WO2012062601A1 - Bobine d'allumage au nombre d'éléments réduit - Google Patents

Bobine d'allumage au nombre d'éléments réduit Download PDF

Info

Publication number
WO2012062601A1
WO2012062601A1 PCT/EP2011/068914 EP2011068914W WO2012062601A1 WO 2012062601 A1 WO2012062601 A1 WO 2012062601A1 EP 2011068914 W EP2011068914 W EP 2011068914W WO 2012062601 A1 WO2012062601 A1 WO 2012062601A1
Authority
WO
WIPO (PCT)
Prior art keywords
winding
ignition coil
cylinder
coil according
bobbin
Prior art date
Application number
PCT/EP2011/068914
Other languages
German (de)
English (en)
Inventor
Konstantin Lindenthal
Florian Herzog
Kazim Kahraman
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
Priority to BR112013011396A priority Critical patent/BR112013011396A2/pt
Priority to CN201180054426.XA priority patent/CN103201802B/zh
Publication of WO2012062601A1 publication Critical patent/WO2012062601A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P3/00—Other installations
    • F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils
    • 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

Definitions

  • the present invention relates to an ignition coil for an internal combustion engine with a reduced number of components.
  • an ignition coil which has a suppression element for damping the electrical interference energy which occurs during ignition of the spark plug.
  • the suppression element is designed as an inductance in the axial direction of the ignition coil and is at least partially formed from the winding wire.
  • this known ignition coil is suitable only for pencil ignition coils and not for Kompaktzündspulen.
  • a Wckelagging the so-called cold side, and a winding end, the so-called hot side, each connected to a Anbindepfosten made of metal and welded by means of a ferrule.
  • an additional contact plate is needed for the production of a high voltage contact between the Anbindepfosten at the coil end and a suppression resistor.
  • the ignition coil according to the invention for an internal combustion engine with the
  • thermo-mechanical stresses in the ignition coil can be reduced. This has a positive effect on the service life of the ignition coil.
  • the ignition coil a bobbin with a first Cylinder section and a second cylinder section has.
  • the ignition coil comprises a winding, wherein a first Wckel Silver on the first cylinder portion and a second winding portion on the second
  • Cylinder section is wound. Between the two cylinder sections, a winding-free intermediate section is provided.
  • Cylinder sections are formed such that they each have a continuous cylinder jacket surface. Further, a slit-like channel is provided, which from the intermediate portion of an inner side of the second
  • the slot-like channel is arranged parallel to a center axis of the ignition coil. As a result, a short connection is obtained from the center of the ignition coil to an axial outside.
  • the high voltage outlet is preferably centered on
  • the high voltage output is made integral with the ignition coil and projects in a pin-like manner from an outer periphery of the bobbin.
  • Winding wire on a Anbindepfosten, a wire end ferrule and an additional separate high voltage contact part can be omitted.
  • the central arrangement of the high voltage outlet is particularly suitable for Kompaktzündspulen.
  • the high voltage output is designed as a suppression element, in which the winding wire from the last coil chamber for
  • High voltage output is wound around.
  • a high-voltage outlet with integrated suppressor element can be integrally formed on the bobbin.
  • the same cylinder sections also have a same diameter.
  • the first winding region and the second Wckel Scheme form a secondary winding of the ignition coil.
  • the first cylinder section comprises a first outer wall region, which has a recess for the passage of the winding wire from a contact element.
  • the first outer wall region prevents slippage of the winding from the bobbin. Particularly preferred is the
  • the first cylinder portion further comprises a first inner wall portion which is disposed adjacent to the windingless intermediate portion.
  • a radially outwardly projecting nose is provided, wherein the winding wire is guided around the nose and is guided over the intermediate portion to the second cylinder portion.
  • the projecting nose thus enables a secure guidance of the winding wire during the winding process and avoids an undesirable
  • the projecting nose is arranged offset in the circumferential direction to the slot-like channel.
  • the offset of the projecting nose is such that the protruding nose begins in the circumferential direction at a height on which a
  • Wall of the slot-like canal lies. This ensures that at a Lead around the winding wire around the protruding nose of the winding wire also abuts an edge of the slot-like channel to the intermediate portion and thus undesirable slipping of the winding wire can be avoided.
  • Outlet region on the slot-like channel provided an undercut, through which the Wckeldraht is then guided into the second cylinder section. This also avoids undesirable slipping of the Wckeldrahts.
  • Figure 1 is a schematic radial side view of an ignition coil
  • FIG. 2 shows an axial side view of the ignition coil of FIG. 1,
  • FIG. 3 is a perspective view of the ignition coil of FIG. 1;
  • Figure 4 is a radial side view of the ignition coil, wherein the guidance of the Wckeldrahts is illustrated in the ignition coil, and
  • Figure 5 is a radial side view of the ignition coil with wound
  • the ignition coil has a bobbin 2 and a Wcklung of a
  • the bobbin 2 has a first Cylinder portion 21, on which the first winding portion 61 is wound, and a second cylinder portion 22, on which the second winding portion 62 is wound, and an intermediate portion 23.
  • the intermediate portion 23 is disposed between the first and second cylinder portion 21, 22 and has no winding on.
  • the bobbin 2 comprises three main areas, namely the first one
  • the first and second cylinder sections 21, 22 each have according to the embodiment in the axial direction X-X of the bobbin
  • the intermediate portion 23 is significantly shorter in the axial direction.
  • the two cylinder sections 21, 22 also have the same diameter.
  • the first cylinder portion 21 has a length L1 in the axial direction which is the same length as a length L2 of the second cylinder portion 22 in the axial direction. In this way, a symmetrical bobbin structure can be achieved and the two Wckel Silvere on the first and second cylinder section 21, 22 are formed the same size.
  • a first outer wall portion 24 and a first inner wall portion 25 are further formed, which is a continuous
  • the second cylinder portion 22 includes a second outer wall portion 26 and a second inner wall portion 27, which is also a continuous one
  • Limit cylinder jacket surface 22a and form a second receptacle for the second winding portion 62 of Wcklung.
  • the winding is, for example, a secondary winding.
  • a channel 4 is formed, which extends from the intermediate portion 23 to the axial outside of the second cylinder portion 22.
  • the channel 4 is arranged parallel to the central axis X-X of the bobbin 2.
  • the channel 4 can also obliquely to the central axis X-X of the
  • the channel 4 serves to guide a winding wire 6 of the winding under the second Wckel Suite 62 of Wcklung.
  • a further cylinder section is arranged, which is connected in one piece with the cylinder sections 21, 22 of the bobbin 2 via webs extending in the radial direction. In the radial direction between the cylinder sections 21, 22 and the further cylinder section, a distance is provided.
  • Cylinder sections 21, 22 and the further cylinder section are arranged concentrically, for example.
  • a further winding for example a primary winding, is arranged on the further cylinder section.
  • the channel 4 is designed, for example, as a slot extending in the bobbin 2 from the intermediate portion 23 to the axial outside of the second cylinder portion 22.
  • the slot 4 also passes through the second inner wall portion 27, whereby this slit at one point
  • the slot 4 extends in the radial direction through the material of the cylinder portion 22 completely therethrough.
  • the slot 4 has in the region of the intermediate portion 23 extending in the circumferential direction undercut, whereby the Wckeldraht can create outside the slot 4 to the Wckel Scheme 62 facing away from the inner wall of the bobbin 2.
  • Bobbin 2 a receptacle 3 for a contact element and a
  • High voltage outlet 5 arranged.
  • the high voltage outlet 5 is on
  • Spool 2 executed in the intermediate portion 23, which corresponds for example to the center of the bobbin 2.
  • Figure 4 shows schematically how the Wckeldraht 6 is guided on the bobbin 2, to the bobbin 2, a first Wckel Trial 61 and a second
  • Cylinder section 21 out and wound there along a first continuous cylinder jacket surface 21 a to the first inner wall portion 25.
  • a radially projecting nose 7 is provided, wherein the winding wire 6 is guided around the nose 7 around and is guided transversely to the intermediate region 23 in the slot-like channel 4.
  • the Wckeldraht 6 is located at an edge 10, which at the mouth of the
  • the winding wire 6 is then guided in the axial direction along the channel 4 and guided at the outlet of the channel 4 from the second cylinder portion 22 via an undercut 8 on the second outer wall portion 26 to the second cylinder portion 22.
  • the undercut 8 may also be a projecting post or a protruding nose.
  • an ignition coil 1 can be provided in which a primary winding on the further cylinder section and a secondary winding on the cylinder sections 21, 22 are provided.
  • the two cylinder sections 21, 22 are formed with Zylinder vommänteln 21 a, 22 a, which can be made particularly simple and which simplify a Wcklung the ignition coil. Furthermore, the two cylinder sections 21, 22 are formed with Zylinder vommänteln 21 a, 22 a, which can be made particularly simple and which simplify a Wcklung the ignition coil. Furthermore, the two cylinder sections 21, 22 are formed with Zylinder vommänteln 21 a, 22 a, which can be made particularly simple and which simplify a Wcklung the ignition coil. Furthermore, the
  • the hot winding outlet is located in the middle of the ignition coil.
  • a uniform heat distribution at the ignition coil can be obtained.
  • the two Wcklungs Schemee 61, 62 are each wound from outside to inside.
  • the radially projecting nose 7 is arranged offset in the circumferential direction to the slot-like channel 4. The protruding nose 7 begins in
  • the ignition coil according to the invention is particularly preferably suitable for compact ignition coils.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

L'invention concerne une bobine d'allumage, comprenant un corps de bobine (2), un enroulement en fil enroulé (6) comportant une première zone d'enroulement (61) et une seconde zone d'enroulement (62), le corps de bobine (2) comprenant une première section cylindrique (21) sur laquelle est enroulée la première zone d'enroulement (61) et une seconde section cylindrique (22) sur laquelle est enroulée la seconde zone d'enroulement (62), et une section intermédiaire (23), la section intermédiaire (23) étant agencée entre les première et seconde sections cylindriques (21, 22), et la section intermédiaire (23) ne comportant aucun enroulement, et un canal en forme de fente (4) qui s'étend de la section intermédiaire (23) jusqu'à un côté extérieur de la seconde section cylindrique (22), la première section cylindrique (21) comportant une première surface extérieure cylindrique (21a) continue et la seconde section cylindrique (22) comportant une seconde surface extérieure cylindrique (22a) continue.
PCT/EP2011/068914 2010-11-11 2011-10-27 Bobine d'allumage au nombre d'éléments réduit WO2012062601A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BR112013011396A BR112013011396A2 (pt) 2010-11-11 2011-10-27 bobina de ignição com um número reduzido de componentes
CN201180054426.XA CN103201802B (zh) 2010-11-11 2011-10-27 具有减少的部件数量的点火线圈

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102010043764 2010-11-11
DE102010043764.6 2010-11-11
DE201110083442 DE102011083442A1 (de) 2010-11-11 2011-09-26 Zündspule mit reduzierter Bauteileanzahl
DE102011083442.7 2011-09-26

Publications (1)

Publication Number Publication Date
WO2012062601A1 true WO2012062601A1 (fr) 2012-05-18

Family

ID=45999085

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/068914 WO2012062601A1 (fr) 2010-11-11 2011-10-27 Bobine d'allumage au nombre d'éléments réduit

Country Status (4)

Country Link
CN (1) CN103201802B (fr)
BR (1) BR112013011396A2 (fr)
DE (1) DE102011083442A1 (fr)
WO (1) WO2012062601A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0325322A1 (fr) * 1988-01-19 1989-07-26 Philips Patentverwaltung GmbH Corps de bobine pour un transformateur à haute tension
US5315280A (en) * 1991-06-21 1994-05-24 Motorola Lighting, Inc. Bobbin for electrical windings
JPH11297551A (ja) * 1998-04-16 1999-10-29 Hanshin Electric Co Ltd 内燃機関の点火コイル用２次コイル
DE19850519A1 (de) 1998-11-03 2000-05-04 Bosch Gmbh Robert Zündvorrichtung für eine Brennkraftmaschine
EP1061352A2 (fr) * 1999-06-18 2000-12-20 Ngk Spark Plug Co., Ltd Cosse de bougie d'allumage et procédé d'assemblage d'une bougie d'allumage
US20020145498A1 (en) * 2001-04-04 2002-10-10 Ming Yeh Wire-winding structure and method for a transformer
DE10154798A1 (de) * 2001-11-08 2003-05-22 Bosch Gmbh Robert Zündvorrichtung für eine Brennkraftmaschine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7203795A (fr) * 1972-03-22 1973-09-25
JP2007201149A (ja) * 2006-01-26 2007-08-09 Hanshin Electric Co Ltd 分割巻ボビンに電線が巻回されたコイルおよび分割巻ボビンに電線が巻回されたコイル巻回方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0325322A1 (fr) * 1988-01-19 1989-07-26 Philips Patentverwaltung GmbH Corps de bobine pour un transformateur à haute tension
US5315280A (en) * 1991-06-21 1994-05-24 Motorola Lighting, Inc. Bobbin for electrical windings
JPH11297551A (ja) * 1998-04-16 1999-10-29 Hanshin Electric Co Ltd 内燃機関の点火コイル用２次コイル
DE19850519A1 (de) 1998-11-03 2000-05-04 Bosch Gmbh Robert Zündvorrichtung für eine Brennkraftmaschine
EP1061352A2 (fr) * 1999-06-18 2000-12-20 Ngk Spark Plug Co., Ltd Cosse de bougie d'allumage et procédé d'assemblage d'une bougie d'allumage
US20020145498A1 (en) * 2001-04-04 2002-10-10 Ming Yeh Wire-winding structure and method for a transformer
DE10154798A1 (de) * 2001-11-08 2003-05-22 Bosch Gmbh Robert Zündvorrichtung für eine Brennkraftmaschine

Also Published As

Publication number Publication date
CN103201802B (zh) 2016-06-08
CN103201802A (zh) 2013-07-10
DE102011083442A1 (de) 2012-05-16
BR112013011396A2 (pt) 2016-08-02

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