EP1611346B1 - Bobine d'allumage "crayon" a emboitement - Google Patents

Bobine d'allumage "crayon" a emboitement Download PDF

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Publication number
EP1611346B1
EP1611346B1 EP04721173.5A EP04721173A EP1611346B1 EP 1611346 B1 EP1611346 B1 EP 1611346B1 EP 04721173 A EP04721173 A EP 04721173A EP 1611346 B1 EP1611346 B1 EP 1611346B1
Authority
EP
European Patent Office
Prior art keywords
ignition coil
spark plug
adapter
shock absorbing
absorbing element
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 - Fee Related
Application number
EP04721173.5A
Other languages
German (de)
English (en)
Other versions
EP1611346A1 (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 - Fee Related legal-status Critical Current

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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 an attachable pencil ignition coil for a motor vehicle with an ignition coil part comprising a spark plug receptacle, which is designed for fastening the pencil ignition coil to an SAE head of a spark plug.
  • the invention relates to an attachable pencil ignition coil having an ignition coil part and an adapter with a spark plug receptacle, which is designed for attachment of the pencil ignition coil to an SAE head of a spark plug.
  • pencil ignition coils are common, in which the attachment to the spark plug via an intermediate adapter.
  • the adapter is manufactured separately from the pencil ignition coil and then, if necessary, also during assembly, connected to the pencil ignition coil.
  • These adapters are manufactured 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 and rigidly locked ignition coils screwing on the engine is unnecessary, resulting in savings in assembly and maintenance.
  • DE 199 31 979 A1 relates to a spark plug connector for transmitting the ignition current to a spark plug of an internal combustion engine.
  • an additional contact element is provided, which is biased by means of a spring element with respect to a front-side connecting piece of the spark plug.
  • this is about a spark plug connector, which is the tail of a high voltage cable for connection to a coil assembly.
  • US Pat. No. 6,491,531 B1 relates to a connector between an ignition coil and a spark plug.
  • the connector should be merged with the ignition coil to a pre-assembly.
  • This pre-assembly is placed in a continued set-up, so that ultimately the pre-assembly is placed on the ignition coil.
  • US 2001/0045800 A1 relates to a high voltage connector assembly of an ignition device for an internal combustion engine. It is a high voltage cable, wherein a spring element for generating a predetermined pressure, which is to provide a secure electrical connection, is present.
  • US 4,090,125 discloses an ignition system in which a sensor or detector is to be integrated in a shielded arrangement on the transformer.
  • US 5,535,736 relates to an arrangement consisting of a coil and a spark plug. This is to be installed as a one-piece unit, but still allow easy access to the spark plug. In doing so, sealants should not be damaged. There are provided elastomeric portions for sealing and friction mounting of the spark plug.
  • US 5,685,282 relates to an ignition device for an internal combustion engine.
  • a spark plug is connected via an adapter arrangement with an ignition coil. Vibrations that lead to poor electrical connections should be avoided by providing spring elements for improved electrical contact.
  • US 6,192,873 B1 discloses a pluggable ignition coil which is to be connected via a spring with a spark plug, not shown or described in detail.
  • a FrontalAuthierung is provided, wherein a spring is the better electrical contact.
  • US 4,831,995 relates to an integrated ignition-transformation assembly for the cylinder of a controlled ignition heat engine.
  • a spring is provided for better production of the electrical contact.
  • FR 2624559 A3 relates to an ignition coil, especially for racing engines. Again, a resilient device is provided to ensure proper electrical contact between a sliding part and the spark plug.
  • the invention is based on the problem to provide a pencil ignition coil that can be easily and safely mounted without the risk of damage.
  • an attachable pencil ignition coil of the type mentioned above that in the area of the spark plug receptacle of the ignition coil part a shock absorbing element which is formed when plugging the spark plug on the SAE head is arranged, which is disc-shaped.
  • the problem is solved in a pencil ignition coil with an adapter in that between the ignition coil and the adapter and / or the adapter and the spark plug recording a plugging the spark plug arranged on the SAE head shocks damping element is arranged, which is disc-shaped.
  • the shock absorbing element absorbs the force peaks, which have previously led to damage or destruction of the ignition coil.
  • the pencil ignition coil is mechanically relieved and the impact energy or at least a substantial portion of the impact energy is absorbed by the shock absorbing element.
  • a part of the kinetic energy is consumed when attaching the pencil ignition coil.
  • a counterforce is generated, which is noticed by the person who mounted the ignition coil, so that it reduces their effort.
  • shock-absorbing element is deformable upon insertion of the pencil ignition coil on the spark plug with energy consumption.
  • a socket to be formed on the adapter or on the ignition coil part, into which socket portion of the respective other part designed in the same manner can be inserted.
  • the socket is formed on the adapter.
  • the plug-in section used the ignition coil.
  • the shock-absorbing element or possibly a second shock-absorbing element is arranged in the region of the spark plug receptacle.
  • the shock absorbing member may be disposed either between the ignition coil part and the adapter or in the region 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 region of the spark plug receptacle, it can be comparatively easily inserted or pressed into the bottom area of the spark plug receptacle. At this point, a circumferential groove may be provided in which the shock absorbing element can be kept.
  • the adapter can be advantageously made of metal or a metal alloy, in particular of a brass alloy, which has a good electrical conductivity. It can also be provided to combine different metals, for. As a hard metal with a soft.
  • shock-absorbing element it is advisable to arrange the shock-absorbing element axially aligned. In this arrangement, it can optimally exert its damping function, since it lies in an axis with the acting Aufsteckkraft.
  • 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, with which the required damping effect can be achieved. Different materials can also be combined, conceivable z.
  • shock-absorbing element which is electrically conductive, so that it can transmit the ignition current. In this way, the generation of unwanted 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.
  • Such shaped elements are flush with the adapter or the ignition coil, so that a good power transmission is ensured.
  • they have the advantage that they are easy and inexpensive to produce.
  • Fig. 1 shows a first embodiment of the invention, in which the shock-absorbing element is arranged in the region of the spark plug, in a partially sectioned side view.
  • the pencil ignition coil 1 consists essentially of a Zündspulenteil 24 which is connected to an electronic circuit, not shown, for generating the ignition signal and a housing 5, which protects the inner components and electrically isolated.
  • the Stabzündspule 1 is connected via cable connections, not shown, to other motor units.
  • a spark plug receptacle 25 At the lower end of the ignition coil part 24 is a spark plug receptacle 25, which is plugged onto a spark plug 3.
  • the ignition coil part 24 and the housing 5 of the pencil ignition coil 1 are fixedly connected to each other, so that impact forces that occur when attaching the pencil ignition coil 1 to the spark plug 3 are transmitted undamped.
  • the ignition coil part 24 has in the region of the spark plug receptacle 25 on a circumferential groove 16, in which a disc-like shock-absorbing element 17 is inserted, which is held in the groove 16 positively.
  • the shock absorbing member 17 is made of a rubber material which is electrically conductive.
  • the force is transmitted from the SAE head of the spark plug 3 via the shock absorbing member 17 to the ignition coil 24.
  • the shock absorbing member 17 abuts the head of the spark plug 3, For example, part of the energy used to fit the pencil ignition coil 1 is converted into damping work.
  • Fig. 2 shows a second embodiment of the invention, in which the shock absorbing member between the ignition coil and the adapter is arranged. As in Fig. 2 can be seen, the pencil ignition coil 1 is attached to the adapter 2 on a spark plug 3. The items are shown in a partially sectioned side view.
  • the pencil ignition coil 1 consists essentially 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 the internal components and electrically isolated.
  • the Stabzündspule 1 is connected via cable connections, not shown, to other motor units.
  • the pencil ignition coil 1 is connected to the adapter 2 via a male or snap-in connection.
  • a bolt-like plug-in section 6 is formed, which has a circumferential groove 7.
  • the bolt-like plug-in section 6 is inserted into a receiving opening of the adapter 2.
  • This connector is secured by a securing element 10, which is formed in the illustrated embodiment as a resilient retaining ring.
  • a securing element 10 is formed in the illustrated embodiment as a resilient retaining ring.
  • Fig. 2 is shown to the right of an imaginary center line, that the securing element is held on the outside of the adapter 2 in a groove. Links of an imaginary center line is shown that this groove of the adapter 2 is interrupted in a section, so that the resilient securing element 10 is located at this point within the receiving opening of the adapter 2 and reduces its cross-section.
  • the displaceable distance corresponds the width of the groove 7, the in Fig. 2 is denoted by the letter d. This distance is used when attaching the pencil ignition coil 1 to the spark plug 3 for damping a shock generated during assembly.
  • the distance d is typically 2 mm.
  • the adapter 2 is formed in its upper region as a socket 11, the diameter of which is adapted to the diameter of the plug-in 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 is a spring 13, which rests positively in the installed state of the SAE head of the spark plug 3 and prevents the release of the adapter of the spark plug 3.
  • a shock absorbing member 14 is arranged between the end of the plug portion 6 and the bottom of the socket 11.
  • This element 14 has the shape of a thick disc and abuts 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 pushed further into the socket until the securing element 10 abuts against the upper edge of the groove 7. In this way, the power transmission from the ignition coil 4 via the fuse element to the adapter 2 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, in the region of the spark plug receptacle 12, a peripheral groove 16 into which a disk-like shock-absorbing element 17 is inserted.
  • the element 17 is held in the groove 16 positively. Since the shock absorbing member 17 is substantially thinner than the shock absorbing member 14, and the damping path is reduced accordingly.
  • the position of the shock-absorbing element 17 within the spark plug receptacle 12 is selected so that it rests in the installed state on the end face of the SAE head 18 of the spark plug 3.
  • shock absorbing member 17 separately from the adapter 2, so that the customer or the mechanic who attaches the pencil ignition coil must first secure the shock absorbing member 17 in the plug receptacle 12 of the adapter 2.
  • the power is transmitted from the ignition coil 4 via the fuse element 10 to the adapter 2.
  • the shock absorbing member 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 impact on the sensitive components of the pencil ignition coil 1 is transmitted.
  • Fig. 4 shows a fourth, not belonging to the invention embodiment 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 to a recess 21 of the adapter 22 in the installed state.
  • the ignition coil part 19 is connected via the securing element 10 with the adapter 22.
  • a compression spring 23 is used, 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 biasing force, it is ensured that the ignition coil part 19 is electrically connected to the adapter 22 at any time 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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Claims (10)

  1. Bobine d'allumage « crayon » enfichable, avec une partie de bobine d'allumage comprenant un logement de bougie d'allumage qui est conçu pour fixer la bobine d'allumage crayon à une tête SAE d'une bougie d'allumage, un élément (17) qui amortit des chocs apparaissant lors de l'enfichage du logement de bougie d'allumage (25) sur la tête SAE et qui est conçu en forme de disque étant agencé dans la zone du logement de bougie d'allumage (25) de la partie de bobine d'allumage (24).
  2. Bobine d'allumage « crayon » enfichable, avec une partie de bobine d'allumage et avec un adaptateur avec un logement de bougie d'allumage qui est conçu pour fixer la bobine d'allumage crayon à une tête SAE d'une bougie d'allumage, un élément (14, 17, 23) qui amortit des chocs apparaissant lors de l'enfichage du logement de bougie d'allumage (12) sur la tête SAE et qui est conçu en forme de disque étant agencé entre la partie de bobine d'allumage (4) et l'adaptateur (2) et/ou l'adaptateur et le logement de bougie d'allumage (12).
  3. Bobine d'allumage crayon, selon la revendication 2, caractérisée en ce que l'adaptateur (2) et la partie de bobine d'allumage (4) sont mobiles l'un par rapport à l'autre dans la direction axiale le long d'une course d'amortissement.
  4. Bobine d'allumage crayon, selon la revendication 2 ou 3, caractérisée en ce qu'une prise femelle (11), dans laquelle peut être enfiché un tronçon d'enfichage (6), conçu de manière complémentaire, de l'autre partie respective, est conçue sur l'adaptateur (2) ou sur la partie de bobine d'allumage (4).
  5. Bobine d'allumage crayon, selon l'une des revendications 2 à 4, caractérisée en ce que l'élément (17) amortissant des chocs ou le cas échéant un deuxième élément amortissant des chocs est agencé dans la zone du logement de bougie d'allumage (12).
  6. Bobine d'allumage crayon, selon l'une des revendications 2 à 5, caractérisée en ce que l'adaptateur (2) peut être fabriqué en métal ou en alliage métallique, notamment en un alliage de laiton.
  7. Bobine d'allumage crayon, selon l'une des revendications précédentes, caractérisée en ce que l'élément (14, 17, 23) amortissant des chocs peut se déformer avec une dispersion d'énergie lors de l'enfichage de la bobine d'allumage crayon (1) sur la bougie d'allumage (3).
  8. Bobine d'allumage crayon, selon l'une des revendications précédentes, caractérisée en ce que l'élément (14, 17, 23) amortissant des chocs est agencé suivant un alignement axial.
  9. Bobine d'allumage crayon, selon l'une des revendications précédentes, caractérisée en ce que l'élément (14, 17) amortissant des chocs est constitué de l'un des matériaux suivants : plastique, caoutchouc, silicone, métal, céramique, matériau fritté ou en une combinaison de ces matériaux.
  10. Bobine d'allumage crayon, selon l'une des revendications précédentes, caractérisée en ce que l'élément (14, 17) amortissant des chocs est électriquement conducteur.
EP04721173.5A 2003-03-28 2004-03-17 Bobine d'allumage "crayon" a emboitement Expired - Fee Related 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 EP1611346A1 (fr) 2006-01-04
EP1611346B1 true EP1611346B1 (fr) 2014-05-07

Family

ID=33016046

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04721173.5A Expired - Fee Related 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)

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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
US9804636B2 (en) * 2012-03-14 2017-10-31 David B. Barnett Docking connector platform for mobile electronic devices
US10019034B2 (en) 2012-03-14 2018-07-10 Popsockets Llc 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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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
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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
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US6926266B1 (en) * 2004-02-13 2005-08-09 Delphi Technologies, Inc. Shock absorbing assembly for a pencil ignition coil

Also Published As

Publication number Publication date
US7355500B2 (en) 2008-04-08
WO2004085837A1 (fr) 2004-10-07
DE10314063A1 (de) 2004-10-21
EP1611346A1 (fr) 2006-01-04
DE10314063B4 (de) 2005-12-15
US20060214757A1 (en) 2006-09-28

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