EP0594031B1 - Induktives elektrisches Bauelement - Google Patents

Induktives elektrisches Bauelement Download PDF

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Publication number
EP0594031B1
EP0594031B1 EP93116457A EP93116457A EP0594031B1 EP 0594031 B1 EP0594031 B1 EP 0594031B1 EP 93116457 A EP93116457 A EP 93116457A EP 93116457 A EP93116457 A EP 93116457A EP 0594031 B1 EP0594031 B1 EP 0594031B1
Authority
EP
European Patent Office
Prior art keywords
coil former
magnet core
contact pin
limbs
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.)
Expired - Lifetime
Application number
EP93116457A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0594031A1 (de
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/de
Application granted granted Critical
Publication of EP0594031B1 publication Critical patent/EP0594031B1/de
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 body with flanges for electrical coils with ferrite shell core halves is known, which is equipped with connecting pins and can be wound automatically.
  • open-edge slots are embedded and resilient snap-on elements formed with projections are formed on the flanges of the coil body, the projections of which engage behind the outer shell core bottoms when the shell core halves are fitted onto the coil body.
  • 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 of EP core halves 20 to be described later.
  • the coil former 10 furthermore has two integrally molded contact pin strips 14, 15 with contact pins 16.
  • transformer design in question is generally known, for example on the illustration 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 former 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 latching lugs 34 which are preferably inclined outward from the surface of the legs 33.
  • latching lugs 34 are formed in that the legs 33 have incisions 35 in the area 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 conformity with the latching lugs 34 of the spring cap 30 at the free ends of the contact pin strips 14, 15, undercuts 18 limited to the outside by projections 17.
  • the spring cap 30 After sliding the magnetic core halves 20 onto the coil body 10, such that the central slugs 21 engage in the cylindrical through hole 13 and the outer legs 22 rest on the contact pin strips 14, 15, the spring cap 30 from above onto the unit consisting of the coil body 10 and the magnetic core 20 , 21, 22 pushed on, the latching lugs 34 snap into the undercuts 18, as a result of which 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. In the direction of the magnetic axis, 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)
  • Burglar Alarm Systems (AREA)
  • Parts Printed On Printed Circuit Boards (AREA)
EP93116457A 1992-10-22 1993-10-11 Induktives elektrisches Bauelement Expired - Lifetime EP0594031B1 (de)

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 EP0594031A1 (de) 1994-04-27
EP0594031B1 true EP0594031B1 (de) 1997-06-04

Family

ID=6471110

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93116457A Expired - Lifetime EP0594031B1 (de) 1992-10-22 1993-10-11 Induktives elektrisches Bauelement

Country Status (9)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10106837A1 (de) * 2001-02-14 2002-09-12 Epcos Ag Federkappe und elektrisches Bauelement
DE10114182A1 (de) * 2001-03-23 2002-10-24 Epcos Ag Induktives Bauelement mit Drahtführungsschlitzen

Families Citing this family (22)

* 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
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
DE10066186B4 (de) * 2000-11-17 2008-02-28 Epcos Ag Ferritkern mit neuer Bauform
US6501362B1 (en) 2000-11-28 2002-12-31 Umec Usa, Inc. Ferrite core
US6483412B1 (en) 2001-05-03 2002-11-19 Conev Inc. Transformer or inductor containing a magnetic core
WO2003010784A1 (en) * 2001-07-25 2003-02-06 Pulsus Technologies Inc. Magnetic core for inductor
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
MX2007015183A (es) * 2005-06-14 2008-02-19 Baxter Int Formulaciones farmaceuticas para minimizar las interacciones farmaco-farmaco.
KR101121843B1 (ko) * 2006-03-17 2012-03-21 가부시키가이샤 다무라 세이사쿠쇼 코어 고정 부재 및 구조
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
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
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
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

Family Cites Families (6)

* 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
JPS615779Y2 (fi) * 1979-09-25 1986-02-21
DE3235655A1 (de) * 1982-09-27 1984-03-29 L.C.C.-C.I.C.E. Compagnie Européenne de Composants Electroniques, 93170 Bagnolet Elektrische spule
DE3629006A1 (de) * 1986-08-27 1988-03-03 Siemens Ag Spulenkoerper fuer elektrische spulen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10106837A1 (de) * 2001-02-14 2002-09-12 Epcos Ag Federkappe und elektrisches Bauelement
DE10106837C2 (de) * 2001-02-14 2003-12-24 Epcos Ag Elektrisches Bauelement
DE10114182A1 (de) * 2001-03-23 2002-10-24 Epcos Ag Induktives Bauelement mit Drahtführungsschlitzen
DE10114182C2 (de) * 2001-03-23 2003-04-03 Epcos Ag Induktives Bauelement mit Drahtführungsschlitzen

Also Published As

Publication number Publication date
EP0594031A1 (de) 1994-04-27
US5489884A (en) 1996-02-06
DE59306653D1 (de) 1997-07-10
ATE154159T1 (de) 1997-06-15
JPH06204036A (ja) 1994-07-22
JP3498805B2 (ja) 2004-02-23
CA2108827A1 (en) 1994-04-23
FI934654A (fi) 1994-04-23
DK0594031T3 (da) 1997-12-22
FI934654A0 (fi) 1993-10-21
ES2102572T3 (es) 1997-08-01
FI112290B (fi) 2003-11-14

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