EP1611346A1 - Bobine d'allumage "crayon" a emboitement - Google Patents

Bobine d'allumage "crayon" a emboitement

Info

Publication number
EP1611346A1
EP1611346A1 EP04721173A EP04721173A EP1611346A1 EP 1611346 A1 EP1611346 A1 EP 1611346A1 EP 04721173 A EP04721173 A EP 04721173A EP 04721173 A EP04721173 A EP 04721173A EP 1611346 A1 EP1611346 A1 EP 1611346A1
Authority
EP
European Patent Office
Prior art keywords
ignition coil
shock
adapter
absorbing element
spark plug
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
EP04721173A
Other languages
German (de)
English (en)
Other versions
EP1611346B1 (fr
Inventor
Andreas Vom Schloss
Bernhard Stock
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.)
Audi AG
Original Assignee
Audi AG
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 Audi AG filed Critical Audi AG
Publication of EP1611346A1 publication Critical patent/EP1611346A1/fr
Application granted granted Critical
Publication of EP1611346B1 publication Critical patent/EP1611346B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • F02P13/00—Sparking plugs structurally combined with other parts of internal-combustion engines
    • 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
    • H01T13/02—Details
    • H01T13/04—Means providing electrical connection to sparking plugs
    • 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
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2823—Wires
    • H01F27/2828—Construction of conductive connections, of leads
    • 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 invention relates to a plug-on rod ignition coil for a motor vehicle with an ignition coil part having a spark plug receptacle for attachment to a spark plug.
  • the invention also relates to a plug-on rod ignition coil with an ignition coil part and an adapter with a spark plug receptacle for attachment to a spark plug.
  • Rod ignition coils are furthermore customary, in which the attachment to the spark plug takes place via an intermediate adapter.
  • the adapter is manufactured separately from the pencil ignition coil and then connected to the pencil ignition coil, if necessary only during assembly.
  • These adapters are made for different spark plugs or different plug shaft lengths in different sizes, so that the same ignition coil part can be used for all versions. Since these directly plugged-in and rigidly locked ignition coils do not have to be screwed to the engine, savings are made in assembly and maintenance.
  • the invention is based on the problem of specifying a pencil ignition coil which can be installed simply and safely without the risk of damage.
  • a shock-absorbing element is arranged in the region of the spark plug receptacle of the ignition coil part.
  • the shock-absorbing element absorbs the force peaks that have previously led to damage or destruction of the ignition coil part.
  • the pencil ignition coil is mechanically relieved and the impact energy or at least a substantial part of the impact energy is absorbed by the shock-absorbing element. Due to the deformation work, part of the kinetic energy is consumed when the pencil ignition coil is attached. A counterforce is also generated that is noticed by the person assembling the ignition coil so that it reduces their effort.
  • an inadvertent violent attachment is prevented, as a result of which damage is avoided.
  • shock-absorbing element can be deformed when the rod ignition coil is plugged onto the spark plug while consuming energy. Even greater protection against failures is achieved if the adapter and the ignition coil part are movable in the axial direction along a damping path relative to one another.
  • This development of the invention has the advantage that energy can be absorbed along the entire damping path.
  • the shock-absorbing element can be designed so that the pick-up force increases continuously. This results in a gradual transmission of force from the ignition coil part to the adapter, so that abrupt force peaks that could damage the components are avoided.
  • a socket is formed on the adapter or on the ignition coil part, into which a correspondingly oppositely configured plug section of the respective other part can be inserted.
  • the socket is preferably formed on the adapter.
  • the plug section of the ignition coil part is inserted into this socket.
  • the shock-absorbing element or, if appropriate, a second shock-absorbing element is arranged in the region of the spark plug receptacle.
  • the shock-absorbing element can either be arranged between the ignition coil part and the adapter or in the area of the spark plug receptacle of the adapter. It is also possible to combine both variants so that the adapter has a total of two shock-absorbing elements. If the shock-absorbing element is arranged in the area of the spark plug receptacle, it can be inserted or pressed in comparatively easily in the base area of the spark plug receptacle. At this point, a circumferential groove can also be provided, in which the shock-absorbing element can be held.
  • the adapter can advantageously be produced from metal or a metal alloy, in particular from a brass alloy that has good electrical conductivity. It can also be provided to combine different metals, e.g. B. a hard metal with a soft one.
  • shock absorbing element axially aligned. With this arrangement, it can optimally perform its damping function, since it lies in one axis with the acting push-on force.
  • the shock-absorbing element is preferably made of a rubber or silicone material. In principle, however, other materials such as plastic, metal, ceramic or sintered material are also suitable, with which the required damping effect can be achieved. Different materials can also be combined.
  • a shock-absorbing element that is electrically conductive so that it can transmit the ignition current is particularly preferred. In this way, the generation of undesired ignition sparks between the spark plug head and the plugged-on component (adapter or ignition coil part) can be effectively prevented.
  • shock-absorbing element is disc-shaped or roller-shaped.
  • Elements shaped in this way lie flush against the adapter or the ignition coil part, so that good power transmission is ensured.
  • they have the advantage that they are easy and inexpensive to manufacture.
  • the shock-absorbing element can be designed as a compression spring.
  • the compression spring can be moved along the damping path, which is due to the relative mobility between the adapter and the Ignition coil part is specified.
  • the shock-absorbing compression spring is compressed from the end of the assembly end position, so that a steadily increasing counterforce is generated, which prevents a mechanic from accidentally inserting the rod ignition coil with excessive force.
  • the power transmission between the pencil ignition coil or the ignition coil part and the adapter takes place largely via the compression spring, which leads to a more uniform increase in force. In this way, force peaks are absorbed and eliminated by the compression spring, so that damage to the components is excluded.
  • a particularly secure hold and good shock absorption can be achieved if the compression spring can be used with one end in a recess in the ignition coil part and with the other end in a recess in the adapter.
  • the compression spring is arranged parallel to the axis of the acting push-on force and can optimally perform its shock absorption function.
  • Figure 1 shows a first embodiment of the pencil ignition coil according to the invention, in which the shock-absorbing element is arranged in the region of the spark plug receptacle.
  • FIG. 2 shows a second exemplary embodiment of the pencil ignition coil according to the invention, in which the shock-absorbing element is arranged between the ignition coil part and the adapter;
  • Fig. 3 shows a third embodiment of the pencil ignition coil according to the invention, in which the shock-absorbing element is arranged in the spark plug receptacle; and Fig. 4 shows a fourth embodiment of the pencil ignition coil according to the invention, in which the shock-absorbing element is designed as a compression spring.
  • Fig. 1 shows a first embodiment of the invention, in which the shock-absorbing element is arranged in the region of the spark plug receptacle, in a partially sectioned side view.
  • the pencil ignition coil 1 essentially consists of an ignition coil part 24 which is connected to an electronic circuit (not shown) for generating the ignition signal and a housing 5 which protects and electrically insulates the internal components.
  • the pencil ignition coil 1 is connected to other engine units via cable connections, not shown.
  • the ignition coil part 24 and the housing 5 of the pencil ignition coil 1 are firmly connected to one another, so that shock forces which arise when the pencil ignition coil 1 is plugged onto the spark plug 3 are transmitted without damping.
  • the ignition coil part 24 has a circumferential groove 16 in the area of the spark plug receptacle 25, into which a disc-like shock-absorbing element 17 is inserted, which is held in the groove 16 in a form-fitting manner.
  • the shock absorbing element 17 is made of a rubber material that is electrically conductive.
  • Fig. 2 shows a second embodiment of the invention, in which the shock-absorbing element is arranged between the ignition coil part and the adapter.
  • the pencil ignition coil 1 with the adapter 2 is attached to a spark plug 3.
  • the individual parts are shown in a partially sectioned side view.
  • the pencil ignition coil 1 essentially consists of an ignition coil part 4 which is connected to an electronic circuit (not shown) for generating the ignition signal and a housing 5 which protects and electrically insulates the internal components.
  • the pencil ignition coil 1 is connected to other engine units via cable connections, not shown.
  • the pencil ignition coil 1 is connected to the adapter 2 via a plug-in or snap-in connection.
  • a bolt-like plug section 6 is formed, which has a circumferential groove 7.
  • the bolt-like plug section 6 is inserted into a receiving opening of the adapter 2.
  • This plug connection is secured by a securing element 10, which in the exemplary embodiment shown is designed as a resilient securing ring.
  • 2 shows on the right of an imaginary center line that the securing element is held in a groove on the outside of the adapter 2. To the left of an imaginary center line it is shown that this groove of the adapter 2 is interrupted in one section, so that the resilient securing element 10 is located at this point within the receiving opening of the adapter 2 and its cross section is reduced.
  • the displaceable distance corresponds to the width of the groove 7, which is designated by the letter d in FIG. 2. This distance is used when plugging the pencil ignition coil 1 onto the spark plug 3 to dampen a shock generated during assembly.
  • the distance d is typically 2 mm.
  • the adapter 2 is designed in its upper region as a socket 11, the diameter of which is adapted to the diameter of the plug section 6.
  • the socket 11 has a circular cross section in the illustrated embodiment.
  • the opposite side of the adapter 2 is designed as a spark plug receptacle 12.
  • a spring 13 In a section along the circumference of the adapter 2 there is a spring 13 which, in the installed state, bears positively on the SAE head of the spark plug 3 and prevents the adapter from being released from the spark plug 3.
  • a shock-absorbing element 14 is arranged between the end of the plug section 6 and the bottom of the socket 11. This element 14 has the shape of a thick disc and lies on its circumference on the inside of the socket 11.
  • the shock absorbing member 14 is made of a rubber material.
  • the ignition coil part 4 can be pressed further into the socket until the securing element 10 strikes the upper edge of the groove 7. In this way, the power transmission from the ignition coil part 4 via the securing element to the adapter 2 can take place.
  • Fig. 3 shows a third embodiment of the invention, in which the shock-absorbing element is arranged in the spark plug receptacle.
  • the adapter 2 has a circumferential groove 16 in the region of the spark plug receptacle 12, into which a disk-like shock-absorbing element 17 is inserted.
  • the element 17 is held positively in the groove 16. Since the shock-absorbing element 17 is considerably thinner than the shock-absorbing element 14, the damping path is also reduced accordingly.
  • the position of the shock-absorbing element 17 within the spark plug receptacle 12 is selected such that it bears against the end face of the SAE head 18 of the spark plug 3 in the installed state.
  • shock-absorbing element 17 it is also possible to deliver the shock-absorbing element 17 separately from the adapter 2, so that the customer or the mechanic who attaches the pencil ignition coil must first fix the shock-absorbing element 17 in the spark plug receptacle 12 of the adapter 2.
  • the force is transmitted from the ignition coil part 4 via the securing element 10 to the adapter 2. If the shock-absorbing element 17 within the spark plug receptacle 12 comes into contact with the head 18 of the spark plug, the shock is damped, so that no strong blow is transmitted to the sensitive components of the pencil ignition coil 1.
  • Fig. 4 shows a fourth embodiment of the invention, in which the shock-absorbing element is designed as a compression spring.
  • the ignition coil part 19 has a central recess 20 which is opposite a recess 21 of the adapter 22 in the installed state.
  • the ignition coil part 19 is connected to the adapter 22 via the securing element 10.
  • a compression spring 23 is inserted, which exerts a compressive force on the end faces of the recesses 20 and 21. Since the compression spring 23 is installed with a certain preload force, it is ensured that the ignition coil part 19 is electrically connected to the adapter 22 at all times via the compression spring 23. During operation, the ignition current flows through the compression spring 23.

Landscapes

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

Abstract

L'invention concerne une bobine d'allumage 'crayon' à emboîtement présentant une partie bobine d'allumage ainsi qu'un adaptateur pourvu d'un logement à bougie d'allumage et prévu pour être fixé sur une bougie d'allumage. Selon la présente invention, un élément amortisseur de chocs (14, 17, 23) est placé entre la partie bobine d'allumage (4) et l'adaptateur (2) et/ou l'adaptateur (2) et le logement à bougie d'allumage (12).
EP04721173.5A 2003-03-28 2004-03-17 Bobine d'allumage "crayon" a emboitement Expired - Lifetime EP1611346B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10314063A DE10314063B4 (de) 2003-03-28 2003-03-28 Aufsteckbare Stabzündspule
PCT/EP2004/002759 WO2004085837A1 (fr) 2003-03-28 2004-03-17 Bobine d'allumage 'crayon' a emboitement

Publications (2)

Publication Number Publication Date
EP1611346A1 true EP1611346A1 (fr) 2006-01-04
EP1611346B1 EP1611346B1 (fr) 2014-05-07

Family

ID=33016046

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04721173.5A Expired - Lifetime EP1611346B1 (fr) 2003-03-28 2004-03-17 Bobine d'allumage "crayon" a emboitement

Country Status (4)

Country Link
US (1) US7355500B2 (fr)
EP (1) EP1611346B1 (fr)
DE (1) DE10314063B4 (fr)
WO (1) WO2004085837A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004006705A1 (de) * 2004-02-11 2005-08-25 Robert Bosch Gmbh Stabzündspule
DE102005005057B4 (de) * 2005-02-03 2010-06-17 Beru Ag Steckverbindung zwischen der Sekundärspule einer Zündspule und einer Zündkerze
EP1732186A1 (fr) * 2005-06-11 2006-12-13 Delphi Technologies, Inc. Ensemble de connecteur électrique
HRP20070002A9 (en) * 2007-01-02 2008-02-29 Anđelić Ilija Eco fuel saver for vehicle
WO2010043543A1 (fr) * 2008-10-13 2010-04-22 Delphi Technologies, Inc. Configuration permettant le raccordement d'une électrode centrale de bougie d'allumage à une bobine d'allumage
WO2010046242A2 (fr) * 2008-10-21 2010-04-29 Delphi Technologies, Inc. Connecteur coaxial et récipient
ITTO20111098A1 (it) * 2011-11-29 2013-05-30 Eldor Corp Spa Gruppo di bobina di accensione con prolunga di collegamento elettrico di una candela di accensione
US11892875B2 (en) 2012-03-14 2024-02-06 Popsockets Llc Magnetic docking platform and detachable docking accessories
US10019034B2 (en) 2012-03-14 2018-07-10 Popsockets Llc Docking connector platform for mobile electronic devices
US9804636B2 (en) 2012-03-14 2017-10-31 David B. Barnett Docking connector platform for mobile electronic devices
EP3010091B1 (fr) * 2014-10-16 2017-05-24 Wolf Neumann-Henneberg Connecteur à fiches électrique
USD928771S1 (en) 2019-01-07 2021-08-24 Popsockets Llc Grip and stand accessory for personal electronic device

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US4090125A (en) * 1977-02-22 1978-05-16 Ambac Industries, Incorporated Ignition indicator for internal combustion engines
US4277724A (en) * 1979-10-18 1981-07-07 The Economy Engine Company Integral spark plug coil for automotive-type plug
US4446842A (en) * 1981-06-01 1984-05-08 Aisin Seiki Kabushiki Kaisha Ignition system
US5547387A (en) * 1993-08-05 1996-08-20 Sumitomo Wiring Systems, Ltd. Joint construction for ignition system
IT1260977B (it) * 1993-08-10 1996-04-29 Magneti Marelli Spa Bobina di accensione ad ingombro trasversale ridotto.
JP3556725B2 (ja) * 1995-03-20 2004-08-25 三菱電機株式会社 内燃機関の点火装置
US5535726A (en) * 1995-05-05 1996-07-16 Cooper Industries, Inc. Automotive ignition coil assembly
US5577921A (en) * 1995-06-16 1996-11-26 Caterpillar Inc. Electrical connector system for electrically connecting a voltage source to a spark plug terminal
JP3456152B2 (ja) * 1998-10-22 2003-10-14 株式会社デンソー 点火コイル
DE19857484C2 (de) * 1998-12-14 2002-04-18 Daimler Chrysler Ag Verbindungsstecker, insbesondere für Zündanlagen von Kraftfahrzeugen
DE19931979C2 (de) 1999-07-09 2002-12-12 Audi Ag Zündkerzenstecker
JP2001085139A (ja) * 1999-09-16 2001-03-30 Mitsubishi Electric Corp 内燃機関用点火装置の高圧接続部構造
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US6926266B1 (en) * 2004-02-13 2005-08-09 Delphi Technologies, Inc. Shock absorbing assembly for a pencil ignition coil

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See references of WO2004085837A1 *

Also Published As

Publication number Publication date
WO2004085837A1 (fr) 2004-10-07
EP1611346B1 (fr) 2014-05-07
DE10314063A1 (de) 2004-10-21
US20060214757A1 (en) 2006-09-28
DE10314063B4 (de) 2005-12-15
US7355500B2 (en) 2008-04-08

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