EP1580771A2 - Zündspule and Verfahren zu ihrer Herstellung - Google Patents
Zündspule and Verfahren zu ihrer Herstellung Download PDFInfo
- Publication number
- EP1580771A2 EP1580771A2 EP05001212A EP05001212A EP1580771A2 EP 1580771 A2 EP1580771 A2 EP 1580771A2 EP 05001212 A EP05001212 A EP 05001212A EP 05001212 A EP05001212 A EP 05001212A EP 1580771 A2 EP1580771 A2 EP 1580771A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- hollow cylinder
- ignition coil
- housing
- edges
- windings
- 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- Withdrawn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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 6
- 238000000034 method Methods 0.000 title description 6
- 238000004804 winding Methods 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 7
- 238000002485 combustion reaction Methods 0.000 claims abstract description 3
- 239000007769 metal material Substances 0.000 claims abstract 3
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 238000001746 injection moulding Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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
-
- 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
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/266—Fastening or mounting the core on casing or support
-
- 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
Definitions
- the invention relates to an ignition coil for an internal combustion engine, formed in the manner of a candle shaft ignition coil is and a cylindrical housing made of a plastic material, a housing arranged in the hollow cylinder of a electrically conductive sheet material and primary and secondary windings has, which are arranged in the hollow cylinder.
- the housing which serves as a carrier for the internal components of the ignition coil, made by injection molding of a plastic material.
- the hollow cylinder which consists of an electrically conductive sheet material, in particular an electrical sheet and as magnetic Inference serves is made by rolling and in the manufacture of the ignition coil in, by injection molding prefabricated housing mounted.
- Another problem is the assembly of the hollow cylinder in prefabricated empty plastic housing.
- the object underlying the invention is therefore therein, an ignition coil of the type mentioned and a To provide processes for their preparation in which the above mentioned assembly problems in the production no longer occur and in particular damage to the paint insulation of Wires of the windings during their installation in the hollow cylinder can be avoided.
- the inventive method for producing such Ignition coil is characterized by the fact that before installation the windings of the hollow cylinder in an injection mold inserted and overmolded with the housing.
- Ignition coil which is designed in the manner of a plug shaft ignition coil is, from a cylindrical housing 1 made of a plastic material, which is produced by injection molding, a Hollow cylinder 2 made of an electric sheet, the magnetic Conclusion forms and is made by rolling, wherein the hollow cylinder 2 in the housing 1 and on the inside thereof is mounted, and the inner, not shown Components of the ignition coil, in particular the primary and secondary windings.
- the hollow cylinder 2 is in particular of several preferably two or three layers of an electric sheet running to To keep eddy current losses as low as possible.
- the ignition coil described above and shown in Fig. 2 according to the invention is prepared by a method at before the installation of the windings of the hollow cylinder 2 in a Injection mold is inserted and molded with the housing 1.
- this method can have a corresponding shaping of the injection mold can be achieved that the plastic mass all edges 3 of the hollow cylinder 1 in the illustrated in Fig. 2 Wrapped in a manner so that no danger to them Lackisolation of the winding wires when installing the windings especially the outer winding goes out.
- Another advantage is that they have been common until now related protective devices, such as protective films, which are arranged above the primary winding, no longer needed become.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
Description
Claims (4)
- Zündspule für eine Brennkraftmaschine, die nach Art einer Kerzenschachtzündspule ausgebildet ist unddadurch gekennzeichnet, dassein zylindrisches Gehäuse (1) aus einem Kunststoffmaterial,einen im Gehäuse (1) angeordneten Hohlzylinder (2) aus einem elektrisch leitenden Blechmaterial undPrimär- und Sekundärwicklungen aufweist, die im Hohlzylinder (2) angeordnet sind,die Kanten (3) des Hohlzylinders (2) an seinen axialen Stirnseiten durch Teile des Gehäuses (1) umhüllt sind.
- Zündspule nach Anspruch 1, dadurch gekennzeichnet, dass die Teile des Gehäuses (1), die die Kanten (3) des Hohlzylinders (2) umhüllen, an ihren Innenseiten abgerundet sind.
- Zündspule nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Hohlzylinder (2) aus mehreren, insbesondere zwei oder drei Langen des Blechmaterials gebildet ist.
- Verfahren zum Herstellen einer Zündspule nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass vor dem Einbau der Wicklungen der Hohlzylinder (2) in ein Spritzwerkzeug eingelegt und mit dem Gehäuse (1) umspritzt wird.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200410014934 DE102004014934B3 (de) | 2004-03-26 | 2004-03-26 | Zündspule und Verfahren zu ihrer Herstellung |
| DE102004014934 | 2004-03-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1580771A2 true EP1580771A2 (de) | 2005-09-28 |
| EP1580771A3 EP1580771A3 (de) | 2006-04-19 |
Family
ID=34854071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP05001212A Withdrawn EP1580771A3 (de) | 2004-03-26 | 2005-01-21 | Zündspule and Verfahren zu ihrer Herstellung |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1580771A3 (de) |
| DE (1) | DE102004014934B3 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004014934B3 (de) | 2004-03-26 | 2005-12-08 | Beru Ag | Zündspule und Verfahren zu ihrer Herstellung |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0898289A2 (de) * | 1997-08-07 | 1999-02-24 | Sumitomo Wiring Systems, Ltd. | Zündspule mit Ringmagnet |
| DE102004014934B3 (de) | 2004-03-26 | 2005-12-08 | Beru Ag | Zündspule und Verfahren zu ihrer Herstellung |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4446716C1 (de) * | 1994-12-16 | 1996-10-24 | Aeg Tro Transformatoren Gmbh | Isolieranordnung für magnetische Abschirmungen der Kesselwände von Transformatoren und Drosselspulen |
| JPH10199737A (ja) * | 1996-11-18 | 1998-07-31 | Matsushita Electric Ind Co Ltd | 内燃機関の点火コイル装置 |
| DE19702438C2 (de) * | 1997-01-24 | 1999-05-06 | Bremicker Auto Elektrik | Stabzündspule für Brennkraftmaschinen |
| DE29805372U1 (de) * | 1998-03-25 | 1999-08-05 | Robert Bosch Gmbh, 70469 Stuttgart | Stabspule für Zündanlagen |
| DE10257101B3 (de) * | 2002-12-05 | 2004-05-19 | Robert Bosch Gmbh | Stabzündspule |
-
2004
- 2004-03-26 DE DE200410014934 patent/DE102004014934B3/de not_active Expired - Fee Related
-
2005
- 2005-01-21 EP EP05001212A patent/EP1580771A3/de not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0898289A2 (de) * | 1997-08-07 | 1999-02-24 | Sumitomo Wiring Systems, Ltd. | Zündspule mit Ringmagnet |
| DE102004014934B3 (de) | 2004-03-26 | 2005-12-08 | Beru Ag | Zündspule und Verfahren zu ihrer Herstellung |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1580771A3 (de) | 2006-04-19 |
| DE102004014934B3 (de) | 2005-12-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| AX | Request for extension of the european patent |
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| PUAL | Search report despatched |
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| AK | Designated contracting states |
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| 17P | Request for examination filed |
Effective date: 20060512 |
|
| AKX | Designation fees paid |
Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR |
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| 17Q | First examination report despatched |
Effective date: 20070608 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20130801 |