EP2742571A1 - Zündkerzenstecker - Google Patents
ZündkerzensteckerInfo
- Publication number
- EP2742571A1 EP2742571A1 EP12769589.8A EP12769589A EP2742571A1 EP 2742571 A1 EP2742571 A1 EP 2742571A1 EP 12769589 A EP12769589 A EP 12769589A EP 2742571 A1 EP2742571 A1 EP 2742571A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spark plug
- structural element
- plug
- ignition
- connector
- 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
Links
- 239000000463 material Substances 0.000 claims abstract description 24
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 17
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 17
- 239000012212 insulator Substances 0.000 claims description 12
- -1 polytetrafluoroethylene Polymers 0.000 claims description 8
- 239000004033 plastic Substances 0.000 claims description 7
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 6
- 239000003365 glass fiber Substances 0.000 claims description 6
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 239000012783 reinforcing fiber Substances 0.000 claims description 2
- 238000003860 storage Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 230000000717 retained effect Effects 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000004382 potting Methods 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 238000005382 thermal cycling Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- H01T13/02—Details
- H01T13/04—Means providing electrical connection to sparking plugs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
Definitions
- the invention relates to a spark plug connector comprising a plug body with a spark plug HochputsAuthtechnik für a spark plug, designed as an insulator, one on the
- Ignition voltage source to the spark plug.
- spark plugs Under a spark plug and spark plug extensions or ignition coil extensions and the like are to be understood, which serve to contact spark plugs of all types. Among spark plugs u.a.
- spark plugs for generating a high-voltage spark to understand.
- Next spark plugs are also other ignition means to understand that serve the ignition of a gas or fuel-air mixture in the combustion chamber of an engine.
- Spark plug plugs transmit ignition voltages of up to 50,000 volts from an ignition coil to the spark plug and are designed to operate under extreme conditions
- the insulators of spark plug connectors have to withstand about 10,000 to 40,000 volts permanently, possibly even peak values of 50,000 volts, and are made according to the state of the art over the entire length of high-quality, expensive PTFE.
- the insulator simultaneously forms the mechanically supporting structure of the plug.
- a spark plug is known inter alia from DE 196 1 12 83 C1. It is known an ignition connection for internal combustion engines with a spark plug, wherein the spark plug with a plug contact for the
- the spark plug also consists of the following features in the combination:
- the spark plug is made of a one-piece, rigid and carrying plug sleeve made of an insulating material with high melting point and high dielectric strength, such as polytetrafluoroethylene (PTFE), wherein the
- Plug sleeve in the plug shaft of an engine cylinder sealed against this and is designed to be elastically guidable.
- the plug sleeve is also sealed against the inserted into it ceramic shaft of the spark plug and elastically feasible.
- a ceramic inlet is provided in the plug sleeve, which has the plug contact and the ignition cable connection, wherein the
- Plug contact and the Zündschian gleich are so isolated embedded in Keramikinlet that the ceramic in the axial direction over the plug contact and the connection for the ignition cable.
- the insulator is a hollow body and the electrical functional part is inserted in the hollow body in a potting compound, characterized in that the insulator Polyphenylene sulfide consists of glass fiber content.
- Ignition cable connection which has a large shaft length and at his Spark plug remote end has a Aufsteckadapter that is to seal the deep candle niche of the motor housing and supports the long spark plug socket shaft.
- the plug connector shaft is not broken down into a plug body and a structural element inserted therein, but has a
- Two-layer structure namely an inner insulating body with an elastic insulating sleeve.
- DE 36 00 509 A1 describes a spark plug, which is indeed divided into three longitudinal sections, but the upper in the figure
- Longitudinal section is not used to guide and support an ignition cable, but is part of the spark plug, to which the ignition cable is connected.
- US 2,685,872 relates to a spark plug having a two-part insulating body, wherein the combustion chamber may be further part made of a less expensive material.
- this document does not describe a spark plug connector, nor a separately applied structural element for supporting / guiding the ignition cable.
- EP 2 204 888 A1 describes a plug-type connecting part in order to be able to connect an ignition cable to a spark plug.
- This plug-like component has an insulating body as G monharzform Huawei with an elastic sheath. However, the component is not divided into a plug body and a thereto prolonged attached structural element.
- Spark plug connectors are currently manufactured in lengths of up to one meter and, for example, are made entirely of polytetrafluoroethylene (PTFE), which leads to considerable costs. Due to their heavy weight, the spark plug connectors are vulnerable strong engine vibrations, whereby their life is severely limited. At the same time, however, the spark plug connectors must be able to insulate high voltages, so that there are special requirements for these spark plug connectors in terms of strength, weight and, in particular, insulating capability.
- the present invention is based on the object, a
- spark plug which makes it possible to reduce the stress of spark plug connectors due to mass vibrations, while the insulating effect is to be realized at a very high level.
- the material costs should be as low as possible, but the service life should be increased.
- Spark plug Hochputs ists-distant side for receiving, storage and / or connection of a firing plug expanding structural element, and that the structural element is arranged at the connection point such that the structural element of the plug body on the
- spark plug HochputsCount ists-far side extended wherein the ignition cable is held and / or guided by the structural member over its length, wherein the material of the structural member has a higher rigidity and higher specific strength and / or a lower density than the material of the plug body, the weight of the entire spark plug significantly reduced compared to the known in the prior art spark plug, but the properties of a conventional plug body are retained, in particular, the component strength is not limited.
- the component strength is not limited.
- the material of the plug body is ceramic and / or a plastic, in particular polytetrafluoroethylene (PTFE).
- the material of the structural element is a plastic,
- reinforcing fibers more preferably one
- High-performance plastic with an impact strength of 9 to 12 kJ / m 2 , a heat resistance up to about 260 ° C and / or a high
- Plug body guided within the structural element, wherein preferably the Zündtent admirer is formed within the structural element as a channel, particularly preferably as a closed channel, and
- the ignition cable is thus optimally supported in the structural element, which wear is counteracted due to vibration and elevated temperatures at the ignition cable.
- connection point or the connecting element forms a permanent connection between the plug body and the structural element, wherein the connection of the plug body and the structural element is produced by an adhesive bond, a screw connection, a bayonet connection, a compression and / or a welding, then a coherent connection is established realized.
- An appropriate design can also on the Junction remote side be provided to secure the structural element.
- Spark plug HochputsAuthiser has a cable outlet, preferably the cable outlet firmly locks the ignition cable and / or seals against external influences, particularly preferably designed as a silicone or rubber grommet, on the one hand a good fit guaranteed and on the other hand, the inner life is against external influences protected.
- the structural element has a fastening and / or holding means for fastening and / or lateral guidance of the
- Structural element at a fixed relative to the spark plug point, preferably on the engine, more preferably in or on the spark plug shaft, shaft and / or valve cover, wherein the attachment is preferably designed as a flange.
- the flange serves as a catch and baffle plate for explosively ejected in the case of engine malfunction
- a rubber grommet or a rubber cap is used for guiding or fixing.
- Fig. 1 is a schematic representation of a first embodiment of the spark plug according to the invention
- Fig. 2a is a schematic representation of the invention
- Fig. 2b is a schematic representation of the invention
- Fig. 3 is a schematic representation of the invention
- Fig. 4 is a schematic representation of the invention
- Spark plug connector in a sectional view with a flange and an end rubber cap
- Fig. 5 is a schematic representation of the invention
- Rubber cap and a rubber grommet Rubber cap and a rubber grommet.
- Fig. 0 is a schematic representation of a spark plug connector of the closest prior art is shown.
- the spark plug connector 1 consists of a plug body 21 which is formed as an insulator. In the interior of the plug body 21, an ignition cable 3 is guided, that directs the ignition voltage from a Zündnapssario 5 to the spark plug 6. In the interior, a Entstörcic 33 is still shown, wherein the Entstörcic 33 has an integrated suppression element 331.
- the material of the plug body 21 is made of polytetrafluoroethylene (PTFE). This material is designed over the entire length of the plug body 21. The length of such a spark plug connector 1 can be up to one meter. However, the cost of such a designed connector body 21 are already very high on the material side, which is why cheaper alternatives
- the spark plug 1 has a seal, which at the same time ensures that no impurities enter the interior of the plug body 21 and further held the ignition cable 3 or strain relief.
- Fig. 1 is a schematic representation of a first embodiment of the spark plug according to the invention 1 is shown.
- the spark plug connector 1 now has two different regions: a first region, the plug body 21, which in the prior art according to FIG. 0 is similar to the first 10 to 20 cm (proximity to the spark plug), and a second region, the structural element 22 ,
- the structural element 22 is at a connection point or via a
- Plug body 21 as shown in FIG. 0 and illustrated.
- the plug body 21 is also off in this embodiment
- PTFE Polytetrafluoroethylene
- the structural element 22 is made in this embodiment
- Polyphenylene sulfide with a glass fiber content of 40% (GF40) and forms a retaining, inferior insulating structural element 22 from.
- Structural element 22 is a mechanically supporting part and serves to guide and position the ignition cable 3, less the insulation of the
- Fig. 2a is a schematic representation of the invention
- the structural element 22 essentially has the components which have already been set forth from FIG. In particular, the transition region to the plug body, namely the connection point 23, is shown here.
- the connection of the structural element 22 with the plug body 21 can take place, for example, via a detent, a screw connection, a bayonet closure, a clamping or a gluing.
- the materials can also have a
- the structural element 22 is in particular in a preferred embodiment dimensionally stable, has a material melting point of about 280 ° C and is insensitive to chemicals.
- the structural element 22 can be particularly cost-effective in
- Injection molding can be made and used in different
- Length gradations are kept in stock on stock.
- Fig. 2b is a schematic representation of the invention
- Plug body 21 (insulator) for a spark plug 1 shown.
- the plug body 21 essentially has the elements which are known from FIG. 0, supplemented by the connection point or the connecting element 23.
- the sleeve consists in particular of polytetrafluoroethylene (PTFE).
- FIG. 3 is a schematic representation of the invention
- Spark plug connector 1 shown in a sectional view.
- the ignition cable 3 consists essentially of a high voltage conductor 31 and a
- the potting material 4 is to mention that is preferably used here.
- the electrical functional part is embedded in a separate insulating sleeve. All other essential elements of the invention are already in the preceding
- Fig. 4 the inventive spark plug 1 is shown in a sectional view with a flange 72 and an end rubber cap 71.
- This metal flange 72 serves for
- the spark plug 1 has an end rubber cap 71, which is angled in this embodiment by 90 ° and so the ignition cable 3 at the upper end of the spark plug 1 at an angle of 90 ° from the spark plug 1 leads.
- Fig. 5 shows a schematic representation of the invention
- Spark plug 1 in a sectional view with an end rubber cap 71 and a rubber grommet 73rd
- the seal at the end of the spark plug 1 is made with an end rubber cap 71, which protects the interior of the spark plug 1 from contamination and the like.
- a rubber grommet 73 is provided or pushed on the structural element 22.
- the rubber grommet 73 may be configured differently. Both length and circumference and material of the rubber grommet 73 can on the
- the rubber grommet 73 serves to fix and guide the spark plug 1 in the plug shaft of the engine. LIST OF REFERENCE NUMBERS
Landscapes
- Ignition Installations For Internal Combustion Engines (AREA)
- Spark Plugs (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202011050966U DE202011050966U1 (de) | 2011-08-11 | 2011-08-11 | Zündkerzenstecker |
PCT/DE2012/100231 WO2013020552A1 (de) | 2011-08-11 | 2012-08-02 | Zündkerzenstecker |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2742571A1 true EP2742571A1 (de) | 2014-06-18 |
EP2742571B1 EP2742571B1 (de) | 2014-10-29 |
Family
ID=44974229
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12769589.8A Active EP2742571B1 (de) | 2011-08-11 | 2012-08-02 | Zündkerzenstecker |
Country Status (4)
Country | Link |
---|---|
US (1) | US9160120B2 (de) |
EP (1) | EP2742571B1 (de) |
DE (2) | DE202011050966U1 (de) |
WO (1) | WO2013020552A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101765262B1 (ko) * | 2015-06-25 | 2017-08-07 | 한국산업안전보건공단 | 폭발시험용 일체형 스파크 플러그 |
US20150380155A1 (en) * | 2015-09-13 | 2015-12-31 | Perkins Engines Company Limited | Coil assembly for an engine |
CN105870781A (zh) * | 2016-05-05 | 2016-08-17 | 广西玉柴机器股份有限公司 | 一种重型气体发动机用高压导线 |
US9923300B2 (en) * | 2016-05-18 | 2018-03-20 | Marshall Electric Corp. | Semi-rigid high-voltage extender |
CN106410610B (zh) * | 2016-11-08 | 2018-05-11 | 广西玉柴机器股份有限公司 | 气体发动机高压导线 |
DE102018108292B4 (de) * | 2017-11-17 | 2023-05-11 | Borgwarner Ludwigsburg Gmbh | Verbindungsstecker zum Anschließen einer Zündspule an eine Zündkerze sowie Schutzrohr für einen Verbindungsstecker |
CN114284816B (zh) * | 2021-12-13 | 2024-05-03 | 陕西航空电气有限责任公司 | 一种航空发动机点火***用转接头 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2685872A (en) | 1951-11-19 | 1954-08-10 | Charles V Hoke | Spark plug with improved insulator means |
US2904769A (en) * | 1953-07-10 | 1959-09-15 | Gen Motors Corp | Spark plug nipple |
US2762021A (en) * | 1955-02-18 | 1956-09-04 | Auburn Spark Plug Co Inc | Spark plug terminal connector |
DE2261103A1 (de) * | 1972-12-14 | 1974-06-20 | Kabel Metallwerke Ghh | Zuendkerzenstecker fuer verbrennungsmotoren |
DE3302878A1 (de) | 1983-01-28 | 1984-08-02 | Robert Bosch Gmbh, 7000 Stuttgart | Zuendkerzenstecker |
DE3600509A1 (de) | 1985-05-31 | 1986-12-04 | Robert Bosch Gmbh, 7000 Stuttgart | Zuendkerzenstecker |
JPH0425813Y2 (de) | 1988-10-04 | 1992-06-22 | ||
DE19611283C1 (de) | 1996-03-22 | 1997-10-23 | Florian Virchow | Zündkerzenstecker für einen Verbrennungsmotor |
US7147493B1 (en) * | 2005-08-22 | 2006-12-12 | The Bg Service Co., Inc | Connector for an igniter cable |
JP5237835B2 (ja) | 2009-01-06 | 2013-07-17 | 日本特殊陶業株式会社 | プラグキャップ及びその取付構造 |
DE102009048801B4 (de) * | 2009-10-08 | 2022-06-23 | Andreas Stihl Ag & Co. Kg | Zündkerzenstecker und Anordnung einer Zündkerze und eines Zündkerzensteckers |
DE102010016881A1 (de) | 2010-05-11 | 2011-11-17 | Motortech Gmbh | Herstellungsverfahren für elektrisches Bauteil sowie elektrisches Bauteil |
-
2011
- 2011-08-11 DE DE202011050966U patent/DE202011050966U1/de not_active Expired - Lifetime
-
2012
- 2012-08-02 US US14/127,591 patent/US9160120B2/en active Active
- 2012-08-02 EP EP12769589.8A patent/EP2742571B1/de active Active
- 2012-08-02 DE DE112012003324.8T patent/DE112012003324A5/de not_active Withdrawn
- 2012-08-02 WO PCT/DE2012/100231 patent/WO2013020552A1/de active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2013020552A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20140154901A1 (en) | 2014-06-05 |
US9160120B2 (en) | 2015-10-13 |
DE112012003324A5 (de) | 2014-04-30 |
WO2013020552A1 (de) | 2013-02-14 |
EP2742571B1 (de) | 2014-10-29 |
DE202011050966U1 (de) | 2011-10-13 |
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