WO2012136511A2 - Zündspule mit verbessertem wärmeverhalten - Google Patents
Zündspule mit verbessertem wärmeverhalten Download PDFInfo
- Publication number
- WO2012136511A2 WO2012136511A2 PCT/EP2012/055380 EP2012055380W WO2012136511A2 WO 2012136511 A2 WO2012136511 A2 WO 2012136511A2 EP 2012055380 W EP2012055380 W EP 2012055380W WO 2012136511 A2 WO2012136511 A2 WO 2012136511A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ignition coil
- core
- bobbin
- axial
- coil according
- Prior art date
Links
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
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
- H01F27/022—Encapsulation
-
- 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
Definitions
- the present invention relates to an ignition coil with improved thermo-mechanical robustness.
- DE 10 2008 040 858 A1 shows an ignition coil with an I-core arranged in a primary coil housing, which is surrounded by an O-core. After assembly, the
- the ignition coil according to the invention for an internal combustion engine with the
- an outer core is provided with a base region and a first and second leg, wherein a leg at least a first axial opening of the
- Axial direction apply a biasing force, whereby a seal of the bobbin and thus the therein I-core is made possible.
- the bobbin is clamped between the two legs, to prevent that in a potting potting in the
- the solution according to the invention is very simple and inexpensive executable, in particular, no additional components in comparison with the previously known ignition coils are necessary.
- the sealing of the bobbin according to the invention is carried out automatically during the assembly of the outer core.
- the bobbin may be formed as a unilaterally closed tubular element with an axial opening or alternatively be formed as a tubular element with two opposing axial openings.
- the first leg of the outer core preferably covers the first
- Axial opening and the second leg covers the second axial opening.
- At least one of the two legs touches an edge region at the axial openings of the bobbin.
- the bobbin is preferably substantially tubular, so that at the axial openings a
- an intermediate element which is arranged between the outer core and the bobbin, is provided, wherein the intermediate element covers one or both axial openings of the bobbin and is pressed by the two legs of the outer core against the axial openings.
- Intermediate element is preferably a part of an ignition coil, so that no separate component is necessary for the intermediate element.
- the I-core is preferably a roll core.
- the I-core can also be constructed from sheets or be designed as a sintered core.
- the I-core has an axial length equal to one
- Axial length of the bobbin or slightly shorter than this. In this way, a particularly simple and secure seal can be achieved at the axial openings of the bobbin and also at the same time the I-core can be clamped by the outer core.
- the outer core is arranged in a pocket in the ignition coil housing.
- the outer core can also be injected during a Spritzherstellvorgangs the ignition coil housing.
- the sealing means are formed by at least one annular or annular encircling increase or depression.
- the ignition coil is designed to be elastic in the acting as an intermediate element portion than in the remaining portion, since in this way a higher biasing force exerted on the bobbin and thus a better seal is achieved.
- the outer core may be formed as a C-core or as an O-core.
- the ignition coil is constructed such that the coil housing comprises a primary coil body, in which a primary coil is arranged, and a secondary coil body, in which a secondary coil is arranged.
- the I-core is then arranged in the primary coil body and the outer core seals on the primary coil body.
- the present invention is particularly preferably used in compact ignition coils for internal combustion engines.
- the invention relates to the use of an outer core in an ignition coil for sealing a bobbin, wherein an I-core is arranged in the bobbin, such that the core located in the bobbin I-core does not come into contact with a potting compound.
- Figure 1 is a schematic sectional view of an ignition coil according to
- Figure 2 is a schematic sectional view of the ignition coil of Figure 1 in a rotated by 90 ° cutting plane
- FIG. 3 is an enlarged fragmentary sectional view of the section of FIG.
- the ignition coil 1 comprises a bobbin 2, which in this exemplary embodiment is formed in two parts with a primary bobbin 3 and a secondary bobbin 4.
- a primary coil 13 is on
- Secondary coil body 4 is arranged.
- the primary coil body 13 is formed tubular from a plastic component, wherein an I-core 6 is disposed in the interior of the primary coil body 3.
- a length of the I-core 6 in the axial direction XX corresponds to a length of the primary bobbin 3 in the axial direction XX.
- the ignition coil 1 comprises an outer core 7, for example, a so-called C-core, with a base portion 70, a first leg 71 and a second leg 72.
- the outer core 7 can also be used as a
- the two legs cover a first axial opening 31 of the primary coil body 3 and a second axial opening 32 of the primary coil body 3 completely.
- the primary bobbin can also be provided as a tube closed on one side, the primary bobbin having a first axial opening 31 which is completely covered by one of the two legs.
- sealing means may be provided, which cooperate sealingly with the legs 71, 72 of the outer core 7 or with the intermediate element 81, 82.
- the sealing means are formed by at least one ring or around the axial opening 31, 32 encircling increase or depression. But it can also be two annularly around the axial opening 31, 32 provided increases, seen in the axial direction (XX), for example, have a different height and thereby ensure a seal when the biasing force deforms one of the increases such that their sealing effect is lost ,
- the outer core 7 is arranged in a pocket 9 in a housing 8 of the ignition coil.
- portions 81, 82 of the housing 8 are arranged as intermediate elements between the outer core 7 and the axial openings 31, 32.
- Ignition coil housing can in the region of acting as an intermediate element 81, 82
- Partial region be designed to be elastic than in the remaining section, for example by at least one elastic bulge, not shown, or
- the bag 9 is according to the embodiment outside of the
- Ignition coil housing 8 provided, but can also within the
- Ignition coil housing 8 may be formed.
- the ignition coil 1 still has a high-voltage outlet 10 and a plug 1 1.
- the reference numeral 5 indicates a potting compound, which encloses the bobbin 2 and the coils.
- the potting compound 5 is for example a casting resin.
- the I core allows shrinkage of the plastic components, since it is not embedded in a form-fitting manner in the housing or coil body via the casting resin.
- the solution according to the invention is very simple and inexpensive.
- the height of the bias voltage can be defined by the distance in the axial direction XX between the two legs 71, 72 or a length of the primary bobbin 3.
- the I-core 6 are sealed in the coil housing and complete decoupling of the inner I-core 6 from the potting compound 5 is achieved.
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)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201280017211.5A CN103443882B (zh) | 2011-04-04 | 2012-03-27 | 具有改进的热性能的点火线圈 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011006705.1 | 2011-04-04 | ||
DE102011006705 | 2011-04-04 | ||
DE201110082232 DE102011082232A1 (de) | 2011-04-04 | 2011-09-07 | Zündspule mit verbessertem Wärmeverhalten |
DE102011082232.1 | 2011-09-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2012136511A2 true WO2012136511A2 (de) | 2012-10-11 |
WO2012136511A3 WO2012136511A3 (de) | 2012-12-13 |
Family
ID=46845107
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2012/055380 WO2012136511A2 (de) | 2011-04-04 | 2012-03-27 | Zündspule mit verbessertem wärmeverhalten |
Country Status (3)
Country | Link |
---|---|
CN (1) | CN103443882B (de) |
DE (1) | DE102011082232A1 (de) |
WO (1) | WO2012136511A2 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014116139A1 (de) * | 2014-11-05 | 2016-05-12 | Epcos Ag | Induktives Bauelement |
CN205900290U (zh) * | 2016-07-23 | 2017-01-18 | 昆山凯迪汽车电器有限公司 | 点火线圈结构 |
DE102018130492B4 (de) * | 2018-11-30 | 2023-02-09 | Borgwarner Ludwigsburg Gmbh | Zündspule |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008040858A1 (de) | 2008-07-30 | 2010-02-04 | Robert Bosch Gmbh | Zündspule |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2646552B1 (fr) * | 1989-04-28 | 1995-07-21 | Marchal Equip Auto | Bobine d'allumage, en particulier pour moteur a combustion interne de vehicule automobile, et moyens de calibrage de l'entrefer du circuit magnetique |
DE29513874U1 (de) * | 1995-08-30 | 1997-01-09 | Bosch Gmbh Robert | Zündeinrichtung für Brennkraftmaschinen |
JPH11238637A (ja) * | 1998-02-23 | 1999-08-31 | Toyota Motor Corp | 点火装置 |
JP4209403B2 (ja) * | 2005-04-12 | 2009-01-14 | 三菱電機株式会社 | 内燃機関用点火装置 |
JP4805008B2 (ja) * | 2006-04-28 | 2011-11-02 | 東洋電装株式会社 | 二面開口型点火コイル装置 |
DE102006044435A1 (de) * | 2006-09-21 | 2008-03-27 | Robert Bosch Gmbh | Vorrichtung zur Energiespeicherung und Energietransformierung |
-
2011
- 2011-09-07 DE DE201110082232 patent/DE102011082232A1/de not_active Withdrawn
-
2012
- 2012-03-27 WO PCT/EP2012/055380 patent/WO2012136511A2/de active Application Filing
- 2012-03-27 CN CN201280017211.5A patent/CN103443882B/zh not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008040858A1 (de) | 2008-07-30 | 2010-02-04 | Robert Bosch Gmbh | Zündspule |
Also Published As
Publication number | Publication date |
---|---|
DE102011082232A1 (de) | 2012-10-04 |
CN103443882B (zh) | 2016-10-12 |
WO2012136511A3 (de) | 2012-12-13 |
CN103443882A (zh) | 2013-12-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3134670B1 (de) | Steckerbaugruppe | |
WO2012095252A1 (de) | Zündspule, insbesondere für kleinbauende motoren | |
WO2012136511A2 (de) | Zündspule mit verbessertem wärmeverhalten | |
EP3172428B1 (de) | Elektromagnetische stelleinheit für ein saugventil sowie saugventil | |
EP2884091B1 (de) | Brennstoffeinspritzventil | |
DE102006000427A1 (de) | Kraftstoffeinspritzventil | |
DE102014215589A1 (de) | Restluftspaltscheibe für eine Magnetbaugruppe eines Magnetventils und Verfahren zum Herstellen einer Restluftspaltscheibe | |
DE102014202334A1 (de) | Hochdruckpumpe für ein Kraftstoffeinspritzsystem | |
EP2891788B1 (de) | Brennstoffeinspritzventil | |
EP2986840B1 (de) | Magnetventil mit verbessertem öffnungs- und schliessverhalten | |
DE102015006517A1 (de) | Ventilmagnetschalter | |
DE10347768B4 (de) | Aufnahmehülse für einen Piezoaktor | |
EP3455487B1 (de) | Injektor mit verbessertem magnetaktor | |
DE112013000957T5 (de) | Kraftstoffeinspritzventil | |
DE102012101126B4 (de) | Elektrischer Drucktaster mit einem Dichtbalg und einer den Dichtbalg beaufschlagenden Feder sowie Verfahren zu dessen Montage | |
EP3685022A1 (de) | Stellvorrichtung, sowie kraftfahrzeug mit einer stellvorrichtung | |
DE10260349B4 (de) | Brennstoffeinspritzventil | |
DE102006052816A1 (de) | Brennstoffeinspritzventil | |
DE102017126332A1 (de) | Kraftstoffeinspritzventil | |
DE102012219261A1 (de) | Zündspule mit reduzierten thermomechanischen Spannungen | |
DE102016211689A1 (de) | Injektor mit Dämpfungselement | |
DE102021205042A1 (de) | Injektor mit integriertem Filter | |
DE102015226515A1 (de) | Brennstoffeinspritzventil | |
WO2014170049A1 (de) | MAGNETVENTIL MIT VERBESSERTEM ÖFFNUNGS- UND SCHLIEßVERHALTEN | |
WO2015132015A1 (de) | Zündspule mit überlappenden kernen |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 12713027 Country of ref document: EP Kind code of ref document: A2 |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112013025193 Country of ref document: BR |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 12713027 Country of ref document: EP Kind code of ref document: A2 |
|
ENP | Entry into the national phase in: |
Ref document number: 112013025193 Country of ref document: BR Kind code of ref document: A2 Effective date: 20130930 |