication date
DK0594031T3 (da) 1997-12-22
JPH06204036A (ja) 1994-07-22
ES2102572T3 (es) 1997-08-01
JP3498805B2 (ja) 2004-02-23
FI112290B (fi) 2003-11-14
FI934654L (fi) 1994-04-23
EP0594031B1 (fr) 1997-06-04
US5489884A (en) 1996-02-06
DE59306653D1 (de) 1997-07-10
FI934654A0 (fi) 1993-10-21
CA2108827A1 (fr) 1994-04-23
ATE154159T1 (de) 1997-06-15

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