EP2232645A2 - Stecker - Google Patents
SteckerInfo
- Publication number
- EP2232645A2 EP2232645A2 EP08860085A EP08860085A EP2232645A2 EP 2232645 A2 EP2232645 A2 EP 2232645A2 EP 08860085 A EP08860085 A EP 08860085A EP 08860085 A EP08860085 A EP 08860085A EP 2232645 A2 EP2232645 A2 EP 2232645A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel injector
- connection component
- adhesive
- electrical connection
- electrical
- 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- Withdrawn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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/005—Arrangement of electrical wires and connections, e.g. wire harness, sockets, plugs; Arrangement of electronic control circuits in or on fuel injection apparatus
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5216—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases characterised by the sealing material, e.g. gels or resins
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
- H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
- H01R4/242—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members being plates having a single slot
- H01R4/2425—Flat plates, e.g. multi-layered flat plates
- H01R4/2429—Flat plates, e.g. multi-layered flat plates mounted in an insulating base
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/01—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for connecting unstripped conductors to contact members having insulation cutting edges
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/26—Connectors or connections adapted for particular applications for vehicles
Definitions
- DE 196 50 865 Al relates to a solenoid valve for controlling the fuel pressure in a control chamber of an injection valve, such as a common rail injection system, for supplying self-igniting internal combustion engines with fuel.
- a stroke movement of a valve body is controlled with an injection port of the injection valve is opened or closed.
- the solenoid valve comprises an electromagnet, a movable armature and a valve member moved with the armature and acted upon by a valve closing spring in the closing direction and cooperating with the valve seat of the valve member to control the fuel output from the control chamber.
- WO 03/038844 A1 relates to a reduced-mass magnet coil carrier. It is proposed a magnet assembly comprising a magnetic coil which is surrounded by a magnet pot. The magnetic coil is electrically conductively connected to contact lugs. A gap between the outside of the magnetic coil and the inside of the magnet pot is formed such that a flowable material is castable in this.
- the Magnetic coil is surrounded by a thin-walled bobbin on which tubular contact guide elements are formed.
- the thin-walled coil carrier is made of a mixed with mineral fillers, temperature-resistant plastic material.
- DE 197 14 812 A1 relates to a magnetic coil.
- the magnetic coil is formed by a winding wire which is wound on a winding support.
- a solenoid coil is used, inter alia, in solenoid valves that are used in fuel pumps of internal combustion engines for controlling the flow rate and the delivery process.
- the solenoid valves are at least partially flowed around by high-pressure fuel.
- it is necessary to encapsulate the solenoid.
- solenoid valves with extremely short switching times are required. The short switching times cause the magnet coil to heat up during operation and therefore to ensure heat dissipation at the magnet coil, since its thermal load during operation is unfavorable.
- the present invention is based on the object to unify the assembly process of fuel injectors, in particular the execution of an electrical contact of a fuel injector and to accelerate.
- an electrical connection component in particular a plug
- the electrical connection component designed in particular as a plug is prefabricated in all variants of the design requested by the customer, which takes place by means of injection molding and at the end of the assembly line the injection valve or the Kraftstoff ⁇ njektor preferably adhered by a thermally curing one-component epoxy resin adhesive.
- the manufacture of the electrical connection component, in particular of a plug can be outsourced by overmolding and thus the critical encapsulation process from the assembly line, whereas the attachment of the electrical connection component, which is preferably designed as a plug, a carried out within the assembly line Work step remains.
- the interface is uniform, ie designed independently of customer variations, set-up times, which otherwise occur with each type of plug with regard to a conversion of the injection molding tool, can be saved.
- the term "interface” below refers to both the geometry of a mechanical interface, for example the plug and fuel injector geometry of the plug, and the electrical contacting. This means that the fuel injector can ideally always be carried out uniformly.
- the connection geometry of the plug with respect to the fuel injector as well as the area or the geometry for inclusion in the joining device are also uniform. This can be achieved as a striking advantage that only one joining device is needed. Customer-specific differences in connector geometry must not affect these areas.
- the assembly process can be standardized and in particular shortened.
- the parameters with which the respective injection molding process is carried out are no longer limited due to the component to be electrically contacted, and therefore to be provided with the connector to be molded, be it an injection valve or a fuel injector.
- the injection pressure can be significantly increased, whereby the overall dimensional or dimensional accuracy of the electrical connection component designed in particular as a plug can be significantly improved.
- the electrical connection component which is preferably designed as a plug
- the electrical connection component is prefabricated independently of the assembly line in which the injection valves or fuel injectors are mounted.
- An interface to the injection valve or the fuel injector is uniformly designed to avoid set-up times regardless of other customer-specific variations.
- the connection ie the attachment of the electrical connection component, which is preferably designed as a plug on the body of the injection valve member or the fuel injector is carried out by the cohesive joining method of bonding.
- the adhesive used, at -A- it is preferably a thermally curing one-component Epoxidharzklebestoff is, in addition to the holding function additionally assumes a sealing function and a potting function for the isolation of the contact point.
- the adhesive used may be viscous or in film form.
- the electrical contact can be performed on the internal fuel injector.
- access holes e.g. introduced a viscous adhesive.
- the prefabricated electrical connection component is introduced.
- the insulation displacement contact takes place in the still uncured adhesive.
- the adhesive is pressed into the gap between the plug and the access bore region on the fuel injector or on the injection valve.
- the adhesive has a holding, sealing and potting function for electrical insulation.
- the adhesive may also be injected following the joining process, i. after the electrical connection components are plugged into the access holes in the injector or injector body.
- the curing of the adhesive can be accelerated chemically, thermally or in other ways.
- the curing of the cohesive adhesive bond is preferably carried out inductively accelerated, so that the process time can be accelerated.
- FIG. 1 shows a section through a magnet assembly, in particular for actuating a fuel injector
- FIG. 3 shows a cross section through the head of a fuel injector
- FIG. 4 shows an adhesive injected in an insulation-displacement connection shown in cross-section
- Figure 5 shows a section in plan view through the electrical contact at the head of the fuel injector
- FIG. 1 shows a magnet assembly 10, which comprises a housing 12.
- the housing 12 consists of a magnet sleeve 16 and a cover 18.
- the magnet assembly 10 is - apart from the lid 18 - symmetrical to an axis 14 built up.
- In the lateral surface of the magnet sleeve 16 extends an annular groove 20 into which a locking ring 22 of the lid 18 engages.
- In the magnetic sleeve 16 a magnetic core 28 is accommodated, in which a magnetic coil 26 is embedded.
- the magnetic coil 26 is energized viamaschine Sammlungspins 32.
- Contacting pins 32 are guided through passage 34 of a housing part 38.
- the O-rings 24 seal the Kunststoff Industriesspins 32 respectively in the passages 34 of the housing part 38.
- FIG. 1 shows that in each case an O-ring 24 is fitted into one of the passages 34 in the housing part 38.
- the O-rings 24, which are used according to the solution in Figure 1, tend to relax, so that the sealing effect decreases seen over the lifetime of the magnet assembly 10 and leakage paths can arise.
- FIG. 2.1 shows, in a highly simplified view, a fuel injector 40 to which an electrical conductor 42 extending essentially in the horizontal direction is attached.
- the electrical conductor 42 serves for contacting the magnetic coil 26 shown in FIG. 1 embedded in the magnetic core 28.
- the electrical conductor 42 leaving the fuel injector 40 substantially in the horizontal direction is surrounded by an insulation 44.
- the electrical conductor 42 has a free end 48, which projects into a receiving opening 46.
- the free end 48 of the electrical conductor 42 is in thechiröffhung 46 by a not yet shown in Figure 2.1 electrical connection component 54, such as a plug, electrically contacted.
- an adhesive 50 into the receiving opening 46.
- a larger amount of adhesive 50 is metered.
- the metered amount of adhesive 50 depends on how far a schematically shown in Figure 2.2 electrical connection component 54 is inserted into thedataöffhung 46 of the fuel injector 40 in the joining direction 52, which gap width between the circumference of the electrical connection component 54 and the boundary wall of the receiving opening 46th established.
- a thermosetting, Einkomponentenepoxidharzklebstoff is used as the adhesive 50.
- the adhesive 50 additionally assumes the function of sealing and the function of a potting for insulating the electrical contact point, as shown in more detail in FIG.
- Figure 2.2 shows that the electrical connection component 54, which is preferably designed as a plug, is inserted in the joining direction 52 in the receiving opening 46.
- the adhesive 50 is displaced.
- the displaced adhesive 50 forms filled gaps 56.
- the filled gaps 56 ensure a sealing function and the function of a potting for insulating the electrical contact point.
- the electrical contact point which results according to FIG. 2.2 between the conductor of the electrical connection component 54 and the electrical conductor 42, is given by an insulation displacement contact 58.
- the production of the insulation displacement contact 58 shown in FIG. 2.2 between the electrical conductor 42 or its free ends 48 and the electrical connection component 54 within the receiving opening 46 takes place in the not yet hardened adhesive 50 in the receiving opening 46.
- Figure 2.3 shows how the produced insulation displacement contact 58 within thewaveöffhung 46 in the stockpiled preferably selected as a curing one-component epoxy resin adhesive 50 hardens. After the adhesive 50 has cured in the filled gaps 56, the electrical connection component 54, which is preferably designed as a plug, sealed and fixed to the fuel injector 40 is received.
- Figure 3 shows a cross section through the head of a fuel injector.
- FIG. 3 shows that the electrical connection component 54 has a slightly angled configuration and is inserted in the joining direction 52 into the receiving opening 46 in the head region of the fuel injector 40.
- the later-injected adhesive 50 which is preferably selected as a thermosetting one-component epoxy resin adhesive (see FIG.
- an insulation displacement contact 58 is made with the contacting pin 32 or the electrical conductor 42 for contacting the magnet coil 26 (see illustration according to FIG. While the connector lug 60 is injected into the electrical connection component 54 in a substantially horizontal direction, the contacting pin 32 or the electrical conductor 42 according to the embodiment of the fuel injector 40 according to FIG. 3 extends in the vertical direction.
- the liquid adhesive 50 which is injected into the cavities 62 or into the receiving opening 46, is preferably a thermosetting, one-component epoxy resin adhesive.
- the adhesive may be both in liquid form, allowing for injection of the adhesive into the receiving opening 46 and the cavity 62; the adhesive 50 may also be in film form.
- gaps 50 filled with adhesive 50 are formed.
- the filled with adhesive 50 column 56 form a cohesive connection 52 between the electrical connection component 54, which is preferably in the form of a plug, and the contacting pin 32 or the electrical conductor 42 of the fuel injector 40 extending in the horizontal direction.
- the electrical connection component 54 bears against a contact surface 64 in the periphery of the fuel injector 40. As a result, bending moments acting on the electrical connection component 54 can be transmitted to the fuel injector to a limited extent.
- the position of the contact surface 64 on the end face of the electrical connection component 54, preferably as Plug is further defined, the volume of the cavities 62 at the receiving opening 46th
- the figure 5 shown on an enlarged scale can be seen that in the electrical connection component 54, which is preferably designed as a plug, lying in a plane two connector lugs 60 extend. These are embedded as part of an embedding 70 in the plastic material of the electrical connection component 54, which is preferably designed as a plug.
- Each of the connector lugs 60 has at its front end an opening 66, so that 60 form two limbs on each of the connector lugs, which is the Jardin istspin 32 and in this embodiment extending in the vertical direction electrical conductor 42 of the fuel injector 40 electrically to contact.
- the selected configuration of the ends of the connector lugs 60 ensures that a reliable electrical contacting of the contacting pin 32 or of the electrical conductor 42 takes place.
- the Kunststoffelspin 32 and the electrical conductor 42 extends according to the embodiment in Figure 5 perpendicular to the plane of this figure.
- Reference numeral 68 denotes a return flow of the fuel injector 40, via which flows out of a control chamber at pressure relief of the same derated fuel in a low pressure region of the fuel injector 40, which is not shown here.
- FIG. 5 also shows the still unfilled cavities 62 of the receiving openings 46 in the fuel injector 40, in which the electrical connection component 54 is inserted in the joining direction 72 according to FIG.
- the insulation 44 surrounding the contacting pins 32 and the electrical conductors 42 is partially covered by the connector lugs 60 in the plan view according to FIG. 5 and is therefore only partially visible.
- FIG 6 shows that in the cavities 62 of the receiving opening 46 in the fuel injector 40 adhesive 50 is injected.
- This injected adhesive 50 fills the cavities 62, so that filled gaps 56 form.
- the filled gaps 56 which are filled by the material of the adhesive 50, form between the periphery of the electrical connection component 54 - as shown in Figure 6 - and the inner wall of the receiving openings 46 and the cavities 62 to the insulation displacement contact 58 between the Needles istspins 32 and the connector lugs 60, the seal.
- a cohesive connection 52 is produced therein. testifies.
- the filled-in gaps 56 into which the material of the adhesive 50 is displaced when joining the electrical connection component 54 in the joining direction 52 seal the insulation-displacement contact 58 produced during the joining, and insulate the electrical contacting point from external influences. especially against penetrating moisture.
- the plug lugs 60 in the electrical connection component 54 which is preferably injection-molded as a plug made of a plastic material, are accommodated in an embedding 70.
- Reference numeral 66 denotes the openings which divide the connector lugs 60 in two tongues, respectively, which electrically contact the contacting pin 32 extending in the vertical direction in the plane of the drawing or the electrical conductor 42 extending in the plane of the drawing as part of an insulation displacement contact 58 , This electrical contact is sealed by the adhesive 50 by its penetration into then filled column 56 to the outside.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007059264A DE102007059264A1 (de) | 2007-12-10 | 2007-12-10 | Stecker |
| PCT/EP2008/065559 WO2009074425A2 (de) | 2007-12-10 | 2008-11-14 | Stecker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2232645A2 true EP2232645A2 (de) | 2010-09-29 |
Family
ID=40679780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08860085A Withdrawn EP2232645A2 (de) | 2007-12-10 | 2008-11-14 | Stecker |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2232645A2 (de) |
| DE (1) | DE102007059264A1 (de) |
| WO (1) | WO2009074425A2 (de) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9417532U1 (de) * | 1994-11-02 | 1996-03-07 | Robert Bosch Gmbh, 70469 Stuttgart | Verbindungsanordnung im Automobilbau |
| DE19650865A1 (de) | 1996-12-07 | 1998-06-10 | Bosch Gmbh Robert | Magnetventil |
| DE19714812A1 (de) | 1997-04-10 | 1998-10-15 | Bosch Gmbh Robert | Magnetspule |
| JPH11339881A (ja) * | 1998-05-27 | 1999-12-10 | Sumitomo Wiring Syst Ltd | コネクタ |
| DE19848039A1 (de) * | 1998-10-17 | 2000-04-20 | Bosch Gmbh Robert | Anordnung zur Kontaktierung eines einen elektrischen Anschluß aufweisenden Bauteils mit einer elektrischen Schaltung |
| DE19963933A1 (de) * | 1999-12-31 | 2001-07-12 | Bosch Gmbh Robert | Kontaktschutzgehäuse, Einspritzpumpe und Verfahren zum Montieren eines Kontaktschutzgehäuses mit Hilfe eines Adapters |
| JP2002367716A (ja) * | 2001-06-04 | 2002-12-20 | Sumitomo Wiring Syst Ltd | 防水コネクタ |
| DE10151955A1 (de) | 2001-10-22 | 2003-05-08 | Bosch Gmbh Robert | Massereduzierter Magnetspulenträger |
-
2007
- 2007-12-10 DE DE102007059264A patent/DE102007059264A1/de not_active Withdrawn
-
2008
- 2008-11-14 EP EP08860085A patent/EP2232645A2/de not_active Withdrawn
- 2008-11-14 WO PCT/EP2008/065559 patent/WO2009074425A2/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2009074425A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102007059264A1 (de) | 2009-06-18 |
| WO2009074425A2 (de) | 2009-06-18 |
| WO2009074425A3 (de) | 2009-09-17 |
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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 |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20100712 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL BA MK RS |
|
| DAX | Request for extension of the european patent (deleted) | ||
| 17Q | First examination report despatched |
Effective date: 20160630 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
| 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: 20170111 |