EP3069584A1 - Module électronique pour dispositif d'allumage - Google Patents

Module électronique pour dispositif d'allumage

Info

Publication number
EP3069584A1
EP3069584A1 EP14781224.2A EP14781224A EP3069584A1 EP 3069584 A1 EP3069584 A1 EP 3069584A1 EP 14781224 A EP14781224 A EP 14781224A EP 3069584 A1 EP3069584 A1 EP 3069584A1
Authority
EP
European Patent Office
Prior art keywords
housing
ignition coil
electronic module
ignition
potting compound
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Withdrawn
Application number
EP14781224.2A
Other languages
German (de)
English (en)
Inventor
Werner Steinberger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP3069584A1 publication Critical patent/EP3069584A1/fr
Withdrawn legal-status Critical Current

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
    • 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
    • F02P15/00—Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 and combined with layout of ignition circuits
    • F02P15/006—Ignition installations combined with other systems, e.g. fuel injection
    • 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
    • F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
    • F02P7/02—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of distributors
    • F02P7/04—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of distributors having distributors with air-tight casing
    • 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
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/0004—Casings, cabinets or drawers for electric apparatus comprising several parts forming a closed casing
    • H05K5/0008—Casings, cabinets or drawers for electric apparatus comprising several parts forming a closed casing assembled by screws
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0217—Mechanical details of casings
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0247—Electrical details of casings, e.g. terminals, passages for cables or wiring
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/06—Hermetically-sealed casings
    • H05K5/064—Hermetically-sealed casings sealed by potting, e.g. waterproof resin poured in a rigid casing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2400/00—Control systems adapted for specific engine types; Special features of engine control systems not otherwise provided for; Power supply, connectors or cabling for engine control systems
    • F02D2400/18—Packaging of the electronic circuit in a casing

Definitions

  • the present invention relates to an electronic module for an ignition unit.
  • the present invention relates to improvements in the
  • Ignition units are known in the art to be combustible
  • the ignition voltage is often generated by the intermediary of an ignition coil, which is housed in some embodiments in a separate housing or housing part.
  • an electronic module is connected to the ignition coil, wherein the electronic module in some embodiments has its own housing or a separate housing part.
  • the electronic module usually comprises an electronic board on which power electronics, for example in the form of an ignition IGBT, diagnostic electronics or a Multisparkan horrung executed. Conventionally, the electronic module is at the
  • Ignition coil housing bolted or fixed via a Ultraschallverschwei tion. Even if a separate embodiment of the housing (or housing parts) for the electronic module and the ignition coil unit means more components and a higher assembly costs, a better (modular) adjustment of the ignition unit to customer-specific wishes without changing the
  • Base ignition coil done. In addition to a mechanical connection of the two Gekorusemuss but an additional electrical contact between the electronic module and the ignition coil unit can be made. A thermal decoupling between the ignition coil unit and the
  • an electronic module for an ignition unit is proposed with a housing in which a receptacle for an electronic assembly is arranged.
  • Electronic assembly may be provided, for example, for controlling the ignition coil and comprise a circuit board or be configured substantially as a circuit board.
  • the ignition coil is not part of the
  • the housing of the electronic module according to the invention further has a mechanical interface for attachment to an ignition coil, in which the ignition coil is arranged.
  • the mechanical interface has a collar connected to the housing of the electronic module according to the invention.
  • the collar is set up to be materially connected to a potting compound to be filled into the ignition coil housing.
  • a cohesive connection does not exclude that a mechanical
  • Undercut or other suitable compounds are present or received by the potting compound.
  • a potting compound is used in particular for the electrical insulation of the ignition coil and leads to a higher mechanical strength of the assembly.
  • a potting compound is used in particular for the electrical insulation of the ignition coil and leads to a higher mechanical strength of the assembly.
  • Epoxy resin possibly with a filling material poured under low pressure into the housing to achieve a particularly complete filling.
  • the housing of the electronic module can also be equipped with a positioning device which is set up, the electrical interface and the mechanical interface with respect to the ignition coil housing in the course of a
  • the electronic module is attached in the course of the plug-in operation on an ignition coil unit and connected via electrical contacts with the ignition coil.
  • the electrical contacts can be arranged in such a way, in particular within a circumferential collar, that they are enclosed in a fluid-tight manner in the course of the plugging operation between the housing of the electronic module and the ignition coil housing.
  • Ignition coil housing via the potting compound materially connected, which an additional connection (for example, screw) is unnecessary and the optional
  • the electronic module according to the invention allows a cost-effective and easy to manufacture
  • Ignition unit in which uses the electronic module with a large variety of variants of the ignition coil unit and therefore different
  • Ignition units can be modularly realized.
  • the dependent claims show preferred developments of the invention.
  • an electrical interface is provided in the housing of the electronic module according to the invention for connecting the electronic assembly to an ignition coil.
  • This can be configured as part of a plug connection, so that when merging the housing of the electronic module according to the invention with the ignition coil housing the
  • the positioning device preferably has a latching element. It can the
  • the collar is adapted to be in a cavity of
  • Immerse ignition coil housing and in particular has a form-fitting undercuts favoring surface, preferably in the form of multiple openings and / or holes on.
  • the electronic module according to the invention comprises a filling channel which has a second opening facing the mechanical interface and a first opening opposite the second opening.
  • About the filling channel can pass a potting compound from the housing of the electronic module in a cavity within the ignition coil housing.
  • the potting compound is passed, for example, to the receptacle for the electronic module or to the electronic module of the electronic module and a separate filling of the ignition coil with the potting compound can be omitted. This also simplifies the manufacturing process of the electronic module according to the invention.
  • the second opening of the filling channel preferably has a structure projecting in the direction of the ignition coil housing, which is set up to dip into the casting compound to be filled. If the structure is executed circumferentially, the surface of the potting compound outside the filling channel is hermetically separated from the surface within the filling channel after filling, whereby the penetration of impurities and water is prevented.
  • the wall can, for example, represent a part of the filling channel and represent a kind of dam or overflow for filling compound filled in the first housing or in the receptacle. In this way it is ensured that when filling potting compound in the housing or in the receptacle, a suitable filling level of the potting compound is achieved before the potting compound can run over the filling channel in the ignition coil housing. If it is desired to fill the volume comprising the ignition coil with a first potting compound and the volume comprising the receptacle for the electronic assembly with a second potting compound of different material, no overflow is necessary. In this case, to facilitate the filling process, a kind of funnel can be provided at the first opening of the filling channel.
  • the filling channel can be oriented substantially in one direction of the plugging operation. If, for example, the electronics module is placed on the ignition coil unit from above, the filling channel for the ignition coil also runs Potting compound from top to bottom. In this way, the distributed
  • the housing of the electronic module according to the invention further comprises a circumferential collar, which in the housing
  • Filling channel encloses.
  • the circumferential collar during filling of the electronic module according to the invention serve to hold the potting compound over the electronics assembly in position.
  • a wall of the first opening Preferably, in the region of the first opening, a wall of the first opening
  • the housing of the electronic module according to the invention is set up, the ignition unit is mechanically connected to a periphery of the ignition unit, e.g. an engine block.
  • the housing in particular
  • Handling unit which reduces the costs to cover a required variety of variants.
  • Ignition coil housing selected such that a cavity for thermal insulation between the ignition coil and the receptacle for the electronics assembly remains.
  • the ignition coil is not completely with Filling compound filled, so that the surface of the potting compound does not directly adjoin an upper limit of that volume through which connects the ignition coil housing in the direction of the housing of the electronic module according to the invention. In this way, heating the ignition coil can only to a lesser extent heat the electronics assembly. Malfunctions or required power reductions of the electronic module can thus be avoided.
  • the collar of the mechanical interface is configured such that it forms a gap or a plurality of gaps, for example capillary gaps, in cooperation with the ignition coil housing or with a corresponding structure arranged thereon.
  • the collar of the mechanical interface can be provided, for example, as a proportionately or completely circumferential collar on the underside of the housing, which collar is arranged directly inside a corresponding collar provided on the ignition coil housing. The capillary action between these two aforementioned collar leads to the fact that filled potting compound over a large area leads to a cohesive connection between the housing and the ignition coil housing.
  • an ignition unit comprising an ignition coil unit having a
  • Ignition coil and an ignition coil housing and an electronic module proposed, with the above statements apply accordingly for the electronics module.
  • Electronic modules are inserted into each other via the mechanical interface and electrically contacted with each other.
  • a potting compound according to the invention a material and / or positive connection of the housing of the electronic module according to the invention and the ignition coil housing can be realized.
  • the ignition unit according to the invention is configured such that a filling channel is formed which is set up from a first cavity in the
  • the filling channel of the invention Ignition unit may be configured according to the embodiments in connection with the first-mentioned aspect of the invention.
  • a method of filling an ignition unit comprising an electronic module and a
  • Ignition coil unit proposed with a potting compound.
  • the ignition unit can, as described in connection with the second-mentioned aspect of the invention, be configured.
  • the potting compound is first measured according to the invention, so that there is a predefined amount of potting compound. The amount can be determined on the basis of the volumes to be filled in the first cavity and the second cavity. This can be done by calculation or by a trial or a series of experiments. To improve the
  • the ignition unit can now be evacuated.
  • the predefined amount potting compound is then poured into an upper cavity of the electronic module, so that a
  • Potting compound which runs into the lower cavity, are determined regardless of a curing position.
  • the overflow or the first opening of the filling channel is only to be defined in such a way that during casting a volume defined by the overflow of the channel remains in the upper cavity during the subsequent curing. This allows a simple filling of an ignition unit with a potting compound.
  • the overflow of the upper cavity opens into a channel which houses a housing of the electronic module and a
  • Ignition coil housing of the ignition coil unit connects to each other.
  • the channel is designed so that overflowing potting compound from the upper cavity automatically into the lower cavity within the
  • Ignition coil housing is running.
  • a connection via a filling channel allows a particularly process-reliable filling of both cavities.
  • Figure 1 is a perspective view of a first embodiment of an ignition unit according to the invention
  • Figure 2 is a perspective view of a second
  • Figure 3 is a perspective detail view of an embodiment of a channel with a drain for a potting compound
  • Figure 4 is a sectional side view of an embodiment of an ignition unit according to the invention, illustrating Vergussmassen spallrange;
  • Figure 5 is a flow chart illustrating steps of a
  • FIG. 1 shows an embodiment of an ignition unit 10 according to the invention, the ignition coil unit 30 and the electronic module 20 have not yet been assembled.
  • the housing 21 of the electronic module 20 has at its lower edge on a collar 25 which rotates a substantially square base.
  • the corners of the substantially square base are, for example, rounded, wherein at the rounded corners in each case a rib 26 is arranged as a positioning device.
  • a latching element of a latching connection can be provided at the corners.
  • Within the circumferential collar 25 are two in the direction of
  • Ignition coil unit 30 oriented electrical contacts 24 recognizable. By the ribs 26 of the collar 25, the electrical contacts 24 so
  • FIG. 1 shows in an upper part of a) a perspective top view of a
  • Electronic module according to FIG. 1 with an electronic assembly 23 arranged within a collar 40 and with a filling channel 28 arranged in a corner region of the collar 40.
  • the filling channel 28 is bounded laterally on the one hand by the collar 40 and on the other hand by a wall 28a forming a chord.
  • Filling channel 28 is arranged. In this case, the filling channel 28 runs on
  • Housing 21 integrally molded screw 43 allow mechanical fixing of the ignition unit 10 at a periphery of the ignition unit
  • the electronic module 20 has a housing 21 with a receptacle 22 for the electronic assembly 23.
  • the receptacle 22 is formed by the collar 40 and a bottom. At the receiving 22 remote from the underside of the bottom of the annular or rectangular circumferential
  • Collar 25 is arranged, which is the mechanical interface 25 for
  • the filling channel 28 according to the invention is arranged within the collar 40 of the receptacle 22, but is completely or at least partially separated from the receptacle 22.
  • the filling channel 28 according to the invention runs through the floor through into the area enclosed by the collar 25.
  • the filling channel 28 is provided in a corner of the collar 40, wherein a
  • Partition wall 28a extends from one side of the collar 40 to an adjacent side of the collar 40 and forms the filling channel 28 together with the collar 40.
  • electrical contacts 24 are provided which electrically connect the electronic assembly 23 with the ignition coil 41 via a plug connection when the electronic module 20 is fitted onto the ignition coil housing 31.
  • FIG. b In the lower part of figure b) is a partially cutaway perspective view of an ignition unit 10 is shown, in which the electronic module 20 with the Ignition coil unit 30 is connected.
  • the channel 28 is also cut open, so that it can be seen how it represents a continuous connection to a second (lower) opening 28c between an upper region of the electronic module 20 and a space containing the ignition coil 41 within the housing 31.
  • FIG. 3 shows a perspective top view of an electronics module 20 which is open at the top, wherein the first (upper) opening 28b of a channel 28 can be seen in detail.
  • the filling height of a potting compound, which is to be filled into the collar 40 for pouring the electronics assembly 23, is determined by a recess 29, via which a potting compound (not shown) can run through the channel 28 in the direction of the ignition coil 41 after reaching a predetermined level.
  • Figure 4 shows a sectional side view of the embodiment shown in Figure 2 b), in which levels F1, F2 for a potting compound within the collar 40 of the electronic module 20 and within a cavity of the ignition coil housing 31 of the ignition coil unit 30 are marked.
  • the filling level F1 is determined by the recess 29, while the filling level F2 is determined by the volume within the ignition coil housing 31 and the volume below the recess 29 within the housing 21 in conjunction with a predefined amount of potting compound.
  • a collar 42 as a protruding structure is arranged on a lower opening 28 c of the channel 28, that it is adapted to immerse in the discoursezulende potting compound within the volume within the ignition coil housing 31 and hermetically seal their surface au ßerrenz the channel, whereby a
  • FIG. 5 is a flow chart illustrating steps of FIG
  • step 100 an amount of a potting compound, which is to be filled in the ignition unit according to the invention, predefined. On the basis of desired filling heights F1, F2 and on the basis of the volumes to be filled and the position of the recess 29, the result to be achieved can be significantly influenced by the amount of potting compound.
  • step 200 the predefined amount of potting compound is poured into an upper cavity of the electronic module 20, so a part of the quantity of potting compound passes over an overflow of the upper cavity into a lower cavity of the ignition coil unit.
  • Curing compound hardens.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

L'invention concerne un module électronique (20) ainsi qu'un dispositif d'allumage (10) équipé d'un tel module électronique (20), comprenant : un boîtier (21) qui comporte un logement (22) pour un sous-ensemble électronique (23) et une interface électrique pour le raccordement à une bobine d'allumage (41). Le boîtier (21) comporte une interface mécanique (25) pour la fixation à un boîtier de bobine d'allumage (31). Selon l'invention, l'interface mécanique (25) possède en outre une collerette configurée pour être reliée par liaison de matières à une masse d'encapsulation destinée à remplir le boîtier de bobine d'allumage (31).
EP14781224.2A 2013-11-14 2014-10-08 Module électronique pour dispositif d'allumage Withdrawn EP3069584A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102013223185 2013-11-14
DE102014209185.3A DE102014209185A1 (de) 2013-11-14 2014-05-15 Elektronikmodul für eine Zündeinheit
PCT/EP2014/071497 WO2015071030A1 (fr) 2013-11-14 2014-10-08 Module électronique pour dispositif d'allumage

Publications (1)

Publication Number Publication Date
EP3069584A1 true EP3069584A1 (fr) 2016-09-21

Family

ID=51662126

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14781224.2A Withdrawn EP3069584A1 (fr) 2013-11-14 2014-10-08 Module électronique pour dispositif d'allumage

Country Status (6)

Country Link
US (1) US20160312756A1 (fr)
EP (1) EP3069584A1 (fr)
CN (1) CN105706538A (fr)
BR (1) BR112016010953A2 (fr)
DE (1) DE102014209185A1 (fr)
WO (1) WO2015071030A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6330686B2 (ja) * 2015-02-18 2018-05-30 株式会社オートネットワーク技術研究所 基板ユニット
USD786795S1 (en) * 2015-06-04 2017-05-16 Yi Zhang Ignition coil
CN107246347A (zh) * 2017-05-27 2017-10-13 蚌埠泰欣电子科技有限公司 一种车载式侧接线点火器
CN107035598B (zh) * 2017-05-27 2019-01-01 蚌埠泰欣电子科技有限公司 一种具有多向折叠接线装置的汽车点火器
IT201800007876A1 (it) * 2018-08-06 2020-02-06 Eldor Corp Spa Bobina di accensione per un motore endotermico e metodo di realizzazione della stessa
DE102022128732B3 (de) 2022-10-28 2023-12-21 Vega Grieshaber Kg Elektronikgehäuse zur Einhausung einer elektronischen Baugruppe sowie Verfahren zum Vergießen einer elektronischen Baugruppe

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DE29513874U1 (de) * 1995-08-30 1997-01-09 Robert Bosch Gmbh, 70469 Stuttgart Zündeinrichtung für Brennkraftmaschinen
EP1063425A3 (fr) * 1999-06-22 2002-09-25 Hitachi, Ltd. Dispositif d'allumage pour moteur à combustion interne
DE20020737U1 (de) * 2000-12-07 2002-04-18 Bosch Gmbh Robert Zündspule für Brennkraftmaschinen
US6427674B1 (en) * 2001-09-24 2002-08-06 Daimlerchrysler Corporation Socket coil-on-plug retainer
JP4960081B2 (ja) * 2006-12-28 2012-06-27 三菱電機株式会社 内燃機関用点火装置
US7928821B2 (en) * 2007-04-27 2011-04-19 Toyo Denso Kabushiki Kaisha Ignition coil
JP2009016374A (ja) * 2007-06-29 2009-01-22 Denso Corp 点火コイル
DE202009006940U1 (de) * 2009-04-16 2010-09-02 Eto Magnetic Gmbh Elektromagnetische Nockenwellen-Verstellvorrichtung
JP5532083B2 (ja) * 2011-10-06 2014-06-25 株式会社デンソー 内燃機関用点火コイル
JP5855899B2 (ja) * 2011-10-27 2016-02-09 日立オートモティブシステムズ株式会社 Ｄｃ−ｄｃコンバータ及び電力変換装置
CN202373442U (zh) * 2011-12-08 2012-08-08 浙江中奥泵业有限公司 带控制模块的点火线圈

Non-Patent Citations (1)

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See references of WO2015071030A1 *

Also Published As

Publication number Publication date
WO2015071030A1 (fr) 2015-05-21
CN105706538A (zh) 2016-06-22
BR112016010953A2 (pt) 2018-05-02
DE102014209185A1 (de) 2015-05-21
US20160312756A1 (en) 2016-10-27

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