EP2040339A1 - Connector with blade contact for glow plug - Google Patents

Connector with blade contact for glow plug Download PDF

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Publication number
EP2040339A1
EP2040339A1 EP08012087A EP08012087A EP2040339A1 EP 2040339 A1 EP2040339 A1 EP 2040339A1 EP 08012087 A EP08012087 A EP 08012087A EP 08012087 A EP08012087 A EP 08012087A EP 2040339 A1 EP2040339 A1 EP 2040339A1
Authority
EP
European Patent Office
Prior art keywords
contact
base body
connector
projection
lamellar
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.)
Granted
Application number
EP08012087A
Other languages
German (de)
French (fr)
Other versions
EP2040339B1 (en
Inventor
Andreas Metzler
Kurt Ellensohn
Julio Cesar Vargas Marquez
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.)
Hirschmann Automotive GmbH
Volkswagen AG
Original Assignee
Hirschmann Automotive GmbH
Volkswagen AG
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Publication date
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Publication of EP2040339A1 publication Critical patent/EP2040339A1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/58—Contacts spaced along longitudinal axis of engagement
    • 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
    • H01R13/02—Contact members
    • H01R13/04—Pins or blades for co-operation with sockets
    • H01R13/05—Resilient pins or blades
    • H01R13/052—Resilient pins or blades co-operating with sockets having a circular transverse section
    • 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
    • H01R13/02—Contact members
    • H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
    • H01R13/17—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with spring member on the pin
    • 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
    • F02P19/00—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition
    • F02P19/02—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition electric, e.g. layout of circuits of apparatus having glowing plugs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2105/00—Three poles

Definitions

  • the invention relates to a connector, designed for contacting with a glow plug of a diesel internal combustion engine, according to the features of the preamble of claim 1.
  • a connector which is designed for contacting with a glow plug of a diesel internal combustion engine.
  • This known connector has a cross-sectionally round and made of plastic base body on which coaxially at least one fin contact, preferably a plurality of fin contacts, are arranged.
  • This known connector is plugged onto a corresponding mating connector, which is present on the side of the glow plug, so that after bringing together the corresponding contacts of the connector and the mating connector both the power supply of the glow plug and the decrease of sensor signals by means of the glow plug or therein arranged sensors takes place, can take place.
  • the DE 10 2005 014 203 A1 shows only a connector with a base body on which a plurality of blade contacts are arranged one behind the other.
  • the manner in which the lamellar contacts are arranged on the base body and manufactured by itself remains open in this prior art.
  • the invention is therefore based on the object to provide a connector and a manufacturing method of such a connector, designed for contacting with a glow plug of a diesel internal combustion engine, which is process reliable in large quantities produced inexpensively and beyond the requirements when used on internal combustion engines in vehicles, meeting the requirements for contact safety.
  • the lamellar contact has a slot in the longitudinal direction and at least one projecting projection is provided on the base body, the projection being deformed after assembly of the lamella contact on the base body such that the projection after deformation at least partially over at least one longitudinal ridge the lamellar contact protrudes.
  • the base body has at least one projecting projection, in particular a plurality of protruding (radially projecting) projections, over which the blade contact is pushed.
  • This at least one projection for example, in the region of the slot of the fin contact or in a space which is formed by a plurality of longitudinal webs of the fin contact, be arranged on the base body.
  • the lamellar contact is reliably and permanently fixed to the base body so that the lamellar contact can no longer expand and thus jump off the base body.
  • This combination of longitudinal slot of the lamellar contact and projection on the base body, which is deformed, can thus be advantageously such a connector, especially in large.
  • Produce quantities cost-effectively and reliably, while the durability, especially the contact reliability, is ensured during operation of the connector to the internal combustion engine. Above all, it is no longer necessary to design the lamellar contact (shape or material) or to assemble so that it rests flush on the base body.
  • the widened blade contact is preferably pressed automatically on the base body, so that it rests flush there, and then the at least one projection plastically permanently deformed (also preferably automated), so that the Lammellentim permanently flush rests on the body.
  • the one projection or the plurality of projections which protrude from the base body are arranged in particular in such a region in which the slot of the blade contact mounted on the base body rests.
  • a housing cap 6 is present, which has not relevant here detent means with which the connector 1 can be brought to a mating connector to the glow plug of the internal combustion engine in connection. If a plurality of lamellar contacts 3 to 5 are present, they are separated by means of a spacer ring 7 which protrudes from the main body 3.
  • the lamellar contact 3 has in the transverse direction to the longitudinal direction of the connector 1 in its end regions encircling webs 31, 32, wherein, starting from the circumferential web 31, which is located in the direction of the housing cap 6, a Contact web 33 extends in the direction of the housing cap 6 and there opens into a contact lug 34. About this contact lug 34, a cable can be connected, with which the connector 1 is connected to an unillustrated engine control unit. Between the two encircling webs 31, 32, a plurality of longitudinal webs 35 oriented longitudinally are provided to form the laminar contact 3.
  • the lamellar contact 3 in the radial direction due to a slot 36 is open, so that it can be expanded for mounting on the base body 2 and pushed over this.
  • This widening is also necessary so that, for example, the further lamellar contacts 4, 5 can be pushed over the spacer rings 7.
  • the slot 36 has the additional task of providing the widening in order to be able to move the lamellar contact 3 over a projection 21, preferably a plurality of projections which protrude from the base body 2.
  • the lamellar contact 3 is pressed against the base body 2, so that the at least one projection 21 can pass through an intermediate space which is formed by the encircling webs 31, 32 and the longitudinal webs 35. Thereafter, this at least one projection 21 is mechanically deformed, so that the blade contact 3 is fixed in this position on the base body 2. A lifting of the blade contact 3 of the main body 2 can then be done in any case.
  • a manufacturing and assembly method of the connector 1 according to the invention can be seen for example in:
  • a base body 2 made of a plastic is produced in a plastic injection molding process, the at least one blade contact 3 is made of a sheet metal strip in a punch bending process and pre-bent, the prefabricated blade contact 3 is pushed over the main body 2 of the connector 1 and compressed, wherein then the at least one projection 21 of the base body 2, which protrudes in an open space between the webs 31, 32, 35, 37 of the blade contact 3, is mechanically deformed.
  • the deformation takes place in such a way that the surface of the deformed projections lies on a radius which is smaller than the radius on which in particular the longitudinal webs 35 of the lamellar contact 3 lie.
  • the projections 21 projecting from the base body 2 are mechanically deformed (for example caulked by means of a stamping tool), so that this process can be automated.
  • this cold deformation it is also conceivable to heat and reshape the projections 21 in such a way that they protrude beyond at least one web 31, 32, 35, 37 of the disk contact 3.

Abstract

The connector (1) has a base plate (2) that is circular in cross-section and made of plastic. A multi-disk contact (3-5) is arranged coaxial to the base plate. The multi-disk contact has a slot (36) in a longitudinal direction and a protruding projection (21) at the base plate. The projection is deformed after mounting the multi-disk contacts at the base plate in such a manner that the projection protrudes over a rod (37) of the multi-disk contacts after its deformation.

Description

Die Erfindung betrifft einen Steckverbinder, ausgebildet zur Kontaktierung mit einer Glühkerze einer Diesel-Brennkraftmaschine, gemäß den Merkmalen des Oberbegriffes des Patentanspruches 1.The invention relates to a connector, designed for contacting with a glow plug of a diesel internal combustion engine, according to the features of the preamble of claim 1.

Aus der DE 10 2005 014 203 A1 ist ein Steckverbinder bekannt, der zur Kontaktierung mit einer Glühkerze einer Diesel-Brennkraftmaschine ausgebildet ist. Dieser bekannte Steckverbinder weist einen im Querschnitt runden und aus Kunststoff bestehenden Grundkörper auf, auf dem koaxial zumindest ein Lamellenkontakt, vorzugsweise mehrere Lamellenkontakte, angeordnet sind. Dieser bekannte Steckverbinder wird auf einen entsprechenden Gegensteckverbinder, der auf Seite der Glühkerze vorhanden ist, aufgesteckt, so dass nach dem Zusammenbringen der korrespondierenden Kontakte des Steckverbinders und des Gegensteckverbinders sowohl die Stromversorgung der Glühkerze als auch die Abnahme von Sensorsignalen, die mittels der Glühkerze oder darin angeordneten Sensoren erfolgt, erfolgen kann.From the DE 10 2005 014 203 A1 a connector is known, which is designed for contacting with a glow plug of a diesel internal combustion engine. This known connector has a cross-sectionally round and made of plastic base body on which coaxially at least one fin contact, preferably a plurality of fin contacts, are arranged. This known connector is plugged onto a corresponding mating connector, which is present on the side of the glow plug, so that after bringing together the corresponding contacts of the connector and the mating connector both the power supply of the glow plug and the decrease of sensor signals by means of the glow plug or therein arranged sensors takes place, can take place.

Auf Grund des Einsatzes solcher Steckverbinder im Bereich von Brennkraftmaschinen von Fahrzeugen sind diese Steckverbinder sehr harten Umgebungsbedingungen ausgesetzt. Zum einen sind sehr große Temperaturunterschiede, ebenso aber auch während des Betriebes der Brennkraftmaschine starke Vibrationen, Schläge, Stöße und dergleichen unterworfen. Da jedoch mit der Glühkerze bzw. den Sensoren, die über den Steckverbinder mit einem Motorsteuergerät verbunden sind, Parameter der Brennkraftmaschine erfasst werden müssen, die bei der Motorsteuerung unbedingt zu berückslchtigen sind, ist es wichtig, dass jederzeit bei zusammengestecktem Steckverbinder und Gegensteckverbinder eine Kontaktierung gewährleistet ist. Dies kann mit entsprechenden aufwändigen Maßnahmen sichergestellt werden, was aber im Widerspruch zu einer kostengünstlgen Entwicklung und Herstellung solcher Steckverbinder für Diesel-Brennkraftmaschinen steht.Due to the use of such connectors in the field of internal combustion engines of vehicles, these connectors are exposed to very harsh environmental conditions. On the one hand, very large temperature differences, as well as during operation of the internal combustion engine strong vibrations, shocks, shocks and the like are subjected. However, since with the glow plug or the sensors, which are connected via the connector with an engine control unit, parameters of the internal combustion engine must be detected, necessarily in the engine control It is important to ensure contact at any time when the connector and mating connector are plugged together. This can be ensured with appropriate complex measures, but this is in contradiction to a kostenlgen development and production of such connectors for diesel internal combustion engines.

Die DE 10 2005 014 203 A1 zeigt lediglich einen Steckverbinder mit einem Grundkörper, auf dem hintereinander mehrere Lamellenkontakte angeordnet sind. Die Art und Weise, wie die Lamellenkontakte auf dem Grundkörper angeordnet werden und selbst hergestellt werden, bleibt bei diesem Stand der Technik offen.The DE 10 2005 014 203 A1 shows only a connector with a base body on which a plurality of blade contacts are arranged one behind the other. The manner in which the lamellar contacts are arranged on the base body and manufactured by itself remains open in this prior art.

Der Erfindung liegt daher die Aufgabe zu Grunde, einen Steckverbinder sowie ein Herstellungsverfahren eines solchen Steckverbinders, ausgebildet zur Kontaktierung mit einer Glühkerze einer Diesel-Brennkraftmeschine bereitzustellen, der prozesssicher in hohen Stückzahlen kostengünstig herstellbar ist und darüber hinaus den Anforderungen beim Einsatz an Brennkraftmaschinen in Fahrzeugen, den Anforderungen hinsichtlich Kontaktsicherheit, gerecht wird.The invention is therefore based on the object to provide a connector and a manufacturing method of such a connector, designed for contacting with a glow plug of a diesel internal combustion engine, which is process reliable in large quantities produced inexpensively and beyond the requirements when used on internal combustion engines in vehicles, meeting the requirements for contact safety.

Diese Aufgabe ist durch die Merkmale des Patentanspruches 1 gelöst.This object is solved by the features of claim 1.

Erfindungsgemäß ist vorgesehen, dass der Lamellenkontakt in Längsrichtung einen Schlitz aufweist und an dem Grundkörper zumindest ein vorstehender Vorsprung vorgesehen ist, wobei der Vorsprung nach der Montage des Lamellenkontaktes auf dem Grundkörper derart verformt ist, dass der Vorsprung nach der Verformung zumindest teilweise über zumindest einen Längssteg des Lamellenkontaktes ragt. Mit dieser erfindungsgemäßen Ausgestaltung eines Steckverbinders lässt sich ein solcher Steckverbinder prozesssicher und kostengünstig in hohen Stückzahlen herstellen, wobei er gleichzeitig den Anforderungen bei Betrieb in der Brennkraftmaschine entspricht. Der radial ausgebildete Lamellenkontakt kann in einem Stanzbiegeverfahren hergestellt werden und bleibt auf Grund des Längsschlitzes aufgeweitet, so dass er über den runden Grundkörper des Steckverbinders bei der Montage geschoben werden kann. Dadurch ist zunächst eine einfache Herstellung und Montage des Lamellenkontaktes auf dem Grundkörper gegeben. Zur Gewährleistung der Kontaktsicherheit ist weiterhin vorgesehen, dass der Grundkörper zumindest einen vorstehenden Vorsprung, insbesondere mehrere vorstehende (radial abstehende) Vorsprünge aufweist, über die der Lamellenkontakt geschoben wird. Dieser zumindest eine Vorsprung kann beispielsweise im Bereich des Schlitzes des Lamellenkontaktes oder in einem Zwischenraum, der von mehreren Längsstegen des Lamellenkontakts gebildet wird, an dem Grundkörper angeordnet sein. Nachdem der Lamellenkontakt an der Soll-Position auf dem Grundkörper festgelegt worden ist, wird er vorzugsweise weiter verformt (zusammengedrückt), so dass er auf dem Grundkörper zur Anlage kommt. Nachdem dies erfolgt ist, wird der Vorsprung zumindest teilweise verformt, so dass er über zumindest einen Längssteg des Lamellenkontaktes ragt. Durch diese Verformung (Kalt- oder Warmverformung, z.B. eine Verstemmung), wird der Lamellenkontakt zuverlässig und dauerhaft an dem Grundkörper festgelegt, so dass sich der Lamellenkontakt nicht mehr aufweiten und damit von dem Grundkörper abspringen kann. Durch diese Kombination von Längsschlitz des Lamellenkontaktes und Vorsprung an dem Grundkörper, der verformt wird, lässt sich somit in vorteilhafter Weise ein solcher Steckverbinder, insbesondere in großen . Stückzahlen kostengünstig und prozesssicher herstellen, wobei gleichzeitig die Dauerhaltbarkeit, insbesondere die Kontaktsicherheit, während des Betriebes des Steckverbinders an der Brennkraftmaschine gewährleistet ist. Vor allen Dingen ist es nicht mehr erforderlich, den Lamellenkontakt so auszugestalten (Form oder Material) bzw. so zu montieren, dass er bündig auf dem Grundkörper aufliegt. Gemäß der Erfindung wird der aufgeweitete Lamellenkontakt vorzugsweise automatisiert auf den Grundkörper gedrückt, so dass er dort bündig aufliegt, und anschlleßend der zumindest eine Vorsprung plastisch dauerhaft verformt (ebenfalls vorzugsweise automatisiert), so dass der Lammellenkontakt dauerhaft bündig auf dem Grundkörper aufliegt. Dadurch lässt sich ein kostengünstiges Material für den Lamellenkontakt einsetzen, da dieses nicht mehr die Eigenschaften haben muss, dass es nach der Aufweitung, dem Überschieben über den Grundkörper und dem anschließenden Zusammendrücken diese Form beibehalten muss.According to the invention, the lamellar contact has a slot in the longitudinal direction and at least one projecting projection is provided on the base body, the projection being deformed after assembly of the lamella contact on the base body such that the projection after deformation at least partially over at least one longitudinal ridge the lamellar contact protrudes. With this embodiment of a connector according to the invention, such a connector can be manufactured process-reliable and cost-effective in large quantities, while at the same time meets the requirements for operation in the internal combustion engine. The radially formed lamellar contact can be made in a stamping bending process and remains widened due to the longitudinal slot, so that it can be pushed over the round body of the connector during assembly. As a result, a simple manufacture and assembly of the fin contact on the base body is initially given. To ensure contact safety, it is further envisaged that the base body has at least one projecting projection, in particular a plurality of protruding (radially projecting) projections, over which the blade contact is pushed. This at least one projection, for example, in the region of the slot of the fin contact or in a space which is formed by a plurality of longitudinal webs of the fin contact, be arranged on the base body. After the blade contact has been fixed to the desired position on the base body, it is preferably further deformed (compressed) so that it comes to rest on the base body. After this has taken place, the projection is at least partially deformed, so that it projects beyond at least one longitudinal web of the disk contact. As a result of this deformation (cold or hot deformation, eg, caulking), the lamellar contact is reliably and permanently fixed to the base body so that the lamellar contact can no longer expand and thus jump off the base body. This combination of longitudinal slot of the lamellar contact and projection on the base body, which is deformed, can thus be advantageously such a connector, especially in large. Produce quantities cost-effectively and reliably, while the durability, especially the contact reliability, is ensured during operation of the connector to the internal combustion engine. Above all, it is no longer necessary to design the lamellar contact (shape or material) or to assemble so that it rests flush on the base body. According to the invention, the widened blade contact is preferably pressed automatically on the base body, so that it rests flush there, and then the at least one projection plastically permanently deformed (also preferably automated), so that the Lammellenkontakt permanently flush rests on the body. This makes it possible to use a cost-effective material for the lamellar contact, since this no longer has to have the properties that it must maintain this shape after the expansion, the sliding over the body and the subsequent compression.

Der eine Vorsprung oder die mehreren Vorsprünge, die von dem Grundkörper abstehen, sind insbesondere in einem solchen Bereich angeordnet, in dem der Schlitz des auf dem Grundkörper montierten Lamellenkontaktes, anliegt. Dies hat den Vorteil, dass der Lamellenkontakt mit. den Vorsprüngen, die verformt worden sind, in einem solchen Bereich auf dem Grundkörper festgelegt wird, der am wirksamsten den aufbiegbaren Lamellenkontakt an dem Grundkörper festhält. Alternativ oder ergänzend dazu kann vorgesehen werden, dass auch im radialen Verlauf des Lamellenkontaktes solche Vorsprünge vorgesehen werden, die zwecks Festlegung des Lamellenkontaktes an dem Grundkörper verformt werden.The one projection or the plurality of projections which protrude from the base body are arranged in particular in such a region in which the slot of the blade contact mounted on the base body rests. This has the advantage that the lamellar contact with. the projections that have been deformed in such a range is determined on the body, which most effectively holds the auffiegbaren blade contact to the body. Alternatively or additionally, it can be provided that such projections are also provided in the radial course of the lamellar contact, which projections are deformed for the purpose of fixing the lamellar contact on the base body.

Bei der Verformung der Vorsprünge ist dabei darauf zu achten, dass die Oberfläche der verformten Vorsprünge auf einem Radius liegen, der kleiner ist als der . Kontaktradius der Lamellenkontakte.When deforming the projections, care must be taken that the surface of the deformed projections lie on a radius which is smaller than that. Contact radius of the lamellar contacts.

Die Erfindung wird weiterhin anhand von einem Ausführungsbeispiel, auf das diese jedoch nicht beschränkt ist, im Folgenden beschrieben und anhand der Figuren erläutert.The invention will be further described with reference to an embodiment, to which, however, this is not limited, and explained with reference to the figures.

Die beiden in den Figuren 1 und 2 gegeneinander verdreht dargestellten Steckverbinder 1, ausgebildet zur Kontaktierung mit einer Glühkerze einer Diesel-Brennkraftmaschine, weisen einen im Querschnitt runden und aus Kunststoff bestehenden Grundkörper 2 auf, auf dem koaxial zumindest ein Lamellenkontakt, bei diesem Ausführungsbeispiel drei Lamellenkontakte 3, 4, 5 in Längsrichtung hintereinander angeordnet sind. In dem dem Kontaktierungsbereich sich anschließenden Endbereich des Steckverbinders 1 ist eine Gehäusekappe 6 vorhanden, die über hier nicht relevante Rastmittel verfügt, mit denen der Steckverbinder 1 mit einem Gegensteckverbinder an der Glühkerze der Brennkraftmaschine in Verbindung gebracht werden kann. Sind mehrere Lamellenkontakte 3 bis 5 vorhanden, sind diese mittels eines Distanzringes 7, der von dem Grundkörper 3 absteht, getrennt.The two in the FIGS. 1 and 2 twisted against each other shown connector 1, formed for contacting with a glow plug of a diesel engine, have a cross-sectionally round and made of plastic base body 2, on the coaxial at least one blade contact, in this embodiment three blade contacts 3, 4, 5 in the longitudinal direction one behind the other are arranged. In the contacting region adjoining end portion of the connector 1, a housing cap 6 is present, which has not relevant here detent means with which the connector 1 can be brought to a mating connector to the glow plug of the internal combustion engine in connection. If a plurality of lamellar contacts 3 to 5 are present, they are separated by means of a spacer ring 7 which protrudes from the main body 3.

Die erfindungsgemäße Ausgestaltung eines Lamallenkontaktes 3 und dessen Festlegung an dem Grundkörper 2 wird im Folgenden beschrieben und gilt analog auch für die weiteren Lamellenkontakte 4, 5.The inventive design of a Lamallenkontaktes 3 and its attachment to the base body 2 is described below and applies analogously to the other slats contacts 4, 5.

Der Lamellenkontakt 3 weist in Querrichtung zur Längsrichtung des Steckverbinders 1 in seinen Endbereichen umlaufende Stege 31, 32 auf, wobei ausgehend von dem umlaufenden Steg 31, der sich in Richtung der Gehäusekappe 6 befindet, ein Kontaktsteg 33 in Richtung der Gehäusekappe 6 erstreckt und dort in eine Kontaktfahne 34 mündet. Über diese Kontaktfahne 34 kann ein Kabel angeschlossen werden, mit dem der Steckverbinder 1 an ein nicht dargestelltes Motorsteuergerät angeschlossen wird. Zwischen den beiden umlaufenden Stegen 31, 32 sind zur Bildung des Lamellenkontaktes 3 mehrere, in Längsrichtung ausgerichtete Längsstege 35 vorhanden. Nach seiner Herstellung, z.B. in einem Stanzbiegeverfahren aus einem Blechstreifen, ist der Lamellenkontakt 3 in radialer Richtung auf Grund eines Schlitzes 36 offen, so dass er zur Montage auf dem Grundkörper 2 aufgeweitet und über diesen geschoben werden kann. Diese Aufweitung ist auch deshalb erforderlich, damit z.B. die weiteren Lamellenkontakte 4, 5 über die Distanzringe 7 geschoben werden können. Außerdem hat der Schlitz 36 noch die Aufgabe, dass damit die Aufweitung gegeben ist, um den Lamellenkontakt 3 über einen Vorsprung 21, vorzugsweise mehrere Vorsprünge, die von dem Grundkörper 2 abstehen, bewegen zu können. Nachdem dies erfolgt ist, wird der Lamellenkontakt 3 an den Grundkörper 2 gedrückt, so dass der zumindest eine Vorsprung 21 durch einen Zwischenraum, der von den umlaufenden Stegen 31, 32 und den Längsstegen 35 gebildet wird, gelangen kann. Danach wird dieser zumindest eine Vorsprung 21 mechanisch verformt, so dass der Lamellenkontakt 3 in dieser Position auf dem Grundkörper 2 fixiert wird. Ein Abheben des Lamellenkontaktes 3 von dem Grundkörper 2 kann dann in keinem Fall mehr erfolgen.The lamellar contact 3 has in the transverse direction to the longitudinal direction of the connector 1 in its end regions encircling webs 31, 32, wherein, starting from the circumferential web 31, which is located in the direction of the housing cap 6, a Contact web 33 extends in the direction of the housing cap 6 and there opens into a contact lug 34. About this contact lug 34, a cable can be connected, with which the connector 1 is connected to an unillustrated engine control unit. Between the two encircling webs 31, 32, a plurality of longitudinal webs 35 oriented longitudinally are provided to form the laminar contact 3. After its production, for example in a stamping bending process from a sheet metal strip, the lamellar contact 3 in the radial direction due to a slot 36 is open, so that it can be expanded for mounting on the base body 2 and pushed over this. This widening is also necessary so that, for example, the further lamellar contacts 4, 5 can be pushed over the spacer rings 7. In addition, the slot 36 has the additional task of providing the widening in order to be able to move the lamellar contact 3 over a projection 21, preferably a plurality of projections which protrude from the base body 2. After this has taken place, the lamellar contact 3 is pressed against the base body 2, so that the at least one projection 21 can pass through an intermediate space which is formed by the encircling webs 31, 32 and the longitudinal webs 35. Thereafter, this at least one projection 21 is mechanically deformed, so that the blade contact 3 is fixed in this position on the base body 2. A lifting of the blade contact 3 of the main body 2 can then be done in any case.

In der rechten Darstellung der Figur ist noch erkennbar, dass, ausgehend von dem den Schlitz 36 auf der einen Seite des Lamellenkontaktes 3 bildenden Längssteg 35, ein In den Zwischenraum reichender Quersteg 37 vorgesehen ist, wobei neben dem Quersteg 37 jeweils ein von dem Grundkörper 2 abstehender Vorsprung 21 angeordnet ist. Durch diesen Quersteg 37 und die daneben vorhandenen und verformbaren Vorsprünge 21, wird der Lamellenkontakt 3 besonders gut und einfach an dem Grundkörper 2 fixiert.In the right-hand illustration of the figure is still recognizable that, starting from the slot 36 on one side of the lamellar contact 3 forming longitudinal ridge 35, a reaching into the gap transverse web 37 is provided, wherein in addition to the cross bar 37 each one of the main body. 2 protruding projection 21 is arranged. Through this crosspiece 37 and the adjacent existing and deformable projections 21, the blade contact 3 is particularly well and easily fixed to the base body 2.

Ein Herstellungs- und Montageverfahren des erfindungsgemäßen Steckverbinders 1 kann beispielsweise darin gesehen werden: A manufacturing and assembly method of the connector 1 according to the invention can be seen for example in:

Ein Grundkörper 2 aus einem Kunststoff wird in einem Kunststoffspritzgussverfahren hergestellt, der zumindest eine Lamellenkontakt 3 wird aus einem Blechstreifen in einem Stanzbiegeverfahren hergestellt und vorgebogen, der vorgefertigte Lamellenkontakt 3 wird über den Grundkörper 2 des Steckverbinders 1 geschoben und zusammengedrückt, wobei anschließend der zumindest eine Vorsprung 21 des Grundkörpers 2, der in einem Freibereich zwischen den Stegen 31, 32, 35, 37 des Lamellenkontaktes 3 hindurchragt, mechanisch umgeformt wird. Die Umformung erfolgt dabei in der Art und Weise, dass die Oberfläche der verformten Vorsprünge auf einem Radius liegt, der kleiner ist als der Radius, auf dem insbesondere die Längsstege 35 des Lamellenkontaktes 3 liegen.A base body 2 made of a plastic is produced in a plastic injection molding process, the at least one blade contact 3 is made of a sheet metal strip in a punch bending process and pre-bent, the prefabricated blade contact 3 is pushed over the main body 2 of the connector 1 and compressed, wherein then the at least one projection 21 of the base body 2, which protrudes in an open space between the webs 31, 32, 35, 37 of the blade contact 3, is mechanically deformed. The deformation takes place in such a way that the surface of the deformed projections lies on a radius which is smaller than the radius on which in particular the longitudinal webs 35 of the lamellar contact 3 lie.

In bevorzugter Weise werden die von dem Grundkörper 2 abstehenden Vorsprünge 21 mechanisch verformt (z.B. mittels eines Stempelwerkzeuges verstemmt), so dass dieser Prozess automatisiert erfolgen kann. Neben dieser Kaltvertormung ist es auch denkbar, die Vorsprünge 21 derart zu erwärmen und umzuformen, dass sie über zumindest einen Steg 31, 32, 35, 37 des Lamellenkontaktes 3 ragen.Preferably, the projections 21 projecting from the base body 2 are mechanically deformed (for example caulked by means of a stamping tool), so that this process can be automated. In addition to this cold deformation, it is also conceivable to heat and reshape the projections 21 in such a way that they protrude beyond at least one web 31, 32, 35, 37 of the disk contact 3.

Die vorstehend genannten Ausführungen zur Herstellung, Montage und Festlegung des Lamellenkontaktes 3 auf dem Grundkörper 2 gelten in analoger Weise sinngemäß auch für den Fall, dass mehr als ein Lamellenkontakt 3, nämlich Lamellenkontakte 3 bis 5, vorhanden sind. Je nachdem, wie viele Signale über den erfindungsgemäßen Steckverbinder 1 übertragen werden sollen, ist es auch denkbar, dass mehr als die genannten drei Lamellenkontakte 3 bis 5 vorhanden sind.The aforementioned remarks on the manufacture, assembly and fixing of the lamellar contact 3 on the base body 2 apply analogously, mutatis mutandis, in the event that more than one blade contact 3, namely blade contacts 3 to 5, are present. Depending on how many signals are to be transmitted via the connector 1 according to the invention, it is also conceivable that more than said three fin contacts 3 to 5 are present.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
SteckverbinderConnectors
22
Grundkörperbody
2121
Vorsprunghead Start
33
Lamellenkontaktlaminated contact
3131
umlaufender Stegcircumferential bridge
3232
umlaufender Stegcircumferential bridge
3333
Kontaktstegcontact web
3434
Kontaktfahnecontact tag
3535
Längssteglongitudinal web
3636
Schlitzslot
3737
Querstegcrosspiece
44
Lamellenkontaktlaminated contact
55
Lamellenkontaktlaminated contact
66
Gehäusekappehousing cap
77
Distanzringspacer

Claims (5)

Steckverbinder (1), ausgebildet zur Kontaktierung mit einer Glühkerze einer Diesel-Brennkraftmaschine, aufweisend einen im Querschnitt runden und aus Kunststoff bestehenden Grundkörper (2), auf dem koaxial zumindest ein Lamellenkontakt (3, 4, 5) angeordnet ist, dadurch gekennzeichnet, dass der Lamellenkontakt (3, 4, 5) in Längsrichtung einen Schlitz (36) aufweist und an dem Grundkörper (2) zumindest ein vorstehender Vorsprung (21) vorgesehen ist, wobei der Vorsprung (21) nach der Montage des Lamellenkontaktes (3, 4, 5) auf dem Grundkörper (2) derart verformt ist, dass der Vorsprung (21) nach seiner Verformung zumindest teilweise über zumindest einen Steg (31, 32, 35, 37) des Lamellenkontaktes (3, 4, 5) ragt.Connector (1), adapted for contacting with a glow plug of a diesel internal combustion engine, comprising a cross-sectionally round and made of plastic base body (2) on which coaxially at least one fin contact (3, 4, 5) is arranged, characterized in that the lamellar contact (3, 4, 5) has a slot (36) in the longitudinal direction and at least one projecting projection (21) is provided on the base body (2), wherein the projection (21) after assembly of the lamella contact (3, 4, 5) on the base body (2) is deformed such that the projection (21) after its deformation at least partially over at least one web (31, 32, 35, 37) of the blade contact (3, 4, 5) protrudes. Steckverbinder (1) nach Anspruch 1, dadurch gekennzeichnet, dass ausgehend von dem Schlitz (36) zwei parallel zueinander angeordnete Längsstege (35) vorgesehen sind, die einen Zwischenraum bilden, wobei der Lamellenkontakt (3, 4, 5) so auf dem Grundkörper (2) angeordnet ist, dass dessen zumindest einer Vorsprung (21) sich in dem Zwischenraum befindet.Connector (1) according to claim 1, characterized in that starting from the slot (36) has two mutually parallel longitudinal webs (35) are provided which form a gap, the blade contact (3, 4, 5) on the base body ( 2) is arranged, that its at least one projection (21) is located in the intermediate space. Steckverbinder (1) nach Anspruch 2, dadurch gekennzeichnet, dass ausgehend von dem den Schlitz (36) auf der einen Seite des Lamellenkontaktes (3, 4, 5) bildenden Längssteg (35) ein in den Zwischenraum reichender Quersteg (37) vorgesehen ist, wobei neben dem Quersteg (37) jeweils ein Vorsprung (21) des Grundkörpers (2) angeordnet ist.Connector (1) according to claim 2, characterized in that starting from the slot (36) on one side of the lamellar contact (3, 4, 5) forming the longitudinal web (35) is provided in the intermediate space a transverse web (37), wherein in each case a projection (21) of the base body (2) is arranged next to the transverse web (37). Steckverbinder (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass auf dem Grundkörper (2) mehrere, vorzugsweise drei Lamellenkontakte (3, 4, 5) in Längsrichtung hintereinander angeordnet sind, die von jeweils einem von dem Grundkörper (2) abstehenden Distanzring (7) getrennt sind.Connector (1) according to any one of the preceding claims, characterized in that on the base body (2) a plurality, preferably three lamellar contacts (3, 4, 5) are arranged one behind the other in the longitudinal direction, each of one of the main body (2) projecting spacer ring (7) are separated. Steckverbinder (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Grundkörper (2) in den Bereichen, in denen die Lamellenkontakte (3, 4, 5) auf ihm angeordnet sind, gestuft ausgebildet ist.Plug connector (1) according to one of the preceding claims, characterized in that the base body (2) is stepped in the regions in which the lamellar contacts (3, 4, 5) are arranged on it.
EP08012087.6A 2007-07-05 2008-07-04 Connector with blade contact for glow plug Active EP2040339B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007031401A DE102007031401A1 (en) 2007-07-05 2007-07-05 Plug connector, designed for contacting with a glow plug, in which a blade contact is stamped on a projection

Publications (2)

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EP2040339A1 true EP2040339A1 (en) 2009-03-25
EP2040339B1 EP2040339B1 (en) 2016-01-06

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ID=39730847

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US (1) US7731549B2 (en)
EP (1) EP2040339B1 (en)
DE (1) DE102007031401A1 (en)
ES (1) ES2566503T3 (en)

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Also Published As

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US20100003841A1 (en) 2010-01-07
ES2566503T3 (en) 2016-04-13
DE102007031401A1 (en) 2009-01-08
EP2040339B1 (en) 2016-01-06
US7731549B2 (en) 2010-06-08

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