EP3926762A1 - Protective contact socket - Google Patents
Protective contact socket Download PDFInfo
- Publication number
- EP3926762A1 EP3926762A1 EP21305476.0A EP21305476A EP3926762A1 EP 3926762 A1 EP3926762 A1 EP 3926762A1 EP 21305476 A EP21305476 A EP 21305476A EP 3926762 A1 EP3926762 A1 EP 3926762A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- socket
- contact
- base
- grounding
- earthing
- 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
Links
- 230000001681 protective effect Effects 0.000 title claims description 15
- 230000037431 insertion Effects 0.000 claims description 9
- 238000003780 insertion Methods 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000002105 tongue Anatomy 0.000 description 1
Images
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
- H01R24/76—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with sockets, clips or analogous contacts and secured to apparatus or structure, e.g. to a wall
- H01R24/78—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with sockets, clips or analogous contacts and secured to apparatus or structure, e.g. to a wall with additional earth or shield contacts
-
- 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
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/652—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding with earth pin, blade or socket
-
- 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
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/655—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding with earth brace
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2103/00—Two poles
Definitions
- the present invention relates to a protective contact socket, comprising a base with electrical plug contacts, a grounding bracket attached to the base and having a base and at least one grounding contact connected to the base, and a cover provided with a socket pot with at least one slot through which the grounding contact protrudes into the socket pot.
- Protective contact sockets of the above type are known from the prior art in many embodiments.
- the sockets are designed so that when a plug is inserted, a connection to the grounding contact is established before the contact pins of the plug establish an electrical connection with the electrical plug contacts that are connected to the supply network.
- the earthing contact of the protective contact socket must assume a predetermined position with a very low tolerance. In known sockets, this is to be achieved in that the ground contact presses with the outer wall of the socket pot against part of the grounding bracket when the cover is installed, so that the ground contact assumes a predetermined position when the cover is installed.
- the socket pot may be deformed during assembly of the socket outlet if a fastening screw passed through the center of the bottom of the socket pot is tightened.
- a fastening screw passed through the center of the bottom of the socket pot is tightened.
- not only the floor, but also the wall of the socket pot is deformed - even if only slightly - so that the desired target position of the grounding contact also changes. Since usually two If there are opposite earthing contacts, this also changes the distance between the earthing contacts prescribed by the standards.
- sockets are increasingly equipped with electronic components for which space is required.
- sockets in which, due to other components of the socket, very little space is available outside the socket pot, so that the grounding contact can only be supported to a very limited extent on the outer jacket of the socket pot.
- the ground contact can have a transverse web at its outer end.
- the outer end or the free end of the grounding contact can either be attached to the Fix the cover or on the base or a component connected to the base against undesired displacement, so that the above-mentioned effect does not occur.
- the crossbar is locked by the outer wall of the socket pot, this point is - in contrast to the prior art - not in the area of the bottom of the socket pot, but near the front face of the socket, i.e. in an area that is tightened the fastening screw for the cover is at most slightly deformed. In this way, a desired target position of the grounding contact protruding through the slot into the socket outlet and, if two grounding contacts are present, compliance with a prescribed distance is ensured in a simple manner.
- the transverse web and a region of the grounding contact adjoining the transverse web can form an end section which is T-shaped in plan view and which is in particular flat. This creates a symmetrical arrangement which provides additional protection against bending of the ground contact out of the slot.
- the base or a component firmly connected to the base can form at least one stop for the transverse web.
- the base can have a wall or a web, which are designed as a stop for the transverse web.
- the stop can also be provided on a support ring which is firmly connected to the base and which is used in a known manner for mounting the socket.
- the stop can block the transverse web in a direction transverse to the plug-in direction of the socket. In this way it can be prevented that the grounding contact is undesirable in the area of its front end, that is to say towards the front end of the socket outlet moved transversely to the direction of insertion. If there are two grounding contacts, the stop limits a movement of the two grounding contacts towards one another, so that a desired setpoint distance can be maintained.
- the stop can block the transverse web in the direction of the plug-in direction of the socket. In this way, it is prevented that the grounding contact is undesirably deformed if forces are exerted on it from above in the insertion direction, for example through improper insertion of a plug or during transport.
- the ground contact can be bent in the area of its front or outer end to form a loop which enters the socket through the slot and exits it again through the slot. This also contributes to protection against bending of the ground contact.
- this relates to a grounding bracket, in particular for a protective contact socket of the type described above, the grounding bracket having a base and at least one grounding contact connected to the base, which has a transverse web at its outer (free) end.
- the grounding bracket can be designed as described above. It can be advantageous here if the grounding contact is bent into a loop, the curvature of which has a point of inflection. As a result, the transverse web can be oriented, for example, parallel to the bottom of the socket outlet, so that a contact surface of the transverse web with the lowest tolerances is ensured by a corresponding stop surface.
- the grounding bracket can be a one-piece stamped and bent part with a strip-shaped base, which has a grounding contact at each of its two ends, the outer end of which has a transverse web, wherein a fastening opening can be provided in the center of the base in particular.
- a grounding bracket can be manufactured inexpensively, which is of great advantage in particular for a mass-produced item such as sockets.
- Figs. 1 and 2 show a protective contact socket 10, which has a base 12 with two electrical contacts 14 (in Fig. 2 only one can be seen), which are connected to electrical connection terminals in a manner known per se.
- a centrally arranged grounding bracket 15 is connected to the base 12 and has a base 16, at the two outer ends of which a grounding contact 18 is provided in one piece. The grounding bracket is connected to a grounding terminal (not shown).
- a viewing frame 20 is placed on the base 12 and is held by a cover 22 that is screwed to the base 12.
- the cover 22 is provided in one piece in a manner known per se with a socket pot 24 into which a suitable safety plug can be plugged.
- a socket pot 24 into which a suitable safety plug can be plugged.
- two diametrically opposite slots 26 are provided (in Fig. 1 only one can be seen), a grounding contact 18 protruding through each slot 26 into the socket pot 24.
- a support ring 28 is attached to the base 12, with which the base can be screwed into a cavity wall socket, for example.
- fastening claws 30 are provided with which the base can be clamped in a wall or box.
- FIG. 11 shows a perspective view of a grounding bracket 15 as it is in the embodiment of FIGS. 1 and 2 Can apply.
- the base 16 of the earthing bracket 15 is strip-shaped and has a fastening opening 32 in its center, through which, for example, a rivet for fastening the earthing bracket to the base can be passed.
- a grounding contact 18 is formed in one piece, each of which is bent into a loop.
- the curvature of the loop however, has a point of inflection W and beyond the point of inflection W a transverse web 34 is formed at the outer end of each ground contact 18. How about it Fig. 3 clarified, with each grounding contact 18 the transverse web 34 and an area adjoining it in the direction of the loop form an end section 36 which is T-shaped in plan view and which is essentially planar and runs in a plane parallel to the base 16.
- FIGS. 5 to 7 show enlarged partial representations that make it clear how the grounding bracket 15 or the grounding contact 18 is arranged relative to the base 12.
- the base 12 is provided with a wall section 38 which has an upwardly open U-shaped recess 40 through which the grounding contact 18 is passed.
- the outside of the wall section 38 forms a stop for the transverse web 34, so that it cannot move in a direction transverse to the plug-in direction of the socket outlet and in the direction of the opposite grounding contact 18.
- the transverse web 34 can be moved somewhat in the insertion direction when a force K is exerted on the grounding contact 18 in the insertion direction.
- a web 42 is provided on the base 12, which serves as a stop for the transverse web 34 when it is acted upon by a force K in the insertion direction.
- FIG. 4 a slightly modified embodiment of a grounding bracket 15, in which a loop-shaped grounding contact 18 is again formed at the two ends of the base 16.
- a transverse web 34 is again provided at the outer or free end of the grounding contact 18. However, this does not extend parallel to the base 16, but perpendicular to it.
- two curved tongues 46 are provided on the transverse web 34 in this embodiment, which, when the cover 22 is put on, facilitate the insertion of the grounding contact 18 into the slot 26 in the peripheral wall of the socket pot 24 is provided.
- the transverse web 34 in this embodiment forms a stop for the grounding contact 18, which is not located in the region of the bottom 25 of the socket pot 24. Rather, the transverse web 34 fixes the position of the grounding contact 18 in an area of the peripheral wall of the socket pot 24 which is close to the area of the inlet of the socket pot 24. This area is only slightly deformed when the base 25 is deformed by tightening a fastening screw.
- FIGS. 8 and 9 show a further embodiment of a protective contact socket, the same reference numerals being used for the same components.
- Fig. 9 the grounding contact 18 in a position in which it is when the plug is inserted, but the plug itself is not shown.
- Fig. 9 clearly shows, when the plug is inserted, the grounding contact 18 is not only pressed radially outward through the slot but also pressed downward in the insertion direction until the transverse web 34 strikes the support frame 28. However, no part of the grounding contact 18 is located below the support frame 28, so that this area can be used for stiffening components, electronic components or the like.
- the cover 22 is designed so that the area outside the socket pot is kept very small up to the edge of the cover.
- the cover 22 - as in all embodiments - has a circular edge extending parallel to the wall of the socket pot, which extends into the interior of the socket. In this embodiment, only a very small amount of free space remains in the area between the circumferential edge without the socket pot.
- the grounding contact 18 is inserted in the area of the bottom of the socket pot and is led out again in the area of the upper end of the slot of the socket pot, the grounding contact can also be used when the plug is inserted ( Fig. 11 ) Find space and support itself at its free outer end through the crosspiece 34 on the support frame 28.
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
Eine Schutzkontaktsteckdose umfasst einen Sockel mit elektrischen Steckkontakten, einen an dem Sockel befestigten Erdungsbügel mit Erdungskontakten sowie eine mit einem Steckdosentopf versehene Abdeckung mit zumindest einem Schlitz, durch den der Erdungskontakt in den Steckdosentopf hineinragt.A socket outlet with earthing contact comprises a base with electrical plug contacts, a grounding clip fastened to the base with grounding contacts and a cover provided with a socket pot with at least one slot through which the grounding contact protrudes into the socket pot.
Description
Die vorliegende Erfindung betrifft eine Schutzkontaktsteckdose, umfassend einen Sockel mit elektrischen Steckkontakten, einen an dem Sockel befestigten Erdungsbügel, der eine Basis und zumindest einen mit der Basis verbundenen Erdungskontakt aufweist, sowie eine mit einem Steckdosentopf versehene Abdeckung mit zumindest einem Schlitz, durch welchen der Erdungskontakt in den Steckdosentopf hineinragt.The present invention relates to a protective contact socket, comprising a base with electrical plug contacts, a grounding bracket attached to the base and having a base and at least one grounding contact connected to the base, and a cover provided with a socket pot with at least one slot through which the grounding contact protrudes into the socket pot.
Schutzkontaktsteckdosen der vorstehenden Art sind aus dem Stand der Technik in vielen Ausführungsformen bekannt. Hierbei sind die Steckdosen so ausgebildet, dass bei Einstecken eines Steckers eine Verbindung mit dem Erdungskontakt hergestellt wird, bevor die Kontaktstifte des Steckers eine elektrische Verbindung mit den elektrischen Steckkontakten herstellen, die mit dem Versorgungsnetz verbunden sind. Um diese Funktion ordnungsgemäß zu erfüllen, muss der Erdungskontakt der Schutzkontaktsteckdose mit einer sehr geringen Toleranz eine vorbestimmte Position einnehmen. Bei bekannten Steckdosen soll dies dadurch erreicht werden, dass der Erdungskontakt bei Montage der Abdeckung mit der äußeren Wandung des Steckdosentopfes gegen einen Teil des Erdungsbügels drückt, so dass der Erdungskontakt bei montierter Abdeckung eine vorbestimmte Position einnimmt.Protective contact sockets of the above type are known from the prior art in many embodiments. Here, the sockets are designed so that when a plug is inserted, a connection to the grounding contact is established before the contact pins of the plug establish an electrical connection with the electrical plug contacts that are connected to the supply network. In order to properly fulfill this function, the earthing contact of the protective contact socket must assume a predetermined position with a very low tolerance. In known sockets, this is to be achieved in that the ground contact presses with the outer wall of the socket pot against part of the grounding bracket when the cover is installed, so that the ground contact assumes a predetermined position when the cover is installed.
Es hat sich allerdings herausgestellt, dass der Steckdosentopf bei der Montage der Steckdose unter Umständen verformt wird, wenn eine durch die Mitte des Bodens des Steckdosentopfes durchgeführte Befestigungsschraube festgezogen wird. Als Folge davon deformiert sich nicht nur der Boden, sondern auch die Wand des Steckdosentopfes - wenn auch nur geringfügig -, so dass sich auch die gewünschte Sollposition des Erdungskontaktes verändert. Da üblicherweise zwei gegenüberliegende Erdungskontakte vorhanden sind, verändert sich hierdurch auch der normativ vorgeschriebene Abstand zwischen den Erdungskontakten.However, it has been found that the socket pot may be deformed during assembly of the socket outlet if a fastening screw passed through the center of the bottom of the socket pot is tightened. As a result, not only the floor, but also the wall of the socket pot is deformed - even if only slightly - so that the desired target position of the grounding contact also changes. Since usually two If there are opposite earthing contacts, this also changes the distance between the earthing contacts prescribed by the standards.
Ein weiteres Problem kann sich dadurch ergeben, dass Steckdosen zunehmend mit elektronischen Bauteilen ausgestattet sind, für die Platz benötigt wird. Auch gibt es Ausführungsformen von Steckdosen, bei denen aufgrund von anderen Bauteilen der Steckdose außerhalb des Steckdosentopfes nur sehr wenig Platz zur Verfügung steht, so dass sich der Erdungskontakt am Außenmantel des Steckdosentopfes nur sehr bedingt abstützen kann.Another problem can arise from the fact that sockets are increasingly equipped with electronic components for which space is required. There are also embodiments of sockets in which, due to other components of the socket, very little space is available outside the socket pot, so that the grounding contact can only be supported to a very limited extent on the outer jacket of the socket pot.
Es ist die Aufgabe der vorliegenden Erfindung, eine Schutzkontaktsteckdose der vorstehend beschriebenen Art derart zu verbessern, dass insbesondere bei beengten Platzverhältnissen auf einfache Weise eine gewünschte Sollposition des Erdungskontaktes nach Montage der Steckdose sichergestellt werden kann.It is the object of the present invention to improve a protective contact socket of the type described above in such a way that a desired setpoint position of the grounding contact can be ensured in a simple manner after the socket outlet has been installed, particularly in confined spaces.
Die Lösung dieser Aufgabe erfolgt durch die Merkmale des Anspruchs und insbesondere dadurch, dass das äußere Ende des Erdungskontaktes außerhalb des Steckdosentopfes angeordnet ist, wodurch die Möglichkeit besteht, den Erdungskontakt an der Außenwand des Steckdosentopfes oder an einem anderen mit dem Sockel verbundenen Bauteil jedoch entfernt vom Boden des Steckdosentopfes abzustützen. Gleichzeitig kann hierdurch verhindert werden, dass der Erdungskontakt durch unsachgemäße Behandlung mit seinem freien Ende teilweise aus dem Schlitz herausgezogen wird.This object is achieved by the features of the claim and in particular in that the outer end of the grounding contact is arranged outside the socket pot, which makes it possible to have the earthing contact on the outer wall of the socket pot or on another component connected to the socket away from the socket Support the bottom of the socket pot. At the same time, this can prevent the ground contact from being partially pulled out of the slot with its free end due to improper handling.
Vorteilhafte Ausführungsformen der Erfindung sind in der Beschreibung, der Zeichnung sowie den Unteransprüchen beschrieben.Advantageous embodiments of the invention are described in the description, the drawing and the subclaims.
Nach einer vorteilhaften Ausführungsform kann der Erdungskontakt an seinem äußeren Ende einen Quersteg aufweisen. Durch einen solchen Quersteg lässt sich das äußere Ende bzw. das freie Ende des Erdungskontaktes entweder an der Abdeckung oder aber an dem Sockel oder einem mit dem Sockel verbundenen Bauteil gegen eine ungewünschte Verschiebung fixieren, so dass der oben erwähnte Effekt nicht auftritt. Wird beispielsweise der Quersteg von der äußeren Wandung des Steckdosentopfes arretiert, so befindet sich diese Stelle - im Gegensatz zum Stand der Technik - nicht im Bereich des Bodens des Steckdosentopfes, sondern nahe der vorderen Sichtfläche der Steckdose, d.h. in einem Bereich, der sich beim Festziehen der Befestigungsschraube für die Abdeckung allenfalls geringfügig verformt. Auf diese Weise ist eine gewünschte Sollposition des durch den Schlitz in den Steckdosentopf ragenden Erdungskontaktes und bei Vorhandensein zweier Erdungskontakte die Einhaltung eines vorgeschriebenen Abstands auf einfache Weise sichergestellt.According to an advantageous embodiment, the ground contact can have a transverse web at its outer end. With such a crossbar, the outer end or the free end of the grounding contact can either be attached to the Fix the cover or on the base or a component connected to the base against undesired displacement, so that the above-mentioned effect does not occur. For example, if the crossbar is locked by the outer wall of the socket pot, this point is - in contrast to the prior art - not in the area of the bottom of the socket pot, but near the front face of the socket, i.e. in an area that is tightened the fastening screw for the cover is at most slightly deformed. In this way, a desired target position of the grounding contact protruding through the slot into the socket outlet and, if two grounding contacts are present, compliance with a prescribed distance is ensured in a simple manner.
Nach einer weiteren vorteilhaften Ausführungsform kann der Quersteg und ein an den Quersteg angrenzender Bereich des Erdungskontaktes einen in Draufsicht T-förmigen Endabschnitt bilden, der insbesondere flächig ausgebildet ist. Hierdurch ist eine symmetrische Anordnung gebildet, die einen zusätzlichen Schutz gegen ein Herausbiegen des Erdungskontaktes aus dem Schlitz bildet.According to a further advantageous embodiment, the transverse web and a region of the grounding contact adjoining the transverse web can form an end section which is T-shaped in plan view and which is in particular flat. This creates a symmetrical arrangement which provides additional protection against bending of the ground contact out of the slot.
Nach einer weiteren vorteilhaften Ausführungsform kann der Sockel oder ein mit dem Sockel fest verbundenes Bauteil zumindest einen Anschlag für den Quersteg bilden. So kann der Sockel beispielsweise eine Wandung oder einen Steg aufweisen, die als Anschlag für den Quersteg ausgebildet sind. Nach einer weiteren vorteilhaften Ausführungsform kann der Anschlag auch an einem Tragring vorgesehen sein, der mit dem Sockel fest verbunden ist und der auf bekannte Weise zur Montage der Steckdose dient.According to a further advantageous embodiment, the base or a component firmly connected to the base can form at least one stop for the transverse web. For example, the base can have a wall or a web, which are designed as a stop for the transverse web. According to a further advantageous embodiment, the stop can also be provided on a support ring which is firmly connected to the base and which is used in a known manner for mounting the socket.
Nach einer weiteren vorteilhaften Ausführungsform kann der Anschlag den Quersteg in einer Richtung quer zur Einsteckrichtung der Steckdose blockieren. Auf diese Weise kann verhindert werden, dass sich der Erdungskontakt im Bereich seines vorderen, d.h. zur Vorderseite der Steckdose gerichteten Endes unerwünscht quer zur Einsteckrichtung bewegt. Bei Vorhandensein von zwei Erdungskontakten wird somit durch den Anschlag eine Bewegung der beiden Erdungskontakte aufeinander zu begrenzt, so dass ein gewünschter Soll-Abstand eingehalten werden kann.According to a further advantageous embodiment, the stop can block the transverse web in a direction transverse to the plug-in direction of the socket. In this way it can be prevented that the grounding contact is undesirable in the area of its front end, that is to say towards the front end of the socket outlet moved transversely to the direction of insertion. If there are two grounding contacts, the stop limits a movement of the two grounding contacts towards one another, so that a desired setpoint distance can be maintained.
Nach einer weiteren vorteilhaften Ausführungsform kann der Anschlag den Quersteg in Richtung der Einsteckrichtung der Steckdose blockieren. Auf diese Weise wird verhindert, dass sich der Erdungskontakt unerwünscht deformiert, wenn auf diesen von oben in Einsteckrichtung Kräfte ausgeübt werden, beispielsweise durch unsachgemäßes Einstecken eines Steckers oder während des Transports.According to a further advantageous embodiment, the stop can block the transverse web in the direction of the plug-in direction of the socket. In this way, it is prevented that the grounding contact is undesirably deformed if forces are exerted on it from above in the insertion direction, for example through improper insertion of a plug or during transport.
Nach einer weiteren vorteilhaften Ausführungsform kann der Erdungskontakt im Bereich seines vorderen bzw. äußeren Endes zu einer Schlaufe gebogen sein, die durch den Schlitz in den Steckdosentopf eintritt und durch den Schlitz wieder aus diesem austritt. Auch dies trägt zu einem Schutz gegen Verbiegen des Erdungskontaktes bei.According to a further advantageous embodiment, the ground contact can be bent in the area of its front or outer end to form a loop which enters the socket through the slot and exits it again through the slot. This also contributes to protection against bending of the ground contact.
Nach einem weiteren Aspekt der vorliegenden Erfindung betrifft dieser einen Erdungsbügel, insbesondere für eine Schutzkontaktsteckdose der vorstehend beschriebenen Art, wobei der Erdungsbügel eine Basis und zumindest einen mit der Basis verbundenen Erdungskontakt aufweist, welcher an seinem äußeren (freien) Ende einen Quersteg aufweist. Der Erdungsbügel kann wie vorstehend beschrieben ausgebildet sein. Hierbei kann es vorteilhaft sein, wenn der Erdungskontakt zu einer Schlaufe gebogen ist, deren Krümmung einen Wendepunkt aufweist. Hierdurch lässt sich der Quersteg beispielsweise parallel zum Boden des Steckdosentopfes orientieren, so dass durch eine entsprechende Anschlagfläche eine Anlage des Querstegs mit geringsten Toleranzen sichergestellt ist.According to a further aspect of the present invention, this relates to a grounding bracket, in particular for a protective contact socket of the type described above, the grounding bracket having a base and at least one grounding contact connected to the base, which has a transverse web at its outer (free) end. The grounding bracket can be designed as described above. It can be advantageous here if the grounding contact is bent into a loop, the curvature of which has a point of inflection. As a result, the transverse web can be oriented, for example, parallel to the bottom of the socket outlet, so that a contact surface of the transverse web with the lowest tolerances is ensured by a corresponding stop surface.
Nach einer weiteren vorteilhaften Ausführungsform kann der Erdungsbügel ein einstückiges Stanz-Biegeteil mit einer streifenförmigen Basis sein, die an ihren beiden Enden jeweils einen Erdungskontakt aufweist, dessen äußeres Ende einen Quersteg aufweist, wobei insbesondere in der Mitte der Basis eine Befestigungsöffnung vorgesehen sein kann. Ein solcher Erdungsbügel lässt sich kostengünstig herstellen, was insbesondere für einen Massenartikel wie Steckdosen von großem Vorteil ist.According to a further advantageous embodiment, the grounding bracket can be a one-piece stamped and bent part with a strip-shaped base, which has a grounding contact at each of its two ends, the outer end of which has a transverse web, wherein a fastening opening can be provided in the center of the base in particular. Such a grounding bracket can be manufactured inexpensively, which is of great advantage in particular for a mass-produced item such as sockets.
Nachfolgend wird die vorliegende Erfindung rein beispielhaft anhand vorteilhafter Ausführungsformen und unter Bezugnahme auf die beigefügten Zeichnungen beschrieben. Es zeigen:
- Fig. 1
- eine perspektivische Ansicht einer Schutzkontaktsteckdose;
- Fig. 2
- die perspektivische Ansicht von
Fig. 1 mit abgenommenem Sichtrahmen und abgenommener Abdeckung; - Fig. 3
- eine perspektivische Ansicht eines Erdungsbügels;
- Fig. 4
- eine Teilschnittansicht einer weiteren Ausführungsform eines Erdungsbügels mit aufgesetzter Abdeckung;
- Fig. 5 bis 7
- perspektivische Teilansichten der Schutzkontaktsteckdose von
Fig. 1 und 2 ; - Fig. 8
- eine Teilschnittansicht einer weiteren Ausführungsform einer Schutzkontaktsteckdose;
- Fig. 9
- eine Teilschnittansicht der Schutzkontaktsteckdose von
Fig. 8 mit eingestecktem, jedoch nicht dargestelltem Stecker; - Fig. 10
- eine Teilschnittansicht einer weiteren Ausführungsform einer Schutzkontaktsteckdose; und
- Fig. 11
- eine Teilschnittansicht der Schutzkontaktsteckdose von
Fig. 10 mit eingestecktem, jedoch nicht dargestelltem Stecker.
- Fig. 1
- a perspective view of a protective contact socket;
- Fig. 2
- the perspective view of
Fig. 1 with removed viewing frame and removed cover; - Fig. 3
- a perspective view of a grounding bracket;
- Fig. 4
- a partial sectional view of a further embodiment of a grounding bracket with an attached cover;
- Figures 5 to 7
- partial perspective views of the socket outlet from FIG
Figs. 1 and 2 ; - Fig. 8
- a partial sectional view of a further embodiment of a protective contact socket;
- Fig. 9
- a partial sectional view of the socket outlet from FIG
Fig. 8 with plugged in but not shown plug; - Fig. 10
- a partial sectional view of a further embodiment of a protective contact socket; and
- Fig. 11
- a partial sectional view of the socket outlet from FIG
Fig. 10 with plugged in but not shown plug.
Im montierten Zustand ist auf den Sockel 12 ein Sichtrahmen 20 aufgelegt, der von einer Abdeckung 22 gehalten ist, die mit dem Sockel 12 verschraubt ist. Die Abdeckung 22 ist auf an sich bekannte Art und Weise einstückig mit einem Steckdosentopf 24 versehen, in den ein passender Schutzkontaktstecker eingesteckt werden kann. In der Umfangswand des Steckdosentopfes 24 sind zwei diametral gegenüberliegende Schlitze 26 vorgesehen (in
Zur Montage der Steckdose 10 ist an dem Sockel 12 ein Tragring 28 befestigt, mit dem der Sockel beispielsweise in einer Hohlwanddose verschraubt werden kann. Zusätzlich sind Befestigungskrallen 30 vorgesehen, mit denen der Sockel in einer Wand oder Dose verklemmt werden kann.To mount the
Die
Wie weiterhin
Schließlich zeigt
Um ein Einführen der Abdeckung 22 über den Erdungskontakt 18 zu erleichtern, sind bei dieser Ausführungsform an dem Quersteg 34 zwei gekrümmte Zungen 46 vorgesehen, die beim Aufsetzen der Abdeckung 22 ein Einführen des Erdungskontaktes 18 in den Schlitz 26 erleichtern, der in der Umfangswand des Steckdosentopfes 24 vorgesehen ist.In order to make it easier to insert the
Wie gut zu erkennen ist, bildet der Quersteg 34 bei dieser Ausführungsform einen Anschlag für den Erdungskontakt 18, der sich nicht im Bereich des Bodens 25 des Steckdosentopfes 24 befindet. Vielmehr fixiert der Quersteg 34 die Lage des Erdungskontaktes 18 in einem Bereich der Umfangswand des Steckdosentopfes 24, der sich nahe zum Bereich des Eintritts des Steckdosentopfes 24 befindet. Dieser Bereich verformt sich allenfalls geringfügig, wenn der Boden 25 durch Anziehen einer Befestigungsschraube verformt wird.As can be clearly seen, the
Besonders vorteilhaft ist die erfindungsgemäße Anordnung auch bei einer Ausführungsform wie sie in
Claims (14)
dass das äußere Ende des Erdungskontaktes (18) außerhalb des Steckdosentopfes (24) angeordnet ist.Earthing contact socket (10), comprising a base (12) with electrical plug contacts (14), a grounding bracket (15) fastened to the base (12), a base (16) and at least one grounding contact (18) connected to the base (16) ), as well as a cover (22) provided with a socket pot (24) with at least one slot (26) through which the grounding contact (18) protrudes into the socket pot (24), characterized in that
that the outer end of the grounding contact (18) is arranged outside the socket pot (24).
dadurch gekennzeichnet,
dass der Erdungskontakt (18) an seinem äußeren Ende einen Quersteg (34) aufweist.Earthing contact socket according to claim 1,
characterized,
that the grounding contact (18) has a transverse web (34) at its outer end.
dadurch gekennzeichnet,
dass der Quersteg (34) und ein angrenzender Bereich des Erdungskontaktes (18) einen in Draufsicht T-förmigen Endabschnitt (36) bilden.Earthing contact socket according to claim 1 or 2,
characterized,
that the transverse web (34) and an adjoining area of the grounding contact (18) form an end section (36) which is T-shaped in plan view.
dadurch gekennzeichnet,
dass der Sockel (12) oder ein mit dem Sockel (12) fest verbundenes Bauteil (28, 38) zumindest einen Anschlag für den Quersteg (34) bildet.Protective contact socket according to one of the preceding claims,
characterized,
that the base (12) or a component (28, 38) firmly connected to the base (12) forms at least one stop for the transverse web (34).
dadurch gekennzeichnet,
dass der Anschlag den Quersteg (34) in einer Richtung quer zur Einsteckrichtung der Steckdose (10) blockiert.Earthing contact socket according to claim 4,
characterized,
that the stop blocks the transverse web (34) in a direction transverse to the insertion direction of the socket (10).
dadurch gekennzeichnet,
dass der Anschlag den Quersteg (34) in Richtung (K) der Einsteckrichtung der Steckdose (10) blockiert.Earthing contact socket according to claim 4 or 5,
characterized,
that the stop blocks the transverse web (34) in the direction (K) of the plug-in direction of the socket (10).
dadurch gekennzeichnet,
dass diese einen Tragring (28) aufweist, und dass ein Anschlag für den Quersteg (34) durch den Tragring (28) gebildet ist.Protective contact socket according to one of the preceding claims,
characterized,
that this has a support ring (28), and that a stop for the transverse web (34) is formed by the support ring (28).
dadurch gekennzeichnet,
dass der Erdungskontakt (18) zu einer Schlaufe gebogen ist, die durch den Schlitz (26) in den Steckdosentopf (24) eintritt und durch den Schlitz (26) wieder aus diesem austritt.Protective contact socket according to one of the preceding claims,
characterized,
that the earthing contact (18) is bent into a loop which enters the socket pot (24) through the slot (26) and exits it again through the slot (26).
dadurch gekennzeichnet,
dass die Krümmung der Schlaufe einen Wendepunkt (W) aufweist.Earthing contact socket according to claim 8,
characterized,
that the curvature of the loop has a point of inflection (W).
dass der Erdungskontakt (18) an seinem äußeren Ende einen Quersteg (34) aufweist.Earthing bracket (15), in particular for a protective contact socket (10) according to one of the preceding claims, which has a base (16) and at least has a grounding contact (18) connected to the base (16), characterized in that
that the grounding contact (18) has a transverse web (34) at its outer end.
dadurch gekennzeichnet,
dass der Quersteg (34) und ein angrenzender Bereich des Erdungskontaktes (18) einen in Draufsicht T-förmigen Endabschnitt (36) bilden, der insbesondere flächig ausgebildet istEarthing bracket according to claim 10,
characterized,
that the transverse web (34) and an adjoining area of the grounding contact (18) form an end section (36) which is T-shaped in plan view and which, in particular, is flat
dadurch gekennzeichnet,
dass der Erdungskontakt (18) zu einer Schlaufe gebogen ist.Earthing bracket according to one of the preceding claims 10 or 11,
characterized,
that the ground contact (18) is bent into a loop.
dadurch gekennzeichnet,
dass die Krümmung der Schlaufe einen Wendepunkt (W) aufweist.Earthing bracket according to claim 12,
characterized,
that the curvature of the loop has a point of inflection (W).
dadurch gekennzeichnet,
dass dieser ein einstückiges Stanz-Biegeteil mit einer streifenförmigen Basis (16) ist, die an ihren beiden Enden jeweils einen Erdungskontakt (18) aufweist, dessen äußeres Ende einen Quersteg (34) aufweist, wobei insbesondere in der Mitte der Basis (16) eine Befestigungsöffnung (32) vorgesehen ist.Earthing bracket (15) according to one of the preceding claims 10-13,
characterized,
that this is a one-piece stamped and bent part with a strip-shaped base (16) which has a grounding contact (18) at each of its two ends, the outer end of which has a transverse web (34), in particular in the middle of the base (16) a Mounting opening (32) is provided.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020112730.8A DE102020112730A1 (en) | 2020-05-11 | 2020-05-11 | PROTECTIVE SOCKET |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3926762A1 true EP3926762A1 (en) | 2021-12-22 |
EP3926762B1 EP3926762B1 (en) | 2024-03-13 |
Family
ID=75690223
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21305476.0A Active EP3926762B1 (en) | 2020-05-11 | 2021-04-12 | Protective contact socket |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3926762B1 (en) |
DE (1) | DE102020112730A1 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1008805B (en) * | 1955-09-10 | 1957-05-23 | Albrecht Jung G M B H | Earthing contact socket |
FR1363779A (en) * | 1962-07-28 | 1964-06-12 | Siemens Ag | Socket with protective contacts |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE512969C (en) | 1930-11-21 | Siemens Schuckertwerke Akt Ges | Plug-in device with contact elements for connecting an earthed or zeroed line connected to the socket with a movable earth line connected to the plug | |
DE1490314A1 (en) | 1962-07-28 | 1968-12-19 | Siemens Ag | Socket with protective contact parts |
-
2020
- 2020-05-11 DE DE102020112730.8A patent/DE102020112730A1/en active Pending
-
2021
- 2021-04-12 EP EP21305476.0A patent/EP3926762B1/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1008805B (en) * | 1955-09-10 | 1957-05-23 | Albrecht Jung G M B H | Earthing contact socket |
FR1363779A (en) * | 1962-07-28 | 1964-06-12 | Siemens Ag | Socket with protective contacts |
Also Published As
Publication number | Publication date |
---|---|
DE102020112730A1 (en) | 2021-11-11 |
EP3926762B1 (en) | 2024-03-13 |
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