EP0959481A2 - Zündspule für Zündanlagen - Google Patents
Zündspule für Zündanlagen Download PDFInfo
- Publication number
- EP0959481A2 EP0959481A2 EP99100806A EP99100806A EP0959481A2 EP 0959481 A2 EP0959481 A2 EP 0959481A2 EP 99100806 A EP99100806 A EP 99100806A EP 99100806 A EP99100806 A EP 99100806A EP 0959481 A2 EP0959481 A2 EP 0959481A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- ignition coil
- housing
- ignition
- output stage
- housing part
- 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.)
- Withdrawn
Links
Images
Classifications
-
- 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 is based on an ignition coil for ignition systems, especially as a pencil ignition coil in internal combustion engines the type of claim 1.
- an ignition coil has a cylindrical housing in the basic form.
- a Winding set arranged, consisting of a primary winding and there is a secondary winding, which windings each coaxially around a central elongated core magnetizable material are wrapped.
- the housing For the electrical control of the winding set is in the Housing an output stage as a power switching element brought in.
- the housing is electrical insulating, curable resin filled, which also the Winding set and the power amplifier envelops.
- the ignition coil according to the invention for ignition systems with the characteristic features of claim 1 has in contrast the advantage that the aforementioned inadequacy is avoided.
- the ignition coil is designed so that the output stage in a housing part is arranged, which of the housing and thus from the winding set arranged in this as the further heat source of the ignition coil is deposited.
- This Deposition is embodied by a separating element that Housing from the housing part and thus the two Heat sources thermally decoupled.
- An ignition coil 11 for ignition systems according to the figure in particular as a pencil ignition coil in internal combustion engines provided for direct contact with a spark plug, the in a usual and not shown manner in one Manhole in a cylinder head of an internal combustion engine is inserted.
- the ignition coil 11 can also be part of one several ignition coils composed of ignition coil module.
- the ignition coil 11 contains a coaxial arrangement Longitudinal axis 12 from an elongated cylindrical core 13 magnetizable material as part of an open Magnetic circuit. Concentric around the core 13 is one Low voltage leading primary winding 14 and, radially a high-voltage secondary winding 16 arranged. The two windings 14, 16 form together a winding set 17. With a radial distance to Secondary winding 16 is concentric with the longitudinal axis 12 as Inference element for the magnetic circuit a sleeve-shaped Yoke plate 18 attached.
- the outer end of the ignition coil 11 forms a cup-shaped housing 19 made of plastic, which in wide Areas has an annular cross-sectional area and with a wall 21 on the inside on the back plate 18 is present.
- the housing 19 closes in the figure shown end area with a front From opening 22 through which the housing 19 with Components of the ignition coil 11 can be equipped. In this The end region, the housing 19 is expanded radially.
- the wall 21 forms a bottom 23 of a laterally protruding, shaft-shaped connector 24 in the contact elements 26 for the low voltage supply of the Ignition coil 11 are introduced.
- the housing part 28 is when the ignition coil 11 is fitted with an output stage 31 in the form of a power transistor busy.
- the output stage 31 is used to control the current through the primary winding 14.
- the electrical connections of the Power stage 31 are with the primary winding 14 and Contact elements 26 of the connector 24 over Busbars 32 connected.
- the output stage 31 is only inside a limited operating temperature.
- An ignition coil 11 constructed in this way is economical manufacture advantageously and is due to the thermal Decoupling of the two heat sources even under unfavorable ones Operating conditions with regard to external heat in particular reliable.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
Description
Claims (5)
- Zündspule für Zündanlagen, insbesondere als Stabzündspule in Brennkraftmaschinen, mit wenigstens einem Wicklungssatz (17), der in einem Gehäuse (19) angeordnet ist und mit wenigstens einer Endstufe (31), dadurch gekennzeichnet, daß die Endstufe (31) in einem Gehäuseteil (28) angeordnet ist, das von dem Gehäuse (19) zur thermischen Entkopplung zumindest abschnittsweise durch ein Trennelement (27) abgesetzt ist.
- Zündspule nach Anspruch 1, dadurch gekennzeichnet, daß das Trennelement (27) aus einem Luftspalt besteht.
- Zündspule nach Anspruch 2, dadurch gekennzeichnet, daß das Trennelement (27) durch wenigstens ein Überbrückungselement (29) zwischen dem Gehäuse (19) und dem Gehäuseteil (28) unterteilt ist.
- Zündspule nach Anspruch 3, dadurch gekennzeichnet, daß das Überbrückungselement (29) aus schlecht wärmeleitendem Kunststoff besteht.
- Zündspule nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß das Gehäuse (19) und das Gehäuseteil (28) eine gemeinsame Aufnahmeöffnung (22) aufweist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1998122560 DE19822560A1 (de) | 1998-05-20 | 1998-05-20 | Zündspule für Zündanlagen |
DE19822560 | 1998-05-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0959481A2 true EP0959481A2 (de) | 1999-11-24 |
EP0959481A3 EP0959481A3 (de) | 2000-08-09 |
Family
ID=7868354
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99100806A Withdrawn EP0959481A3 (de) | 1998-05-20 | 1999-01-18 | Zündspule für Zündanlagen |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0959481A3 (de) |
JP (1) | JPH11345727A (de) |
DE (1) | DE19822560A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10102342A1 (de) * | 2001-01-19 | 2002-07-25 | Volkswagen Ag | Zündspule |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5558074A (en) * | 1994-07-28 | 1996-09-24 | Hitachi, Ltd. | Ignition device for internal-combustion engine |
US5628297A (en) * | 1995-04-24 | 1997-05-13 | Mitsubishi Denki Kabushiki Kaisha | Ignition apparatus for internal combustion engine |
US5662091A (en) * | 1995-04-24 | 1997-09-02 | Mitsubishi Denki Kabushiki Kaisha | Ignition apparatus for internal combustion engine |
-
1998
- 1998-05-20 DE DE1998122560 patent/DE19822560A1/de not_active Withdrawn
-
1999
- 1999-01-18 EP EP99100806A patent/EP0959481A3/de not_active Withdrawn
- 1999-05-19 JP JP11139116A patent/JPH11345727A/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5558074A (en) * | 1994-07-28 | 1996-09-24 | Hitachi, Ltd. | Ignition device for internal-combustion engine |
US5628297A (en) * | 1995-04-24 | 1997-05-13 | Mitsubishi Denki Kabushiki Kaisha | Ignition apparatus for internal combustion engine |
US5662091A (en) * | 1995-04-24 | 1997-09-02 | Mitsubishi Denki Kabushiki Kaisha | Ignition apparatus for internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
JPH11345727A (ja) | 1999-12-14 |
EP0959481A3 (de) | 2000-08-09 |
DE19822560A1 (de) | 1999-11-25 |
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