EP1598910B1 - Verbindungselement zur Verbindung einer Zündkerze und einer Zündspule - Google Patents
Verbindungselement zur Verbindung einer Zündkerze und einer Zündspule Download PDFInfo
- Publication number
- EP1598910B1 EP1598910B1 EP05101360A EP05101360A EP1598910B1 EP 1598910 B1 EP1598910 B1 EP 1598910B1 EP 05101360 A EP05101360 A EP 05101360A EP 05101360 A EP05101360 A EP 05101360A EP 1598910 B1 EP1598910 B1 EP 1598910B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spark plug
- ignition coil
- connection device
- elastic material
- connecting bolt
- 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.)
- Not-in-force
Links
- 239000013013 elastic material Substances 0.000 claims description 24
- 229920001296 polysiloxane Polymers 0.000 claims description 18
- 239000012212 insulator Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 description 10
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
Images
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
Definitions
- the invention is based on a connecting element for connecting a spark plug and an ignition coil to an ignition coil housing, wherein the connecting element has a receiving space for the connecting bolt of the spark plug and arranged on the receiving space contact element for making electrical contact with the connecting bolt of the spark plug with the ignition coil.
- Rod-type ignition coils usually use a shaft in the cylinder head above a spark plug as installation space.
- the known ignition coils on a screw or locking device.
- the motor in turn is equipped with a corresponding screw or latching device.
- These connecting elements for connecting the spark plug with the ignition coil require a mechanically complex processing and a variety of mechanical components.
- US 6,668,810 B1 discloses a Garseinichtung with a receiving space for the insulator region and the terminal bolt of the spark plug. Between the connecting bolt of the spark plug and the receiving space remains an air gap after assembly.
- EP 0 406 509 A1 and the JP 60198713 A In each case a receiving space for the connecting bolt is shown, which does not have the contour of the spark plug after mounting on the spark plug.
- the connecting element according to the invention is intended to reduce the number of mechanical components to be used and, with regard to the relative orientation and the distance to be maintained between the ignition coil contact and the connecting bolt, a spark plug permit a relatively large tolerance. This object is achieved by a connecting element according to claim 1.
- the subclaims relate to advantageous developments of the subject invention.
- a connecting element for connecting a spark plug and an ignition coil with a coil housing according to the aforementioned type, in which at least a portion of the ignition coil housing and at least the adjacent portion of the spark plug are enclosed by an insulating, elastic material, has the advantage that a conventional screw or locking device can be omitted and a very cost-effective solution is provided.
- the service life of the ignition coil is extended by providing decoupling or vibration damping between the engine and the ignition coil.
- the housing of the ignition coil can be substantially completely surrounded by the insulating, elastic material. As a result, a particularly good insulation is achieved.
- a receiving space for the insulator region of the spark plug may be preformed in the insulating elastic material.
- the receiving space for the connecting bolt of the spark plug is preformed with respect to this preferably tapered. This preforming facilitates the insertion of the spark plug or plugging the ignition coil, whereby the assembly is significantly simplified overall.
- the insulator region of the spark plug adjoining the connecting bolt can, in an advantageous embodiment of the invention, be enclosed by the insulating, elastic material.
- the contact element for making electrical contact with the connecting bolt of the spark plug with the ignition coil has an elastic contacting part.
- the elastic contacting part may have a spring contact, for example a compression spring.
- the elastic contacting part may be formed of an electrically conductive, elastic material and the receiving space for the connecting bolt of the spark plug may be preformed in the electrically conductive, elastic material. If the elastic contacting part is enclosed by the insulating, elastic material, additional mechanical or metallic contact elements are saved, and the production is further simplified.
- the insulating, elastic material may be a non-conductive silicone.
- the electrically conductive, elastic material may be an electrically conductive silicone.
- FIG. 1 shows in side view and in partial section a portion of a first embodiment of an inventive, provided with a spring contact 28 connecting element 1, wherein an ignition coil 12 is shown plugged into a spark plug 10 state.
- the ignition coil 12 has an ignition coil housing 14, which is substantially completely enclosed by an insulating, elastic silicone material 22. An adjacent portion of the spark plug 10 is also enclosed by the insulating, elastic silicone material 22. The ignition coil 12 is held by the silicone material 22 on the spark plug 10.
- the connecting element 1 has a receiving space 16 preformed in the silicone material 22 for a connecting bolt 18 of the spark plug 10.
- the terminal bolt 18 of the spark plug 10 is surrounded by and held by the insulating elastic silicone material 22.
- a compression spring contact 28 is provided as a contact element 20 for making electrical contact with the connecting bolt 18 of the spark plug 10 with the ignition coil 12.
- a portion of the ignition coil itself may be formed of the insulating, elastic silicone material.
- FIG. 2 shows in side view and in partial section a portion of the in FIG. 1 shown connecting element, wherein the state is shown in which the ignition coil 12 is not yet plugged onto the spark plug 10.
- the receiving space 16 for the connecting bolt 18 of the spark plug 10 is already preformed in the insulating, elastic silicone material 22.
- a receiving space 24 for an insulator region 26 of the spark plug 10 is preformed in the insulating elastic silicone material 22.
- the receiving space 16 for the connecting bolt 18 of the spark plug 10 is preformed with respect to this tapered.
- the silicone in the region of the connecting bolt 18 and in the insulator region 26 is elastically formed on the spark plug contour. This ensures a mechanically stable, axial and radial anchoring of the ignition coil 10 in a plug shaft of the associated internal combustion engine.
- FIG. 3 shows in side view and in partial section a portion of the in the FIGS. 1 and 2 shown connecting element 1, wherein the ignition coil 12 is shown in the plugged onto the spark plug 10, an angular position to this engaging state. Due to a predetermined installation situation in the engine, such an angular position can be realized due to the sufficient elasticity of the silicone material 22. However, the ignition coil 12 is still firmly held on the spark plug 10 and always contacted safely due to the compression spring contact 28.
- FIG. 4 shows in side view and in partial section a portion of a further embodiment of a connecting element 1 'according to the invention.
- the elastic contacting element 20 is formed by a region of electrically conductive silicone 30.
- the receiving space 16 for the connecting bolt 18 of the spark plug 10 in the electrically conductive, elastic material 30 is preformed.
- the contacting region made of electrically conductive silicone 30 is enclosed by the insulating elastic material 22.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410024540 DE102004024540A1 (de) | 2004-05-18 | 2004-05-18 | Verbindungselement zur Verbindung einer Zündkerze und einer Zündspule |
DE102004024540 | 2004-05-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1598910A1 EP1598910A1 (de) | 2005-11-23 |
EP1598910B1 true EP1598910B1 (de) | 2011-01-05 |
Family
ID=34938795
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05101360A Not-in-force EP1598910B1 (de) | 2004-05-18 | 2005-02-23 | Verbindungselement zur Verbindung einer Zündkerze und einer Zündspule |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1598910B1 (es) |
JP (1) | JP2005330965A (es) |
DE (2) | DE102004024540A1 (es) |
ES (1) | ES2357582T3 (es) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104205534B (zh) * | 2012-03-12 | 2016-08-31 | 日本特殊陶业株式会社 | 火花塞连接器具 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60198713A (ja) * | 1984-03-22 | 1985-10-08 | Sawafuji Electric Co Ltd | 内燃機関用点火コイルの製造方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1233310B (it) | 1989-06-09 | 1992-03-26 | Ubalit S P A | Metodo per la realizzazione di unita' conduttrici isolate colleganti elettricamente carichi elettrici con generatori di segnali elettrici e unita' ottenuta con tale metodo |
JP4431266B2 (ja) * | 2000-11-13 | 2010-03-10 | 日本特殊陶業株式会社 | 圧力センサ内蔵型スパークプラグユニット |
JP4237481B2 (ja) * | 2001-12-27 | 2009-03-11 | ダイヤモンド電機株式会社 | 内燃機関用点火コイル |
US6668810B1 (en) | 2002-11-06 | 2003-12-30 | Visteon Global Technologies, Inc. | Ignition coil assembly with spark plug connector |
DE10259545B3 (de) * | 2002-12-19 | 2004-05-19 | Robert Bosch Gmbh | Vorrichtung zur Übertragung einer Hochspannung |
-
2004
- 2004-05-18 DE DE200410024540 patent/DE102004024540A1/de not_active Withdrawn
-
2005
- 2005-02-23 EP EP05101360A patent/EP1598910B1/de not_active Not-in-force
- 2005-02-23 ES ES05101360T patent/ES2357582T3/es active Active
- 2005-02-23 DE DE200550010784 patent/DE502005010784D1/de active Active
- 2005-05-10 JP JP2005137616A patent/JP2005330965A/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60198713A (ja) * | 1984-03-22 | 1985-10-08 | Sawafuji Electric Co Ltd | 内燃機関用点火コイルの製造方法 |
Also Published As
Publication number | Publication date |
---|---|
ES2357582T3 (es) | 2011-04-27 |
DE502005010784D1 (de) | 2011-02-17 |
JP2005330965A (ja) | 2005-12-02 |
DE102004024540A1 (de) | 2005-12-15 |
EP1598910A1 (de) | 2005-11-23 |
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