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EP2573880B1 - Housing for an electrical connector with a drainage device - Google Patents

Housing for an electrical connector with a drainage device Download PDF

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Publication number
EP2573880B1
EP2573880B1 EP12185492.1A EP12185492A EP2573880B1 EP 2573880 B1 EP2573880 B1 EP 2573880B1 EP 12185492 A EP12185492 A EP 12185492A EP 2573880 B1 EP2573880 B1 EP 2573880B1
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EP
European Patent Office
Prior art keywords
housing
rear wall
electrical connector
wall
extends
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.)
Active
Application number
EP12185492.1A
Other languages
German (de)
French (fr)
Other versions
EP2573880A1 (en
Inventor
Michael Hornung
Paul G. Halbach
Anatoli Bolt
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.)
Aptiv Technologies Ltd
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Aptiv Technologies Ltd
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Publication date
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Publication of EP2573880A1 publication Critical patent/EP2573880A1/en
Application granted granted Critical
Publication of EP2573880B1 publication Critical patent/EP2573880B1/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
    • 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
    • H01R13/5227—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases with evacuation of penetrating liquids
    • 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

  • the invention relates to a housing for an electrical connector with a dewatering device for dewatering the cavities of the electrical connector.
  • the booming electromobility poses new challenges for motor vehicle manufacturers.
  • an interface for charging the vehicle batteries must be provided.
  • This interface is also commonly called a charging socket.
  • an electrical connector is provided on the vehicle, which is accessible from the outside.
  • the parked vehicle can be connected by means of the charging socket and a connecting cable to the charging station.
  • the connecting line has a corresponding charging plug.
  • the charging socket is arranged so that the charging plug is inserted laterally into the body, similar to refueling a vehicle on a dispensing device.
  • the charging voltage for electric vehicles is much higher than the on-board voltage of vehicles with internal combustion engine, in the design of charging plugs and charging sockets a higher effort in terms of the insulation properties of the components used must be operated.
  • an electrolyte water
  • the charging socket is largely protected by a cover against contact and environmental influences. However, it may also form condensation under the cover or collect water spray.
  • the water collects, for example, in the recesses, which defines the position of the charging plug in the charging socket or in the contact chambers, in which the contact elements of the charging plug meet with the contact elements of the charging socket.
  • Inserting the charging plug into a charging socket filled with water can cause some of the water to splash out of the socket in an uncontrolled manner and leave a part in the cavities.
  • leakage currents can occur which impair the function of the charging process. It can also be a high voltage to the Surface of the charging plug enter and endanger people. In the long term, deposits can form in the charging socket and lead to malfunctions during the charging process.
  • an electrical connector comprises the housing according to the invention and a sheet of sealing material covering the outer surface of the back surface and the drainage groove, and a fuse cap attachable to the housing holding the sealing material on the back surface.
  • water which precipitates in the bores of the housing or splashing water which enters the housing is passed through a system of a channel and a groove, controlled to a drain opening. From the drain opening, the water can then be passed through a hose or a pipe to the outside of the vehicle.
  • the channel system generally prevents accumulation of water in the contact chamber so that no corrosion can form on the electrical contact element.
  • the groove and the contact element are sealed.
  • the layer of sealing material covers the back surface of the plug housing, whereby the open side of the drainage groove is closed and the water is now guided in a tubular formation in the direction of the drainage opening.
  • the electrical contact element emerges from the back of the housing and through the layer of sealing material.
  • the sealing material wraps circumferentially around the contact element and thus seals the connection region of the contact element against the rear side of the housing. This ensures that the area in which the contact elements are connected to the electrical lines remains dry.
  • a safety cap holds the sealing material in place and exerts a slight pressure on the sealing material, thereby improving the sealing effect.
  • the drainage groove and the cylindrical channel, in front of the drainage opening are fluidly connected to each other through an opening.
  • the drainage grooves open into the cylindrical channel and use it as part of the flow path to the drainage opening.
  • the inner region has two or more axially extending bores.
  • the number of drainage channels through the back wall and the number of drainage grooves corresponds to the number of holes.
  • Each hole has a separate flow path.
  • the axial direction A is substantially perpendicular to the plane of the rear wall. But there are also other angles conceivable, which are required by cramped mounting positions.
  • the housing is produced by an injection molding process.
  • any method that can be used to make a plastic housing such as milling, or a layered construction method, is possible Stereolithography.
  • the layer of sealing material consists of an elastomeric material. Where natural rubber or silicone rubber can be used.
  • the sealing material may be glued to the back of the housing and / or held in place by a cap.
  • the safety cap is screwed to the housing.
  • the safety cap can also be attached by gluing or a snap closure. It would also be possible to use the cap by welding, e.g. by ultrasonic welding, to attach.
  • the conductor connection region of the contact elements is preferably designed as a crimping region.
  • the conductor connection area can also be designed so that he suitable for all common Kunststoffier method, such as soldering or ultrasonic welding.
  • FIG. 1 shows a known from the prior art embodiment of an electrical connector with a drainage system.
  • the electrical connector 10 includes a housing 12 having an outer wall 14 that extends in an axial direction A from a substantially planar rear wall 16.
  • the axial direction A corresponds to the plugging direction when mating with a corresponding electrical mating connector.
  • the plane of the rear wall 16 forms with the axial direction A is a right angle.
  • the axial direction A is substantially in the horizontal direction.
  • the housing 12 has an inner region 18.
  • the housing 12 has an inner region 18.
  • In the inner region 18 is a number of tubular holes 20 which extend parallel to each other, in the axial direction A.
  • Each bore 20 is bounded at one end by the rear wall 16 and open at the opposite end 32.
  • a cylindrical channel 28 is formed in the housing 12 between the outer wall 14 and the inner portion 18. The cylindrical channel 28 is closed at one end by the rear wall 16 and open at the opposite end 32.
  • the mating connector is moved toward the electrical connector 10 along the axial direction A starting from the open end 32.
  • the cylindrical channel 28 leads the mating connector in the correct position.
  • Each bore 20 has an electrical contact element 22 (male or female) connected to it.
  • Each contact element 22 is guided by the rear wall 16 and fixed in it.
  • Each contact element 22 has a contact region 24 and a connection section 26 (eg a crimp section).
  • the contact area extends within the bore 20 and the connecting portion 26 on the opposite side of the rear wall 16.
  • the connecting portion 26 is for connection to an electrical conductor (not shown).
  • a drainage port 30 is mounted in the outer wall 14 at a position located at the lower portion (when the electrical connector 10 is in the installed position) of the channel near the rear wall 16.
  • the channel 28 opens into the drainage opening 30.
  • the contents of the channel 28 eg water
  • FIG. 2 shows a housing 112 which is provided for an electrical connector 110.
  • the housing 112 has a substantially planar rear wall 116 and a substantially cylindrical outer wall 14 which extends in the axial direction A from the rear wall.
  • the rear wall 116 has an outer surface 34 located on the opposite side of the rear wall 116.
  • the outer surface 34 faces the inner region 18, separated by the rear wall 116.
  • a drainage channel 36 extends through the rear wall 116 of the housing 112 from the outer surface 34 of the rear wall 116 and connects the respective bores 20 to the outer surface 34.
  • a drainage groove 38 is embossed into the outer surface 34 of the rear wall 116. The drainage groove 38 extends from each drainage channel 36 to the drainage hole 30 to form a flow path for water.
  • a drainage opening 30 in the outer wall 14 provides a connection of the cylindrical channel 28 to the outside of the housing. In the illustrated embodiment, seven bores 20 are illustrated, but the present invention relates to a housing 112 having any number of bores.
  • FIG. 3 also shows the housing 112 provided for an electrical connector 110.
  • the outer surface 34 of the rear wall 116 is covered in this illustration with a layer of sealing material 40.
  • the layer of sealing material 40 rests on the outer surface 34.
  • the drainage groove 38 and the layer of sealing material 40 form a tubular channel.
  • the channel leads from the drainage channel 36 to the drainage hole 30 and forms a flow path for the water.
  • openings 41 in the layer of sealing material 40 through which the contact elements 22 are inserted during assembly of the electrical connector.
  • FIG. 4 shows the rear view of an electrical connector 110.
  • a safety cap 42 is attached at the rear of the housing 112 after the layer of sealing material 40 has been applied.
  • the securing cap 42 permanently retains the layer of sealing material 40 against the outer surface 34 of the back wall 116.
  • the contact elements 22 protrude through the openings 41 in the layer of sealing material 40 into the securing cap 42.
  • the layer of sealing material 40 conforms to the edges of the opening 41 to the contact element 22, whereby the conductor connection region 26 is additionally sealed.
  • FIGS. 5 and 5A show a sectional view of the electrical connector 110 after FIG. 4 , The section is taken along the line V. In this illustration, the Good to see the course of the flow path.
  • the drainage channel 36 begins and penetrates the rear wall 116 then runs on the outer surface 34 in the Enticass mecanicsnut 38 and then flows into the drainage port 30th
  • Figures 6 and 6A also show a sectional view of the electrical connector 110 after FIG. 4 , The cut is made this time along the line VI.
  • the course of the flow path in the region of the drainage opening 30 is clearly visible.
  • the drainage groove 38 and the cylindrical channel 28 are connected to each other in front of the drainage hole 30 through an opening. As a result, water can flow out of the cylindrical channel 28 as well as out of the drainage groove 38 through the drainage opening 30.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)

Description

Die Erfindung betrifft ein Gehäuse für einen elektrischen Verbinder mit einer Entwässerungsvorrichtung zum Entwässern der Hohlräume des elektrischen Verbinders. Die boomende Elektromobilität stellt die Kraftfahrzeughersteller vor neue Herausforderungen. Beispielsweise muss bei Elektrofahrzeugen eine Schnittstelle zum Laden der Fahrzeugbatterien vorgesehen werden. Landläufig wird diese Schnittstelle auch Ladebuchse genannt. Herkömmlicherweise wird zu diesem Zweck ein elektrischer Verbinder am Fahrzeug vorgesehen, der von der Außenseite zugänglich ist. Das abgestellte Fahrzeug kann mittels der Ladebuchse und einer Anschlussleitung mit der Ladestation verbunden werden. Wobei die Verbindungsleitung einen entsprechenden Ladestecker aufweist. Die Ladebuchse ist so angeordnet, dass der Ladestecker seitlich in die Karosserie eingesteckt wird, vergleichbar dem Betanken eines Fahrzeugs an einer Zapfvorrichtung. Da die Ladespannung für Elektrofahrzeuge wesentlich höher ist als die Bordspannung von Fahrzeugen mit Verbrennungsmotor, muss bei der Konstruktion von Ladesteckern und Ladebuchsen ein höherer Aufwand hinsichtlich der Isolationseigenschaften der verwendeten Komponenten betrieben werden. Um Unfälle durch Stromeinwirkung zu vermeiden, muss sichergestellt werden, dass Personen nicht mittels eines Elektrolyten (Wasser) mit der Ladespannung in Berührung kommen. Deshalb wird die Ladebuchse durch eine Abdeckung weitgehend gegen Berührung und Umwelteinflüsse geschützt. Es kann sich jedoch auch unter der Abdeckung Kondenswasser bilden oder Spritzwasser sammeln. Das Wasser sammelt sich z.B. in der Vertiefungen, die die Position des Ladesteckers in der Ladebuchse definiert oder in den Kontaktkammern, in denen sich die Kontaktelemente des Ladesteckers mit den Kontaktelementen der Ladebuchse treffen. Das Einstecken des Ladesteckers in eine mit Wasser gefüllte Ladebuchse kann dazu führen, dass ein Teil des Wassers unkontrolliert aus der Buchse herausspritzt und ein Teil in den Hohlräumen verbleibt. Beim Ladevorgang können dann Kriechströme auftreten, die die Funktion des Ladevorgangs beeinträchtigen. Es kann auch eine hohe Spannung an die Oberfläche des Ladesteckers gelangen und Personen gefährden. Langfristig können sich Ablagerungen in der Ladebuchse bilden und zu Fehlfunktionen beim Ladevorgang führen.The invention relates to a housing for an electrical connector with a dewatering device for dewatering the cavities of the electrical connector. The booming electromobility poses new challenges for motor vehicle manufacturers. For example, in electric vehicles, an interface for charging the vehicle batteries must be provided. This interface is also commonly called a charging socket. Conventionally, for this purpose, an electrical connector is provided on the vehicle, which is accessible from the outside. The parked vehicle can be connected by means of the charging socket and a connecting cable to the charging station. Wherein the connecting line has a corresponding charging plug. The charging socket is arranged so that the charging plug is inserted laterally into the body, similar to refueling a vehicle on a dispensing device. Since the charging voltage for electric vehicles is much higher than the on-board voltage of vehicles with internal combustion engine, in the design of charging plugs and charging sockets a higher effort in terms of the insulation properties of the components used must be operated. To avoid accidents due to the effect of electricity, it must be ensured that persons do not come into contact with the charging voltage by means of an electrolyte (water). Therefore, the charging socket is largely protected by a cover against contact and environmental influences. However, it may also form condensation under the cover or collect water spray. The water collects, for example, in the recesses, which defines the position of the charging plug in the charging socket or in the contact chambers, in which the contact elements of the charging plug meet with the contact elements of the charging socket. Inserting the charging plug into a charging socket filled with water can cause some of the water to splash out of the socket in an uncontrolled manner and leave a part in the cavities. During the charging process, leakage currents can occur which impair the function of the charging process. It can also be a high voltage to the Surface of the charging plug enter and endanger people. In the long term, deposits can form in the charging socket and lead to malfunctions during the charging process.

Um das Wasser aus dem elektrischen Verbinder herauszuleiten ist aus dem Stand der Technik eine Vorrichtung bekannt, die eine Dränage Öffnung an der Unterseite des elektrischen Verbinders vorsieht. Die Öffnung verläuft von der Aufhahmekontur (Vertiefungen die die Position des Ladesteckers definiert) durch die Seitenwand des Elektrischen Verbinders nach außen. Dadurch kann Wasser aus der Aufnahmekontur nach außen fließen. Diese Lösung hat allerdings den Nachteil, dass das Kondenswasser in den Hohlräumen, in denen sich die Kontaktelemente beim Einstecken des Ladesteckers mit den Kontaktelementen der Buchse treffen, nicht abfließen kann. Beim einstecken des Ladestecker wird vorhandenes Wasser nur teilweise aus den Kontaktkammern herausgedrückt wobei ein Rest in den Kontaktkammern verbleibt. EP0634818 offenbart eine Ladebuchse mit einer Entwässerungsvorrichtung.In order to remove the water from the electrical connector, a device is known from the prior art, which provides a drainage opening at the bottom of the electrical connector. The aperture extends outwardly from the receiving contour (recesses defining the position of the charging plug) through the sidewall of the electrical connector. This allows water to flow out of the receiving contour to the outside. However, this solution has the disadvantage that the condensation in the cavities in which meet the contact elements when inserting the charging plug with the contact elements of the socket, can not drain. When plugging in the charging plug existing water is only partially pushed out of the contact chambers leaving a residue in the contact chambers. EP0634818 discloses a charging socket with a dewatering device.

Es ist die Aufgabe der vorliegenden Erfindung, das oben erwähnte Problem zu überwinden und einen elektrischen Verbinder bereitzustellen bei dem sichergestellt ist, dass auftretende Wasser aus den Hohlräumen nach außerhalb des elektrischen Verbinders geleitet wird.It is the object of the present invention to overcome the above-mentioned problem and to provide an electrical connector in which it is ensured that occurring water is led out of the cavities to the outside of the electrical connector.

Die beanspruchte Erfindung löst diese Aufgabe durch ein Gehäuse mit den Merkmalen des Anspruch 1 und insbesondere dadurch, dass sich ein Ablaufkanal von der Bohrung durch die Rückwand des Gehäuses zur äußeren Oberfläche erstreckt, wobei in die äußere Oberfläche der Rückwand eine Entwässerungsnut geformt ist, die sich vom Ablaufkanal erstreckt und einen Fließpfad für ein Fluid zur Drainageöffnung bereitstellt, wobei die Entwässerungsnut direkt in die Drainageöffnung mündet. Gemäß einer bevorzugten Ausführungsform umfasst ein elektrischer Verbinder das erfindungsgemäße Gehäuse und eine Lage Dichtungsmaterial, die die äußere Oberfläche der Rückseite und die Entwässerungsnut abdeckt und eine Sicherungskappe am Gehäuse befestigbar, die das Dichtungsmaterial an der Rückseite hält.The claimed invention achieves this object by a housing with the features of claim 1 and in particular by a drainage channel extending from the bore through the rear wall of the housing to the outer surface, wherein in the outer surface of the rear wall a drainage groove is formed which extends from the drainage channel and provides a flow path for a fluid to the drainage hole, wherein the drainage groove opens directly into the drainage hole. According to a preferred embodiment, an electrical connector comprises the housing according to the invention and a sheet of sealing material covering the outer surface of the back surface and the drainage groove, and a fuse cap attachable to the housing holding the sealing material on the back surface.

Bei dem erfindungsgemäßen Gehäuse wird Wasser, das sich in der Bohrungen des Gehäuses niederschlägt oder Spritzwasser das ins Gehäuse gelangt, durch ein System von einem Kanal und einer Nut, kontrolliert zu einer Ablauföffnung geleitet. Von der Ablauföffnung kann das Wasser dann durch einen Schlauch oder ein Rohr nach außerhalb des Fahrzeugs geleitet werden. Das Kanalsystem verhindert generell ein Ansammeln von Wasser in der Kontaktkammer so dass sich keine Korrosion an dem elektrischen Kontaktelement bilden kann.In the housing according to the invention, water which precipitates in the bores of the housing or splashing water which enters the housing is passed through a system of a channel and a groove, controlled to a drain opening. From the drain opening, the water can then be passed through a hose or a pipe to the outside of the vehicle. The channel system generally prevents accumulation of water in the contact chamber so that no corrosion can form on the electrical contact element.

Mit einer Lage Dichtungsmaterial auf der Rückseite des Steckverbinders, werden die Nut und das Kontaktelement gedichtet. Die Lage Dichtungsmaterial deckt die rückseitige Oberfläche des Stecker Gehäuses ab, wodurch die offene Seite der Ablaufnut geschlossen wird und das Wasser nun in einem rohrförmigen Gebilden in Richtung der Drainageöffnung geführt wird. Das elektrische Kontaktelement tritt aus der Rückseite des Gehäuses und durch die Lage Dichtungsmaterial. Das Dichtungsmaterial schmiegt sich umfänglich um das Kontaktelement und dichtet so den Anschlussbereich des Kontaktelements gegen die Rückseite des Gehäuses. So wird erreicht, dass der Bereich, in dem die Kontaktelemente mit den elektrischen Leitungen verbunden werden, trocken bleibt. Eine Sicherungskappe hält das Dichtungsmaterial in seiner Position und übt einen leichten Druck auf das Dichtungsmaterial aus, wodurch die Dichtwirkung verbessert wird.
Vorteilhafte Ausbildungen der Erfindung sind den Unteransprüchen, der Beschreibung und der Zeichnung zu entnehmen.With a layer of sealing material on the back of the connector, the groove and the contact element are sealed. The layer of sealing material covers the back surface of the plug housing, whereby the open side of the drainage groove is closed and the water is now guided in a tubular formation in the direction of the drainage opening. The electrical contact element emerges from the back of the housing and through the layer of sealing material. The sealing material wraps circumferentially around the contact element and thus seals the connection region of the contact element against the rear side of the housing. This ensures that the area in which the contact elements are connected to the electrical lines remains dry. A safety cap holds the sealing material in place and exerts a slight pressure on the sealing material, thereby improving the sealing effect.
Advantageous embodiments of the invention are described in the dependent claims, the description and the drawings.

Bevorzugt sind die Entwässerungsnut und der zylindrischer Kanal, vor der Drainageöffnung, durch eine Öffnung fluidisch miteinander verbunden.. Bei dieser Ausführungsform münden die Entwässerungsnuten in den zylindrischen Kanal und nutzen ihn als Teil des Fließpfades zur Drainageöffnung.Preferably, the drainage groove and the cylindrical channel, in front of the drainage opening, are fluidly connected to each other through an opening. In this embodiment, the drainage grooves open into the cylindrical channel and use it as part of the flow path to the drainage opening.

Bevorzugt weist der innere Bereich zwei oder mehr sich axial ausbreitende Bohrungen auf. Dabei entspricht die Anzahl der Ablaufkanäle durch die Rückwand und die Anzahl der Entwässerungsnuten der Anzahl der Bohrungen. Jede Bohrung verfügt über einen separaten Fließpfad.Preferably, the inner region has two or more axially extending bores. The number of drainage channels through the back wall and the number of drainage grooves corresponds to the number of holes. Each hole has a separate flow path.

Bevorzugt ist die axiale Richtung A im Wesentlichen rechtwinklig zu der Ebene der Rückwand. Es sind aber auch andere Winkel denkbar, die durch beengte Einbaulagen erforderlich werden.Preferably, the axial direction A is substantially perpendicular to the plane of the rear wall. But there are also other angles conceivable, which are required by cramped mounting positions.

Nach einer weiteren Ausführungsform wird das Gehäuse durch ein Spritzgussverfahren hergestellt. Es ist natürlich jedes Verfahren möglich, mit dem ein Kunststoffgehäuse hergestellt werden kann, wie z.B. Fräsen, oder Verfahren mittels schichtenweisem Aufbau wie
Stereolithografie.According to a further embodiment, the housing is produced by an injection molding process. Of course, any method that can be used to make a plastic housing, such as milling, or a layered construction method, is possible
Stereolithography.

Nach einer weiteren Ausführungsform besteht die Lage Dichtungsmaterial aus einem Elastomeren-Material. Wobei Naturkautschuk oder Silikonkautschuk verwendet werden kann. Das Dichtungsmaterial kann auf die Rückseite des Gehäuses geklebt werden und / oder durch eine Kappe in Position gehalten werden.According to a further embodiment, the layer of sealing material consists of an elastomeric material. Where natural rubber or silicone rubber can be used. The sealing material may be glued to the back of the housing and / or held in place by a cap.

Bevorzugt wird die Sicherungskappe an das Gehäuse geschraubt. Die Sicherungskappe kann aber auch mittels Kleben oder einem Schnappverschluß befestigt werden. Auch wäre es möglich die Kappe mittels Schweißen, z.B. mittels Ultraschallschweißen, zu befestigen.Preferably, the safety cap is screwed to the housing. The safety cap can also be attached by gluing or a snap closure. It would also be possible to use the cap by welding, e.g. by ultrasonic welding, to attach.

Bevorzugt wird der Leiteranschlussbereich der Kontaktelemente als Crimpbereich ausgeführt. Der Leiteranschlussbereich kann aber auch so ausgeführt sein das er für alle gängigen Kontaktier verfahren, wie z.B. Löten oder Ultraschallschweißen, geeignet ist.The conductor connection region of the contact elements is preferably designed as a crimping region. The conductor connection area can also be designed so that he suitable for all common Kontaktier method, such as soldering or ultrasonic welding.

Nachfolgend wird die Erfindung anhand einer vorteilhaften Ausführungsform rein beispielhaft unter Bezugnahme auf der beigefügten Zeichnung beschrieben. Es werden die gleiche Bezugszeichen für Merkmale benutzt, die sowohl in der bekannten Anordnung 1 sowie in der Erfindung in 2-6A dargestellt sind. Es zeigen:

Fig. 1
Zeigt einen elektrischer Verbinder aus dem Stand der Technik in Schnittdarstellung und Draufsicht.
Fig. 2
ist eine Rückansicht eines elektrischen Verbinders gemäß der vorliegenden Erfindung mit elektrischen Anschlüssen
Fig. 3
ist eine Rückansicht des elektrischen Verbinders aus Abbildung 2 mit Dichtung
Fig. 4
ist eine Rückansicht des elektrischen Verbinders aus Abbildung 3 mit angebrachter Sicherungskappe
Fig. 5 und 5A
sind Querschnittsansichten des elektrischen Verbinders aus Abbildung 4 entlang der Linie VV, und
Fig. 6 und 6A
sind Querschnittsansichten des elektrischen Verbinders aus Abbildung 4 entlang der Linie VI-VI.
The invention will be described below with reference to an advantageous embodiment purely by way of example with reference to the accompanying drawings. The same reference numerals are used for features shown in both the prior art arrangement 1 and in the invention in Figs. 2-6A. Show it:
Fig. 1
Shows a prior art electrical connector in section and plan view.
Fig. 2
Figure 11 is a rear view of an electrical connector according to the present invention with electrical connections
Fig. 3
is a rear view of the electrical connector of Figure 2 with gasket
Fig. 4
is a rear view of the electrical connector of Figure 3 with the fuse cap attached
Fig. 5 and 5A
are cross-sectional views of the electrical connector Figure 4 along the line VV, and
FIGS. 6 and 6A
are cross-sectional views of the electrical connector Figure 4 along the line VI-VI.

Figur 1 zeigt eine aus dem Stand der Technik bekannte Ausführung eines elektrischen Verbinders mit einem Entwässerungssystem. Der elektrische Verbinder 10 umfasst ein Gehäuse 12 mit einer Außenwand 14, die sich in einer axialen Richtung A aus einer im Wesentlichen ebenen Rückwand 16 erstreckt. Die axiale Richtung A entspricht der Steckrichtung beim Zusammenstecken mit einem entsprechenden elektrischen Gegenstecker. Die Ebene der Rückwand 16 bildet mit der axialen Richtung A einen rechten Winkel. Wenn der elektrische Verbinder 10 im eingebauten Zustand ist (z.B. in einem Fahrzeug, als Ladebuchse) verläuft die die axiale Richtung A im Wesentlichen in waagerechter Richtung. Innerhalb der Außenwand 14 weist das Gehäuse 12 einen inneren Bereich 18 auf. Im inneren Bereich 18 befindet sich eine Anzahl von rohrförmigen Bohrungen 20, die parallel zueinander, in axialer Richtung A verlaufen. Jede Bohrung 20 ist an einem Ende durch die Rückwand 16 begrenzt und am gegenüberliegenden Ende 32 offen. Ein zylindrischer Kanal 28 ist im Gehäuse 12 zwischen der Außenwand 14 und dem inneren Bereich 18 ausgebildet. Der zylindrische Kanal 28 ist an einem Ende durch die Rückwand 16 geschlossen und am gegenüberliegenden Ende 32 offen. Bei Verbinden des elektrischen Verbinders 10 mit einem Gegenstecker (nicht gezeigt) wird der Gegenstecker, entlang der axialen Richtung A, vom offenen Ende 32 beginnend, zum elektrischen Verbinder 10 hin bewegt. Der zylindrische Kanal 28 führt dabei den Gegenstecker in die richtige Position. Mit jeder Bohrung 20 ist ein elektrisches Kontaktelement 22 (männlich oder weiblich) verbunden. Jedes Kontaktelement 22 ist durch die Rückwand 16 geführt und in ihr befestigt. Jedes Kontaktelement 22 weist einen Kontaktbereich 24 und einen Verbindungsabschnitt 26 (z. B. ein Crimp-Abschnitt) auf. Der Kontaktbereich erstreckt sich innerhalb der Bohrung 20 und der Verbindungsabschnitt 26 auf der gegenüberliegenden Seite der Rückwand 16. Der Verbindungsabschnitt 26 dient zur Verbindung mit einem elektrischen Leiter (nicht dargestellt). Eine Drainageöffnung 30 ist in der Außenwand 14 an einer Position angebracht, die sich im unteren Bereich (wenn der elektrische Verbinder 10 in Einbaulage ist) des Kanals, nahe der Rückwand 16 befindet. Der Kanal 28 mündet in die Drainageöffnung 30. Der Inhalt des Kanals 28 (z.B. Wasser) kann auf diese Weise durch die Drainageöffnung 30 aus dem Kanal 28 abfließen. FIG. 1 shows a known from the prior art embodiment of an electrical connector with a drainage system. The electrical connector 10 includes a housing 12 having an outer wall 14 that extends in an axial direction A from a substantially planar rear wall 16. The axial direction A corresponds to the plugging direction when mating with a corresponding electrical mating connector. The plane of the rear wall 16 forms with the axial direction A is a right angle. When the electrical connector 10 is in the installed state (eg in a vehicle, as a charging socket), the axial direction A is substantially in the horizontal direction. Within the outer wall 14, the housing 12 has an inner region 18. In the inner region 18 is a number of tubular holes 20 which extend parallel to each other, in the axial direction A. Each bore 20 is bounded at one end by the rear wall 16 and open at the opposite end 32. A cylindrical channel 28 is formed in the housing 12 between the outer wall 14 and the inner portion 18. The cylindrical channel 28 is closed at one end by the rear wall 16 and open at the opposite end 32. When connecting the electrical connector 10 to a mating connector (not shown), the mating connector is moved toward the electrical connector 10 along the axial direction A starting from the open end 32. The cylindrical channel 28 leads the mating connector in the correct position. Each bore 20 has an electrical contact element 22 (male or female) connected to it. Each contact element 22 is guided by the rear wall 16 and fixed in it. Each contact element 22 has a contact region 24 and a connection section 26 (eg a crimp section). The contact area extends within the bore 20 and the connecting portion 26 on the opposite side of the rear wall 16. The connecting portion 26 is for connection to an electrical conductor (not shown). A drainage port 30 is mounted in the outer wall 14 at a position located at the lower portion (when the electrical connector 10 is in the installed position) of the channel near the rear wall 16. The channel 28 opens into the drainage opening 30. The contents of the channel 28 (eg water) can flow out of the channel 28 through the drainage opening 30 in this way.

Figur 2 zeigt ein Gehäuse 112 das für einen elektrischen Verbinder 110 vorgesehen ist. Das Gehäuse 112 weist eine im Wesentlichen ebene Rückwand 116 und eine im Wesentlichen zylindrische Außenwand 14 auf, die sich in axialer Richtung A von der Rückwand erstreckt. Die Rückwand 116 besitzt eine äußere Oberfläche 34 die sich auf der gegenüberliegenden Seite der Rückwand 116 befindet. FIG. 2 shows a housing 112 which is provided for an electrical connector 110. The housing 112 has a substantially planar rear wall 116 and a substantially cylindrical outer wall 14 which extends in the axial direction A from the rear wall. The rear wall 116 has an outer surface 34 located on the opposite side of the rear wall 116.

Die äußere Oberfläche 34 liegt dem inneren Bereich 18, durch die Rückwand 116 getrennt, gegenüber. Ein Ablaufkanal 36 erstreckt sich durch die Rückwand 116 des Gehäuses 112 von der äußeren Oberfläche 34 der Rückwand 116 und verbindet die jeweilige Bohrungen 20 mit der äußeren Oberfläche 34. Eine Entwässerungsnut 38 ist in die äußere Oberfläche 34 der Rückwand 116 eingeprägt. Die Entwässerungsnut 38 erstreckt sich von jedem Ablaufkanal 36 zu der Drainageöffnung 30 um einen Fließpfad für Wasser zu bilden. Eine Drainageöffnung 30 in der Außenwand 14 stellt eine Verbindung des zylindrischen Kanals 28 nach außerhalb des Gehäuses her. In der dargestellten Ausführungsform sind sieben Bohrungen 20 dargestellt, aber die vorliegende Erfindung bezieht sich auf ein Gehäuse 112 mit einer beliebigen Anzahl von Bohrungen.The outer surface 34 faces the inner region 18, separated by the rear wall 116. A drainage channel 36 extends through the rear wall 116 of the housing 112 from the outer surface 34 of the rear wall 116 and connects the respective bores 20 to the outer surface 34. A drainage groove 38 is embossed into the outer surface 34 of the rear wall 116. The drainage groove 38 extends from each drainage channel 36 to the drainage hole 30 to form a flow path for water. A drainage opening 30 in the outer wall 14 provides a connection of the cylindrical channel 28 to the outside of the housing. In the illustrated embodiment, seven bores 20 are illustrated, but the present invention relates to a housing 112 having any number of bores.

Figur 3 zeigt ebenfalls das Gehäuse 112 das für einen elektrischen Verbinder 110 vorgesehen ist. Die äußere Oberfläche 34 der Rückwand 116 ist in dieser Darstellung mit einer Schicht aus Dichtungsmaterial 40 abgedeckt. Die Schicht aus Dichtungsmaterial 40 liegt auf der äußeren Oberfläche 34 auf. Dadurch bildet sich aus der Entwässerungsnut 38 und der Schicht aus Dichtungsmaterial 40 ein rohrförmiger Kanal. Der Kanal führt vom Ablaufkanal 36 zur Drainageöffnung 30 und bildet einen Fließpfad für das Wasser. Es sind Öffnungen 41 in der Schicht aus Dichtungsmaterial 40 vorgesehen, durch die die Kontaktelemente 22 bei der Montage des elektrischen Verbinders hindurchgesteckt werden. FIG. 3 also shows the housing 112 provided for an electrical connector 110. The outer surface 34 of the rear wall 116 is covered in this illustration with a layer of sealing material 40. The layer of sealing material 40 rests on the outer surface 34. As a result, the drainage groove 38 and the layer of sealing material 40 form a tubular channel. The channel leads from the drainage channel 36 to the drainage hole 30 and forms a flow path for the water. There are provided openings 41 in the layer of sealing material 40, through which the contact elements 22 are inserted during assembly of the electrical connector.

Figur 4 zeigt die Rückansicht eines elektrischen Verbinders 110. An der Rückseite des Gehäuses 112 wird, nachdem die Schicht aus Dichtungsmaterial 40 aufgebracht wurde, eine Sicherungskappe 42 angebracht. Die Sicherungskappe 42 hält die Schicht aus Dichtungsmaterial 40 dauerhaft an der äußeren Oberfläche 34 der Rückwand 116. Die Kontaktelemente 22 ragen durch die Öffnungen 41 in der Schicht aus Dichtungsmaterial 40 in die Sicherungskappe 42. Die Schicht aus Dichtungsmaterial 40 schmiegt sich an den Rändern der Öffnung 41 an das Kontaktelement 22, wodurch der Leiteranschlussbereich 26 zusätzlich gedichtet wird. Figuren 5 und 5A zeigen eine Schnittansicht des elektrischen Verbinders 110 nach Figur 4. Der Schnitt erfolgt entlang der Linie V. In dieser Darstellung ist der Verlauf des Fließpfades gut zu sehen. Im unteren Bereich der Bohrung 20 beginnt der Ablaufkanal 36 und durchdringt die Rückwand 116 verläuft dann auf der äußeren Oberfläche 34 in der Entwässerungsnut 38 und mündet dann in der Drainageöffnung 30. FIG. 4 shows the rear view of an electrical connector 110. At the rear of the housing 112, after the layer of sealing material 40 has been applied, a safety cap 42 is attached. The securing cap 42 permanently retains the layer of sealing material 40 against the outer surface 34 of the back wall 116. The contact elements 22 protrude through the openings 41 in the layer of sealing material 40 into the securing cap 42. The layer of sealing material 40 conforms to the edges of the opening 41 to the contact element 22, whereby the conductor connection region 26 is additionally sealed. FIGS. 5 and 5A show a sectional view of the electrical connector 110 after FIG. 4 , The section is taken along the line V. In this illustration, the Good to see the course of the flow path. In the lower region of the bore 20, the drainage channel 36 begins and penetrates the rear wall 116 then runs on the outer surface 34 in the Entwässerungsnut 38 and then flows into the drainage port 30th

Figuren 6 und 6A zeigen auch eine Schnittansicht des elektrischen Verbinders 110 nach Figur 4. Der Schnitt erfolgt dieses Mal entlang der Linie VI. In dieser Darstellung ist der Verlauf des Fließpfades im Bereich der Drainageöffnung 30 gut zu sehen. Die Entwässerungsnut 38 und der zylindrischer Kanal 28 sind vor der Drainageöffnung 30 durch eine Öffnung miteinander verbunden. Dadurch kann Wasser sowohl aus dem zylindrischen Kanal 28, wie auch aus der Entwässerungsnut 38 durch die Drainageöffnung 30 abfließen. Figures 6 and 6A also show a sectional view of the electrical connector 110 after FIG. 4 , The cut is made this time along the line VI. In this illustration, the course of the flow path in the region of the drainage opening 30 is clearly visible. The drainage groove 38 and the cylindrical channel 28 are connected to each other in front of the drainage hole 30 through an opening. As a result, water can flow out of the cylindrical channel 28 as well as out of the drainage groove 38 through the drainage opening 30.

Claims (9)

  1. Housing (12, 112) composed of an electrically insulating material for an electrical connector (10, 110), comprising
    a substantially planar rear wall (16, 116),
    a substantially cylindrical outer wall (14) which extends out from the rear wall in axial direction (A), and
    an inner region (18) which extends from the rear wall in axial direction (A) and is arranged radially within the outer wall,
    a cylindrical channel (28) is defined by the outer wall and the inner region and extends radially inwards from the outer wall and from the rear wall,
    the outer wall has a drainage opening (30) to the cylindrical channel,
    the inner region has a bore (20) which extends in axial direction (A) and is delimited by the rear wall at one end and is open at the other end (32),
    the rear wall has an outer surface (34) which is located on that side of the wall which is situated opposite the inner region,
    characterized in that
    an outlet channel (36) extends from the bore (20), through the rear wall (116) of the housing, to the outer surface (34), wherein a draining groove (38) is formed in the outer surface of the rear wall,
    which draining groove extends from the outlet channel (36) and provides a flow path for a fluid to the drainage opening (30), wherein the draining groove (38) issues directly into the drainage opening (30).
  2. Housing (12, 112) according to Claim 1, characterized in that the draining groove (38) and the cylindrical channel (28), upstream of the drainage opening (30), are fluidically connected to one another by an opening.
  3. Housing (12, 112) according to Claims 1 and 2, characterized in that the inner region (18) comprises two or more axially propagating bores (20), wherein the number of outlet channels (36) through the rear wall (116) and the number of draining grooves (38) corresponds to the number of bores.
  4. Housing (12, 112) according to Claims 1 to 3, characterized in that the axial direction (A) is substantially perpendicular to the plane of the rear wall (116).
  5. Housing (12, 112) according to Claims 1 to 4, characterized in that the housing is produced using an injection-moulding process.
  6. Electrical connector (10, 110), comprising a housing (12, 112) according to one of the preceding claims,
    wherein a layer of sealing material (40) which covers the outer surface of the rear side and the draining groove (38),
    and a safety cap (42) which can be fastened to the housing and holds the sealing material on the rear side.
  7. Electrical connector (10, 110) according to Claim 6,
    characterized in that the layer of sealing material (40) is composed of an elastomeric material.
  8. Electrical connector (10, 110) according to Claim 6,
    characterized in that the safety cap (42) is screwed to the housing (12, 112).
  9. Electrical connector (10, 110) according to Claim 6,
    characterized in that the conductor connection region (26) is embodied as a crimped region.
EP12185492.1A 2011-09-21 2012-09-21 Housing for an electrical connector with a drainage device Active EP2573880B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB1116284.9A GB201116284D0 (en) 2011-09-21 2011-09-21 Electrical connector with drainage system

Publications (2)

Publication Number Publication Date
EP2573880A1 EP2573880A1 (en) 2013-03-27
EP2573880B1 true EP2573880B1 (en) 2019-02-20

Family

ID=44937603

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12185492.1A Active EP2573880B1 (en) 2011-09-21 2012-09-21 Housing for an electrical connector with a drainage device

Country Status (2)

Country Link
EP (1) EP2573880B1 (en)
GB (1) GB201116284D0 (en)

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US11325488B2 (en) 2019-09-20 2022-05-10 Tyco Electronics France Sas Housing for a charging device for a vehicle

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DE102013110547B4 (en) * 2013-09-24 2020-02-06 Phoenix Contact E-Mobility Gmbh Connector part with a drainage
DE202015104315U1 (en) 2015-08-17 2016-11-18 Phoenix Contact E-Mobility Gmbh Connector part with a drainage
DE102015113519A1 (en) 2015-08-17 2017-02-23 Phoenix Contact E-Mobility Gmbh Connector part with a drainage
DE102016121847B4 (en) 2016-11-15 2019-06-06 Phoenix Contact E-Mobility Gmbh Connector part and method for mounting a connector part
DE102017111752A1 (en) 2017-05-30 2018-12-06 B. Braun Melsungen Ag Electrical plug connection
DE102018112952A1 (en) * 2018-05-30 2019-12-05 Innogy Se Charging station for charging an energy storage of an electric vehicle
DE102018112985A1 (en) * 2018-05-30 2019-12-05 Innogy Se Charging station for charging an energy storage of an electric vehicle
EP4175076A1 (en) * 2021-10-27 2023-05-03 Rosenberger Hochfrequenztechnik GmbH & Co. KG Connector housing component, connector and connector assembly

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JP2575981Y2 (en) * 1993-08-18 1998-07-02 住友電装株式会社 Drainage structure of electrical junction box
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Also Published As

Publication number Publication date
EP2573880A1 (en) 2013-03-27
GB201116284D0 (en) 2011-11-02

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