EP0862807B1 - Stabspule für zündanlagen - Google Patents

Stabspule für zündanlagen Download PDF

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Publication number
EP0862807B1
EP0862807B1 EP97925909A EP97925909A EP0862807B1 EP 0862807 B1 EP0862807 B1 EP 0862807B1 EP 97925909 A EP97925909 A EP 97925909A EP 97925909 A EP97925909 A EP 97925909A EP 0862807 B1 EP0862807 B1 EP 0862807B1
Authority
EP
European Patent Office
Prior art keywords
rod
type coil
channel
gaps
casting resin
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
EP97925909A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0862807A1 (de
Inventor
Karl-Heinz NÜBEL
Wolfgang Endres
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0862807A1 publication Critical patent/EP0862807A1/de
Application granted granted Critical
Publication of EP0862807B1 publication Critical patent/EP0862807B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T13/00—Sparking plugs
    • H01T13/40—Sparking plugs structurally combined with other devices
    • H01T13/44—Sparking plugs structurally combined with other devices with transformers, e.g. for high-frequency ignition
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/12—Ignition, e.g. for IC engines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/12—Ignition, e.g. for IC engines
    • H01F2038/122—Ignition, e.g. for IC engines with rod-shaped core

Definitions

  • the invention is based on a rod coil for ignition systems in internal combustion engines according to the preamble of claim 1.
  • Rod coil known which is a cylindrical in the basic form Has housing. Inside the case is a rod-shaped core, a primary and a secondary winding, each applied to a separate winding body are as well as several yoke plates to influence the Magnetic field of the bar coil arranged. These elements are separated from each other by gaps, some of them one have small cross-sectional area and for insulation the elements are filled with cast resin without any imperfections have to.
  • the housing is on the one hand with a Primary connection and on the other hand with a secondary connection completed as a high voltage connection, so that Filling the casting resin is difficult.
  • the rod coil according to the invention for ignition systems with the characteristic features of claim 1 has in contrast the advantage that the aforementioned inadequacy in satisfactory level is avoided.
  • This is the Rod coil designed so that through a channel that longer than each of the coils of the bar coil is the cast resin directly, downstream of the windings, into the rod coil is feasible and from here merges into column that the Windings are adjacent.
  • a rod coil 11 for ignition systems is according to the figure provided for direct contact with a spark plug 12, in the usual and no longer shown in one Manhole in a cylinder head of an internal combustion engine is inserted.
  • the rod coil 11 as a largely rotationally symmetrical part, contains a in a coaxial arrangement to a longitudinal axis 13 elongated cylindrical core 14 made of magnetic material, which is traversed by a central channel 16.
  • a first winding body 17 is concentric around the core 14 arranged as a primary coil body made of plastic, which as Overmolding of the core 14 or as a separate mounting body can be executed. On the first bobbin 17 a low-voltage primary winding 18 applied.
  • a second winding body 21 With a small radial distance as a first gap 19 to Primary winding 18 is a second winding body 21 arranged the leading with a high voltage Secondary winding 22 is provided.
  • the secondary winding 22 can also be on the inside and the primary winding 18 can also be arranged on the outside.
  • the housing 24 includes one end High-voltage connection 27 for transferring the ignition energy of the Rod coil 11 to the, only in a broken line indicated spark plug 12 and the other Connection section 29. Between the housing 24, the High-power connection 27 and the connection section 29 is an interior 30 is formed.
  • the high-voltage connection 27 comprises a dome in detail 31, a protective jacket 32, an electrode 33 and a Contact spring 34.
  • the dome 31 is a sleeve-shaped, coaxial in the basic form arranged with the housing 24 to the longitudinal axis 13 one-piece plastic part, alternatively also one of the Housing 24 separate plastic part, which with a Terminal bolt 36 of the spark plug 28 electrically conductive connected contact spring 34 and a pin 37 of the stepped cylindrical electrode 33, the also in electrical connection with the contact spring 34 stands, surrounds.
  • the electrode 33 is mounted such that the interior 30 is sealed at this end.
  • the Electrode 33 is located in the interior 30 Contact plate 39 electrically conductive with one end of the Secondary winding 22 connected.
  • the outside Spark plug 12 directed, step-shaped, sleeve-shaped Protective sheath 32 made of silicone rubber attached to one Insulator 41 of the spark plug 12 encloses and the Contact area between spark plug 12 and rod coil 11 seals.
  • the high-voltage connection 27 forms the opposite Connection section 29 the other end of the rod coil 11.
  • Der Connection section 29 includes one in detail Primary connection 42, a separation chamber 43, a filler neck 44 and a compensation chamber 46 and is except for metallic Contact elements 47 in the primary section 42 as the end face in essentially open, one-piece plastic part educated.
  • the filler neck 44 is arranged coaxially to the longitudinal axis 13, into which a pouring nozzle 48 for filling the interior 30 with a cast resin 49 shown as an indication can be used. Between the filler neck 44 and the external primary connection 42, via which the rod coil 11th The separation chamber 43 can be supplied with low voltage arranged. On the other side of the filler neck 44 is the compensation chamber 46 attached externally.
  • Separation chamber 43, filler neck 44 and compensation chamber 46 are connected to the interior 30. so one goes in the filler neck 44 opening 51 aligned in the Channel 16 via that in a floor area 52 of the interior 30 ends. From the bottom area 52 lead the annular column 19, 23 to the compensation chamber 46 and also, not visible in this illustration, to the Separation chamber 43.
  • the casting resin 49 is first laminar through the channel 16, which can alternatively be attached off-center and the can be implemented with different cross-sectional shapes, purposefully brought into the bottom area 52, from where it is as a uniform front can rise upwards.
  • the filling process is finished when the casting resin 49 through the Column 19, 23 has entered the chambers 43, 46 and here partial filling has occurred.
  • the separation chamber 43 In order to prevent contamination of the primary connection 42 Pull off the pouring nozzle 48 after the filling process has ended to prevent dripping resin 49 is between the Filler neck 40 and the primary connection 42, the separation chamber 43 intended.
  • the separation chamber 43 also serves as the Compensation chamber 46, as a riser, in which a can set different filling level of the casting resin 49. This is due to the volume tolerances of the interior 30 possible.
  • the gaps 19, 23 in the area of the winding bodies 17, 21 are narrow and have a high flow resistance, are only at the end of the flow path.
  • the pouring time at the manufacture of the rod coil 11 a high cost factor is therefore considerably shorter than one Rod coil 11 without channel 16.
  • a rod coil 11 is thus created has a casting time that is favorable in terms of production technology, combined with a high level of manufacturing security through the Avoiding air pockets in the resin 49.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
EP97925909A 1996-09-26 1997-06-12 Stabspule für zündanlagen Expired - Lifetime EP0862807B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE29616780U DE29616780U1 (de) 1996-09-26 1996-09-26 Stabspule für Zündanlagen
DE29616780U 1996-09-26
PCT/DE1997/001186 WO1998013914A1 (de) 1996-09-26 1997-06-12 Stabspule für zündanlagen

Publications (2)

Publication Number Publication Date
EP0862807A1 EP0862807A1 (de) 1998-09-09
EP0862807B1 true EP0862807B1 (de) 2002-09-18

Family

ID=8029771

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97925909A Expired - Lifetime EP0862807B1 (de) 1996-09-26 1997-06-12 Stabspule für zündanlagen

Country Status (7)

Country Link
US (1) US5949319A (zh)
EP (1) EP0862807B1 (zh)
JP (1) JP4027428B2 (zh)
CN (1) CN1064183C (zh)
DE (2) DE29616780U1 (zh)
RU (1) RU2177079C2 (zh)
WO (1) WO1998013914A1 (zh)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3953667B2 (ja) * 1999-01-11 2007-08-08 株式会社デンソー 点火コイル
US6216679B1 (en) * 1999-07-27 2001-04-17 Delphi Technologies, Inc. Ignition coil for an internal combustion engine
US6114933A (en) * 1999-09-08 2000-09-05 Visteon Global Technologies, Inc. Pencil ignition coil assembly module environmental shield
US6443137B1 (en) * 2000-09-08 2002-09-03 Delphi Technologies, Inc. Method of producing spark ignition assembly with integral spark plug and ignition coil
US6650219B1 (en) * 2000-11-21 2003-11-18 Visteon Global Technologies, Inc. Ignition coil core isolation
JP3979166B2 (ja) 2001-10-18 2007-09-19 株式会社デンソー 点火コイル
DE102004003216B3 (de) * 2004-01-22 2005-08-25 Era Ag Zündspule für eine Brennkraftmaschine
DE102005047185A1 (de) * 2005-09-30 2007-04-05 Robert Bosch Gmbh Zündspule für eine Brennkraftmaschine
EP2394279A1 (en) * 2009-02-03 2011-12-14 ABB Research Ltd. Electrically insulating body
US8839752B2 (en) * 2011-01-14 2014-09-23 John A. Burrows Corona igniter with magnetic screening
BRPI1101495B1 (pt) * 2011-04-15 2020-09-24 Siemens Aktiengesellschaft Transformador de distribuição a seco trifásico ou monofásico e método de isolação elétrica para um painel de taps de um transformador de distribuição a seco trifásico ou monofásico
CN104595085B (zh) * 2013-10-30 2016-09-07 北汽福田汽车股份有限公司 点火线圈及设有该点火线圈的车辆

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56140607A (en) * 1980-04-03 1981-11-04 Mitsubishi Electric Corp Resin-impregnated molded coil
JPS5974609A (ja) * 1982-10-20 1984-04-27 Moriyama Kogyo Kk 高圧トランス
JP2995763B2 (ja) * 1989-11-10 1999-12-27 株式会社デンソー 点火コイル
EP0469142B1 (de) * 1990-02-21 1995-04-05 Robert Bosch Ag Kraftstoffeinspritzeinrichtung für einspritzbrennkraftmaschinen
JPH0462359U (zh) * 1990-10-03 1992-05-28
JPH04143461A (ja) * 1990-10-05 1992-05-18 Honda Motor Co Ltd 内燃機関の点火装置
ATE271043T1 (de) * 1995-12-21 2004-07-15 Syngenta Participations Ag Verfahren zur herstellung von 2-chlor-5- chloromethyl-thiazol

Also Published As

Publication number Publication date
RU2177079C2 (ru) 2001-12-20
CN1064183C (zh) 2001-04-04
CN1205124A (zh) 1999-01-13
US5949319A (en) 1999-09-07
JP2000501895A (ja) 2000-02-15
WO1998013914A1 (de) 1998-04-02
DE59708258D1 (de) 2002-10-24
EP0862807A1 (de) 1998-09-09
JP4027428B2 (ja) 2007-12-26
DE29616780U1 (de) 1998-01-29

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