DE29805372U1 - Rod coil for ignition systems - Google Patents
Rod coil for ignition systemsInfo
- Publication number
- DE29805372U1 DE29805372U1 DE29805372U DE29805372U DE29805372U1 DE 29805372 U1 DE29805372 U1 DE 29805372U1 DE 29805372 U DE29805372 U DE 29805372U DE 29805372 U DE29805372 U DE 29805372U DE 29805372 U1 DE29805372 U1 DE 29805372U1
- Authority
- DE
- Germany
- Prior art keywords
- housing
- return plate
- rod coil
- core
- coil
- 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 - Lifetime
Links
- 238000004804 winding Methods 0.000 claims description 9
- 239000012212 insulator Substances 0.000 claims description 8
- 238000002485 combustion reaction Methods 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 244000309464 bull Species 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000005266 casting Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
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
- F02P3/00—Other installations
- F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils
-
- 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
-
- 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
- H01F2038/122—Ignition, e.g. for IC engines with rod-shaped core
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Description
R. 33512R. 33512
20.03.98 Gf/Hx20.03.98 Gf/Hx
ROBERT BOSCH GMBH, 70442 StuttgartROBERT BOSCH GMBH, 70442 Stuttgart
Stabspule für Zündanlagen
Stand der Technik Rod coil for ignition systems
State of the art
Die Erfindung geht aus von einer Stabspule für Zündanlagen, insbesondere als Zündspule in Brennkraftmaschinen von
Kraftfahrzeugen nach der Gattung des Anspruchs 1.The invention relates to a rod coil for ignition systems, in particular as an ignition coil in internal combustion engines of
Motor vehicles according to the preamble of claim 1.
Durch die DE 41 32 851 Al ist eine Stabspule bekannt, die
ein in der Grundform zylindrisches Gehäuse aufweist. In dem
0 Gehäuse und innerhalb eines Wicklungssatzes ist in zentraler Lage ein stabförmiger Kern eines offenen Magnetkreises
angeordnet. Zur Führung des Magnetfeldes ist der
Wicklungssatz unter Zwischenlage eines Isolators von einem
längsgeschlitzten Rückschlußblech konzentrisch umgeben, das an der inneren Umfangsoberflache des Gehäuses montiert ist.DE 41 32 851 Al discloses a rod coil which
has a cylindrical housing in its basic form. In the housing and within a winding set, a rod-shaped core of an open magnetic circuit is located in a central position
To guide the magnetic field, the
Winding set with an insulator between them from a
concentrically surrounded by a longitudinally slotted return plate which is mounted on the inner peripheral surface of the housing.
Die Herstellung einer solchermaßen aufgebauten Stabspule ist fertigungstechnisch ungünstig, da der Isolator, das
Rückschlußblech und das Gehäuse voneinander einzeln zuThe manufacture of a rod coil constructed in this way is unfavorable from a manufacturing point of view, since the insulator, the
Return plate and the housing separately from each other
0 handhabende Teile sind, die räumlich einander zugeordnet0 handling parts that are spatially assigned to each other
werden müssen.Need to become.
Wird der Isolator, der üblicherweise durch ein dünnwandiges Kunststoffrohr verkörpert ist, wie im obengenannten Stand
5 der Technik alternativ durch eine Schicht ausIf the insulator, which is usually embodied by a thin-walled plastic tube, as in the above-mentioned
5 of the technology alternatively by a layer of
• ··
R. 33512R. 33512
Kunstharzmaterial gebildet, so wird die Fertiung der Stabspule weiter erschwert, da die Stabspule aus Einbaugründen in radialer Richtung eng geschachtelt gebaut ist. Dadurch ist es fertigungstechnisch schwierig, diesen engen Hohlraum in einer kleinen Taktzeit lunkerfrei mit Gießharz zu verfüllen.If the rod coil is made of synthetic resin material, the production of the rod coil is made even more difficult because the rod coil is built in a tightly packed radial direction for installation reasons. This makes it difficult from a manufacturing point of view to fill this narrow cavity with casting resin in a short cycle time without any cavities.
Vorteile der ErfindungAdvantages of the invention
Die erfindungsgemäße Stabspule für Zündanlagen mit den kennzeichnenden Merkmalen des Anspruchs 1 hat demgegenüber den Vorteil, daß die zuvor erwähnten Unzulänglichkeiten vermieden werden. Dazu ist die Stabspule so ausgebildet, daß das Rückschlußblech von dem Gehäuse umschlossen ist und das Gehäuse zugleich den Isolator bildet. Dadurch sind diese Funktionselemente zu einem Bauteil vereinheitlicht und die Fertigung der Stabspule gegenüber dem Stand der Technik vereinfacht.The rod coil for ignition systems according to the invention with the characterizing features of claim 1 has the advantage that the previously mentioned deficiencies are avoided. For this purpose, the rod coil is designed in such a way that the return plate is enclosed by the housing and the housing simultaneously forms the insulator. As a result, these functional elements are unified into one component and the manufacture of the rod coil is simplified compared to the prior art.
0 In dem Unteranspruch ist eine vorteilhafte Ausgestaltung für die Realisierung der Erfindung angegeben.0 The subclaim specifies an advantageous embodiment for the realization of the invention.
Zeichnung
&Idigr; drawing
&Idigr;
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und in der Figurenbeschreibung näher erläutert. Die Figur zeigt die Stabspule in einer Schnittdarstellung.An embodiment of the invention is shown in the drawing and explained in more detail in the figure description. The figure shows the rod coil in a sectional view.
Beschreibung des Ausführungsbeispiels 30Description of the embodiment 30
Eine Stabspule 11 für Zündanlagen nach der Figur, insbesondere als Zündspule in Brennkraftmaschinen von Kraftfahrzeugen, ist zur Direktkontaktierung mit einer Zündkerze 12 vorgesehen, die in üblicher und nicht mehrA rod coil 11 for ignition systems according to the figure, in particular as an ignition coil in internal combustion engines of motor vehicles, is intended for direct contact with a spark plug 12, which in the usual and no longer
R. 33512R. 33512
dargestellter Weise in einem Schacht im Zylinderkopf einer Brennkraftmaschine eingesetzt ist.shown is inserted into a shaft in the cylinder head of an internal combustion engine.
Die Stabspule 11 enthält in koaxialer Anordnung zu einer Längsachse 13 unter anderem in einem Gehäuse 14 aus Kunststoff in zentraler Lage einen länglichen, zylindrischen Kern 16, der auch als I-Kern bezeichnet wird. Der Kern besteht aus geschichtetem magnetischem Material und ist Teil eines offenen Magnetkreises.The rod coil 11 contains, in a coaxial arrangement to a longitudinal axis 13, among other things, in a housing 14 made of plastic in a central position an elongated, cylindrical core 16, which is also referred to as an I-core. The core consists of layered magnetic material and is part of an open magnetic circuit.
10
Konzentrisch um den Kern 16 ist innenliegend eine Niederspannung führende Primärwicklung 17 und außenliegend
eine Hochspannung führende Sekundärwicklung 18 angeordnet. Die Wicklungen 17, 18, die zusammen einen Wicklungssatz
bilden, sind zur Führung des Magnetfeldes von einem Rückschlußblech 21 umgeben, daß in einer hülsenförmigen
Wandung 22 des Gehäuses 14 im Kunststoffspritzverfahren eingesetzt ist.10
A low-voltage primary winding 17 and a high-voltage secondary winding 18 are arranged concentrically around the core 16. The windings 17, 18, which together form a winding set, are surrounded by a return plate 21 for guiding the magnetic field, which is inserted into a sleeve-shaped wall 22 of the housing 14 using the plastic injection molding process.
Im Bereich des Rückschlußbleches 21 ist die Wandung gegliedert in eine erste Teilwandung 23, die an dem Rückschlußblech 21 innenliegend, zum Kern 16 hinweisend, angebracht ist und in eine zweite Teilwandung 24, die das ' Rückschlußblech 21, das in nicht dargestellter Weise parallel zur Längsachse 13 geschlitzt ist, um einen Kurzschluß des Magnetfeldes zu verhindern, außenliegend abdeckt.In the area of the return plate 21, the wall is divided into a first partial wall 23, which is attached to the return plate 21 on the inside, pointing towards the core 16, and a second partial wall 24, which covers the return plate 21 on the outside, which is slotted parallel to the longitudinal axis 13 in a manner not shown in order to prevent a short circuit of the magnetic field.
Die erste Teilwandung 23 bildet einen Isolator 26, der sicherstellt, daß die benachbarte Hochspannung in der Sekundärwicklung 18 nicht zu dem elektrisch leitfähigen Rückschlußblech 21 durchschlägt und dieses eine Kurzschlußbrücke für die Sekundärwicklung 18 bildet.The first partial wall 23 forms an insulator 26, which ensures that the adjacent high voltage in the secondary winding 18 does not penetrate to the electrically conductive return plate 21 and that this forms a short-circuit bridge for the secondary winding 18.
R. 33512R. 33512
Mit der Zusammenfassung der Funktionselemente Isolator 26, Rückschlußblech 21 und Gehäuse 14 zu einem Montageteil ist ein Aufbau der Stabspule 11 verwirklicht, der eine einfache, funktionssichere Fertigung der Stabspule 11 ermöglicht.By combining the functional elements insulator 26, back plate 21 and housing 14 into one assembly part, a structure of the rod coil 11 is realized which enables a simple, functionally reliable production of the rod coil 11.
Claims (2)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29805372U DE29805372U1 (en) | 1998-03-25 | 1998-03-25 | Rod coil for ignition systems |
| PCT/DE1998/003664 WO1999049212A1 (en) | 1998-03-25 | 1998-12-14 | Rod coil for ignition systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29805372U DE29805372U1 (en) | 1998-03-25 | 1998-03-25 | Rod coil for ignition systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE29805372U1 true DE29805372U1 (en) | 1999-08-05 |
Family
ID=8054721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE29805372U Expired - Lifetime DE29805372U1 (en) | 1998-03-25 | 1998-03-25 | Rod coil for ignition systems |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE29805372U1 (en) |
| WO (1) | WO1999049212A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004014934B3 (en) * | 2004-03-26 | 2005-12-08 | Beru Ag | Ignition coil and method for its production |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0462359U (en) | 1990-10-03 | 1992-05-28 | ||
| DE4330072A1 (en) * | 1993-09-06 | 1995-03-09 | Bayerische Motoren Werke Ag | Ignition coil set for multi-cylinder internal combustion engines |
| JP3165000B2 (en) * | 1995-04-21 | 2001-05-14 | 株式会社日立製作所 | Ignition device for internal combustion engine |
| DE69723337T2 (en) * | 1996-03-21 | 2004-04-15 | Hitachi, Ltd. | Igniter for an internal combustion engine |
-
1998
- 1998-03-25 DE DE29805372U patent/DE29805372U1/en not_active Expired - Lifetime
- 1998-12-14 WO PCT/DE1998/003664 patent/WO1999049212A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004014934B3 (en) * | 2004-03-26 | 2005-12-08 | Beru Ag | Ignition coil and method for its production |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1999049212A1 (en) | 1999-09-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R207 | Utility model specification |
Effective date: 19990916 |
|
| R150 | Utility model maintained after payment of first maintenance fee after three years |
Effective date: 20010918 |
|
| R151 | Utility model maintained after payment of second maintenance fee after six years |
Effective date: 20040716 |
|
| R158 | Lapse of ip right after 8 years |
Effective date: 20061003 |